Port Augusta power station closure and post-closure plan ......target species "Wasteland" effect,...
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Port Augusta power stations closure and post-closure plan, May 2018 Appendices
Transcript of Port Augusta power station closure and post-closure plan ......target species "Wasteland" effect,...
Port Augusta power stations closure and post-closure plan May 2018
Appendices
Appendix A
bull -~ - - alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 1 Northern Power Station CW channels Playford workshops amp environs as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
U l
Planned t
Completion Date i m
Consequence Likelihood Rating amp Priority
1 General Office activities Energy use Resource use
Energy overuse Resource 5 Insignificant C Likely Low 22 waste disposal costs and
recyclingsalvage revenue E ective 5 Insignificant C Likely Low 22
2 General General waste management
General waste Resource use Excessive waste
generation Resource 4 Minor C Likely Medium 17
Waste segregation JSP 320 Unloading and Handling of Rubbish Skips monitor re
contamination E ective 5 Insignificant E Unlikely Low 25
3 General
equipment decommissioning
Industrial waste management (ex-asbestos) (Waste oil considered separately)
Industrial waste [local] storage and transport to site storage area
Waste disposalrecycling soilgroundwater contamination
Improper waste disposal contamination
of waste destination enforcement action
Waste 3 Moderate C Likely High 11
Waste Management at APS S38 Disposal Procedure for Aerosol cans etc S311 Storage Handling and Disposal of solvents etc amp S315 Storage Handling
and Disposal of waste oil JSP 320 Unloading and Handling of Rubbish Skips
monitor to ensure clear identification samplinganalysis if required Maintain
waste disposal records (eg WTCs or WTFs)
E ective 3 Moderate E Unlikely Low 21
4 APS post
production
Asbestos management Asbestos removal storage and disposal
Air quality
Airborne asbestos enforcement action
Human Health 2 Major D Possible High 12
S32 Asbestos Management System amp site procedures qualified contractor S37 Guidelines for the safe use of insulation of
materials containing SMFs Asbestos Register air monitoring waste disposal
records (WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
5 General
decommissioning
Industrial Waste water (contaminated drains and ash)
Overflows Marine pollution
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
JSP117 Drain cleaning amp JSP228 Ash Pit cleaning block drains within work areas
that discharge directly to marine environment if practicable Emergency
Response Plan Spill response IMS water monitoring programme disposal records
(WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
13 Heath Safety amp
Security
Implement contingency plan decommissioningdemo lition
environmental contingencies
Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency response plans (reviewed annually) review for decommissioning demolition activities (after project plan
has been developed) Crisis Management Plan Review response equipment and
training Support procedures eg Incident Management System Station Instruction
S17 (Spill Response) S316 (Spill Reporting) S18 (Fire Reporting) S4G29
Hazard inspections amp JSP385 Use of emergency boat IMS IMS
E ective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental
Management Plans to be developed incorporating specific measures for
activities with potential to cause environmental harm
Alinta Energy Earlymid 2016
14 Heath Safety amp
Security
Fire on site decommissioningdemo lition
Contaminated fire water discharge
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Contaminated drains system Emergency Response Plan Crisis Management Plan
review options re containment of fire water eg within ABC Lake in preference to
discharge to ash pond storage Maintenance routines Station Instruction
S17 (Spill Response) IMS Plant monitoring
E ective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
15 Heath Safety amp
Security
Site security decommissioningdemo lition
vandalism Site amenity Site damage injury to
persons Security 3 Moderate D Possible Medium 16
Site security systems Emergency Response Plan
E ective 3 Moderate E Unlikely Low 21
16 Heath Safety amp
Security Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora enforcement action
Environmental 4 Minor D Possible Low 20 Restricted spraying to low wind speed
wind speed estimates records E ective 4 Minor E Unlikely Low 23
18 Heath Safety amp
Security
Land management landscaping (post decommissioningdemo lition)
Maintaining amp improving landscaping
Improved site amenity Poor visual amenity
soil erosion dust Environmental
Final landforms and potential landscaping plan
E ective
19 Heath Safety amp
Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections E ective 4 Minor E Unlikely Low 23
20 Heath Safety amp
Security
Waste recycling area(s) decommissioningdemo lition
Waste management
Resource use
Improper waste disposal contamination
of waste destination enforcement action
Resource 3 Moderate E Unlikely Low 21
Waste segregation (to improve recycling re-use) Waste management Process Site
Map S311 Storage Handling and Disposal of solvents etc Determine if the
area is adequate for decommissioningdemolition Establish additional areas for staging of material prior to re-use on site andor disposal
Control runoff (via containment pond(s) Site inspections routine visits by external recycling contractor S37 Guidelines for
the safe use of insulation materials containing SMF waste recycling records
Waste disposal records (WTCs and WTFs)
E ective 4 Minor E Unlikely Low 23
21 Heath Safety amp
Security
Disposal of mercury-containing lighting (eg fluoros) decommissioning
Landfill Soilgroundwater contamination
Improper waste disposal contamination
of waste destination enforcement action
Resource 4 Minor E Unlikely Low 23
Waste segregation managed by appropriate waste management company
Waste management Process Site Map S38 Disposal Procedure for Aerosol cans
empty fluid drums small batteries permalubes and mercury globes Provide labelled containers (eg 200L drums) for
storage prior to removal Waste disposal records (WTCs and WTFs)
E ective 5 Insignificant E Unlikely Low 25
22 Heath Safety amp
Security
Road traffic decommissioningdemo lition
Dust emissions Air quality Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust suppressant if required) Hi VolDustTrak dust monitoring
on site boundary
E ective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement Action Owner
Strategic or Approved Action
U l
Planned t
Completion Date i m
Consequence Likelihood Rating amp Priority
23 Environmental
Services
Environmental Compliance decommissioningdemo lition
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting
environmental checklist for decommissioningdemolition Surrender
of EPA Licence Site Environmental Awareness Induction S4G29 Hazard
Inspections update induction material for decommissioningdemolition Water
Sampling Program stack and ambient monitoring reporting on EMP and
reporting to EPA
E ective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance requirements and regulatory in Alinta Closure
Environmental Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environmental
Services
Site environmental performance monitoring decommissioningdemo lition
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS
Environmental water sampling for SS pH and salinity Additional siteboundary
monitoring required during decommissioningdemolition (eg HI_Vol
and noise) IMS regular monitoring reports (eg weekly) Monitoring
programmes and regular reporting
E ective 3 Moderate E Unlikely Low 21
26 Environmental
Services
Ambient environmental monitoring instrumentation calibration (decommissioningdem olition)
Environmental monitoring
Non compliance
Nil Improper process in place
Procedural 3 Moderate D Possible Medium 16
JSP400 APS Environmental water sampling at APS Calibration program and
records Maintenance routines E ective 3 Moderate E Unlikely Low 21
27 Environmental
Services
Performance Reporting decommissioningdemo lition
Compliance Non compliance (EPA reporting monthly (required by ECA Schedule 1 11))
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18 Sample Management JSPs Reporting
calendar ambient monitoring E ective 2 Major E Unlikely Medium 18
Specific reference to compliance and regulatory requirements in Alinta
Closure Environmental Management Plan including reporting timetable
Alinta Energy Through to demolition completion
28 Environmental
Services
Decommissioningdem olition
Non compliance (EPA reporting (annual))
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Reporting calendar Internal management
reporting ambient monitoring E ective 3 Moderate E Unlikely Low 21
29 Environmental
Services
Pre-decommissioning (last operational year)
Non compliance (Annual Independent Verification of Monitoring Program)
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Reporting calendar water quality
monitoring program E ective 3 Moderate E Unlikely Low 21
30 Environmental
Services Pre-decommissioning (last operational year)
Annual NPI reporting
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Reporting calendar Usage of reportable
substances data E ective 3 Moderate E Unlikely Low 21
31 Environmental
Services
Implement and monitor program in response to environmental concerns (decommissioningdem olition)
Environmental Improvement Program implementation
Environmental improvements
Nil Improper process in place
Procedural IMS regular updating of actions E ective
32 Environmental
Services
Discharges into the marine environment decommissioningdemo lition (including use or removal of bulk chemicals)
Contaminated drains SPELS
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Chemical oil and fuel bunding oil separation stormwater segregation
monitoring of stormwater control systems S310 (Ferrous sulphate) S311
(Solvents) S313 (Sodium hypochlorite) S315 (Waste oil) Pump outs
Decommissioning and demolition within containment (minimise direct discharges
to marine environment) Emergency Response Plan IMS water monitoring
programme site inspections
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
33 Environmental
Services
Site operations decommissioningdemo lition
Noise Nuisance Public nuisance
complaints enforcement action
Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm weekdays 8am-6pm weekends) boundary noise monitoring
E ective 3 Moderate E Unlikely Low 21
34 Environmental
Services
Site operations decommissioningdemo lition
Spillage of stored materials and wastes
Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 2 Major E Unlikely Medium 18
IMS regular updating of actions site inspections (required by ECA) S31
Chemwatch S311 Storage Handling and Disposal of solvents etc Emergency Response Plan Crisis Management Plan
IMS inspection records
E ective 3 Moderate E Unlikely Low 21
35 Environmental
Services
Historical operations post decommissioningdemo lition
Discharges to soilgroundwater landfills
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular monitoring of
known groundwater contamination E ective 3 Moderate E Unlikely Low 21
36 Environmental
Services
Environmental incidents decommissioningdemo lition
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for decommissioningdemolition activities)
IMS Incident Management System E ective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental
Management Plans to be developed incorporating specific measures for
activities with potential to cause environmental harm Site incident
reporting mechanism to be used (IMS)
Alinta Energy Earlymid 2016
37 Environmental
Services
Environmental awareness decommissioningdemo lition
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for decommissioningdemolition activities) training and induction records
(for decommissioning demolition induction)
E ective 4 Minor E Unlikely Low 23
38 Environmental
Services
Environmental auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition requirements
(eg demolition approval conditions) E ective 3 Moderate E Unlikely Low 21
39 Environmental
Services
Community complaints decommissioningdemo lition
Amenity community perception of organisation
Nuisance Complaints local
action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to
complainant Complaints Register Internal media advisor Reporting to management
E ective 3 Moderate E Unlikely Low 21
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
U l
Planned t
Completion Date i m
Consequence Likelihood Rating amp Priority
40 Environmental
Services
Annual community consultation post operation
Community perception of organisation
Non compliance Nil Improper process in
place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar E ective 3 Moderate E Unlikely Low 21
41 Environmental
Services
Potable water use decommissioningdemo lition
Excessive potable water use
Resource waste Water overuse financial cost increased
risk of Gulf contamination
Resource 3 Moderate E Unlikely Low 21 Re-location of services prior to demolition E ective 4 Minor E Unlikely Low 23
42 Operations Tech
Support
Environmental monitoring instrumentation calibration (decommissioningdem olition)
Environmental monitoring
Non compliance
Nil Improper process in place
Procedural 3 Moderate D Possible Medium 16
Calibration program and records Maintenance routines (applied to ambient
monitoring) E ective 3 Moderate E Unlikely Low 21
46 Post production coal conveyors
Coal conveyors Coal dust (conveyorstransfe rs)
Air quality Personnel exposure
limit exceedence public nuisance complaints
enforcement action
Environmental 3 Moderate C Likely High 11 wash down of built up dust E ective 5 Insignificant E Unlikely Low 25
47 Post production
coal bins
Coal bin storage Coal dust Air quality Personnel exposure
limit exceedence public nuisance complaints
enforcement action
Environmental 3 Moderate D Possible Medium 16 Wash down of built up dust ambient
monitoring maintenance records E ective 3 Moderate E Unlikely Low 21
48 Fireexplosion Air quality
Coal dust explosion Fire 2 Major D Possible High 12
Review risk assessments for decommissioningdemolition Emergency
Response Plan IMS E ective 3 Moderate E Unlikely Low 21
49 APS post production
Coal plant washdown Marine discharge Water quality Contaminated water
entering the Gulf damage to Gulf waters
enforcement action
Environmental 4 Minor D Possible Low 20
Containment of washwater JSP 107 Bunker Washing water monitoring
programme E ective 4 Minor E Unlikely Low 23
50 APS post production
Decommissioningdem olition
Oil spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21
Contaminated drain system S17 Oil Spill Procedure review and enhance containment options Emergency
Response Plan IMS Maintenance records
E ective 4 Minor E Unlikely Low 23
51 APS post production
Decommissioningdem olition
Fuel oil spillage (eg gun malfunction)
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate D Possible Medium 16
Operating controls S17 Oil Spill procedure contaminated drains Emergency Response Plan IMS
E ective 3 Moderate E Unlikely Low 21
52 APS post
production
Decommissioningdem olition
Seawater flow Ecological impact (eg fauna loss)
ReductionIncrease in number amp abundance of
local marine species Environmental 3 Moderate E Unlikely Low 21
Review options for cooling water channels (eg breach wall)
E ective 3 Moderate E Unlikely Low 21
53 APS post
production
Decommissioningdem olition
Contamination of condenser cooling water
Ecological impact Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 2 Major E Unlikely Medium 18 Review options for condensers (post
production) visual E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
54 APS post
production
Boiler water drainage Treated water discharge
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 4 Minor D Possible Low 20 drainage into Ash pit Operating controls
ambient water monitoring programme E ective 4 Minor E Unlikely Low 23
55 APS post
production
Decommissioningdem olition
Hydrogen gas leakage
Air quality fire hazard Explosion personnel
exposure Fire 2 Major E Unlikely Medium 18
Evacuation of hydrogen Maintenance routines Emergency Response Plan
Crisis Management Plan IMS hydrogen monitoring
E ective 2 Major E Unlikely Medium 18
56 APS post
production
Auxiliary boiler operation decommissioningdemo lition
Spillage of dosed water
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21 Operating controls containment
Maintenance routines E ective 3 Moderate E Unlikely Low 21
57 APS post
production
Fuel oil removal Fuel oil spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21
Contaminated drains Operating controls S17 Oil Spill procedure Emergency
Response Plan IMS E ective 3 Moderate E Unlikely Low 21
58 APS post
production
Emergency diesel generators decommissioningdemo lition
Diesel spillage (loading and operational)
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21
Bunding Operating controls S17 Oil Spill procedure tested transfer hoses
Maintenance routines Emergency Response Plan IMS
E ective 3 Moderate E Unlikely Low 21
59 APS post
production
Fly ashbottom ash handling systems decommissioningdemo lition
Spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 2 Major E Unlikely Medium 18 Flush ash systems to ash storage area
water monitoring programme E ective 4 Minor E Unlikely Low 23
60 APS post
production
Fly ash re-use storage and handling area
Spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 4 Minor D Possible Low 20 Empty and washdown plant Discharge to
containment area E ective 4 Minor E Unlikely Low 23
61 APS post
production
Decommissioningdem olition
Contamination of flow to ash storage pond (eg oil)
Water quality Spill entering ash disposal system discharge to Gulf
waters enforcement action
Environmental 3 Moderate D Possible Medium 16
Contaminated drains oil containment oil handling ash pond controls Ash storage dam inspections Emergency Response
Plan IMS inspection records
E ective 4 Minor E Unlikely Low 23
62 APS post
production
Machine degreasingwashdown
Wastewater discharge
Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 3 Moderate C Likely High 11
Bunded washbays JSP104 Degreasing JSP102 Steam Cleaner Operation
contaminated drain system contained degreasers Quick break degreaser oil
separator S311 Storage Handling and Disposal of solvents etc water monitoring
programme
E ective 4 Minor E Unlikely Low 23
63 APS post
production Air emissions (volatile)
Air quality fire hazard
Fire personnel exposure
Fire 3 Moderate E Unlikely Low 21 Procedures extraction systems E ective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
U l
Planned t
Completion Date i m
Consequence Likelihood Rating amp Priority
64 APS post
production
Oil removal Oil spillage Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 3 Moderate C Likely High 11
Station Instructions S17 Oil Spill procedure S315 Storage Handling and
Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil treatment plant Contaminated drain system Emergency Response Plan IMS water monitoring
programme
E ective 4 Minor E Unlikely Low 23
65 APS post
production
Waste oil storage Oil spillage Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 3 Moderate C Likely High 11
Bunded storage S17 Oil Spill procedure S315 Storage Handling and Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil treatment plant Emergency
Response Plan IMS water monitoring programme
E ective 3 Moderate E Unlikely Low 21
66 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major E Unlikely Medium 18 Bunded storage Emergency Response
Plan Spill response IMS E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
67 APS post
production
Fire Air quality Fire personnel
exposure Fire 3 Moderate E Unlikely Low 21
Storage controls (minimise ignition sources) Emergency Response Plan
Crisis Management Plan IMS E ective 3 Moderate E Unlikely Low 21
68 APS post
production
Discharges into the marine environment
Contaminated drains SPELS
Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 2 Major D Possible High 12
Chemical oil and fuel bunding oil separation maintenance of SPEL tanks
stormwater segregation review of routine to inspect SPEL tanks Emergency
Response Plan IMS water monitoring programme site inspections SPEL
cleanout routines
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
69 APS post
production
Oil -filled electrical equipment decommissioning and removal
Leakage Water quality
Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 2 Major E Unlikely Medium 18
Bunding S17 Oil Spill procedure JSP271 NPS Step-up Unit transformer amp line
isolator maintenance Emergency Response Plan Crisis Management Plan IMS monitoring of oil properties (eg PCB
content)
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
70 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major E Unlikely Medium 18 Containment of oil-filled equipment
Emergency Response Plan E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
71 APS post
production
Fire explosion Air quality
Fire personnel exposure
Fire 2 Major E Unlikely Medium 18 Permits containment E ective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
72 APS post
production
Battery Rooms decommissioning and removal
Acid spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 4 Minor D Possible Low 20
Bunded JSP052 Battery maintenance JSP315 Battery Bank Replacement S31
Chemwatch Maintenance routines Emergency Response Plan IMS
E ective 4 Minor E Unlikely Low 23
73 APS post
production
Fireexplosion (gas generation)
Air quality Fire personnel
exposure Fire 3 Moderate E Unlikely Low 21
Extraction system Maintenance routines Emergency Response Plan IMS
E ective 4 Minor E Unlikely Low 23
74 APS post
production
Fire pumps decommissioning
Fueloil spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 4 Minor E Unlikely Low 23 S17 Oil Spill procedure Emergency
Response Plan IMS E ective 4 Minor E Unlikely Low 23
75 APS post
production
WorkshopsGarage decommissioning and demolition
Removal and disposal of dangerous substances spills
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21
Bunded storage S31 Chemwatch Emergency Response Plan IMS Waste disposal documentation (WTCsWTFs)
E ective 4 Minor E Unlikely Low 23
76 APS post
production
Removal of dangerous substances incompatible storage fire
Air quality Personnel exposure
limit exceedence public nuisance complaints
enforcement action
Environmental 3 Moderate E Unlikely Low 21
Segregation of dangerous substances S31 Chemwatch S311 Storage
Handling and Disposal of solvents etc Emergency Response Plan IMS
E ective 3 Moderate E Unlikely Low 21
77 APS post
production
Disposal of oilycontaminated rags
Contaminated soil Soilgroundwater contamination clean up
actions enforcement actions
Environmental 4 Minor E Unlikely Low 23 Segregation for disposal E ective 5 Insignificant E Unlikely Low 25
78 APS post
production
Grit blasting decommissioning and demolition
particulate emissions
Air quality water quality
Air soil amp groundwater contamination clean up
actions enforcement actions
Environmental 3 Moderate D Possible Medium 16
Removal and disposal of grit washdown prior to demolition Containment of
washdown water E ective 4 Minor E Unlikely Low 23
79 APS post
production
Demolition general Lead emissions (from lead-based paints)
Personnel exposure limit exceedence public
nuisance complaints enforcement action
Environmental 3 Moderate E Unlikely Low 21
lead paint testing dust control processes Maintenance routines lead in paint testing
(as required) and recorded E ective 4 Minor E Unlikely Low 23
80 APS post
production
Refrigerationair conditioning servicing decommissioning (as required)
Release of ozone depleting substances
Depletion of Ozone layer
Environmental harm regulatory enforcement
Environmental 3 Moderate D Possible Medium 16
ARC licensed operators ozone-depleting gas reclaim for decommissioned equipment Audits based on ARC
requirements JSP372 Air Conditioner Maintenance Records of ozone-depleting
substances reclaim etc
E ective 3 Moderate E Unlikely Low 21
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
U l t i m
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
Planned Completion Date
Consequence Likelihood Rating amp Priority
Sewerage system Sewage overflow Water quality Spill entering onsite
81 APS post
production
relocation of services (caused by decommissioning and
drains system discharge to Gulf
waters enforcement Environmental 4 Minor D Possible Low 20
Response to sewer chokes JSP028 Sewage Pit pump and control repairs
Emergency Response Plan IMS E ective 4 Minor E Unlikely Low 23
demolition) action
bullmiddotmiddot - ~- alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 2 Unit 3 Area as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates
records ffective 4 Minor E Unlikely Low 23
18 Heath
Safety amp Security
Land management landscaping (post decommissionin gdemolition)
Maintaining amp improving landscaping
Improved site amenity
Poor visual amenity soil erosion dust
Environmental Final landforms and potential
landscaping plan ffective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections ffective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissionin gdemolition
Dust emissions Air quality Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust
suppressant if required) Hi VolDustTrak dust monitoring on site
boundary
ffective 4 Minor E Unlikely Low 23
23 Environmen tal Services
Environmental Compliance decommissionin gdemolition
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting
environmental checklist for decommissioningdemolition
Surrender of EPA Licence Site Environmental Awareness Induction S4G29 Hazard
Inspections update induction material for
decommissioningdemolition Water Sampling Program stack and
ambient monitoring reporting on EMP and reporting to EPA
ffective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environmen tal Services
Site environmental performance monitoring decommissionin gdemolition
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS
Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during decommissioningdemolition (eg HI_Vol and noise) IMS regular
monitoring reports (eg weekly) Monitoring programmes and regular
reporting
ffective 3 Moderate E Unlikely Low 21
33 Environmen tal Services
Site operations decommissionin gdemolition
Noise Nuisance Public nuisance
complaints enforcement action
Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm
weekdays 8am-6pm weekends) boundary noise monitoring
ffective 3 Moderate E Unlikely Low 21
35 Environmen tal Services
Historical operations post decommissionin gdemolition
Discharges to soilgroundwat er landfills
Soilgroundwater contamination Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular monitoring
of known groundwater contamination
ffective 3 Moderate E Unlikely Low 21
36 Environmen tal Services
Environmental incidents decommissionin gdemolition
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for decommissioningdemolition
activities) IMS Incident Management System
ffective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
37 Environmen tal Services
Environmental awareness decommissionin gdemolition
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for
decommissioningdemolition activities) training and induction records (for decommissioning
demolition induction)
ffective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
38 Environmen tal Services
Environmental auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition requirements (eg demolition
approval conditions)
ffective 3 Moderate E Unlikely Low 21
39 Environmen tal Services
Community complaints decommissionin gdemolition
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to complainant Complaints Register
Internal media advisor Reporting to management
ffective 3 Moderate E Unlikely Low 21
40 Environmen tal Services
Annual community consultation post operation
Community perception of organisation
Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Compliance calendar ffective 3 Moderate E Unlikely Low 21
41 Environmen tal Services
Potable water use decommissionin gdemolition
Excessive potable water use
Resource waste
Water overuse financial cost increased risk of
Gulf contamination Resource 3 Moderate E Unlikely Low 21
Re-location of services prior to demolition
ffective 4 Minor E Unlikely Low 23
bullmiddotmiddot middot~ bullmiddot ~- alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 4a Coal Stockpile amp Rail Loop Area as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed
estimates records ffective 4 Minor E Unlikely Low 23
17 Heath
Safety amp Security
Land management heritage (decommissioningd emolition)
Damage to aboriginal andor post settlement heritage items
Damage to heritage items Damage to or loss of
Native amp Heritage items sites
Heritage 3 Moderate E Unlikely Low 21
Site Environmental Awareness Induction
confirmation of any potential heritage sites within impacted
area
ffective 3 Moderate E Unlikely Low 21
18 Heath
Safety amp Security
Land management landscaping (post decommissioningde molition)
Maintaining amp improving landscaping
Improved site amenity Poor visual amenity soil
erosion dust Environmental
Final landforms and potential landscaping plan
ffective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections ffective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissioningde molition
Dust emissions Air quality
Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads
(use of dust suppressant if required) Hi VolDustTrak
dust monitoring on site boundary
ffective 4 Minor E Unlikely Low 23
23 Environmen tal Services
Environmental Compliance decommissioningde molition
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting environmental
checklist for decommissioningdemolition
Surrender of EPA Licence Site Environmental
Awareness Induction S4G29 Hazard Inspections update
induction material for decommissioningdemolition Water Sampling Program
stack and ambient monitoring reporting on EMP and
reporting to EPA
ffective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
24 Environmen tal Services
Coal stockpile management pre-decommissioning (utilisation of stockpile)
Coal dust Air quality
Limit exceedence public nuisance
complaints enforcement action
Environmental 2 Major C Likely High 7
Dust Management Plan Sprays Water truck JSP 322 -paper mulch Project Group
IMS daily checks and records wind speeddirection
ambient monitoring
ffective 4 Minor E Unlikely Low 23
25 Environmen tal Services
Site environmental performance monitoring decommissioningde molition
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS
JSP403 APS Environmental water sampling for SS pH
and salinity Additional siteboundary monitoring
required during decommissioningdemolition (eg HI_Vol and noise) IMS
regular monitoring reports (eg weekly) Monitoring
programmes and regular reporting
ffective 3 Moderate E Unlikely Low 21
26 Environmen tal Services
Ambient environmental monitoring instrumentation calibration (decommissioningd emolition)
Environmental monitoring
Non compliance
Nil Improper process in place
Procedural 3 Moderate D Possible Medium 16
JSP400 APS Environmental water sampling at APS Calibration program and
records Maintenance routines
ffective 3 Moderate E Unlikely Low 21
33 Environmen tal Services
Site operations decommissioningde molition
Noise Nuisance
Public nuisance complaints
enforcement action Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm weekdays 8am-6pm weekends) boundary
noise monitoring
ffective 3 Moderate E Unlikely Low 21
34 Environmen tal Services
Site operations decommissioningde molition
Spillage of stored materials and wastes
Water quality
Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 2 Major E Unlikely Medium 18
IMS regular updating of actions site inspections (required by ECA) S31
Chemwatch S311 Storage Handling and Disposal of solvents etc Emergency
Response Plan Crisis Management Plan IMS
inspection records
ffective 3 Moderate E Unlikely Low 21
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
35 Environmen tal Services
Historical operations post decommissioningde molition
Discharges to soilgroundwat er landfills
Soilgroundwater contamination Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular
monitoring of known groundwater contamination
ffective 3 Moderate E Unlikely Low 21
36 Environmen tal Services
Environmental incidents decommissioningde molition
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for
decommissioningdemolition activities) IMS Incident Management System
ffective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
37 Environmen tal Services
Environmental awareness decommissioningde molition
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction
(reviewed for decommissioningdemolition
activities) training and induction records (for
decommissioning demolition induction)
ffective 4 Minor E Unlikely Low 23
38 Environmen tal Services
Environmental auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include
decommissioningdemolition requirements (eg demolition
approval conditions)
ffective 3 Moderate E Unlikely Low 21
39 Environmen tal Services
Community complaints decommissioningde molition
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation
Directed response to complainant Complaints Register Internal media
advisor Reporting to management
ffective 3 Moderate E Unlikely Low 21
40 Environmen tal Services
Annual community consultation post operation
Community perception of organisation
Non compliance Nil Improper process in
place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar ffective 3 Moderate E Unlikely Low 21
41 Environmen tal Services
Potable water use decommissioningde molition
Excessive potable water use
Resource waste Water overuse financial
cost increased risk of Gulf contamination
Resource 3 Moderate E Unlikely Low 21 Re-location of services prior
to demolition ffective 4 Minor E Unlikely Low 23
43 Loco
refueling area
Loco refueling area (decommissioningd emolition)
Historical oilfuel spillage
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 3 Moderate C Likely High 11 Review for any potential
contamination ffective 3 Moderate E Unlikely Low 21
44
Post production
coal stockpile
area
Runoff from coal stockpile area (post operation)
Water quality (runoff)
Water quality Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 3 Moderate C Likely High 11
Collection no direct marine discharges water monitoring
programme ffective 4 Minor E Unlikely Low 23
45
Post production
coal stockpile
area
Post operation coal stockpile area
Fire (spontaneous combustion)
Air quality Fire smokeparticulate
emissions public amp personnel exposure
Fire 3 Moderate E Unlikely Low 21
Develop strategy to reduce risks of spon com In post operational coal stockpile area Monitoring by Alinta
staff IMS
ffective 4 Minor E Unlikely Low 23
middot bullmiddotmiddot - ~ - al1ntaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 4b Ash Dam ABC Lake amp Polishing Pond as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
6 Heath
Safety amp Security
Ash storage dam management decommissioning demolition
Dust emissions Air quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 3 Moderate D Possible Medium 16
Maintenance work with periodic salt water flooding to maintain crust plus chemical
coating treatment of levees Ash Storage Dam Development Recommendations Ash Storage Dam Management Responsibilities Matrix Develop strategies for management
during decommissioningdemolition and long-term APS Ash Storage Dam
Inspection Checklist JSP234 Ash disposal pipe laying JSP235 Vehicle operation in
Ash Pond area IMS daily inspections ambient monitoring 3 monthly inspections
Effective 3 Moderate E Unlikely Low 21
7 Heath
Safety amp Security
Water emissions (including seepage)
Water quality (carryover of ash trace elements nutrients pH)
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major D Possible High 12
Refer to 6 detention time seeping interception and pump-back review need for
additional floating curtainoil capture daily inspections weekly water sampling water quality monitoring programme 3 monthly
inspections
Effective 3 Moderate E Unlikely Low 21
8 Heath
Safety amp Security
Groundwater contamination
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18 Refer to 7 groundwater monitoring
programme Effective 4 Minor D Possible Low 20
9 Heath
Safety amp Security
Visual impact Amenity Complaints local action
media attention regulatory involvement
Community 3 Moderate C Likely High 11 Screening planting inspection records Effective 4 Minor D Possible Low 20
10 Heath
Safety amp Security
Breeding of midges
Amenity Public health niusance complaints local action
media attention regulatory involvement
Community 3 Moderate C Likely High 11
Control of salinity Site inspections long-term plan for ash storage area Weekly
water sampling Effective 4 Minor E Unlikely Low 23
11 Heath
Safety amp Security
Ash storage dam leakage (eg levee breach) post decommissioning demolition
Water quality Marine contamination mangrove destruction
Marine contamination clean up actions
enforcement actions Environmental 2 Major E Unlikely Medium 18
Refer to 5 perimeter dam wall design inspections Emergency Response Plan
Crisis Management Plan IMS Ash Storage Pond Closure Plan (need to consider long-term stability of levees) daily inspections 3
monthly inspections inspection records
Effective 2 Major E Unlikely Medium 18
12 Heath
Safety amp Security
Land contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major E Unlikely Medium 18
Refer to 6 daily inspections access controls review risks from
decommissioning processes (eg oilhazardous materials removal from
equipment) contain on site Emergency Response Plan Crisis Management Plan
IMS daily inspections
Effective 2 Major E Unlikely Medium 18
14 Heath
Safety amp Security
Fire on site decommissioning demolition
Contaminated fire water discharge
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Contaminated drains system Emergency Response Plan Crisis Management Plan
review options re containment of fire water eg within ABC Lake in preference to
discharge to ash pond storage Maintenance routines Station Instruction
S17 (Spill Response) IMS Plant monitoring
Effective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
15 Heath
Safety amp Security
Site security decommissioning demolition
vandalism Site amenity Site damage injury to
persons Security 3 Moderate D Possible Medium 16
Site security systems Emergency Response Plan
Effective 3 Moderate E Unlikely Low 21
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates records
Effective 4 Minor E Unlikely Low 23
18 Heath
Safety amp Security
Land management landscaping (post decommissioning
Maintaining amp improving landscaping
Improved site amenity Poor visual amenity soil
erosion dust Environmental
Final landforms and potential landscaping plan
Effective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections Effective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissioning demolition
Dust emissions Air quality Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust suppressant if required) Hi VolDustTrak dust monitoring
on site boundary
Effective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement Action Owner
Strategic or Approved Action
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
23 Environment al Services
Environmental Compliance decommissioning demolition
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting
environmental checklist for decommissioningdemolition Surrender of
EPA Licence Site Environmental Awareness Induction S4G29 Hazard
Inspections update induction material for decommissioningdemolition Water
Sampling Program stack and ambient monitoring reporting on EMP and reporting
to EPA
Effective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environment al Services
Site environmental performance monitoring decommissioning demolition
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during decommissioningdemolition (eg HI_Vol and noise) IMS regular monitoring reports (eg
weekly) Monitoring programmes and regular reporting
Effective 3 Moderate E Unlikely Low 21
26 Environment al Services
Ambient environmental monitoring instrumentation calibration (decommissioning demolition)
Environmental monitoring
Non compliance
Nil Improper process in place
Procedural 3 Moderate D Possible Medium 16
JSP400 APS Environmental water sampling at APS Calibration program and records
Maintenance routines Effective 3 Moderate E Unlikely Low 21
32 Environment al Services
Discharges into the marine environment decommissioning demolition (including use or removal of bulk chemicals)
Contaminated drains SPELS
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Chemical oil and fuel bunding oil separation stormwater segregation
monitoring of stormwater control systems S310 (Ferrous sulphate) S311 (Solvents) S313 (Sodium hypochlorite) S315 (Waste
oil) Pump outs Decommissioning and demolition within containment (minimise
direct discharges to marine environment) Emergency Response Plan IMS water monitoring programme site inspections
Effective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
33 Environment al Services
Site operations decommissioning demolition
Noise Nuisance Public nuisance complaints
enforcement action Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm weekdays 8am-6pm weekends) boundary noise monitoring
Effective 3 Moderate E Unlikely Low 21
34 Environment al Services
Site operations decommissioning demolition
Spillage of stored materials and wastes
Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 2 Major E Unlikely Medium 18
IMS regular updating of actions site inspections (required by ECA) S31
Chemwatch S311 Storage Handling and Disposal of solvents etc Emergency
Response Plan Crisis Management Plan IMS inspection records
Effective 3 Moderate E Unlikely Low 21
35 Environment al Services
Historical operations post decommissioning demolition
Discharges to soilgroundwat er landfills
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular monitoring of
known groundwater contamination Effective 3 Moderate E Unlikely Low 21
36 Environment al Services
Environmental incidents decommissioning demolition
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for decommissioningdemolition activities) IMS
Incident Management System Effective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to be
used (IMS)
Alinta Energy Earlymid 2016
37 Environment al Services
Environmental awareness decommissioning demolition
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for decommissioningdemolition activities) training and induction records
(for decommissioning demolition induction)
Effective 4 Minor E Unlikely Low 23
38 Environment al Services
Environmental auditing (and forwarding summary to EPA) review requirement post
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition requirements
(eg demolition approval conditions) Effective 3 Moderate E Unlikely Low 21
39 Environment al Services
Community complaints decommissioning demolition
Amenity community perception of organisation
Nuisance
Complaints local action media attention
regulatory involvement Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to
complainant Complaints Register Internal media advisor Reporting to management
Effective 3 Moderate E Unlikely Low 21
40 Environment al Services
Annual community consultation post operation
Community perception of organisation
Non compliance Nil Improper process in
place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar Effective 3 Moderate E Unlikely Low 21
41 Environment al Services
Potable water use decommissioning demolition
Excessive potable water use
Resource waste Water overuse financial cost increased risk of
Gulf contamination Resource 3 Moderate E Unlikely Low 21 Re-location of services prior to demolition Effective 4 Minor E Unlikely Low 23
bullmiddotmiddot -~ - - alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 7 Hospital Creek as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure
Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates
records ffective 4 Minor E Unlikely Low 23
18 Heath
Safety amp Security
Land management landscaping (post decommissio ningdemolitio n)
Maintaining amp improving landscaping
Improved site amenity
Poor visual amenity soil erosion dust
Environmental Final landforms and potential
landscaping plan ffective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections ffective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissio ningdemolitio n
Dust emissions Air quality Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust suppressant if required) Hi VolDustTrak dust monitoring on
site boundary
ffective 4 Minor E Unlikely Low 23
23 Environmen tal Services
Environment al Compliance decommissio ningdemolitio n
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA
reporting environmental checklist for decommissioningdemolition Surrender of EPA Licence Site
Environmental Awareness Induction S4G29 Hazard
Inspections update induction material for
decommissioningdemolition Water Sampling Program stack
and ambient monitoring reporting on EMP and reporting to EPA
ffective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environmen tal Services
Site environmenta l performance monitoring decommissio ningdemolitio n
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS
Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during
decommissioningdemolition (eg HI_Vol and noise) IMS regular monitoring reports (eg weekly) Monitoring programmes and
regular reporting
ffective 3 Moderate E Unlikely Low 21
32 Environmen tal Services
Discharges into the marine environment decommissio ningdemolitio n (including use or removal of bulk chemicals)
Contaminated drains SPELS
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Chemical oil and fuel bunding oil separation stormwater
segregation monitoring of stormwater control systems
S310 (Ferrous sulphate) S311 (Solvents) S313 (Sodium
hypochlorite) S315 (Waste oil) Pump outs Decommissioning and
demolition within containment (minimise direct discharges to
marine environment) Emergency Response Plan IMS water monitoring programme site
inspections
ffective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
33 Environmen tal Services
Site operations decommissio ningdemolitio n
Noise Nuisance Public nuisance
complaints enforcement action
Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm
weekdays 8am-6pm weekends) boundary noise monitoring
ffective 3 Moderate E Unlikely Low 21
35 Environmen tal Services
Historical operations post decommissio ningdemolitio n
Discharges to soilgroundwat er landfills
Soilgroundwater contamination Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular
monitoring of known groundwater contamination
ffective 3 Moderate E Unlikely Low 21
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure
Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement Action Owner
Strategic or Approved Action
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
36 Environmen tal Services
Environment al incidents decommissio ningdemolitio n
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for
decommissioningdemolition activities) IMS Incident Management System
ffective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
37 Environmen tal Services
Environment al awareness decommissio ningdemolitio n
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for
decommissioningdemolition activities) training and induction records (for decommissioning
demolition induction)
ffective 4 Minor E Unlikely Low 23
38 Environmen tal Services
Environment al auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition requirements (eg demolition
approval conditions)
ffective 3 Moderate E Unlikely Low 21
39 Environmen tal Services
Community complaints decommissio ningdemolitio n
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to complainant
Complaints Register Internal media advisor Reporting to
management
ffective 3 Moderate E Unlikely Low 21
40 Environmen tal Services
Annual community consultation post operation
Community perception of organisation
Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Compliance calendar ffective 3 Moderate E Unlikely Low 21
41 Environmen tal Services
Potable water use decommissio ningdemolitio n
Excessive potable water use
Resource waste
Water overuse financial cost increased risk of
Gulf contamination Resource 3 Moderate E Unlikely Low 21
Re-location of services prior to demolition
ffective 4 Minor E Unlikely Low 23
bullbull -~J- alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 8 Playford Power Stations as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
1 General Office activities
Energy use Resource use Energy overuse Resource 5 Insignificant C Likely Low 22
waste disposal costs and recyclingsalvage revenue
E ective 5 Insignificant C Likely Low 22
2 General
General waste management
General waste Resource use
Excessive waste generation Resource 4 Minor C Likely Medium 17
Waste segregation JSP 320 Unloading and Handling of Rubbish
Skips monitor re contamination E ective 5 Insignificant E Unlikely Low 25
3
General equipment
decommission ing
Industrial waste management (ex-asbestos) (Waste oil considered separately)
Industrial waste [local] storage and transport to site storage area
Waste disposalrecycling soilgroundwater contamination
Improper waste disposal contamination of waste
destination enforcement action Waste 3 Moderate C Likely High 11
Waste Management at APS S38 Disposal Procedure for Aerosol cans
etc S311 Storage Handling and Disposal of solvents etc amp S315 Storage Handling and Disposal of waste oil JSP 320 Unloading and
Handling of Rubbish Skips monitor to ensure clear identification
samplinganalysis if required Maintain waste disposal records (eg WTCs or
WTFs)
E ective 3 Moderate E Unlikely Low 21
4 APS post
production
Asbestos management
Asbestos removal storage and disposal
Air quality
Airborne asbestos enforcement action
Human Health 2 Major D Possible High 12
S32 Asbestos Management System amp site procedures qualified contractor S37 Guidelines for the safe use of insulation of materials containing
SMFs Asbestos Register air monitoring waste disposal records
(WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
5 General
decommission ing
Industrial Waste water (contaminate d drains and ash)
Overflows Marine pollution
Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 2 Major E Unlikely Medium 18
JSP117 Drain cleaning amp JSP228 Ash Pit cleaning block drains within work
areas that discharge directly to marine environment if practicable Emergency
Response Plan Spill response IMS water monitoring programme disposal
records (WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
13 Heath Safety
amp Security
Implement contingency plan decommissio ningdemoliti on
environmental contingencies
Environmental harm
Nil Improper process in place Procedural 2 Major E Unlikely Medium 18
Emergency response plans (reviewed annually) review for decommissioning demolition activities (after project plan
has been developed) Crisis Management Plan Review response
equipment and training Support procedures eg Incident Management System Station Instruction S17 (Spill
Response) S316 (Spill Reporting) S18 (Fire Reporting) S4G29 Hazard
inspections amp JSP385 Use of emergency boat IMS IMS
E ective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm
Alinta Energy Earlymid 2016
14 Heath Safety
amp Security
Fire on site decommissio ningdemoliti on
Contaminated fire water discharge
Water quality
Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 2 Major E Unlikely Medium 18
Contaminated drains system Emergency Response Plan Crisis
Management Plan review options re containment of fire water eg within
ABC Lake in preference to discharge to ash pond storage Maintenance
routines Station Instruction S17 (Spill Response) IMS Plant monitoring
E ective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
15 Heath Safety
amp Security
Site security decommissio ningdemoliti on
vandalism Site amenity
Site damage injury to persons Security 3 Moderate D Possible Medium 16 Site security systems Emergency
Response Plan E ective 3 Moderate E Unlikely Low 21
16 Heath Safety
amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates records
E ective 4 Minor E Unlikely Low 23
18 Heath Safety
amp Security
Land management landscaping (post decommissio ningdemoliti on)
Maintaining amp improving landscaping
Improved site amenity
Poor visual amenity soil erosion dust
Environmental Final landforms and potential
landscaping plan E ective
19 Heath Safety
amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections E ective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
20 Heath Safety
amp Security
Waste recycling area(s) decommissio ningdemoliti on
Waste management
Resource use
Improper waste disposal contamination of waste
destination enforcement action Resource 3 Moderate E Unlikely Low 21
Waste segregation (to improve recycling re-use) Waste management
Process Site Map S311 Storage Handling and Disposal of solvents etc Determine if the area is adequate for
decommissioningdemolition Establish additional areas for staging of material prior to re-use on site andor disposal
Control runoff (via containment pond(s) Site inspections routine visits by external recycling contractor S37
Guidelines for the safe use of insulation materials containing SMF
waste recycling records Waste disposal records (WTCs and WTFs)
E ective 4 Minor E Unlikely Low 23
21 Heath Safety
amp Security
Disposal of mercury-containing lighting (eg fluoros) decommissio ning
Landfill Soilgroundwater contamination
Improper waste disposal contamination of waste
destination enforcement action Resource 4 Minor E Unlikely Low 23
Waste segregation managed by appropriate waste management company Waste management
Process Site Map S38 Disposal Procedure for Aerosol cans empty
fluid drums small batteries permalubes and mercury globes
Provide labelled containers (eg 200L drums) for storage prior to removal Waste disposal records (WTCs and
WTFs)
E ective 5 Insignificant E Unlikely Low 25
22 Heath Safety
amp Security
Road traffic decommissio ningdemoliti on
Dust emissions Air quality
Limit exceedence public nuisance complaints
enforcement action Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust suppressant if required) Hi
VolDustTrak dust monitoring on site boundary
E ective 4 Minor E Unlikely Low 23
23 Environmental
Services
Environment al Compliance decommissio ningdemoliti on
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting
environmental checklist for decommissioningdemolition
Surrender of EPA Licence Site Environmental Awareness Induction S4G29 Hazard Inspections update
induction material for decommissioningdemolition Water
Sampling Program stack and ambient monitoring reporting on EMP and
reporting to EPA
E ective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environmental
Services
Site environmenta l performance monitoring decommissio ningdemoliti on
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS
Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during decommissioningdemolition (eg HI_Vol and noise) IMS regular
monitoring reports (eg weekly) Monitoring programmes and regular
reporting
E ective 3 Moderate E Unlikely Low 21
32 Environmental
Services
Discharges into the marine environment decommissio ningdemoliti on (including use or removal of bulk chemicals)
Contaminated drains SPELS
Water quality
Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 2 Major E Unlikely Medium 18
Chemical oil and fuel bunding oil separation stormwater segregation
monitoring of stormwater control systems S310 (Ferrous sulphate) S311 (Solvents) S313 (Sodium
hypochlorite) S315 (Waste oil) Pump outs Decommissioning and demolition
within containment (minimise direct discharges to marine environment)
Emergency Response Plan IMS water monitoring programme site
inspections
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
33 Environmental
Services
Site operations decommissio ningdemoliti on
Noise Nuisance
Public nuisance complaints enforcement action
Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm weekdays 8am-
6pm weekends) boundary noise monitoring
E ective 3 Moderate E Unlikely Low 21
35 Environmental
Services
Historical operations post decommissio ningdemoliti on
Discharges to soilgroundwater landfills
Soilgroundwater contamination
Soilgroundwater contamination clean up actions enforcement
actions Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular monitoring of
known groundwater contamination E ective 3 Moderate E Unlikely Low 21
36 Environmental
Services
Environment al incidents decommissio ningdemoliti on
Various Environmental harm
Nil Improper process in place Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for decommissioningdemolition activities)
IMS Incident Management System E ective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
37 Environmental
Services
Environment al awareness decommissio ningdemoliti on
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for
decommissioningdemolition activities) training and induction records (for
decommissioning demolition induction)
E ective 4 Minor E Unlikely Low 23
38 Environmental
Services
Environment al auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition
requirements (eg demolition approval conditions)
E ective 3 Moderate E Unlikely Low 21
39 Environmental
Services
Community complaints decommissio ningdemoliti on
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to complainant Complaints Register
Internal media advisor Reporting to management
E ective 3 Moderate E Unlikely Low 21
40 Environmental
Services
Annual community consultation post operation
Community perception of organisation
Non compliance
Nil Improper process in place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar E ective 3 Moderate E Unlikely Low 21
41 Environmental
Services
Potable water use decommissio ningdemoliti on
Excessive potable water use
Resource waste
Water overuse financial cost increased risk of Gulf
contamination Resource 3 Moderate E Unlikely Low 21
Re-location of services prior to demolition
E ective 4 Minor E Unlikely Low 23
44
Post production
coal stockpile area
Runoff from coal stockpile area (post operation)
Water quality (runoff)
Water quality Soilgroundwater contamination clean up actions enforcement
actions Environmental 3 Moderate C Likely High 11
Collection no direct marine discharges water monitoring programme
E ective 4 Minor E Unlikely Low 23
45
Post production
coal stockpile area
Post operation coal stockpile area
Fire (spontaneous combustion)
Air quality Fire smokeparticulate
emissions public amp personnel exposure
Fire 3 Moderate E Unlikely Low 21
Develop strategy to reduce risks of spon com In post operational coal stockpile area Monitoring by Alinta
staff IMS
E ective 4 Minor E Unlikely Low 23
46
Post production
coal conveyors
Coal conveyors
Coal dust (conveyorstransfer s)
Air quality Personnel exposure limit
exceedence public nuisance complaints enforcement action
Environmental 3 Moderate C Likely High 11 wash down of built up dust E ective 5 Insignificant E Unlikely Low 25
47 Post
production coal bins
Coal bin storage
Coal dust Air quality Personnel exposure limit
exceedence public nuisance complaints enforcement action
Environmental 3 Moderate D Possible Medium 16 Wash down of built up dust ambient
monitoring maintenance records E ective 3 Moderate E Unlikely Low 21
48
Fireexplosion Air quality
Coal dust explosion Fire 2 Major D Possible High 12
Review risk assessments for decommissioningdemolition
Emergency Response Plan IMS E ective 3 Moderate E Unlikely Low 21
49 APS post production
Coal plant washdown
Marine discharge Water quality Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 4 Minor D Possible Low 20
Containment of washwater JSP 107 Bunker Washing water monitoring
programme E ective 4 Minor E Unlikely Low 23
50 APS post production
Decommissio ningdemoliti on
Oil spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate E Unlikely Low 21
Contaminated drain system S17 Oil Spill Procedure review and enhance
containment options Emergency Response Plan IMS Maintenance
records
E ective 4 Minor E Unlikely Low 23
51 APS post production
Decommissio ningdemoliti on
Fuel oil spillage (eg gun malfunction)
Water quality Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate D Possible Medium 16
Operating controls S17 Oil Spill procedure contaminated drains Emergency Response Plan IMS
E ective 3 Moderate E Unlikely Low 21
52 APS post
production
Decommissio ningdemoliti on
Seawater flow Ecological impact (eg fauna loss)
ReductionIncrease in number amp abundance of local marine
species Environmental 3 Moderate E Unlikely Low 21
Review options for cooling water channels (eg breach wall)
E ective 3 Moderate E Unlikely Low 21
53 APS post
production
Decommissio ningdemoliti on
Contamination of condenser cooling water
Ecological impact
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major E Unlikely Medium 18
Review options for condensers (post production) visual
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
54 APS post
production
Boiler water drainage
Treated water discharge
Water quality Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 4 Minor D Possible Low 20
drainage into Ash pit Operating controls ambient water monitoring
programme E ective 4 Minor E Unlikely Low 23
59 APS post
production
Fly ashbottom ash handling systems decommissio ningdemoliti on
Spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major E Unlikely
Flush ash systems to ash storage area water monitoring programme
E ective 4 Minor E Unlikely Low 23
60 APS post
production
Fly ash re-use storage and handling area
Spillage Water quality Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 4 Minor D Possible
Empty and washdown plant Discharge to containment area
E ective 4 Minor E Unlikely Low 23
61 APS post
production
Decommissio ningdemoliti on
Contamination of flow to ash storage pond (eg oil)
Water quality
Spill entering ash disposal system discharge to Gulf
waters enforcement action Environmental 3 Moderate D Possible
Contaminated drains oil containment oil handling ash pond controls Ash
storage dam inspections Emergency Response Plan IMS inspection
records
E ective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
64 APS post
production
Oil removal Oil spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate C Likely High 11
Station Instructions S17 Oil Spill procedure S315 Storage Handling and Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil treatment plant Contaminated drain system Emergency Response Plan IMS water monitoring programme
E ective 4 Minor E Unlikely Low 23
65 APS post
production
Waste oil storage
Oil spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate C Likely High 11
Bunded storage S17 Oil Spill procedure S315 Storage Handling and Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil
treatment plant Emergency Response Plan IMS water monitoring
programme
E ective 3 Moderate E Unlikely Low 21
66 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up actions enforcement
actions Environmental 2 Major E Unlikely Medium 18
Bunded storage Emergency Response Plan Spill response IMS
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
67 APS post
production
Fire Air quality
Fire personnel exposure Fire 3 Moderate E Unlikely Low 21
Storage controls (minimise ignition sources) Emergency Response Plan
Crisis Management Plan IMS E ective 3 Moderate E Unlikely Low 21
68 APS post
production
Discharges into the marine environment
Contaminated drains SPELS
Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major D Possible High 12
Chemical oil and fuel bunding oil separation maintenance of SPEL
tanks stormwater segregation review of routine to inspect SPEL tanks
Emergency Response Plan IMS water monitoring programme site
inspections SPEL cleanout routines
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
69 APS post
production
Oil -filled electrical equipment decommissio ning and removal
Leakage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major E Unlikely Medium 18
Bunding S17 Oil Spill procedure JSP271 NPS Step-up Unit transformer amp line isolator
maintenance Emergency Response Plan Crisis Management Plan IMS monitoring of oil properties (eg PCB
content)
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
70 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up actions enforcement
actions Environmental 2 Major E Unlikely Medium 18
Containment of oil-filled equipment Emergency Response Plan
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
71 APS post
production
Fire explosion Air quality
Fire personnel exposure Fire 2 Major E Unlikely Medium 18 Permits containment E ective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
79 APS post
production
Demolition general
Lead emissions (from lead-based paints)
Personnel exposure limit exceedence public nuisance
complaints enforcement action Environmental 3 Moderate E Unlikely Low 21
lead paint testing dust control processes Maintenance routines lead
in paint testing (as required) and recorded
E ective 4 Minor E Unlikely Low 23
80 APS post
production
Refrigeration air conditioning servicing decommissio ning (as required)
Release of ozone depleting substances
Depletion of Ozone layer
Environmental harm regulatory enforcement
Environmental 3 Moderate D Possible Medium 16
ARC licensed operators ozone-depleting gas reclaim for
decommissioned equipment Audits based on ARC requirements JSP372 Air Conditioner Maintenance Records
of ozone-depleting substances reclaim etc
E ective 3 Moderate E Unlikely Low 21
81 APS post
production
Sewerage system relocation of services (caused by decommissio ning and demolition)
Sewage overflow Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 4 Minor D Possible Low 20
Response to sewer chokes JSP028 Sewage Pit pump and control repairs
Emergency Response Plan IMS E ective 4 Minor E Unlikely Low 23
82 APS post
production
PPS Seawall collapserem oval
Loss of material into marine environment
Water Quality Contaminated material entering
the Gulf damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18 Site inspections E ective 2 Major E Unlikely Medium 18
83 APS post
production
Earthworks Project-specific erosion and sedimentation
Project-specific marine contamination Soilsedimentash entering onsite
drains system discharge to Gulf waters enforcement action
Environmental
Project-specific EMP (by contractor(s)) APS Change Request (Form C1-1) Change Management
Procedure HSRP 330 erosion controls Project Management Manual Project-
specific water quality
E ective
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
96 Playford
Power Station demolition
Septic systems decommissio ning
Spillage Water quality HAZMAT scenario water soil amp groundwater contamination
clean up actions enforcement actions
Environmental 4 Minor D Possible Low 20 Arrange pump-outs E ective 4 Minor E Unlikely Low 23
97 Playford
Power Station demolition
Demolition stacks
Contaminated brick work
Incorrect disposal Improper waste disposal contamination of waste
destination enforcement action Waste 2 Major E Unlikely Medium 18
Containment of waste material Samplinganalysis to determine
disposal options Disposal records (eg WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
Appendix B
Augusta Power Stations
NPS Facility
Make Safe Manual
Revision Date Description Prepared by Reviewed by Approved by
0 29116 Initial draft
1 23216 First revision PMAPS FM
2 29216 Second revision ndash removed FM from activities
PMAPS FM
3 51016 Corrections
Distribution List
TBA
Decommissioning Manual ndash NPS
Index
1 Introduction 4
2 Closure Philosophy 4
3 Closure Strategy 4
4 Responsibilities 4
5 Titles 4
6 BoilerGenerator Unit 5
61 Turbine 5
611 Turbine Oil System 5
612 Condenser Condensate side 5
613 Condenser Seawater side 6
614 Turbine Valves 7
62 Generator 7
621 Hydrogen System 7
63 CW System 8
631 Chambers 8
632 CW pumps 9
633 CW Screens 9
634 CW Ducts 10
64 Feedwater System 10
641 LP Feedwater 10
642 Boiler feed Pumps 11
643 HP Feedwater 11
641 Feed Make-up 12
65 Boiler 12
651 Pressure parts 12
652 Furnace and Gas path 13
66 Draught Plant 14
67 Valves 15
68 Main Pipework 15
69 ACW System 16
691 ACW Seawater Side 16
692 ACW Fresh water Side 16
610 Coal System 17
6101 Train Unloading 17
6102 Bins and Bunkers 17
6103 Conveyors 18
6104 Coal Feeders 18
6105 Mills 19
611 Fuel oil system 19
6111 Fuel oil pumps 19
6112 Fuel Oil Storage 20
612 Ash System 21
6121 Sluice Pumps 21
6122 Hoppers 21
6123 Precips 22
6124 Deasher 22
Appendix B NPS Make Safe Manual Correcteddocx - 2 -
6125 Ash Pit 23
7 Electrical Systems 23
71 Control Systems 23
72 Instrumentation 24
73 DC System 24
731 220 V System 24
732 110 V System 25
733 24 V System 25
74 HV 26
741 High Voltage Disconnections 26
75 Switchboards 26
751 66 kv 26
76 Transformers 27
77 Diesel Generators 27
8 Station Auxilliaries 28
81 Aux blr 28
82 Compressed Air System 28
83 Water treatment plant 29
84 Fire protection System 29
85 Cranes and Lifts 30
86 TW and Drains system 31
87 Stack 31
9 Services 32
91 Workshops 32
92 Heavy machine and Mobile Plant 33
93 Admin 34
94 Document information and management 34
95 Security 35
10 Infrastructure of Interest 35
101 CW System 36
102 Workshops 36
103 Water storage tanks 37
104 PPS Diesel Fire pumps 37
11 Appendix 37
111 Legal and other Requirements 37
1111 Legislation and Strategies 37
1112 Alinta Policies 38
112 References 39
113 Project Plan 40
114 NPS Administration 40
1141 NPS Isolations 40
1142 NPS Closure Audit 40
115 NPS Residual Risks 41
Appendix B NPS Make Safe Manual Correcteddocx - 3 -
1 Introduction
The Northern Power Station has been operating in a flexible generating profile and has been able to respond to Market opportunities over the past few years Since the application of Scenario 1 to NPS generation profiles and significant increase in Wind and Solar generation in the SA market it has become increasingly difficult to maintain a commercial return on APS Electricity Production This has resulted in a decision by the Alinta Board to close the Power Station in Q2 of 2016
2 Closure Philosophy
The closures of the NPS site are outlined in the Lease Agreement and require Alinta to rehabilitate the APS site to its pre-developed condition The Closure Plan seeks to facilitate the removal of the Power Station infrastructure to manage all of the Asset removal with no impact on the surrounding environsrsquo meet all condition of the Lease Agreement and Legislative requirements
Alinta acknowledges that the demolition and site rehabilitation works are deemed to be lsquoHigh Riskrsquo work activities and will ensure appropriate management of this work in accordance with WHS Act 2012 and Regulations
Alinta will ensure the key principle of lsquoZero Harmrsquo will be embedded in all activities associated with the Closure Disposal and Remediation of the NPS site in accordance with the Lease Agreement
3 Closure Strategy
The focus of this manual is to outline activities to be carried out to make the plant safe for disposaldemolition by third parties
Key objectives are to remove all foreseeable hazards to the environment and salvagedemolition personnel during the remediation programme
4 Responsibilities
The `Plant managerrsquo will seek approval of Closure plans and allocate resources to implement the effective management and Make Safe activities of the NPS site prior to handover to the Facilities Manager and contractors for demolitionrehabilitation
The lsquoFacilities Managerrsquo and the Project team will communicate the sequence and timing of activities in accordance with this plan to internal stakeholders and external parties and contractors as required The FM will also lead a small team of experts to oversee the demolition and remediation activities
5 Titles
Facilities Manager - FM Operations amp Maintenance Manager ndash OMM Production Manager Augusta - PMA Scientific Services an Chemical Superintendent - SSCS
Appendix B NPS Make Safe Manual Correcteddocx - 4 -
6 BoilerGenerator Unit
61 Turbine
611 Turbine Oil System
Asset Management Strategy
Remove hazards present to the environment and personnel from the Lube oil systems during decommissioning
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommission operation
Item Plant Description Proposed Actions Responsibility
1 Lube Oil System Drain all lube oil and seal oil to main tank OMM
2 Lube Oil Tank
Monitor lube oil tank for potential leaks until handover to FM and contactors for final decommissioing OMM
3 Oil pumps Isolate electrical supplies to Oil Pumps OMM
4 Seal oil tank Drain the Seal Oil system OMM
5 Seal oil pumps Isolate electrical supplies to Seal Oil Pumps OMM
612 Condenser Condensate side
Asset Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 5 -
Eliminate the possibility of toxic gases andor pressure build up in the system during decommissioning
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Item Plant Description Proposed Actions Responsibility
Condenser and CEPrsquos
Open all drain vvrsquos and open up condenser doors OMMOMM
CEP MotorPump Drain motor and Pump oil OMM
613 Condenser Seawater side
Asset Management Strategy Minimise build-up of toxic gases from decomposed marine growth in the Condenser
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Item Plant Description Proposed Actions Responsibility
1 Condenser Seawater side
Open all condenser drain valves once the condenser is isolated from the CW chamber OMM
Gas test for toxic gases OMM
Appendix B NPS Make Safe Manual Correcteddocx - 6 -
614 Turbine Valves
Asset Management Strategy Minimise hazards to the environment and personnel in the Valve Control oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
ITEM Plant Description Proposed Actions Responsibility
1 Major turbine vvrsquos Isolate electrical supplies to Valves OMM
11 Drain control oil actuators and pipework OMM
2 HP and LP By-pass vvrsquos
Decommission and drain Control stations and accumulators OMM
62 Generator
521 Generator Rotor
Asset Management Strategy Removing hazards to the environment and personnel from the Generators
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Item Plant Description Proposed Actions Responsibility
Generator Casing
Isolate hydrogen from generator case and purge casing OMM
621 Hydrogen System
Asset Management Strategy Shutdown Hydrogen system to prevent any risk of hydrogen fuelled fire or explosion
Appendix B NPS Make Safe Manual Correcteddocx - 7 -
Controls The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 Hydrogen System
Shut down isolate and purge Hydrogen system OMMSSCS
2 Hydrogen System
Remove all Hydrogen supplies from site once second Unit is OOS OMM
63 CW System
631 Chambers
Asset Management Strategy Isolate the inletoutlet channel water from the Condenser basements
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
CW pumps
Fit blanks to the CW pump discharge pipe to isolate the chamber from the Condenser basement
OMM
CW pump Drain Oil from pump OMM
Taprogge recirc pumps Drain oil from pumps OMM
Dosing pumps (hypo chlorFE chlor Drain oil from pumps OMM
Chlorine Plant Shut down and flush chemicals from lines SSCS
Appendix B NPS Make Safe Manual Correcteddocx - 8 -
Chlorine plant pipework Drain and dry store SSCS
Electrolysers Drain and dry store SSCS
Chlorine storage tank Drain and dry store SSCS
632 CW pumps
Asset Management Strategy Remove environmental contaminants from CW pumps
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
5321
CW pumps Drain oil from CW pp bearings OMM
CW Pump Motors Isolate motor heaters OMM
Empty chamber remove CW pumps and blank off CW pump discharge pipe OMM
633 CW Screens
Asset Management Strategy Remove environmental contaminants from CW screens
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Appendix B NPS Make Safe Manual Correcteddocx - 9 -
Plant Description Proposed Actions Responsibility
5331
CW Screens Drain oil from CW screen gearboxes not required by third party OMM
634 CW Ducts
Asset Management Strategy Minimise build-up of toxic gases from decomposed marine growth in the Condenser
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommission operation
Plant Description Proposed Actions Responsibility
5331
CW Ducts Isolate from CW chamber and pump dry OMM
64 Feedwater System
641 LP Feedwater
Asset Management Strategy Eliminate the possibility of gases andor pressure build-up in the system
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
LP feedheaters Open drains and doors OMM
GS Condenser Open drains and doors OMM
Appendix B NPS Make Safe Manual Correcteddocx - 10 -
LP Ejector Open drains and doors OMM
Deaerator and DAFT Open drains and doors OMM
DA off load circ pump Drain oil from pump OMM
Ammonia dosing pump Drain oil from pump OMM
642 Boiler feed Pumps
Asset Management Strategy Remove any hazards to the environment or personnel in the Boiler Feed pumps
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
1
Boiler feed pp amp DAFT header Isolate and drain system OMM
Drain oil from BFPrsquos and GTDrsquos OMM
643 HP Feedwater
Asset Management Strategy Minimise possibility of gases andor pressure build up in the system
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Appendix B NPS Make Safe Manual Correcteddocx - 11 -
Plant Description Proposed Actions Responsibility
HP6 amp 7 Drain HP Heater shell and store dry OMM
Drain Feedwater side and store dry OMM
641 Feed Make-up
Asset Management Strategy
Drain systems to minimise internal corrosion
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 Feedwater make up heater Drain and store dry OMM
2 Hot Condesate Storage tank Drain and store dry OMM
3 RFW Tanks Drain and store dry OMM
65 Boiler
651 Pressure parts
Asset Management Strategy Minimise possibility of gases andor pressure build up in the system
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Appendix B NPS Make Safe Manual Correcteddocx - 12 -
Plant Description Proposed Actions Responsibility
Boiler Tubes amp Superheaters
Boilers to be removed from service amp drained hot OMM
Open up all drains and vents OMM
Valves - general Drain oil from actuators OMM
Valves - Blr safety vvrsquos Relieve spring tension OMM
Blowdown vessels Ensure drain vvs are open OMM
652 Furnace and Gas path
Asset Management Strategy
To ensure furnace is clear of ashslag deposits to minimise the potential for corrosion and environmental contamination during the Care period
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1
Furnace super htr area and penthouse
Gas path to be washed including penthouse All dead spaces including inside nose and either side of boiler throat all ash hoppers to be cleaned amp left dry OMM
2 Water walls Washed out after shut down and dry store OMM
3 Economiser Washed out after shut down and dry store OMM
Appendix B NPS Make Safe Manual Correcteddocx - 13 -
66 Draught Plant
Asset Management Strategy Minimise any residual hazards remaining in the Draught Plant
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
Air heaters WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
ID fans WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
PA fans WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
SA fan WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
GR fans WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
Appendix B NPS Make Safe Manual Correcteddocx - 14 -
ID PA SA GR Motors Disconnect motor heater power supplies OMM
DuctsDampers WashedVaccuumed out OMM
Drain oil from damperactuator gearboxes OMM
67 Valves
Asset Management Strategy Minimise any residual hazards or kinetic energy remaining in the valves on site
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Selected safety valves
Relieve all spring tensions based on individual risk assesments OMM
68 Main Pipework
Asset Management Strategy Minimise any residual hazards remaining in the Pipework
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Main pipework from Boiler to Turbine Open all vents and drains OMM
Appendix B NPS Make Safe Manual Correcteddocx - 15 -
69 ACW System
691 ACW Seawater Side
Asset Management Strategy Minimise build-up of toxic gases from decomposing marine growth in the ACW pipework and heat exchangers and remove environmental hazards
Controls The following controls have been identified to eliminate the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Heat exchangers Isolate and drain heaters of seawater OMM
ACW pumps Drain oil from the bearings OMM
ACW system Open all drains and vents OMM
Test for toxic gases OMMSSCS
692 ACW Fresh water Side
Asset Management Strategy Remove environmental hazards from the ACW system
Controls The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Coolers Drain all ACW coolers OMM
Pumps Drain oil from pumps OMM
Appendix B NPS Make Safe Manual Correcteddocx - 16 -
610 Coal System
6101 Train Unloading
Asset Management Strategy To minimise environmental hazards
Controls
The following controls have been identified to minimise the hazards to the environment
Plant Description Proposed Actions Responsibility
Train unloader WashVaccuum all hoppers feeders and conveyor systems OMM
Unloader walls
Monitor water level in Unloader pitValve in wall to be opened periodically to relieve water pressure on walls Note Needs to be condition included in transfer agreement OMM
Unloader sump
Unloader sump pump will need to be maintained Note Once supply to Unloader is decommissioned sump pump will not operate OMM
6102 Bins and Bunkers
Asset Management Strategy To minimise environmental hazards
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Bins Emptied and washed out OMM
Ploughs Park ploughs in bypass position and wash down OMM
Appendix B NPS Make Safe Manual Correcteddocx - 17 -
Drain gearbox oils OMM
Trippers Wash down trippers OMM
Drain gearbox oils OMM
Bunkers Empty and Wash out bunkers OMM
6103 Conveyors
Asset Management Strategy Remove environmental kinetic energy and fire hazards from the coal system
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Conveyors Shutdown Coal conveyor systems and wash down OMM
Conveyors Drain oil from gearboxes OMM
Release belt tensioners and lower weights to the ground and secure OMM
Coal line Fire System
Maintain fire detection and deluge systems until Make safe is complete in accordance with OEM OMM
Coal line Fire System
Maintain fire detection and deluge systems in accordance with OEM OMM
6104 Coal Feeders
Asset Management Strategy To minimise environmental hazards
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 18 -
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Mill feeders Emptied out on shutdown and washed out for dry store OMM
Mill feeders Drain gearbox oils OMM
6105 Mills
Asset Management Strategy Remove environmental contaminants and kinetic energy from the coal Mills
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Mills Empty out Mills and wash out for dry store OMM
Mills
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
Release mill roller spring tension OMM
611 Fuel oil system
6111 Fuel oil pumps
Asset Management Strategy Remove environmental contaminants from Fuel oil system
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Appendix B NPS Make Safe Manual Correcteddocx - 19 -
Plant Description Proposed Actions Responsibility
Oil guns
Remove guns and store in Mills Workshop with supply lines capped and nozzles plugged OMM
FO heaters Drain fuel oil heaters OMM
FO pipework Drain fuel oil pipework OMM
FO transfer pps Drain bearing oil OMM
6112 Fuel Oil Storage
Asset Management Strategy Remove environmental contaminants from Fuel oil system
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
FO storage Run stocks of FO to minimum level PMA
Monitor FO storage tanks and distribution system for potential leaks prior to handover to FM for contactor final decommissioning OMM
FO Service Tank Run stocks of FO to minimum level PMA
Clean storage tanks of residual oil to eliminate potential leakrsquos to the environment during storage and de-commissioning Inspect internally prior to removal FM
Appendix B NPS Make Safe Manual Correcteddocx - 20 -
612 Ash System
6121 Sluice Pumps
Asset Management Strategy
Drain systems to minimise internal corrosion and marine growth
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 HP amp LP Sluice pump pipework Drain all pipework and dry store OMM
2 LP Sluice Pumps Isolate pumps OMM
3 HP Sluice pumps Drain pump bodies and dry store OMM
6122 Hoppers
Asset Management Strategy
Reduce the risk of ash hang ups and internal hopper corrosion during an Care period
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 Third pass Wash out hoppers after shutdown and dry store Remove E vvrsquos OMM
2 Primary Air Heater Hoppers
Wash out hoppers after shutdown and dry store Remove E vvrsquos OMM
3 Secondary Air Heater Hoppers
Wash out hoppers after shutdown and dry store Remove e vvrsquos OMM
Appendix B NPS Make Safe Manual Correcteddocx - 21 -
4 Precip Hoppers
Remove E Valves Wash down Precip and Hoppers dry out with hopper heater for 24 hours and isolate heaters and dry store OMM
5 Ash Transfer Plant
Empty and wash out vessels dry store Isolate all Electrical and Air Supplies to Ash Transfer plant OMM
6 Ash Silo Empty and wash out vessels dry store Isolate all electrical supplies to Silo OMM
6123 Precips
Asset Management Strategy Remove environmental contaminants from Precipitators
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Internals Full wash of Precip internals Open doors and allow to dry OMM
Rappers Drain oil from rapper gearboxes OMM
6124 Deasher
Asset Management Strategy Remove environmental contaminants from Deashers
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
De-asher
Remove the de-asher to the maintenance position and wash out for dry store Barricade bottom of boiler to restrict access while de-asher removed OMM
Appendix B NPS Make Safe Manual Correcteddocx - 22 -
7
Crusher
Wash out ash crusher
OMM
De-asher Drain oil from hydraulic units OMM
Crusher Drain oil from crusher gearbox OMM
6125 Ash Pit
Asset Management Strategy
Maintain storm water control for the duration of decommissioning
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Ash pit
Install a suitably sized submersible pump connected to one of the Ash Pond discharge pipes to cater for rain events prior to handover to FM and contractors for final decommissioning
OMM
Electrical Systems
71 Control Systems
Asset Management Strategy Minimise the risk of residual power sources associated with the control systems
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Appendix B NPS Make Safe Manual Correcteddocx - 23 -
Plant Description Proposed Actions Responsibility
FCS Battery systems Remove low voltage DC battery packs OMM
Fire Safety System Remove DC inverter OMM
72 Instrumentation
Asset Management Strategy Eliminate the risk of electric shock from residual power sources
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Instruments o2 press temp hydrogen analysers cameras oil flows water quality level
Remove tag with KKS amp Physical location and store in Instrument Workshop
OMM
AC Supply to FCS stations
Isolate AC supply to FCS stations
OMM
Inverter Supply Isolate and decommission Inverter supplies to Control System
OMM
73 DC System
731 220 V System
Asset Management Strategy Minimise the risk of DC Arc flash and LeadAcid hazards
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 24 -
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
220V Batt Charger and bank
Decommission battery charger and remove batteries Wash down battery stands and floors to remove residual sulphuric hazards OMM
732 110 V System
Asset Management Strategy Minimise the risk of DC Arc flash andndash LeadAcid hazards
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
110V Batt Charger and bank
Monitor 220v amp 110v battery systems until handover to FM and contactors for final decommissioning To be included in contractor agreement (Decommission battery charger and remove batteries once 275kV lines are decommissioned (line protection) Wash down battery stands and floors to remove residual sulphuric hazards) OMM
733 24 V System
Asset Management Strategy Minimise the risk of DC Arc flash andndash LeadAcid hazards
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
24V Batt charger and bank
Decommission battery charger and remove batteries Wash down battery stands and floors to
OMM
Appendix B NPS Make Safe Manual Correcteddocx - 25 -
I I
remove residual sulphuric hazards
74 HV
741 High Voltage Disconnections
Asset Management Strategy Apply a perimeter isolation to the 275132kV switchyards to Eliminate risk of Electric Shock by disconnecting all HV supplies at major terminal points in switchyards Eliminate the possibility of a transformer oil spill to the surrounding environment
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
275kV supply
Maintain protection systems for 275kV system until handover to FM to arrange disconnection agreement with Electrenet OMM
132kV Disconnect from House transformer OMM
75 Switchboards
751 66 kv
Asset Management Strategy To remove any kinetic energy stored in the 66kV switchgear
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Appendix B NPS Make Safe Manual Correcteddocx - 26 -
66 Breakers Rack out breakers and discharge spring tension OMM
76 Transformers
Asset Management Strategy
Eliminate the possibility of a transformer oil spill to the surrounding environment
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
275kV Transformer
Isolate 275kV at connection point at switchyard
OMM
Monitor all transformers for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Drain all transformer oil and box up transformer case )
OMM
132kV Transformer (House)
Monitor all transformers for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Drain all transformer oil and box up transformer case )
OMM
77 Diesel Generators
Asset Management Strategy Remove the Diesel Generators from service
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Appendix B NPS Make Safe Manual Correcteddocx - 27 -
8
Plant Description Proposed Actions Responsibility
Diesel Generators
Monitor Diesel Gensets for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Remove Gensets from service) OMM
Station Auxilliaries
81 Aux blr
Asset Management Strategy Remove any remaining residual contaminants
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Aux Boiler Fuel Oil Tank
Monitor Aux Boiler FO system for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Drain Aux Boiler FO tank) OMM
82 Compressed Air System
Asset Management Strategy Shut down assets and depressurise the system and remove environmental contaminants
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 28 -
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Air compressors
Monitor Compressors for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Decommission compressors and separators) FM
83 Water treatment plant
Asset Management Strategy Remove any remaining residual contaminants Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Reverse Osmosis Plant
Decommission and store in accordance with OEM recommendation
OMMSSCS
Water treatment Plant
Drain all vessels remove all resins chemical and dispose of Dry store all tanks and vessels
Remove all Resin and put to land fill OMMSSCS
84 Fire protection System
Asset Management Strategy
Decommission fire protection system and remove environmental contaminants
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Appendix B NPS Make Safe Manual Correcteddocx - 29 -
I I
Plant Description Proposed Actions Responsibility
Fire feedwater Isolate town water to fire pumps and drain all mainfolds OMM
Fire Deluge System
Drain fire system at fire pump discharge and at each deluge system OMM
Diesel Fire Pump Decommission drain fuel engine oil and coolant OMM
Electric fire pumps Isolate and decommission OMM
Fire detection system
Isolate and decommission fire detection system including the removal of DCP lead acid batteries OMM
Fire Halon systems
Decommission and remove Halon cyclinders from control room under floor system OMM
Vesda detection system Decommission and remove backup batteries OMM
Portable fire extinguishers
Monitormaintain all fire extinguishers until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Remove all fire extinguishers for site and dispose of) OMM
85 Cranes and Lifts
Asset Management Strategy Decommission and de-register lifts and cranes in preparation for demolition
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Appendix B NPS Make Safe Manual Correcteddocx - 30 -
All Lifts Maintain operation of Turbine Hall and Boiler lifts until handover to FM and contactors for decommissioning
To be included in contractor agreement All lifts to be decommissioned OMM
NPS Cranes Monitor all cranes and hoists for potential oil leaks prior to handover to FM and contractors for decommissioning To be included in contractor agreement (Drain oil from all cranes and hoist gearboxes and decommision) OMM
86 TW and Drains system
Asset Management Strategy
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Contaminated Drains Pit and associated pumps
Maintain in normal operation This ensures any run off from rain event do not carry any pollutants into the surrounding environment without being removed in the contaminated drains pits until handover to FM and contractors for decommissioning Note Once supply to CW switch room is decommissioned the oil skimmer in the sump will no longer operate To be included in contractor agreement (Decommission the contaminated drains system and settling pond) OMM
Condenser Sumps
Installation of temporary submersibles needed to maintain sumps dry if required Note Once Turbine 415V boards are decommissioned sump pumps will no longer operate OMM
87 Stack
Asset Management Strategy
Ensure we meet aviation standards of Stack lighting after Closure
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 31 -
9
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Stack
Provide alternative lighting of the stack to comply with CASA minimum standard for Aviation requirements OMM
Services
91 Workshops
Asset Management Strategy Minimise any hazards that may impact on demolition crews and chemicalgas hazards to surrounding environs
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Tubemakers Storage shed
Inventory and remove all plant tools and equipment for disposal
Salvage all materials held in store
Review and approve contractor demolition plan including sewage system OMM
Appendix B NPS Make Safe Manual Correcteddocx - 32 -
decommissioning and site rehabilitation
Garage Workshop
Decommission all Electrical supplies town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
OMM
Mitsubishi Spares Shed
Decommission all Electrical supplies town water systems to store
Remove all stock and spares for disposal
OMM
Cylinder Store Compound
Remove all stock of gas cylinders and return to suppliers
OMM
Coal Line and Electrical Workshop
Maintain Electrical supplies town water and black water systems to workshop for third party transfer
Inventory and remove all plant tools and equipment for disposal
OMM
Mills Workshop
Decommission all Electrical supplies town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
OMM
Plant Workshop
Decommission all Electrical supplies town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
OMM
Plant Tools and equipment disposal
Commission an auction house to promote and conduct a plant tools and equipment disposal on site on behalf of Alinta OMM
Residual plant tools and equipment
Non disposlable item to be scrapped and removed from site by merchant OMM
92 Heavy machine and Mobile Plant
Appendix B NPS Make Safe Manual Correcteddocx - 33 -
Asset Management Strategy Minimise any hazards that may impact on demolition crews
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Heavy Plant
Inventory heavy plant items and place on consignment with Heavy Machinery reseller This to be done in parallel with Dozing operations on the residual coal stocks held on APS stockpile OMM
Mobile Plant Inventory mobile plant items and place on consignment with Heavy Machinery reseller OMM
Light Vehicle
Develop a light vehicle return strategy as vehicle leases expire sufficient vehicle to conduct Care to Closure activities return all vehicles at the commencement of demolition phase OMM
93 Admin
Asset Management Strategy Minimise any hazards that may impact on demolition crews
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
PA system throughout the workshop offices station and general site
Required for site communications emergency notices and evacuations by skeleton staff
OMM
94 Document information and management
Asset Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 34 -
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Documents Determine what data is required to be stored OMM
Determine where the data will be stored OMM
Historical interest data
Determine who would be interested in taking this PMAPS
Pressure Vessel registration
Advise Worksafe SA when plant is decommissioned OMM
95 Security
Asset Management Strategy To continue site security until such time as Third parties take control
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Security Maintain Security contract OMM
10 Infrastructure of Interest
The following infrastructure and plant has been identified as possibly of Interest to Third Party users after Closure
Appendix B NPS Make Safe Manual Correcteddocx - 35 -
101 CW System
Asset Management Strategy To identify the system requirements of the CW plant for continued use by third party
Assumptions Third party will own operate and maintain CW infrastructure including power supplies and EPA
license requirements
Plant Description Consequential Plant Responsibility
1
Sluice ACW and Sundrop pumps
Power supply ndash 66kV415v transformer will be decommissioned as part of the demolition process Alternative power supply will need to be established to continue operation
OMMThird Party
2
Contaminated drains system
To ensure any contaminent spillage is prevented from entering the surrounding environs The transfer pump pit will remain connected to the 11kV ring feed however the transfer pumps at the Contaminated drains settling pond is currently fed from the town water switch room which will be decommissioned Alternative power supply will need to be established at the settling pond for this system to remain operational
OMMThird Party
102 Workshops
Asset Management Strategy To identify the system requirements of the Workshops at NPS for continued use by third
party
Assumptions Third party will own operate and maintain Workshop buildings including power supplies Town
water and Black water system
Plant Description Consequential Plant Responsibility
Workshops
Town water reticulation will need to be dispersed between third parties with separation of metering points Black water system backbone will need to be retained Existing Power supplies may be disconnected during demolition 11kV 415v pad mount will
OMMThird Party
Appendix B NPS Make Safe Manual Correcteddocx - 36 -
need to be installed at the WTP to supply the Mech workshop Existing 11kV 415v pad mount power supply to Electrical workshop should remain if required
103 Water storage tanks
Asset Management Strategy To identify the functionality requirements of the Town Water storage tanks for continued use
by third party
Assumptions Third party will own operate and maintain Town Water storage tanks including water connection
and agreement with SA Water
Plant Description Consequential Plant Responsibility
Town water storage tanks
Town water supply from SA Water Alternative power supply for TW switchroom and associated pumps will be required to keep this plant operational
OMMThird Party
104 PPS Diesel Fire pumps
Asset Management Strategy To identify the functionality requirements of the PPS Fire diesel pumps for continued use by
third party
Assumptions Third party will own operate and maintain PPS Fire Diesel pumps including power supplies and
EPA license requirements
Plant Description Consequential Plant Responsibility
PPS Fire Diesel pumps
Diesel pumps are a standalone system and can be plumbed to suit delivery where required
OMMThird Party
11 Appendix
111 Legal and other Requirements
1111 Legislation and Strategies
Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 37 -
Comply with all Legislation and Lease agreements during the Closureremediation process
Controls
Item Proposed Actions Responsibility
1 NorthernPlayford Generating Plant Lease PMAPS
2 NorthernPlayford Land Lease PMAPS
3 Environmental Compliance Agreement PMAPS
4 SA Generation Licence PMAPS
5 EPA Licences PMAPS
6 AEMO Certification PMAPS
7 Pressure Vessel Registrations PMAPS
8 Crane Registrations PMAPS
9 WHS Act amp Regulations PMAPS
10 Code of Practice ndash Demolition Work PMAPS
1112 Alinta Policies
Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 38 -
Controls
Item Description Proposed Actions Responsibility
1
Compliance Guideline HSSE-019 Demolition and Decommissioning Adhere to Alinta Policy PMAPS
112 References
Item Document Responsibility
1 Care to Closure Risk Assessment PMAPS
2 NPS Care to Closure Plan PMAPS
3 PPS Hibernation Manual PMAPS
4 PPS Closure Manual PMAPS
5 NPS Lube schedules PMAPS
6 Inspection and Audit sheet PMAPS
7 APS Sewerage and Septic systems (Sharepoint) PMAPS
8 APS Contaminated Drains system (Sharepoint) PMAPS
9 APS Transmission line layout (Sharepoint) PMAPS
Appendix B NPS Make Safe Manual Correcteddocx - 39 -
113 Project Plan
114 NPS Administration
1141 NPS Isolations
Asset Management Strategy
To wind back plant and system isolations to Perimeter isolationsdisconnections
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Item Proposed Actions Responsibility
Resource plan Track actions against plan OMM
1142 NPS Closure Audit
Asset Management Strategy
To provide an Auditable record of controls put in place to render the site as safe as reasonably practical for salvagedemolition
Controls
The following Controls have been identified to
Item Proposed Actions Responsibility
1 Raise work orders for each control action OMM
Appendix B NPS Make Safe Manual Correcteddocx - 40 -
2 Complete Inspection amp Audit sheets as each system is made safe OMM
115 NPS Residual Risks
Management Strategy
To highlight to the salvagedemolition third parties any Residual risks remaining that are beyond the Alinta Energy Closure workscope
Item Residual Risks Responsibility
Stack Aviation lighting requirements will need to be met until the stack is demolished PMAPS
Boiler structure Aviation lighting requirements will need to be met until the boiler is demolished PMAPS
Boiler burners Asbestos sheet gaskets exists between each burner and the boiler front (48 in total) PMAPS
66 Breakers Contain asbestos backing boards PMAPS
Air Heaters Bearing oil baths will contain oil PMAPS
Mill Spring pits The Gerb springs supporting the Mills contain a thick composite oil in the damper packs PMAPS
Underground Fuel tanks
There is an underground petrol tank at the SE corner of the NPS Store PMAPS
Transformers Some of the 415V transformers contain Freon gas PMAPS
Fire deluge system
There are some mercury switches used in the Fire deluge systems PMAPS
Appendix B NPS Make Safe Manual Correcteddocx - 41 -
Generator circuit breakers The generator CBrsquos contain SF6 gas PMAPS
Appendix B NPS Make Safe Manual Correcteddocx - 42 -
Appendix C
alintaSFE everyone every day every job Zero Harm
Augusta Power Station
Playford Facility
Closure Manual
Revision Date Description Prepared by Reviewed by Approved by
A 1915 First Draft
B 51016 Corrections
C
Distribution List
Augusta Management Team
Closure Manual ndash PPS
Index
1 Introduction 3
2 Closure Philosophy 3
3 Closure Strategy 3
4 Responsibilities 3
5 PPS Closure 4
51 Turbine Generator 4
511 Turbine 4
512 Condenser Sea Side 5
513 Condenser Condensate Side 5
514 Turbine Valves 6
515 Generator 6
516 Turbine Auxiliaries 7
52 Boiler 8
521 Boiler Systems 8
522 Feedwater Systems 9
523 Boiler Feed Pumps (BFP) 9
524 Draught Plant 10
53 Station Auxiliaries 11
531 Electrical 11
532 Coal Systems 17
533 Fuel Oil 19
534 Ash Systems 20
535 Compressed Air 22
536 CW Systems 22
537 Water Treatment Plant 24
538 Town Water and Drains 25
539 Fire Protection system 25
5310 Workshops and Offices 26
6 Appendix 27
61 Legal and other Requirements 28
611 Legislation and Licences 28
612 Alinta Policies 29
613 References 29
62 Project Plan 29
63 PPS Administration 29
631 PPS Registered Plant 29
632 PPS Isolations 30
633 Closure Audit 30
7 PPS Residual Risks 31
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 2 -
1 Introduction
The Playford Power Station began operation in the early 1960rsquos as a Base load Station through to the late 1980rsquos It then began operating as reserve generation for peak demand periods through to 2012 PPS was then placed into Hibernation on a 90 day recall With the continuing market supply from Wind and Solar generation it was announced in 2015 that Playford along with NPS is no longer required and will be Shutdown and Decommissioned and the site Remediated in line with the Generating Lease Agreement
2 Closure Philosophy
The Closure plan seeks to facilitate the removal of the Power Station infrastructure to manage all of the Asset removal with no impact on the surrounding environsrsquo meet all condition of the Lease Agreement and Legislative requirements
Alinta acknowledges that the demolition and site rehabilitation works are deemed to be lsquoHigh Riskrsquo work activities and will ensure appropriate management of this work in accordance with WHS Act 2012 and Regulations
Alinta will ensure the key principle of lsquoZero Harmrsquo will be embedded in all activities associated with the Closure Disposal and Remediation of the APS site in accordance with the Lease Agreement
3 Closure Strategy
The Closure Strategy will be to remove all foreseeable hazards remaining at PPS to make the plant Safe to the environment and SalvageDemolition personnel during the remediation programme by completing the activities outlined in this document
4 Responsibilities
The lsquoFacilities Managerrsquo will seek approval of Closure plans and allocate resources to implement the effective management and closure of the PPS site to meet the lease agreement Communicate the sequence and timing of activities in accordance with this plan to internal stakeholders and external parties as required
The lsquoFacilities Remediation Project Managerrsquo will consult and liaise with the Demolition and Remediation contractors on site and will be supported by a number of Technical Specialists and Contract Administrators
The `Facilities Safety and Environment Managerrsquo will develop the framework for `High Riskrsquo demolition works and ensure subcontractors comply with all legislative requirements associated with the remediation works
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 3 -
5 PPS Closure
51 Turbine Generator
511 Turbine
5111 Lube Oil Systems
Asset Management Strategy Minimise residual hazards remaining in the Lube oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
TG Lube Oil systems
Plant Description Proposed Actions Responsibility
Main Oil tank InspectRemove any residual oil from the main oil tanks
Lube oil pipework
InspectRemove any residual oil from the lube oil pipework system
Oil centrifuges Drain gearbox oil and empty oil from bowl
5112 Seal Oil Systems
Asset Management Strategy
Minimise residual hazards remaining in the Seal oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Seal Oil system
Plant Description Proposed Actions Responsibility
Seal Oil tank InspectRemove any residual oil from the Seal oil tanks
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 4 -
Seal oil pipework
InspectRemove any residual oil from the Seal oil
pipework system
Seal oil vac pprsquos Drain oil from pprsquos
512 Condenser Sea Side Asset Management Strategy
Minimise build up of toxic gases from decomposed marine growth in the Condenser
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Condenser water boxes Open doors and drains on condensers and air dry
Check for gases in water boxes prior to demolition
513 Condenser Condensate Side Asset Management Strategy
Minimise the risk of build up of gases in this space
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 5 -
Plant Description Proposed Actions Responsibility
EE Condensers Open up condensate drains
Stal condensers Open up drains
Condensate gases Check for gases in condensate space prior to demolition
514 Turbine Valves
Asset Management Strategy
Minimise residual hazards remaining in the Valve Control oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Turbine Stop valves Drain all control oil
Turbine Throttle valves Drain all control oil
515 Generator Asset Management Strategy
Prepare Generators for demolition
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 6 -
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Generator Remove all access doors and open to atmosphere
Check for gases in generator space prior to demolition
Exciter breaker Release kinetic energy in exciter breaker
516 Turbine Auxiliaries Asset Management Strategy
Eliminate the possibility of gases andor pressure build up in the system during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
EE DC Htr and DC htr ext pps Open all drains and vents
Drain oil from pp bearings
Shunt DA pprsquos Drain oil from bearings
EE LP1 htr Open all drains and vents
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 7 -
Stal Gland leakage condensers DC Htr and DC htr ext pps Open all drains and vents
Stal Gland steam cooler Open all drains and vents
Stal Ejector condensers Open all drains and vents
Stal Gland leakage condensers and clean drains tank Open all drains and vents
Stal Auxillary steam vessels Open all drains and vents
All Vessels Check for gases in all Auxiliary vessel spaces prior to demolition
52 Boiler
521 Boiler Systems
5211 Pressure Parts
Asset Management Strategy
Minimise possibility of gases andor pressure build up in the system during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Boiler Tubes and Drums
Open top and bottom drum doors and open all vents and drains
Check for gases in all spaces prior to demolition
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 8 -
Sootblowers Drain sootblower gearbox oil
522 Feedwater Systems
5221 HP Heaters
Asset Management Strategy
Minimise possibility of gases andor pressure build up in the system during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
HP heaters Remove loop pipes from heaters
Open body drains and vents
Check for gases in hp heater space prior to demolition
Boiler dosing pprsquos Drain oil from pprsquos
523 Boiler Feed Pumps (BFP)
Asset Management Strategy
Minimise any residual hazards remaining in the Boiler Feed pumps
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 9 -
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Boiler feed pumps - Mather amp Platt Drain bearing oil reservoirs
Boiler feed pumps - Sulzer Drain bearing oil reservoirs
Feed pump headers ndash suction and discharge Open all drains and vents and sectionalising valves
Check for gases in all feed water header spaces prior to demolition
Steam driven feed pp Drain oil from bearings
524 Draught Plant
Asset Management Strategy
Minimise any residual hazards remaining in the Draught Plant
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
FD Fans Drain oil from FD fan bearings on Blr 12 amp 3 Note 45 amp 6 have greased bearings
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 10 -
53 Station Auxiliaries
531 Electrical
5311 DC Systems
Asset Management Strategy
Minimise the risk of DC ndash LeadAcid hazards to demolition crew
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
DC batteries A Station 110 volt Remove all LeadAcid batteries
DC batteries B Station 110 volt Remove all LeadAcid batteries
DC batteries B Station UPS Remove all LeadAcid batteries
Diesel generator 24 volt batteries two banks Remove all LeadAcid batteries
Diesel 24 volt Emergency Start Relay batteries Remove all LeadAcid batteries
Diesel Fire Pump Batteries Remove all LeadAcid batteries
DC batteries Station Fire System Remove all LeadAcid batteries
Terminal Room Remove all LeadAcid batteries
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 11 -
Decommission and remove all 132kV line protection devices Electranet
Diesel generator Drain oil and coolant
5312 Switchboards ndash 33kV amp 415V
Asset Management Strategy
To remove any kinetic energy stored in the 33kV switchgear and to supply an alternative power supply for limited emergency lighting and dewatering
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
33kV Breakers Discharge all spring loaded devices This will be done by operators when isolating the station PMA
5313 Power Transformers
Asset Management Strategy
Apply a perimeter isolation to the 275132kV AampB station switchyards to Eliminate risk of Electric Shock by disconnecting all HV supplies at major terminal points in A amp B station switchyards Eliminate the possibility of a transformer oil spill to the surrounding environment
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 12 -
275 kV step up tfrsquos Disconnect step up transformer B1 at 275kV droppers Comp
Disconnect step up transformer B2 at 275kV droppers Comp
Disconnect step up transformer B3 at 275kV droppers Comp
Disconnect step up transformer at B4 275kV droppers Comp
275kV Nth tie transformer disconnect from 275kV droppers
132kV System Disconnect points at isolators of AS2 AS4 amp disconnect cables at 11kV tertiary terminals at Nth tie transformer De-energised
33 kV to 415 volt transformers Drain all transformers and dispose of transformer oil
275 kV step up tfrsquos Drain all transformers and dispose of transformer oil
13211kV transformers
Drain transformers in A Stn switchyard (2 x 13211kV and old spare near canteen)
5314 DCSControl SystemsAlarms
Asset Management Strategy
Minimise the risk of residual power sources
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Processors Low voltage batteries to be removed
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 13 -
DC inverter batteries Remove batteries
5315 Actuators
Asset Management Strategy
Minimise risk of oil spill to environment during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Drain actuators of oil
5316 BH1 amp Compressor Equipment
Asset Management Strategy
Minimise any pressure hazards in the compressor system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
BH1 Compressor Shutdown compressor and drain Air recievers
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 14 -
Breaker Unplug from breaker housing
5317 11Kv Ring Main Equipment
Asset Management Strategy
Remove environmental contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Stator 11kV switchgear Drain oil
11kV transformers Drain oil
5318 Lifts amp Cranes
Asset Management Strategy
Decommission and de-register lifts and cranes in preparation for demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
B stn Nth and Sth lifts Deregistration
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 15 -
Degas air conditioners
Drain gearbox oil
Drain gearbox oil
PPS Cranes Drain oil from gearboxes
De-register cranes
5319 Public Address System
Asset Management Strategy
Isolate from NPS system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
PA system Disconnect PA system
53110 BE09BE10 33kV Switchgear
Asset Management Strategy
Remove environmental contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 16 -
Plant Description Proposed Actions Responsibility
Stator 33kV switchgear Drain oil
33kV transformers Drain oil
53111 132Kv System
Asset Management Strategy
To remove the DC power supplies to the 132kV protection equipment located in the A stn terminal room
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
132kV protection equipment Relocated by Electranet to a suitable location Electranet
132kV System Disconnect points at isolators of AS2 AS4 amp disconnect cables at 11kV tertiary terminals at Nth tie transformer
532 Coal Systems
5321 Coal Feeders
Asset Management Strategy
To minimise environmental hazards
Controls
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 17 -
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Feeder gearbox Drain gearbox oil
5322 Coal Conveyors
Asset Management Strategy
Remove environmental contaminants and kinetic energy from the coal system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Conveyors Drain gearbox oils (Note detailed risk assessment for access required due to condition of towers)
Wash down all conveyors
Release take up assemblies
Trippers Drain gearbox oils (Note detailed risk assessment for Bin access required due to condition of towers)
Ploughs Drain gearbox oils
Towers Wash down all towers
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 18 -
5323 Bins amp Bunkers
Asset Management Strategy
Minimise environmental hazards Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Bins Wash out bins
533 Fuel Oil
Asset Management Strategy
Remove environmental contaminants from Fuel oil system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Oil guns Remove and drain oil guns
FO Pipework Drain FO pipework ndash pump degreaser through system
FO transfer pprsquos Drain strainers
FO storage See NPS Closure Manual
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 19 -
534 Ash Systems
5341 Ash pumps amp pit
Asset Management Strategy
Maintain dewatering in B stn basement during salvagedemolition activities via an alternative power supply
Controls The following Controls have been identified to maintain site de-watering during SalvageDemolition operation
Plant Description Proposed Actions Responsibility
Alternative power supply
Install temporary generator for ash pumpde-watering pumps and emergency lighting
Ash pump Alternative power supply andor pump required after site power system shut down
5342 HP amp LP Sluice pumps
Asset Management Strategy
Remove environmental contaminants from sluice pumps
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
HP sluice pumps Drain oil from bearing reservoirs
LP sluice pumps Drain oil from bearing reservoirs
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 20 -
5343 Ash Hoppers
Asset Management Strategy
Remove environmental contaminants from hoppers
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Screw conveyors Drain gearbox oils
5344 Deashers
Asset Management Strategy
Remove environmental contaminants from Deashers
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Deashers Drain gearbox oils
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 21 -
535 Compressed Air
Asset Management Strategy
Shut down assets and depressurise the system and remove environmental contanimants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
No 1 amp 2 Compressors Drain oil from air ends and separators
Sth and SW compressors Drain oil from air ends and separators
Air receivers De-pressurise and Open drainvent valves on GS air receivers
De-pressurise and Open drainvent valves on Blr FF air receivers and pulse tanks
De-pressurise and Open drainvent valves on TG air receivers
536 CW Systems
5361 CW Pumps
Asset Management Strategy
Remove environmental contaminants from CW pumps
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 22 -
Plant Description Proposed Actions Responsibility
CW pumps Drain oil from bearings
5362 CW Chambers
Asset Management Strategy
Isolate the gulf waters from the basement
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Chamber
Controls to manage isolation between gulf and basement to be developed Currently spades inserted on CW pump outlets
5363 CW Screens
Asset Management Strategy
Remove environmental contaminants from CW screens
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
CW Screens Drain gearbox and fluid drive oils
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 23 -
537 Water Treatment Plant
Asset Management Strategy
Remove any remaining residual contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Anion tanks Remove and dispose of resin
Mixed bed vessels Remove and dispose of resin
Cation tanks Remove and dispose of resin
Sand filters Remove and dispose of sand
Carbon filters Remove and dispose of Anthracite
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 24 -
538 Town Water and Drains Asset Management Strategy To maintain basement de-watering during salvagedemolition operation
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Sump pumps Install temporary generator for sump pumps
De-watering pump Install temporary generator for de-watering pump
Contaminated drain tank
Pump out Contaminated drain tank after all oils drained from station
Black water system
Disconnect connection from NPS feedline from A stn sewerage tank and Workshopstores sewerage tank Pump out existing tanks in preparation for demolition
Town Water storage tanks Drain water tank
TW supply Isolate TW supply from NPS and SA Water
Hot Water services Drain Workshop and office HWSrsquos
539 Fire Protection system
Asset Management Strategy
Decommission fire protection system and remove environmental contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 25 -
Plant Description Proposed Actions Responsibility
Fire system Advise FM Global of change in status from insured to uninsured facility
Diesel Fire Pumps See NPS Closure Manual `Infrastructure of Interestrsquo
Water storage tank Drain water tank
FM500 system Decommission and remove cylinder
Accumulator Decommission Accumulator at Fire Diesels
33kV room compressor Drain oil from compressor
Fire extinguishers Remove all fire extinguishers
5310 Workshops and Offices
Asset Management Strategy
Minimise any hazards that may impact on demolition crews
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Item Proposed Actions Responsibility
PPS Fitting Shop
Decommission all Electrical supplies air-conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including asbestos removalmanagement sewage system decommissioning and site rehabilitation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 26 -
PPS Boiler Shop and Spares Store
Decommission all Electrical supplies air-conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including asbestos removalmanagement sewage system decommissioning and site rehabilitation
PPS Electrical Shop
Decommission all Electrical supplies air-conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including asbestos removalmanagement sewage system decommissioning and site rehabilitation
Kaefers Workshop
Decommission all Electrical supplies air conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including sewage system decommissioning and site rehabilitation
Grit Blasters Facility
Decommission all Electrical supplies town water systems to facility
Inventory and remove all plant tools and equipment for disposal
Offices Decommission Air Conditioners
Salvage and dispose of furniture and fittings
Remove paperwork required to be kept to comply with Statutory obligations
Equipment rooms Decommission Air conditioners
6 Appendix
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 27 -
61 Legal and other Requirements
611 Legislation and Licences
Management Strategy
Comply with all Legislation and Lease agreements during the Closureremediation process
Item Document Responsibility
1 NorthernPlayford Generating Plant Lease
2 NorthernPlayford Land Lease
3 Environmental Compliance Agreement
4 SA Generation Licence
5 EPA Licences
6 AEMO Certification
7 Pressure Vessel Registrations
8 Lifts Registrations
9 WHS Act amp Regulations
10 Code of Practice ndash Demolition Work
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 28 -
612 Alinta Policies
Item Policy Responsibility
1 Compliance Guideline HSSE-019 Demolition and Decommissioning
613 References
Item Documents Responsibility
1 Care to Closure Risk Assessment
2 NPS Care to Closure Plan
3 PPS Hibernation Manual
4 Inspection amp Audit Sheet
62 Project Plan
63 PPS Administration
631 PPS Registered Plant
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 29 -
Management Strategy
To De-commission and de-register registered Plant
Controls
Item Proposed Actions Responsibility
1 Advise Safework SA in writing of pressure vessels that have been decommissioned
2 Advise Safework SA in writing of Lifts that have been decommissioned
632 PPS Isolations
Management Strategy
To wind back plant and system isolations to Perimeter disconnections
Controls
Item Proposed Actions Responsibility
Existing isolations Clear isolations and remove isolation tags from plant
633 Closure Audit
Management Strategy
To provide an Auditable record of controls put in place to render the site as safe as reasonably practical for salvagedemolition
Controls
Item Proposed Actions Responsibility
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 30 -
7
1 Raise work orders for each control action
2 Complete Inspection amp Audit sheets as each system is made safe
PPS Residual Risks
Management Strategy
To highlight to the salvagedemolition third parties any Residual risks remaining that are beyond the Alinta Energy Closure workscope
Item Residual Risks Responsibility
Boiler insulation Contains Asbestos
WorkshopAdmin building materials Contains asbestos
Basement flooding Seawater seepage into basement
Tunnels Cable tunnels exist between Turbine halls and switchyards
Bag Filters
Bags may still be impregnated with ash potential dust problem on demolition Residual Ash may be present in hoppers
PPS Seawall
Vehicle access to sea side of B Station has been closed due to condemned seawall pillings Will present problems to make safe works in this area
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 31 -
Appendix D
everyone every day every jab Zero Harm
0
i t------------t i t--------t
i
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
5 51
52
53
54
55
System
TurbineBoiler Unit Turbine
Turbine oil systems
Condenser condensate side
Condenser seawater side
Turbine valves
Generator Barring gear
Hydrogen system
CW system CW Pumps
CW Ducts
Feedwater system LP Feedwater
Condensate Polishing Plant
Blr Feed Pumps
HP heaters
Feed make up system
Boiler
Task Name
Ensure all SWMS amp Risk assessments are reviewed and All Personnel signed onto Isolation permits prior to commencing work
NPS Care Closure NPS Unit 1 Care - Project No
TurbineBoiler Unit Turbine
Turbine off
Turbine oil systems
Lube oil system to remain operational
Seal oil system to remain operational
Condenser condensate side
Isolation
Open doors
Condenser seawater side
Drain seawater side of condenser
Turbine valves Isolation
Unit Care - Turbine complete
Generator Barring gear
Run on Barring gear to prevent rotors sagging
Hydrogen system Decommision hydrogen system and purge generator
Unit Care - Generator complete
CW system CW Pumps
Isolation
CW Ducts Ducts to be maintained empty and dry per culvert dewatering system
Unit Care - CW System complete
Feedwater system LP Feedwater
Isolation - CEPs
LP htrs GS Condenser and LP Ejector Drain and store dry
Deaerator and DAFT Drain and store dry
Condensate Polishing Plant
Open vessels
Gas Clearance
Remove resins
Blr Feed Pumps Isolate and drain Feed pumps
HP heaters Isolation
Drain and store dry
Feed make up system
Isolation
Drain Make up tanks
Unit Care - Feedwater System complete
Boiler Boiler off
Duration
0 hrs
24038 hrs
1705 hrs
1705 hrs 725 hrs 1 hr
0 hrs
0 hrs
0 hrs
55 hrs
8 hrs
1 hr
275 hrs
4 hrs
0 hrs 3 hrs
0 hrs
3752 hrs 3752 hrs 120 hrs
1 hr 8 hrs
0 hrs
0 hrs 0 hrs 1 hr
0 hrs 8 hrs
0 hrs
33 hrs 5 hrs 1 hr
8 hrs
8 hrs
27 hrs
2 hrs
1 hr
24 hrs
625 hrs 8 hrs
7 hrs 6 hrs
8 hrs
6 hrs
2 hrs
8 hrs
0 hrs
5332 hrs 2 hrs
Page 1 of 12
39
40
41
42
43
44
45
46
47
48
49
50
a1middotn a s~FE everyone every day every jab Zero Harm
0 I I I
~ ~ i i i
~ ~ i i i
bfl - r r r - l l l
~ ~ i
i i ~ i
~ i
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I I I
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-
-
i -
i -
i -
i I I I
- L ~
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
56
59
System
Pressure parts Storage
Furnace and Gas path
Draught Plant Air heaters
ID Fans
GR Fan
PA fan
SA fan
Ducts and dampers
ACW System Seawater side
Task Name
Pressure parts Storage
Control cool and drain boiler (in accordance with drainage schedule) Item 8
Isolation
Open boiler doors
Boiler gas clearances
Initiate sprays (pre wash) in Eco 1 amp 2
Furnace and Gas path
Sootblow 8 hrs prior to shutdown
Keep deasher in service for duration of wash
Remove Economiser e-valves
Gas Clearances
Furnace and economiser wash
External Wash down structure
Unit Care - Boiler complete
Draught Plant Air heaters
Shut down once core temp lt 100 degrees
Isolation
Remove dump vvs amp e-vvs
Deluge wash
Open doors
Gas Clearance
Manual internal wash
ID Fans Shut down amp Isolate once unit gas path is dry after precip wash - 48
Open doors
Gas Clearance
Washvocuum windboxes
GR Fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
PA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
SA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
Ducts and dampers
Isolation
Open doors
Gas clearances
WashVacuum GR outlet and precipitator outlet duct
Inspect all ducts and vacuum as required
Unit Care - Draught Plant complete
ACW System Seawater side
Duration
1932 hrs
8 hrs
4 hrs
682 hrs
2 hrs
6 hrs
5332 hrs
6 hrs
0 hrs
4 hrs
1 hr
24 hrs
275 hrs 8 hrs
0 hrs
1695 hrs 4798 hrs 2 hrs
2 hrs
4 hrs
2 hrs
4 hrs
1 hr
16 hrs
165 hrs 4 hrs
4 hrs
1 hr
8 hrs
105 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
1695 hrs
2 hrs
4 hrs
2 hrs
80 hrs
80 hrs
0 hrs
0 hrs 0 hrs 2 hrs Isolate amp drain and dry store (Unit)
Page 2 of 12
93
94
95
96
97
98
99
100
101
102
103
104
everyone every day every jab Zero Harm
0
~ ~ i ~ ~ i i ~ ~ i i ~ i 6tJ i i i ~ i ~ i i i ~ ~ i i i ~ ~ i i
i I-----
i 1------1
I----- i
i 1------1 i
~ i I-----
i I-----
i 1------lii i
i
- l
L
- L
l l
L L
L L
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual System Task Name Index No
Unit Care - ACW System complete
510 Coal System Coal System Bins amp Bunkers Bunkers
Run down bunker levels
Isolate Mill Feeders
Fit bunker emptying chute to EN Feeder chute
Empty EN bunker
Wash EN Bunker
Remove bunker emptying chute from EN
Fit bunker emptying chute to WN Feeder chute
Empty WN bunker
Wash WN Bunker
Remove bunker emptying chute from WN
Fit bunker emptying chute to EC Feeder chute
Empty EC bunker
Wash EC Bunker
Remove bunker emptying chute from EC
Fit bunker emptying chute to WC Feeder chute
Empty WC bunker
Wash WC Bunker
Remove bunker emptying chute from WC
Fit bunker emptying chute to ES Feeder chute
Empty ES bunker
Wash ES Bunker
Remove bunker emptying chute from ES
Fit bunker emptying chute to WS Feeder chute
Empty WS bunker
Wash WS Bunker
Remove bunker emptying chute from WS
Coal feeders Coal feeders Open EN Feeder
Gas clearance
Vac and wash out
Open WN Feeder vac and wash out
Gas clearance
Vac and wash out
Open EC Feeder vac and wash out
Gas clearance
Vac and wash out
Open WC Feeder vac and wash out
Gas clearance
Vac and wash out
Open ES Feeder
Gas clearance
Vac and wash out
Open WS Feeder
Gas clearance
Vac and wash out
Mills Mills Open EN Mill
Gas clearance
Wash out EN Mill - leave open to dry out
Open WN Mill
Gas clearance
Wash out WN Mill - leave open to dry out
Open EC Mill
Duration
0 hrs
7347 hrs 5487 hrs 4 hrs
8 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
4827 hrs 1 hr
1 hr
465 hrs
4 hrs
1 hr
4 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
74 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
832 hrs
5655 hrs 1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
Page 3 of 12
148
149
150
151
152
153
154
155
156
157
158
159
160
everyone every day every jab Zero Harm
0 i
1-------1~
1-------1 i
~ i 1-------1
i 1-------1
~ i 1-------1 i
1-------1~
i 1-------1
l-------16tl
1-------1~
i 1-------1
i 1-------1
1-------1~
i 1-------1
1-------1~
i 1-------1
i 1-------1 i 1-------1~
1-------1~
1-------1 ~ i
1-------1~
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
511
512
6 62
5 51
System
Fuel Oil FO pumps
Storage tanks
Ash system Hoppers
Precips
Deasher
Ash pitpumps
Electrical Systems Instrumentation
TurbineBoiler Unit Turbine
Turbine oil systems
Task Name
Gas clearance
Wash out EC Mill - leave open to dry out
Open WC Mill
Gas clearance
Wash out WC Mill - leave open to dry out
Open ES Mill
Gas clearance
Wash out ES Mill - leave open to dry out
Open WS Mill
Gas clearance
Wash out WS Mill - leave open to dry out
Release roller spring tension
Unit Care - Coal System complete
Fuel Oil FO pumps
Shut oil pumps down when unit OOS
Isolate fuel oil system
Clean filters and system
Drain FO system
Storage tanks Run down storage level (burn sell if possible)
Isolate
Unit Care - Fuel Oil complete
Ash system Hoppers
Run local manual dump
Open hopper doors
Precips Isolate
Remove Precip e-valves
Gas clearance
Full wash of internals - washing manifold
Store with air doors open for natural air circulation
Deasher Isolation
Gas clearance
Full wash of all internals store dry
Ash pitpumps Flush and pump down pit - leave available
Unit Care - Ash System complete
Electrical Systems Instrumentation
Build scaffold for furnace camera removal
Remove furnace camera
Dismantle scaffold after furnace camera removal
Unit Care - Electrical Systems complete
Unit 1 Care Complete
NPS Unit 2 Care - Project No TurbineBoiler Unit
Turbine Turbine off
Turbine oil systems
Lube oil system to remain operational
Seal oil system to remain operational
Duration
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
6 hrs
0 hrs
345 hrs 335 hrs 1 hr
1 hr
8 hrs
24 hrs
0 hrs 0 hrs
1 hr
0 hrs
629 hrs 629 hrs 8 hrs
3 hrs
525 hrs 4 hrs
24 hrs
1 hr
24 hrs
0 hrs
417 hrs 2 hrs
1 hr
2 hrs
0 hrs 0 hrs
0 hrs
14 hrs 14 hrs 4 hrs
8 hrs
2 hrs
0 hrs
0 hrs
18598 hrs
18598 hrs 2238 hrs 1 hr
0 hrs
0 hrs
0 hrs
Page 4 of 12
204
205
206
207
208
209
210
211
212
213
214
a1middotn a s~FE everyone every day every jab Zero Harm
0 I I I
~ i
~
~ - r r r - l l l
~
~ I I I
- l L l ~
~ I I I
- L L L ~ ~ ~
i i i
~
lii Iii
Iii ~ -
I I I
-
Iii L L L -
lil ~ i i i
lil 6tl i i i
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
52
53
54
55
System
Condenser condensate side
Condenser seawater side
Turbine valves
Generator Barring gear
Hydrogen system
CW system CW Pumps
CW Ducts
Feedwater system LP Feedwater
Condensate Polishing Plant
Blr Feed Pumps
HP heaters
Feed make up system
Boiler
Pressure parts Storage
Furnace and Gas path
Task Name
Condenser condensate side
Isolation
Open doors
Condenser seawater side
Drain seawater side of condenser
Turbine valves Isolation
Unit Care - Turbine complete
Generator Barring gear
Run on Barring gear to prevent rotors sagging
Hydrogen system Decommision hydrogen system and purge generator
Unit Care - Generator complete
CW system CW Pumps
Isolation
CW Ducts Ducts to be maintained empty and dry per culvert dewatering system
Unit Care - CW System complete
Feedwater system LP Feedwater
Isolation - CEPs
LP htrs GS Condenser and LP Ejector Drain and store dry
Deaerator and DAFT Drain and store dry
Condensate Polishing Plant
Open vessels
Gas Clearance
Remove resins
Blr Feed Pumps Isolate and drain Feed pumps
HP heaters Isolation
Drain and store dry
Feed make up system
Isolation
Drain Make up tanks
Unit Care - Feedwater System complete
Boiler Boiler off
Pressure parts Storage
Control cool and drain boiler (in accordance with drainage schedule) Item 8
Isolation
Open boiler doors
Boiler gas clearances
Initiate sprays (pre wash) in Eco 1 amp 2
Furnace and Gas path
Sootblow 8 hrs prior to shutdown
Keep deasher in service for duration of wash
Remove Economiser e-valves
Gas Clearances
Furnace and economiser wash
Duration
617 hrs
8 hrs
1 hr
24 hrs
4 hrs
0 hrs 3 hrs
0 hrs
227 hrs 227 hrs 120 hrs
2 hrs 8 hrs
0 hrs
0 hrs 0 hrs 1 hr
0 hrs 8 hrs
0 hrs
33 hrs 617 hrs 1 hr
8 hrs
8 hrs
27 hrs
2 hrs
1 hr
24 hrs
557 hrs 8 hrs
757 hrs 6 hrs
8 hrs
717 hrs
2 hrs
8 hrs
0 hrs
543 hrs 2 hrs
203 hrs
8 hrs
4 hrs
713 hrs
2 hrs
6 hrs
543 hrs
6 hrs
0 hrs
4 hrs
1 hr
24 hrs
Page 5 of 12
255
256
257
258
259
260
261
262
263
264
265
266
a1middotn a s~FE everyone every day every jab Zero Harm
0
~ i - r r r - L L L
~ ~ i
i i ~
6 i
i
~ i i i
i i i
i i i
i i --
i i
~ -
- L L L ~ ~ i ~ i ~ i i i ~ i Iii i i
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
56
59
Isolate amp drain and dry store (Unit)
510
System
Draught Plant Air heaters
ID Fans
GR Fan
PA fan
SA fan
Ducts and dampers
ACW System Seawater side
Coal System Bins amp Bunkers
Task Name
External Wash down structure
Unit Care - Boiler complete
Draught Plant Air heaters
Shut down once core temp lt 100 degrees
Isolation
Remove dump vvs amp e-vvs
Deluge wash
Open doors
Gas Clearance
Manual internal wash
ID Fans Shut down amp Isolate once unit gas path is dry after precip wash - 48
Open doors
Gas Clearance
Washvocuum windboxes
GR Fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
PA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
SA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
Ducts and dampers
Isolation
Open doors
Gas clearances
WashVacuum GR outlet and precipitator outlet duct
Inspect all ducts and vacuum as required
Unit Care - Draught Plant complete
ACW System Seawater side
Unit Care - ACW System complete
Coal System Bunkers
Run down bunker levels
Isolate Mill Feeders
Fit bunker emptying chute to EN Feeder chute
Empty EN bunker
Wash EN Bunker
Remove bunker emptying chute from EN
Fit bunker emptying chute to WN Feeder chute
Empty WN bunker
Wash WN Bunker
Remove bunker emptying chute from WN
Duration
24 hrs 8 hrs
0 hrs
16917 hrs 4748 hrs 2 hrs
2 hrs
4 hrs
2 hrs
4 hrs
1 hr
16 hrs
13 hrs 4 hrs
4 hrs
1 hr
8 hrs
1067 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
16917 hrs
2 hrs
4 hrs
2 hrs
80 hrs
80 hrs
0 hrs
0 hrs 0 hrs 2 hrs
0 hrs
7347 hrs 5865 hrs 4 hrs
8 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
Page 6 of 12
309
310
311
312
313
314
315
316
317
318
319
320
321
a1middotn a s~FE everyone every day every jab Zero Harm
0 I I I i ~ ~ i i ~ ~ i i i ~ i ~ i i i 6 i ~ i
i i
i i
i
i - -- r r r i ~ L L L i i ~ I I I
i - - L L L
~ i i
~ i i
~ i
~ i
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual System Task Name Index No
Fit bunker emptying chute to EC Feeder chute
Empty EC bunker
Wash EC Bunker
Remove bunker emptying chute from EC
Fit bunker emptying chute to WC Feeder chute
Empty WC bunker
Wash WC Bunker
Remove bunker emptying chute from WC
Fit bunker emptying chute to ES Feeder chute
Empty ES bunker
Wash ES Bunker
Remove bunker emptying chute from ES
Fit bunker emptying chute to WS Feeder chute
Empty WS bunker
Wash WS Bunker
Remove bunker emptying chute from WS
Coal feeders Coal feeders Open EN Feeder
Gas clearance
Vac and wash out
Open WN Feeder vac and wash out
Gas clearance
Vac and wash out
Open EC Feeder vac and wash out
Gas clearance
Vac and wash out
Open WC Feeder vac and wash out
Gas clearance
Vac and wash out
Open ES Feeder
Gas clearance
Vac and wash out
Open WS Feeder
Gas clearance
Vac and wash out
Mills Mills Open EN Mill
Gas clearance
Wash out EN Mill - leave open to dry out
Open WN Mill
Gas clearance
Wash out WN Mill - leave open to dry out
Open EC Mill
Gas clearance
Wash out EC Mill - leave open to dry out
Open WC Mill
Gas clearance
Wash out WC Mill - leave open to dry out
Open ES Mill
ltNew Taskgt
Wash out ES Mill - leave open to dry out
Open WS Mill
Gas clearance
Wash out WS Mill - leave open to dry out
Release roller spring tension
Unit Care - Coal System complete
Duration
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
509 hrs 1 hr
1 hr
465 hrs
4 hrs
1 hr
4 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
75 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
832 hrs
554 hrs 1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
8 hrs
8 hrs
1 hr
1 hr
8 hrs
6 hrs
0 hrs
Page 7 of 12
365
366
367
368
369
370
371
372
373
374
375
376
377
everyone every day every jab Zero Harm
0
~ gt------------lt~
i I-----
i t-------t
I-----~
I-----~
I-----~
i t-------t
6tJ I----- i
i t-------t
i gt------------lt~
gt------------lt~
I-----~
gt------------lt~
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NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
System Task Name Duration
378 511 Fuel Oil Fuel Oil 5048 hrs 379 FO pumps FO pumps 3367 hrs 380 Shut oil pumps down when unit OOS 1 hr
381 Isolate fuel oil system 1 hr
382 Clean filters and system 8 hrs
383 Drain FO system 24 hrs
384 Storage tanks Storage tanks 0 hrs 385 Run down storage level (burn sell if possible) 0 hrs
386 Isolate 1 hr
387 Unit Care - Fuel Oil complete 0 hrs
388 512 Ash system Ash system 7803 hrs 389 Hoppers Hoppers 6322 hrs 390 Run local manual dump 8 hrs
391 Open hopper doors 3 hrs
392 Precips Precips 5217 hrs 393 Isolate 4 hrs
394 Remove Precip e-valves 24 hrs
395 Gas clearance 1 hr
396 Full wash of internals - washing manifold 24 hrs
397 Store with air doors open for natural air circulation 0 hrs
398 Deasher Deasher 417 hrs 399 Isolation 2 hrs
400 Gas clearance 1 hr
401 Full wash of all internals store dry 2 hrs
402 Ash pitpumps Ash pitpumps 0 hrs 403 Flush and pump down pit - leave available 0 hrs
404 Unit Care - Ash System complete 0 hrs
405 6 Electrical Systems Electrical Systems 14 hrs 406 62 Instrumentation Instrumentation 14 hrs 407 Build scaffold for furnace camera removal 4 hrs
408 Remove furnace camera 8 hrs
409 Dismantle scaffold after furnace camera removal 2 hrs
410 Unit Care - Electrical Systems complete 0 hrs
411 Unit 1 Care Complete 0 hrs
412 NPS Station Care - Project No 101 hrs
413 5 TurbineBoiler Unit TurbineBoiler Unit 101 hrs 414 510 Coal System Coal System 101 hrs 415 Train unloading Train unloading 3 hrs 416 Isolate unloader 1 hr
417 Washvaccuum train unloader 2 hrs
418 Bins Bins 64 hrs 419 Wash out coal bins 64 hrs
420 Conveyors Conveyors 100 hrs 421 Isolate conveyors 4 hrs
422 Wash down conveyors 32 hrs
423 Coal Towers Coal Towers 32 hrs 424 Wash down coal towers 32 hrs
425 Station Care - Coal System complete 0 hrs
426 511 Fuel Oil Fuel Oil 585 hrs 427 FO pumps FO pumps 585 hrs 428 Isolate fuel oil unloading delivery pumps 2 hrs
429 Drain fuel oil pipework 24 hrs
430 FO Storage tanks FO Storage tanks 32 hrs 431 Drain fuel oil storage tanks and vaccuum out any residue 32 hrs
432 FO Storage - PPS FO Storage - PPS 10 hrs 433 Run stocks to minimum levels 0 hrs
Page 8 of 12
everyone every day every jab Zero Harm
0
t------t i
t------t i
f--------l i
i t------t
i t------t
i f--------l i
f--------l i
i f--------l i
i f--------l
i t------t
i f--------l i
t------t i
t------t i
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
7 71
5 51
53
54
System
FO Storage - service tank
Stn Aux Aux Blr
TurbineBoiler Unit Turbine Turbine Oil Systems
CEPs
Turbine valves
CW system Chambers
CW Pumps
CW Dosing
Feedwater system
Task Name
Clean out remaining oil
FO Storage - service tank
Run stocks to minimum levels
Clean out remaining oil
Station Care - Fuel Oil complete
Stn Aux Aux Blr
Isolation
Drain and dry store Aux Blr
DACP Disconnect discharge pipework
Remove collection vessel filter bags
Wash collection vessels
NPS Station Care Complete
NPS Closure - Project No TurbineBoiler Unit
Turbine Turbine Oil Systems
Isolation
Drain main oil tank and pipework
Drain seal oil defoaming tank and pipework
Drain seal oil drain regulator tanks
Drain Loop seal tanks
Isolate electrical supplies to pumps
CEPs Drain oil from CEP and motor
Turbine valves Isolate power supplies
Drain actuators and pipework
Drain control stations and acumulators
NPS Closure - Turbine complete
CW system Chambers
Stop log sealing faces to be cleaned divers required
Install stop logs
CW chamber drained
dewatering pump installed
Remove CW pump
Fit blanks
Remove Dewatering pp
Remove stop logs
CW Pumps Drain oil from pump bearings
Ferrous Chloride dosing
Drain and flush tank amp pipe work to condenser
Isolation
Chlorination Plant Flush acid pipe work with sea water
Isolation
Drain acid tank
Wash out acid tank
NPS Closure - CW System complete
Feedwater system
Duration
8 hrs
10 hrs
0 hrs
8 hrs
0 hrs
715 hrs 10 hrs 2 hrs
8 hrs
18 hrs 2 hrs
8 hrs
8 hrs
0 hrs
24038 hrs
24038 hrs 168 hrs 168 hrs
4 hrs
64 hrs
32 hrs
32 hrs
32 hrs
4 hrs
32 hrs 32 hrs
98 hrs 2 hrs
48 hrs
48 hrs
0 hrs
24038 hrs 218 hrs 32 hrs
32 hrs
16 hrs
2 hrs
80 hrs
32 hrs
8 hrs
16 hrs
8 hrs 8 hrs
17 hrs
16 hrs
1 hr
5 hrs 1 hr
2 hrs
1 hr
1 hr
0 hrs
35 hrs
Page 9 of 12
475
476
477
478
479
480
481
482
483
484
485
486
everyone every day every jab Zero Harm
0
t------t i
t------t i
t------t i
t-------t i
t------t i
t------t i
t-------t i
t------t i
t-------t i
t------t i
t-------t i
t-------t i
t------t i
i
t------t i
t------t i
i t-------t i
t------t i
t------t i
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
System Task Name Duration
487 Res Feed Water Tanks Res Feed Water Tanks 2 hrs
488 Drain RFW tanks 2 hrs
489 LP Feedheaters LP Feedheaters 8 hrs 490 Open drains and doors 8 hrs
491 GS condenser GS condenser 8 hrs 492 Open drains and doors 8 hrs
493 LP ejector LP ejector 8 hrs 494 Open drains and doors 8 hrs
495 Boiler feed Pumps Boiler feed Pumps 32 hrs 496 Remove oil from BFP and GTD 32 hrs
497 HP 6 amp 7 HP 6 amp 7 4 hrs 498 Open drains 4 hrs
499 Ammonia dosing pp Ammonia dosing pp 4 hrs
500 Drain oil from bearings 4 hrs
501 55 Boiler Boiler 8 hrs 502 Pressure parts Pressure parts 8 hrs 503 Open all drains and vents 8 hrs
504 Safety valves Safety valves 8 hrs 505 Relieve safety valve spring tensions 8 hrs
506 Blowdown vessels Blowdown vessels 8 hrs 507 Open all drains and vents 8 hrs
508 56 Draught Plant Draught Plant 16 hrs 509 Air Heaters Air Heaters 16 hrs 510 Drain oil from bearings and gearboxes 16 hrs
511 ID fans ID fans 16 hrs 512 Drain oil from bearings and oil tanks 16 hrs
513 GR Fan GR Fan 8 hrs 514 Drain oil from bearings and oil tanks 8 hrs
515 PA fan PA fan 8 hrs 516 Drain oil from bearings and oil tanks 8 hrs
517 SA SA 8 hrs 518 Drain oil from bearings and oil tanks 8 hrs
519 57 Valves Valves 40 hrs 520 Station safety vvs Station safety vvs 40 hrs 521 Relieve spring tensions 40 hrs
522 510 Coal System Coal System 125 hrs 523 Ploughs Ploughs 8 hrs 524 Drain gearbox oils 8 hrs
525 Trippers Trippers 8 hrs 526 Drain gearbox oils 8 hrs
527 Conveyors Conveyors 24 hrs 528 Drain oil from gearboxes 24 hrs
529 Coal feeders Coal feeders 36 hrs 530 Drain oil from gearboxes 36 hrs
531 Mills Mills 96 hrs 532 Drain oil from gearboxes 96 hrs
533 Drain oil from Rollers 48 hrs
534 512 Ash system Ash system 8 hrs 535 Deasher Deasher 8 hrs 536 Drain oil from hydraulic units 8 hrs
537 Crusher Crusher 4 hrs 538 Drain oil from crusher drive 4 hrs
539 Ash pitpumps Ash pitpumps 4 hrs 540 Isolate amp install submersible pp (discuss with contractor) 4 hrs
541 6 Electrical Systems Electrical Systems 24038 hrs
Page 10 of 12
everyone every day every jab Zero Harm
0
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542
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576
577
578
579
580
581
582
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
61
62
63
64
65
67
7 71
72
73
System
Control Systems FCS battery systems
Fire safety system
Instrumentation FCS stations
FCS inverter output
FCS inverter input
DC systems DC systems 220v
110v
24v
HV supply High Voltage supply
Switchboards 66
415V
Diesel Generators
Stn Aux Aux Blr
Compressed Air Compressors
Receivers
WTP RO Plant
Task Name
Control Systems FCS battery systems
Remove low voltage dc batteries
Fire safety system Decommission and remove DC battery inverter
Instrumentation FCS stations
Isolate AC supply to FCS stations
FCS inverter output
Isolate inverter supply to FCS stations
FCS inverter input Decommision inverter DC supplies
DC systems DC systems 220v
Decommission battery charger
Remove batteries
Wash down battery storage area
110v Decommission battery charger
Remove batteries
Wash down battery storage area
24v
Decommission battery charger
Remove batteries
Wash down battery storage area
HV supply High Voltage supply
Disconnect 275kV supply at Davenport - Electranet
Disconnect at the 18kV side of the transformer
Disconnect the 132kV line to the House transformer
Switchboards 66
Isolate 66 switchboards
discharge breaker spring
415V discharge breaker spring
Diesel Generators
Electrical disconnection
Mechanical Disconnection
Drain fuel tank
Electrical Systems complete
Stn Aux Aux Blr
Drain Auxillary blr fuel oil tank
Drain dosing chemicals
Compressed Air Compressors
Shut down and isolate compressors
Receivers Open up Air receivers
WTP RO Plant
Duration
6 hrs 6 hrs
6 hrs
2 hrs 2 hrs
3 hrs 2 hrs 2 hrs
3 hrs
3 hrs
1 hr 1 hr
24038 hrs 16 hrs 1 hr
16 hrs
2 hrs
12 hrs 1 hr
12 hrs
2 hrs
15 hrs 4 hrs
1 hr
8 hrs
2 hrs
48 hrs 48 hrs
0 hrs
24 hrs
24 hrs
24 hrs 24 hrs 2238 hrs
24 hrs
24 hrs 24 hrs
36 hrs 2 hrs
16 hrs
16 hrs
2 hrs
0 hrs
40 hrs 8 hrs 8 hrs
2 hrs
3 hrs 3 hrs 3 hrs
1 hr 1 hr
40 hrs 8 hrs
Isolate system
Isolate generators for removal
Page 11 of 12
583
584
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everyone every day every jab Zero Harm
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596
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622
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626
627
628
629
630
631
632
633
634
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID
635
636
Wg Manual Index No
74
Remove all portable fire extinguishers from site
8 81
83
84
System
WTP
Fire Protection Fire feedwater
Fire Deluge systems
Diesel Fire Pumps
Electric pmps
Fire detection DCPs
Halon systems
Vesda system
Fire extinguishers
Services Workshops Mills
Plant
ElectricalCoal line
Chem Lab
Admin
Document information and management
Pressure vessel de-registration
Security Appendix
Task Name
Decommission plant
WTP Drain all vessels
Dispose of resins and chemicals
Fire Protection Fire feedwater
Isolate from supply and drain system
Fire Deluge systems
Drain at pump discharge and each deluge station
Diesel Fire Pumps Drain fuel tank engine oil and coolant
Electric pumps Isolate motors
Fire detection DCPs
Isolate and remove lead acid batteries
Halon systems Decommission and Remove Halon cylinders
Vesda system remove batteries from Vesda units
Fire extinguishers
Services Workshops
Mills Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
Plant Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
ElectricalCoal line Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
Chem Lab Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
Admin ltNew Taskgt
Document information and management
Pressure vessel de-registration
Duration
8 hrs
40 hrs 40 hrs
40 hrs
8 hrs 4 hrs 4 hrs
8 hrs
8 hrs
8 hrs 8 hrs
2 hrs 2 hrs
8 hrs
8 hrs
8 hrs 8 hrs
4 hrs 4 hrs
8 hrs 8 hrs
40 hrs 40 hrs 8 hrs 2 hrs
8 hrs
8 hrs 2 hrs
8 hrs
8 hrs 2 hrs
8 hrs
40 hrs 40 hrs
24 hrs
8 hrs 8 hrs
8 hrs
8 hrs
8 hrs
8 hrs
85 9
Page 12 of 12
Appendix E
NPS Chemical plant that needs to be decommissioned
LPG ignition system decommissioning when Confirmation amp monitoring amount to contend with Removal dateComplete Target removal date
2 x 200kg cylinders owned by origin Disconnect cylinders and connect nitrogen bank of cylinders to purge pipework after units shutdown Cylinders removed - no monitoring required
1 and half cylinders
Arrange for shift to open aux boiler and each burner separately monitor pipework for explosive gases
Get origin to remove cylinders from site 21062016
Ammonia Dilution system
20 m3 tank and filling pipework
Use as much as possible in normal operation Remnants in tank while units still operating dilute with copious amounts of sea water and drain to contaminated drains Refill tank with demin water and drain to contaminated drains system amd the refill to above pump take off level Pump water through filling pipework to dosing tanks
in week before units shut down Empty tank and monitor for ammonia and pH
1 to 2 m3 25 to 5 NH3 21062016
2 x transfer pumps and transfer pipe to unit 1 unit 2 and boiler filling pump
When dilution tank decontaminated and filled with fresh water pump water through dosing pumps and lines for 20 minutes
in week before units shut down Empty tank and monitor for ammonia and pH
21062016
3 x 2000 litre dosing tanks and associated pumps and dosing lines
use as much during normal service and then drain with diltion water to the contaminated drains system Refill with fresh water and drain to contaminated drains Boiler dosing tank can be decommissioned in week before units come off
one at a time as units come off Empty tank and monitor for ammonia and pH
3 x 200litres 025 NH3 21062016
Hydrogen banks and pipework into station
8 banks of hydrogen BOC to remove after units off Cylinders removed - no monitoring required
21062016
stable flow controllers and hydrogen pipework purged when generator is purged with carbon dioxide after units off purged monitor for explosive gases 21062016
Water Treatment Plant including Reverse Osmosis plant 98 sulphuric acid
2 x bulk chemical storage tanks (max vol 36m3)
Use as much as possible during normal service Pump down from either drain or 1inch take off until level below man hole Take off man hole cover and pump out sulphuric acid until only remnants remain Open drain to bund and wash tank out to decontaminate and then release to effluent bulk tank with diluted sodium hydroxide remnants to neutralise the mixture before pumping to ash pit and ash pond
one before units come off and the other shortly afterwards
empty tank - monitor effluent for pH 3 to 4 m3 98 H2SO4 8062016
2 x measure vessels leave empty after last regeneration and then remove bottom flange and remove standpipe and flush with water
one before units come off and the other shortly afterwards
montor pH in drain 1 or 2 litres 98 H2SO4 8062016
pipework disconnect and flush with water one before units come off and the other shortly afterwards
Monitor pH in drain lt1 litre 98 H2SO4 8062016
2 x 20 sulphuric acid dilution tanks and pipework
run tank out during last regeneration and drain remnants to effluent system Disconnect pipework and flush with water
one before units come off and the other shortly afterwards
Monitor pH in drain 2 x 200litres 20 H2SO4 8062016
50 sodium hydroxide
2 x bulk chemical storage tanks (max vol 36m3)
Use as much as possible during normal service Pump down from either drain or 1inch take off until level below man hole Take off man hole cover and pump out sodium hydroxide until only remnants remain Open drain to bund and wash tank out to decontaminate and then release to effluent bulk tank with diluted sulphuric acid remnants to neutralise the mixture before pumping to ash pit and ash pond
one before units come off and the other shortly afterwards
empty tank - monitor effluent for pH 3 to 4 m3 50 NaOH 23062016
2 x measure vessels leave empty after last regeneration and then remove bottom flange and remove standpipe and flush with water
one before units come off and the other shortly afterwards
montor pH in drain 1 to 2 litres 50 NaOH 23062016
pipework disconnect and flush with water one before units come off and the other shortly afterwards
montor pH in drain lt 1 litre 50 NaOH 23062016
50 sulphuric acid IBC run out product in service or send back to ace chemicals also could put in acid dilution tank and use in regeneration of cation resin If only remnants drain to contaminated drains system
in week before units shut down montor pH in drain lt 500litres 50 H2SO4 8062016
42 Ferric chloride IBC run out product in service or send back to ace chemicals also if only remnants remain drai in week before units shut down montor pH in drain lt 5 Litres FeCL3 42 21062016
10 Sodium metabisulphate tank Bubble air through solution for a cou[ple of days until sodium metabisulphite forms sodium sulphate and then drain to contaminated drains system
in week before units shut down montor pH and ORP in drain lt200 litres NaSO4 or SMBS 20062016
antiscalant tank run out in normal service and drain residue to contaminated drains system in week before units shut down Monitor Phosphate 20 litres antescalant 20062016
2 x anion 2 x cation and 2 x mixed bed vessels ion exchange resin
pump out resin to storage truck to be removed from site - Cations 2 x 7000litres Anions 2 x 5400 litres Mixed beds 2 x 1250 litres of ion exchange resin
one train before units come off and the other shortly afterwards
27300 litre ion exchange resin 14062016
Condensate polishers
5 x ion exchange resin charges pump out resin to storage truck to be removed from site =gt Adelaide approx 6200 litres per charge
3 resin charges when first unit is in non-return to service period and other 2 when second unit is off
31000 litre ion exchange resin 14062016
Sulphuric acid measure vessel and Sodium hydroxide measure vessel
leave empty after last regeneration and then remove bottom flange and remove standpipe and flush with water
in week before units shut down montor pH in drain 1 or 2 litres 98 H2SO4 and 50 NaOH soln
8062016
pipework (concentrated chemical) disconnect and flush with water in week before units shut down montor pH in drain lt1 litre 98 H2SO4 and 50 NaOH soln
8062016
Sulphuric acid dilution vessel and pipework run tank out during last regeneration and drain remnants to effluent system Disconnect pipework and flush with water
in week before units shut down montor pH in drain 250litres 20 H2SO4 8062016
Ferrous Chloride
12 ferrous chloride tank pump out ferrous chloride for disposal and wash out remnants to contaminated drains system with copious dilution
in week before units shut down montor pH and iron in drain 5 m3 12 FeCL2 soln 21062016
dilution 1-2 solution tank Use as much as possible during normal operation and flush out remnants of tanks to contaminated drains system
in week before units shut down montor pH and iron in drain 15m3 1 - 2 soln 21062016
Carbon dioxide
36 G size cylinders Use carbon dioxide up in generator purge and purging hydrogen lines After Units off Could start one unit purge in last week of running
21062016
Pipework break pipe work at various locations to release carbondioxide After Units off Could start one unit purge in last week of running
21062016
Generators
2 x hydrogen in generator space Displace hydrogen with carbon dioxide at ealiest time possible and then purge with air After Units off Could start one unit purge in last week of running
orsat check 21062016
Chlorine plant 1000litres of 2 to 3 hydrochloric acid solution
Drain to contaminated drains system with copious waterseawater dilution in week before units shut down montor pH in drain 5000 litres lt1 HCl solution 21062016
Auxillary boiler dosing tank 60 litres BWT dosing solution Neutralise with acid or dilute with lots of water and into contaminated drains system in week before units shut down montor pH in drain 40 litres BWT 21062016
Workshop and laboratory chemicals amp hazardous substances Various chemicals solvents oils and Greases Arrange disposal by contractor After shut down 27062016
Bottled Gas
Various Cylinders on site Arrange transport to BOC After shut down Cylinders removed - no monitoring required
21062016
SF6 amp Freon in GCB amp transformers and Spare SF6 Freon cylinders SF6 and Freon in Generator circuit breaker and transformers and cyliders of SF6 and Freon in workshops and store compound
Arrange recovery and disposal by contractor After Shut down 21062016
Radio active substances (XRF etc etc) Pulsed XRF 2 x hand held XRF and Benchtop XRF in Laboratory
Oxford Instruments model X-Met 3000T Tube serial no 702033 (EPA no 21237) has been disabled Hand held pulsed and benchtop XRF to be sold
After Shut down 1102016
Petrol Tank underground storage NPS Store Get pumped out for Macmahons to remove
Timeframe After Shutdown
Target date 30062016
Status Complete
Diesel tanks Fire diesel tanks Cat Generator Tank
Get Pumped out Get Pumped out
Late June Late June
30062016 30062016
Complete Complete
Fuel Oil Aux Boiler Main fuel oil tank PPS fuel oil tank Flush fuel oil system including PPS to NPS pipeline
Get pumped out and cleaned Get pumped out and cleaned Clean out
Get pumped out and cleaned
After Shutdown After Shutdown After Shutdown
After Shutdown
31082016 31082016 31082016
31082016
Emptied - to be cleaned Emptied - to be cleaned Emptied - to be cleaned
Emptied - to be cleaned
Oils Plant - all but transformers and turbines Workshop and stores
Pump out - fans air heaters BFPs ID fans Gr Fans Mills Deashers and ploughs collect together on shut down
After Shutdown After shut down
31082017 31082017
Transformers degass- Remove Freon gas Coal line transformers site transfromers
Reclaim at shut down Reclaim when de-energised
After shut down June
31082017 31082017
Generator circuit breakers remove SF6 Generator circuit breakers SF^ in store
reclaim gas from circuit breakers Dispose of gas cylinders
after shut down after shut down
31082017 30062016 Complete
Batteries Various NiCad Lithium NiMetal hydride etc Lead acid in disposal area Battery room batteries
collect together on shut down collect together at shutdown McMahons
After shut down After shut down After shutdown
30062016 30062016 30062016
Complete Complete Complete
Mercury Globes and mamometers etc Collect together on shutdown After shutdown 30062016 Complete
Greases and permalubes Workshop and stores Collect together on shutdown After shutdown 31082017
Appendix E1
NPS Chemical plant that needs to be decommissioned
Item number decommissioning when amount to contend with
Ammonia Dilution system
1 NPS ammonia dilution 20 m3 tank Drain tank and flush out in week before units shut down 1 to 2 m3 25 to 5 NH3
2 3 x 2000 litre dosing tanks at NPS pump out remnants one at a time as units come off 3 x 200litres 25 NH3
Water Treatment Plant including Reverse Osmosis plant
98 sulphuric acid
3 2 x bulk chemical storage tanks (max vol 36m3)
at NPS Pump out tank and decontaminate Remove built up sludge
one before units come off and
the other shortly afterwards 3 to 4 m3 98 H2SO4
4 2 x 20 sulphuric acid dilution tanks at NPS pump out tank and decontaminate one before units come off and
the other shortly afterwards 2 x 200litres 20 H2SO4
50 sodium hydroxide
5 2 x bulk chemical storage tanks (max vol
36m3) at NPS Pump out tank and decontaminate Remove built up sludge
one before units come off and
the other shortly afterwards 3 to 4 m3 50 NaOH
6 50 sulphuric acid IBC at NPS Pump out tank and decontaminate Remove built up sludge in week before units shut down lt 500litres 50 H2SO4
7 10 Sodium metabisulphate tank RO plant NPS pump out tank and decontaminate in week before units shut down lt200 litres NaSO4 or SMBS
8 antiscalant tank RO plant NPS pump out tank and decontaminate in week before units shut down 20 litres antescalant
9 2 x anion 2 x cation and 2 x mixed bed vessels
ion exchange resin at NPS
pump out resin to storage truck to be removed from site - Cations 2 x
7000litres Anions 2 x 5400 litres Mixed beds 2 x 1250 litres of ion exchange
resin
one train before units come off
and the other shortly afterwards 27300 litre ion exchange resin
Condensate polishers
10 5 x ion exchange resin charges at NPS pump out resin to storage truck to be removed from site =gt Adelaide approx
6200 litres per charge
3 resin charges when first unit is
in non-return to service period
and other 2 when second unit is
off
31000 litre ion exchange resin
11 Sulphuric acid dilution vessel at NPS pump out tank and decontaminate in week before units shut down 250litres 20 H2SO4
Ferrous Chloride
12 NPS 12 ferrous chloride tank pump out tank and decontaminate in week before units shut down 5 m3 12 FeCL2 soln
13 NPS dilution 1-2 solution tank pump out tank and decontaminate in week before units shut down 15m3 1 - 2 soln
Auxillary boiler dosing tank
14 NPS AUX BLR - 60 litres BWT dosing solution pump out tank and decontaminate in week before units shut down 60 litres BWT
Workshop and laboratory chemicals amp hazardous substances
15 Various chemicals solvents oils and Greases
at NPS remove workshop chemicals oils etc After shut down manifest
16 Various chemicals paints amp glues at NPS Remove Site store oils and chemicals After shut down manifest
Petrol Tank underground storage
17 NPS Store Get pumped out for Macmahons to remove tank After Shutdown
Max 115 Kilolitres hopefully
done to lt1000 litres
Diesel tanks
18 NPS and PPS Fire diesel tanks Move to main diesel tank near tower C Late June 3700 litres max
19 NPS Cat Generator Tank Move to main diesel tank near tower C Late June 4700 litre max
Fuel Oil
20 NPS Aux Boiler tank Pump out and Clean After Shutdown 5000 litres max
21 NPS Main fuel oil tank Pump out and Clean After Shutdown 250000 litres max lt50000 litres
22 PPS fuel oil tank Pump out and Clean After Shutdown lt10000 litres
23 fuel oil Pipe from delivery point to NPS and
PPPS service tanks clean out line After Shutdown
Unkown
24 fuel oil Pipe from PPS service tank to PPS LP
and HP oilheater and return line Clean out line After Shutdown
Unkown
25 PPS fuel oil lp heater X 2 Clean out heater After Shutdown Unkown
26 PPS fuel oil hp heater X 2 Clean out heater After Shutdown Unkown
27 PPS fuel oil lines to burner and back to heaters clean out line After Shutdown Unkown
28 NPS fuel oil heaters x 2 Clean out heater After Shutdown Unkown
29
NPS fuel oil lines to transfer pumps service
pumps lines to burners and back to main oil
tank NPS unit 1 and 2
Clean out lines After Shutdown
Unkown
Oils
30 NPS Turbine oils from unit 1 and 2 Pump out and dispose After Shutdown 32860 x 2
31 NPS unit turbine oil tanks and oil conditioners clean out After Shutdown
32 NPS turbine oil transfer lines and storage tank clean out After Shutdown
33 NPS mills x 12 ground floor collect together on shut down After shut down 1800 x 12
34 NPS Primary and secondary air fans above
ground x 2 Pump out and dispose
After Shutdown 770 x 4
35 NPS Primary air and secondary air heaters lube
oil X 2 - above ground level Pump out and dispose
After Shutdown 425 X 4
36 NPS Primary air and secondary air heaters
gearbox oil X 2 - above ground level Pump out and dispose After Shutdown 80 x 4
37 NPS Boiler Feed pumps grbx tank amp cooler X 4 Pump out and dispose After Shutdown 2800 x 4
38 NPS Deasher x 2 hydraulic oil Pump out and dispose After Shutdown 60 x 2
39 NPS Coal line ploughs x 2 Pump out and dispose After Shutdown 450 X 2
40 NPS ID fans x 4 Pump out and dispose After Shutdown 770 x 4
41 NPS GR fans x 2 Pump out and dispose After Shutdown 500 x 2
42
NPS Conveyer gearboxfluid drives 1(x2) 2(x2)
3 7(x2) 9(2)11(x2) - above and below ground
level
Pump out and dispose
After Shutdown
130 to 372 mainly in 150litre
range
43 NPS compressors x 3 Pump out and dispose After Shutdown 100 x 3
44 NPS Cat generators x 2 Pump out and dispose After Shutdown 200 x 2
45 Workshop storages at NPS collect remove from site and dispose After Shutdown y
46 Stores Shed oils and grease at NPS remove from site and dispose After Shutdown lots
47 waste oil collection area at NPS remove from site and dispose After Shutdown 12000 + litres
Transformers oils
48 NPS transformer - 2 x stepup Fuji Remove oil late june 2x 53000litre
49 NPS transformer - 2 x unit Wilson Remove oil late june 2 x 13000 l
50 NPS transformer - 2 x station tyree Remove oil late june 26000
51 Fuel oil unloading Remove oil late june 600
52 Town water Remove oil late june 600
53 Spare step up at NPS Remove oil late june 50000
54 PPS PPS Met vickers step up x 4 Remove oil late june 4 x 69000
55 PPS Ferranti house Remove oil late june 36000
56 PPS Unit Remove oil late june 4 x 4000
57 PPS Aux Remove oil late june 4 x 700
58 PPS GP Remove oil late june 1400
59 PPS ASH Remove oil late june 1400
60 PPS coal line starter Remove oil late june 2100
61 Spare unit at PPS Remove oil late june 1300
Batteries
total 565900 litres
62 Various NiCad Lithium NiMetal hydride etc at N remove from site and dispose After shut down Unknown
63 Lead acid in disposal area at NPS remove from site and dispose After shut down Unknown
64 NPS Battery room batteries remove from battery room and put on pallet (outside) late june Unknown
65 NPS Battery room Batteries Remove from site late june Unknown
Mercury
66 Globes and mamometers etc at NPS remove from site and dispose After shutdown Unknown
Greases and permalubes
67 Workshop and stores at NPS remove from site and dispose After shutdown Unknown
Coolant
68 Cat diesels NPS Pump out and dispose late june 100 litre
69 PPS fire diesel pumps Pump out and dispose late june 100 litre
Appendix F
D I
I
McMAHON SERVICES a allestrin Mi=iMMi
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
JSEA Number AD 010
Project and Organisation Details
Project Site Port Augusta Power Station Project Manager Ross Fitzgerald Sign Phone 0439 034 900
Title CARTING MATERIAL FROM BORROW PIT CARTING ASH FROM
DISCHARGE LEVYrsquoS TO DEMO PLANT SITE Site Supervisor
Mick Oster Sign Phone
0400 923 758
Job Task Excavation of material from borrow pit or ash from discharge levyrsquo carting
material to demo plant site driving dump trucks on road way to demo site
Site Safety Advisor Louis Kokkinos Sign Phone 0409 222 087 1
Principal Contractor Flinders Power
Job Number 5201750 JSEASWMS Creation 10 Revision Number 1 Has a Project Risk Assessment Register been Developed for the Project
Implement the PRAR control measures and place into this JSEASWMS
Legislative Compliance Review Information referenced during the JSEA Planning ndash Record applicable document reference number and name below
Legislation Codes of Practice Standards Emergency Plan Procedures SWIrsquos Engineering Work Cover SDS Other
WHS Act 2012
WHS Regulations 2012
CoP Excavations Cop Mobile Plant
Project Emergency Plan
SWI 0400 Plant and equipment
SWI 0100 Manual handling
SWI 0327 Selection of Hand
Protection
Traffic mngmt amp Site movement of plant Environmental protection Act 1993 ndash EPA license 13006
High Risk Work Structural Collapse ChemicalFuelRefrigerant Lines Work in Tunnel Explosives
Fall from Heights gt 3m Demolition of Structures Energised Electrical Installations Mobile Plant Work Involving Diving
Disturbance of Asbestos Pressurised Gas Pipes Mains Contaminated Flammable Atmosphere Traffic Tilt-upPrecast Concrete
Excavation gt15m Telecommunication Towers Extremes of Artificial Temperature Confined Spaces Risk of Drowning
Qualifications Licenses Plant Equipment
LE Excavator ST Service Truck HS Dump Truck HR Truck Excavator Moxy truck Fuel Trailer and Service Truck Water cart
Permit Tick Required
Asbestos Daily Diary (F062)
Confined Space (F603)
Demolition (F285)
Excavation Penetration (F636)
Excavation Entry (F166)
Hot Work (F630)
Lifting Operation - Lift (F189)
Working at Heights (F676)
PPE Tick Required
Important
(1) Persons within 10m of noisy plantprocess must wear Hearing PPE
(2) Hand protection must be selected via SWI327 - manual tasks
(3) Double eye protection to be worn when grinding
IF PRINTED -Page 1 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin Mi=iMMi
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Potential Hazards This list may not identify all potential hazards present Visit the job site to ensure all hazards are identified and implement appropriate control measures in the JSEASWMS
Fire Ignition Sources
Will hot work be conducted Implement Fire prevention strategies
(Complete the Permit)
Refer to SWI344-Completing a Hot Work Permit Standard S023-Hot Work
Permit S002-Managing Risk of Risk in Fire Ban Seasons
Hazardous Substances Will work task involve contact with any Hazardous Substances
Refer to the SDS and consider specialised PPE precautions
Refer to SWI099-Accessing SDS SWI123-Handling Hazardous Subs
Environmental Impact- Vibration Noise Will vibration or noise emission extend beyond the project perimeter
Is vibration monitoring from demolition process especially when working near
heritage type buildings (Check the PRAR - F224)
Refer to SWI147-Environmental Management - Noise amp Vibration Control
Hazardous Manual Task
Will the worker be lifting moving objects or material
Workers to select controls measure based upon HIRAC
Correct lifting techniques Workers to stretch before and during task
Refer to SWI100-Hazardous Manual Tasks SWI102-Stretching Techniques
Services Will service isolation disconnection for plantequipmentinfrastructure
Any overheadunderground services within work area
Refer to SWI704-Service Isolation - Lock out Tag Out
Environmental Impact- Decontamination of Plant Equipment Will Plant Equipment and PPE require decontamination at the end of each
day and or when exposed equipmentplant is to leave the
asbestoscontaminated area
Refer to SWI147-Environmental Management - Noise amp Vibration Control
Excavations
Does the task require an excavation to be dug
Check for services prior to excavation (Complete the Permit)
Refer to Standard S053 - High Risk Construction Activity- Excavations
Emergency Preparedness Establish an emergency plan for the task
Refer to SWI082-Emergency Planning for Project Sites
Environmental Impact - Dust Will the task generate dust or is there a requirement for disposal of hazardous
waste
Refer to SWI148-Environmental Management - Dust Control
Working at Heights amp Falling Objects
Will the task require workers to work at height or around open
penetrations voids Are they trained to perform the task
Delineate areas where workers amp others may pass (Complete the Permit)
Refer to SWI 0085 - Prevention of Falls - Planning
Plant Machinery amp Equipment Will the plant work area be delineated away from other works
Is the operator ticketed licensed for this type of equipment plant
Refer to Standard S055 - HRCA - Safe Work Zone - Traffic Management SWI-
026-TicketLicencesCompetencies to Perform Work
Environmental Impact - Haz Substance Storage Spills Is there potential to release pollutants to drainrsquos marine waterways ground
atmosphere
Consider if any potential spill sources exist at the work area
Consider the need for bunds drip trays spill blankets absorption etc
Refer to SWI149-Environmental Management - Soil Erosion Drainage Management
Slip amp Trip Hazards
Will the task produce potential slip and or trip hazard (Material
Equipment)
Implement housekeeping strategies
Lifting Operations (Crane Lifts) Consider if work task involves crane lifts
Ensure a lift Permit has been conducted (Complete the Permit)
Refer to Lifting Operation - Lift Permit (F189)
Environmental Impact - Waste Disposal Will the task create prescribed waste requiring special disposal
Refer to SWI152-Environmental Management - Waste and Recycling
Task Security Nearby Works
Will barriers delineation be required to exclude personnel or vehicles
from the work area
Refer to Standard S051 - HRCA - Safe Work Zone - Site Security
Cuts and Abrasion Is there a risk of cuts abrasion
Consider task separation or adequacy of PPE
Refer to SWI327-Selection of Hand Protection
Environmental Impact - Cultural Heritage Could the task uncover indigenous or European artefacts
Could the task impact on heritage buildings structures
Refer to SWI154- Managing Cultural Heritage Protocol Uncovering Artefacts
Customer and Surrounding Property
Consider the potential risk to neighboursrsquo property
Consider potential damage to customer property nearby
Refer to Standard S051 - HRCA - Safe Work Zone - Site Security
Traffic Management Consider how construction traffic will access and egress the workplace
in a safe manner
Refer to Standard S055 - HRCA - Safe Work Zone - Traffic Management
Asbestos Consider if personnel may be exposed to asbestos during this task
If unsure check the Asbestos Register
Refer to SWI 0349- Planning and Asbestos Removal Task SWI 0233 Friable
Asbestos Personal Decontamination Process
Weather Conditions Working Outdoors
Does the weather pose a risk to a workerrsquos health Safety or the environment Consider the ambient conditions associated hazards Consider precautions to prevent exposure to
heatcold
Noise Will the work create higher noise levels Consider the need for hearing protection in the work area
If hearing PPE is deemed as required then all workers in a 10-metre radius (minimum) of the noise source must wear hearing PPE
IF PRINTED -Page 2 of 9 104 Exploration Dr Karratha UNCONTROLLED 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
-
-
-
-
the hazards
C V 0 Ugt ts
Level2 e ~
Ugt 0 Substi tute the hazard with someth ing co
Q) b safer E J e co Isolate the hazard from people Ugt
C -0 8 C Reduce the risks through engineering co
s contro ls a 1ij ~ Q)
V c s a _]
ai ai Level3 0 gt Q)
_J
Reduce exposure to the hazard
V using administrative actions
V Use personal protective equipment
LOWEST L E A S T
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Hazard Analysis and Control Worksheet
Step 1 Consequences (Severity)
1 Insignificant bull Cause a near miss needs to be reported
bull Limited impact to a local area but no long-term effects
2 Low bull Injury requiring First Aid treatment and or short term discomfort
bull Localised short to medium term impact to the environment
3 Moderate
bull Potential for injury resulting in medical attention
bull Localised medium to long term impact to the environment
bull Damage to plant property
4 Major bull Serious injury Long term disability
bull Widespread or off-site release medium to long term impact
bull Major financial loss damage to plant Loss of production capability
5 Extreme
bull Potential to be fatal Permanent disability
bull Release off-site with detrimental widespread irreparable environmental damage
bull Destruction of property or plant Huge financial loss
Step 4 Action Plan
Low Minimal risk monitor where work changes
Moderate Some action may be required
Supervisor to determine and monitor
High Activity Must be reviewed by Project Manager and have additional risk controls built into the SWMS and work procedure
Extreme
Activity to be re-planned andor re-designed
Must reduce risk immediately ndash highest priority Work is not commencing until appropriate controls are in place
Hierarchical of Controls
Control measures must be ranked from the highest level of protection and reliability to the lowest This ranking is known as the hierarchy of control The higher order controls must always be considered first
If residual risks are ranked as lsquoHIGHrsquo the team shall determine the adequacy of controls and consider further risk reduction strategies (Refer to step 4 - Action Plan)
Step 2 Potential (Likelihood)
A Certain to Occur
Expected to occur in most circumstances
B Likely Will probably occur in most circumstances
C Possible Might occur at some time
D Unlikely Could occur at some time
E Rare May occur only in exceptional circumstances
Step 3 Risk Matrix Consequence
Insignificant Low Moderate Major Extreme Level 1 Level 2 Level 3 Level 4 Level 5
Lik
eli
ho
od
Certain to Occur (A) H H E E E
Likely (B) M H H E E
Moderate (C) L M H E E
Unlikely (D) L L M H E
Rare (E) L L M M H
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5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
bull
-iW=iMdbullMi McMAHON q a allestrin SERVICES 1ntract ft_ -_ __
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Job Safety Environmental Analysis (JSEA) Safe Work Method Statement
Step Process Steps Potential Hazards Inherent Hazard Control Measures Residual No List the steps needed to do the Against each step list potential hazards that Risk For each hazard identify control measures to eliminate or minimise the risk of Risk Action by
job in the sequence to be done could cause injury when the jobrsquos done Rating injury (hierarchy of controls) Rating (Print name of person)
1 Pre-start talks with Michael Atkinson Ben Knoop Louis Kokkinos and Mick Oster to determine dumping area within live demo plant
Miss communication between civil and demo team causing work crew overlap hazards such as collision with demo plant personnel or LV
H Consultation in site office dumping area in live demo plant to correctly locate dumping zone Visually inspect demo plant and personnel near dumping zone Identify the need to use 2-way communications on channel 27
L Michael Atkinson
Louis Kokkinos
Mick Oster
Ben Knoop
2 Establish one way hauling routes for dump truck drivers ndash Pre-drive route with Mick Oster Louis Kokkinos and Ben Knoop
Interaction or collision with other plant people or vehicles in the area or on route Demo plant LV or personnel unclear or unaware of one-way route
H Pre-drive route and communicate traffic management plan to dump truck drivers Ensure dump truck drivers understand one-way route by providing them with guided tour and escort Provide map of route to drivers Drivers must adhere to traffic management plan Drivers must not drive on other road ways within live demo plant Dump truck drivers must use 2-way radio to announce arrival and departure at live demo plant on haul roads and dumping area
L All personnel signed onto this document
Dump truck drivers speeding on haul E All dump truck drivers must not exceed MAX 20 Kmh in demo area H All personnel signed roads or making contact with overhead at all times Dump truck drivers must assume that over lapping demo onto this document hazards such as light poles or electrical work crew will not expect them to be in their work zone and should lines prepare to stop or give way at any time Dump truck drivers must
not raise tubbed or unload in any area other than designated areas as per attached map
Demo crew not aware of us in their work H Demo supervisor must brief work crew of civil and demo crew L Demo crew and zone or one-way haul roadsroute - interactions and provide work crew and plant operators with map of team Interaction of heavy light vehicle resulting civildump truck hauling roads and one-way areas Demo work crew in accident causing injury plant damage plant LVs and personnel must avoid civil haul road areas if
practicable to do so
3 Civil work crew within demo site
High risk works associated with movements of mobile plant contact with plant and personnel crush injuryrsquos or the potential for death
E Dump truck operators must not exit cabins in active demolition areas unless itrsquos for an emergency or vehicle has broken down Drivers must wear hard hats and safety glasses if in the active demolition site 2-way radio to be used to communicate emergency situations or any requirements to exit truck cabins Existing muster points apply for civil team
M All personnel signed onto this document
4 Suppressing dust Dust arising from borrow pit activities hauling on roads or carting or excavating levy ash creating health environmental damage or concerns
H Implementation of 3 level Trigger Action Response Plan must be utilised when monitoring dust levels during ongoing works Use of water cart on haul roads and any other areas where dust suppression is required
L All personnel signed onto this document including water cart operator
IF PRINTED -Page 4 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Step No
Process Steps List the steps needed to do the job in the sequence to be done
Potential Hazards Against each step list potential hazards that
could cause injury when the jobrsquos done
Inherent Risk
Rating
Hazard Control Measures For each hazard identify control measures to eliminate or minimise the risk of
injury (hierarchy of controls)
Residual Risk
Rating Action by
(Print name of person)
Ash material drying out causing dust to become airborne and leave the site boundary causing environmental harm
H Constant monitoring of area to ensure material is wet down and suppressed Capping material to be placed on ash to prevent becoming airborne and suppressed with water as necessary to prevent dust becoming fugitive Direct dumping and immediate spreading to avoid stockpiling of ash causing unnecessary dust
L All personnel signed onto this document including water cart operator
5 Dumping ash material in PPS A station basement area Excavating ash from levee
Dumping on uneven surface causing risk of tray tipping over
H No dumping on uneven surface unless the use of spotter and the cab is not articulated Always tip with the cab and tray in line to avoid tipping tray Assess ground conditions and drive to conditions at all times
L All personnel signed onto this document
Slumping of ramp levee and stockpile causing material to give way
H Operators to check condition of ramp levee and stockpile to assess area for cracking slumping and soft spots that could cause machine to become unstable
L All personnel signed onto this document
Tipping material without a tip head to back onto
H Operators are to follow instructions from the dozer excavator operator and are to tip short with a spotter so the dozer can push the material Dump truck operators must not tip short without the use of the spotter to guide into position via verbal or hand signals
L All personnel signed onto this document
Tipping over basement edge without tip head causing potential drop of machine and injury to personnel
H Operators to use established ramp at south end of basement as tip location to eliminate tipping over live edge Operators are to tip short with a spotter so the dozer can push the material into basement
L All personnel signed onto this document
IF PRINTED -Page 5 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
I I I I I I
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Step No
Process Steps List the steps needed to do the job in the sequence to be done
Potential Hazards Against each step list potential hazards that
could cause injury when the jobrsquos done
Inherent Risk
Rating
Hazard Control Measures For each hazard identify control measures to eliminate or minimise the risk of
injury (hierarchy of controls)
Residual Risk
Rating Action by
(Print name of person)
IF PRINTED -Page 6 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
D
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
How to Complete the JSEASWMS Process
1 When developing a JSEASWMS refer to the applicable Legislation Code of Practice and Company Standards 4 Each of the hazards identified must be risk rated hazard control measures defined precautions and
and Safe Work Instructions (Documents referenced in this JSEASWMS must be recorded on page one) equipment must be identified to reduce the risk
5 Responsibilities are allocated to each control measure defined in the JSEASWMS 2 The job is to be broken up into individual process steps 6 All workers involved in the task must review the document and it must be accepted by workers signing 3 For each step the potential hazards are identified
this JSEASWMS form
NOTE This is a legally binding document to which all workers must adhere
Approval
I the undersigned Supervisor confirm that I have checked all qualifications provided and verify that they are applicable and current I have also ensured that all inductions have taken place and that all tools and equipment are properly maintained and safe to use I have issued all relevant permits and have ensured to the best of my ability that the work area is safe and that the work will not damage any property or injure any persons
Supervisor Name Supervisor Signature Date 9th August 2017
Development amp Review
Initiators of JSEArsquos are responsible for consulting with supervisors engineers or other persons directly in charge of the work and any other personnel involved in the execution of the task (as appropriate) for input into the JSEASWMS during the development and review stages
Other persons may be consulted for technical advice or review of the JSEA to ensure that the proposed measures are effective and workable (Record names below)
The JSEASWMS shall be reviewed
(1) At the commencement of a new task (2) If a task changes (3) If a hazard been identified (4) At the JSEASWMS three-month anniversary
Developed Consulted By Reviewed By
Date 7th August 2017 Date 8th August 2017 Reason for review Change of TMP map and inclusion of TARP
Name
Name
Louis Kokkinos
Ben Knoop
Position
Position
Site Safety Advisor
Site Civil Engineer
Name
Name
Louis Kokkinos Position
Position
Site Safety Advisor Added step 4
Changed TMP map on last page
Name Mick Oster Position Senior Site Supervisor Name Position
Name Jamie Kirk Position Site Safety Advisor DEMO Name Position
IF PRINTED -Page 7 of 9 104 Exploration Dr Karratha UNCONTROLLED 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
JSEASWMS Sign off and Acceptance of Proposed Work Method and Associated Responsibilities
bull I the undersigned confirm that I have been consulted regarding the above JSEASWMS and that its content is clearly understood
bull I also confirm that my required qualification(s) etc to undertake this activity isare current and that I am competent to complete the work safely and without risk to my own or the health and safety of others
bull I clearly understand that the control(s) in this JSEASWMS must be applied as documented otherwise work is to cease immediately and I will ensure that the work area is made safe as far as is reasonably practicable
No Surname First Name Classification Employed by Signature Date
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20 bull
bull ASH D AM
bull ENTRANC E R OAD TO AUGUSTA POWER STATION
IF PRINTED -Page 8 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
bull
bull BORROW PIT
bull M
M
dg h
fff
fff
IF PRINTED -Page 9 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
Appendix G
Power
Augusta Power Stations
Dust Management Plan
Demolition and Site Rehabilitation
Flinders Power May 2018
Title Names Signatures Date
Approval Facility Manager APS
Approval Program Manager ndash Flinders Sites
Document History
Rev Date Amended by Description of Changes
Draft Initial Draft Version
Rev 1 24082016 Updated and changed to cover Make ndashSafe Period
Rev 2 09092016 Updated and changed to cover Demolition Period
Rev 3 05102016 EPA recommendations and corrections incorporated
Rev 4 05102016 Ash Storage Area dust management options modified
Rev 5 05112016 Final version incorporating EPA feedback
Rev 6 01022017 Revised following dust event of 1st and 2nd January 2017
Rev 7 03032017 Revised to address EPA feedback of 20th February 2017
Rev 8 09082017 Revised to address excavation transport and use of ash for backfill
Rev 9 08122017 Revised to incorporate changes as per EPA letter of 6 December 2017
Rev 10 03012018 Revised to address proactive watering of the former coal stockpile
Rev 11 25052018 Revised to address the capping of the former coal stockpile area
Rev 12 15618 Revised to add seeding of the former coal stockpile area
Printed copies are uncontrolled Please ensure you are referring to the most current version 1
AindersPower
Contents 1 Introduction amp Purpose 3
2 Background 4
3 Setting 5
Stockpile 5
Ash Storage Area 5
Coal Conveyor System 6
Coal Storage Bins 6
Roadways 7
Demolition Activities 7
Utilities Available During Demolition 8
5 Environmental Conditions 14
EPA Notification of Process Changes 14
Licence Conditions 14
Ambient Dust Monitoring ndash TSP amp PM10 17
Speciation 20
6 Dust Management Plan (DMP) 21
Plan Stakeholders - Roles and Responsibilities 21
Implementation and Control Actions 23
Table 1 Aspect and Control Action 1 Coal Stockpile Operations 24
Table 2 Aspects and Control Action 2 Ash Storage Area Management 26
Table 3 Aspects and Control Action 3 Coal Conveyor System and General Site 28
Table 4 Aspects and Control Action 4 Site Roads (General Conditions) 29
Table 5 Aspects and Control Action 5 Demolition Activities 30
7 Ash Storage Area ndash Dust Management 32
Whole of ASA Dust Suppression Treatment 32
Trigger Action Response Plan ndash Ash Storage Area 32
8 Former Coal Stockpile Areandash Dust Management 37
Trigger Action Response Plan ndashStockpile Revegetation 37
9 Dust Monitoring and Evaluation 39
10 Community and Stakeholder Engagement 40
101 Complaint Management 41
References 42
Appendices 43
Printed copies are uncontrolled Please ensure you are referring to the most current version 2
AindersPower
1 Introduction amp Purpose Flinders Power operates the Flinders assets which comprise the Northern and Playford Power Stations in Port Augusta (known collectively as the lsquoAugusta Power Stationsrsquo (APS)) as well as the Leigh Creek Coal Mine Flinders Power also formerly maintained a dedicated rail line between Leigh Creek and Port Augusta
Flinders Power is strongly committed to sound environmental management as demonstrated within the board-endorsed Environment amp Community Policy The Policy states a commitment to partnering with the communities in which Flinders Power operates and a focus on continual improvement of environmental performance
The nature of the operation if poorly managed has the potential to create fugitive dust emissions which may adversely impact on the amenity of the local community Therefore the objectives of dust control are to
1 Minimise and control the impact of Flinders Power closure activities on air quality and emission of dust from site operations
2 To ensure compliance with EPA Licence requirements
3 Maintain environmental amenity and a strong relationship with the local community and regulatory authorities
To achieve these objectives a Dust Management Plan (DMP) has been formed The objectives of the DMP are to
bull Nominate potential sources of dust emissions
bull Describe methods and responsibilities for dust management controls to minimise the potential for impacts to the environment
bull Clearly define the responsibilities and actions required to respond to environmental incidents
bull Outline the methods to communicate and engage with the local community in relation to dust management and
bull Outline the monitoring and reporting arrangements to ensure ongoing compliance with the DMP
Scope This plan applies to activities covered under
bull EPA Licence 13006 (Northern amp Playford Power Stations)
This document is also part of the site Environmental Closure and Post Closure Plan where specific activities and responsibilities for performing dust management measures are assigned to the appropriate parties During the site demolition process Flinders Power has specific responsibility for areas not covered by the plant demolition project These areas the Ash Storage Area and the Coal Stockpile Pad are subject to separate rehabilitation and revegetation projects covered in the Environmental Closure and Post Closure Plan
Dust management activities involved with the decommissioning and demolition of the plant and structures on site are covered in the demolition plans developed under the Project Alliance Agreement
Printed copies are uncontrolled Please ensure you are referring to the most current version 3
AindersPower
2 Background
The Playford Power station (PPS) ceased operation in April 2012 The Northern Power Station (NPS) ceased operation on the 9th May 2016
NPS and PPS utilised a supply of coal delivered daily by train from the Leigh Creek Coalfields After combustion in the boilers ash was collected from the bottom of the boiler mixed into a seawater slurry and transferred to the Ash Storage Area by pipeline Fly ash from the exhaust gas was captured by electrostatic precipitators at NPS bag house filters at PPS and then sold to secondary users with the excess transferred to the Ash Storage Area
The Ash Storage Area was continually filled with deposited ash and sea water slurry from the boilers The nature of this mixture allowed the surface to form a salt crust when it dried out - due to the ever-changing location of the deposition field creating high areas of ash During heavy rain this surface crust was occasionally damaged allowing winds to disturb the ash and potentially blow it off site
There was also a flooding regime for the Ash Storage Area whereby internal levees were built up filled with an ashwater mixture and then quickly released to allow for a large portion of the surface of the Ash Storage Area to be flooded so that a salt crust could re-form on top This management strategy changed in October 2016 due to the erosive effects of utilising a pure seawater flooding technique (as opposed to an ash and seawater slurry) and the increased risks associated with dust generation In November 2016 the 212Ha Ash Storage was sealed utilising a dust suppressant applied by air and land
The coal stockpile at Augusta Power Stations was designed as an emergency supply should mine site or railway operations be impacted Historically the coal stockpile has been used on only intermittent occasions However during the last few years of operation due to increased variability in load profile in response to increased volatility in the SA energy market the stockpile was utilised as a dynamic stockpile The movement of coal on the stockpile became a frequent activity to meet strategic stockpiling or generation output needs as required The increased use of the stockpile increased the risk of fugitive dust emissions
To reduce these impacts during operation there were established Operating Instructions relating to the methods of stockpiling and reclaiming coal from the stockpile the use of water cannons for wetting down the stockpile the use of a water truck for applying dust suppressant to the surface of the stockpile water and a description of weather conditions for operations on the stockpile
Whilst these actions were effective in reducing dust emissions from the stockpile and Ash Storage Area a change in strategy continued monitoring vigilance and innovation is required to maintain control over dust emissions during the demolition and site rehabilitation phase
Other identified sources of minor fugitive dust during this phase include roadways and during demolition of coal and ash handling plant
Printed copies are uncontrolled Please ensure you are referring to the most current version 4
AindersPower
3 Setting
The township of Port Augusta is located approximately 300km north of Adelaide on the northern tip of Spencer Gulf and has a Dry Arid Low Latitudes climate
Figure 2 demonstrates the seasonal wind patterns for the region including wind direction and wind speed The charts indicate that strong regular southerlies are dominant during the summer season Port Augusta township especially the suburb of Willsden is potentially affected by fugitive coal dust and ash for most of the year except during winter when the dominant wind direction changes from southerlies to northerlies
Stockpile
The distance between the coal stockpile and the closest residents in Port Augusta to the north is approximately 35km (refer to Figure 1 below)
Coal formerly arrived from the Leigh Creek mine in open rail wagons and was bottom dumped via the rail car dumper on the rail line near the coal stockpile It was then conveyed to either the main coal storage bins for immediate use or to the stockpile for storage
Maintaining the moisture level of the coal to a point where surface dust mobilisation is decreased from the stockpile was achieved by the use of water cannons on the stockpile
The coal stockpile has been decommissioned and as of September 2016 the pad was being rehabilitated and revegetated A sprinkler system has been established over the surface area to promote vegetation establishment and control dust
Ash Storage Area
Waste ash from the boilers and the electrostatic precipitators was formerly mixed with seawater and piped to the Ash Storage Area
Deposited ash formed a salt crust due to the evaporation of water from the mix which stopped the ash from being mobilised and entrained by wind into the airshed
The levees on the edges of the Ash Storage Area were periodically raised to allow for a greater ash holding capacity
During the operational period ash could enter the airshed during windy periods when the surface crust was damaged by heavy rain and after heavy machinery working on the ash dam has broken up the surface A map of the Ash Storage Area in shown in Figure 3 with flood coffer dams numbered and the direction of floodwater flow during surface flooding events indicated
Following NPS closure a number of measures were taken to control dust lift-off from the Ash Storage Area including the installation of new pipework to ensure continued seawater supply the construction of new coffer dams and the use of a temporary pump and pipework from Playford Periodic filling of the coffer dams and breaching enabled seawater to flow out and re-establish a crust However this continued operation was progressively causing erosion to the surface of the dam and the banks of the coffer dams and certain areas such as the central discharge point were unable to be reached by flooding In August 2016 a 15Ha area adjacent the original slurry discharge point was sealed with dust suppressant applied by cropduster This treatment was successful in containing dust from this area Continued flooding to the east and west of this location caused
Printed copies are uncontrolled Please ensure you are referring to the most current version 5
AindersPower
further damage and in October 2016 it was decided to change strategy from seawater flooding to sealing the entire dam surface with dust suppressant
These measures were intended to achieve short-term dust control particularly during summer 201617 while the long-term rehabilitation plans were being implemented These actions are referenced in Implementation and Control Action 2
In late December 2016 a major storm event impacted the dust suppressant seal causing areas of ash to be re-exposed On the 1st and 2nd January 2017 a dust event occurred whereby windblown dust was generated from the surface of the dam
Reapplication of the dust suppressant was conducted throughout January 2017 with a seal re-established by 25th January 2017 Commencement of earthworks also occurred during this period with the opening of an adjacent borrow pit and the commencement of construction of topsoil lsquofingersrsquo across the surface of the dam
At the time of updating the Dust Management Plan approximately 180ha of the Ash Storage Area had been covered with soil with the completion of five east-west access fingers Seeding had occurred over 140ha of the site
Coal Conveyor System
The coal conveyor system begins at the train unloading facility at NPS Coal was directed either to the coal storage bins or the coal stockpile by the conveyor system Coal from the storage bins was conveyed to PPS or NPS as required The coal conveyors are enclosed and the transfer points are inside a number of enclosed towers to reduce dust emissions
Fugitive coal dust was formerly washed down daily from the inside of the conveyor enclosures and the transfer towers The effluent was captured in sumps underneath the towers where the coal dust sediment was collected and returned to the stockpile area
Following closure clean-out of the conveyor lines and transfer towers occurred with all accessible coal washed to the ground where it could be contained and disposed These control actions are described in the APS Environmental Closure and Post-Closure Plan
Short term coal dust management measures are being applied during the demolition and rehabilitation phase This is referenced in Implementation and Control Action 3 amp 5
Coal Storage Bins
There are three Coal Storage Bins at NPS with a capacity of 18000 tonnes located to the west of the stockpile These are enclosed with a tripper on top conveyors and ploughs on the bottom conveyors Both of these are enclosed to reduce dust emissions
Coal bins at Playford were decommissioned and emptied in 2012
Following closure clean-out of the NPS bins occurred with all accessible coal washed to the ground where it could be contained and disposed These control actions are described in the APS Environmental Closure and Post-Closure Plan
Short term coal dust management measures are being applied during demolition of the bins This is referenced in Implementation and Control Actions 3 amp 5
Printed copies are uncontrolled Please ensure you are referring to the most current version 6
AindersPower
Roadways
There are a number of roadways sealed and unsealed around the site where dust settles and aggregates Road vehicle speeds are kept to a 20 kmh limit on most roads with two roads on site having a 40kmh limit for both safety and environmental considerations
The Ash Storage Area is surrounded by a levee system allowing vehicle access on top Windblown ash can settle on the roadways and this is periodically sprayed with dust suppression chemical and wet down with a water truck to reduce dust lift off
Dust control measures used pre-closure are continuing during the closure process This is referenced in Implementation and Control Action 4
Demolition Activities
Flinders Power (FP) and McMahon Services Australia formed an Project Alliance Agreement in May 2016 to facilitate the successful delivery of the site demolition program
The Alliance is a unified team to jointly manage the planning asset salvage and decommissioning works of the Augusta Power Stations The successful delivery of this project relies on the combined efforts of both FP and McMahon Services and the pooling of knowledge experience and expertise under the Alliance is the best contractual means to deliver the complex closure program The Alliance will see the partnership of both the Owner Party (FP) and Non-Owner Party (McMahon Services) to create a single team working unanimously collaboratively and cooperatively and acting in good faith to make best-for-project decisions
FP have invaluable knowledge and expertise about the Augusta Power Stations This knowledge is integral to ensure the safety of all personnel and management of environmental risks McMahon Services has over 25 years of decommissioning experience conducting high risk demolition and hazardous materials removal works at sites across Australia McMahon Services are a licenced entity by the SA EPA and are accredited to ISO 14001
Each module of works within the delivery phase is defined by a unique scope of work with Flinders reserving the right to let independent work scopes
Potential dust generating activates identified in the Project Risk Assessment Register include
bull Stack felling
bull Bin felling
bull General demolition activities
bull General civil works and
bull General site traffic
Dust management measures are being incorporated into the demolition control plans as referenced in the APS Environmental Closure and Post Closure Plan and Alliance Demolition Plans
Printed copies are uncontrolled Please ensure you are referring to the most current version 7
AindersPower
Utilities Available During Demolition
The majority of electricity used by major plant at the station was formerly provided by onsite generation Following closure there remain a number of small electricity supplies to the site mainly into offices and workshops though the main infrastructure utilised for dust control is provided by large standalone portable generators A number of water pumps are used around the Ash Storage Area for seepage water and a portable diesel water pump can be deployed as required
Seawater has been previously pumped from the cooling water inlet screens of NPS to the Ash Storage Area via an agreement with a third party to access power supplies Additional pipework and outlets were installed on the southern side of the Ash Storage Area for targeted seawater flooding Additional seawater was also obtained from the Playford Station seawater inlet using a portable diesel water pump for flooding the south-western corner of the Ash Storage Area
Mains water at high pressure off the SA Water mains pipeline is also available on site and is utilised for stockpile revegetation
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I
bull ~ - __ i ----
middot1 ------ --bull- __ _
~ --I
i 1 i
~--~ V i ~ I
yen 1
I i I l
7 - -+ i i
middot1
i
I l i jL-________________ _ 0 )OOlaquor0ffi o~middot-=------ Naa-est RB51denDaJ Receplen
FIGURE 1 0 us1 Monilltribulli Loootion
AindersPower
Figure 1 Location of the Port Augusta and Stirling North Communities in relation to the APS Site and Coal Stockpile (after Aurecon 2010)
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---
WW SPEED (mis)
bull gtbullIII
- 8 8 11 1 5 7 - U
D 3Cbull 67
D 21 - 3C
D o5bull 21
AindersPower
Wind shadow directions Port Augusta Lgt Stirling North y7
Figure 2 Seasonal Wind Profile
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~IRU LAKl
oms
RL
(
AindersPower
sJ RAHPn
-~
1 RAMP13
Figure 3 Ash Storage Area map showing numbered flood coffer dams and direction of floodwater flow during surface flooding events
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Fp RindtrsPower
4 Supporting Documentation
The following document map outlines the role of the Dust Management Plan in meeting compliance obligations
Governing Legislation
EPA Authorisations Plans Appendices amp Supporting Documents
Environmental Protection Act 1993
EPA Licence 13006
Condition 11 Dust Prevention
Condition 22 Complaints Register
Condition 23 Develop and Implement Closure and Post-Closure Plan
APS Dust Management Plan (this document)
FPP Incident Management System
Environmental Closure and Post Closure Plan ndash Augusta Power Stations (Rev10 25 May 2018)
Appendix A Ash Dam Interim Sealing ndash Proposal 7th November 2016
Appendix B Ash Dam Interim Sealing ndash Risk Assessment 2nd
January 2017
Appendix C Complaint Handling Procedure
Appendix D Fugitive Dust Trigger Action Response Plan (Rev6 3rd
January 2018)
Appendix E Ash Storage Area ndash Extreme Weather Monitoring amp Response Plan (3 March 2017)
App A ndash Detailed Risk Assessments
App B ndash NPS Make Safe Manual
App C ndash PPS Closure Manual
App D ndash Closure amp Care Project Plan
App E ndash Chemical amp Oil Management Plan AppE1 ndash Chemical Manifest amp Removal Scope
App F ndash Demolition Alliance Supporting Plans
App G - APS Dust Management Plan (this document)
Printed copies are uncontrolled Please ensure you are referring to the most current version 12
Fp RindtrsPower
App H ndash Project Risk Assessment Register
Condition 26 Generic Contingency Plan Augusta Power
Station Emergency Response Plan
Condition 27 Pollution Control Refer Ellipse Equipment Register Maintenance
Management System
Environmental Compliance Agreement (2000)
Section 1 Definitions Flinders Power and Interpretations APS Ash Storage
Area End of Life Plan Draft Cost Estimate (14th
February 2000)
Printed copies are uncontrolled Please ensure you are referring to the most current version 13
Fp RindtrsPower
5 Environmental Conditions
The Augusta Power Stations operate according to the Environment Protection Act 1993 (SA)
The EP Act 1993 states the principle of a ldquogeneral environmental dutyrdquo
Part 4mdashGeneral environmental duty 25mdashGeneral environmental duty (1) A person must not undertake an activity that pollutes or might pollute the environment unless the person takes all reasonable and practicable measures to prevent or minimise any resulting environmental harm
The operation of the coal handling and storage system is an authorised activity under an Environmental Authorisation (Licence) under Part 6 of the EP Act provided by the EPA
EPA Notification of Process Changes
According to the requirements of the Environment Protection Act 1993 and Licence Condition 42 the EPA must be notified when there is a proposed change to operating conditions that
bull May increase emissions or alter the nature of pollutants or waste or
bull May increase the risk of environmental harm or
bull Would relocate the point of discharge of pollution or waste
Further in accordance with section 83 of the Act the EPA must be notified when serious or material environmental harm is caused or threatened
FP commits to ensuring compliance with these obligations
Licence Conditions
The Northern and Playford EPA licence (13006) states specifically the activities for which APS undertakes
Licensed Activities
The Licensee(s)
-Flinders Power Holdings GmbH Flinders Labuan (No 1) Ltd Flinders Labuan (No 2) Ltd is (are) authorised to undertake the following activities of environmental significance under Schedule 1 Part A of the Environment Protection Act 1993 (the Act) subject to the conditions of licence set out in the attached pages
1(5)(a) Petroleum storage 2(1) Abrasive blasting 7(3)(C) Crushing grinding or milling works (rock ores or minerals) 7(5) Coal Handling amp storage 8(2)(a) Fuel burning coal or wood
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Fp RindtrsPower
8(7) Discharges to marine or inland waters (heat or antibiotic or chemical water treatments)
8(6a)(a) Desalination plant that discharges wastewater to the marine environment
Licence 13006 (issued 01 January 2015 and as amended 30 August 2017) contains the following condition relating to dust on site
S-9 Dust Prevention
The licensee must
bull Take all reasonable and practicable measures to prevent dust leaving the Premises bull Develop a Dust Management Plan to the satisfaction of the EPA and bull Implement the Dust Management Plan approved in writing by the EPA (or any revised
plan approved in writing by the EPA)
Accordingly Augusta Power Stations operates the former coal stockpile coal handling plant and the Ash Storage Area in such a manner to reduce its effects on the environment including the roads to and from the stockpile and the levees on the ash storage area
The following licence conditions relate to ambient air monitoring
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1 AMBIENT A IR MONITORING (U - 5741
Tlhe Licensee must
31 1 install and operate a continuous meteorological monitoring station al a location within lhe Premises appmved in writing by the EPA
3 1 2 oontinuousily monitor ambient PM1Cl concentrations using an Ecotech Eshysampler Particulate Monitor (or other comparable equipment) at llocatio111s within themiddot Premises approved in writing by the EPA
3 1 3 oontinuousily monitor ambient PM1Cl concentrations using an Ecotech Met One E-Bam Particulate Monitor (or other comparable equipment) at such locations as may be d esignated in writing by the EPA including locations at Lea Memoria l Oval in Port Augusta and at Stirling North
a provide rea l-lttime public access to the monitoring data collected pursuant to ihis clause
b rnotify the EPA in writing of a ny resul ts of monitoring underlaken pursuant to ihis clause w hich indicatemiddot an exceedance of a mbient PM10 concentrations of 50 m icrograms per cubic metre for a 24 hour average period Notification to the EPA must occur within 24 hours of the exceedanoe
c incilude in any notification given pursuant to this clause the actions taken in response to the exceedance in order to mitigatemiddot impacts of PM10 from the Premises on the community
3 1 4 assess and interpret the results of monitoring undertaken pursuanl to th is condit ion to inform the impl ementation of dust mitigation and mana gemenl measures lbased on site-specific trigger valu es set out in the approved Dust Management Plan dated 03 Mardh 2017 or any oobsequent version approved in writing by the EPA
3 1 5 submit to the EPA on a monthly basis a summary of monitoring results for each 24 hour average peniod of ambient PM10 co ncentrations
31 6 upon req uesl of an Authorised Officer provide results of any moniloring undertaken pursuant to ihis condition
NOTES
Condition appticalile to Flinders Power Licence 13006
Fp RindtrsPower
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2 AMBIENT MONITORING A ND REPORTING (U - 6601
The licensee must
321 continuously monilor ambient sulphur dioxide and ambient nilrogen di oxide at a location (or locations) within the Port Augusta township approved in writing by the EPA
322 monitor ambient particulate concentrations (TSP and PM10) using a highshyvolume ai r sampler to determine the 24 hour average at freque111cies and location (or locations) within the Port Augusta or Stirling North township approved in writing by the EPA
323 undertake an investigatio11 to determine the source of any exceede11ce(s ) a11d provide to the EPA the outcomes of lhe i11vestigation if followi11g levels are exceeded at any monitor ing location(s)
a Sulphur dioxide 571 micrograms per cubic metre (detenmi11ed as a one hour average)
b Nitroge11 Dioxide 246 micrograms per cubic metre (determined as a 011e 11our average) a11d
c Ambient particulate oonce11trations (PM10) SCI micrograms per cubic metre (detem1ined as a 24 hour average) and
324 nolify the EPA wilhin seven days of a11y su~ hur dioxide exceedence as measured at the monitoring location(s) referred to in sub-condition 1 and
325 notify themiddot EPA in writing of any results of monitoring undertaken pursua11t to sub-condition 2 which indicate an exceedance of ambient PM10 con centratior1s of SCI micrograms per cubic metre for a 24 hour average period Nolificatio11 to the EPA musl occur within 24 hours of the exceedance
a include in a11y notification given pursuant to this clause the actions taken in response to the exceedancemiddot in order to mitigate impacts of PM10 trom the Premises on the community
326 submil to the EPA on a mo11thly basis a summary of monitoring results for ambient particulate concentrations (TSP and PM10) ambient 11itrogen dioxidemiddot and ambient sulphur dioxide
Fp RindtrsPower
Ambient Dust Monitoring ndash TSP amp PM10
To monitor the ambient air dust levels across the community there are a number of High Volume Air Samplers (HVAS) at strategic locations in Port Augusta and Stirling North There are two types of HVAS a total suspended particulate (TSP) type which samples all of the dust in the air and another for particulate matter 10 microns and smaller in diameter (PM10)
The following sets out the agreed ambient monitoring arrangements (per EPA authorisation of 30 August 2017)
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( middot~
Stir ling North Real-Time PMlO Community Monitor Contingency PMlO High-Volume Monitor
Fp RindtrsPower
Sign in
Operational Monitors
- Three Ecotech E-Sampler Particulate (PM10) Monitors (lsquoProtinus 1000rsquo) have been installed as follows
o The South Operational Monitor located on the southern Ash Storage Area boundary
o The East Operational Monitor located on the eastern Ash Storage Area boundary
o The North Operational Monitor located on the northern boundary of the Polishing Pond at the closest point of site to Port Augusta residences
- The units record real-time data at 5-minute intervals Data is available via the Ecotech online reporting system Eagle The SA EPA has been provided access to the Eagle system
- The system provides real-time trigger alerts to Flinders Power staff by email and SMS Alarm thresholds are defined in the Flinders Power Fugitive Dust Trigger Action and Response Plan
- A summary of data namely the monitoring results for each 24-hour average period of ambient PM10 concentrations will be provided to the EPA on a monthly basis
Real-Time PM10 Community Monitors
- Two Exactus Beta Attenuation Monitors (BAM) have been installed within the nearest identified sensitive human health receptors to the site one each at
o Lea Memorial Oval representing the closest community receptor in the dominant downstream wind direction from the site and
o Stirling North Primary School representing the background concentrations of regional dust conditions It also acts as a secondary community monitor for fugitive dust emissions from the site during south-westerly wind conditions
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Fp RindtrsPower
- Data is collected on a 10-minute average basis Data is available via the online reporting system Eagle The SA EPA has been provided access to the Eagle system
- The system provides real-time trigger alerts to Flinders Power staff by email and SMS Alarm thresholds are defined in the Flinders Power Fugitive Dust Trigger Action and Response Plan
- A summary of data namely the monitoring results for each 24-hour average period of ambient PM10 concentrations will be provided to the EPA on a monthly basis
- The data collected from these monitors will be utilised for community monitoring against the 24-hour ambient particulate concentrations limit (PM10 concentration of 50ugm3) Data from these monitoring stations is made publicly available in real-time at wwwflinderspowercomau
- A trigger alarm (via email) has been set whereby project staff will be alerted by email if there is an exceedance of 50 micrograms per cubic metre of air over a 24-hour average period Flinders will notify the EPA within 24hours should this occur along with an interpretation of the conditions of the day and details of any remedial actions were undertaken at the site
Daily Total Suspended Particulate (TSP) at Lea Memorial Oval
- A high-volume air sampler is located at Lea Memorial Oval and will be run each day to collect TSP data The filter paper will be kept on record for further analysis if required
- Three high-volume air sampler units will be located at the site and will be set to run on timer over weekends and public holiday periods
- The data is indicative of total dust in the vicinity of the monitor
- A summary of data namely the monitoring results for each 24 hour average period of ambient TSP concentrations will be provided to the EPA on a monthly basis
Contingency PM10 and TSP Monitoring Sites
- A contingency PM10 high-volume sampler will be retained at
o The Port Augusta Pigeon Club
o The Port Augusta Tennis Association
o Lea Memorial Oval
o Stirling North Primary School
- A contingency TSP high-volume sampler will be retained at
o Port Augusta Hospital
- These samplers will be operated
- On days of high potential dust (eg days when charge felling of infrastructure occurs)
- If dust levels arising from site increase warranting an increase in the monitoring frequency
- During times of an outage of the real-time monitors at Lea Memorial and Stirling North
- Periodically for calibration purposes
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Fp RindtrsPower
Speciation
One of the challenges in undertaking ambient monitoring for dust within the community is differentiating coal ash and soil particles derived from operational activities as distinct from natural regional dust A key differentiator is wind direction and strength The wind direction and strength for the day of measurement is captured within data reports and used to assist determine whether particles may have derived from the APS site Another method used is colour ndash a filter paper of a red colour may indicate a high contribution of natural regional dust and is particularly noticeable during regional dust storms A filter paper of a grey colour can indicate a contribution from the ash dam however the natural urban dust and wood smoke from domestic heaters tends to also be grey in colour A very dark greyblack tinge can indicate the contribution from coal dust The township of Port Augusta and surrounding communities is located in a desert climate and is subject to frequent dust storms from the arid interior The analysis of historical high ambient dust results against weather events shows a strong correlation with regional conditions
Another key data input is local knowledge On certain days there may be local activities eg development of the Central Oval or mowing at the Lea Memorial Oval) that may be a key contributor to local dust These conditions are noted on the monitoring results database
Along with ambient air dust sampling dust collected from various locations around the site including along the railway and around the Ash Storage Area and town have been sampled to determine the coal and ash content
Other methods to identify the sources of dust collected at monitoring stations are continually investigated
The results of speciation work undertaken by the EPA or Flinders Power will be taken into account and the plan may be updated to reflect any requirements arising from these
In late 2016early 2017 the EPA conducted dust sampling and analysis at a monitoring station located adjacent to the Ash Dam and from a station within the Port Augusta community The results of the sampling including assessment from SA Health are available on httpwwwepasagovaubusiness_and_industryindustry-updatesflinders-power-port-augusta The results of the analysis indicated that whilst the toxicity of the ash particulate is considered low the particle size warrants proactive management of dust from the ash dam
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Fp RindtrsPower
6 Dust Management Plan (DMP)
Plan Stakeholders - Roles and Responsibilities
Positions in Flinders Power have been identified and assessed as having direct influence over parts of the process involved with managing dust on the APS site The responsibilities of such positions are described here to ensure clear and progressive lines of accountability and communication for the purpose of implementing this Plan
Facility Manager APS
bull Approve and support the DMP Ensure ongoing compliance with the DMP bull Authorise the resources required to implement this plan bull Custodian of the lsquoAsh Storage Area Contingency Plan ndash Extreme Weather Monitoring amp
Response Planrsquo ndash Appendix E bull Consult with the Environmental Coordinator to determine appropriate environmental
management strategies and contingency measures required by the DMP bull Install and maintain dust management infrastructure including dust suppression sprays and
cannons bull Report actual and potential environmental incidents bull Ensure sufficient resources (personnel materials and equipment) are available to respond to
high dust events bull Consult with the Environmental Coordinator with respect to the management of contractors
for decommissioning demolition and rehabilitation activities that may affect the integrity and effectiveness of the DMP
bull Maintain dust management infrastructure to ensure ongoing effectiveness and reliability bull Liaise with environmental and allied Regulators bull Notification to Regulators of any adverse dust events bull Notification to Regulators of any material changes to dust management controls and bull Consult and liaise with community stakeholders including proactive notification of
actualpotential dust events
Program Director ndash Flinders Sites
bull DMP document owner bull Review and approve the DMP bull Provide advice andor assistance to the Facility Manager APS to ensure the DMP is
appropriately implemented in the workplace bull Liaise with environmental and allied Regulators bull Ensure the FP website has current and accurate environmental monitoring data and bull Consult and liaise with community stakeholders
Environmental Coordinator
bull Manage stockpile and Ash Storage Area operations in accordance with the provisions of this plan in order to minimise the creation of fugitive dust
bull Provide advice and or assistance to the Facility Manager APS to ensure the DMP is appropriately delivered and followed in the workplace
bull Coordinate sampling of PM10 and TSP high volume samplers bull Ensure dust monitoring equipment is functional and accurate
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Fp RindtrsPower
bull Collation and reporting of environmental monitoring data bull Ensure dust and weather monitoring equipment is functional and accurate bull Collate and deliver daily environmental data including 5-day weather forecast dust risk
rating BOM dust alerts BOM severe weather alerts and previous period environmental monitoring data
bull Ensure proactive and reactive notification mechanisms are in place bull Maintain interpret and communicate dust monitoring results bull Investigate DMP non-conformances or dust quality exceedences bull Determine appropriate management strategies and implement contingency measures in
consultation with the relevant managersupervisor bull Complete all required Internal and External reports required by the DMP bull Ensure the Incident Management System contains the details of incidents and complaints
related to the DMP bull Service and maintain ambient monitoring equipment in accordance with OEM instruction and
the Environmental Monitoring Plan bull Publishing and provision of real-time and monthly data reporting to the EPA and community
and
FP Project Management Team
bull Manage stockpile and Ash Storage Area operations in accordance with the provisions of this plan in order to minimise the creation of fugitive dust
Land Management Team
bull Maintain the Ash Storage Area to reduce dust generation
bull Inspect the Ash Storage Area levees and batters along with site roads and perform dust suppression actions as required
bull Wash down coal dust and spillages from underneath conveyor structures and ash from under the boiler area
bull Maintain site vegetation and
bull Perform any other dust mitigation actions around site as necessary
Alliance Team members (FP McMahons Services and subcontractors)
bull Implement Alliance Plans including Environmental Management Plan bull Ensure appropriate dust management controls are applied for specific demolition activities
eg charge felling bull Undertake operation activities in accordance with relevant Flinders Power policies
procedures management protocols plans statutory licence and contract requirements bull Implement appropriate environmental management measures and bull Report actual and potential environmental incidents to the Facility Manager via their
supervisor
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Fp RindtrsPower
Implementation and Control Actions
The Implementation and Control Actions in the DMP are based on the following specific items
bull Design and use of plant and equipment so as to control and minimise dust bull Development and application of work procedures which reduce the potential for dust bull Use of dust suppression techniques on the Ash Storage Area coal storage and handling
areas and bull Development and implementation of auxiliary techniques to monitor weather conditions
affecting site in particular the Ash Storage Area in order to implement the Trigger Action Response Plan (TARP)
The following Tables (1 to 5) document the potential coal air qualitydust impacts with associated control plans
This has been developed by utilising the 2014 Aspects and Impacts Register as the basis to identify the locations or activities with the highest risk of dust generation on the site and updating these to reflect the requirements during closure activities
The locationsactivities have been ranked according to the highest residual risk for the environmental aspects contained in each
Table 5 lsquoAspects and Control Action 5 Demolition Activitiesrsquo specifically references the Alliance Project Risk Register which relates to dust control for demolition activities
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Rindmlower
Table 1 Aspect and Control Action 1 Coal Stockpile Operations
The following action plan relates to the revegetation of the former stockpile area
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
FPP Project
Management Team
Civil works on
stockpile pad
Preparation for
revegetation
Coal dust amp
wind blown
soil
Air quality EPP (Air Quality) Major Likely Extreme-8 Dust Management Plan Access
to area during low wind speeds
Water truck
Irrigation water
sprinkler system
Minor Possible Mod-5 wind
directionspeed
ambient monitoring
ad-hoc dust
monitoring
Operator
training
Closure period
23 Environmental Services Coal stockpile
management
Coal dust Air quality EPP (Air Quality) Major Likely Extreme-8 Dust Management Plan
Sprays Water truck
Project Group Minor Unlikely Low-4 wind
speeddirection
ambient monitoring
Operator
awareness
General
conditions
Inherent Risk Operational Controls
Augusta Power Stations Environmental Aspects and Impacts Register
General Control Matrix
Area Potential impact Potential contaminants Rehabilitation Controls Responsible personnel
Coal Stockpile and Tower Pad Heavy machinery generating dust while operating on or near the stockpile where coal is present during revegetation activities and prior to vegetation becoming established
Air qualitydust movement off site due to wind speed and direction
Coal dust soil and surface dust Capping and revegetation of the former coal stockpile and tower pad to prevent future potential fugitive dust emissions It is proposed to carry on with site civil works to cap the coal stockpile and tower pad areas and follow behind with seeding with native seeds at a rate of 15kg per Ha consistent with the Ash Storage area The coal stockpile and tower pad area has the advantage of the ability to irrigate which is expected to facilitate germination and growth of the native vegetation
FPP Project Management Team
Surface ripping during low winds (lt35kmhr) Cease work when wind speeds increase (gt35kmhr) Use of water truck to wet surface Allowing surface to harden Installation of irrigation system Revegetation of pad surface Daily monitoring by Project Manager and Land Management Team Additional revegetation as required
FPP Project Management Team
Use of dust suppression chemicals on open areas as required
Environmental Coordinator
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Rindmlower
Daily weather reports for wind speed amp direction forecasting and provide advice to team
Environmental Coordinator
Manually operate the sprinkler systems on forecasted strong wind conditions prior to forecasted conditions Install a remote activation system to allow operation in unforeseen or non-forecasted events quickly
Environmental CoordinatorFacility Manager
Printed copies are uncontrolled Please ensure you are referring to the most current version 25
Rindmlower
Augusta Power St ations Environmental Aspects and Impacts Register Ref No Responsible Activity Location Enviro Aspect Enviro Impact Legal amp other lnheren t Risk Operat ional Controls Residual Risk Monito ring Training Note
Oep tBronchSection requirements
(cause) (effect) Consequence Ukelihood Roting Primary Support Consequence Likelihood Rating
5 Environmental Services Ash storage dam Oust (Ash) Air quality EPP (Air Qua I ity) M ajor Almost Edreme-9 Oust Management Plan TARP APS Ash St orage Major Unlikely High-6 daily in spections
management emissions certain dust suppr ession chemical Dam Insp ection ambi ent monitoring
applicat ion t o surface and Check Ii st JSP234 Ash 3 mont hly
levees rea l -t ime PM10 disposal pipe laying inspections
mentoring at ash dam and JSP235 V ehicle
w it hi n com munity t ext alerts operation in Ash
BOM moni t oring of weather Pond area
prediction s
212 Environmental Services Ash sto rage dam Oust Air quality EPP (Air Qua I ity) M ajor Almost Extreme-9 Dust Managem ent Plan TARP APS Ash St orage Major Unlikely High-6 daily in spections
management (Red sand) certain dust suppr ession chemical Dam Inspection ambient monitoring
emissions appl ication t o surface and Checklist JSP235 3 mont hly
levees t rained vehicle Vehicle operat ion in inspections
operators real -t i me PM10 Ash Po nd area
mentoring at ash dam and
wit hin com munity t ext alerts
BOM moni t oring of weather
predictions
Table 2 Aspects and Control Action 2 Ash Storage Area Management
The following action plan relates to the management of the Ash Storage Area (ASA)
General Control Matrix
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Ash Storage Area Generation of dust from the main surface of the Ash Storage Area including borrow pits on the south side
Surface dust from main pipework outfall area
Generation of ash dust from the inside of the western levee areas
Generation of ash dust from the inside of the Eastern levee areas
Southern levee surfaces and batters including areas where wind-blown ash has settled
Ash dust particles Use of dust suppression treatment on the surface of the ASA ndash Refer Appendix A and B
Trigger Action Response Plan (Refer to section 7)
Use of water carts and additional dust suppression on banks and roadways as required
Daily visual inspection and remedial works as required
Facility Manager APS Environmental Coordinator McMahon Services
Facility Manager
Land Management Team
Environmental Coordinator
Ash Storage Area ndash Implementation of long-term rehabilitation plan
Generation of red dust from the borrow pit during excavation and haulage
Generation of surface red dust from haul roads tofrom the borrow pit and the Ash Storage Area
Soil lsquored dustrsquo particles Monitoring of dust generation and use of dust suppression measures during the implementation of the long-term rehabilitation plan for the Ash Storage Area Refer to Appendix D Fugitive Dust Trigger Action Response Plan (Rev 4 29th May 2017)
Facility Manager APS
McMahon Services
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Rindmlower
Generation of red dust from topsoil fingers and ash dam surface after spreading
Printed copies are uncontrolled Please ensure you are referring to the most current version 27
Rindmlower
Table 3 Aspects and Control Action 3 Coal Conveyor System and General Site
The following action plan relates to the management of dust around the conveyor system and general site
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
62 Flinders Project
Services
Coal bin storage Coal dust Air quality EPP (Air Quality) Moderate Possible High-6 Enclosure wash down of built
up dust
Maintenance
routines
Moderate Rare Mod-4 ambient monitoring
maintenance
records
Augusta Power Stations Environmental Aspects and Impacts Register Inherent Risk Operational Controls
General Control Matrix
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Conveyors Residual coal dust generation from conveyors and bins around the station
Coal dust Enclosed structures Dust wash down (completed during Make Safe period) Defect hazard reporting Routine site inspection
Environmental Coordinator
Open areas Generation of dust from surfaces such as underneath conveyors and towers where coal has spilled or dust settled
Coal dust and surface dust Wash down with water hose when required
Land Management Coordinator
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Rindmlower
Demolition Control Actions
Table 4 Aspects and Control Action 4 Site Roads (General Conditions)
The following action plan relates to the management of dust roadways around site
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
21 Environmental Services Road traffic Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Moderate Possible High-6 Speed limits on-site
Routine road washing
Minor Unlikely Low-4 Site inspections
Augusta Power Stations Environmental Aspects and Impacts Register Inherent Risk Operational Controls
General Control Matrix
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Roads Generation of dust from road surfaces Coal dust and surface dust Water spray with water truck Street sweeper (hired as required)
McMahons Facility Manager APS
Printed copies are uncontrolled Please ensure you are referring to the most current version 29
set Issue or lmpr-ovement Opportunity
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Inherent Risk Rating
llkeoll100ltI
2 Ml lOlt C ~ lY
RaiJno amp Pr1011ty
current ~ roaoh (Exktlng ContlOJGJ
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exayatcn [FC1 =so) bull~ )kg durtng ClemaaJOlii a tlYfty P~tm cwem enl ~ red wJle~ pa10 eci Jlfe-er elCe~N e OBl=r1tion ofd-11-t tf lNllittd w zatetmiddot airt rutJ~etl ID 1tQgtff1iii e1l gniund
~ 1 iRedu-ced lllcfilrty ctmng high WlJd~ Ou~ mcdtortlvl ~tQ 1slu-S i1od ete-cronlc monlmn
Rlsidu11 Risk Rating
Rallng amp Pr1ltlrlly
Modun l i
Proposld Mitigation o f Risk Exposure lmp-ovem1mt Aciions
Rkk Reduotlon Trbull abnbull nil o r Aa ef lmp(OWbullmefll
ov-edAoifon
Aotton owner
Rindmlower
T arglt Risk Rating
LllellhOOd
Table 5 Aspects and Control Action 5 Demolition Activities
The following action plan relates to the management of dust during specific demolition activities
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
McMahons Road traffic during
demolition activities
removal of material
off site
Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Moderate Possible High-6 Pre-task JSEA Site vehicle
speed limits
Routine road washing with
water truck
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Minor Unlikely Low-4 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons General Demolition
Activities
Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
Water areas with water hoses
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons General Civil Works Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
Water areas with water hoses
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons Stack Felling Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
Industrial mist fans
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons Bin Felling Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
Inherent Risk Operational Controls
Augusta Power Stations - Demolition Environmental Aspects and Impacts
Alliance Project Risk Assessment Register ndash Dust from demolition activities ndash extract
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Rindmlower
General Control Matrix (for Table 5 Aspects and Control Action 5 Demolition Activities)
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Stack Felling Generation of dust Coal dust ash and surface dust Vehicle speed limits Water shall be utilised for the purpose
McMahons Facility Manager APS
of dust suppression during demolition
Coal Bin Felling Generation of dust Coal dust ash and surface dust activity via air misters spotters with McMahons milk hoses suppressing dust during Facility Manager APS works as well as pre-wetting materials
General demolition activities Generation of dust Coal dust ash and surface dust before demolition activity commences McMahons water cannons built into large Facility Manager APS
General civil works Generation of dust Coal dust ash and surface dust
excavators spraying during demolition activity Plant movement minimised where
McMahons Facility Manager APS
Site traffic for demolition material removal
Generation of dust Coal dust ash and surface dust
possible to prevent excessive generation of dust If required water cart utilised to suppress seal ground area Reduced activity during high winds Dust monitoring using visual and electronic monitors
McMahons Facility Manager APS
Community and stakeholder engagement and information sharing of demolition events with potential for significant dust generation which may have an adverse effect on the community
Reclaim transport and use of ash from Generation of dust Ash dust Refer to task-specific JSEA developed McMahons the Ash Storage Area for demolition for the activity (Appendix F) Facility Manager APS activities (eg backfill of voids)
Reclaim transport and use of soil from Generation of dust Soil (red) dust McMahons the on-site borrow pit for demolition Facility Manager APS activities (eg backfill of voids topdressing working base for excavator)
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7 Ash Storage Area ndash Dust Management
The current approach for dust management on the Ash Storage Area (ASA) utilises regional weather predictions of wind speed and direction to inform activity planning and the implementation of dust management measures on the ASA
Historically infrequent events have occurred whereby rainfall on the ASA during the spring and summer months has caused the salt crust on the surface created by surface seawaterash slurry flooding to deteriorate and allow ash to become airborne in strong winds
Whole of ASA Dust Suppression Treatment
Conditions on the ASA since closure has shown that the normal dust suppression activities used (coffer dam building and surface flooding) have damaged the ASA surface allowing fine ash to be lifted from the surface A review of the dust suppression methods used on the ASA through August ndash October 2016 determined that the optimal method of dust suppression was to seal the whole of the ASA surface with a dust suppression treatment
An initial area of 15Ha in the middle of the ASA was sealed with dust suppression chemical in August 2016 which was applied by crop duster airplane The results of the sealing of this initial area were positive and after severe weather events during September and October 2016 causing large ash lift off events from the remainder of the ASA and dangerous conditions for machinery on the ASA levee banks it was decided to investigate the sealing of the whole of the main ASA
A risk assessment and proposal for the sealing of the ASA was developed in collaboration with the EPA and provided for review on the 21st October 2016 Approvals were provided and the project was completed on 22nd November 2016
Severe storm activity in the period 24-28th December 2016 impacted the dust suppressant seal which rapidly dried and led to a dust event on the 1st and 2nd January 2017
The use of a dust suppressant seal is an interim measure prior to the completion of the full rehabilitation program
Trigger Action Response Plan ndash Ash Storage Area
A Trigger Action Response Plan (TARP ndash refer Appendix D) has been developed incorporating the ldquostoplightrsquo performance monitoring tool and visual site inspections as the triggers The TARP will hold two key functions
- To monitor sealant condition and determine if further treatment is required to control ash dust generation from the Ash Storage Area and
- To monitor the generation of lsquored dustrsquo during the completion of the long term rehabilitation plan including soil trafficking emplacement and throughout the germination period of vegetation
A newly installed ambient dust monitoring system is also used to inform site staff of ldquoreal timerdquo airborne dust levels around the ASA and in two community monitoring sites These ldquoreal timerdquo levels
Printed copies are uncontrolled Please ensure you are referring to the most current version 32
Win
d D
irec
tio
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sect N
~ w
w
8
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la
l
0
240
120
17 7
30
240
120
17 9
30
240
120
1711
30
240
120
171
33
0
240
12
01
71
53
0
I 24
01
2017
17
30
240
120
17 1
930
f~ 2
401
201
7 21
30
~~
240
120
172
33
0
i~
250
120
17 1
30
250
120
17 3
30
I 25
01
2017
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0
ii
250
120
17 7
30
A t
250
120
179
30
~
E
~ V
3
II
) 25
01
2017
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0 Q
I ~
250
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1713
30
J II)
250
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17 1
530
~
-[ i
n 25
01
2017
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171
93
0
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omiddot
I 25
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middot~
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d S
pee
d k
mh
are used in conjunction with site visual observations to determine escalating trigger points within the TARP
The mitigation responses are drawn from the Aspect Control Actions appropriate for the identified triggers The site Incident Management System (IMS) is used as the action assignment and data recording tool
The TARP has been communicated to the appropriate site stakeholders to ensure appropriate actions are taken to mitigate dust from specific identified areasactivities on site
The Ash Storage Area has been identified as the key area for dust management and a three tiered process using wind forecasts has been developed with a daily weather forecast utilising a Red-Yellow-Green ldquostoplightrdquo type format Daily weather reports are reviewed for wind speeds forecasted to be over 35kmh in the proceeding days and a weather forecast chart is used to identify times of risk of generating dust
The chart below shows an example of the weather forecast prepared and communicated daily to site leaders
Figure 4 Example lsquostoplightrsquo TARP system for weather warning
The green band to show when potentially dust generating activities with heavy plant can take place A yellow band indicates when caution is required and a red band indicates times where it is likely that site activities may need to cease
The daily report is supplemented with the predicted weather conditions (sourced from weatherzonepro) for the next 6 day forecast period An example is provided in Figure 5 below
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flinderslower
Vlincl Speed (kph) kmh) vs Vf111cl Dir kmh) I Temperature (degC) vs Jgtreap Probab1l1tv () Last updated Tue 24 Jan 07 OD
AAAAAAAAAAA AAAAAAAAAA AAAAAAA gt-~A AA AA4AA ~~~AAA t-C DATE 24 )(Ill Tue TIME 0730
M ~~
VJn 1 c--ip(I 1_k(lhJ 1 ) 4 t 21 ~-5
WinDir A 351kmh v7
2_Jan ~ n
Figure 5 Example six-day predicted weather forecast
Further Flinders has access to the Bureau of Meteorology dust warning system which is checked daily and alerts issued with the daily environmental report An example dust warning is provided in Figure 6 below
Printed copies are uncontrolled Please ensure you are referring to the most current version 34
flinderslower
Local Time 1230 COST (dar l ) Base Da~middot 2017 02 01
Figure 6 Example BOM dust warning
Preparation for extreme weather events is documented in Appendix E Ash Storage Area ndash Extreme Weather Monitoring amp Response Plan
On high wind speed days the following example precautions will be undertaken where appropriate Full details are provided in the TARP (Appendix D)
bull Ensure safety of site staff and visitors
bull Monitor wind speeds using Bureau of Meteorology data
bull Cease work activities on the Ash Storage Area
bull Surface inspections to determine if ash is blowing off
bull Targeted action for high risk accessible areas and
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flinderslower
bull Notify stakeholders and the community if required (Port Augusta City Council community and SA EPA) in accordance with Section 5 of the APS Environmental Closure amp Post-Closure Plan
When a community complaint regarding dust is received by the company activities on the Ash Storage Area will be reviewed and ceased if deemed appropriate by the Flinders Power Facility Manager or delegate
Printed copies are uncontrolled Please ensure you are referring to the most current version 36
flinderslower
8 Former Coal Stockpile Areandash Dust Management
The NPS Coal Stockpile pad has been rehabilitated and revegetation of the surface is in progress
Whilst the vegetation is established the existing Coal Stockpile TARP will be followed as below
Flinders Power (FP) have made attempts to revegetate the existing former coal stockpile area in 2016 through to 2018 directly into coal however only relatively minor vegetation has established A site inspection conducted by Succession Ecology in August 2017 noted that revegetation over time will be successful however an alternate seed blend may expedite the process Additional seed was sown in September 2017 A lack of rainfall over the 201718 period has impaired germination
In order to expedite the timeframes associated with arid lands revegetation projects Flinders now propose to carry on with civil capping works currently being undertaken across the ash storage area to cap the approximate 15 Ha former coal stockpile and tower pad areas The existing irrigation infrastructure will be retained for future dust management and potentially for irrigation to initiate germination
The soil capping of this area is designed to mitigate fugitive coal dust emissions Additionally the borrow pit material will facilitate the revegetation of this area in order to establish a self-sustaining environment
Succession Ecology (SE) has inspected the area and is supportive of the capping
The soil capping will be seeded with a previously approved native seed (wet) mix which is salt tolerant as advised by SE due to the evident salinity levels in the area
Vegetation Monitoring will continue to occur
The irrigation will be mainly used for dust suppression but could be used for kicking off germination depending on what rains we receive and what success of germination we have from the rain The irrigation will remain operational in the case it may be required
FP has received endorsement of the approach from Kirsa Environmental
Timing for approval of capping of the former coal stockpile and tower pad area is critical as it is proposed to follow on from current site civil capping works into the proposed capping works associated with the former coal stockpile and tower pad areas
It is intended that the current fleet of civil plant will be utilised to complete the proposed capping scope of works
Trigger Action Response Plan ndashStockpile Revegetation
A (TARP) has been developed for revegetation work on the stockpile incorporating the ldquostoplightrsquo performance monitoring tool and visual site inspections as triggers
Stockpile revegetation has been identified as a key area for dust management and the stoplightrdquo Red-Yellow-Green weather forecast will also be used during activities on the stockpile pad To facilitate and expedite the revegetation of the former coal stockpile and tower pad areas it is proposed to cap the area using material from the existing borrow pit
The lsquostoplightrsquo format will use a Green band to show when potentially dust generating activities with heavy plant can take place according to the following weather conditions
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flinderslower
Any activities during a wind speed below 20kph (6 ms or 11 knots) from the SOUTH EAST to SOUTH WEST
A Yellow band will show the hours when potentially dust generating activities with heavy plant can take place according to the following
Any activities during a wind speed over 20kph (6 ms or 11 knots) from any wind direction other than from the SOUTH EAST to SOUTH WEST
A Red band will show the hours when potentially dust generating activities with heavy plant cannot take place
Any movement activities during a wind speed over 20kph (6 ms or 11 knots) from the SOUTH EAST to SOUTH WEST
Stockpile inactiveRevegetation Program
Proactive measures will be undertaken when strong wind conditions are forecasted by manually operating the former coal stockpile sprinkler system to dampen the area to prevent dust lift A remote operating system will be installed to provide a quick response to any non-forecasted or unforeseen weather events
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flinderslower
9 Dust Monitoring and Evaluation
Ongoing dust monitoring by either visual evaluation of ashcoalsoil dust generation on site or by interpretation of the results from the dust monitoring network will determine if dust mitigation measures are effective or additional measures are required
Groups responsible for inspections are described in the action tables and TARP Text and email alerts are automatically sent to a nominated group of responsible persons when dust wind speed and wind direction thresholds are exceeded These mechanisms are outlined in the TARP
The monitoring of real-time PM10 data from the boundary monitors of the Ash Storage Area is presented on a screen within the Flinders Power office on site and monitored by both Flinders Power and McMahon Services personnel A summary of data is provided in the daily environmental report
Access to real-time dust monitoring information for the Ash Storage Area and community monitoring stations is made available to the EPA A summary of real-time data for the community PM10 monitors is presented on the Flinders Power website and made openly available to the community
The monitoring of real-time PM10 data from Stirling North and Lea Memorial Oval is verified daily (M-F) by the Environmental Coordinator
The monitoring of ambient high-volume filter papers within the Port Augusta community is conducted daily by the site Environmental Coordinator
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flinderslower
10 Community and Stakeholder Engagement
Community and stakeholder engagement is detailed in the APS Closure and Post Closure Environmental Plan
A summary of these mechanisms are outlined below
Mechanism Target Group Posted on FP
website
Frequency Notes
Residents PACC MP Media EPA NRM Board
Special-interest groups
Weekly progress report
X X X No Weekly A summary of activities at the site including demolition and ash dam rehabilitation
Face-to-Face meetings site visits
X NA Monthly Monthly meetings with PACC CEO and Mayor when available
Annual environmental presentation
X Yes Annual Annual presentation to PACC ndash open public forum
Media release Infomercials
X X Yes Ad-hoc Strategic media release eg felling of PPS A station stack
Works Progress Fact Sheet
X X X X Yes Monthly Quarterly
A monthly progress update Letter drop
Focus topic fact sheet
X X X X X X X Yes Ad-hoc A brochure on a particular topic (eg ash dam Playford A building demolition) Letter drop
Flinders Power website
X X X X X X X Yes Regular updates
Information portal Links to FP YouTube account FP contact details
Flinders Power hotline amp email
X X X Yes NA All community complaints are logged
Special-interest presentations
X NA On request
Presentations or site visits on request (eg Rotary schools)
Community site visits
X NA On request
Actively invite community members
Community forum
X X Yes Monthly Group now established
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flinderslower
reference group
Community X Yes TBA May include site information tours days
SMS distribution list
X X X X X X X Yes Ad-hoc Rapid notification of dust incidents
Flinders power is also performing community sentiment monitoring using the following
- Daily media monitoring ndash print TV radio and online
- Complaints hotline amp email ndash central recording
- Facebook ndash linked with community forums
- FP personnel embedded within the community
- Feedback from SA Government Regulators
- Close relationships with PACC MPrsquos local media and community leaders
101 Complaint Management
Community complaints regarding nuisance coal dust and ash are to be dealt with according to the Complaint Handling Procedure contained in Appendix C
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flinderslower
References
Aurecon 2010 Alinta Northern Power Station Stockpile Dust Management Flinders Power Report ref 206865-001-01 9 September 2010
Environment Protection Act 1993 (SA)
EPA Licence 13006 (Northern and Playford Power Station)
EPA Licence 13011 (Leigh Creek to Port Augusta Railway Operations)
Flinders Power Environment amp Community Policy (June 2016)
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flinderslower
Appendices
Appendix A Ash Dam Interim Sealing ndash Proposal 7th November 2016
Appendix B Ash Dam Interim Sealing ndash Risk Assessment 2nd st January 2017
Appendix C Complaint Handling Procedure
Appendix D Fugitive Dust Trigger Action Response Plan (Rev 6 3rd January 2018)
Appendix E Ash Storage Area ndash Extreme Weather Monitoring amp Response Plan (Rev 0 3rd March 2017)
Appendix F JSEA for the excavation transport and use of soil and ash from the borrow pit or Ash Storage Area for demolition activities
Printed copies are uncontrolled Please ensure you are referring to the most current version 43
flinderslower
Appendix C
Complaint Handling Procedure
All complaints received by Flinders Power employees including security are handled according to the following steps
All complaint receivers are required to
bull Collect all details from the complainant (time location concerns)
bull Repeat back and confirm details with the complainant
bull Obtain complainants contact details
bull Advise relevant Supervisor immediately
The Facility Manager is to be advised as soon as practicable of receipt of the complaint
The complainant will be contacted and an investigation of the complaint initiated as soon as practicable of the receipt of the complaint The investigation typically may include
- A visit to the complainant to
o Observe local dust conditions
o Discuss the event with the complainant and
o Taking of samples
- A review of site data from the time of the incident
- A review of meteorological data
Following the investigation the complainant is to receive a written response outlining the investigation procedure and findings If requested the findings of the investigation will be explained and discussed with the complainant in person
Details of the complaint the investigation management actions implemented and follow up is recorded within the FP Incident Management System
All media enquiries are to be managed through the approved Flinders Power Media Protocols
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- Blank Page
- Blank Page
- Blank Page
- Blank Page
- Blank Page
- Blank Page
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- Blank Page
- Blank Page
- Blank Page
-
Appendix A
bull -~ - - alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 1 Northern Power Station CW channels Playford workshops amp environs as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
U l
Planned t
Completion Date i m
Consequence Likelihood Rating amp Priority
1 General Office activities Energy use Resource use
Energy overuse Resource 5 Insignificant C Likely Low 22 waste disposal costs and
recyclingsalvage revenue E ective 5 Insignificant C Likely Low 22
2 General General waste management
General waste Resource use Excessive waste
generation Resource 4 Minor C Likely Medium 17
Waste segregation JSP 320 Unloading and Handling of Rubbish Skips monitor re
contamination E ective 5 Insignificant E Unlikely Low 25
3 General
equipment decommissioning
Industrial waste management (ex-asbestos) (Waste oil considered separately)
Industrial waste [local] storage and transport to site storage area
Waste disposalrecycling soilgroundwater contamination
Improper waste disposal contamination
of waste destination enforcement action
Waste 3 Moderate C Likely High 11
Waste Management at APS S38 Disposal Procedure for Aerosol cans etc S311 Storage Handling and Disposal of solvents etc amp S315 Storage Handling
and Disposal of waste oil JSP 320 Unloading and Handling of Rubbish Skips
monitor to ensure clear identification samplinganalysis if required Maintain
waste disposal records (eg WTCs or WTFs)
E ective 3 Moderate E Unlikely Low 21
4 APS post
production
Asbestos management Asbestos removal storage and disposal
Air quality
Airborne asbestos enforcement action
Human Health 2 Major D Possible High 12
S32 Asbestos Management System amp site procedures qualified contractor S37 Guidelines for the safe use of insulation of
materials containing SMFs Asbestos Register air monitoring waste disposal
records (WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
5 General
decommissioning
Industrial Waste water (contaminated drains and ash)
Overflows Marine pollution
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
JSP117 Drain cleaning amp JSP228 Ash Pit cleaning block drains within work areas
that discharge directly to marine environment if practicable Emergency
Response Plan Spill response IMS water monitoring programme disposal records
(WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
13 Heath Safety amp
Security
Implement contingency plan decommissioningdemo lition
environmental contingencies
Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency response plans (reviewed annually) review for decommissioning demolition activities (after project plan
has been developed) Crisis Management Plan Review response equipment and
training Support procedures eg Incident Management System Station Instruction
S17 (Spill Response) S316 (Spill Reporting) S18 (Fire Reporting) S4G29
Hazard inspections amp JSP385 Use of emergency boat IMS IMS
E ective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental
Management Plans to be developed incorporating specific measures for
activities with potential to cause environmental harm
Alinta Energy Earlymid 2016
14 Heath Safety amp
Security
Fire on site decommissioningdemo lition
Contaminated fire water discharge
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Contaminated drains system Emergency Response Plan Crisis Management Plan
review options re containment of fire water eg within ABC Lake in preference to
discharge to ash pond storage Maintenance routines Station Instruction
S17 (Spill Response) IMS Plant monitoring
E ective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
15 Heath Safety amp
Security
Site security decommissioningdemo lition
vandalism Site amenity Site damage injury to
persons Security 3 Moderate D Possible Medium 16
Site security systems Emergency Response Plan
E ective 3 Moderate E Unlikely Low 21
16 Heath Safety amp
Security Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora enforcement action
Environmental 4 Minor D Possible Low 20 Restricted spraying to low wind speed
wind speed estimates records E ective 4 Minor E Unlikely Low 23
18 Heath Safety amp
Security
Land management landscaping (post decommissioningdemo lition)
Maintaining amp improving landscaping
Improved site amenity Poor visual amenity
soil erosion dust Environmental
Final landforms and potential landscaping plan
E ective
19 Heath Safety amp
Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections E ective 4 Minor E Unlikely Low 23
20 Heath Safety amp
Security
Waste recycling area(s) decommissioningdemo lition
Waste management
Resource use
Improper waste disposal contamination
of waste destination enforcement action
Resource 3 Moderate E Unlikely Low 21
Waste segregation (to improve recycling re-use) Waste management Process Site
Map S311 Storage Handling and Disposal of solvents etc Determine if the
area is adequate for decommissioningdemolition Establish additional areas for staging of material prior to re-use on site andor disposal
Control runoff (via containment pond(s) Site inspections routine visits by external recycling contractor S37 Guidelines for
the safe use of insulation materials containing SMF waste recycling records
Waste disposal records (WTCs and WTFs)
E ective 4 Minor E Unlikely Low 23
21 Heath Safety amp
Security
Disposal of mercury-containing lighting (eg fluoros) decommissioning
Landfill Soilgroundwater contamination
Improper waste disposal contamination
of waste destination enforcement action
Resource 4 Minor E Unlikely Low 23
Waste segregation managed by appropriate waste management company
Waste management Process Site Map S38 Disposal Procedure for Aerosol cans
empty fluid drums small batteries permalubes and mercury globes Provide labelled containers (eg 200L drums) for
storage prior to removal Waste disposal records (WTCs and WTFs)
E ective 5 Insignificant E Unlikely Low 25
22 Heath Safety amp
Security
Road traffic decommissioningdemo lition
Dust emissions Air quality Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust suppressant if required) Hi VolDustTrak dust monitoring
on site boundary
E ective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement Action Owner
Strategic or Approved Action
U l
Planned t
Completion Date i m
Consequence Likelihood Rating amp Priority
23 Environmental
Services
Environmental Compliance decommissioningdemo lition
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting
environmental checklist for decommissioningdemolition Surrender
of EPA Licence Site Environmental Awareness Induction S4G29 Hazard
Inspections update induction material for decommissioningdemolition Water
Sampling Program stack and ambient monitoring reporting on EMP and
reporting to EPA
E ective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance requirements and regulatory in Alinta Closure
Environmental Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environmental
Services
Site environmental performance monitoring decommissioningdemo lition
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS
Environmental water sampling for SS pH and salinity Additional siteboundary
monitoring required during decommissioningdemolition (eg HI_Vol
and noise) IMS regular monitoring reports (eg weekly) Monitoring
programmes and regular reporting
E ective 3 Moderate E Unlikely Low 21
26 Environmental
Services
Ambient environmental monitoring instrumentation calibration (decommissioningdem olition)
Environmental monitoring
Non compliance
Nil Improper process in place
Procedural 3 Moderate D Possible Medium 16
JSP400 APS Environmental water sampling at APS Calibration program and
records Maintenance routines E ective 3 Moderate E Unlikely Low 21
27 Environmental
Services
Performance Reporting decommissioningdemo lition
Compliance Non compliance (EPA reporting monthly (required by ECA Schedule 1 11))
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18 Sample Management JSPs Reporting
calendar ambient monitoring E ective 2 Major E Unlikely Medium 18
Specific reference to compliance and regulatory requirements in Alinta
Closure Environmental Management Plan including reporting timetable
Alinta Energy Through to demolition completion
28 Environmental
Services
Decommissioningdem olition
Non compliance (EPA reporting (annual))
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Reporting calendar Internal management
reporting ambient monitoring E ective 3 Moderate E Unlikely Low 21
29 Environmental
Services
Pre-decommissioning (last operational year)
Non compliance (Annual Independent Verification of Monitoring Program)
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Reporting calendar water quality
monitoring program E ective 3 Moderate E Unlikely Low 21
30 Environmental
Services Pre-decommissioning (last operational year)
Annual NPI reporting
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Reporting calendar Usage of reportable
substances data E ective 3 Moderate E Unlikely Low 21
31 Environmental
Services
Implement and monitor program in response to environmental concerns (decommissioningdem olition)
Environmental Improvement Program implementation
Environmental improvements
Nil Improper process in place
Procedural IMS regular updating of actions E ective
32 Environmental
Services
Discharges into the marine environment decommissioningdemo lition (including use or removal of bulk chemicals)
Contaminated drains SPELS
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Chemical oil and fuel bunding oil separation stormwater segregation
monitoring of stormwater control systems S310 (Ferrous sulphate) S311
(Solvents) S313 (Sodium hypochlorite) S315 (Waste oil) Pump outs
Decommissioning and demolition within containment (minimise direct discharges
to marine environment) Emergency Response Plan IMS water monitoring
programme site inspections
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
33 Environmental
Services
Site operations decommissioningdemo lition
Noise Nuisance Public nuisance
complaints enforcement action
Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm weekdays 8am-6pm weekends) boundary noise monitoring
E ective 3 Moderate E Unlikely Low 21
34 Environmental
Services
Site operations decommissioningdemo lition
Spillage of stored materials and wastes
Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 2 Major E Unlikely Medium 18
IMS regular updating of actions site inspections (required by ECA) S31
Chemwatch S311 Storage Handling and Disposal of solvents etc Emergency Response Plan Crisis Management Plan
IMS inspection records
E ective 3 Moderate E Unlikely Low 21
35 Environmental
Services
Historical operations post decommissioningdemo lition
Discharges to soilgroundwater landfills
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular monitoring of
known groundwater contamination E ective 3 Moderate E Unlikely Low 21
36 Environmental
Services
Environmental incidents decommissioningdemo lition
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for decommissioningdemolition activities)
IMS Incident Management System E ective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental
Management Plans to be developed incorporating specific measures for
activities with potential to cause environmental harm Site incident
reporting mechanism to be used (IMS)
Alinta Energy Earlymid 2016
37 Environmental
Services
Environmental awareness decommissioningdemo lition
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for decommissioningdemolition activities) training and induction records
(for decommissioning demolition induction)
E ective 4 Minor E Unlikely Low 23
38 Environmental
Services
Environmental auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition requirements
(eg demolition approval conditions) E ective 3 Moderate E Unlikely Low 21
39 Environmental
Services
Community complaints decommissioningdemo lition
Amenity community perception of organisation
Nuisance Complaints local
action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to
complainant Complaints Register Internal media advisor Reporting to management
E ective 3 Moderate E Unlikely Low 21
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
U l
Planned t
Completion Date i m
Consequence Likelihood Rating amp Priority
40 Environmental
Services
Annual community consultation post operation
Community perception of organisation
Non compliance Nil Improper process in
place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar E ective 3 Moderate E Unlikely Low 21
41 Environmental
Services
Potable water use decommissioningdemo lition
Excessive potable water use
Resource waste Water overuse financial cost increased
risk of Gulf contamination
Resource 3 Moderate E Unlikely Low 21 Re-location of services prior to demolition E ective 4 Minor E Unlikely Low 23
42 Operations Tech
Support
Environmental monitoring instrumentation calibration (decommissioningdem olition)
Environmental monitoring
Non compliance
Nil Improper process in place
Procedural 3 Moderate D Possible Medium 16
Calibration program and records Maintenance routines (applied to ambient
monitoring) E ective 3 Moderate E Unlikely Low 21
46 Post production coal conveyors
Coal conveyors Coal dust (conveyorstransfe rs)
Air quality Personnel exposure
limit exceedence public nuisance complaints
enforcement action
Environmental 3 Moderate C Likely High 11 wash down of built up dust E ective 5 Insignificant E Unlikely Low 25
47 Post production
coal bins
Coal bin storage Coal dust Air quality Personnel exposure
limit exceedence public nuisance complaints
enforcement action
Environmental 3 Moderate D Possible Medium 16 Wash down of built up dust ambient
monitoring maintenance records E ective 3 Moderate E Unlikely Low 21
48 Fireexplosion Air quality
Coal dust explosion Fire 2 Major D Possible High 12
Review risk assessments for decommissioningdemolition Emergency
Response Plan IMS E ective 3 Moderate E Unlikely Low 21
49 APS post production
Coal plant washdown Marine discharge Water quality Contaminated water
entering the Gulf damage to Gulf waters
enforcement action
Environmental 4 Minor D Possible Low 20
Containment of washwater JSP 107 Bunker Washing water monitoring
programme E ective 4 Minor E Unlikely Low 23
50 APS post production
Decommissioningdem olition
Oil spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21
Contaminated drain system S17 Oil Spill Procedure review and enhance containment options Emergency
Response Plan IMS Maintenance records
E ective 4 Minor E Unlikely Low 23
51 APS post production
Decommissioningdem olition
Fuel oil spillage (eg gun malfunction)
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate D Possible Medium 16
Operating controls S17 Oil Spill procedure contaminated drains Emergency Response Plan IMS
E ective 3 Moderate E Unlikely Low 21
52 APS post
production
Decommissioningdem olition
Seawater flow Ecological impact (eg fauna loss)
ReductionIncrease in number amp abundance of
local marine species Environmental 3 Moderate E Unlikely Low 21
Review options for cooling water channels (eg breach wall)
E ective 3 Moderate E Unlikely Low 21
53 APS post
production
Decommissioningdem olition
Contamination of condenser cooling water
Ecological impact Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 2 Major E Unlikely Medium 18 Review options for condensers (post
production) visual E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
54 APS post
production
Boiler water drainage Treated water discharge
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 4 Minor D Possible Low 20 drainage into Ash pit Operating controls
ambient water monitoring programme E ective 4 Minor E Unlikely Low 23
55 APS post
production
Decommissioningdem olition
Hydrogen gas leakage
Air quality fire hazard Explosion personnel
exposure Fire 2 Major E Unlikely Medium 18
Evacuation of hydrogen Maintenance routines Emergency Response Plan
Crisis Management Plan IMS hydrogen monitoring
E ective 2 Major E Unlikely Medium 18
56 APS post
production
Auxiliary boiler operation decommissioningdemo lition
Spillage of dosed water
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21 Operating controls containment
Maintenance routines E ective 3 Moderate E Unlikely Low 21
57 APS post
production
Fuel oil removal Fuel oil spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21
Contaminated drains Operating controls S17 Oil Spill procedure Emergency
Response Plan IMS E ective 3 Moderate E Unlikely Low 21
58 APS post
production
Emergency diesel generators decommissioningdemo lition
Diesel spillage (loading and operational)
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21
Bunding Operating controls S17 Oil Spill procedure tested transfer hoses
Maintenance routines Emergency Response Plan IMS
E ective 3 Moderate E Unlikely Low 21
59 APS post
production
Fly ashbottom ash handling systems decommissioningdemo lition
Spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 2 Major E Unlikely Medium 18 Flush ash systems to ash storage area
water monitoring programme E ective 4 Minor E Unlikely Low 23
60 APS post
production
Fly ash re-use storage and handling area
Spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 4 Minor D Possible Low 20 Empty and washdown plant Discharge to
containment area E ective 4 Minor E Unlikely Low 23
61 APS post
production
Decommissioningdem olition
Contamination of flow to ash storage pond (eg oil)
Water quality Spill entering ash disposal system discharge to Gulf
waters enforcement action
Environmental 3 Moderate D Possible Medium 16
Contaminated drains oil containment oil handling ash pond controls Ash storage dam inspections Emergency Response
Plan IMS inspection records
E ective 4 Minor E Unlikely Low 23
62 APS post
production
Machine degreasingwashdown
Wastewater discharge
Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 3 Moderate C Likely High 11
Bunded washbays JSP104 Degreasing JSP102 Steam Cleaner Operation
contaminated drain system contained degreasers Quick break degreaser oil
separator S311 Storage Handling and Disposal of solvents etc water monitoring
programme
E ective 4 Minor E Unlikely Low 23
63 APS post
production Air emissions (volatile)
Air quality fire hazard
Fire personnel exposure
Fire 3 Moderate E Unlikely Low 21 Procedures extraction systems E ective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
U l
Planned t
Completion Date i m
Consequence Likelihood Rating amp Priority
64 APS post
production
Oil removal Oil spillage Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 3 Moderate C Likely High 11
Station Instructions S17 Oil Spill procedure S315 Storage Handling and
Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil treatment plant Contaminated drain system Emergency Response Plan IMS water monitoring
programme
E ective 4 Minor E Unlikely Low 23
65 APS post
production
Waste oil storage Oil spillage Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 3 Moderate C Likely High 11
Bunded storage S17 Oil Spill procedure S315 Storage Handling and Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil treatment plant Emergency
Response Plan IMS water monitoring programme
E ective 3 Moderate E Unlikely Low 21
66 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major E Unlikely Medium 18 Bunded storage Emergency Response
Plan Spill response IMS E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
67 APS post
production
Fire Air quality Fire personnel
exposure Fire 3 Moderate E Unlikely Low 21
Storage controls (minimise ignition sources) Emergency Response Plan
Crisis Management Plan IMS E ective 3 Moderate E Unlikely Low 21
68 APS post
production
Discharges into the marine environment
Contaminated drains SPELS
Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 2 Major D Possible High 12
Chemical oil and fuel bunding oil separation maintenance of SPEL tanks
stormwater segregation review of routine to inspect SPEL tanks Emergency
Response Plan IMS water monitoring programme site inspections SPEL
cleanout routines
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
69 APS post
production
Oil -filled electrical equipment decommissioning and removal
Leakage Water quality
Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 2 Major E Unlikely Medium 18
Bunding S17 Oil Spill procedure JSP271 NPS Step-up Unit transformer amp line
isolator maintenance Emergency Response Plan Crisis Management Plan IMS monitoring of oil properties (eg PCB
content)
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
70 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major E Unlikely Medium 18 Containment of oil-filled equipment
Emergency Response Plan E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
71 APS post
production
Fire explosion Air quality
Fire personnel exposure
Fire 2 Major E Unlikely Medium 18 Permits containment E ective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
72 APS post
production
Battery Rooms decommissioning and removal
Acid spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 4 Minor D Possible Low 20
Bunded JSP052 Battery maintenance JSP315 Battery Bank Replacement S31
Chemwatch Maintenance routines Emergency Response Plan IMS
E ective 4 Minor E Unlikely Low 23
73 APS post
production
Fireexplosion (gas generation)
Air quality Fire personnel
exposure Fire 3 Moderate E Unlikely Low 21
Extraction system Maintenance routines Emergency Response Plan IMS
E ective 4 Minor E Unlikely Low 23
74 APS post
production
Fire pumps decommissioning
Fueloil spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 4 Minor E Unlikely Low 23 S17 Oil Spill procedure Emergency
Response Plan IMS E ective 4 Minor E Unlikely Low 23
75 APS post
production
WorkshopsGarage decommissioning and demolition
Removal and disposal of dangerous substances spills
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21
Bunded storage S31 Chemwatch Emergency Response Plan IMS Waste disposal documentation (WTCsWTFs)
E ective 4 Minor E Unlikely Low 23
76 APS post
production
Removal of dangerous substances incompatible storage fire
Air quality Personnel exposure
limit exceedence public nuisance complaints
enforcement action
Environmental 3 Moderate E Unlikely Low 21
Segregation of dangerous substances S31 Chemwatch S311 Storage
Handling and Disposal of solvents etc Emergency Response Plan IMS
E ective 3 Moderate E Unlikely Low 21
77 APS post
production
Disposal of oilycontaminated rags
Contaminated soil Soilgroundwater contamination clean up
actions enforcement actions
Environmental 4 Minor E Unlikely Low 23 Segregation for disposal E ective 5 Insignificant E Unlikely Low 25
78 APS post
production
Grit blasting decommissioning and demolition
particulate emissions
Air quality water quality
Air soil amp groundwater contamination clean up
actions enforcement actions
Environmental 3 Moderate D Possible Medium 16
Removal and disposal of grit washdown prior to demolition Containment of
washdown water E ective 4 Minor E Unlikely Low 23
79 APS post
production
Demolition general Lead emissions (from lead-based paints)
Personnel exposure limit exceedence public
nuisance complaints enforcement action
Environmental 3 Moderate E Unlikely Low 21
lead paint testing dust control processes Maintenance routines lead in paint testing
(as required) and recorded E ective 4 Minor E Unlikely Low 23
80 APS post
production
Refrigerationair conditioning servicing decommissioning (as required)
Release of ozone depleting substances
Depletion of Ozone layer
Environmental harm regulatory enforcement
Environmental 3 Moderate D Possible Medium 16
ARC licensed operators ozone-depleting gas reclaim for decommissioned equipment Audits based on ARC
requirements JSP372 Air Conditioner Maintenance Records of ozone-depleting
substances reclaim etc
E ective 3 Moderate E Unlikely Low 21
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
U l t i m
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
Planned Completion Date
Consequence Likelihood Rating amp Priority
Sewerage system Sewage overflow Water quality Spill entering onsite
81 APS post
production
relocation of services (caused by decommissioning and
drains system discharge to Gulf
waters enforcement Environmental 4 Minor D Possible Low 20
Response to sewer chokes JSP028 Sewage Pit pump and control repairs
Emergency Response Plan IMS E ective 4 Minor E Unlikely Low 23
demolition) action
bullmiddotmiddot - ~- alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 2 Unit 3 Area as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates
records ffective 4 Minor E Unlikely Low 23
18 Heath
Safety amp Security
Land management landscaping (post decommissionin gdemolition)
Maintaining amp improving landscaping
Improved site amenity
Poor visual amenity soil erosion dust
Environmental Final landforms and potential
landscaping plan ffective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections ffective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissionin gdemolition
Dust emissions Air quality Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust
suppressant if required) Hi VolDustTrak dust monitoring on site
boundary
ffective 4 Minor E Unlikely Low 23
23 Environmen tal Services
Environmental Compliance decommissionin gdemolition
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting
environmental checklist for decommissioningdemolition
Surrender of EPA Licence Site Environmental Awareness Induction S4G29 Hazard
Inspections update induction material for
decommissioningdemolition Water Sampling Program stack and
ambient monitoring reporting on EMP and reporting to EPA
ffective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environmen tal Services
Site environmental performance monitoring decommissionin gdemolition
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS
Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during decommissioningdemolition (eg HI_Vol and noise) IMS regular
monitoring reports (eg weekly) Monitoring programmes and regular
reporting
ffective 3 Moderate E Unlikely Low 21
33 Environmen tal Services
Site operations decommissionin gdemolition
Noise Nuisance Public nuisance
complaints enforcement action
Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm
weekdays 8am-6pm weekends) boundary noise monitoring
ffective 3 Moderate E Unlikely Low 21
35 Environmen tal Services
Historical operations post decommissionin gdemolition
Discharges to soilgroundwat er landfills
Soilgroundwater contamination Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular monitoring
of known groundwater contamination
ffective 3 Moderate E Unlikely Low 21
36 Environmen tal Services
Environmental incidents decommissionin gdemolition
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for decommissioningdemolition
activities) IMS Incident Management System
ffective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
37 Environmen tal Services
Environmental awareness decommissionin gdemolition
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for
decommissioningdemolition activities) training and induction records (for decommissioning
demolition induction)
ffective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
38 Environmen tal Services
Environmental auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition requirements (eg demolition
approval conditions)
ffective 3 Moderate E Unlikely Low 21
39 Environmen tal Services
Community complaints decommissionin gdemolition
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to complainant Complaints Register
Internal media advisor Reporting to management
ffective 3 Moderate E Unlikely Low 21
40 Environmen tal Services
Annual community consultation post operation
Community perception of organisation
Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Compliance calendar ffective 3 Moderate E Unlikely Low 21
41 Environmen tal Services
Potable water use decommissionin gdemolition
Excessive potable water use
Resource waste
Water overuse financial cost increased risk of
Gulf contamination Resource 3 Moderate E Unlikely Low 21
Re-location of services prior to demolition
ffective 4 Minor E Unlikely Low 23
bullmiddotmiddot middot~ bullmiddot ~- alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 4a Coal Stockpile amp Rail Loop Area as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed
estimates records ffective 4 Minor E Unlikely Low 23
17 Heath
Safety amp Security
Land management heritage (decommissioningd emolition)
Damage to aboriginal andor post settlement heritage items
Damage to heritage items Damage to or loss of
Native amp Heritage items sites
Heritage 3 Moderate E Unlikely Low 21
Site Environmental Awareness Induction
confirmation of any potential heritage sites within impacted
area
ffective 3 Moderate E Unlikely Low 21
18 Heath
Safety amp Security
Land management landscaping (post decommissioningde molition)
Maintaining amp improving landscaping
Improved site amenity Poor visual amenity soil
erosion dust Environmental
Final landforms and potential landscaping plan
ffective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections ffective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissioningde molition
Dust emissions Air quality
Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads
(use of dust suppressant if required) Hi VolDustTrak
dust monitoring on site boundary
ffective 4 Minor E Unlikely Low 23
23 Environmen tal Services
Environmental Compliance decommissioningde molition
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting environmental
checklist for decommissioningdemolition
Surrender of EPA Licence Site Environmental
Awareness Induction S4G29 Hazard Inspections update
induction material for decommissioningdemolition Water Sampling Program
stack and ambient monitoring reporting on EMP and
reporting to EPA
ffective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
24 Environmen tal Services
Coal stockpile management pre-decommissioning (utilisation of stockpile)
Coal dust Air quality
Limit exceedence public nuisance
complaints enforcement action
Environmental 2 Major C Likely High 7
Dust Management Plan Sprays Water truck JSP 322 -paper mulch Project Group
IMS daily checks and records wind speeddirection
ambient monitoring
ffective 4 Minor E Unlikely Low 23
25 Environmen tal Services
Site environmental performance monitoring decommissioningde molition
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS
JSP403 APS Environmental water sampling for SS pH
and salinity Additional siteboundary monitoring
required during decommissioningdemolition (eg HI_Vol and noise) IMS
regular monitoring reports (eg weekly) Monitoring
programmes and regular reporting
ffective 3 Moderate E Unlikely Low 21
26 Environmen tal Services
Ambient environmental monitoring instrumentation calibration (decommissioningd emolition)
Environmental monitoring
Non compliance
Nil Improper process in place
Procedural 3 Moderate D Possible Medium 16
JSP400 APS Environmental water sampling at APS Calibration program and
records Maintenance routines
ffective 3 Moderate E Unlikely Low 21
33 Environmen tal Services
Site operations decommissioningde molition
Noise Nuisance
Public nuisance complaints
enforcement action Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm weekdays 8am-6pm weekends) boundary
noise monitoring
ffective 3 Moderate E Unlikely Low 21
34 Environmen tal Services
Site operations decommissioningde molition
Spillage of stored materials and wastes
Water quality
Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 2 Major E Unlikely Medium 18
IMS regular updating of actions site inspections (required by ECA) S31
Chemwatch S311 Storage Handling and Disposal of solvents etc Emergency
Response Plan Crisis Management Plan IMS
inspection records
ffective 3 Moderate E Unlikely Low 21
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
35 Environmen tal Services
Historical operations post decommissioningde molition
Discharges to soilgroundwat er landfills
Soilgroundwater contamination Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular
monitoring of known groundwater contamination
ffective 3 Moderate E Unlikely Low 21
36 Environmen tal Services
Environmental incidents decommissioningde molition
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for
decommissioningdemolition activities) IMS Incident Management System
ffective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
37 Environmen tal Services
Environmental awareness decommissioningde molition
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction
(reviewed for decommissioningdemolition
activities) training and induction records (for
decommissioning demolition induction)
ffective 4 Minor E Unlikely Low 23
38 Environmen tal Services
Environmental auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include
decommissioningdemolition requirements (eg demolition
approval conditions)
ffective 3 Moderate E Unlikely Low 21
39 Environmen tal Services
Community complaints decommissioningde molition
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation
Directed response to complainant Complaints Register Internal media
advisor Reporting to management
ffective 3 Moderate E Unlikely Low 21
40 Environmen tal Services
Annual community consultation post operation
Community perception of organisation
Non compliance Nil Improper process in
place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar ffective 3 Moderate E Unlikely Low 21
41 Environmen tal Services
Potable water use decommissioningde molition
Excessive potable water use
Resource waste Water overuse financial
cost increased risk of Gulf contamination
Resource 3 Moderate E Unlikely Low 21 Re-location of services prior
to demolition ffective 4 Minor E Unlikely Low 23
43 Loco
refueling area
Loco refueling area (decommissioningd emolition)
Historical oilfuel spillage
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 3 Moderate C Likely High 11 Review for any potential
contamination ffective 3 Moderate E Unlikely Low 21
44
Post production
coal stockpile
area
Runoff from coal stockpile area (post operation)
Water quality (runoff)
Water quality Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 3 Moderate C Likely High 11
Collection no direct marine discharges water monitoring
programme ffective 4 Minor E Unlikely Low 23
45
Post production
coal stockpile
area
Post operation coal stockpile area
Fire (spontaneous combustion)
Air quality Fire smokeparticulate
emissions public amp personnel exposure
Fire 3 Moderate E Unlikely Low 21
Develop strategy to reduce risks of spon com In post operational coal stockpile area Monitoring by Alinta
staff IMS
ffective 4 Minor E Unlikely Low 23
middot bullmiddotmiddot - ~ - al1ntaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 4b Ash Dam ABC Lake amp Polishing Pond as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
6 Heath
Safety amp Security
Ash storage dam management decommissioning demolition
Dust emissions Air quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 3 Moderate D Possible Medium 16
Maintenance work with periodic salt water flooding to maintain crust plus chemical
coating treatment of levees Ash Storage Dam Development Recommendations Ash Storage Dam Management Responsibilities Matrix Develop strategies for management
during decommissioningdemolition and long-term APS Ash Storage Dam
Inspection Checklist JSP234 Ash disposal pipe laying JSP235 Vehicle operation in
Ash Pond area IMS daily inspections ambient monitoring 3 monthly inspections
Effective 3 Moderate E Unlikely Low 21
7 Heath
Safety amp Security
Water emissions (including seepage)
Water quality (carryover of ash trace elements nutrients pH)
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major D Possible High 12
Refer to 6 detention time seeping interception and pump-back review need for
additional floating curtainoil capture daily inspections weekly water sampling water quality monitoring programme 3 monthly
inspections
Effective 3 Moderate E Unlikely Low 21
8 Heath
Safety amp Security
Groundwater contamination
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18 Refer to 7 groundwater monitoring
programme Effective 4 Minor D Possible Low 20
9 Heath
Safety amp Security
Visual impact Amenity Complaints local action
media attention regulatory involvement
Community 3 Moderate C Likely High 11 Screening planting inspection records Effective 4 Minor D Possible Low 20
10 Heath
Safety amp Security
Breeding of midges
Amenity Public health niusance complaints local action
media attention regulatory involvement
Community 3 Moderate C Likely High 11
Control of salinity Site inspections long-term plan for ash storage area Weekly
water sampling Effective 4 Minor E Unlikely Low 23
11 Heath
Safety amp Security
Ash storage dam leakage (eg levee breach) post decommissioning demolition
Water quality Marine contamination mangrove destruction
Marine contamination clean up actions
enforcement actions Environmental 2 Major E Unlikely Medium 18
Refer to 5 perimeter dam wall design inspections Emergency Response Plan
Crisis Management Plan IMS Ash Storage Pond Closure Plan (need to consider long-term stability of levees) daily inspections 3
monthly inspections inspection records
Effective 2 Major E Unlikely Medium 18
12 Heath
Safety amp Security
Land contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major E Unlikely Medium 18
Refer to 6 daily inspections access controls review risks from
decommissioning processes (eg oilhazardous materials removal from
equipment) contain on site Emergency Response Plan Crisis Management Plan
IMS daily inspections
Effective 2 Major E Unlikely Medium 18
14 Heath
Safety amp Security
Fire on site decommissioning demolition
Contaminated fire water discharge
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Contaminated drains system Emergency Response Plan Crisis Management Plan
review options re containment of fire water eg within ABC Lake in preference to
discharge to ash pond storage Maintenance routines Station Instruction
S17 (Spill Response) IMS Plant monitoring
Effective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
15 Heath
Safety amp Security
Site security decommissioning demolition
vandalism Site amenity Site damage injury to
persons Security 3 Moderate D Possible Medium 16
Site security systems Emergency Response Plan
Effective 3 Moderate E Unlikely Low 21
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates records
Effective 4 Minor E Unlikely Low 23
18 Heath
Safety amp Security
Land management landscaping (post decommissioning
Maintaining amp improving landscaping
Improved site amenity Poor visual amenity soil
erosion dust Environmental
Final landforms and potential landscaping plan
Effective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections Effective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissioning demolition
Dust emissions Air quality Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust suppressant if required) Hi VolDustTrak dust monitoring
on site boundary
Effective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement Action Owner
Strategic or Approved Action
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
23 Environment al Services
Environmental Compliance decommissioning demolition
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting
environmental checklist for decommissioningdemolition Surrender of
EPA Licence Site Environmental Awareness Induction S4G29 Hazard
Inspections update induction material for decommissioningdemolition Water
Sampling Program stack and ambient monitoring reporting on EMP and reporting
to EPA
Effective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environment al Services
Site environmental performance monitoring decommissioning demolition
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during decommissioningdemolition (eg HI_Vol and noise) IMS regular monitoring reports (eg
weekly) Monitoring programmes and regular reporting
Effective 3 Moderate E Unlikely Low 21
26 Environment al Services
Ambient environmental monitoring instrumentation calibration (decommissioning demolition)
Environmental monitoring
Non compliance
Nil Improper process in place
Procedural 3 Moderate D Possible Medium 16
JSP400 APS Environmental water sampling at APS Calibration program and records
Maintenance routines Effective 3 Moderate E Unlikely Low 21
32 Environment al Services
Discharges into the marine environment decommissioning demolition (including use or removal of bulk chemicals)
Contaminated drains SPELS
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Chemical oil and fuel bunding oil separation stormwater segregation
monitoring of stormwater control systems S310 (Ferrous sulphate) S311 (Solvents) S313 (Sodium hypochlorite) S315 (Waste
oil) Pump outs Decommissioning and demolition within containment (minimise
direct discharges to marine environment) Emergency Response Plan IMS water monitoring programme site inspections
Effective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
33 Environment al Services
Site operations decommissioning demolition
Noise Nuisance Public nuisance complaints
enforcement action Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm weekdays 8am-6pm weekends) boundary noise monitoring
Effective 3 Moderate E Unlikely Low 21
34 Environment al Services
Site operations decommissioning demolition
Spillage of stored materials and wastes
Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 2 Major E Unlikely Medium 18
IMS regular updating of actions site inspections (required by ECA) S31
Chemwatch S311 Storage Handling and Disposal of solvents etc Emergency
Response Plan Crisis Management Plan IMS inspection records
Effective 3 Moderate E Unlikely Low 21
35 Environment al Services
Historical operations post decommissioning demolition
Discharges to soilgroundwat er landfills
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular monitoring of
known groundwater contamination Effective 3 Moderate E Unlikely Low 21
36 Environment al Services
Environmental incidents decommissioning demolition
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for decommissioningdemolition activities) IMS
Incident Management System Effective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to be
used (IMS)
Alinta Energy Earlymid 2016
37 Environment al Services
Environmental awareness decommissioning demolition
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for decommissioningdemolition activities) training and induction records
(for decommissioning demolition induction)
Effective 4 Minor E Unlikely Low 23
38 Environment al Services
Environmental auditing (and forwarding summary to EPA) review requirement post
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition requirements
(eg demolition approval conditions) Effective 3 Moderate E Unlikely Low 21
39 Environment al Services
Community complaints decommissioning demolition
Amenity community perception of organisation
Nuisance
Complaints local action media attention
regulatory involvement Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to
complainant Complaints Register Internal media advisor Reporting to management
Effective 3 Moderate E Unlikely Low 21
40 Environment al Services
Annual community consultation post operation
Community perception of organisation
Non compliance Nil Improper process in
place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar Effective 3 Moderate E Unlikely Low 21
41 Environment al Services
Potable water use decommissioning demolition
Excessive potable water use
Resource waste Water overuse financial cost increased risk of
Gulf contamination Resource 3 Moderate E Unlikely Low 21 Re-location of services prior to demolition Effective 4 Minor E Unlikely Low 23
bullmiddotmiddot -~ - - alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 7 Hospital Creek as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure
Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates
records ffective 4 Minor E Unlikely Low 23
18 Heath
Safety amp Security
Land management landscaping (post decommissio ningdemolitio n)
Maintaining amp improving landscaping
Improved site amenity
Poor visual amenity soil erosion dust
Environmental Final landforms and potential
landscaping plan ffective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections ffective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissio ningdemolitio n
Dust emissions Air quality Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust suppressant if required) Hi VolDustTrak dust monitoring on
site boundary
ffective 4 Minor E Unlikely Low 23
23 Environmen tal Services
Environment al Compliance decommissio ningdemolitio n
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA
reporting environmental checklist for decommissioningdemolition Surrender of EPA Licence Site
Environmental Awareness Induction S4G29 Hazard
Inspections update induction material for
decommissioningdemolition Water Sampling Program stack
and ambient monitoring reporting on EMP and reporting to EPA
ffective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environmen tal Services
Site environmenta l performance monitoring decommissio ningdemolitio n
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS
Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during
decommissioningdemolition (eg HI_Vol and noise) IMS regular monitoring reports (eg weekly) Monitoring programmes and
regular reporting
ffective 3 Moderate E Unlikely Low 21
32 Environmen tal Services
Discharges into the marine environment decommissio ningdemolitio n (including use or removal of bulk chemicals)
Contaminated drains SPELS
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Chemical oil and fuel bunding oil separation stormwater
segregation monitoring of stormwater control systems
S310 (Ferrous sulphate) S311 (Solvents) S313 (Sodium
hypochlorite) S315 (Waste oil) Pump outs Decommissioning and
demolition within containment (minimise direct discharges to
marine environment) Emergency Response Plan IMS water monitoring programme site
inspections
ffective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
33 Environmen tal Services
Site operations decommissio ningdemolitio n
Noise Nuisance Public nuisance
complaints enforcement action
Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm
weekdays 8am-6pm weekends) boundary noise monitoring
ffective 3 Moderate E Unlikely Low 21
35 Environmen tal Services
Historical operations post decommissio ningdemolitio n
Discharges to soilgroundwat er landfills
Soilgroundwater contamination Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular
monitoring of known groundwater contamination
ffective 3 Moderate E Unlikely Low 21
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure
Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement Action Owner
Strategic or Approved Action
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
36 Environmen tal Services
Environment al incidents decommissio ningdemolitio n
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for
decommissioningdemolition activities) IMS Incident Management System
ffective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
37 Environmen tal Services
Environment al awareness decommissio ningdemolitio n
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for
decommissioningdemolition activities) training and induction records (for decommissioning
demolition induction)
ffective 4 Minor E Unlikely Low 23
38 Environmen tal Services
Environment al auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition requirements (eg demolition
approval conditions)
ffective 3 Moderate E Unlikely Low 21
39 Environmen tal Services
Community complaints decommissio ningdemolitio n
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to complainant
Complaints Register Internal media advisor Reporting to
management
ffective 3 Moderate E Unlikely Low 21
40 Environmen tal Services
Annual community consultation post operation
Community perception of organisation
Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Compliance calendar ffective 3 Moderate E Unlikely Low 21
41 Environmen tal Services
Potable water use decommissio ningdemolitio n
Excessive potable water use
Resource waste
Water overuse financial cost increased risk of
Gulf contamination Resource 3 Moderate E Unlikely Low 21
Re-location of services prior to demolition
ffective 4 Minor E Unlikely Low 23
bullbull -~J- alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 8 Playford Power Stations as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
1 General Office activities
Energy use Resource use Energy overuse Resource 5 Insignificant C Likely Low 22
waste disposal costs and recyclingsalvage revenue
E ective 5 Insignificant C Likely Low 22
2 General
General waste management
General waste Resource use
Excessive waste generation Resource 4 Minor C Likely Medium 17
Waste segregation JSP 320 Unloading and Handling of Rubbish
Skips monitor re contamination E ective 5 Insignificant E Unlikely Low 25
3
General equipment
decommission ing
Industrial waste management (ex-asbestos) (Waste oil considered separately)
Industrial waste [local] storage and transport to site storage area
Waste disposalrecycling soilgroundwater contamination
Improper waste disposal contamination of waste
destination enforcement action Waste 3 Moderate C Likely High 11
Waste Management at APS S38 Disposal Procedure for Aerosol cans
etc S311 Storage Handling and Disposal of solvents etc amp S315 Storage Handling and Disposal of waste oil JSP 320 Unloading and
Handling of Rubbish Skips monitor to ensure clear identification
samplinganalysis if required Maintain waste disposal records (eg WTCs or
WTFs)
E ective 3 Moderate E Unlikely Low 21
4 APS post
production
Asbestos management
Asbestos removal storage and disposal
Air quality
Airborne asbestos enforcement action
Human Health 2 Major D Possible High 12
S32 Asbestos Management System amp site procedures qualified contractor S37 Guidelines for the safe use of insulation of materials containing
SMFs Asbestos Register air monitoring waste disposal records
(WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
5 General
decommission ing
Industrial Waste water (contaminate d drains and ash)
Overflows Marine pollution
Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 2 Major E Unlikely Medium 18
JSP117 Drain cleaning amp JSP228 Ash Pit cleaning block drains within work
areas that discharge directly to marine environment if practicable Emergency
Response Plan Spill response IMS water monitoring programme disposal
records (WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
13 Heath Safety
amp Security
Implement contingency plan decommissio ningdemoliti on
environmental contingencies
Environmental harm
Nil Improper process in place Procedural 2 Major E Unlikely Medium 18
Emergency response plans (reviewed annually) review for decommissioning demolition activities (after project plan
has been developed) Crisis Management Plan Review response
equipment and training Support procedures eg Incident Management System Station Instruction S17 (Spill
Response) S316 (Spill Reporting) S18 (Fire Reporting) S4G29 Hazard
inspections amp JSP385 Use of emergency boat IMS IMS
E ective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm
Alinta Energy Earlymid 2016
14 Heath Safety
amp Security
Fire on site decommissio ningdemoliti on
Contaminated fire water discharge
Water quality
Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 2 Major E Unlikely Medium 18
Contaminated drains system Emergency Response Plan Crisis
Management Plan review options re containment of fire water eg within
ABC Lake in preference to discharge to ash pond storage Maintenance
routines Station Instruction S17 (Spill Response) IMS Plant monitoring
E ective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
15 Heath Safety
amp Security
Site security decommissio ningdemoliti on
vandalism Site amenity
Site damage injury to persons Security 3 Moderate D Possible Medium 16 Site security systems Emergency
Response Plan E ective 3 Moderate E Unlikely Low 21
16 Heath Safety
amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates records
E ective 4 Minor E Unlikely Low 23
18 Heath Safety
amp Security
Land management landscaping (post decommissio ningdemoliti on)
Maintaining amp improving landscaping
Improved site amenity
Poor visual amenity soil erosion dust
Environmental Final landforms and potential
landscaping plan E ective
19 Heath Safety
amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections E ective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
20 Heath Safety
amp Security
Waste recycling area(s) decommissio ningdemoliti on
Waste management
Resource use
Improper waste disposal contamination of waste
destination enforcement action Resource 3 Moderate E Unlikely Low 21
Waste segregation (to improve recycling re-use) Waste management
Process Site Map S311 Storage Handling and Disposal of solvents etc Determine if the area is adequate for
decommissioningdemolition Establish additional areas for staging of material prior to re-use on site andor disposal
Control runoff (via containment pond(s) Site inspections routine visits by external recycling contractor S37
Guidelines for the safe use of insulation materials containing SMF
waste recycling records Waste disposal records (WTCs and WTFs)
E ective 4 Minor E Unlikely Low 23
21 Heath Safety
amp Security
Disposal of mercury-containing lighting (eg fluoros) decommissio ning
Landfill Soilgroundwater contamination
Improper waste disposal contamination of waste
destination enforcement action Resource 4 Minor E Unlikely Low 23
Waste segregation managed by appropriate waste management company Waste management
Process Site Map S38 Disposal Procedure for Aerosol cans empty
fluid drums small batteries permalubes and mercury globes
Provide labelled containers (eg 200L drums) for storage prior to removal Waste disposal records (WTCs and
WTFs)
E ective 5 Insignificant E Unlikely Low 25
22 Heath Safety
amp Security
Road traffic decommissio ningdemoliti on
Dust emissions Air quality
Limit exceedence public nuisance complaints
enforcement action Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust suppressant if required) Hi
VolDustTrak dust monitoring on site boundary
E ective 4 Minor E Unlikely Low 23
23 Environmental
Services
Environment al Compliance decommissio ningdemoliti on
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting
environmental checklist for decommissioningdemolition
Surrender of EPA Licence Site Environmental Awareness Induction S4G29 Hazard Inspections update
induction material for decommissioningdemolition Water
Sampling Program stack and ambient monitoring reporting on EMP and
reporting to EPA
E ective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environmental
Services
Site environmenta l performance monitoring decommissio ningdemoliti on
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS
Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during decommissioningdemolition (eg HI_Vol and noise) IMS regular
monitoring reports (eg weekly) Monitoring programmes and regular
reporting
E ective 3 Moderate E Unlikely Low 21
32 Environmental
Services
Discharges into the marine environment decommissio ningdemoliti on (including use or removal of bulk chemicals)
Contaminated drains SPELS
Water quality
Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 2 Major E Unlikely Medium 18
Chemical oil and fuel bunding oil separation stormwater segregation
monitoring of stormwater control systems S310 (Ferrous sulphate) S311 (Solvents) S313 (Sodium
hypochlorite) S315 (Waste oil) Pump outs Decommissioning and demolition
within containment (minimise direct discharges to marine environment)
Emergency Response Plan IMS water monitoring programme site
inspections
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
33 Environmental
Services
Site operations decommissio ningdemoliti on
Noise Nuisance
Public nuisance complaints enforcement action
Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm weekdays 8am-
6pm weekends) boundary noise monitoring
E ective 3 Moderate E Unlikely Low 21
35 Environmental
Services
Historical operations post decommissio ningdemoliti on
Discharges to soilgroundwater landfills
Soilgroundwater contamination
Soilgroundwater contamination clean up actions enforcement
actions Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular monitoring of
known groundwater contamination E ective 3 Moderate E Unlikely Low 21
36 Environmental
Services
Environment al incidents decommissio ningdemoliti on
Various Environmental harm
Nil Improper process in place Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for decommissioningdemolition activities)
IMS Incident Management System E ective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
37 Environmental
Services
Environment al awareness decommissio ningdemoliti on
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for
decommissioningdemolition activities) training and induction records (for
decommissioning demolition induction)
E ective 4 Minor E Unlikely Low 23
38 Environmental
Services
Environment al auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition
requirements (eg demolition approval conditions)
E ective 3 Moderate E Unlikely Low 21
39 Environmental
Services
Community complaints decommissio ningdemoliti on
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to complainant Complaints Register
Internal media advisor Reporting to management
E ective 3 Moderate E Unlikely Low 21
40 Environmental
Services
Annual community consultation post operation
Community perception of organisation
Non compliance
Nil Improper process in place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar E ective 3 Moderate E Unlikely Low 21
41 Environmental
Services
Potable water use decommissio ningdemoliti on
Excessive potable water use
Resource waste
Water overuse financial cost increased risk of Gulf
contamination Resource 3 Moderate E Unlikely Low 21
Re-location of services prior to demolition
E ective 4 Minor E Unlikely Low 23
44
Post production
coal stockpile area
Runoff from coal stockpile area (post operation)
Water quality (runoff)
Water quality Soilgroundwater contamination clean up actions enforcement
actions Environmental 3 Moderate C Likely High 11
Collection no direct marine discharges water monitoring programme
E ective 4 Minor E Unlikely Low 23
45
Post production
coal stockpile area
Post operation coal stockpile area
Fire (spontaneous combustion)
Air quality Fire smokeparticulate
emissions public amp personnel exposure
Fire 3 Moderate E Unlikely Low 21
Develop strategy to reduce risks of spon com In post operational coal stockpile area Monitoring by Alinta
staff IMS
E ective 4 Minor E Unlikely Low 23
46
Post production
coal conveyors
Coal conveyors
Coal dust (conveyorstransfer s)
Air quality Personnel exposure limit
exceedence public nuisance complaints enforcement action
Environmental 3 Moderate C Likely High 11 wash down of built up dust E ective 5 Insignificant E Unlikely Low 25
47 Post
production coal bins
Coal bin storage
Coal dust Air quality Personnel exposure limit
exceedence public nuisance complaints enforcement action
Environmental 3 Moderate D Possible Medium 16 Wash down of built up dust ambient
monitoring maintenance records E ective 3 Moderate E Unlikely Low 21
48
Fireexplosion Air quality
Coal dust explosion Fire 2 Major D Possible High 12
Review risk assessments for decommissioningdemolition
Emergency Response Plan IMS E ective 3 Moderate E Unlikely Low 21
49 APS post production
Coal plant washdown
Marine discharge Water quality Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 4 Minor D Possible Low 20
Containment of washwater JSP 107 Bunker Washing water monitoring
programme E ective 4 Minor E Unlikely Low 23
50 APS post production
Decommissio ningdemoliti on
Oil spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate E Unlikely Low 21
Contaminated drain system S17 Oil Spill Procedure review and enhance
containment options Emergency Response Plan IMS Maintenance
records
E ective 4 Minor E Unlikely Low 23
51 APS post production
Decommissio ningdemoliti on
Fuel oil spillage (eg gun malfunction)
Water quality Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate D Possible Medium 16
Operating controls S17 Oil Spill procedure contaminated drains Emergency Response Plan IMS
E ective 3 Moderate E Unlikely Low 21
52 APS post
production
Decommissio ningdemoliti on
Seawater flow Ecological impact (eg fauna loss)
ReductionIncrease in number amp abundance of local marine
species Environmental 3 Moderate E Unlikely Low 21
Review options for cooling water channels (eg breach wall)
E ective 3 Moderate E Unlikely Low 21
53 APS post
production
Decommissio ningdemoliti on
Contamination of condenser cooling water
Ecological impact
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major E Unlikely Medium 18
Review options for condensers (post production) visual
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
54 APS post
production
Boiler water drainage
Treated water discharge
Water quality Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 4 Minor D Possible Low 20
drainage into Ash pit Operating controls ambient water monitoring
programme E ective 4 Minor E Unlikely Low 23
59 APS post
production
Fly ashbottom ash handling systems decommissio ningdemoliti on
Spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major E Unlikely
Flush ash systems to ash storage area water monitoring programme
E ective 4 Minor E Unlikely Low 23
60 APS post
production
Fly ash re-use storage and handling area
Spillage Water quality Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 4 Minor D Possible
Empty and washdown plant Discharge to containment area
E ective 4 Minor E Unlikely Low 23
61 APS post
production
Decommissio ningdemoliti on
Contamination of flow to ash storage pond (eg oil)
Water quality
Spill entering ash disposal system discharge to Gulf
waters enforcement action Environmental 3 Moderate D Possible
Contaminated drains oil containment oil handling ash pond controls Ash
storage dam inspections Emergency Response Plan IMS inspection
records
E ective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
64 APS post
production
Oil removal Oil spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate C Likely High 11
Station Instructions S17 Oil Spill procedure S315 Storage Handling and Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil treatment plant Contaminated drain system Emergency Response Plan IMS water monitoring programme
E ective 4 Minor E Unlikely Low 23
65 APS post
production
Waste oil storage
Oil spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate C Likely High 11
Bunded storage S17 Oil Spill procedure S315 Storage Handling and Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil
treatment plant Emergency Response Plan IMS water monitoring
programme
E ective 3 Moderate E Unlikely Low 21
66 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up actions enforcement
actions Environmental 2 Major E Unlikely Medium 18
Bunded storage Emergency Response Plan Spill response IMS
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
67 APS post
production
Fire Air quality
Fire personnel exposure Fire 3 Moderate E Unlikely Low 21
Storage controls (minimise ignition sources) Emergency Response Plan
Crisis Management Plan IMS E ective 3 Moderate E Unlikely Low 21
68 APS post
production
Discharges into the marine environment
Contaminated drains SPELS
Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major D Possible High 12
Chemical oil and fuel bunding oil separation maintenance of SPEL
tanks stormwater segregation review of routine to inspect SPEL tanks
Emergency Response Plan IMS water monitoring programme site
inspections SPEL cleanout routines
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
69 APS post
production
Oil -filled electrical equipment decommissio ning and removal
Leakage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major E Unlikely Medium 18
Bunding S17 Oil Spill procedure JSP271 NPS Step-up Unit transformer amp line isolator
maintenance Emergency Response Plan Crisis Management Plan IMS monitoring of oil properties (eg PCB
content)
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
70 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up actions enforcement
actions Environmental 2 Major E Unlikely Medium 18
Containment of oil-filled equipment Emergency Response Plan
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
71 APS post
production
Fire explosion Air quality
Fire personnel exposure Fire 2 Major E Unlikely Medium 18 Permits containment E ective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
79 APS post
production
Demolition general
Lead emissions (from lead-based paints)
Personnel exposure limit exceedence public nuisance
complaints enforcement action Environmental 3 Moderate E Unlikely Low 21
lead paint testing dust control processes Maintenance routines lead
in paint testing (as required) and recorded
E ective 4 Minor E Unlikely Low 23
80 APS post
production
Refrigeration air conditioning servicing decommissio ning (as required)
Release of ozone depleting substances
Depletion of Ozone layer
Environmental harm regulatory enforcement
Environmental 3 Moderate D Possible Medium 16
ARC licensed operators ozone-depleting gas reclaim for
decommissioned equipment Audits based on ARC requirements JSP372 Air Conditioner Maintenance Records
of ozone-depleting substances reclaim etc
E ective 3 Moderate E Unlikely Low 21
81 APS post
production
Sewerage system relocation of services (caused by decommissio ning and demolition)
Sewage overflow Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 4 Minor D Possible Low 20
Response to sewer chokes JSP028 Sewage Pit pump and control repairs
Emergency Response Plan IMS E ective 4 Minor E Unlikely Low 23
82 APS post
production
PPS Seawall collapserem oval
Loss of material into marine environment
Water Quality Contaminated material entering
the Gulf damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18 Site inspections E ective 2 Major E Unlikely Medium 18
83 APS post
production
Earthworks Project-specific erosion and sedimentation
Project-specific marine contamination Soilsedimentash entering onsite
drains system discharge to Gulf waters enforcement action
Environmental
Project-specific EMP (by contractor(s)) APS Change Request (Form C1-1) Change Management
Procedure HSRP 330 erosion controls Project Management Manual Project-
specific water quality
E ective
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
96 Playford
Power Station demolition
Septic systems decommissio ning
Spillage Water quality HAZMAT scenario water soil amp groundwater contamination
clean up actions enforcement actions
Environmental 4 Minor D Possible Low 20 Arrange pump-outs E ective 4 Minor E Unlikely Low 23
97 Playford
Power Station demolition
Demolition stacks
Contaminated brick work
Incorrect disposal Improper waste disposal contamination of waste
destination enforcement action Waste 2 Major E Unlikely Medium 18
Containment of waste material Samplinganalysis to determine
disposal options Disposal records (eg WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
Appendix B
Augusta Power Stations
NPS Facility
Make Safe Manual
Revision Date Description Prepared by Reviewed by Approved by
0 29116 Initial draft
1 23216 First revision PMAPS FM
2 29216 Second revision ndash removed FM from activities
PMAPS FM
3 51016 Corrections
Distribution List
TBA
Decommissioning Manual ndash NPS
Index
1 Introduction 4
2 Closure Philosophy 4
3 Closure Strategy 4
4 Responsibilities 4
5 Titles 4
6 BoilerGenerator Unit 5
61 Turbine 5
611 Turbine Oil System 5
612 Condenser Condensate side 5
613 Condenser Seawater side 6
614 Turbine Valves 7
62 Generator 7
621 Hydrogen System 7
63 CW System 8
631 Chambers 8
632 CW pumps 9
633 CW Screens 9
634 CW Ducts 10
64 Feedwater System 10
641 LP Feedwater 10
642 Boiler feed Pumps 11
643 HP Feedwater 11
641 Feed Make-up 12
65 Boiler 12
651 Pressure parts 12
652 Furnace and Gas path 13
66 Draught Plant 14
67 Valves 15
68 Main Pipework 15
69 ACW System 16
691 ACW Seawater Side 16
692 ACW Fresh water Side 16
610 Coal System 17
6101 Train Unloading 17
6102 Bins and Bunkers 17
6103 Conveyors 18
6104 Coal Feeders 18
6105 Mills 19
611 Fuel oil system 19
6111 Fuel oil pumps 19
6112 Fuel Oil Storage 20
612 Ash System 21
6121 Sluice Pumps 21
6122 Hoppers 21
6123 Precips 22
6124 Deasher 22
Appendix B NPS Make Safe Manual Correcteddocx - 2 -
6125 Ash Pit 23
7 Electrical Systems 23
71 Control Systems 23
72 Instrumentation 24
73 DC System 24
731 220 V System 24
732 110 V System 25
733 24 V System 25
74 HV 26
741 High Voltage Disconnections 26
75 Switchboards 26
751 66 kv 26
76 Transformers 27
77 Diesel Generators 27
8 Station Auxilliaries 28
81 Aux blr 28
82 Compressed Air System 28
83 Water treatment plant 29
84 Fire protection System 29
85 Cranes and Lifts 30
86 TW and Drains system 31
87 Stack 31
9 Services 32
91 Workshops 32
92 Heavy machine and Mobile Plant 33
93 Admin 34
94 Document information and management 34
95 Security 35
10 Infrastructure of Interest 35
101 CW System 36
102 Workshops 36
103 Water storage tanks 37
104 PPS Diesel Fire pumps 37
11 Appendix 37
111 Legal and other Requirements 37
1111 Legislation and Strategies 37
1112 Alinta Policies 38
112 References 39
113 Project Plan 40
114 NPS Administration 40
1141 NPS Isolations 40
1142 NPS Closure Audit 40
115 NPS Residual Risks 41
Appendix B NPS Make Safe Manual Correcteddocx - 3 -
1 Introduction
The Northern Power Station has been operating in a flexible generating profile and has been able to respond to Market opportunities over the past few years Since the application of Scenario 1 to NPS generation profiles and significant increase in Wind and Solar generation in the SA market it has become increasingly difficult to maintain a commercial return on APS Electricity Production This has resulted in a decision by the Alinta Board to close the Power Station in Q2 of 2016
2 Closure Philosophy
The closures of the NPS site are outlined in the Lease Agreement and require Alinta to rehabilitate the APS site to its pre-developed condition The Closure Plan seeks to facilitate the removal of the Power Station infrastructure to manage all of the Asset removal with no impact on the surrounding environsrsquo meet all condition of the Lease Agreement and Legislative requirements
Alinta acknowledges that the demolition and site rehabilitation works are deemed to be lsquoHigh Riskrsquo work activities and will ensure appropriate management of this work in accordance with WHS Act 2012 and Regulations
Alinta will ensure the key principle of lsquoZero Harmrsquo will be embedded in all activities associated with the Closure Disposal and Remediation of the NPS site in accordance with the Lease Agreement
3 Closure Strategy
The focus of this manual is to outline activities to be carried out to make the plant safe for disposaldemolition by third parties
Key objectives are to remove all foreseeable hazards to the environment and salvagedemolition personnel during the remediation programme
4 Responsibilities
The `Plant managerrsquo will seek approval of Closure plans and allocate resources to implement the effective management and Make Safe activities of the NPS site prior to handover to the Facilities Manager and contractors for demolitionrehabilitation
The lsquoFacilities Managerrsquo and the Project team will communicate the sequence and timing of activities in accordance with this plan to internal stakeholders and external parties and contractors as required The FM will also lead a small team of experts to oversee the demolition and remediation activities
5 Titles
Facilities Manager - FM Operations amp Maintenance Manager ndash OMM Production Manager Augusta - PMA Scientific Services an Chemical Superintendent - SSCS
Appendix B NPS Make Safe Manual Correcteddocx - 4 -
6 BoilerGenerator Unit
61 Turbine
611 Turbine Oil System
Asset Management Strategy
Remove hazards present to the environment and personnel from the Lube oil systems during decommissioning
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommission operation
Item Plant Description Proposed Actions Responsibility
1 Lube Oil System Drain all lube oil and seal oil to main tank OMM
2 Lube Oil Tank
Monitor lube oil tank for potential leaks until handover to FM and contactors for final decommissioing OMM
3 Oil pumps Isolate electrical supplies to Oil Pumps OMM
4 Seal oil tank Drain the Seal Oil system OMM
5 Seal oil pumps Isolate electrical supplies to Seal Oil Pumps OMM
612 Condenser Condensate side
Asset Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 5 -
Eliminate the possibility of toxic gases andor pressure build up in the system during decommissioning
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Item Plant Description Proposed Actions Responsibility
Condenser and CEPrsquos
Open all drain vvrsquos and open up condenser doors OMMOMM
CEP MotorPump Drain motor and Pump oil OMM
613 Condenser Seawater side
Asset Management Strategy Minimise build-up of toxic gases from decomposed marine growth in the Condenser
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Item Plant Description Proposed Actions Responsibility
1 Condenser Seawater side
Open all condenser drain valves once the condenser is isolated from the CW chamber OMM
Gas test for toxic gases OMM
Appendix B NPS Make Safe Manual Correcteddocx - 6 -
614 Turbine Valves
Asset Management Strategy Minimise hazards to the environment and personnel in the Valve Control oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
ITEM Plant Description Proposed Actions Responsibility
1 Major turbine vvrsquos Isolate electrical supplies to Valves OMM
11 Drain control oil actuators and pipework OMM
2 HP and LP By-pass vvrsquos
Decommission and drain Control stations and accumulators OMM
62 Generator
521 Generator Rotor
Asset Management Strategy Removing hazards to the environment and personnel from the Generators
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Item Plant Description Proposed Actions Responsibility
Generator Casing
Isolate hydrogen from generator case and purge casing OMM
621 Hydrogen System
Asset Management Strategy Shutdown Hydrogen system to prevent any risk of hydrogen fuelled fire or explosion
Appendix B NPS Make Safe Manual Correcteddocx - 7 -
Controls The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 Hydrogen System
Shut down isolate and purge Hydrogen system OMMSSCS
2 Hydrogen System
Remove all Hydrogen supplies from site once second Unit is OOS OMM
63 CW System
631 Chambers
Asset Management Strategy Isolate the inletoutlet channel water from the Condenser basements
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
CW pumps
Fit blanks to the CW pump discharge pipe to isolate the chamber from the Condenser basement
OMM
CW pump Drain Oil from pump OMM
Taprogge recirc pumps Drain oil from pumps OMM
Dosing pumps (hypo chlorFE chlor Drain oil from pumps OMM
Chlorine Plant Shut down and flush chemicals from lines SSCS
Appendix B NPS Make Safe Manual Correcteddocx - 8 -
Chlorine plant pipework Drain and dry store SSCS
Electrolysers Drain and dry store SSCS
Chlorine storage tank Drain and dry store SSCS
632 CW pumps
Asset Management Strategy Remove environmental contaminants from CW pumps
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
5321
CW pumps Drain oil from CW pp bearings OMM
CW Pump Motors Isolate motor heaters OMM
Empty chamber remove CW pumps and blank off CW pump discharge pipe OMM
633 CW Screens
Asset Management Strategy Remove environmental contaminants from CW screens
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Appendix B NPS Make Safe Manual Correcteddocx - 9 -
Plant Description Proposed Actions Responsibility
5331
CW Screens Drain oil from CW screen gearboxes not required by third party OMM
634 CW Ducts
Asset Management Strategy Minimise build-up of toxic gases from decomposed marine growth in the Condenser
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommission operation
Plant Description Proposed Actions Responsibility
5331
CW Ducts Isolate from CW chamber and pump dry OMM
64 Feedwater System
641 LP Feedwater
Asset Management Strategy Eliminate the possibility of gases andor pressure build-up in the system
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
LP feedheaters Open drains and doors OMM
GS Condenser Open drains and doors OMM
Appendix B NPS Make Safe Manual Correcteddocx - 10 -
LP Ejector Open drains and doors OMM
Deaerator and DAFT Open drains and doors OMM
DA off load circ pump Drain oil from pump OMM
Ammonia dosing pump Drain oil from pump OMM
642 Boiler feed Pumps
Asset Management Strategy Remove any hazards to the environment or personnel in the Boiler Feed pumps
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
1
Boiler feed pp amp DAFT header Isolate and drain system OMM
Drain oil from BFPrsquos and GTDrsquos OMM
643 HP Feedwater
Asset Management Strategy Minimise possibility of gases andor pressure build up in the system
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Appendix B NPS Make Safe Manual Correcteddocx - 11 -
Plant Description Proposed Actions Responsibility
HP6 amp 7 Drain HP Heater shell and store dry OMM
Drain Feedwater side and store dry OMM
641 Feed Make-up
Asset Management Strategy
Drain systems to minimise internal corrosion
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 Feedwater make up heater Drain and store dry OMM
2 Hot Condesate Storage tank Drain and store dry OMM
3 RFW Tanks Drain and store dry OMM
65 Boiler
651 Pressure parts
Asset Management Strategy Minimise possibility of gases andor pressure build up in the system
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Appendix B NPS Make Safe Manual Correcteddocx - 12 -
Plant Description Proposed Actions Responsibility
Boiler Tubes amp Superheaters
Boilers to be removed from service amp drained hot OMM
Open up all drains and vents OMM
Valves - general Drain oil from actuators OMM
Valves - Blr safety vvrsquos Relieve spring tension OMM
Blowdown vessels Ensure drain vvs are open OMM
652 Furnace and Gas path
Asset Management Strategy
To ensure furnace is clear of ashslag deposits to minimise the potential for corrosion and environmental contamination during the Care period
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1
Furnace super htr area and penthouse
Gas path to be washed including penthouse All dead spaces including inside nose and either side of boiler throat all ash hoppers to be cleaned amp left dry OMM
2 Water walls Washed out after shut down and dry store OMM
3 Economiser Washed out after shut down and dry store OMM
Appendix B NPS Make Safe Manual Correcteddocx - 13 -
66 Draught Plant
Asset Management Strategy Minimise any residual hazards remaining in the Draught Plant
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
Air heaters WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
ID fans WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
PA fans WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
SA fan WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
GR fans WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
Appendix B NPS Make Safe Manual Correcteddocx - 14 -
ID PA SA GR Motors Disconnect motor heater power supplies OMM
DuctsDampers WashedVaccuumed out OMM
Drain oil from damperactuator gearboxes OMM
67 Valves
Asset Management Strategy Minimise any residual hazards or kinetic energy remaining in the valves on site
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Selected safety valves
Relieve all spring tensions based on individual risk assesments OMM
68 Main Pipework
Asset Management Strategy Minimise any residual hazards remaining in the Pipework
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Main pipework from Boiler to Turbine Open all vents and drains OMM
Appendix B NPS Make Safe Manual Correcteddocx - 15 -
69 ACW System
691 ACW Seawater Side
Asset Management Strategy Minimise build-up of toxic gases from decomposing marine growth in the ACW pipework and heat exchangers and remove environmental hazards
Controls The following controls have been identified to eliminate the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Heat exchangers Isolate and drain heaters of seawater OMM
ACW pumps Drain oil from the bearings OMM
ACW system Open all drains and vents OMM
Test for toxic gases OMMSSCS
692 ACW Fresh water Side
Asset Management Strategy Remove environmental hazards from the ACW system
Controls The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Coolers Drain all ACW coolers OMM
Pumps Drain oil from pumps OMM
Appendix B NPS Make Safe Manual Correcteddocx - 16 -
610 Coal System
6101 Train Unloading
Asset Management Strategy To minimise environmental hazards
Controls
The following controls have been identified to minimise the hazards to the environment
Plant Description Proposed Actions Responsibility
Train unloader WashVaccuum all hoppers feeders and conveyor systems OMM
Unloader walls
Monitor water level in Unloader pitValve in wall to be opened periodically to relieve water pressure on walls Note Needs to be condition included in transfer agreement OMM
Unloader sump
Unloader sump pump will need to be maintained Note Once supply to Unloader is decommissioned sump pump will not operate OMM
6102 Bins and Bunkers
Asset Management Strategy To minimise environmental hazards
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Bins Emptied and washed out OMM
Ploughs Park ploughs in bypass position and wash down OMM
Appendix B NPS Make Safe Manual Correcteddocx - 17 -
Drain gearbox oils OMM
Trippers Wash down trippers OMM
Drain gearbox oils OMM
Bunkers Empty and Wash out bunkers OMM
6103 Conveyors
Asset Management Strategy Remove environmental kinetic energy and fire hazards from the coal system
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Conveyors Shutdown Coal conveyor systems and wash down OMM
Conveyors Drain oil from gearboxes OMM
Release belt tensioners and lower weights to the ground and secure OMM
Coal line Fire System
Maintain fire detection and deluge systems until Make safe is complete in accordance with OEM OMM
Coal line Fire System
Maintain fire detection and deluge systems in accordance with OEM OMM
6104 Coal Feeders
Asset Management Strategy To minimise environmental hazards
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 18 -
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Mill feeders Emptied out on shutdown and washed out for dry store OMM
Mill feeders Drain gearbox oils OMM
6105 Mills
Asset Management Strategy Remove environmental contaminants and kinetic energy from the coal Mills
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Mills Empty out Mills and wash out for dry store OMM
Mills
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
Release mill roller spring tension OMM
611 Fuel oil system
6111 Fuel oil pumps
Asset Management Strategy Remove environmental contaminants from Fuel oil system
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Appendix B NPS Make Safe Manual Correcteddocx - 19 -
Plant Description Proposed Actions Responsibility
Oil guns
Remove guns and store in Mills Workshop with supply lines capped and nozzles plugged OMM
FO heaters Drain fuel oil heaters OMM
FO pipework Drain fuel oil pipework OMM
FO transfer pps Drain bearing oil OMM
6112 Fuel Oil Storage
Asset Management Strategy Remove environmental contaminants from Fuel oil system
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
FO storage Run stocks of FO to minimum level PMA
Monitor FO storage tanks and distribution system for potential leaks prior to handover to FM for contactor final decommissioning OMM
FO Service Tank Run stocks of FO to minimum level PMA
Clean storage tanks of residual oil to eliminate potential leakrsquos to the environment during storage and de-commissioning Inspect internally prior to removal FM
Appendix B NPS Make Safe Manual Correcteddocx - 20 -
612 Ash System
6121 Sluice Pumps
Asset Management Strategy
Drain systems to minimise internal corrosion and marine growth
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 HP amp LP Sluice pump pipework Drain all pipework and dry store OMM
2 LP Sluice Pumps Isolate pumps OMM
3 HP Sluice pumps Drain pump bodies and dry store OMM
6122 Hoppers
Asset Management Strategy
Reduce the risk of ash hang ups and internal hopper corrosion during an Care period
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 Third pass Wash out hoppers after shutdown and dry store Remove E vvrsquos OMM
2 Primary Air Heater Hoppers
Wash out hoppers after shutdown and dry store Remove E vvrsquos OMM
3 Secondary Air Heater Hoppers
Wash out hoppers after shutdown and dry store Remove e vvrsquos OMM
Appendix B NPS Make Safe Manual Correcteddocx - 21 -
4 Precip Hoppers
Remove E Valves Wash down Precip and Hoppers dry out with hopper heater for 24 hours and isolate heaters and dry store OMM
5 Ash Transfer Plant
Empty and wash out vessels dry store Isolate all Electrical and Air Supplies to Ash Transfer plant OMM
6 Ash Silo Empty and wash out vessels dry store Isolate all electrical supplies to Silo OMM
6123 Precips
Asset Management Strategy Remove environmental contaminants from Precipitators
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Internals Full wash of Precip internals Open doors and allow to dry OMM
Rappers Drain oil from rapper gearboxes OMM
6124 Deasher
Asset Management Strategy Remove environmental contaminants from Deashers
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
De-asher
Remove the de-asher to the maintenance position and wash out for dry store Barricade bottom of boiler to restrict access while de-asher removed OMM
Appendix B NPS Make Safe Manual Correcteddocx - 22 -
7
Crusher
Wash out ash crusher
OMM
De-asher Drain oil from hydraulic units OMM
Crusher Drain oil from crusher gearbox OMM
6125 Ash Pit
Asset Management Strategy
Maintain storm water control for the duration of decommissioning
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Ash pit
Install a suitably sized submersible pump connected to one of the Ash Pond discharge pipes to cater for rain events prior to handover to FM and contractors for final decommissioning
OMM
Electrical Systems
71 Control Systems
Asset Management Strategy Minimise the risk of residual power sources associated with the control systems
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Appendix B NPS Make Safe Manual Correcteddocx - 23 -
Plant Description Proposed Actions Responsibility
FCS Battery systems Remove low voltage DC battery packs OMM
Fire Safety System Remove DC inverter OMM
72 Instrumentation
Asset Management Strategy Eliminate the risk of electric shock from residual power sources
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Instruments o2 press temp hydrogen analysers cameras oil flows water quality level
Remove tag with KKS amp Physical location and store in Instrument Workshop
OMM
AC Supply to FCS stations
Isolate AC supply to FCS stations
OMM
Inverter Supply Isolate and decommission Inverter supplies to Control System
OMM
73 DC System
731 220 V System
Asset Management Strategy Minimise the risk of DC Arc flash and LeadAcid hazards
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 24 -
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
220V Batt Charger and bank
Decommission battery charger and remove batteries Wash down battery stands and floors to remove residual sulphuric hazards OMM
732 110 V System
Asset Management Strategy Minimise the risk of DC Arc flash andndash LeadAcid hazards
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
110V Batt Charger and bank
Monitor 220v amp 110v battery systems until handover to FM and contactors for final decommissioning To be included in contractor agreement (Decommission battery charger and remove batteries once 275kV lines are decommissioned (line protection) Wash down battery stands and floors to remove residual sulphuric hazards) OMM
733 24 V System
Asset Management Strategy Minimise the risk of DC Arc flash andndash LeadAcid hazards
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
24V Batt charger and bank
Decommission battery charger and remove batteries Wash down battery stands and floors to
OMM
Appendix B NPS Make Safe Manual Correcteddocx - 25 -
I I
remove residual sulphuric hazards
74 HV
741 High Voltage Disconnections
Asset Management Strategy Apply a perimeter isolation to the 275132kV switchyards to Eliminate risk of Electric Shock by disconnecting all HV supplies at major terminal points in switchyards Eliminate the possibility of a transformer oil spill to the surrounding environment
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
275kV supply
Maintain protection systems for 275kV system until handover to FM to arrange disconnection agreement with Electrenet OMM
132kV Disconnect from House transformer OMM
75 Switchboards
751 66 kv
Asset Management Strategy To remove any kinetic energy stored in the 66kV switchgear
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Appendix B NPS Make Safe Manual Correcteddocx - 26 -
66 Breakers Rack out breakers and discharge spring tension OMM
76 Transformers
Asset Management Strategy
Eliminate the possibility of a transformer oil spill to the surrounding environment
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
275kV Transformer
Isolate 275kV at connection point at switchyard
OMM
Monitor all transformers for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Drain all transformer oil and box up transformer case )
OMM
132kV Transformer (House)
Monitor all transformers for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Drain all transformer oil and box up transformer case )
OMM
77 Diesel Generators
Asset Management Strategy Remove the Diesel Generators from service
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Appendix B NPS Make Safe Manual Correcteddocx - 27 -
8
Plant Description Proposed Actions Responsibility
Diesel Generators
Monitor Diesel Gensets for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Remove Gensets from service) OMM
Station Auxilliaries
81 Aux blr
Asset Management Strategy Remove any remaining residual contaminants
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Aux Boiler Fuel Oil Tank
Monitor Aux Boiler FO system for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Drain Aux Boiler FO tank) OMM
82 Compressed Air System
Asset Management Strategy Shut down assets and depressurise the system and remove environmental contaminants
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 28 -
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Air compressors
Monitor Compressors for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Decommission compressors and separators) FM
83 Water treatment plant
Asset Management Strategy Remove any remaining residual contaminants Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Reverse Osmosis Plant
Decommission and store in accordance with OEM recommendation
OMMSSCS
Water treatment Plant
Drain all vessels remove all resins chemical and dispose of Dry store all tanks and vessels
Remove all Resin and put to land fill OMMSSCS
84 Fire protection System
Asset Management Strategy
Decommission fire protection system and remove environmental contaminants
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Appendix B NPS Make Safe Manual Correcteddocx - 29 -
I I
Plant Description Proposed Actions Responsibility
Fire feedwater Isolate town water to fire pumps and drain all mainfolds OMM
Fire Deluge System
Drain fire system at fire pump discharge and at each deluge system OMM
Diesel Fire Pump Decommission drain fuel engine oil and coolant OMM
Electric fire pumps Isolate and decommission OMM
Fire detection system
Isolate and decommission fire detection system including the removal of DCP lead acid batteries OMM
Fire Halon systems
Decommission and remove Halon cyclinders from control room under floor system OMM
Vesda detection system Decommission and remove backup batteries OMM
Portable fire extinguishers
Monitormaintain all fire extinguishers until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Remove all fire extinguishers for site and dispose of) OMM
85 Cranes and Lifts
Asset Management Strategy Decommission and de-register lifts and cranes in preparation for demolition
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Appendix B NPS Make Safe Manual Correcteddocx - 30 -
All Lifts Maintain operation of Turbine Hall and Boiler lifts until handover to FM and contactors for decommissioning
To be included in contractor agreement All lifts to be decommissioned OMM
NPS Cranes Monitor all cranes and hoists for potential oil leaks prior to handover to FM and contractors for decommissioning To be included in contractor agreement (Drain oil from all cranes and hoist gearboxes and decommision) OMM
86 TW and Drains system
Asset Management Strategy
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Contaminated Drains Pit and associated pumps
Maintain in normal operation This ensures any run off from rain event do not carry any pollutants into the surrounding environment without being removed in the contaminated drains pits until handover to FM and contractors for decommissioning Note Once supply to CW switch room is decommissioned the oil skimmer in the sump will no longer operate To be included in contractor agreement (Decommission the contaminated drains system and settling pond) OMM
Condenser Sumps
Installation of temporary submersibles needed to maintain sumps dry if required Note Once Turbine 415V boards are decommissioned sump pumps will no longer operate OMM
87 Stack
Asset Management Strategy
Ensure we meet aviation standards of Stack lighting after Closure
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 31 -
9
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Stack
Provide alternative lighting of the stack to comply with CASA minimum standard for Aviation requirements OMM
Services
91 Workshops
Asset Management Strategy Minimise any hazards that may impact on demolition crews and chemicalgas hazards to surrounding environs
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Tubemakers Storage shed
Inventory and remove all plant tools and equipment for disposal
Salvage all materials held in store
Review and approve contractor demolition plan including sewage system OMM
Appendix B NPS Make Safe Manual Correcteddocx - 32 -
decommissioning and site rehabilitation
Garage Workshop
Decommission all Electrical supplies town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
OMM
Mitsubishi Spares Shed
Decommission all Electrical supplies town water systems to store
Remove all stock and spares for disposal
OMM
Cylinder Store Compound
Remove all stock of gas cylinders and return to suppliers
OMM
Coal Line and Electrical Workshop
Maintain Electrical supplies town water and black water systems to workshop for third party transfer
Inventory and remove all plant tools and equipment for disposal
OMM
Mills Workshop
Decommission all Electrical supplies town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
OMM
Plant Workshop
Decommission all Electrical supplies town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
OMM
Plant Tools and equipment disposal
Commission an auction house to promote and conduct a plant tools and equipment disposal on site on behalf of Alinta OMM
Residual plant tools and equipment
Non disposlable item to be scrapped and removed from site by merchant OMM
92 Heavy machine and Mobile Plant
Appendix B NPS Make Safe Manual Correcteddocx - 33 -
Asset Management Strategy Minimise any hazards that may impact on demolition crews
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Heavy Plant
Inventory heavy plant items and place on consignment with Heavy Machinery reseller This to be done in parallel with Dozing operations on the residual coal stocks held on APS stockpile OMM
Mobile Plant Inventory mobile plant items and place on consignment with Heavy Machinery reseller OMM
Light Vehicle
Develop a light vehicle return strategy as vehicle leases expire sufficient vehicle to conduct Care to Closure activities return all vehicles at the commencement of demolition phase OMM
93 Admin
Asset Management Strategy Minimise any hazards that may impact on demolition crews
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
PA system throughout the workshop offices station and general site
Required for site communications emergency notices and evacuations by skeleton staff
OMM
94 Document information and management
Asset Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 34 -
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Documents Determine what data is required to be stored OMM
Determine where the data will be stored OMM
Historical interest data
Determine who would be interested in taking this PMAPS
Pressure Vessel registration
Advise Worksafe SA when plant is decommissioned OMM
95 Security
Asset Management Strategy To continue site security until such time as Third parties take control
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Security Maintain Security contract OMM
10 Infrastructure of Interest
The following infrastructure and plant has been identified as possibly of Interest to Third Party users after Closure
Appendix B NPS Make Safe Manual Correcteddocx - 35 -
101 CW System
Asset Management Strategy To identify the system requirements of the CW plant for continued use by third party
Assumptions Third party will own operate and maintain CW infrastructure including power supplies and EPA
license requirements
Plant Description Consequential Plant Responsibility
1
Sluice ACW and Sundrop pumps
Power supply ndash 66kV415v transformer will be decommissioned as part of the demolition process Alternative power supply will need to be established to continue operation
OMMThird Party
2
Contaminated drains system
To ensure any contaminent spillage is prevented from entering the surrounding environs The transfer pump pit will remain connected to the 11kV ring feed however the transfer pumps at the Contaminated drains settling pond is currently fed from the town water switch room which will be decommissioned Alternative power supply will need to be established at the settling pond for this system to remain operational
OMMThird Party
102 Workshops
Asset Management Strategy To identify the system requirements of the Workshops at NPS for continued use by third
party
Assumptions Third party will own operate and maintain Workshop buildings including power supplies Town
water and Black water system
Plant Description Consequential Plant Responsibility
Workshops
Town water reticulation will need to be dispersed between third parties with separation of metering points Black water system backbone will need to be retained Existing Power supplies may be disconnected during demolition 11kV 415v pad mount will
OMMThird Party
Appendix B NPS Make Safe Manual Correcteddocx - 36 -
need to be installed at the WTP to supply the Mech workshop Existing 11kV 415v pad mount power supply to Electrical workshop should remain if required
103 Water storage tanks
Asset Management Strategy To identify the functionality requirements of the Town Water storage tanks for continued use
by third party
Assumptions Third party will own operate and maintain Town Water storage tanks including water connection
and agreement with SA Water
Plant Description Consequential Plant Responsibility
Town water storage tanks
Town water supply from SA Water Alternative power supply for TW switchroom and associated pumps will be required to keep this plant operational
OMMThird Party
104 PPS Diesel Fire pumps
Asset Management Strategy To identify the functionality requirements of the PPS Fire diesel pumps for continued use by
third party
Assumptions Third party will own operate and maintain PPS Fire Diesel pumps including power supplies and
EPA license requirements
Plant Description Consequential Plant Responsibility
PPS Fire Diesel pumps
Diesel pumps are a standalone system and can be plumbed to suit delivery where required
OMMThird Party
11 Appendix
111 Legal and other Requirements
1111 Legislation and Strategies
Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 37 -
Comply with all Legislation and Lease agreements during the Closureremediation process
Controls
Item Proposed Actions Responsibility
1 NorthernPlayford Generating Plant Lease PMAPS
2 NorthernPlayford Land Lease PMAPS
3 Environmental Compliance Agreement PMAPS
4 SA Generation Licence PMAPS
5 EPA Licences PMAPS
6 AEMO Certification PMAPS
7 Pressure Vessel Registrations PMAPS
8 Crane Registrations PMAPS
9 WHS Act amp Regulations PMAPS
10 Code of Practice ndash Demolition Work PMAPS
1112 Alinta Policies
Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 38 -
Controls
Item Description Proposed Actions Responsibility
1
Compliance Guideline HSSE-019 Demolition and Decommissioning Adhere to Alinta Policy PMAPS
112 References
Item Document Responsibility
1 Care to Closure Risk Assessment PMAPS
2 NPS Care to Closure Plan PMAPS
3 PPS Hibernation Manual PMAPS
4 PPS Closure Manual PMAPS
5 NPS Lube schedules PMAPS
6 Inspection and Audit sheet PMAPS
7 APS Sewerage and Septic systems (Sharepoint) PMAPS
8 APS Contaminated Drains system (Sharepoint) PMAPS
9 APS Transmission line layout (Sharepoint) PMAPS
Appendix B NPS Make Safe Manual Correcteddocx - 39 -
113 Project Plan
114 NPS Administration
1141 NPS Isolations
Asset Management Strategy
To wind back plant and system isolations to Perimeter isolationsdisconnections
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Item Proposed Actions Responsibility
Resource plan Track actions against plan OMM
1142 NPS Closure Audit
Asset Management Strategy
To provide an Auditable record of controls put in place to render the site as safe as reasonably practical for salvagedemolition
Controls
The following Controls have been identified to
Item Proposed Actions Responsibility
1 Raise work orders for each control action OMM
Appendix B NPS Make Safe Manual Correcteddocx - 40 -
2 Complete Inspection amp Audit sheets as each system is made safe OMM
115 NPS Residual Risks
Management Strategy
To highlight to the salvagedemolition third parties any Residual risks remaining that are beyond the Alinta Energy Closure workscope
Item Residual Risks Responsibility
Stack Aviation lighting requirements will need to be met until the stack is demolished PMAPS
Boiler structure Aviation lighting requirements will need to be met until the boiler is demolished PMAPS
Boiler burners Asbestos sheet gaskets exists between each burner and the boiler front (48 in total) PMAPS
66 Breakers Contain asbestos backing boards PMAPS
Air Heaters Bearing oil baths will contain oil PMAPS
Mill Spring pits The Gerb springs supporting the Mills contain a thick composite oil in the damper packs PMAPS
Underground Fuel tanks
There is an underground petrol tank at the SE corner of the NPS Store PMAPS
Transformers Some of the 415V transformers contain Freon gas PMAPS
Fire deluge system
There are some mercury switches used in the Fire deluge systems PMAPS
Appendix B NPS Make Safe Manual Correcteddocx - 41 -
Generator circuit breakers The generator CBrsquos contain SF6 gas PMAPS
Appendix B NPS Make Safe Manual Correcteddocx - 42 -
Appendix C
alintaSFE everyone every day every job Zero Harm
Augusta Power Station
Playford Facility
Closure Manual
Revision Date Description Prepared by Reviewed by Approved by
A 1915 First Draft
B 51016 Corrections
C
Distribution List
Augusta Management Team
Closure Manual ndash PPS
Index
1 Introduction 3
2 Closure Philosophy 3
3 Closure Strategy 3
4 Responsibilities 3
5 PPS Closure 4
51 Turbine Generator 4
511 Turbine 4
512 Condenser Sea Side 5
513 Condenser Condensate Side 5
514 Turbine Valves 6
515 Generator 6
516 Turbine Auxiliaries 7
52 Boiler 8
521 Boiler Systems 8
522 Feedwater Systems 9
523 Boiler Feed Pumps (BFP) 9
524 Draught Plant 10
53 Station Auxiliaries 11
531 Electrical 11
532 Coal Systems 17
533 Fuel Oil 19
534 Ash Systems 20
535 Compressed Air 22
536 CW Systems 22
537 Water Treatment Plant 24
538 Town Water and Drains 25
539 Fire Protection system 25
5310 Workshops and Offices 26
6 Appendix 27
61 Legal and other Requirements 28
611 Legislation and Licences 28
612 Alinta Policies 29
613 References 29
62 Project Plan 29
63 PPS Administration 29
631 PPS Registered Plant 29
632 PPS Isolations 30
633 Closure Audit 30
7 PPS Residual Risks 31
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 2 -
1 Introduction
The Playford Power Station began operation in the early 1960rsquos as a Base load Station through to the late 1980rsquos It then began operating as reserve generation for peak demand periods through to 2012 PPS was then placed into Hibernation on a 90 day recall With the continuing market supply from Wind and Solar generation it was announced in 2015 that Playford along with NPS is no longer required and will be Shutdown and Decommissioned and the site Remediated in line with the Generating Lease Agreement
2 Closure Philosophy
The Closure plan seeks to facilitate the removal of the Power Station infrastructure to manage all of the Asset removal with no impact on the surrounding environsrsquo meet all condition of the Lease Agreement and Legislative requirements
Alinta acknowledges that the demolition and site rehabilitation works are deemed to be lsquoHigh Riskrsquo work activities and will ensure appropriate management of this work in accordance with WHS Act 2012 and Regulations
Alinta will ensure the key principle of lsquoZero Harmrsquo will be embedded in all activities associated with the Closure Disposal and Remediation of the APS site in accordance with the Lease Agreement
3 Closure Strategy
The Closure Strategy will be to remove all foreseeable hazards remaining at PPS to make the plant Safe to the environment and SalvageDemolition personnel during the remediation programme by completing the activities outlined in this document
4 Responsibilities
The lsquoFacilities Managerrsquo will seek approval of Closure plans and allocate resources to implement the effective management and closure of the PPS site to meet the lease agreement Communicate the sequence and timing of activities in accordance with this plan to internal stakeholders and external parties as required
The lsquoFacilities Remediation Project Managerrsquo will consult and liaise with the Demolition and Remediation contractors on site and will be supported by a number of Technical Specialists and Contract Administrators
The `Facilities Safety and Environment Managerrsquo will develop the framework for `High Riskrsquo demolition works and ensure subcontractors comply with all legislative requirements associated with the remediation works
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 3 -
5 PPS Closure
51 Turbine Generator
511 Turbine
5111 Lube Oil Systems
Asset Management Strategy Minimise residual hazards remaining in the Lube oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
TG Lube Oil systems
Plant Description Proposed Actions Responsibility
Main Oil tank InspectRemove any residual oil from the main oil tanks
Lube oil pipework
InspectRemove any residual oil from the lube oil pipework system
Oil centrifuges Drain gearbox oil and empty oil from bowl
5112 Seal Oil Systems
Asset Management Strategy
Minimise residual hazards remaining in the Seal oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Seal Oil system
Plant Description Proposed Actions Responsibility
Seal Oil tank InspectRemove any residual oil from the Seal oil tanks
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 4 -
Seal oil pipework
InspectRemove any residual oil from the Seal oil
pipework system
Seal oil vac pprsquos Drain oil from pprsquos
512 Condenser Sea Side Asset Management Strategy
Minimise build up of toxic gases from decomposed marine growth in the Condenser
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Condenser water boxes Open doors and drains on condensers and air dry
Check for gases in water boxes prior to demolition
513 Condenser Condensate Side Asset Management Strategy
Minimise the risk of build up of gases in this space
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 5 -
Plant Description Proposed Actions Responsibility
EE Condensers Open up condensate drains
Stal condensers Open up drains
Condensate gases Check for gases in condensate space prior to demolition
514 Turbine Valves
Asset Management Strategy
Minimise residual hazards remaining in the Valve Control oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Turbine Stop valves Drain all control oil
Turbine Throttle valves Drain all control oil
515 Generator Asset Management Strategy
Prepare Generators for demolition
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 6 -
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Generator Remove all access doors and open to atmosphere
Check for gases in generator space prior to demolition
Exciter breaker Release kinetic energy in exciter breaker
516 Turbine Auxiliaries Asset Management Strategy
Eliminate the possibility of gases andor pressure build up in the system during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
EE DC Htr and DC htr ext pps Open all drains and vents
Drain oil from pp bearings
Shunt DA pprsquos Drain oil from bearings
EE LP1 htr Open all drains and vents
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 7 -
Stal Gland leakage condensers DC Htr and DC htr ext pps Open all drains and vents
Stal Gland steam cooler Open all drains and vents
Stal Ejector condensers Open all drains and vents
Stal Gland leakage condensers and clean drains tank Open all drains and vents
Stal Auxillary steam vessels Open all drains and vents
All Vessels Check for gases in all Auxiliary vessel spaces prior to demolition
52 Boiler
521 Boiler Systems
5211 Pressure Parts
Asset Management Strategy
Minimise possibility of gases andor pressure build up in the system during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Boiler Tubes and Drums
Open top and bottom drum doors and open all vents and drains
Check for gases in all spaces prior to demolition
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 8 -
Sootblowers Drain sootblower gearbox oil
522 Feedwater Systems
5221 HP Heaters
Asset Management Strategy
Minimise possibility of gases andor pressure build up in the system during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
HP heaters Remove loop pipes from heaters
Open body drains and vents
Check for gases in hp heater space prior to demolition
Boiler dosing pprsquos Drain oil from pprsquos
523 Boiler Feed Pumps (BFP)
Asset Management Strategy
Minimise any residual hazards remaining in the Boiler Feed pumps
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 9 -
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Boiler feed pumps - Mather amp Platt Drain bearing oil reservoirs
Boiler feed pumps - Sulzer Drain bearing oil reservoirs
Feed pump headers ndash suction and discharge Open all drains and vents and sectionalising valves
Check for gases in all feed water header spaces prior to demolition
Steam driven feed pp Drain oil from bearings
524 Draught Plant
Asset Management Strategy
Minimise any residual hazards remaining in the Draught Plant
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
FD Fans Drain oil from FD fan bearings on Blr 12 amp 3 Note 45 amp 6 have greased bearings
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 10 -
53 Station Auxiliaries
531 Electrical
5311 DC Systems
Asset Management Strategy
Minimise the risk of DC ndash LeadAcid hazards to demolition crew
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
DC batteries A Station 110 volt Remove all LeadAcid batteries
DC batteries B Station 110 volt Remove all LeadAcid batteries
DC batteries B Station UPS Remove all LeadAcid batteries
Diesel generator 24 volt batteries two banks Remove all LeadAcid batteries
Diesel 24 volt Emergency Start Relay batteries Remove all LeadAcid batteries
Diesel Fire Pump Batteries Remove all LeadAcid batteries
DC batteries Station Fire System Remove all LeadAcid batteries
Terminal Room Remove all LeadAcid batteries
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 11 -
Decommission and remove all 132kV line protection devices Electranet
Diesel generator Drain oil and coolant
5312 Switchboards ndash 33kV amp 415V
Asset Management Strategy
To remove any kinetic energy stored in the 33kV switchgear and to supply an alternative power supply for limited emergency lighting and dewatering
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
33kV Breakers Discharge all spring loaded devices This will be done by operators when isolating the station PMA
5313 Power Transformers
Asset Management Strategy
Apply a perimeter isolation to the 275132kV AampB station switchyards to Eliminate risk of Electric Shock by disconnecting all HV supplies at major terminal points in A amp B station switchyards Eliminate the possibility of a transformer oil spill to the surrounding environment
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 12 -
275 kV step up tfrsquos Disconnect step up transformer B1 at 275kV droppers Comp
Disconnect step up transformer B2 at 275kV droppers Comp
Disconnect step up transformer B3 at 275kV droppers Comp
Disconnect step up transformer at B4 275kV droppers Comp
275kV Nth tie transformer disconnect from 275kV droppers
132kV System Disconnect points at isolators of AS2 AS4 amp disconnect cables at 11kV tertiary terminals at Nth tie transformer De-energised
33 kV to 415 volt transformers Drain all transformers and dispose of transformer oil
275 kV step up tfrsquos Drain all transformers and dispose of transformer oil
13211kV transformers
Drain transformers in A Stn switchyard (2 x 13211kV and old spare near canteen)
5314 DCSControl SystemsAlarms
Asset Management Strategy
Minimise the risk of residual power sources
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Processors Low voltage batteries to be removed
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 13 -
DC inverter batteries Remove batteries
5315 Actuators
Asset Management Strategy
Minimise risk of oil spill to environment during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Drain actuators of oil
5316 BH1 amp Compressor Equipment
Asset Management Strategy
Minimise any pressure hazards in the compressor system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
BH1 Compressor Shutdown compressor and drain Air recievers
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 14 -
Breaker Unplug from breaker housing
5317 11Kv Ring Main Equipment
Asset Management Strategy
Remove environmental contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Stator 11kV switchgear Drain oil
11kV transformers Drain oil
5318 Lifts amp Cranes
Asset Management Strategy
Decommission and de-register lifts and cranes in preparation for demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
B stn Nth and Sth lifts Deregistration
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 15 -
Degas air conditioners
Drain gearbox oil
Drain gearbox oil
PPS Cranes Drain oil from gearboxes
De-register cranes
5319 Public Address System
Asset Management Strategy
Isolate from NPS system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
PA system Disconnect PA system
53110 BE09BE10 33kV Switchgear
Asset Management Strategy
Remove environmental contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 16 -
Plant Description Proposed Actions Responsibility
Stator 33kV switchgear Drain oil
33kV transformers Drain oil
53111 132Kv System
Asset Management Strategy
To remove the DC power supplies to the 132kV protection equipment located in the A stn terminal room
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
132kV protection equipment Relocated by Electranet to a suitable location Electranet
132kV System Disconnect points at isolators of AS2 AS4 amp disconnect cables at 11kV tertiary terminals at Nth tie transformer
532 Coal Systems
5321 Coal Feeders
Asset Management Strategy
To minimise environmental hazards
Controls
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 17 -
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Feeder gearbox Drain gearbox oil
5322 Coal Conveyors
Asset Management Strategy
Remove environmental contaminants and kinetic energy from the coal system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Conveyors Drain gearbox oils (Note detailed risk assessment for access required due to condition of towers)
Wash down all conveyors
Release take up assemblies
Trippers Drain gearbox oils (Note detailed risk assessment for Bin access required due to condition of towers)
Ploughs Drain gearbox oils
Towers Wash down all towers
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 18 -
5323 Bins amp Bunkers
Asset Management Strategy
Minimise environmental hazards Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Bins Wash out bins
533 Fuel Oil
Asset Management Strategy
Remove environmental contaminants from Fuel oil system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Oil guns Remove and drain oil guns
FO Pipework Drain FO pipework ndash pump degreaser through system
FO transfer pprsquos Drain strainers
FO storage See NPS Closure Manual
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 19 -
534 Ash Systems
5341 Ash pumps amp pit
Asset Management Strategy
Maintain dewatering in B stn basement during salvagedemolition activities via an alternative power supply
Controls The following Controls have been identified to maintain site de-watering during SalvageDemolition operation
Plant Description Proposed Actions Responsibility
Alternative power supply
Install temporary generator for ash pumpde-watering pumps and emergency lighting
Ash pump Alternative power supply andor pump required after site power system shut down
5342 HP amp LP Sluice pumps
Asset Management Strategy
Remove environmental contaminants from sluice pumps
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
HP sluice pumps Drain oil from bearing reservoirs
LP sluice pumps Drain oil from bearing reservoirs
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 20 -
5343 Ash Hoppers
Asset Management Strategy
Remove environmental contaminants from hoppers
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Screw conveyors Drain gearbox oils
5344 Deashers
Asset Management Strategy
Remove environmental contaminants from Deashers
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Deashers Drain gearbox oils
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 21 -
535 Compressed Air
Asset Management Strategy
Shut down assets and depressurise the system and remove environmental contanimants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
No 1 amp 2 Compressors Drain oil from air ends and separators
Sth and SW compressors Drain oil from air ends and separators
Air receivers De-pressurise and Open drainvent valves on GS air receivers
De-pressurise and Open drainvent valves on Blr FF air receivers and pulse tanks
De-pressurise and Open drainvent valves on TG air receivers
536 CW Systems
5361 CW Pumps
Asset Management Strategy
Remove environmental contaminants from CW pumps
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 22 -
Plant Description Proposed Actions Responsibility
CW pumps Drain oil from bearings
5362 CW Chambers
Asset Management Strategy
Isolate the gulf waters from the basement
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Chamber
Controls to manage isolation between gulf and basement to be developed Currently spades inserted on CW pump outlets
5363 CW Screens
Asset Management Strategy
Remove environmental contaminants from CW screens
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
CW Screens Drain gearbox and fluid drive oils
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 23 -
537 Water Treatment Plant
Asset Management Strategy
Remove any remaining residual contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Anion tanks Remove and dispose of resin
Mixed bed vessels Remove and dispose of resin
Cation tanks Remove and dispose of resin
Sand filters Remove and dispose of sand
Carbon filters Remove and dispose of Anthracite
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 24 -
538 Town Water and Drains Asset Management Strategy To maintain basement de-watering during salvagedemolition operation
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Sump pumps Install temporary generator for sump pumps
De-watering pump Install temporary generator for de-watering pump
Contaminated drain tank
Pump out Contaminated drain tank after all oils drained from station
Black water system
Disconnect connection from NPS feedline from A stn sewerage tank and Workshopstores sewerage tank Pump out existing tanks in preparation for demolition
Town Water storage tanks Drain water tank
TW supply Isolate TW supply from NPS and SA Water
Hot Water services Drain Workshop and office HWSrsquos
539 Fire Protection system
Asset Management Strategy
Decommission fire protection system and remove environmental contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 25 -
Plant Description Proposed Actions Responsibility
Fire system Advise FM Global of change in status from insured to uninsured facility
Diesel Fire Pumps See NPS Closure Manual `Infrastructure of Interestrsquo
Water storage tank Drain water tank
FM500 system Decommission and remove cylinder
Accumulator Decommission Accumulator at Fire Diesels
33kV room compressor Drain oil from compressor
Fire extinguishers Remove all fire extinguishers
5310 Workshops and Offices
Asset Management Strategy
Minimise any hazards that may impact on demolition crews
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Item Proposed Actions Responsibility
PPS Fitting Shop
Decommission all Electrical supplies air-conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including asbestos removalmanagement sewage system decommissioning and site rehabilitation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 26 -
PPS Boiler Shop and Spares Store
Decommission all Electrical supplies air-conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including asbestos removalmanagement sewage system decommissioning and site rehabilitation
PPS Electrical Shop
Decommission all Electrical supplies air-conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including asbestos removalmanagement sewage system decommissioning and site rehabilitation
Kaefers Workshop
Decommission all Electrical supplies air conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including sewage system decommissioning and site rehabilitation
Grit Blasters Facility
Decommission all Electrical supplies town water systems to facility
Inventory and remove all plant tools and equipment for disposal
Offices Decommission Air Conditioners
Salvage and dispose of furniture and fittings
Remove paperwork required to be kept to comply with Statutory obligations
Equipment rooms Decommission Air conditioners
6 Appendix
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 27 -
61 Legal and other Requirements
611 Legislation and Licences
Management Strategy
Comply with all Legislation and Lease agreements during the Closureremediation process
Item Document Responsibility
1 NorthernPlayford Generating Plant Lease
2 NorthernPlayford Land Lease
3 Environmental Compliance Agreement
4 SA Generation Licence
5 EPA Licences
6 AEMO Certification
7 Pressure Vessel Registrations
8 Lifts Registrations
9 WHS Act amp Regulations
10 Code of Practice ndash Demolition Work
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 28 -
612 Alinta Policies
Item Policy Responsibility
1 Compliance Guideline HSSE-019 Demolition and Decommissioning
613 References
Item Documents Responsibility
1 Care to Closure Risk Assessment
2 NPS Care to Closure Plan
3 PPS Hibernation Manual
4 Inspection amp Audit Sheet
62 Project Plan
63 PPS Administration
631 PPS Registered Plant
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 29 -
Management Strategy
To De-commission and de-register registered Plant
Controls
Item Proposed Actions Responsibility
1 Advise Safework SA in writing of pressure vessels that have been decommissioned
2 Advise Safework SA in writing of Lifts that have been decommissioned
632 PPS Isolations
Management Strategy
To wind back plant and system isolations to Perimeter disconnections
Controls
Item Proposed Actions Responsibility
Existing isolations Clear isolations and remove isolation tags from plant
633 Closure Audit
Management Strategy
To provide an Auditable record of controls put in place to render the site as safe as reasonably practical for salvagedemolition
Controls
Item Proposed Actions Responsibility
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 30 -
7
1 Raise work orders for each control action
2 Complete Inspection amp Audit sheets as each system is made safe
PPS Residual Risks
Management Strategy
To highlight to the salvagedemolition third parties any Residual risks remaining that are beyond the Alinta Energy Closure workscope
Item Residual Risks Responsibility
Boiler insulation Contains Asbestos
WorkshopAdmin building materials Contains asbestos
Basement flooding Seawater seepage into basement
Tunnels Cable tunnels exist between Turbine halls and switchyards
Bag Filters
Bags may still be impregnated with ash potential dust problem on demolition Residual Ash may be present in hoppers
PPS Seawall
Vehicle access to sea side of B Station has been closed due to condemned seawall pillings Will present problems to make safe works in this area
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 31 -
Appendix D
everyone every day every jab Zero Harm
0
i t------------t i t--------t
i
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
5 51
52
53
54
55
System
TurbineBoiler Unit Turbine
Turbine oil systems
Condenser condensate side
Condenser seawater side
Turbine valves
Generator Barring gear
Hydrogen system
CW system CW Pumps
CW Ducts
Feedwater system LP Feedwater
Condensate Polishing Plant
Blr Feed Pumps
HP heaters
Feed make up system
Boiler
Task Name
Ensure all SWMS amp Risk assessments are reviewed and All Personnel signed onto Isolation permits prior to commencing work
NPS Care Closure NPS Unit 1 Care - Project No
TurbineBoiler Unit Turbine
Turbine off
Turbine oil systems
Lube oil system to remain operational
Seal oil system to remain operational
Condenser condensate side
Isolation
Open doors
Condenser seawater side
Drain seawater side of condenser
Turbine valves Isolation
Unit Care - Turbine complete
Generator Barring gear
Run on Barring gear to prevent rotors sagging
Hydrogen system Decommision hydrogen system and purge generator
Unit Care - Generator complete
CW system CW Pumps
Isolation
CW Ducts Ducts to be maintained empty and dry per culvert dewatering system
Unit Care - CW System complete
Feedwater system LP Feedwater
Isolation - CEPs
LP htrs GS Condenser and LP Ejector Drain and store dry
Deaerator and DAFT Drain and store dry
Condensate Polishing Plant
Open vessels
Gas Clearance
Remove resins
Blr Feed Pumps Isolate and drain Feed pumps
HP heaters Isolation
Drain and store dry
Feed make up system
Isolation
Drain Make up tanks
Unit Care - Feedwater System complete
Boiler Boiler off
Duration
0 hrs
24038 hrs
1705 hrs
1705 hrs 725 hrs 1 hr
0 hrs
0 hrs
0 hrs
55 hrs
8 hrs
1 hr
275 hrs
4 hrs
0 hrs 3 hrs
0 hrs
3752 hrs 3752 hrs 120 hrs
1 hr 8 hrs
0 hrs
0 hrs 0 hrs 1 hr
0 hrs 8 hrs
0 hrs
33 hrs 5 hrs 1 hr
8 hrs
8 hrs
27 hrs
2 hrs
1 hr
24 hrs
625 hrs 8 hrs
7 hrs 6 hrs
8 hrs
6 hrs
2 hrs
8 hrs
0 hrs
5332 hrs 2 hrs
Page 1 of 12
39
40
41
42
43
44
45
46
47
48
49
50
a1middotn a s~FE everyone every day every jab Zero Harm
0 I I I
~ ~ i i i
~ ~ i i i
bfl - r r r - l l l
~ ~ i
i i ~ i
~ i
i
~ i i i
-
I I I
i L L L i i
I I I
- -- L L L i -
i -
i -
-
-
i -
i -
i -
i I I I
- L ~
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
56
59
System
Pressure parts Storage
Furnace and Gas path
Draught Plant Air heaters
ID Fans
GR Fan
PA fan
SA fan
Ducts and dampers
ACW System Seawater side
Task Name
Pressure parts Storage
Control cool and drain boiler (in accordance with drainage schedule) Item 8
Isolation
Open boiler doors
Boiler gas clearances
Initiate sprays (pre wash) in Eco 1 amp 2
Furnace and Gas path
Sootblow 8 hrs prior to shutdown
Keep deasher in service for duration of wash
Remove Economiser e-valves
Gas Clearances
Furnace and economiser wash
External Wash down structure
Unit Care - Boiler complete
Draught Plant Air heaters
Shut down once core temp lt 100 degrees
Isolation
Remove dump vvs amp e-vvs
Deluge wash
Open doors
Gas Clearance
Manual internal wash
ID Fans Shut down amp Isolate once unit gas path is dry after precip wash - 48
Open doors
Gas Clearance
Washvocuum windboxes
GR Fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
PA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
SA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
Ducts and dampers
Isolation
Open doors
Gas clearances
WashVacuum GR outlet and precipitator outlet duct
Inspect all ducts and vacuum as required
Unit Care - Draught Plant complete
ACW System Seawater side
Duration
1932 hrs
8 hrs
4 hrs
682 hrs
2 hrs
6 hrs
5332 hrs
6 hrs
0 hrs
4 hrs
1 hr
24 hrs
275 hrs 8 hrs
0 hrs
1695 hrs 4798 hrs 2 hrs
2 hrs
4 hrs
2 hrs
4 hrs
1 hr
16 hrs
165 hrs 4 hrs
4 hrs
1 hr
8 hrs
105 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
1695 hrs
2 hrs
4 hrs
2 hrs
80 hrs
80 hrs
0 hrs
0 hrs 0 hrs 2 hrs Isolate amp drain and dry store (Unit)
Page 2 of 12
93
94
95
96
97
98
99
100
101
102
103
104
everyone every day every jab Zero Harm
0
~ ~ i ~ ~ i i ~ ~ i i ~ i 6tJ i i i ~ i ~ i i i ~ ~ i i i ~ ~ i i
i I-----
i 1------1
I----- i
i 1------1 i
~ i I-----
i I-----
i 1------lii i
i
- l
L
- L
l l
L L
L L
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual System Task Name Index No
Unit Care - ACW System complete
510 Coal System Coal System Bins amp Bunkers Bunkers
Run down bunker levels
Isolate Mill Feeders
Fit bunker emptying chute to EN Feeder chute
Empty EN bunker
Wash EN Bunker
Remove bunker emptying chute from EN
Fit bunker emptying chute to WN Feeder chute
Empty WN bunker
Wash WN Bunker
Remove bunker emptying chute from WN
Fit bunker emptying chute to EC Feeder chute
Empty EC bunker
Wash EC Bunker
Remove bunker emptying chute from EC
Fit bunker emptying chute to WC Feeder chute
Empty WC bunker
Wash WC Bunker
Remove bunker emptying chute from WC
Fit bunker emptying chute to ES Feeder chute
Empty ES bunker
Wash ES Bunker
Remove bunker emptying chute from ES
Fit bunker emptying chute to WS Feeder chute
Empty WS bunker
Wash WS Bunker
Remove bunker emptying chute from WS
Coal feeders Coal feeders Open EN Feeder
Gas clearance
Vac and wash out
Open WN Feeder vac and wash out
Gas clearance
Vac and wash out
Open EC Feeder vac and wash out
Gas clearance
Vac and wash out
Open WC Feeder vac and wash out
Gas clearance
Vac and wash out
Open ES Feeder
Gas clearance
Vac and wash out
Open WS Feeder
Gas clearance
Vac and wash out
Mills Mills Open EN Mill
Gas clearance
Wash out EN Mill - leave open to dry out
Open WN Mill
Gas clearance
Wash out WN Mill - leave open to dry out
Open EC Mill
Duration
0 hrs
7347 hrs 5487 hrs 4 hrs
8 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
4827 hrs 1 hr
1 hr
465 hrs
4 hrs
1 hr
4 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
74 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
832 hrs
5655 hrs 1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
Page 3 of 12
148
149
150
151
152
153
154
155
156
157
158
159
160
everyone every day every jab Zero Harm
0 i
1-------1~
1-------1 i
~ i 1-------1
i 1-------1
~ i 1-------1 i
1-------1~
i 1-------1
l-------16tl
1-------1~
i 1-------1
i 1-------1
1-------1~
i 1-------1
1-------1~
i 1-------1
i 1-------1 i 1-------1~
1-------1~
1-------1 ~ i
1-------1~
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
511
512
6 62
5 51
System
Fuel Oil FO pumps
Storage tanks
Ash system Hoppers
Precips
Deasher
Ash pitpumps
Electrical Systems Instrumentation
TurbineBoiler Unit Turbine
Turbine oil systems
Task Name
Gas clearance
Wash out EC Mill - leave open to dry out
Open WC Mill
Gas clearance
Wash out WC Mill - leave open to dry out
Open ES Mill
Gas clearance
Wash out ES Mill - leave open to dry out
Open WS Mill
Gas clearance
Wash out WS Mill - leave open to dry out
Release roller spring tension
Unit Care - Coal System complete
Fuel Oil FO pumps
Shut oil pumps down when unit OOS
Isolate fuel oil system
Clean filters and system
Drain FO system
Storage tanks Run down storage level (burn sell if possible)
Isolate
Unit Care - Fuel Oil complete
Ash system Hoppers
Run local manual dump
Open hopper doors
Precips Isolate
Remove Precip e-valves
Gas clearance
Full wash of internals - washing manifold
Store with air doors open for natural air circulation
Deasher Isolation
Gas clearance
Full wash of all internals store dry
Ash pitpumps Flush and pump down pit - leave available
Unit Care - Ash System complete
Electrical Systems Instrumentation
Build scaffold for furnace camera removal
Remove furnace camera
Dismantle scaffold after furnace camera removal
Unit Care - Electrical Systems complete
Unit 1 Care Complete
NPS Unit 2 Care - Project No TurbineBoiler Unit
Turbine Turbine off
Turbine oil systems
Lube oil system to remain operational
Seal oil system to remain operational
Duration
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
6 hrs
0 hrs
345 hrs 335 hrs 1 hr
1 hr
8 hrs
24 hrs
0 hrs 0 hrs
1 hr
0 hrs
629 hrs 629 hrs 8 hrs
3 hrs
525 hrs 4 hrs
24 hrs
1 hr
24 hrs
0 hrs
417 hrs 2 hrs
1 hr
2 hrs
0 hrs 0 hrs
0 hrs
14 hrs 14 hrs 4 hrs
8 hrs
2 hrs
0 hrs
0 hrs
18598 hrs
18598 hrs 2238 hrs 1 hr
0 hrs
0 hrs
0 hrs
Page 4 of 12
204
205
206
207
208
209
210
211
212
213
214
a1middotn a s~FE everyone every day every jab Zero Harm
0 I I I
~ i
~
~ - r r r - l l l
~
~ I I I
- l L l ~
~ I I I
- L L L ~ ~ ~
i i i
~
lii Iii
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I I I
-
Iii L L L -
lil ~ i i i
lil 6tl i i i
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
52
53
54
55
System
Condenser condensate side
Condenser seawater side
Turbine valves
Generator Barring gear
Hydrogen system
CW system CW Pumps
CW Ducts
Feedwater system LP Feedwater
Condensate Polishing Plant
Blr Feed Pumps
HP heaters
Feed make up system
Boiler
Pressure parts Storage
Furnace and Gas path
Task Name
Condenser condensate side
Isolation
Open doors
Condenser seawater side
Drain seawater side of condenser
Turbine valves Isolation
Unit Care - Turbine complete
Generator Barring gear
Run on Barring gear to prevent rotors sagging
Hydrogen system Decommision hydrogen system and purge generator
Unit Care - Generator complete
CW system CW Pumps
Isolation
CW Ducts Ducts to be maintained empty and dry per culvert dewatering system
Unit Care - CW System complete
Feedwater system LP Feedwater
Isolation - CEPs
LP htrs GS Condenser and LP Ejector Drain and store dry
Deaerator and DAFT Drain and store dry
Condensate Polishing Plant
Open vessels
Gas Clearance
Remove resins
Blr Feed Pumps Isolate and drain Feed pumps
HP heaters Isolation
Drain and store dry
Feed make up system
Isolation
Drain Make up tanks
Unit Care - Feedwater System complete
Boiler Boiler off
Pressure parts Storage
Control cool and drain boiler (in accordance with drainage schedule) Item 8
Isolation
Open boiler doors
Boiler gas clearances
Initiate sprays (pre wash) in Eco 1 amp 2
Furnace and Gas path
Sootblow 8 hrs prior to shutdown
Keep deasher in service for duration of wash
Remove Economiser e-valves
Gas Clearances
Furnace and economiser wash
Duration
617 hrs
8 hrs
1 hr
24 hrs
4 hrs
0 hrs 3 hrs
0 hrs
227 hrs 227 hrs 120 hrs
2 hrs 8 hrs
0 hrs
0 hrs 0 hrs 1 hr
0 hrs 8 hrs
0 hrs
33 hrs 617 hrs 1 hr
8 hrs
8 hrs
27 hrs
2 hrs
1 hr
24 hrs
557 hrs 8 hrs
757 hrs 6 hrs
8 hrs
717 hrs
2 hrs
8 hrs
0 hrs
543 hrs 2 hrs
203 hrs
8 hrs
4 hrs
713 hrs
2 hrs
6 hrs
543 hrs
6 hrs
0 hrs
4 hrs
1 hr
24 hrs
Page 5 of 12
255
256
257
258
259
260
261
262
263
264
265
266
a1middotn a s~FE everyone every day every jab Zero Harm
0
~ i - r r r - L L L
~ ~ i
i i ~
6 i
i
~ i i i
i i i
i i i
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i i
~ -
- L L L ~ ~ i ~ i ~ i i i ~ i Iii i i
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
56
59
Isolate amp drain and dry store (Unit)
510
System
Draught Plant Air heaters
ID Fans
GR Fan
PA fan
SA fan
Ducts and dampers
ACW System Seawater side
Coal System Bins amp Bunkers
Task Name
External Wash down structure
Unit Care - Boiler complete
Draught Plant Air heaters
Shut down once core temp lt 100 degrees
Isolation
Remove dump vvs amp e-vvs
Deluge wash
Open doors
Gas Clearance
Manual internal wash
ID Fans Shut down amp Isolate once unit gas path is dry after precip wash - 48
Open doors
Gas Clearance
Washvocuum windboxes
GR Fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
PA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
SA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
Ducts and dampers
Isolation
Open doors
Gas clearances
WashVacuum GR outlet and precipitator outlet duct
Inspect all ducts and vacuum as required
Unit Care - Draught Plant complete
ACW System Seawater side
Unit Care - ACW System complete
Coal System Bunkers
Run down bunker levels
Isolate Mill Feeders
Fit bunker emptying chute to EN Feeder chute
Empty EN bunker
Wash EN Bunker
Remove bunker emptying chute from EN
Fit bunker emptying chute to WN Feeder chute
Empty WN bunker
Wash WN Bunker
Remove bunker emptying chute from WN
Duration
24 hrs 8 hrs
0 hrs
16917 hrs 4748 hrs 2 hrs
2 hrs
4 hrs
2 hrs
4 hrs
1 hr
16 hrs
13 hrs 4 hrs
4 hrs
1 hr
8 hrs
1067 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
16917 hrs
2 hrs
4 hrs
2 hrs
80 hrs
80 hrs
0 hrs
0 hrs 0 hrs 2 hrs
0 hrs
7347 hrs 5865 hrs 4 hrs
8 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
Page 6 of 12
309
310
311
312
313
314
315
316
317
318
319
320
321
a1middotn a s~FE everyone every day every jab Zero Harm
0 I I I i ~ ~ i i ~ ~ i i i ~ i ~ i i i 6 i ~ i
i i
i i
i
i - -- r r r i ~ L L L i i ~ I I I
i - - L L L
~ i i
~ i i
~ i
~ i
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual System Task Name Index No
Fit bunker emptying chute to EC Feeder chute
Empty EC bunker
Wash EC Bunker
Remove bunker emptying chute from EC
Fit bunker emptying chute to WC Feeder chute
Empty WC bunker
Wash WC Bunker
Remove bunker emptying chute from WC
Fit bunker emptying chute to ES Feeder chute
Empty ES bunker
Wash ES Bunker
Remove bunker emptying chute from ES
Fit bunker emptying chute to WS Feeder chute
Empty WS bunker
Wash WS Bunker
Remove bunker emptying chute from WS
Coal feeders Coal feeders Open EN Feeder
Gas clearance
Vac and wash out
Open WN Feeder vac and wash out
Gas clearance
Vac and wash out
Open EC Feeder vac and wash out
Gas clearance
Vac and wash out
Open WC Feeder vac and wash out
Gas clearance
Vac and wash out
Open ES Feeder
Gas clearance
Vac and wash out
Open WS Feeder
Gas clearance
Vac and wash out
Mills Mills Open EN Mill
Gas clearance
Wash out EN Mill - leave open to dry out
Open WN Mill
Gas clearance
Wash out WN Mill - leave open to dry out
Open EC Mill
Gas clearance
Wash out EC Mill - leave open to dry out
Open WC Mill
Gas clearance
Wash out WC Mill - leave open to dry out
Open ES Mill
ltNew Taskgt
Wash out ES Mill - leave open to dry out
Open WS Mill
Gas clearance
Wash out WS Mill - leave open to dry out
Release roller spring tension
Unit Care - Coal System complete
Duration
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
509 hrs 1 hr
1 hr
465 hrs
4 hrs
1 hr
4 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
75 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
832 hrs
554 hrs 1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
8 hrs
8 hrs
1 hr
1 hr
8 hrs
6 hrs
0 hrs
Page 7 of 12
365
366
367
368
369
370
371
372
373
374
375
376
377
everyone every day every jab Zero Harm
0
~ gt------------lt~
i I-----
i t-------t
I-----~
I-----~
I-----~
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6tJ I----- i
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NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
System Task Name Duration
378 511 Fuel Oil Fuel Oil 5048 hrs 379 FO pumps FO pumps 3367 hrs 380 Shut oil pumps down when unit OOS 1 hr
381 Isolate fuel oil system 1 hr
382 Clean filters and system 8 hrs
383 Drain FO system 24 hrs
384 Storage tanks Storage tanks 0 hrs 385 Run down storage level (burn sell if possible) 0 hrs
386 Isolate 1 hr
387 Unit Care - Fuel Oil complete 0 hrs
388 512 Ash system Ash system 7803 hrs 389 Hoppers Hoppers 6322 hrs 390 Run local manual dump 8 hrs
391 Open hopper doors 3 hrs
392 Precips Precips 5217 hrs 393 Isolate 4 hrs
394 Remove Precip e-valves 24 hrs
395 Gas clearance 1 hr
396 Full wash of internals - washing manifold 24 hrs
397 Store with air doors open for natural air circulation 0 hrs
398 Deasher Deasher 417 hrs 399 Isolation 2 hrs
400 Gas clearance 1 hr
401 Full wash of all internals store dry 2 hrs
402 Ash pitpumps Ash pitpumps 0 hrs 403 Flush and pump down pit - leave available 0 hrs
404 Unit Care - Ash System complete 0 hrs
405 6 Electrical Systems Electrical Systems 14 hrs 406 62 Instrumentation Instrumentation 14 hrs 407 Build scaffold for furnace camera removal 4 hrs
408 Remove furnace camera 8 hrs
409 Dismantle scaffold after furnace camera removal 2 hrs
410 Unit Care - Electrical Systems complete 0 hrs
411 Unit 1 Care Complete 0 hrs
412 NPS Station Care - Project No 101 hrs
413 5 TurbineBoiler Unit TurbineBoiler Unit 101 hrs 414 510 Coal System Coal System 101 hrs 415 Train unloading Train unloading 3 hrs 416 Isolate unloader 1 hr
417 Washvaccuum train unloader 2 hrs
418 Bins Bins 64 hrs 419 Wash out coal bins 64 hrs
420 Conveyors Conveyors 100 hrs 421 Isolate conveyors 4 hrs
422 Wash down conveyors 32 hrs
423 Coal Towers Coal Towers 32 hrs 424 Wash down coal towers 32 hrs
425 Station Care - Coal System complete 0 hrs
426 511 Fuel Oil Fuel Oil 585 hrs 427 FO pumps FO pumps 585 hrs 428 Isolate fuel oil unloading delivery pumps 2 hrs
429 Drain fuel oil pipework 24 hrs
430 FO Storage tanks FO Storage tanks 32 hrs 431 Drain fuel oil storage tanks and vaccuum out any residue 32 hrs
432 FO Storage - PPS FO Storage - PPS 10 hrs 433 Run stocks to minimum levels 0 hrs
Page 8 of 12
everyone every day every jab Zero Harm
0
t------t i
t------t i
f--------l i
i t------t
i t------t
i f--------l i
f--------l i
i f--------l i
i f--------l
i t------t
i f--------l i
t------t i
t------t i
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
7 71
5 51
53
54
System
FO Storage - service tank
Stn Aux Aux Blr
TurbineBoiler Unit Turbine Turbine Oil Systems
CEPs
Turbine valves
CW system Chambers
CW Pumps
CW Dosing
Feedwater system
Task Name
Clean out remaining oil
FO Storage - service tank
Run stocks to minimum levels
Clean out remaining oil
Station Care - Fuel Oil complete
Stn Aux Aux Blr
Isolation
Drain and dry store Aux Blr
DACP Disconnect discharge pipework
Remove collection vessel filter bags
Wash collection vessels
NPS Station Care Complete
NPS Closure - Project No TurbineBoiler Unit
Turbine Turbine Oil Systems
Isolation
Drain main oil tank and pipework
Drain seal oil defoaming tank and pipework
Drain seal oil drain regulator tanks
Drain Loop seal tanks
Isolate electrical supplies to pumps
CEPs Drain oil from CEP and motor
Turbine valves Isolate power supplies
Drain actuators and pipework
Drain control stations and acumulators
NPS Closure - Turbine complete
CW system Chambers
Stop log sealing faces to be cleaned divers required
Install stop logs
CW chamber drained
dewatering pump installed
Remove CW pump
Fit blanks
Remove Dewatering pp
Remove stop logs
CW Pumps Drain oil from pump bearings
Ferrous Chloride dosing
Drain and flush tank amp pipe work to condenser
Isolation
Chlorination Plant Flush acid pipe work with sea water
Isolation
Drain acid tank
Wash out acid tank
NPS Closure - CW System complete
Feedwater system
Duration
8 hrs
10 hrs
0 hrs
8 hrs
0 hrs
715 hrs 10 hrs 2 hrs
8 hrs
18 hrs 2 hrs
8 hrs
8 hrs
0 hrs
24038 hrs
24038 hrs 168 hrs 168 hrs
4 hrs
64 hrs
32 hrs
32 hrs
32 hrs
4 hrs
32 hrs 32 hrs
98 hrs 2 hrs
48 hrs
48 hrs
0 hrs
24038 hrs 218 hrs 32 hrs
32 hrs
16 hrs
2 hrs
80 hrs
32 hrs
8 hrs
16 hrs
8 hrs 8 hrs
17 hrs
16 hrs
1 hr
5 hrs 1 hr
2 hrs
1 hr
1 hr
0 hrs
35 hrs
Page 9 of 12
475
476
477
478
479
480
481
482
483
484
485
486
everyone every day every jab Zero Harm
0
t------t i
t------t i
t------t i
t-------t i
t------t i
t------t i
t-------t i
t------t i
t-------t i
t------t i
t-------t i
t-------t i
t------t i
i
t------t i
t------t i
i t-------t i
t------t i
t------t i
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
System Task Name Duration
487 Res Feed Water Tanks Res Feed Water Tanks 2 hrs
488 Drain RFW tanks 2 hrs
489 LP Feedheaters LP Feedheaters 8 hrs 490 Open drains and doors 8 hrs
491 GS condenser GS condenser 8 hrs 492 Open drains and doors 8 hrs
493 LP ejector LP ejector 8 hrs 494 Open drains and doors 8 hrs
495 Boiler feed Pumps Boiler feed Pumps 32 hrs 496 Remove oil from BFP and GTD 32 hrs
497 HP 6 amp 7 HP 6 amp 7 4 hrs 498 Open drains 4 hrs
499 Ammonia dosing pp Ammonia dosing pp 4 hrs
500 Drain oil from bearings 4 hrs
501 55 Boiler Boiler 8 hrs 502 Pressure parts Pressure parts 8 hrs 503 Open all drains and vents 8 hrs
504 Safety valves Safety valves 8 hrs 505 Relieve safety valve spring tensions 8 hrs
506 Blowdown vessels Blowdown vessels 8 hrs 507 Open all drains and vents 8 hrs
508 56 Draught Plant Draught Plant 16 hrs 509 Air Heaters Air Heaters 16 hrs 510 Drain oil from bearings and gearboxes 16 hrs
511 ID fans ID fans 16 hrs 512 Drain oil from bearings and oil tanks 16 hrs
513 GR Fan GR Fan 8 hrs 514 Drain oil from bearings and oil tanks 8 hrs
515 PA fan PA fan 8 hrs 516 Drain oil from bearings and oil tanks 8 hrs
517 SA SA 8 hrs 518 Drain oil from bearings and oil tanks 8 hrs
519 57 Valves Valves 40 hrs 520 Station safety vvs Station safety vvs 40 hrs 521 Relieve spring tensions 40 hrs
522 510 Coal System Coal System 125 hrs 523 Ploughs Ploughs 8 hrs 524 Drain gearbox oils 8 hrs
525 Trippers Trippers 8 hrs 526 Drain gearbox oils 8 hrs
527 Conveyors Conveyors 24 hrs 528 Drain oil from gearboxes 24 hrs
529 Coal feeders Coal feeders 36 hrs 530 Drain oil from gearboxes 36 hrs
531 Mills Mills 96 hrs 532 Drain oil from gearboxes 96 hrs
533 Drain oil from Rollers 48 hrs
534 512 Ash system Ash system 8 hrs 535 Deasher Deasher 8 hrs 536 Drain oil from hydraulic units 8 hrs
537 Crusher Crusher 4 hrs 538 Drain oil from crusher drive 4 hrs
539 Ash pitpumps Ash pitpumps 4 hrs 540 Isolate amp install submersible pp (discuss with contractor) 4 hrs
541 6 Electrical Systems Electrical Systems 24038 hrs
Page 10 of 12
everyone every day every jab Zero Harm
0
f------t i
f------t i
i f------t
i f------t i
i f------t
i f------t i
f------t i
i f------t
i f------t
f------t i
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
61
62
63
64
65
67
7 71
72
73
System
Control Systems FCS battery systems
Fire safety system
Instrumentation FCS stations
FCS inverter output
FCS inverter input
DC systems DC systems 220v
110v
24v
HV supply High Voltage supply
Switchboards 66
415V
Diesel Generators
Stn Aux Aux Blr
Compressed Air Compressors
Receivers
WTP RO Plant
Task Name
Control Systems FCS battery systems
Remove low voltage dc batteries
Fire safety system Decommission and remove DC battery inverter
Instrumentation FCS stations
Isolate AC supply to FCS stations
FCS inverter output
Isolate inverter supply to FCS stations
FCS inverter input Decommision inverter DC supplies
DC systems DC systems 220v
Decommission battery charger
Remove batteries
Wash down battery storage area
110v Decommission battery charger
Remove batteries
Wash down battery storage area
24v
Decommission battery charger
Remove batteries
Wash down battery storage area
HV supply High Voltage supply
Disconnect 275kV supply at Davenport - Electranet
Disconnect at the 18kV side of the transformer
Disconnect the 132kV line to the House transformer
Switchboards 66
Isolate 66 switchboards
discharge breaker spring
415V discharge breaker spring
Diesel Generators
Electrical disconnection
Mechanical Disconnection
Drain fuel tank
Electrical Systems complete
Stn Aux Aux Blr
Drain Auxillary blr fuel oil tank
Drain dosing chemicals
Compressed Air Compressors
Shut down and isolate compressors
Receivers Open up Air receivers
WTP RO Plant
Duration
6 hrs 6 hrs
6 hrs
2 hrs 2 hrs
3 hrs 2 hrs 2 hrs
3 hrs
3 hrs
1 hr 1 hr
24038 hrs 16 hrs 1 hr
16 hrs
2 hrs
12 hrs 1 hr
12 hrs
2 hrs
15 hrs 4 hrs
1 hr
8 hrs
2 hrs
48 hrs 48 hrs
0 hrs
24 hrs
24 hrs
24 hrs 24 hrs 2238 hrs
24 hrs
24 hrs 24 hrs
36 hrs 2 hrs
16 hrs
16 hrs
2 hrs
0 hrs
40 hrs 8 hrs 8 hrs
2 hrs
3 hrs 3 hrs 3 hrs
1 hr 1 hr
40 hrs 8 hrs
Isolate system
Isolate generators for removal
Page 11 of 12
583
584
585
586
587
588
589
590
591
592
593
594
595
everyone every day every jab Zero Harm
0 f------t
i
i f------t
i f------t
f------t i
f------t i
f------t i
f------t i
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID
635
636
Wg Manual Index No
74
Remove all portable fire extinguishers from site
8 81
83
84
System
WTP
Fire Protection Fire feedwater
Fire Deluge systems
Diesel Fire Pumps
Electric pmps
Fire detection DCPs
Halon systems
Vesda system
Fire extinguishers
Services Workshops Mills
Plant
ElectricalCoal line
Chem Lab
Admin
Document information and management
Pressure vessel de-registration
Security Appendix
Task Name
Decommission plant
WTP Drain all vessels
Dispose of resins and chemicals
Fire Protection Fire feedwater
Isolate from supply and drain system
Fire Deluge systems
Drain at pump discharge and each deluge station
Diesel Fire Pumps Drain fuel tank engine oil and coolant
Electric pumps Isolate motors
Fire detection DCPs
Isolate and remove lead acid batteries
Halon systems Decommission and Remove Halon cylinders
Vesda system remove batteries from Vesda units
Fire extinguishers
Services Workshops
Mills Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
Plant Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
ElectricalCoal line Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
Chem Lab Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
Admin ltNew Taskgt
Document information and management
Pressure vessel de-registration
Duration
8 hrs
40 hrs 40 hrs
40 hrs
8 hrs 4 hrs 4 hrs
8 hrs
8 hrs
8 hrs 8 hrs
2 hrs 2 hrs
8 hrs
8 hrs
8 hrs 8 hrs
4 hrs 4 hrs
8 hrs 8 hrs
40 hrs 40 hrs 8 hrs 2 hrs
8 hrs
8 hrs 2 hrs
8 hrs
8 hrs 2 hrs
8 hrs
40 hrs 40 hrs
24 hrs
8 hrs 8 hrs
8 hrs
8 hrs
8 hrs
8 hrs
85 9
Page 12 of 12
Appendix E
NPS Chemical plant that needs to be decommissioned
LPG ignition system decommissioning when Confirmation amp monitoring amount to contend with Removal dateComplete Target removal date
2 x 200kg cylinders owned by origin Disconnect cylinders and connect nitrogen bank of cylinders to purge pipework after units shutdown Cylinders removed - no monitoring required
1 and half cylinders
Arrange for shift to open aux boiler and each burner separately monitor pipework for explosive gases
Get origin to remove cylinders from site 21062016
Ammonia Dilution system
20 m3 tank and filling pipework
Use as much as possible in normal operation Remnants in tank while units still operating dilute with copious amounts of sea water and drain to contaminated drains Refill tank with demin water and drain to contaminated drains system amd the refill to above pump take off level Pump water through filling pipework to dosing tanks
in week before units shut down Empty tank and monitor for ammonia and pH
1 to 2 m3 25 to 5 NH3 21062016
2 x transfer pumps and transfer pipe to unit 1 unit 2 and boiler filling pump
When dilution tank decontaminated and filled with fresh water pump water through dosing pumps and lines for 20 minutes
in week before units shut down Empty tank and monitor for ammonia and pH
21062016
3 x 2000 litre dosing tanks and associated pumps and dosing lines
use as much during normal service and then drain with diltion water to the contaminated drains system Refill with fresh water and drain to contaminated drains Boiler dosing tank can be decommissioned in week before units come off
one at a time as units come off Empty tank and monitor for ammonia and pH
3 x 200litres 025 NH3 21062016
Hydrogen banks and pipework into station
8 banks of hydrogen BOC to remove after units off Cylinders removed - no monitoring required
21062016
stable flow controllers and hydrogen pipework purged when generator is purged with carbon dioxide after units off purged monitor for explosive gases 21062016
Water Treatment Plant including Reverse Osmosis plant 98 sulphuric acid
2 x bulk chemical storage tanks (max vol 36m3)
Use as much as possible during normal service Pump down from either drain or 1inch take off until level below man hole Take off man hole cover and pump out sulphuric acid until only remnants remain Open drain to bund and wash tank out to decontaminate and then release to effluent bulk tank with diluted sodium hydroxide remnants to neutralise the mixture before pumping to ash pit and ash pond
one before units come off and the other shortly afterwards
empty tank - monitor effluent for pH 3 to 4 m3 98 H2SO4 8062016
2 x measure vessels leave empty after last regeneration and then remove bottom flange and remove standpipe and flush with water
one before units come off and the other shortly afterwards
montor pH in drain 1 or 2 litres 98 H2SO4 8062016
pipework disconnect and flush with water one before units come off and the other shortly afterwards
Monitor pH in drain lt1 litre 98 H2SO4 8062016
2 x 20 sulphuric acid dilution tanks and pipework
run tank out during last regeneration and drain remnants to effluent system Disconnect pipework and flush with water
one before units come off and the other shortly afterwards
Monitor pH in drain 2 x 200litres 20 H2SO4 8062016
50 sodium hydroxide
2 x bulk chemical storage tanks (max vol 36m3)
Use as much as possible during normal service Pump down from either drain or 1inch take off until level below man hole Take off man hole cover and pump out sodium hydroxide until only remnants remain Open drain to bund and wash tank out to decontaminate and then release to effluent bulk tank with diluted sulphuric acid remnants to neutralise the mixture before pumping to ash pit and ash pond
one before units come off and the other shortly afterwards
empty tank - monitor effluent for pH 3 to 4 m3 50 NaOH 23062016
2 x measure vessels leave empty after last regeneration and then remove bottom flange and remove standpipe and flush with water
one before units come off and the other shortly afterwards
montor pH in drain 1 to 2 litres 50 NaOH 23062016
pipework disconnect and flush with water one before units come off and the other shortly afterwards
montor pH in drain lt 1 litre 50 NaOH 23062016
50 sulphuric acid IBC run out product in service or send back to ace chemicals also could put in acid dilution tank and use in regeneration of cation resin If only remnants drain to contaminated drains system
in week before units shut down montor pH in drain lt 500litres 50 H2SO4 8062016
42 Ferric chloride IBC run out product in service or send back to ace chemicals also if only remnants remain drai in week before units shut down montor pH in drain lt 5 Litres FeCL3 42 21062016
10 Sodium metabisulphate tank Bubble air through solution for a cou[ple of days until sodium metabisulphite forms sodium sulphate and then drain to contaminated drains system
in week before units shut down montor pH and ORP in drain lt200 litres NaSO4 or SMBS 20062016
antiscalant tank run out in normal service and drain residue to contaminated drains system in week before units shut down Monitor Phosphate 20 litres antescalant 20062016
2 x anion 2 x cation and 2 x mixed bed vessels ion exchange resin
pump out resin to storage truck to be removed from site - Cations 2 x 7000litres Anions 2 x 5400 litres Mixed beds 2 x 1250 litres of ion exchange resin
one train before units come off and the other shortly afterwards
27300 litre ion exchange resin 14062016
Condensate polishers
5 x ion exchange resin charges pump out resin to storage truck to be removed from site =gt Adelaide approx 6200 litres per charge
3 resin charges when first unit is in non-return to service period and other 2 when second unit is off
31000 litre ion exchange resin 14062016
Sulphuric acid measure vessel and Sodium hydroxide measure vessel
leave empty after last regeneration and then remove bottom flange and remove standpipe and flush with water
in week before units shut down montor pH in drain 1 or 2 litres 98 H2SO4 and 50 NaOH soln
8062016
pipework (concentrated chemical) disconnect and flush with water in week before units shut down montor pH in drain lt1 litre 98 H2SO4 and 50 NaOH soln
8062016
Sulphuric acid dilution vessel and pipework run tank out during last regeneration and drain remnants to effluent system Disconnect pipework and flush with water
in week before units shut down montor pH in drain 250litres 20 H2SO4 8062016
Ferrous Chloride
12 ferrous chloride tank pump out ferrous chloride for disposal and wash out remnants to contaminated drains system with copious dilution
in week before units shut down montor pH and iron in drain 5 m3 12 FeCL2 soln 21062016
dilution 1-2 solution tank Use as much as possible during normal operation and flush out remnants of tanks to contaminated drains system
in week before units shut down montor pH and iron in drain 15m3 1 - 2 soln 21062016
Carbon dioxide
36 G size cylinders Use carbon dioxide up in generator purge and purging hydrogen lines After Units off Could start one unit purge in last week of running
21062016
Pipework break pipe work at various locations to release carbondioxide After Units off Could start one unit purge in last week of running
21062016
Generators
2 x hydrogen in generator space Displace hydrogen with carbon dioxide at ealiest time possible and then purge with air After Units off Could start one unit purge in last week of running
orsat check 21062016
Chlorine plant 1000litres of 2 to 3 hydrochloric acid solution
Drain to contaminated drains system with copious waterseawater dilution in week before units shut down montor pH in drain 5000 litres lt1 HCl solution 21062016
Auxillary boiler dosing tank 60 litres BWT dosing solution Neutralise with acid or dilute with lots of water and into contaminated drains system in week before units shut down montor pH in drain 40 litres BWT 21062016
Workshop and laboratory chemicals amp hazardous substances Various chemicals solvents oils and Greases Arrange disposal by contractor After shut down 27062016
Bottled Gas
Various Cylinders on site Arrange transport to BOC After shut down Cylinders removed - no monitoring required
21062016
SF6 amp Freon in GCB amp transformers and Spare SF6 Freon cylinders SF6 and Freon in Generator circuit breaker and transformers and cyliders of SF6 and Freon in workshops and store compound
Arrange recovery and disposal by contractor After Shut down 21062016
Radio active substances (XRF etc etc) Pulsed XRF 2 x hand held XRF and Benchtop XRF in Laboratory
Oxford Instruments model X-Met 3000T Tube serial no 702033 (EPA no 21237) has been disabled Hand held pulsed and benchtop XRF to be sold
After Shut down 1102016
Petrol Tank underground storage NPS Store Get pumped out for Macmahons to remove
Timeframe After Shutdown
Target date 30062016
Status Complete
Diesel tanks Fire diesel tanks Cat Generator Tank
Get Pumped out Get Pumped out
Late June Late June
30062016 30062016
Complete Complete
Fuel Oil Aux Boiler Main fuel oil tank PPS fuel oil tank Flush fuel oil system including PPS to NPS pipeline
Get pumped out and cleaned Get pumped out and cleaned Clean out
Get pumped out and cleaned
After Shutdown After Shutdown After Shutdown
After Shutdown
31082016 31082016 31082016
31082016
Emptied - to be cleaned Emptied - to be cleaned Emptied - to be cleaned
Emptied - to be cleaned
Oils Plant - all but transformers and turbines Workshop and stores
Pump out - fans air heaters BFPs ID fans Gr Fans Mills Deashers and ploughs collect together on shut down
After Shutdown After shut down
31082017 31082017
Transformers degass- Remove Freon gas Coal line transformers site transfromers
Reclaim at shut down Reclaim when de-energised
After shut down June
31082017 31082017
Generator circuit breakers remove SF6 Generator circuit breakers SF^ in store
reclaim gas from circuit breakers Dispose of gas cylinders
after shut down after shut down
31082017 30062016 Complete
Batteries Various NiCad Lithium NiMetal hydride etc Lead acid in disposal area Battery room batteries
collect together on shut down collect together at shutdown McMahons
After shut down After shut down After shutdown
30062016 30062016 30062016
Complete Complete Complete
Mercury Globes and mamometers etc Collect together on shutdown After shutdown 30062016 Complete
Greases and permalubes Workshop and stores Collect together on shutdown After shutdown 31082017
Appendix E1
NPS Chemical plant that needs to be decommissioned
Item number decommissioning when amount to contend with
Ammonia Dilution system
1 NPS ammonia dilution 20 m3 tank Drain tank and flush out in week before units shut down 1 to 2 m3 25 to 5 NH3
2 3 x 2000 litre dosing tanks at NPS pump out remnants one at a time as units come off 3 x 200litres 25 NH3
Water Treatment Plant including Reverse Osmosis plant
98 sulphuric acid
3 2 x bulk chemical storage tanks (max vol 36m3)
at NPS Pump out tank and decontaminate Remove built up sludge
one before units come off and
the other shortly afterwards 3 to 4 m3 98 H2SO4
4 2 x 20 sulphuric acid dilution tanks at NPS pump out tank and decontaminate one before units come off and
the other shortly afterwards 2 x 200litres 20 H2SO4
50 sodium hydroxide
5 2 x bulk chemical storage tanks (max vol
36m3) at NPS Pump out tank and decontaminate Remove built up sludge
one before units come off and
the other shortly afterwards 3 to 4 m3 50 NaOH
6 50 sulphuric acid IBC at NPS Pump out tank and decontaminate Remove built up sludge in week before units shut down lt 500litres 50 H2SO4
7 10 Sodium metabisulphate tank RO plant NPS pump out tank and decontaminate in week before units shut down lt200 litres NaSO4 or SMBS
8 antiscalant tank RO plant NPS pump out tank and decontaminate in week before units shut down 20 litres antescalant
9 2 x anion 2 x cation and 2 x mixed bed vessels
ion exchange resin at NPS
pump out resin to storage truck to be removed from site - Cations 2 x
7000litres Anions 2 x 5400 litres Mixed beds 2 x 1250 litres of ion exchange
resin
one train before units come off
and the other shortly afterwards 27300 litre ion exchange resin
Condensate polishers
10 5 x ion exchange resin charges at NPS pump out resin to storage truck to be removed from site =gt Adelaide approx
6200 litres per charge
3 resin charges when first unit is
in non-return to service period
and other 2 when second unit is
off
31000 litre ion exchange resin
11 Sulphuric acid dilution vessel at NPS pump out tank and decontaminate in week before units shut down 250litres 20 H2SO4
Ferrous Chloride
12 NPS 12 ferrous chloride tank pump out tank and decontaminate in week before units shut down 5 m3 12 FeCL2 soln
13 NPS dilution 1-2 solution tank pump out tank and decontaminate in week before units shut down 15m3 1 - 2 soln
Auxillary boiler dosing tank
14 NPS AUX BLR - 60 litres BWT dosing solution pump out tank and decontaminate in week before units shut down 60 litres BWT
Workshop and laboratory chemicals amp hazardous substances
15 Various chemicals solvents oils and Greases
at NPS remove workshop chemicals oils etc After shut down manifest
16 Various chemicals paints amp glues at NPS Remove Site store oils and chemicals After shut down manifest
Petrol Tank underground storage
17 NPS Store Get pumped out for Macmahons to remove tank After Shutdown
Max 115 Kilolitres hopefully
done to lt1000 litres
Diesel tanks
18 NPS and PPS Fire diesel tanks Move to main diesel tank near tower C Late June 3700 litres max
19 NPS Cat Generator Tank Move to main diesel tank near tower C Late June 4700 litre max
Fuel Oil
20 NPS Aux Boiler tank Pump out and Clean After Shutdown 5000 litres max
21 NPS Main fuel oil tank Pump out and Clean After Shutdown 250000 litres max lt50000 litres
22 PPS fuel oil tank Pump out and Clean After Shutdown lt10000 litres
23 fuel oil Pipe from delivery point to NPS and
PPPS service tanks clean out line After Shutdown
Unkown
24 fuel oil Pipe from PPS service tank to PPS LP
and HP oilheater and return line Clean out line After Shutdown
Unkown
25 PPS fuel oil lp heater X 2 Clean out heater After Shutdown Unkown
26 PPS fuel oil hp heater X 2 Clean out heater After Shutdown Unkown
27 PPS fuel oil lines to burner and back to heaters clean out line After Shutdown Unkown
28 NPS fuel oil heaters x 2 Clean out heater After Shutdown Unkown
29
NPS fuel oil lines to transfer pumps service
pumps lines to burners and back to main oil
tank NPS unit 1 and 2
Clean out lines After Shutdown
Unkown
Oils
30 NPS Turbine oils from unit 1 and 2 Pump out and dispose After Shutdown 32860 x 2
31 NPS unit turbine oil tanks and oil conditioners clean out After Shutdown
32 NPS turbine oil transfer lines and storage tank clean out After Shutdown
33 NPS mills x 12 ground floor collect together on shut down After shut down 1800 x 12
34 NPS Primary and secondary air fans above
ground x 2 Pump out and dispose
After Shutdown 770 x 4
35 NPS Primary air and secondary air heaters lube
oil X 2 - above ground level Pump out and dispose
After Shutdown 425 X 4
36 NPS Primary air and secondary air heaters
gearbox oil X 2 - above ground level Pump out and dispose After Shutdown 80 x 4
37 NPS Boiler Feed pumps grbx tank amp cooler X 4 Pump out and dispose After Shutdown 2800 x 4
38 NPS Deasher x 2 hydraulic oil Pump out and dispose After Shutdown 60 x 2
39 NPS Coal line ploughs x 2 Pump out and dispose After Shutdown 450 X 2
40 NPS ID fans x 4 Pump out and dispose After Shutdown 770 x 4
41 NPS GR fans x 2 Pump out and dispose After Shutdown 500 x 2
42
NPS Conveyer gearboxfluid drives 1(x2) 2(x2)
3 7(x2) 9(2)11(x2) - above and below ground
level
Pump out and dispose
After Shutdown
130 to 372 mainly in 150litre
range
43 NPS compressors x 3 Pump out and dispose After Shutdown 100 x 3
44 NPS Cat generators x 2 Pump out and dispose After Shutdown 200 x 2
45 Workshop storages at NPS collect remove from site and dispose After Shutdown y
46 Stores Shed oils and grease at NPS remove from site and dispose After Shutdown lots
47 waste oil collection area at NPS remove from site and dispose After Shutdown 12000 + litres
Transformers oils
48 NPS transformer - 2 x stepup Fuji Remove oil late june 2x 53000litre
49 NPS transformer - 2 x unit Wilson Remove oil late june 2 x 13000 l
50 NPS transformer - 2 x station tyree Remove oil late june 26000
51 Fuel oil unloading Remove oil late june 600
52 Town water Remove oil late june 600
53 Spare step up at NPS Remove oil late june 50000
54 PPS PPS Met vickers step up x 4 Remove oil late june 4 x 69000
55 PPS Ferranti house Remove oil late june 36000
56 PPS Unit Remove oil late june 4 x 4000
57 PPS Aux Remove oil late june 4 x 700
58 PPS GP Remove oil late june 1400
59 PPS ASH Remove oil late june 1400
60 PPS coal line starter Remove oil late june 2100
61 Spare unit at PPS Remove oil late june 1300
Batteries
total 565900 litres
62 Various NiCad Lithium NiMetal hydride etc at N remove from site and dispose After shut down Unknown
63 Lead acid in disposal area at NPS remove from site and dispose After shut down Unknown
64 NPS Battery room batteries remove from battery room and put on pallet (outside) late june Unknown
65 NPS Battery room Batteries Remove from site late june Unknown
Mercury
66 Globes and mamometers etc at NPS remove from site and dispose After shutdown Unknown
Greases and permalubes
67 Workshop and stores at NPS remove from site and dispose After shutdown Unknown
Coolant
68 Cat diesels NPS Pump out and dispose late june 100 litre
69 PPS fire diesel pumps Pump out and dispose late june 100 litre
Appendix F
D I
I
McMAHON SERVICES a allestrin Mi=iMMi
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
JSEA Number AD 010
Project and Organisation Details
Project Site Port Augusta Power Station Project Manager Ross Fitzgerald Sign Phone 0439 034 900
Title CARTING MATERIAL FROM BORROW PIT CARTING ASH FROM
DISCHARGE LEVYrsquoS TO DEMO PLANT SITE Site Supervisor
Mick Oster Sign Phone
0400 923 758
Job Task Excavation of material from borrow pit or ash from discharge levyrsquo carting
material to demo plant site driving dump trucks on road way to demo site
Site Safety Advisor Louis Kokkinos Sign Phone 0409 222 087 1
Principal Contractor Flinders Power
Job Number 5201750 JSEASWMS Creation 10 Revision Number 1 Has a Project Risk Assessment Register been Developed for the Project
Implement the PRAR control measures and place into this JSEASWMS
Legislative Compliance Review Information referenced during the JSEA Planning ndash Record applicable document reference number and name below
Legislation Codes of Practice Standards Emergency Plan Procedures SWIrsquos Engineering Work Cover SDS Other
WHS Act 2012
WHS Regulations 2012
CoP Excavations Cop Mobile Plant
Project Emergency Plan
SWI 0400 Plant and equipment
SWI 0100 Manual handling
SWI 0327 Selection of Hand
Protection
Traffic mngmt amp Site movement of plant Environmental protection Act 1993 ndash EPA license 13006
High Risk Work Structural Collapse ChemicalFuelRefrigerant Lines Work in Tunnel Explosives
Fall from Heights gt 3m Demolition of Structures Energised Electrical Installations Mobile Plant Work Involving Diving
Disturbance of Asbestos Pressurised Gas Pipes Mains Contaminated Flammable Atmosphere Traffic Tilt-upPrecast Concrete
Excavation gt15m Telecommunication Towers Extremes of Artificial Temperature Confined Spaces Risk of Drowning
Qualifications Licenses Plant Equipment
LE Excavator ST Service Truck HS Dump Truck HR Truck Excavator Moxy truck Fuel Trailer and Service Truck Water cart
Permit Tick Required
Asbestos Daily Diary (F062)
Confined Space (F603)
Demolition (F285)
Excavation Penetration (F636)
Excavation Entry (F166)
Hot Work (F630)
Lifting Operation - Lift (F189)
Working at Heights (F676)
PPE Tick Required
Important
(1) Persons within 10m of noisy plantprocess must wear Hearing PPE
(2) Hand protection must be selected via SWI327 - manual tasks
(3) Double eye protection to be worn when grinding
IF PRINTED -Page 1 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin Mi=iMMi
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Potential Hazards This list may not identify all potential hazards present Visit the job site to ensure all hazards are identified and implement appropriate control measures in the JSEASWMS
Fire Ignition Sources
Will hot work be conducted Implement Fire prevention strategies
(Complete the Permit)
Refer to SWI344-Completing a Hot Work Permit Standard S023-Hot Work
Permit S002-Managing Risk of Risk in Fire Ban Seasons
Hazardous Substances Will work task involve contact with any Hazardous Substances
Refer to the SDS and consider specialised PPE precautions
Refer to SWI099-Accessing SDS SWI123-Handling Hazardous Subs
Environmental Impact- Vibration Noise Will vibration or noise emission extend beyond the project perimeter
Is vibration monitoring from demolition process especially when working near
heritage type buildings (Check the PRAR - F224)
Refer to SWI147-Environmental Management - Noise amp Vibration Control
Hazardous Manual Task
Will the worker be lifting moving objects or material
Workers to select controls measure based upon HIRAC
Correct lifting techniques Workers to stretch before and during task
Refer to SWI100-Hazardous Manual Tasks SWI102-Stretching Techniques
Services Will service isolation disconnection for plantequipmentinfrastructure
Any overheadunderground services within work area
Refer to SWI704-Service Isolation - Lock out Tag Out
Environmental Impact- Decontamination of Plant Equipment Will Plant Equipment and PPE require decontamination at the end of each
day and or when exposed equipmentplant is to leave the
asbestoscontaminated area
Refer to SWI147-Environmental Management - Noise amp Vibration Control
Excavations
Does the task require an excavation to be dug
Check for services prior to excavation (Complete the Permit)
Refer to Standard S053 - High Risk Construction Activity- Excavations
Emergency Preparedness Establish an emergency plan for the task
Refer to SWI082-Emergency Planning for Project Sites
Environmental Impact - Dust Will the task generate dust or is there a requirement for disposal of hazardous
waste
Refer to SWI148-Environmental Management - Dust Control
Working at Heights amp Falling Objects
Will the task require workers to work at height or around open
penetrations voids Are they trained to perform the task
Delineate areas where workers amp others may pass (Complete the Permit)
Refer to SWI 0085 - Prevention of Falls - Planning
Plant Machinery amp Equipment Will the plant work area be delineated away from other works
Is the operator ticketed licensed for this type of equipment plant
Refer to Standard S055 - HRCA - Safe Work Zone - Traffic Management SWI-
026-TicketLicencesCompetencies to Perform Work
Environmental Impact - Haz Substance Storage Spills Is there potential to release pollutants to drainrsquos marine waterways ground
atmosphere
Consider if any potential spill sources exist at the work area
Consider the need for bunds drip trays spill blankets absorption etc
Refer to SWI149-Environmental Management - Soil Erosion Drainage Management
Slip amp Trip Hazards
Will the task produce potential slip and or trip hazard (Material
Equipment)
Implement housekeeping strategies
Lifting Operations (Crane Lifts) Consider if work task involves crane lifts
Ensure a lift Permit has been conducted (Complete the Permit)
Refer to Lifting Operation - Lift Permit (F189)
Environmental Impact - Waste Disposal Will the task create prescribed waste requiring special disposal
Refer to SWI152-Environmental Management - Waste and Recycling
Task Security Nearby Works
Will barriers delineation be required to exclude personnel or vehicles
from the work area
Refer to Standard S051 - HRCA - Safe Work Zone - Site Security
Cuts and Abrasion Is there a risk of cuts abrasion
Consider task separation or adequacy of PPE
Refer to SWI327-Selection of Hand Protection
Environmental Impact - Cultural Heritage Could the task uncover indigenous or European artefacts
Could the task impact on heritage buildings structures
Refer to SWI154- Managing Cultural Heritage Protocol Uncovering Artefacts
Customer and Surrounding Property
Consider the potential risk to neighboursrsquo property
Consider potential damage to customer property nearby
Refer to Standard S051 - HRCA - Safe Work Zone - Site Security
Traffic Management Consider how construction traffic will access and egress the workplace
in a safe manner
Refer to Standard S055 - HRCA - Safe Work Zone - Traffic Management
Asbestos Consider if personnel may be exposed to asbestos during this task
If unsure check the Asbestos Register
Refer to SWI 0349- Planning and Asbestos Removal Task SWI 0233 Friable
Asbestos Personal Decontamination Process
Weather Conditions Working Outdoors
Does the weather pose a risk to a workerrsquos health Safety or the environment Consider the ambient conditions associated hazards Consider precautions to prevent exposure to
heatcold
Noise Will the work create higher noise levels Consider the need for hearing protection in the work area
If hearing PPE is deemed as required then all workers in a 10-metre radius (minimum) of the noise source must wear hearing PPE
IF PRINTED -Page 2 of 9 104 Exploration Dr Karratha UNCONTROLLED 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
-
-
-
-
the hazards
C V 0 Ugt ts
Level2 e ~
Ugt 0 Substi tute the hazard with someth ing co
Q) b safer E J e co Isolate the hazard from people Ugt
C -0 8 C Reduce the risks through engineering co
s contro ls a 1ij ~ Q)
V c s a _]
ai ai Level3 0 gt Q)
_J
Reduce exposure to the hazard
V using administrative actions
V Use personal protective equipment
LOWEST L E A S T
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Hazard Analysis and Control Worksheet
Step 1 Consequences (Severity)
1 Insignificant bull Cause a near miss needs to be reported
bull Limited impact to a local area but no long-term effects
2 Low bull Injury requiring First Aid treatment and or short term discomfort
bull Localised short to medium term impact to the environment
3 Moderate
bull Potential for injury resulting in medical attention
bull Localised medium to long term impact to the environment
bull Damage to plant property
4 Major bull Serious injury Long term disability
bull Widespread or off-site release medium to long term impact
bull Major financial loss damage to plant Loss of production capability
5 Extreme
bull Potential to be fatal Permanent disability
bull Release off-site with detrimental widespread irreparable environmental damage
bull Destruction of property or plant Huge financial loss
Step 4 Action Plan
Low Minimal risk monitor where work changes
Moderate Some action may be required
Supervisor to determine and monitor
High Activity Must be reviewed by Project Manager and have additional risk controls built into the SWMS and work procedure
Extreme
Activity to be re-planned andor re-designed
Must reduce risk immediately ndash highest priority Work is not commencing until appropriate controls are in place
Hierarchical of Controls
Control measures must be ranked from the highest level of protection and reliability to the lowest This ranking is known as the hierarchy of control The higher order controls must always be considered first
If residual risks are ranked as lsquoHIGHrsquo the team shall determine the adequacy of controls and consider further risk reduction strategies (Refer to step 4 - Action Plan)
Step 2 Potential (Likelihood)
A Certain to Occur
Expected to occur in most circumstances
B Likely Will probably occur in most circumstances
C Possible Might occur at some time
D Unlikely Could occur at some time
E Rare May occur only in exceptional circumstances
Step 3 Risk Matrix Consequence
Insignificant Low Moderate Major Extreme Level 1 Level 2 Level 3 Level 4 Level 5
Lik
eli
ho
od
Certain to Occur (A) H H E E E
Likely (B) M H H E E
Moderate (C) L M H E E
Unlikely (D) L L M H E
Rare (E) L L M M H
IF PRINTED -Page 3 of 9 104 Exploration Dr Karratha UNCONTROLLED 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
bull
-iW=iMdbullMi McMAHON q a allestrin SERVICES 1ntract ft_ -_ __
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Job Safety Environmental Analysis (JSEA) Safe Work Method Statement
Step Process Steps Potential Hazards Inherent Hazard Control Measures Residual No List the steps needed to do the Against each step list potential hazards that Risk For each hazard identify control measures to eliminate or minimise the risk of Risk Action by
job in the sequence to be done could cause injury when the jobrsquos done Rating injury (hierarchy of controls) Rating (Print name of person)
1 Pre-start talks with Michael Atkinson Ben Knoop Louis Kokkinos and Mick Oster to determine dumping area within live demo plant
Miss communication between civil and demo team causing work crew overlap hazards such as collision with demo plant personnel or LV
H Consultation in site office dumping area in live demo plant to correctly locate dumping zone Visually inspect demo plant and personnel near dumping zone Identify the need to use 2-way communications on channel 27
L Michael Atkinson
Louis Kokkinos
Mick Oster
Ben Knoop
2 Establish one way hauling routes for dump truck drivers ndash Pre-drive route with Mick Oster Louis Kokkinos and Ben Knoop
Interaction or collision with other plant people or vehicles in the area or on route Demo plant LV or personnel unclear or unaware of one-way route
H Pre-drive route and communicate traffic management plan to dump truck drivers Ensure dump truck drivers understand one-way route by providing them with guided tour and escort Provide map of route to drivers Drivers must adhere to traffic management plan Drivers must not drive on other road ways within live demo plant Dump truck drivers must use 2-way radio to announce arrival and departure at live demo plant on haul roads and dumping area
L All personnel signed onto this document
Dump truck drivers speeding on haul E All dump truck drivers must not exceed MAX 20 Kmh in demo area H All personnel signed roads or making contact with overhead at all times Dump truck drivers must assume that over lapping demo onto this document hazards such as light poles or electrical work crew will not expect them to be in their work zone and should lines prepare to stop or give way at any time Dump truck drivers must
not raise tubbed or unload in any area other than designated areas as per attached map
Demo crew not aware of us in their work H Demo supervisor must brief work crew of civil and demo crew L Demo crew and zone or one-way haul roadsroute - interactions and provide work crew and plant operators with map of team Interaction of heavy light vehicle resulting civildump truck hauling roads and one-way areas Demo work crew in accident causing injury plant damage plant LVs and personnel must avoid civil haul road areas if
practicable to do so
3 Civil work crew within demo site
High risk works associated with movements of mobile plant contact with plant and personnel crush injuryrsquos or the potential for death
E Dump truck operators must not exit cabins in active demolition areas unless itrsquos for an emergency or vehicle has broken down Drivers must wear hard hats and safety glasses if in the active demolition site 2-way radio to be used to communicate emergency situations or any requirements to exit truck cabins Existing muster points apply for civil team
M All personnel signed onto this document
4 Suppressing dust Dust arising from borrow pit activities hauling on roads or carting or excavating levy ash creating health environmental damage or concerns
H Implementation of 3 level Trigger Action Response Plan must be utilised when monitoring dust levels during ongoing works Use of water cart on haul roads and any other areas where dust suppression is required
L All personnel signed onto this document including water cart operator
IF PRINTED -Page 4 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Step No
Process Steps List the steps needed to do the job in the sequence to be done
Potential Hazards Against each step list potential hazards that
could cause injury when the jobrsquos done
Inherent Risk
Rating
Hazard Control Measures For each hazard identify control measures to eliminate or minimise the risk of
injury (hierarchy of controls)
Residual Risk
Rating Action by
(Print name of person)
Ash material drying out causing dust to become airborne and leave the site boundary causing environmental harm
H Constant monitoring of area to ensure material is wet down and suppressed Capping material to be placed on ash to prevent becoming airborne and suppressed with water as necessary to prevent dust becoming fugitive Direct dumping and immediate spreading to avoid stockpiling of ash causing unnecessary dust
L All personnel signed onto this document including water cart operator
5 Dumping ash material in PPS A station basement area Excavating ash from levee
Dumping on uneven surface causing risk of tray tipping over
H No dumping on uneven surface unless the use of spotter and the cab is not articulated Always tip with the cab and tray in line to avoid tipping tray Assess ground conditions and drive to conditions at all times
L All personnel signed onto this document
Slumping of ramp levee and stockpile causing material to give way
H Operators to check condition of ramp levee and stockpile to assess area for cracking slumping and soft spots that could cause machine to become unstable
L All personnel signed onto this document
Tipping material without a tip head to back onto
H Operators are to follow instructions from the dozer excavator operator and are to tip short with a spotter so the dozer can push the material Dump truck operators must not tip short without the use of the spotter to guide into position via verbal or hand signals
L All personnel signed onto this document
Tipping over basement edge without tip head causing potential drop of machine and injury to personnel
H Operators to use established ramp at south end of basement as tip location to eliminate tipping over live edge Operators are to tip short with a spotter so the dozer can push the material into basement
L All personnel signed onto this document
IF PRINTED -Page 5 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
I I I I I I
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Step No
Process Steps List the steps needed to do the job in the sequence to be done
Potential Hazards Against each step list potential hazards that
could cause injury when the jobrsquos done
Inherent Risk
Rating
Hazard Control Measures For each hazard identify control measures to eliminate or minimise the risk of
injury (hierarchy of controls)
Residual Risk
Rating Action by
(Print name of person)
IF PRINTED -Page 6 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
D
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
How to Complete the JSEASWMS Process
1 When developing a JSEASWMS refer to the applicable Legislation Code of Practice and Company Standards 4 Each of the hazards identified must be risk rated hazard control measures defined precautions and
and Safe Work Instructions (Documents referenced in this JSEASWMS must be recorded on page one) equipment must be identified to reduce the risk
5 Responsibilities are allocated to each control measure defined in the JSEASWMS 2 The job is to be broken up into individual process steps 6 All workers involved in the task must review the document and it must be accepted by workers signing 3 For each step the potential hazards are identified
this JSEASWMS form
NOTE This is a legally binding document to which all workers must adhere
Approval
I the undersigned Supervisor confirm that I have checked all qualifications provided and verify that they are applicable and current I have also ensured that all inductions have taken place and that all tools and equipment are properly maintained and safe to use I have issued all relevant permits and have ensured to the best of my ability that the work area is safe and that the work will not damage any property or injure any persons
Supervisor Name Supervisor Signature Date 9th August 2017
Development amp Review
Initiators of JSEArsquos are responsible for consulting with supervisors engineers or other persons directly in charge of the work and any other personnel involved in the execution of the task (as appropriate) for input into the JSEASWMS during the development and review stages
Other persons may be consulted for technical advice or review of the JSEA to ensure that the proposed measures are effective and workable (Record names below)
The JSEASWMS shall be reviewed
(1) At the commencement of a new task (2) If a task changes (3) If a hazard been identified (4) At the JSEASWMS three-month anniversary
Developed Consulted By Reviewed By
Date 7th August 2017 Date 8th August 2017 Reason for review Change of TMP map and inclusion of TARP
Name
Name
Louis Kokkinos
Ben Knoop
Position
Position
Site Safety Advisor
Site Civil Engineer
Name
Name
Louis Kokkinos Position
Position
Site Safety Advisor Added step 4
Changed TMP map on last page
Name Mick Oster Position Senior Site Supervisor Name Position
Name Jamie Kirk Position Site Safety Advisor DEMO Name Position
IF PRINTED -Page 7 of 9 104 Exploration Dr Karratha UNCONTROLLED 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
JSEASWMS Sign off and Acceptance of Proposed Work Method and Associated Responsibilities
bull I the undersigned confirm that I have been consulted regarding the above JSEASWMS and that its content is clearly understood
bull I also confirm that my required qualification(s) etc to undertake this activity isare current and that I am competent to complete the work safely and without risk to my own or the health and safety of others
bull I clearly understand that the control(s) in this JSEASWMS must be applied as documented otherwise work is to cease immediately and I will ensure that the work area is made safe as far as is reasonably practicable
No Surname First Name Classification Employed by Signature Date
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20 bull
bull ASH D AM
bull ENTRANC E R OAD TO AUGUSTA POWER STATION
IF PRINTED -Page 8 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
bull
bull BORROW PIT
bull M
M
dg h
fff
fff
IF PRINTED -Page 9 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
Appendix G
Power
Augusta Power Stations
Dust Management Plan
Demolition and Site Rehabilitation
Flinders Power May 2018
Title Names Signatures Date
Approval Facility Manager APS
Approval Program Manager ndash Flinders Sites
Document History
Rev Date Amended by Description of Changes
Draft Initial Draft Version
Rev 1 24082016 Updated and changed to cover Make ndashSafe Period
Rev 2 09092016 Updated and changed to cover Demolition Period
Rev 3 05102016 EPA recommendations and corrections incorporated
Rev 4 05102016 Ash Storage Area dust management options modified
Rev 5 05112016 Final version incorporating EPA feedback
Rev 6 01022017 Revised following dust event of 1st and 2nd January 2017
Rev 7 03032017 Revised to address EPA feedback of 20th February 2017
Rev 8 09082017 Revised to address excavation transport and use of ash for backfill
Rev 9 08122017 Revised to incorporate changes as per EPA letter of 6 December 2017
Rev 10 03012018 Revised to address proactive watering of the former coal stockpile
Rev 11 25052018 Revised to address the capping of the former coal stockpile area
Rev 12 15618 Revised to add seeding of the former coal stockpile area
Printed copies are uncontrolled Please ensure you are referring to the most current version 1
AindersPower
Contents 1 Introduction amp Purpose 3
2 Background 4
3 Setting 5
Stockpile 5
Ash Storage Area 5
Coal Conveyor System 6
Coal Storage Bins 6
Roadways 7
Demolition Activities 7
Utilities Available During Demolition 8
5 Environmental Conditions 14
EPA Notification of Process Changes 14
Licence Conditions 14
Ambient Dust Monitoring ndash TSP amp PM10 17
Speciation 20
6 Dust Management Plan (DMP) 21
Plan Stakeholders - Roles and Responsibilities 21
Implementation and Control Actions 23
Table 1 Aspect and Control Action 1 Coal Stockpile Operations 24
Table 2 Aspects and Control Action 2 Ash Storage Area Management 26
Table 3 Aspects and Control Action 3 Coal Conveyor System and General Site 28
Table 4 Aspects and Control Action 4 Site Roads (General Conditions) 29
Table 5 Aspects and Control Action 5 Demolition Activities 30
7 Ash Storage Area ndash Dust Management 32
Whole of ASA Dust Suppression Treatment 32
Trigger Action Response Plan ndash Ash Storage Area 32
8 Former Coal Stockpile Areandash Dust Management 37
Trigger Action Response Plan ndashStockpile Revegetation 37
9 Dust Monitoring and Evaluation 39
10 Community and Stakeholder Engagement 40
101 Complaint Management 41
References 42
Appendices 43
Printed copies are uncontrolled Please ensure you are referring to the most current version 2
AindersPower
1 Introduction amp Purpose Flinders Power operates the Flinders assets which comprise the Northern and Playford Power Stations in Port Augusta (known collectively as the lsquoAugusta Power Stationsrsquo (APS)) as well as the Leigh Creek Coal Mine Flinders Power also formerly maintained a dedicated rail line between Leigh Creek and Port Augusta
Flinders Power is strongly committed to sound environmental management as demonstrated within the board-endorsed Environment amp Community Policy The Policy states a commitment to partnering with the communities in which Flinders Power operates and a focus on continual improvement of environmental performance
The nature of the operation if poorly managed has the potential to create fugitive dust emissions which may adversely impact on the amenity of the local community Therefore the objectives of dust control are to
1 Minimise and control the impact of Flinders Power closure activities on air quality and emission of dust from site operations
2 To ensure compliance with EPA Licence requirements
3 Maintain environmental amenity and a strong relationship with the local community and regulatory authorities
To achieve these objectives a Dust Management Plan (DMP) has been formed The objectives of the DMP are to
bull Nominate potential sources of dust emissions
bull Describe methods and responsibilities for dust management controls to minimise the potential for impacts to the environment
bull Clearly define the responsibilities and actions required to respond to environmental incidents
bull Outline the methods to communicate and engage with the local community in relation to dust management and
bull Outline the monitoring and reporting arrangements to ensure ongoing compliance with the DMP
Scope This plan applies to activities covered under
bull EPA Licence 13006 (Northern amp Playford Power Stations)
This document is also part of the site Environmental Closure and Post Closure Plan where specific activities and responsibilities for performing dust management measures are assigned to the appropriate parties During the site demolition process Flinders Power has specific responsibility for areas not covered by the plant demolition project These areas the Ash Storage Area and the Coal Stockpile Pad are subject to separate rehabilitation and revegetation projects covered in the Environmental Closure and Post Closure Plan
Dust management activities involved with the decommissioning and demolition of the plant and structures on site are covered in the demolition plans developed under the Project Alliance Agreement
Printed copies are uncontrolled Please ensure you are referring to the most current version 3
AindersPower
2 Background
The Playford Power station (PPS) ceased operation in April 2012 The Northern Power Station (NPS) ceased operation on the 9th May 2016
NPS and PPS utilised a supply of coal delivered daily by train from the Leigh Creek Coalfields After combustion in the boilers ash was collected from the bottom of the boiler mixed into a seawater slurry and transferred to the Ash Storage Area by pipeline Fly ash from the exhaust gas was captured by electrostatic precipitators at NPS bag house filters at PPS and then sold to secondary users with the excess transferred to the Ash Storage Area
The Ash Storage Area was continually filled with deposited ash and sea water slurry from the boilers The nature of this mixture allowed the surface to form a salt crust when it dried out - due to the ever-changing location of the deposition field creating high areas of ash During heavy rain this surface crust was occasionally damaged allowing winds to disturb the ash and potentially blow it off site
There was also a flooding regime for the Ash Storage Area whereby internal levees were built up filled with an ashwater mixture and then quickly released to allow for a large portion of the surface of the Ash Storage Area to be flooded so that a salt crust could re-form on top This management strategy changed in October 2016 due to the erosive effects of utilising a pure seawater flooding technique (as opposed to an ash and seawater slurry) and the increased risks associated with dust generation In November 2016 the 212Ha Ash Storage was sealed utilising a dust suppressant applied by air and land
The coal stockpile at Augusta Power Stations was designed as an emergency supply should mine site or railway operations be impacted Historically the coal stockpile has been used on only intermittent occasions However during the last few years of operation due to increased variability in load profile in response to increased volatility in the SA energy market the stockpile was utilised as a dynamic stockpile The movement of coal on the stockpile became a frequent activity to meet strategic stockpiling or generation output needs as required The increased use of the stockpile increased the risk of fugitive dust emissions
To reduce these impacts during operation there were established Operating Instructions relating to the methods of stockpiling and reclaiming coal from the stockpile the use of water cannons for wetting down the stockpile the use of a water truck for applying dust suppressant to the surface of the stockpile water and a description of weather conditions for operations on the stockpile
Whilst these actions were effective in reducing dust emissions from the stockpile and Ash Storage Area a change in strategy continued monitoring vigilance and innovation is required to maintain control over dust emissions during the demolition and site rehabilitation phase
Other identified sources of minor fugitive dust during this phase include roadways and during demolition of coal and ash handling plant
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AindersPower
3 Setting
The township of Port Augusta is located approximately 300km north of Adelaide on the northern tip of Spencer Gulf and has a Dry Arid Low Latitudes climate
Figure 2 demonstrates the seasonal wind patterns for the region including wind direction and wind speed The charts indicate that strong regular southerlies are dominant during the summer season Port Augusta township especially the suburb of Willsden is potentially affected by fugitive coal dust and ash for most of the year except during winter when the dominant wind direction changes from southerlies to northerlies
Stockpile
The distance between the coal stockpile and the closest residents in Port Augusta to the north is approximately 35km (refer to Figure 1 below)
Coal formerly arrived from the Leigh Creek mine in open rail wagons and was bottom dumped via the rail car dumper on the rail line near the coal stockpile It was then conveyed to either the main coal storage bins for immediate use or to the stockpile for storage
Maintaining the moisture level of the coal to a point where surface dust mobilisation is decreased from the stockpile was achieved by the use of water cannons on the stockpile
The coal stockpile has been decommissioned and as of September 2016 the pad was being rehabilitated and revegetated A sprinkler system has been established over the surface area to promote vegetation establishment and control dust
Ash Storage Area
Waste ash from the boilers and the electrostatic precipitators was formerly mixed with seawater and piped to the Ash Storage Area
Deposited ash formed a salt crust due to the evaporation of water from the mix which stopped the ash from being mobilised and entrained by wind into the airshed
The levees on the edges of the Ash Storage Area were periodically raised to allow for a greater ash holding capacity
During the operational period ash could enter the airshed during windy periods when the surface crust was damaged by heavy rain and after heavy machinery working on the ash dam has broken up the surface A map of the Ash Storage Area in shown in Figure 3 with flood coffer dams numbered and the direction of floodwater flow during surface flooding events indicated
Following NPS closure a number of measures were taken to control dust lift-off from the Ash Storage Area including the installation of new pipework to ensure continued seawater supply the construction of new coffer dams and the use of a temporary pump and pipework from Playford Periodic filling of the coffer dams and breaching enabled seawater to flow out and re-establish a crust However this continued operation was progressively causing erosion to the surface of the dam and the banks of the coffer dams and certain areas such as the central discharge point were unable to be reached by flooding In August 2016 a 15Ha area adjacent the original slurry discharge point was sealed with dust suppressant applied by cropduster This treatment was successful in containing dust from this area Continued flooding to the east and west of this location caused
Printed copies are uncontrolled Please ensure you are referring to the most current version 5
AindersPower
further damage and in October 2016 it was decided to change strategy from seawater flooding to sealing the entire dam surface with dust suppressant
These measures were intended to achieve short-term dust control particularly during summer 201617 while the long-term rehabilitation plans were being implemented These actions are referenced in Implementation and Control Action 2
In late December 2016 a major storm event impacted the dust suppressant seal causing areas of ash to be re-exposed On the 1st and 2nd January 2017 a dust event occurred whereby windblown dust was generated from the surface of the dam
Reapplication of the dust suppressant was conducted throughout January 2017 with a seal re-established by 25th January 2017 Commencement of earthworks also occurred during this period with the opening of an adjacent borrow pit and the commencement of construction of topsoil lsquofingersrsquo across the surface of the dam
At the time of updating the Dust Management Plan approximately 180ha of the Ash Storage Area had been covered with soil with the completion of five east-west access fingers Seeding had occurred over 140ha of the site
Coal Conveyor System
The coal conveyor system begins at the train unloading facility at NPS Coal was directed either to the coal storage bins or the coal stockpile by the conveyor system Coal from the storage bins was conveyed to PPS or NPS as required The coal conveyors are enclosed and the transfer points are inside a number of enclosed towers to reduce dust emissions
Fugitive coal dust was formerly washed down daily from the inside of the conveyor enclosures and the transfer towers The effluent was captured in sumps underneath the towers where the coal dust sediment was collected and returned to the stockpile area
Following closure clean-out of the conveyor lines and transfer towers occurred with all accessible coal washed to the ground where it could be contained and disposed These control actions are described in the APS Environmental Closure and Post-Closure Plan
Short term coal dust management measures are being applied during the demolition and rehabilitation phase This is referenced in Implementation and Control Action 3 amp 5
Coal Storage Bins
There are three Coal Storage Bins at NPS with a capacity of 18000 tonnes located to the west of the stockpile These are enclosed with a tripper on top conveyors and ploughs on the bottom conveyors Both of these are enclosed to reduce dust emissions
Coal bins at Playford were decommissioned and emptied in 2012
Following closure clean-out of the NPS bins occurred with all accessible coal washed to the ground where it could be contained and disposed These control actions are described in the APS Environmental Closure and Post-Closure Plan
Short term coal dust management measures are being applied during demolition of the bins This is referenced in Implementation and Control Actions 3 amp 5
Printed copies are uncontrolled Please ensure you are referring to the most current version 6
AindersPower
Roadways
There are a number of roadways sealed and unsealed around the site where dust settles and aggregates Road vehicle speeds are kept to a 20 kmh limit on most roads with two roads on site having a 40kmh limit for both safety and environmental considerations
The Ash Storage Area is surrounded by a levee system allowing vehicle access on top Windblown ash can settle on the roadways and this is periodically sprayed with dust suppression chemical and wet down with a water truck to reduce dust lift off
Dust control measures used pre-closure are continuing during the closure process This is referenced in Implementation and Control Action 4
Demolition Activities
Flinders Power (FP) and McMahon Services Australia formed an Project Alliance Agreement in May 2016 to facilitate the successful delivery of the site demolition program
The Alliance is a unified team to jointly manage the planning asset salvage and decommissioning works of the Augusta Power Stations The successful delivery of this project relies on the combined efforts of both FP and McMahon Services and the pooling of knowledge experience and expertise under the Alliance is the best contractual means to deliver the complex closure program The Alliance will see the partnership of both the Owner Party (FP) and Non-Owner Party (McMahon Services) to create a single team working unanimously collaboratively and cooperatively and acting in good faith to make best-for-project decisions
FP have invaluable knowledge and expertise about the Augusta Power Stations This knowledge is integral to ensure the safety of all personnel and management of environmental risks McMahon Services has over 25 years of decommissioning experience conducting high risk demolition and hazardous materials removal works at sites across Australia McMahon Services are a licenced entity by the SA EPA and are accredited to ISO 14001
Each module of works within the delivery phase is defined by a unique scope of work with Flinders reserving the right to let independent work scopes
Potential dust generating activates identified in the Project Risk Assessment Register include
bull Stack felling
bull Bin felling
bull General demolition activities
bull General civil works and
bull General site traffic
Dust management measures are being incorporated into the demolition control plans as referenced in the APS Environmental Closure and Post Closure Plan and Alliance Demolition Plans
Printed copies are uncontrolled Please ensure you are referring to the most current version 7
AindersPower
Utilities Available During Demolition
The majority of electricity used by major plant at the station was formerly provided by onsite generation Following closure there remain a number of small electricity supplies to the site mainly into offices and workshops though the main infrastructure utilised for dust control is provided by large standalone portable generators A number of water pumps are used around the Ash Storage Area for seepage water and a portable diesel water pump can be deployed as required
Seawater has been previously pumped from the cooling water inlet screens of NPS to the Ash Storage Area via an agreement with a third party to access power supplies Additional pipework and outlets were installed on the southern side of the Ash Storage Area for targeted seawater flooding Additional seawater was also obtained from the Playford Station seawater inlet using a portable diesel water pump for flooding the south-western corner of the Ash Storage Area
Mains water at high pressure off the SA Water mains pipeline is also available on site and is utilised for stockpile revegetation
Printed copies are uncontrolled Please ensure you are referring to the most current version 8
I
bull ~ - __ i ----
middot1 ------ --bull- __ _
~ --I
i 1 i
~--~ V i ~ I
yen 1
I i I l
7 - -+ i i
middot1
i
I l i jL-________________ _ 0 )OOlaquor0ffi o~middot-=------ Naa-est RB51denDaJ Receplen
FIGURE 1 0 us1 Monilltribulli Loootion
AindersPower
Figure 1 Location of the Port Augusta and Stirling North Communities in relation to the APS Site and Coal Stockpile (after Aurecon 2010)
Printed copies are uncontrolled Please ensure you are referring to the most current version 9
---
WW SPEED (mis)
bull gtbullIII
- 8 8 11 1 5 7 - U
D 3Cbull 67
D 21 - 3C
D o5bull 21
AindersPower
Wind shadow directions Port Augusta Lgt Stirling North y7
Figure 2 Seasonal Wind Profile
Printed copies are uncontrolled Please ensure you are referring to the most current version 10
~IRU LAKl
oms
RL
(
AindersPower
sJ RAHPn
-~
1 RAMP13
Figure 3 Ash Storage Area map showing numbered flood coffer dams and direction of floodwater flow during surface flooding events
Printed copies are uncontrolled Please ensure you are referring to the most current version 11
Fp RindtrsPower
4 Supporting Documentation
The following document map outlines the role of the Dust Management Plan in meeting compliance obligations
Governing Legislation
EPA Authorisations Plans Appendices amp Supporting Documents
Environmental Protection Act 1993
EPA Licence 13006
Condition 11 Dust Prevention
Condition 22 Complaints Register
Condition 23 Develop and Implement Closure and Post-Closure Plan
APS Dust Management Plan (this document)
FPP Incident Management System
Environmental Closure and Post Closure Plan ndash Augusta Power Stations (Rev10 25 May 2018)
Appendix A Ash Dam Interim Sealing ndash Proposal 7th November 2016
Appendix B Ash Dam Interim Sealing ndash Risk Assessment 2nd
January 2017
Appendix C Complaint Handling Procedure
Appendix D Fugitive Dust Trigger Action Response Plan (Rev6 3rd
January 2018)
Appendix E Ash Storage Area ndash Extreme Weather Monitoring amp Response Plan (3 March 2017)
App A ndash Detailed Risk Assessments
App B ndash NPS Make Safe Manual
App C ndash PPS Closure Manual
App D ndash Closure amp Care Project Plan
App E ndash Chemical amp Oil Management Plan AppE1 ndash Chemical Manifest amp Removal Scope
App F ndash Demolition Alliance Supporting Plans
App G - APS Dust Management Plan (this document)
Printed copies are uncontrolled Please ensure you are referring to the most current version 12
Fp RindtrsPower
App H ndash Project Risk Assessment Register
Condition 26 Generic Contingency Plan Augusta Power
Station Emergency Response Plan
Condition 27 Pollution Control Refer Ellipse Equipment Register Maintenance
Management System
Environmental Compliance Agreement (2000)
Section 1 Definitions Flinders Power and Interpretations APS Ash Storage
Area End of Life Plan Draft Cost Estimate (14th
February 2000)
Printed copies are uncontrolled Please ensure you are referring to the most current version 13
Fp RindtrsPower
5 Environmental Conditions
The Augusta Power Stations operate according to the Environment Protection Act 1993 (SA)
The EP Act 1993 states the principle of a ldquogeneral environmental dutyrdquo
Part 4mdashGeneral environmental duty 25mdashGeneral environmental duty (1) A person must not undertake an activity that pollutes or might pollute the environment unless the person takes all reasonable and practicable measures to prevent or minimise any resulting environmental harm
The operation of the coal handling and storage system is an authorised activity under an Environmental Authorisation (Licence) under Part 6 of the EP Act provided by the EPA
EPA Notification of Process Changes
According to the requirements of the Environment Protection Act 1993 and Licence Condition 42 the EPA must be notified when there is a proposed change to operating conditions that
bull May increase emissions or alter the nature of pollutants or waste or
bull May increase the risk of environmental harm or
bull Would relocate the point of discharge of pollution or waste
Further in accordance with section 83 of the Act the EPA must be notified when serious or material environmental harm is caused or threatened
FP commits to ensuring compliance with these obligations
Licence Conditions
The Northern and Playford EPA licence (13006) states specifically the activities for which APS undertakes
Licensed Activities
The Licensee(s)
-Flinders Power Holdings GmbH Flinders Labuan (No 1) Ltd Flinders Labuan (No 2) Ltd is (are) authorised to undertake the following activities of environmental significance under Schedule 1 Part A of the Environment Protection Act 1993 (the Act) subject to the conditions of licence set out in the attached pages
1(5)(a) Petroleum storage 2(1) Abrasive blasting 7(3)(C) Crushing grinding or milling works (rock ores or minerals) 7(5) Coal Handling amp storage 8(2)(a) Fuel burning coal or wood
Printed copies are uncontrolled Please ensure you are referring to the most current version 14
Fp RindtrsPower
8(7) Discharges to marine or inland waters (heat or antibiotic or chemical water treatments)
8(6a)(a) Desalination plant that discharges wastewater to the marine environment
Licence 13006 (issued 01 January 2015 and as amended 30 August 2017) contains the following condition relating to dust on site
S-9 Dust Prevention
The licensee must
bull Take all reasonable and practicable measures to prevent dust leaving the Premises bull Develop a Dust Management Plan to the satisfaction of the EPA and bull Implement the Dust Management Plan approved in writing by the EPA (or any revised
plan approved in writing by the EPA)
Accordingly Augusta Power Stations operates the former coal stockpile coal handling plant and the Ash Storage Area in such a manner to reduce its effects on the environment including the roads to and from the stockpile and the levees on the ash storage area
The following licence conditions relate to ambient air monitoring
Printed copies are uncontrolled Please ensure you are referring to the most current version 15
1 AMBIENT A IR MONITORING (U - 5741
Tlhe Licensee must
31 1 install and operate a continuous meteorological monitoring station al a location within lhe Premises appmved in writing by the EPA
3 1 2 oontinuousily monitor ambient PM1Cl concentrations using an Ecotech Eshysampler Particulate Monitor (or other comparable equipment) at llocatio111s within themiddot Premises approved in writing by the EPA
3 1 3 oontinuousily monitor ambient PM1Cl concentrations using an Ecotech Met One E-Bam Particulate Monitor (or other comparable equipment) at such locations as may be d esignated in writing by the EPA including locations at Lea Memoria l Oval in Port Augusta and at Stirling North
a provide rea l-lttime public access to the monitoring data collected pursuant to ihis clause
b rnotify the EPA in writing of a ny resul ts of monitoring underlaken pursuant to ihis clause w hich indicatemiddot an exceedance of a mbient PM10 concentrations of 50 m icrograms per cubic metre for a 24 hour average period Notification to the EPA must occur within 24 hours of the exceedanoe
c incilude in any notification given pursuant to this clause the actions taken in response to the exceedance in order to mitigatemiddot impacts of PM10 from the Premises on the community
3 1 4 assess and interpret the results of monitoring undertaken pursuanl to th is condit ion to inform the impl ementation of dust mitigation and mana gemenl measures lbased on site-specific trigger valu es set out in the approved Dust Management Plan dated 03 Mardh 2017 or any oobsequent version approved in writing by the EPA
3 1 5 submit to the EPA on a monthly basis a summary of monitoring results for each 24 hour average peniod of ambient PM10 co ncentrations
31 6 upon req uesl of an Authorised Officer provide results of any moniloring undertaken pursuant to ihis condition
NOTES
Condition appticalile to Flinders Power Licence 13006
Fp RindtrsPower
Printed copies are uncontrolled Please ensure you are referring to the most current version 16
2 AMBIENT MONITORING A ND REPORTING (U - 6601
The licensee must
321 continuously monilor ambient sulphur dioxide and ambient nilrogen di oxide at a location (or locations) within the Port Augusta township approved in writing by the EPA
322 monitor ambient particulate concentrations (TSP and PM10) using a highshyvolume ai r sampler to determine the 24 hour average at freque111cies and location (or locations) within the Port Augusta or Stirling North township approved in writing by the EPA
323 undertake an investigatio11 to determine the source of any exceede11ce(s ) a11d provide to the EPA the outcomes of lhe i11vestigation if followi11g levels are exceeded at any monitor ing location(s)
a Sulphur dioxide 571 micrograms per cubic metre (detenmi11ed as a one hour average)
b Nitroge11 Dioxide 246 micrograms per cubic metre (determined as a 011e 11our average) a11d
c Ambient particulate oonce11trations (PM10) SCI micrograms per cubic metre (detem1ined as a 24 hour average) and
324 nolify the EPA wilhin seven days of a11y su~ hur dioxide exceedence as measured at the monitoring location(s) referred to in sub-condition 1 and
325 notify themiddot EPA in writing of any results of monitoring undertaken pursua11t to sub-condition 2 which indicate an exceedance of ambient PM10 con centratior1s of SCI micrograms per cubic metre for a 24 hour average period Nolificatio11 to the EPA musl occur within 24 hours of the exceedance
a include in a11y notification given pursuant to this clause the actions taken in response to the exceedancemiddot in order to mitigate impacts of PM10 trom the Premises on the community
326 submil to the EPA on a mo11thly basis a summary of monitoring results for ambient particulate concentrations (TSP and PM10) ambient 11itrogen dioxidemiddot and ambient sulphur dioxide
Fp RindtrsPower
Ambient Dust Monitoring ndash TSP amp PM10
To monitor the ambient air dust levels across the community there are a number of High Volume Air Samplers (HVAS) at strategic locations in Port Augusta and Stirling North There are two types of HVAS a total suspended particulate (TSP) type which samples all of the dust in the air and another for particulate matter 10 microns and smaller in diameter (PM10)
The following sets out the agreed ambient monitoring arrangements (per EPA authorisation of 30 August 2017)
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( middot~
Stir ling North Real-Time PMlO Community Monitor Contingency PMlO High-Volume Monitor
Fp RindtrsPower
Sign in
Operational Monitors
- Three Ecotech E-Sampler Particulate (PM10) Monitors (lsquoProtinus 1000rsquo) have been installed as follows
o The South Operational Monitor located on the southern Ash Storage Area boundary
o The East Operational Monitor located on the eastern Ash Storage Area boundary
o The North Operational Monitor located on the northern boundary of the Polishing Pond at the closest point of site to Port Augusta residences
- The units record real-time data at 5-minute intervals Data is available via the Ecotech online reporting system Eagle The SA EPA has been provided access to the Eagle system
- The system provides real-time trigger alerts to Flinders Power staff by email and SMS Alarm thresholds are defined in the Flinders Power Fugitive Dust Trigger Action and Response Plan
- A summary of data namely the monitoring results for each 24-hour average period of ambient PM10 concentrations will be provided to the EPA on a monthly basis
Real-Time PM10 Community Monitors
- Two Exactus Beta Attenuation Monitors (BAM) have been installed within the nearest identified sensitive human health receptors to the site one each at
o Lea Memorial Oval representing the closest community receptor in the dominant downstream wind direction from the site and
o Stirling North Primary School representing the background concentrations of regional dust conditions It also acts as a secondary community monitor for fugitive dust emissions from the site during south-westerly wind conditions
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Fp RindtrsPower
- Data is collected on a 10-minute average basis Data is available via the online reporting system Eagle The SA EPA has been provided access to the Eagle system
- The system provides real-time trigger alerts to Flinders Power staff by email and SMS Alarm thresholds are defined in the Flinders Power Fugitive Dust Trigger Action and Response Plan
- A summary of data namely the monitoring results for each 24-hour average period of ambient PM10 concentrations will be provided to the EPA on a monthly basis
- The data collected from these monitors will be utilised for community monitoring against the 24-hour ambient particulate concentrations limit (PM10 concentration of 50ugm3) Data from these monitoring stations is made publicly available in real-time at wwwflinderspowercomau
- A trigger alarm (via email) has been set whereby project staff will be alerted by email if there is an exceedance of 50 micrograms per cubic metre of air over a 24-hour average period Flinders will notify the EPA within 24hours should this occur along with an interpretation of the conditions of the day and details of any remedial actions were undertaken at the site
Daily Total Suspended Particulate (TSP) at Lea Memorial Oval
- A high-volume air sampler is located at Lea Memorial Oval and will be run each day to collect TSP data The filter paper will be kept on record for further analysis if required
- Three high-volume air sampler units will be located at the site and will be set to run on timer over weekends and public holiday periods
- The data is indicative of total dust in the vicinity of the monitor
- A summary of data namely the monitoring results for each 24 hour average period of ambient TSP concentrations will be provided to the EPA on a monthly basis
Contingency PM10 and TSP Monitoring Sites
- A contingency PM10 high-volume sampler will be retained at
o The Port Augusta Pigeon Club
o The Port Augusta Tennis Association
o Lea Memorial Oval
o Stirling North Primary School
- A contingency TSP high-volume sampler will be retained at
o Port Augusta Hospital
- These samplers will be operated
- On days of high potential dust (eg days when charge felling of infrastructure occurs)
- If dust levels arising from site increase warranting an increase in the monitoring frequency
- During times of an outage of the real-time monitors at Lea Memorial and Stirling North
- Periodically for calibration purposes
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Fp RindtrsPower
Speciation
One of the challenges in undertaking ambient monitoring for dust within the community is differentiating coal ash and soil particles derived from operational activities as distinct from natural regional dust A key differentiator is wind direction and strength The wind direction and strength for the day of measurement is captured within data reports and used to assist determine whether particles may have derived from the APS site Another method used is colour ndash a filter paper of a red colour may indicate a high contribution of natural regional dust and is particularly noticeable during regional dust storms A filter paper of a grey colour can indicate a contribution from the ash dam however the natural urban dust and wood smoke from domestic heaters tends to also be grey in colour A very dark greyblack tinge can indicate the contribution from coal dust The township of Port Augusta and surrounding communities is located in a desert climate and is subject to frequent dust storms from the arid interior The analysis of historical high ambient dust results against weather events shows a strong correlation with regional conditions
Another key data input is local knowledge On certain days there may be local activities eg development of the Central Oval or mowing at the Lea Memorial Oval) that may be a key contributor to local dust These conditions are noted on the monitoring results database
Along with ambient air dust sampling dust collected from various locations around the site including along the railway and around the Ash Storage Area and town have been sampled to determine the coal and ash content
Other methods to identify the sources of dust collected at monitoring stations are continually investigated
The results of speciation work undertaken by the EPA or Flinders Power will be taken into account and the plan may be updated to reflect any requirements arising from these
In late 2016early 2017 the EPA conducted dust sampling and analysis at a monitoring station located adjacent to the Ash Dam and from a station within the Port Augusta community The results of the sampling including assessment from SA Health are available on httpwwwepasagovaubusiness_and_industryindustry-updatesflinders-power-port-augusta The results of the analysis indicated that whilst the toxicity of the ash particulate is considered low the particle size warrants proactive management of dust from the ash dam
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Fp RindtrsPower
6 Dust Management Plan (DMP)
Plan Stakeholders - Roles and Responsibilities
Positions in Flinders Power have been identified and assessed as having direct influence over parts of the process involved with managing dust on the APS site The responsibilities of such positions are described here to ensure clear and progressive lines of accountability and communication for the purpose of implementing this Plan
Facility Manager APS
bull Approve and support the DMP Ensure ongoing compliance with the DMP bull Authorise the resources required to implement this plan bull Custodian of the lsquoAsh Storage Area Contingency Plan ndash Extreme Weather Monitoring amp
Response Planrsquo ndash Appendix E bull Consult with the Environmental Coordinator to determine appropriate environmental
management strategies and contingency measures required by the DMP bull Install and maintain dust management infrastructure including dust suppression sprays and
cannons bull Report actual and potential environmental incidents bull Ensure sufficient resources (personnel materials and equipment) are available to respond to
high dust events bull Consult with the Environmental Coordinator with respect to the management of contractors
for decommissioning demolition and rehabilitation activities that may affect the integrity and effectiveness of the DMP
bull Maintain dust management infrastructure to ensure ongoing effectiveness and reliability bull Liaise with environmental and allied Regulators bull Notification to Regulators of any adverse dust events bull Notification to Regulators of any material changes to dust management controls and bull Consult and liaise with community stakeholders including proactive notification of
actualpotential dust events
Program Director ndash Flinders Sites
bull DMP document owner bull Review and approve the DMP bull Provide advice andor assistance to the Facility Manager APS to ensure the DMP is
appropriately implemented in the workplace bull Liaise with environmental and allied Regulators bull Ensure the FP website has current and accurate environmental monitoring data and bull Consult and liaise with community stakeholders
Environmental Coordinator
bull Manage stockpile and Ash Storage Area operations in accordance with the provisions of this plan in order to minimise the creation of fugitive dust
bull Provide advice and or assistance to the Facility Manager APS to ensure the DMP is appropriately delivered and followed in the workplace
bull Coordinate sampling of PM10 and TSP high volume samplers bull Ensure dust monitoring equipment is functional and accurate
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Fp RindtrsPower
bull Collation and reporting of environmental monitoring data bull Ensure dust and weather monitoring equipment is functional and accurate bull Collate and deliver daily environmental data including 5-day weather forecast dust risk
rating BOM dust alerts BOM severe weather alerts and previous period environmental monitoring data
bull Ensure proactive and reactive notification mechanisms are in place bull Maintain interpret and communicate dust monitoring results bull Investigate DMP non-conformances or dust quality exceedences bull Determine appropriate management strategies and implement contingency measures in
consultation with the relevant managersupervisor bull Complete all required Internal and External reports required by the DMP bull Ensure the Incident Management System contains the details of incidents and complaints
related to the DMP bull Service and maintain ambient monitoring equipment in accordance with OEM instruction and
the Environmental Monitoring Plan bull Publishing and provision of real-time and monthly data reporting to the EPA and community
and
FP Project Management Team
bull Manage stockpile and Ash Storage Area operations in accordance with the provisions of this plan in order to minimise the creation of fugitive dust
Land Management Team
bull Maintain the Ash Storage Area to reduce dust generation
bull Inspect the Ash Storage Area levees and batters along with site roads and perform dust suppression actions as required
bull Wash down coal dust and spillages from underneath conveyor structures and ash from under the boiler area
bull Maintain site vegetation and
bull Perform any other dust mitigation actions around site as necessary
Alliance Team members (FP McMahons Services and subcontractors)
bull Implement Alliance Plans including Environmental Management Plan bull Ensure appropriate dust management controls are applied for specific demolition activities
eg charge felling bull Undertake operation activities in accordance with relevant Flinders Power policies
procedures management protocols plans statutory licence and contract requirements bull Implement appropriate environmental management measures and bull Report actual and potential environmental incidents to the Facility Manager via their
supervisor
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Fp RindtrsPower
Implementation and Control Actions
The Implementation and Control Actions in the DMP are based on the following specific items
bull Design and use of plant and equipment so as to control and minimise dust bull Development and application of work procedures which reduce the potential for dust bull Use of dust suppression techniques on the Ash Storage Area coal storage and handling
areas and bull Development and implementation of auxiliary techniques to monitor weather conditions
affecting site in particular the Ash Storage Area in order to implement the Trigger Action Response Plan (TARP)
The following Tables (1 to 5) document the potential coal air qualitydust impacts with associated control plans
This has been developed by utilising the 2014 Aspects and Impacts Register as the basis to identify the locations or activities with the highest risk of dust generation on the site and updating these to reflect the requirements during closure activities
The locationsactivities have been ranked according to the highest residual risk for the environmental aspects contained in each
Table 5 lsquoAspects and Control Action 5 Demolition Activitiesrsquo specifically references the Alliance Project Risk Register which relates to dust control for demolition activities
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Rindmlower
Table 1 Aspect and Control Action 1 Coal Stockpile Operations
The following action plan relates to the revegetation of the former stockpile area
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
FPP Project
Management Team
Civil works on
stockpile pad
Preparation for
revegetation
Coal dust amp
wind blown
soil
Air quality EPP (Air Quality) Major Likely Extreme-8 Dust Management Plan Access
to area during low wind speeds
Water truck
Irrigation water
sprinkler system
Minor Possible Mod-5 wind
directionspeed
ambient monitoring
ad-hoc dust
monitoring
Operator
training
Closure period
23 Environmental Services Coal stockpile
management
Coal dust Air quality EPP (Air Quality) Major Likely Extreme-8 Dust Management Plan
Sprays Water truck
Project Group Minor Unlikely Low-4 wind
speeddirection
ambient monitoring
Operator
awareness
General
conditions
Inherent Risk Operational Controls
Augusta Power Stations Environmental Aspects and Impacts Register
General Control Matrix
Area Potential impact Potential contaminants Rehabilitation Controls Responsible personnel
Coal Stockpile and Tower Pad Heavy machinery generating dust while operating on or near the stockpile where coal is present during revegetation activities and prior to vegetation becoming established
Air qualitydust movement off site due to wind speed and direction
Coal dust soil and surface dust Capping and revegetation of the former coal stockpile and tower pad to prevent future potential fugitive dust emissions It is proposed to carry on with site civil works to cap the coal stockpile and tower pad areas and follow behind with seeding with native seeds at a rate of 15kg per Ha consistent with the Ash Storage area The coal stockpile and tower pad area has the advantage of the ability to irrigate which is expected to facilitate germination and growth of the native vegetation
FPP Project Management Team
Surface ripping during low winds (lt35kmhr) Cease work when wind speeds increase (gt35kmhr) Use of water truck to wet surface Allowing surface to harden Installation of irrigation system Revegetation of pad surface Daily monitoring by Project Manager and Land Management Team Additional revegetation as required
FPP Project Management Team
Use of dust suppression chemicals on open areas as required
Environmental Coordinator
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Rindmlower
Daily weather reports for wind speed amp direction forecasting and provide advice to team
Environmental Coordinator
Manually operate the sprinkler systems on forecasted strong wind conditions prior to forecasted conditions Install a remote activation system to allow operation in unforeseen or non-forecasted events quickly
Environmental CoordinatorFacility Manager
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Rindmlower
Augusta Power St ations Environmental Aspects and Impacts Register Ref No Responsible Activity Location Enviro Aspect Enviro Impact Legal amp other lnheren t Risk Operat ional Controls Residual Risk Monito ring Training Note
Oep tBronchSection requirements
(cause) (effect) Consequence Ukelihood Roting Primary Support Consequence Likelihood Rating
5 Environmental Services Ash storage dam Oust (Ash) Air quality EPP (Air Qua I ity) M ajor Almost Edreme-9 Oust Management Plan TARP APS Ash St orage Major Unlikely High-6 daily in spections
management emissions certain dust suppr ession chemical Dam Insp ection ambi ent monitoring
applicat ion t o surface and Check Ii st JSP234 Ash 3 mont hly
levees rea l -t ime PM10 disposal pipe laying inspections
mentoring at ash dam and JSP235 V ehicle
w it hi n com munity t ext alerts operation in Ash
BOM moni t oring of weather Pond area
prediction s
212 Environmental Services Ash sto rage dam Oust Air quality EPP (Air Qua I ity) M ajor Almost Extreme-9 Dust Managem ent Plan TARP APS Ash St orage Major Unlikely High-6 daily in spections
management (Red sand) certain dust suppr ession chemical Dam Inspection ambient monitoring
emissions appl ication t o surface and Checklist JSP235 3 mont hly
levees t rained vehicle Vehicle operat ion in inspections
operators real -t i me PM10 Ash Po nd area
mentoring at ash dam and
wit hin com munity t ext alerts
BOM moni t oring of weather
predictions
Table 2 Aspects and Control Action 2 Ash Storage Area Management
The following action plan relates to the management of the Ash Storage Area (ASA)
General Control Matrix
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Ash Storage Area Generation of dust from the main surface of the Ash Storage Area including borrow pits on the south side
Surface dust from main pipework outfall area
Generation of ash dust from the inside of the western levee areas
Generation of ash dust from the inside of the Eastern levee areas
Southern levee surfaces and batters including areas where wind-blown ash has settled
Ash dust particles Use of dust suppression treatment on the surface of the ASA ndash Refer Appendix A and B
Trigger Action Response Plan (Refer to section 7)
Use of water carts and additional dust suppression on banks and roadways as required
Daily visual inspection and remedial works as required
Facility Manager APS Environmental Coordinator McMahon Services
Facility Manager
Land Management Team
Environmental Coordinator
Ash Storage Area ndash Implementation of long-term rehabilitation plan
Generation of red dust from the borrow pit during excavation and haulage
Generation of surface red dust from haul roads tofrom the borrow pit and the Ash Storage Area
Soil lsquored dustrsquo particles Monitoring of dust generation and use of dust suppression measures during the implementation of the long-term rehabilitation plan for the Ash Storage Area Refer to Appendix D Fugitive Dust Trigger Action Response Plan (Rev 4 29th May 2017)
Facility Manager APS
McMahon Services
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Rindmlower
Generation of red dust from topsoil fingers and ash dam surface after spreading
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Rindmlower
Table 3 Aspects and Control Action 3 Coal Conveyor System and General Site
The following action plan relates to the management of dust around the conveyor system and general site
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
62 Flinders Project
Services
Coal bin storage Coal dust Air quality EPP (Air Quality) Moderate Possible High-6 Enclosure wash down of built
up dust
Maintenance
routines
Moderate Rare Mod-4 ambient monitoring
maintenance
records
Augusta Power Stations Environmental Aspects and Impacts Register Inherent Risk Operational Controls
General Control Matrix
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Conveyors Residual coal dust generation from conveyors and bins around the station
Coal dust Enclosed structures Dust wash down (completed during Make Safe period) Defect hazard reporting Routine site inspection
Environmental Coordinator
Open areas Generation of dust from surfaces such as underneath conveyors and towers where coal has spilled or dust settled
Coal dust and surface dust Wash down with water hose when required
Land Management Coordinator
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Rindmlower
Demolition Control Actions
Table 4 Aspects and Control Action 4 Site Roads (General Conditions)
The following action plan relates to the management of dust roadways around site
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
21 Environmental Services Road traffic Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Moderate Possible High-6 Speed limits on-site
Routine road washing
Minor Unlikely Low-4 Site inspections
Augusta Power Stations Environmental Aspects and Impacts Register Inherent Risk Operational Controls
General Control Matrix
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Roads Generation of dust from road surfaces Coal dust and surface dust Water spray with water truck Street sweeper (hired as required)
McMahons Facility Manager APS
Printed copies are uncontrolled Please ensure you are referring to the most current version 29
set Issue or lmpr-ovement Opportunity
11 ~~ ca131gte cf ~bUcture Oim ~ e 10 amp-ErceiJve re~i2 w eitber conditkln - wlnI erivttinmenI ~J du1
RTrrc of~ttulnJ lncre ~ ~awl of _palttc ri lziiczbulltcn
btEen e-fl)C~lnI erth raunai_ ~s O swonm b ene itrJ [PlJrl rrto-erem m itiin aleelil on fe O=flier3lfnD ch3t COJll)any brffldF ~-
Inherent Risk Rating
llkeoll100ltI
2 Ml lOlt C ~ lY
RaiJno amp Pr1011ty
current ~ roaoh (Exktlng ContlOJGJ
W alH ih31 be utlJetl tor ttte p~e af dli~t 1~~b11 ltIUITQ demal tlbII iC1Mt Wta -r G ~ ~a~ middotbullbullth k lhae upPfe~rlg du1 d-rQ worts~ w ~ ~ng IL 3ter3 IMiCn ~Ucn XWrty
COfflffleflCli W31er mNKlflii lufft lh1D 13Qe
exayatcn [FC1 =so) bull~ )kg durtng ClemaaJOlii a tlYfty P~tm cwem enl ~ red wJle~ pa10 eci Jlfe-er elCe~N e OBl=r1tion ofd-11-t tf lNllittd w zatetmiddot airt rutJ~etl ID 1tQgtff1iii e1l gniund
~ 1 iRedu-ced lllcfilrty ctmng high WlJd~ Ou~ mcdtortlvl ~tQ 1slu-S i1od ete-cronlc monlmn
Rlsidu11 Risk Rating
Rallng amp Pr1ltlrlly
Modun l i
Proposld Mitigation o f Risk Exposure lmp-ovem1mt Aciions
Rkk Reduotlon Trbull abnbull nil o r Aa ef lmp(OWbullmefll
ov-edAoifon
Aotton owner
Rindmlower
T arglt Risk Rating
LllellhOOd
Table 5 Aspects and Control Action 5 Demolition Activities
The following action plan relates to the management of dust during specific demolition activities
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
McMahons Road traffic during
demolition activities
removal of material
off site
Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Moderate Possible High-6 Pre-task JSEA Site vehicle
speed limits
Routine road washing with
water truck
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Minor Unlikely Low-4 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons General Demolition
Activities
Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
Water areas with water hoses
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons General Civil Works Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
Water areas with water hoses
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons Stack Felling Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
Industrial mist fans
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons Bin Felling Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
Inherent Risk Operational Controls
Augusta Power Stations - Demolition Environmental Aspects and Impacts
Alliance Project Risk Assessment Register ndash Dust from demolition activities ndash extract
Printed copies are uncontrolled Please ensure you are referring to the most current version 30
Rindmlower
General Control Matrix (for Table 5 Aspects and Control Action 5 Demolition Activities)
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Stack Felling Generation of dust Coal dust ash and surface dust Vehicle speed limits Water shall be utilised for the purpose
McMahons Facility Manager APS
of dust suppression during demolition
Coal Bin Felling Generation of dust Coal dust ash and surface dust activity via air misters spotters with McMahons milk hoses suppressing dust during Facility Manager APS works as well as pre-wetting materials
General demolition activities Generation of dust Coal dust ash and surface dust before demolition activity commences McMahons water cannons built into large Facility Manager APS
General civil works Generation of dust Coal dust ash and surface dust
excavators spraying during demolition activity Plant movement minimised where
McMahons Facility Manager APS
Site traffic for demolition material removal
Generation of dust Coal dust ash and surface dust
possible to prevent excessive generation of dust If required water cart utilised to suppress seal ground area Reduced activity during high winds Dust monitoring using visual and electronic monitors
McMahons Facility Manager APS
Community and stakeholder engagement and information sharing of demolition events with potential for significant dust generation which may have an adverse effect on the community
Reclaim transport and use of ash from Generation of dust Ash dust Refer to task-specific JSEA developed McMahons the Ash Storage Area for demolition for the activity (Appendix F) Facility Manager APS activities (eg backfill of voids)
Reclaim transport and use of soil from Generation of dust Soil (red) dust McMahons the on-site borrow pit for demolition Facility Manager APS activities (eg backfill of voids topdressing working base for excavator)
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flinderslower
7 Ash Storage Area ndash Dust Management
The current approach for dust management on the Ash Storage Area (ASA) utilises regional weather predictions of wind speed and direction to inform activity planning and the implementation of dust management measures on the ASA
Historically infrequent events have occurred whereby rainfall on the ASA during the spring and summer months has caused the salt crust on the surface created by surface seawaterash slurry flooding to deteriorate and allow ash to become airborne in strong winds
Whole of ASA Dust Suppression Treatment
Conditions on the ASA since closure has shown that the normal dust suppression activities used (coffer dam building and surface flooding) have damaged the ASA surface allowing fine ash to be lifted from the surface A review of the dust suppression methods used on the ASA through August ndash October 2016 determined that the optimal method of dust suppression was to seal the whole of the ASA surface with a dust suppression treatment
An initial area of 15Ha in the middle of the ASA was sealed with dust suppression chemical in August 2016 which was applied by crop duster airplane The results of the sealing of this initial area were positive and after severe weather events during September and October 2016 causing large ash lift off events from the remainder of the ASA and dangerous conditions for machinery on the ASA levee banks it was decided to investigate the sealing of the whole of the main ASA
A risk assessment and proposal for the sealing of the ASA was developed in collaboration with the EPA and provided for review on the 21st October 2016 Approvals were provided and the project was completed on 22nd November 2016
Severe storm activity in the period 24-28th December 2016 impacted the dust suppressant seal which rapidly dried and led to a dust event on the 1st and 2nd January 2017
The use of a dust suppressant seal is an interim measure prior to the completion of the full rehabilitation program
Trigger Action Response Plan ndash Ash Storage Area
A Trigger Action Response Plan (TARP ndash refer Appendix D) has been developed incorporating the ldquostoplightrsquo performance monitoring tool and visual site inspections as the triggers The TARP will hold two key functions
- To monitor sealant condition and determine if further treatment is required to control ash dust generation from the Ash Storage Area and
- To monitor the generation of lsquored dustrsquo during the completion of the long term rehabilitation plan including soil trafficking emplacement and throughout the germination period of vegetation
A newly installed ambient dust monitoring system is also used to inform site staff of ldquoreal timerdquo airborne dust levels around the ASA and in two community monitoring sites These ldquoreal timerdquo levels
Printed copies are uncontrolled Please ensure you are referring to the most current version 32
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0
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17
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are used in conjunction with site visual observations to determine escalating trigger points within the TARP
The mitigation responses are drawn from the Aspect Control Actions appropriate for the identified triggers The site Incident Management System (IMS) is used as the action assignment and data recording tool
The TARP has been communicated to the appropriate site stakeholders to ensure appropriate actions are taken to mitigate dust from specific identified areasactivities on site
The Ash Storage Area has been identified as the key area for dust management and a three tiered process using wind forecasts has been developed with a daily weather forecast utilising a Red-Yellow-Green ldquostoplightrdquo type format Daily weather reports are reviewed for wind speeds forecasted to be over 35kmh in the proceeding days and a weather forecast chart is used to identify times of risk of generating dust
The chart below shows an example of the weather forecast prepared and communicated daily to site leaders
Figure 4 Example lsquostoplightrsquo TARP system for weather warning
The green band to show when potentially dust generating activities with heavy plant can take place A yellow band indicates when caution is required and a red band indicates times where it is likely that site activities may need to cease
The daily report is supplemented with the predicted weather conditions (sourced from weatherzonepro) for the next 6 day forecast period An example is provided in Figure 5 below
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Vlincl Speed (kph) kmh) vs Vf111cl Dir kmh) I Temperature (degC) vs Jgtreap Probab1l1tv () Last updated Tue 24 Jan 07 OD
AAAAAAAAAAA AAAAAAAAAA AAAAAAA gt-~A AA AA4AA ~~~AAA t-C DATE 24 )(Ill Tue TIME 0730
M ~~
VJn 1 c--ip(I 1_k(lhJ 1 ) 4 t 21 ~-5
WinDir A 351kmh v7
2_Jan ~ n
Figure 5 Example six-day predicted weather forecast
Further Flinders has access to the Bureau of Meteorology dust warning system which is checked daily and alerts issued with the daily environmental report An example dust warning is provided in Figure 6 below
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Local Time 1230 COST (dar l ) Base Da~middot 2017 02 01
Figure 6 Example BOM dust warning
Preparation for extreme weather events is documented in Appendix E Ash Storage Area ndash Extreme Weather Monitoring amp Response Plan
On high wind speed days the following example precautions will be undertaken where appropriate Full details are provided in the TARP (Appendix D)
bull Ensure safety of site staff and visitors
bull Monitor wind speeds using Bureau of Meteorology data
bull Cease work activities on the Ash Storage Area
bull Surface inspections to determine if ash is blowing off
bull Targeted action for high risk accessible areas and
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flinderslower
bull Notify stakeholders and the community if required (Port Augusta City Council community and SA EPA) in accordance with Section 5 of the APS Environmental Closure amp Post-Closure Plan
When a community complaint regarding dust is received by the company activities on the Ash Storage Area will be reviewed and ceased if deemed appropriate by the Flinders Power Facility Manager or delegate
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8 Former Coal Stockpile Areandash Dust Management
The NPS Coal Stockpile pad has been rehabilitated and revegetation of the surface is in progress
Whilst the vegetation is established the existing Coal Stockpile TARP will be followed as below
Flinders Power (FP) have made attempts to revegetate the existing former coal stockpile area in 2016 through to 2018 directly into coal however only relatively minor vegetation has established A site inspection conducted by Succession Ecology in August 2017 noted that revegetation over time will be successful however an alternate seed blend may expedite the process Additional seed was sown in September 2017 A lack of rainfall over the 201718 period has impaired germination
In order to expedite the timeframes associated with arid lands revegetation projects Flinders now propose to carry on with civil capping works currently being undertaken across the ash storage area to cap the approximate 15 Ha former coal stockpile and tower pad areas The existing irrigation infrastructure will be retained for future dust management and potentially for irrigation to initiate germination
The soil capping of this area is designed to mitigate fugitive coal dust emissions Additionally the borrow pit material will facilitate the revegetation of this area in order to establish a self-sustaining environment
Succession Ecology (SE) has inspected the area and is supportive of the capping
The soil capping will be seeded with a previously approved native seed (wet) mix which is salt tolerant as advised by SE due to the evident salinity levels in the area
Vegetation Monitoring will continue to occur
The irrigation will be mainly used for dust suppression but could be used for kicking off germination depending on what rains we receive and what success of germination we have from the rain The irrigation will remain operational in the case it may be required
FP has received endorsement of the approach from Kirsa Environmental
Timing for approval of capping of the former coal stockpile and tower pad area is critical as it is proposed to follow on from current site civil capping works into the proposed capping works associated with the former coal stockpile and tower pad areas
It is intended that the current fleet of civil plant will be utilised to complete the proposed capping scope of works
Trigger Action Response Plan ndashStockpile Revegetation
A (TARP) has been developed for revegetation work on the stockpile incorporating the ldquostoplightrsquo performance monitoring tool and visual site inspections as triggers
Stockpile revegetation has been identified as a key area for dust management and the stoplightrdquo Red-Yellow-Green weather forecast will also be used during activities on the stockpile pad To facilitate and expedite the revegetation of the former coal stockpile and tower pad areas it is proposed to cap the area using material from the existing borrow pit
The lsquostoplightrsquo format will use a Green band to show when potentially dust generating activities with heavy plant can take place according to the following weather conditions
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Any activities during a wind speed below 20kph (6 ms or 11 knots) from the SOUTH EAST to SOUTH WEST
A Yellow band will show the hours when potentially dust generating activities with heavy plant can take place according to the following
Any activities during a wind speed over 20kph (6 ms or 11 knots) from any wind direction other than from the SOUTH EAST to SOUTH WEST
A Red band will show the hours when potentially dust generating activities with heavy plant cannot take place
Any movement activities during a wind speed over 20kph (6 ms or 11 knots) from the SOUTH EAST to SOUTH WEST
Stockpile inactiveRevegetation Program
Proactive measures will be undertaken when strong wind conditions are forecasted by manually operating the former coal stockpile sprinkler system to dampen the area to prevent dust lift A remote operating system will be installed to provide a quick response to any non-forecasted or unforeseen weather events
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9 Dust Monitoring and Evaluation
Ongoing dust monitoring by either visual evaluation of ashcoalsoil dust generation on site or by interpretation of the results from the dust monitoring network will determine if dust mitigation measures are effective or additional measures are required
Groups responsible for inspections are described in the action tables and TARP Text and email alerts are automatically sent to a nominated group of responsible persons when dust wind speed and wind direction thresholds are exceeded These mechanisms are outlined in the TARP
The monitoring of real-time PM10 data from the boundary monitors of the Ash Storage Area is presented on a screen within the Flinders Power office on site and monitored by both Flinders Power and McMahon Services personnel A summary of data is provided in the daily environmental report
Access to real-time dust monitoring information for the Ash Storage Area and community monitoring stations is made available to the EPA A summary of real-time data for the community PM10 monitors is presented on the Flinders Power website and made openly available to the community
The monitoring of real-time PM10 data from Stirling North and Lea Memorial Oval is verified daily (M-F) by the Environmental Coordinator
The monitoring of ambient high-volume filter papers within the Port Augusta community is conducted daily by the site Environmental Coordinator
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10 Community and Stakeholder Engagement
Community and stakeholder engagement is detailed in the APS Closure and Post Closure Environmental Plan
A summary of these mechanisms are outlined below
Mechanism Target Group Posted on FP
website
Frequency Notes
Residents PACC MP Media EPA NRM Board
Special-interest groups
Weekly progress report
X X X No Weekly A summary of activities at the site including demolition and ash dam rehabilitation
Face-to-Face meetings site visits
X NA Monthly Monthly meetings with PACC CEO and Mayor when available
Annual environmental presentation
X Yes Annual Annual presentation to PACC ndash open public forum
Media release Infomercials
X X Yes Ad-hoc Strategic media release eg felling of PPS A station stack
Works Progress Fact Sheet
X X X X Yes Monthly Quarterly
A monthly progress update Letter drop
Focus topic fact sheet
X X X X X X X Yes Ad-hoc A brochure on a particular topic (eg ash dam Playford A building demolition) Letter drop
Flinders Power website
X X X X X X X Yes Regular updates
Information portal Links to FP YouTube account FP contact details
Flinders Power hotline amp email
X X X Yes NA All community complaints are logged
Special-interest presentations
X NA On request
Presentations or site visits on request (eg Rotary schools)
Community site visits
X NA On request
Actively invite community members
Community forum
X X Yes Monthly Group now established
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flinderslower
reference group
Community X Yes TBA May include site information tours days
SMS distribution list
X X X X X X X Yes Ad-hoc Rapid notification of dust incidents
Flinders power is also performing community sentiment monitoring using the following
- Daily media monitoring ndash print TV radio and online
- Complaints hotline amp email ndash central recording
- Facebook ndash linked with community forums
- FP personnel embedded within the community
- Feedback from SA Government Regulators
- Close relationships with PACC MPrsquos local media and community leaders
101 Complaint Management
Community complaints regarding nuisance coal dust and ash are to be dealt with according to the Complaint Handling Procedure contained in Appendix C
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flinderslower
References
Aurecon 2010 Alinta Northern Power Station Stockpile Dust Management Flinders Power Report ref 206865-001-01 9 September 2010
Environment Protection Act 1993 (SA)
EPA Licence 13006 (Northern and Playford Power Station)
EPA Licence 13011 (Leigh Creek to Port Augusta Railway Operations)
Flinders Power Environment amp Community Policy (June 2016)
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flinderslower
Appendices
Appendix A Ash Dam Interim Sealing ndash Proposal 7th November 2016
Appendix B Ash Dam Interim Sealing ndash Risk Assessment 2nd st January 2017
Appendix C Complaint Handling Procedure
Appendix D Fugitive Dust Trigger Action Response Plan (Rev 6 3rd January 2018)
Appendix E Ash Storage Area ndash Extreme Weather Monitoring amp Response Plan (Rev 0 3rd March 2017)
Appendix F JSEA for the excavation transport and use of soil and ash from the borrow pit or Ash Storage Area for demolition activities
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flinderslower
Appendix C
Complaint Handling Procedure
All complaints received by Flinders Power employees including security are handled according to the following steps
All complaint receivers are required to
bull Collect all details from the complainant (time location concerns)
bull Repeat back and confirm details with the complainant
bull Obtain complainants contact details
bull Advise relevant Supervisor immediately
The Facility Manager is to be advised as soon as practicable of receipt of the complaint
The complainant will be contacted and an investigation of the complaint initiated as soon as practicable of the receipt of the complaint The investigation typically may include
- A visit to the complainant to
o Observe local dust conditions
o Discuss the event with the complainant and
o Taking of samples
- A review of site data from the time of the incident
- A review of meteorological data
Following the investigation the complainant is to receive a written response outlining the investigation procedure and findings If requested the findings of the investigation will be explained and discussed with the complainant in person
Details of the complaint the investigation management actions implemented and follow up is recorded within the FP Incident Management System
All media enquiries are to be managed through the approved Flinders Power Media Protocols
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-
bull -~ - - alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 1 Northern Power Station CW channels Playford workshops amp environs as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
U l
Planned t
Completion Date i m
Consequence Likelihood Rating amp Priority
1 General Office activities Energy use Resource use
Energy overuse Resource 5 Insignificant C Likely Low 22 waste disposal costs and
recyclingsalvage revenue E ective 5 Insignificant C Likely Low 22
2 General General waste management
General waste Resource use Excessive waste
generation Resource 4 Minor C Likely Medium 17
Waste segregation JSP 320 Unloading and Handling of Rubbish Skips monitor re
contamination E ective 5 Insignificant E Unlikely Low 25
3 General
equipment decommissioning
Industrial waste management (ex-asbestos) (Waste oil considered separately)
Industrial waste [local] storage and transport to site storage area
Waste disposalrecycling soilgroundwater contamination
Improper waste disposal contamination
of waste destination enforcement action
Waste 3 Moderate C Likely High 11
Waste Management at APS S38 Disposal Procedure for Aerosol cans etc S311 Storage Handling and Disposal of solvents etc amp S315 Storage Handling
and Disposal of waste oil JSP 320 Unloading and Handling of Rubbish Skips
monitor to ensure clear identification samplinganalysis if required Maintain
waste disposal records (eg WTCs or WTFs)
E ective 3 Moderate E Unlikely Low 21
4 APS post
production
Asbestos management Asbestos removal storage and disposal
Air quality
Airborne asbestos enforcement action
Human Health 2 Major D Possible High 12
S32 Asbestos Management System amp site procedures qualified contractor S37 Guidelines for the safe use of insulation of
materials containing SMFs Asbestos Register air monitoring waste disposal
records (WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
5 General
decommissioning
Industrial Waste water (contaminated drains and ash)
Overflows Marine pollution
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
JSP117 Drain cleaning amp JSP228 Ash Pit cleaning block drains within work areas
that discharge directly to marine environment if practicable Emergency
Response Plan Spill response IMS water monitoring programme disposal records
(WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
13 Heath Safety amp
Security
Implement contingency plan decommissioningdemo lition
environmental contingencies
Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency response plans (reviewed annually) review for decommissioning demolition activities (after project plan
has been developed) Crisis Management Plan Review response equipment and
training Support procedures eg Incident Management System Station Instruction
S17 (Spill Response) S316 (Spill Reporting) S18 (Fire Reporting) S4G29
Hazard inspections amp JSP385 Use of emergency boat IMS IMS
E ective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental
Management Plans to be developed incorporating specific measures for
activities with potential to cause environmental harm
Alinta Energy Earlymid 2016
14 Heath Safety amp
Security
Fire on site decommissioningdemo lition
Contaminated fire water discharge
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Contaminated drains system Emergency Response Plan Crisis Management Plan
review options re containment of fire water eg within ABC Lake in preference to
discharge to ash pond storage Maintenance routines Station Instruction
S17 (Spill Response) IMS Plant monitoring
E ective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
15 Heath Safety amp
Security
Site security decommissioningdemo lition
vandalism Site amenity Site damage injury to
persons Security 3 Moderate D Possible Medium 16
Site security systems Emergency Response Plan
E ective 3 Moderate E Unlikely Low 21
16 Heath Safety amp
Security Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora enforcement action
Environmental 4 Minor D Possible Low 20 Restricted spraying to low wind speed
wind speed estimates records E ective 4 Minor E Unlikely Low 23
18 Heath Safety amp
Security
Land management landscaping (post decommissioningdemo lition)
Maintaining amp improving landscaping
Improved site amenity Poor visual amenity
soil erosion dust Environmental
Final landforms and potential landscaping plan
E ective
19 Heath Safety amp
Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections E ective 4 Minor E Unlikely Low 23
20 Heath Safety amp
Security
Waste recycling area(s) decommissioningdemo lition
Waste management
Resource use
Improper waste disposal contamination
of waste destination enforcement action
Resource 3 Moderate E Unlikely Low 21
Waste segregation (to improve recycling re-use) Waste management Process Site
Map S311 Storage Handling and Disposal of solvents etc Determine if the
area is adequate for decommissioningdemolition Establish additional areas for staging of material prior to re-use on site andor disposal
Control runoff (via containment pond(s) Site inspections routine visits by external recycling contractor S37 Guidelines for
the safe use of insulation materials containing SMF waste recycling records
Waste disposal records (WTCs and WTFs)
E ective 4 Minor E Unlikely Low 23
21 Heath Safety amp
Security
Disposal of mercury-containing lighting (eg fluoros) decommissioning
Landfill Soilgroundwater contamination
Improper waste disposal contamination
of waste destination enforcement action
Resource 4 Minor E Unlikely Low 23
Waste segregation managed by appropriate waste management company
Waste management Process Site Map S38 Disposal Procedure for Aerosol cans
empty fluid drums small batteries permalubes and mercury globes Provide labelled containers (eg 200L drums) for
storage prior to removal Waste disposal records (WTCs and WTFs)
E ective 5 Insignificant E Unlikely Low 25
22 Heath Safety amp
Security
Road traffic decommissioningdemo lition
Dust emissions Air quality Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust suppressant if required) Hi VolDustTrak dust monitoring
on site boundary
E ective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement Action Owner
Strategic or Approved Action
U l
Planned t
Completion Date i m
Consequence Likelihood Rating amp Priority
23 Environmental
Services
Environmental Compliance decommissioningdemo lition
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting
environmental checklist for decommissioningdemolition Surrender
of EPA Licence Site Environmental Awareness Induction S4G29 Hazard
Inspections update induction material for decommissioningdemolition Water
Sampling Program stack and ambient monitoring reporting on EMP and
reporting to EPA
E ective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance requirements and regulatory in Alinta Closure
Environmental Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environmental
Services
Site environmental performance monitoring decommissioningdemo lition
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS
Environmental water sampling for SS pH and salinity Additional siteboundary
monitoring required during decommissioningdemolition (eg HI_Vol
and noise) IMS regular monitoring reports (eg weekly) Monitoring
programmes and regular reporting
E ective 3 Moderate E Unlikely Low 21
26 Environmental
Services
Ambient environmental monitoring instrumentation calibration (decommissioningdem olition)
Environmental monitoring
Non compliance
Nil Improper process in place
Procedural 3 Moderate D Possible Medium 16
JSP400 APS Environmental water sampling at APS Calibration program and
records Maintenance routines E ective 3 Moderate E Unlikely Low 21
27 Environmental
Services
Performance Reporting decommissioningdemo lition
Compliance Non compliance (EPA reporting monthly (required by ECA Schedule 1 11))
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18 Sample Management JSPs Reporting
calendar ambient monitoring E ective 2 Major E Unlikely Medium 18
Specific reference to compliance and regulatory requirements in Alinta
Closure Environmental Management Plan including reporting timetable
Alinta Energy Through to demolition completion
28 Environmental
Services
Decommissioningdem olition
Non compliance (EPA reporting (annual))
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Reporting calendar Internal management
reporting ambient monitoring E ective 3 Moderate E Unlikely Low 21
29 Environmental
Services
Pre-decommissioning (last operational year)
Non compliance (Annual Independent Verification of Monitoring Program)
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Reporting calendar water quality
monitoring program E ective 3 Moderate E Unlikely Low 21
30 Environmental
Services Pre-decommissioning (last operational year)
Annual NPI reporting
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Reporting calendar Usage of reportable
substances data E ective 3 Moderate E Unlikely Low 21
31 Environmental
Services
Implement and monitor program in response to environmental concerns (decommissioningdem olition)
Environmental Improvement Program implementation
Environmental improvements
Nil Improper process in place
Procedural IMS regular updating of actions E ective
32 Environmental
Services
Discharges into the marine environment decommissioningdemo lition (including use or removal of bulk chemicals)
Contaminated drains SPELS
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Chemical oil and fuel bunding oil separation stormwater segregation
monitoring of stormwater control systems S310 (Ferrous sulphate) S311
(Solvents) S313 (Sodium hypochlorite) S315 (Waste oil) Pump outs
Decommissioning and demolition within containment (minimise direct discharges
to marine environment) Emergency Response Plan IMS water monitoring
programme site inspections
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
33 Environmental
Services
Site operations decommissioningdemo lition
Noise Nuisance Public nuisance
complaints enforcement action
Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm weekdays 8am-6pm weekends) boundary noise monitoring
E ective 3 Moderate E Unlikely Low 21
34 Environmental
Services
Site operations decommissioningdemo lition
Spillage of stored materials and wastes
Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 2 Major E Unlikely Medium 18
IMS regular updating of actions site inspections (required by ECA) S31
Chemwatch S311 Storage Handling and Disposal of solvents etc Emergency Response Plan Crisis Management Plan
IMS inspection records
E ective 3 Moderate E Unlikely Low 21
35 Environmental
Services
Historical operations post decommissioningdemo lition
Discharges to soilgroundwater landfills
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular monitoring of
known groundwater contamination E ective 3 Moderate E Unlikely Low 21
36 Environmental
Services
Environmental incidents decommissioningdemo lition
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for decommissioningdemolition activities)
IMS Incident Management System E ective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental
Management Plans to be developed incorporating specific measures for
activities with potential to cause environmental harm Site incident
reporting mechanism to be used (IMS)
Alinta Energy Earlymid 2016
37 Environmental
Services
Environmental awareness decommissioningdemo lition
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for decommissioningdemolition activities) training and induction records
(for decommissioning demolition induction)
E ective 4 Minor E Unlikely Low 23
38 Environmental
Services
Environmental auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition requirements
(eg demolition approval conditions) E ective 3 Moderate E Unlikely Low 21
39 Environmental
Services
Community complaints decommissioningdemo lition
Amenity community perception of organisation
Nuisance Complaints local
action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to
complainant Complaints Register Internal media advisor Reporting to management
E ective 3 Moderate E Unlikely Low 21
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
U l
Planned t
Completion Date i m
Consequence Likelihood Rating amp Priority
40 Environmental
Services
Annual community consultation post operation
Community perception of organisation
Non compliance Nil Improper process in
place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar E ective 3 Moderate E Unlikely Low 21
41 Environmental
Services
Potable water use decommissioningdemo lition
Excessive potable water use
Resource waste Water overuse financial cost increased
risk of Gulf contamination
Resource 3 Moderate E Unlikely Low 21 Re-location of services prior to demolition E ective 4 Minor E Unlikely Low 23
42 Operations Tech
Support
Environmental monitoring instrumentation calibration (decommissioningdem olition)
Environmental monitoring
Non compliance
Nil Improper process in place
Procedural 3 Moderate D Possible Medium 16
Calibration program and records Maintenance routines (applied to ambient
monitoring) E ective 3 Moderate E Unlikely Low 21
46 Post production coal conveyors
Coal conveyors Coal dust (conveyorstransfe rs)
Air quality Personnel exposure
limit exceedence public nuisance complaints
enforcement action
Environmental 3 Moderate C Likely High 11 wash down of built up dust E ective 5 Insignificant E Unlikely Low 25
47 Post production
coal bins
Coal bin storage Coal dust Air quality Personnel exposure
limit exceedence public nuisance complaints
enforcement action
Environmental 3 Moderate D Possible Medium 16 Wash down of built up dust ambient
monitoring maintenance records E ective 3 Moderate E Unlikely Low 21
48 Fireexplosion Air quality
Coal dust explosion Fire 2 Major D Possible High 12
Review risk assessments for decommissioningdemolition Emergency
Response Plan IMS E ective 3 Moderate E Unlikely Low 21
49 APS post production
Coal plant washdown Marine discharge Water quality Contaminated water
entering the Gulf damage to Gulf waters
enforcement action
Environmental 4 Minor D Possible Low 20
Containment of washwater JSP 107 Bunker Washing water monitoring
programme E ective 4 Minor E Unlikely Low 23
50 APS post production
Decommissioningdem olition
Oil spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21
Contaminated drain system S17 Oil Spill Procedure review and enhance containment options Emergency
Response Plan IMS Maintenance records
E ective 4 Minor E Unlikely Low 23
51 APS post production
Decommissioningdem olition
Fuel oil spillage (eg gun malfunction)
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate D Possible Medium 16
Operating controls S17 Oil Spill procedure contaminated drains Emergency Response Plan IMS
E ective 3 Moderate E Unlikely Low 21
52 APS post
production
Decommissioningdem olition
Seawater flow Ecological impact (eg fauna loss)
ReductionIncrease in number amp abundance of
local marine species Environmental 3 Moderate E Unlikely Low 21
Review options for cooling water channels (eg breach wall)
E ective 3 Moderate E Unlikely Low 21
53 APS post
production
Decommissioningdem olition
Contamination of condenser cooling water
Ecological impact Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 2 Major E Unlikely Medium 18 Review options for condensers (post
production) visual E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
54 APS post
production
Boiler water drainage Treated water discharge
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 4 Minor D Possible Low 20 drainage into Ash pit Operating controls
ambient water monitoring programme E ective 4 Minor E Unlikely Low 23
55 APS post
production
Decommissioningdem olition
Hydrogen gas leakage
Air quality fire hazard Explosion personnel
exposure Fire 2 Major E Unlikely Medium 18
Evacuation of hydrogen Maintenance routines Emergency Response Plan
Crisis Management Plan IMS hydrogen monitoring
E ective 2 Major E Unlikely Medium 18
56 APS post
production
Auxiliary boiler operation decommissioningdemo lition
Spillage of dosed water
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21 Operating controls containment
Maintenance routines E ective 3 Moderate E Unlikely Low 21
57 APS post
production
Fuel oil removal Fuel oil spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21
Contaminated drains Operating controls S17 Oil Spill procedure Emergency
Response Plan IMS E ective 3 Moderate E Unlikely Low 21
58 APS post
production
Emergency diesel generators decommissioningdemo lition
Diesel spillage (loading and operational)
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21
Bunding Operating controls S17 Oil Spill procedure tested transfer hoses
Maintenance routines Emergency Response Plan IMS
E ective 3 Moderate E Unlikely Low 21
59 APS post
production
Fly ashbottom ash handling systems decommissioningdemo lition
Spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 2 Major E Unlikely Medium 18 Flush ash systems to ash storage area
water monitoring programme E ective 4 Minor E Unlikely Low 23
60 APS post
production
Fly ash re-use storage and handling area
Spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 4 Minor D Possible Low 20 Empty and washdown plant Discharge to
containment area E ective 4 Minor E Unlikely Low 23
61 APS post
production
Decommissioningdem olition
Contamination of flow to ash storage pond (eg oil)
Water quality Spill entering ash disposal system discharge to Gulf
waters enforcement action
Environmental 3 Moderate D Possible Medium 16
Contaminated drains oil containment oil handling ash pond controls Ash storage dam inspections Emergency Response
Plan IMS inspection records
E ective 4 Minor E Unlikely Low 23
62 APS post
production
Machine degreasingwashdown
Wastewater discharge
Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 3 Moderate C Likely High 11
Bunded washbays JSP104 Degreasing JSP102 Steam Cleaner Operation
contaminated drain system contained degreasers Quick break degreaser oil
separator S311 Storage Handling and Disposal of solvents etc water monitoring
programme
E ective 4 Minor E Unlikely Low 23
63 APS post
production Air emissions (volatile)
Air quality fire hazard
Fire personnel exposure
Fire 3 Moderate E Unlikely Low 21 Procedures extraction systems E ective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
U l
Planned t
Completion Date i m
Consequence Likelihood Rating amp Priority
64 APS post
production
Oil removal Oil spillage Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 3 Moderate C Likely High 11
Station Instructions S17 Oil Spill procedure S315 Storage Handling and
Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil treatment plant Contaminated drain system Emergency Response Plan IMS water monitoring
programme
E ective 4 Minor E Unlikely Low 23
65 APS post
production
Waste oil storage Oil spillage Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 3 Moderate C Likely High 11
Bunded storage S17 Oil Spill procedure S315 Storage Handling and Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil treatment plant Emergency
Response Plan IMS water monitoring programme
E ective 3 Moderate E Unlikely Low 21
66 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major E Unlikely Medium 18 Bunded storage Emergency Response
Plan Spill response IMS E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
67 APS post
production
Fire Air quality Fire personnel
exposure Fire 3 Moderate E Unlikely Low 21
Storage controls (minimise ignition sources) Emergency Response Plan
Crisis Management Plan IMS E ective 3 Moderate E Unlikely Low 21
68 APS post
production
Discharges into the marine environment
Contaminated drains SPELS
Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 2 Major D Possible High 12
Chemical oil and fuel bunding oil separation maintenance of SPEL tanks
stormwater segregation review of routine to inspect SPEL tanks Emergency
Response Plan IMS water monitoring programme site inspections SPEL
cleanout routines
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
69 APS post
production
Oil -filled electrical equipment decommissioning and removal
Leakage Water quality
Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 2 Major E Unlikely Medium 18
Bunding S17 Oil Spill procedure JSP271 NPS Step-up Unit transformer amp line
isolator maintenance Emergency Response Plan Crisis Management Plan IMS monitoring of oil properties (eg PCB
content)
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
70 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major E Unlikely Medium 18 Containment of oil-filled equipment
Emergency Response Plan E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
71 APS post
production
Fire explosion Air quality
Fire personnel exposure
Fire 2 Major E Unlikely Medium 18 Permits containment E ective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
72 APS post
production
Battery Rooms decommissioning and removal
Acid spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 4 Minor D Possible Low 20
Bunded JSP052 Battery maintenance JSP315 Battery Bank Replacement S31
Chemwatch Maintenance routines Emergency Response Plan IMS
E ective 4 Minor E Unlikely Low 23
73 APS post
production
Fireexplosion (gas generation)
Air quality Fire personnel
exposure Fire 3 Moderate E Unlikely Low 21
Extraction system Maintenance routines Emergency Response Plan IMS
E ective 4 Minor E Unlikely Low 23
74 APS post
production
Fire pumps decommissioning
Fueloil spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 4 Minor E Unlikely Low 23 S17 Oil Spill procedure Emergency
Response Plan IMS E ective 4 Minor E Unlikely Low 23
75 APS post
production
WorkshopsGarage decommissioning and demolition
Removal and disposal of dangerous substances spills
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21
Bunded storage S31 Chemwatch Emergency Response Plan IMS Waste disposal documentation (WTCsWTFs)
E ective 4 Minor E Unlikely Low 23
76 APS post
production
Removal of dangerous substances incompatible storage fire
Air quality Personnel exposure
limit exceedence public nuisance complaints
enforcement action
Environmental 3 Moderate E Unlikely Low 21
Segregation of dangerous substances S31 Chemwatch S311 Storage
Handling and Disposal of solvents etc Emergency Response Plan IMS
E ective 3 Moderate E Unlikely Low 21
77 APS post
production
Disposal of oilycontaminated rags
Contaminated soil Soilgroundwater contamination clean up
actions enforcement actions
Environmental 4 Minor E Unlikely Low 23 Segregation for disposal E ective 5 Insignificant E Unlikely Low 25
78 APS post
production
Grit blasting decommissioning and demolition
particulate emissions
Air quality water quality
Air soil amp groundwater contamination clean up
actions enforcement actions
Environmental 3 Moderate D Possible Medium 16
Removal and disposal of grit washdown prior to demolition Containment of
washdown water E ective 4 Minor E Unlikely Low 23
79 APS post
production
Demolition general Lead emissions (from lead-based paints)
Personnel exposure limit exceedence public
nuisance complaints enforcement action
Environmental 3 Moderate E Unlikely Low 21
lead paint testing dust control processes Maintenance routines lead in paint testing
(as required) and recorded E ective 4 Minor E Unlikely Low 23
80 APS post
production
Refrigerationair conditioning servicing decommissioning (as required)
Release of ozone depleting substances
Depletion of Ozone layer
Environmental harm regulatory enforcement
Environmental 3 Moderate D Possible Medium 16
ARC licensed operators ozone-depleting gas reclaim for decommissioned equipment Audits based on ARC
requirements JSP372 Air Conditioner Maintenance Records of ozone-depleting
substances reclaim etc
E ective 3 Moderate E Unlikely Low 21
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
U l t i m
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
Planned Completion Date
Consequence Likelihood Rating amp Priority
Sewerage system Sewage overflow Water quality Spill entering onsite
81 APS post
production
relocation of services (caused by decommissioning and
drains system discharge to Gulf
waters enforcement Environmental 4 Minor D Possible Low 20
Response to sewer chokes JSP028 Sewage Pit pump and control repairs
Emergency Response Plan IMS E ective 4 Minor E Unlikely Low 23
demolition) action
bullmiddotmiddot - ~- alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 2 Unit 3 Area as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates
records ffective 4 Minor E Unlikely Low 23
18 Heath
Safety amp Security
Land management landscaping (post decommissionin gdemolition)
Maintaining amp improving landscaping
Improved site amenity
Poor visual amenity soil erosion dust
Environmental Final landforms and potential
landscaping plan ffective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections ffective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissionin gdemolition
Dust emissions Air quality Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust
suppressant if required) Hi VolDustTrak dust monitoring on site
boundary
ffective 4 Minor E Unlikely Low 23
23 Environmen tal Services
Environmental Compliance decommissionin gdemolition
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting
environmental checklist for decommissioningdemolition
Surrender of EPA Licence Site Environmental Awareness Induction S4G29 Hazard
Inspections update induction material for
decommissioningdemolition Water Sampling Program stack and
ambient monitoring reporting on EMP and reporting to EPA
ffective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environmen tal Services
Site environmental performance monitoring decommissionin gdemolition
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS
Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during decommissioningdemolition (eg HI_Vol and noise) IMS regular
monitoring reports (eg weekly) Monitoring programmes and regular
reporting
ffective 3 Moderate E Unlikely Low 21
33 Environmen tal Services
Site operations decommissionin gdemolition
Noise Nuisance Public nuisance
complaints enforcement action
Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm
weekdays 8am-6pm weekends) boundary noise monitoring
ffective 3 Moderate E Unlikely Low 21
35 Environmen tal Services
Historical operations post decommissionin gdemolition
Discharges to soilgroundwat er landfills
Soilgroundwater contamination Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular monitoring
of known groundwater contamination
ffective 3 Moderate E Unlikely Low 21
36 Environmen tal Services
Environmental incidents decommissionin gdemolition
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for decommissioningdemolition
activities) IMS Incident Management System
ffective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
37 Environmen tal Services
Environmental awareness decommissionin gdemolition
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for
decommissioningdemolition activities) training and induction records (for decommissioning
demolition induction)
ffective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
38 Environmen tal Services
Environmental auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition requirements (eg demolition
approval conditions)
ffective 3 Moderate E Unlikely Low 21
39 Environmen tal Services
Community complaints decommissionin gdemolition
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to complainant Complaints Register
Internal media advisor Reporting to management
ffective 3 Moderate E Unlikely Low 21
40 Environmen tal Services
Annual community consultation post operation
Community perception of organisation
Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Compliance calendar ffective 3 Moderate E Unlikely Low 21
41 Environmen tal Services
Potable water use decommissionin gdemolition
Excessive potable water use
Resource waste
Water overuse financial cost increased risk of
Gulf contamination Resource 3 Moderate E Unlikely Low 21
Re-location of services prior to demolition
ffective 4 Minor E Unlikely Low 23
bullmiddotmiddot middot~ bullmiddot ~- alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 4a Coal Stockpile amp Rail Loop Area as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed
estimates records ffective 4 Minor E Unlikely Low 23
17 Heath
Safety amp Security
Land management heritage (decommissioningd emolition)
Damage to aboriginal andor post settlement heritage items
Damage to heritage items Damage to or loss of
Native amp Heritage items sites
Heritage 3 Moderate E Unlikely Low 21
Site Environmental Awareness Induction
confirmation of any potential heritage sites within impacted
area
ffective 3 Moderate E Unlikely Low 21
18 Heath
Safety amp Security
Land management landscaping (post decommissioningde molition)
Maintaining amp improving landscaping
Improved site amenity Poor visual amenity soil
erosion dust Environmental
Final landforms and potential landscaping plan
ffective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections ffective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissioningde molition
Dust emissions Air quality
Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads
(use of dust suppressant if required) Hi VolDustTrak
dust monitoring on site boundary
ffective 4 Minor E Unlikely Low 23
23 Environmen tal Services
Environmental Compliance decommissioningde molition
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting environmental
checklist for decommissioningdemolition
Surrender of EPA Licence Site Environmental
Awareness Induction S4G29 Hazard Inspections update
induction material for decommissioningdemolition Water Sampling Program
stack and ambient monitoring reporting on EMP and
reporting to EPA
ffective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
24 Environmen tal Services
Coal stockpile management pre-decommissioning (utilisation of stockpile)
Coal dust Air quality
Limit exceedence public nuisance
complaints enforcement action
Environmental 2 Major C Likely High 7
Dust Management Plan Sprays Water truck JSP 322 -paper mulch Project Group
IMS daily checks and records wind speeddirection
ambient monitoring
ffective 4 Minor E Unlikely Low 23
25 Environmen tal Services
Site environmental performance monitoring decommissioningde molition
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS
JSP403 APS Environmental water sampling for SS pH
and salinity Additional siteboundary monitoring
required during decommissioningdemolition (eg HI_Vol and noise) IMS
regular monitoring reports (eg weekly) Monitoring
programmes and regular reporting
ffective 3 Moderate E Unlikely Low 21
26 Environmen tal Services
Ambient environmental monitoring instrumentation calibration (decommissioningd emolition)
Environmental monitoring
Non compliance
Nil Improper process in place
Procedural 3 Moderate D Possible Medium 16
JSP400 APS Environmental water sampling at APS Calibration program and
records Maintenance routines
ffective 3 Moderate E Unlikely Low 21
33 Environmen tal Services
Site operations decommissioningde molition
Noise Nuisance
Public nuisance complaints
enforcement action Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm weekdays 8am-6pm weekends) boundary
noise monitoring
ffective 3 Moderate E Unlikely Low 21
34 Environmen tal Services
Site operations decommissioningde molition
Spillage of stored materials and wastes
Water quality
Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 2 Major E Unlikely Medium 18
IMS regular updating of actions site inspections (required by ECA) S31
Chemwatch S311 Storage Handling and Disposal of solvents etc Emergency
Response Plan Crisis Management Plan IMS
inspection records
ffective 3 Moderate E Unlikely Low 21
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
35 Environmen tal Services
Historical operations post decommissioningde molition
Discharges to soilgroundwat er landfills
Soilgroundwater contamination Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular
monitoring of known groundwater contamination
ffective 3 Moderate E Unlikely Low 21
36 Environmen tal Services
Environmental incidents decommissioningde molition
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for
decommissioningdemolition activities) IMS Incident Management System
ffective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
37 Environmen tal Services
Environmental awareness decommissioningde molition
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction
(reviewed for decommissioningdemolition
activities) training and induction records (for
decommissioning demolition induction)
ffective 4 Minor E Unlikely Low 23
38 Environmen tal Services
Environmental auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include
decommissioningdemolition requirements (eg demolition
approval conditions)
ffective 3 Moderate E Unlikely Low 21
39 Environmen tal Services
Community complaints decommissioningde molition
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation
Directed response to complainant Complaints Register Internal media
advisor Reporting to management
ffective 3 Moderate E Unlikely Low 21
40 Environmen tal Services
Annual community consultation post operation
Community perception of organisation
Non compliance Nil Improper process in
place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar ffective 3 Moderate E Unlikely Low 21
41 Environmen tal Services
Potable water use decommissioningde molition
Excessive potable water use
Resource waste Water overuse financial
cost increased risk of Gulf contamination
Resource 3 Moderate E Unlikely Low 21 Re-location of services prior
to demolition ffective 4 Minor E Unlikely Low 23
43 Loco
refueling area
Loco refueling area (decommissioningd emolition)
Historical oilfuel spillage
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 3 Moderate C Likely High 11 Review for any potential
contamination ffective 3 Moderate E Unlikely Low 21
44
Post production
coal stockpile
area
Runoff from coal stockpile area (post operation)
Water quality (runoff)
Water quality Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 3 Moderate C Likely High 11
Collection no direct marine discharges water monitoring
programme ffective 4 Minor E Unlikely Low 23
45
Post production
coal stockpile
area
Post operation coal stockpile area
Fire (spontaneous combustion)
Air quality Fire smokeparticulate
emissions public amp personnel exposure
Fire 3 Moderate E Unlikely Low 21
Develop strategy to reduce risks of spon com In post operational coal stockpile area Monitoring by Alinta
staff IMS
ffective 4 Minor E Unlikely Low 23
middot bullmiddotmiddot - ~ - al1ntaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 4b Ash Dam ABC Lake amp Polishing Pond as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
6 Heath
Safety amp Security
Ash storage dam management decommissioning demolition
Dust emissions Air quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 3 Moderate D Possible Medium 16
Maintenance work with periodic salt water flooding to maintain crust plus chemical
coating treatment of levees Ash Storage Dam Development Recommendations Ash Storage Dam Management Responsibilities Matrix Develop strategies for management
during decommissioningdemolition and long-term APS Ash Storage Dam
Inspection Checklist JSP234 Ash disposal pipe laying JSP235 Vehicle operation in
Ash Pond area IMS daily inspections ambient monitoring 3 monthly inspections
Effective 3 Moderate E Unlikely Low 21
7 Heath
Safety amp Security
Water emissions (including seepage)
Water quality (carryover of ash trace elements nutrients pH)
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major D Possible High 12
Refer to 6 detention time seeping interception and pump-back review need for
additional floating curtainoil capture daily inspections weekly water sampling water quality monitoring programme 3 monthly
inspections
Effective 3 Moderate E Unlikely Low 21
8 Heath
Safety amp Security
Groundwater contamination
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18 Refer to 7 groundwater monitoring
programme Effective 4 Minor D Possible Low 20
9 Heath
Safety amp Security
Visual impact Amenity Complaints local action
media attention regulatory involvement
Community 3 Moderate C Likely High 11 Screening planting inspection records Effective 4 Minor D Possible Low 20
10 Heath
Safety amp Security
Breeding of midges
Amenity Public health niusance complaints local action
media attention regulatory involvement
Community 3 Moderate C Likely High 11
Control of salinity Site inspections long-term plan for ash storage area Weekly
water sampling Effective 4 Minor E Unlikely Low 23
11 Heath
Safety amp Security
Ash storage dam leakage (eg levee breach) post decommissioning demolition
Water quality Marine contamination mangrove destruction
Marine contamination clean up actions
enforcement actions Environmental 2 Major E Unlikely Medium 18
Refer to 5 perimeter dam wall design inspections Emergency Response Plan
Crisis Management Plan IMS Ash Storage Pond Closure Plan (need to consider long-term stability of levees) daily inspections 3
monthly inspections inspection records
Effective 2 Major E Unlikely Medium 18
12 Heath
Safety amp Security
Land contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major E Unlikely Medium 18
Refer to 6 daily inspections access controls review risks from
decommissioning processes (eg oilhazardous materials removal from
equipment) contain on site Emergency Response Plan Crisis Management Plan
IMS daily inspections
Effective 2 Major E Unlikely Medium 18
14 Heath
Safety amp Security
Fire on site decommissioning demolition
Contaminated fire water discharge
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Contaminated drains system Emergency Response Plan Crisis Management Plan
review options re containment of fire water eg within ABC Lake in preference to
discharge to ash pond storage Maintenance routines Station Instruction
S17 (Spill Response) IMS Plant monitoring
Effective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
15 Heath
Safety amp Security
Site security decommissioning demolition
vandalism Site amenity Site damage injury to
persons Security 3 Moderate D Possible Medium 16
Site security systems Emergency Response Plan
Effective 3 Moderate E Unlikely Low 21
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates records
Effective 4 Minor E Unlikely Low 23
18 Heath
Safety amp Security
Land management landscaping (post decommissioning
Maintaining amp improving landscaping
Improved site amenity Poor visual amenity soil
erosion dust Environmental
Final landforms and potential landscaping plan
Effective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections Effective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissioning demolition
Dust emissions Air quality Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust suppressant if required) Hi VolDustTrak dust monitoring
on site boundary
Effective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement Action Owner
Strategic or Approved Action
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
23 Environment al Services
Environmental Compliance decommissioning demolition
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting
environmental checklist for decommissioningdemolition Surrender of
EPA Licence Site Environmental Awareness Induction S4G29 Hazard
Inspections update induction material for decommissioningdemolition Water
Sampling Program stack and ambient monitoring reporting on EMP and reporting
to EPA
Effective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environment al Services
Site environmental performance monitoring decommissioning demolition
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during decommissioningdemolition (eg HI_Vol and noise) IMS regular monitoring reports (eg
weekly) Monitoring programmes and regular reporting
Effective 3 Moderate E Unlikely Low 21
26 Environment al Services
Ambient environmental monitoring instrumentation calibration (decommissioning demolition)
Environmental monitoring
Non compliance
Nil Improper process in place
Procedural 3 Moderate D Possible Medium 16
JSP400 APS Environmental water sampling at APS Calibration program and records
Maintenance routines Effective 3 Moderate E Unlikely Low 21
32 Environment al Services
Discharges into the marine environment decommissioning demolition (including use or removal of bulk chemicals)
Contaminated drains SPELS
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Chemical oil and fuel bunding oil separation stormwater segregation
monitoring of stormwater control systems S310 (Ferrous sulphate) S311 (Solvents) S313 (Sodium hypochlorite) S315 (Waste
oil) Pump outs Decommissioning and demolition within containment (minimise
direct discharges to marine environment) Emergency Response Plan IMS water monitoring programme site inspections
Effective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
33 Environment al Services
Site operations decommissioning demolition
Noise Nuisance Public nuisance complaints
enforcement action Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm weekdays 8am-6pm weekends) boundary noise monitoring
Effective 3 Moderate E Unlikely Low 21
34 Environment al Services
Site operations decommissioning demolition
Spillage of stored materials and wastes
Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 2 Major E Unlikely Medium 18
IMS regular updating of actions site inspections (required by ECA) S31
Chemwatch S311 Storage Handling and Disposal of solvents etc Emergency
Response Plan Crisis Management Plan IMS inspection records
Effective 3 Moderate E Unlikely Low 21
35 Environment al Services
Historical operations post decommissioning demolition
Discharges to soilgroundwat er landfills
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular monitoring of
known groundwater contamination Effective 3 Moderate E Unlikely Low 21
36 Environment al Services
Environmental incidents decommissioning demolition
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for decommissioningdemolition activities) IMS
Incident Management System Effective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to be
used (IMS)
Alinta Energy Earlymid 2016
37 Environment al Services
Environmental awareness decommissioning demolition
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for decommissioningdemolition activities) training and induction records
(for decommissioning demolition induction)
Effective 4 Minor E Unlikely Low 23
38 Environment al Services
Environmental auditing (and forwarding summary to EPA) review requirement post
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition requirements
(eg demolition approval conditions) Effective 3 Moderate E Unlikely Low 21
39 Environment al Services
Community complaints decommissioning demolition
Amenity community perception of organisation
Nuisance
Complaints local action media attention
regulatory involvement Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to
complainant Complaints Register Internal media advisor Reporting to management
Effective 3 Moderate E Unlikely Low 21
40 Environment al Services
Annual community consultation post operation
Community perception of organisation
Non compliance Nil Improper process in
place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar Effective 3 Moderate E Unlikely Low 21
41 Environment al Services
Potable water use decommissioning demolition
Excessive potable water use
Resource waste Water overuse financial cost increased risk of
Gulf contamination Resource 3 Moderate E Unlikely Low 21 Re-location of services prior to demolition Effective 4 Minor E Unlikely Low 23
bullmiddotmiddot -~ - - alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 7 Hospital Creek as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure
Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates
records ffective 4 Minor E Unlikely Low 23
18 Heath
Safety amp Security
Land management landscaping (post decommissio ningdemolitio n)
Maintaining amp improving landscaping
Improved site amenity
Poor visual amenity soil erosion dust
Environmental Final landforms and potential
landscaping plan ffective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections ffective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissio ningdemolitio n
Dust emissions Air quality Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust suppressant if required) Hi VolDustTrak dust monitoring on
site boundary
ffective 4 Minor E Unlikely Low 23
23 Environmen tal Services
Environment al Compliance decommissio ningdemolitio n
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA
reporting environmental checklist for decommissioningdemolition Surrender of EPA Licence Site
Environmental Awareness Induction S4G29 Hazard
Inspections update induction material for
decommissioningdemolition Water Sampling Program stack
and ambient monitoring reporting on EMP and reporting to EPA
ffective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environmen tal Services
Site environmenta l performance monitoring decommissio ningdemolitio n
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS
Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during
decommissioningdemolition (eg HI_Vol and noise) IMS regular monitoring reports (eg weekly) Monitoring programmes and
regular reporting
ffective 3 Moderate E Unlikely Low 21
32 Environmen tal Services
Discharges into the marine environment decommissio ningdemolitio n (including use or removal of bulk chemicals)
Contaminated drains SPELS
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Chemical oil and fuel bunding oil separation stormwater
segregation monitoring of stormwater control systems
S310 (Ferrous sulphate) S311 (Solvents) S313 (Sodium
hypochlorite) S315 (Waste oil) Pump outs Decommissioning and
demolition within containment (minimise direct discharges to
marine environment) Emergency Response Plan IMS water monitoring programme site
inspections
ffective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
33 Environmen tal Services
Site operations decommissio ningdemolitio n
Noise Nuisance Public nuisance
complaints enforcement action
Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm
weekdays 8am-6pm weekends) boundary noise monitoring
ffective 3 Moderate E Unlikely Low 21
35 Environmen tal Services
Historical operations post decommissio ningdemolitio n
Discharges to soilgroundwat er landfills
Soilgroundwater contamination Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular
monitoring of known groundwater contamination
ffective 3 Moderate E Unlikely Low 21
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure
Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement Action Owner
Strategic or Approved Action
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
36 Environmen tal Services
Environment al incidents decommissio ningdemolitio n
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for
decommissioningdemolition activities) IMS Incident Management System
ffective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
37 Environmen tal Services
Environment al awareness decommissio ningdemolitio n
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for
decommissioningdemolition activities) training and induction records (for decommissioning
demolition induction)
ffective 4 Minor E Unlikely Low 23
38 Environmen tal Services
Environment al auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition requirements (eg demolition
approval conditions)
ffective 3 Moderate E Unlikely Low 21
39 Environmen tal Services
Community complaints decommissio ningdemolitio n
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to complainant
Complaints Register Internal media advisor Reporting to
management
ffective 3 Moderate E Unlikely Low 21
40 Environmen tal Services
Annual community consultation post operation
Community perception of organisation
Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Compliance calendar ffective 3 Moderate E Unlikely Low 21
41 Environmen tal Services
Potable water use decommissio ningdemolitio n
Excessive potable water use
Resource waste
Water overuse financial cost increased risk of
Gulf contamination Resource 3 Moderate E Unlikely Low 21
Re-location of services prior to demolition
ffective 4 Minor E Unlikely Low 23
bullbull -~J- alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 8 Playford Power Stations as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
1 General Office activities
Energy use Resource use Energy overuse Resource 5 Insignificant C Likely Low 22
waste disposal costs and recyclingsalvage revenue
E ective 5 Insignificant C Likely Low 22
2 General
General waste management
General waste Resource use
Excessive waste generation Resource 4 Minor C Likely Medium 17
Waste segregation JSP 320 Unloading and Handling of Rubbish
Skips monitor re contamination E ective 5 Insignificant E Unlikely Low 25
3
General equipment
decommission ing
Industrial waste management (ex-asbestos) (Waste oil considered separately)
Industrial waste [local] storage and transport to site storage area
Waste disposalrecycling soilgroundwater contamination
Improper waste disposal contamination of waste
destination enforcement action Waste 3 Moderate C Likely High 11
Waste Management at APS S38 Disposal Procedure for Aerosol cans
etc S311 Storage Handling and Disposal of solvents etc amp S315 Storage Handling and Disposal of waste oil JSP 320 Unloading and
Handling of Rubbish Skips monitor to ensure clear identification
samplinganalysis if required Maintain waste disposal records (eg WTCs or
WTFs)
E ective 3 Moderate E Unlikely Low 21
4 APS post
production
Asbestos management
Asbestos removal storage and disposal
Air quality
Airborne asbestos enforcement action
Human Health 2 Major D Possible High 12
S32 Asbestos Management System amp site procedures qualified contractor S37 Guidelines for the safe use of insulation of materials containing
SMFs Asbestos Register air monitoring waste disposal records
(WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
5 General
decommission ing
Industrial Waste water (contaminate d drains and ash)
Overflows Marine pollution
Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 2 Major E Unlikely Medium 18
JSP117 Drain cleaning amp JSP228 Ash Pit cleaning block drains within work
areas that discharge directly to marine environment if practicable Emergency
Response Plan Spill response IMS water monitoring programme disposal
records (WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
13 Heath Safety
amp Security
Implement contingency plan decommissio ningdemoliti on
environmental contingencies
Environmental harm
Nil Improper process in place Procedural 2 Major E Unlikely Medium 18
Emergency response plans (reviewed annually) review for decommissioning demolition activities (after project plan
has been developed) Crisis Management Plan Review response
equipment and training Support procedures eg Incident Management System Station Instruction S17 (Spill
Response) S316 (Spill Reporting) S18 (Fire Reporting) S4G29 Hazard
inspections amp JSP385 Use of emergency boat IMS IMS
E ective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm
Alinta Energy Earlymid 2016
14 Heath Safety
amp Security
Fire on site decommissio ningdemoliti on
Contaminated fire water discharge
Water quality
Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 2 Major E Unlikely Medium 18
Contaminated drains system Emergency Response Plan Crisis
Management Plan review options re containment of fire water eg within
ABC Lake in preference to discharge to ash pond storage Maintenance
routines Station Instruction S17 (Spill Response) IMS Plant monitoring
E ective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
15 Heath Safety
amp Security
Site security decommissio ningdemoliti on
vandalism Site amenity
Site damage injury to persons Security 3 Moderate D Possible Medium 16 Site security systems Emergency
Response Plan E ective 3 Moderate E Unlikely Low 21
16 Heath Safety
amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates records
E ective 4 Minor E Unlikely Low 23
18 Heath Safety
amp Security
Land management landscaping (post decommissio ningdemoliti on)
Maintaining amp improving landscaping
Improved site amenity
Poor visual amenity soil erosion dust
Environmental Final landforms and potential
landscaping plan E ective
19 Heath Safety
amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections E ective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
20 Heath Safety
amp Security
Waste recycling area(s) decommissio ningdemoliti on
Waste management
Resource use
Improper waste disposal contamination of waste
destination enforcement action Resource 3 Moderate E Unlikely Low 21
Waste segregation (to improve recycling re-use) Waste management
Process Site Map S311 Storage Handling and Disposal of solvents etc Determine if the area is adequate for
decommissioningdemolition Establish additional areas for staging of material prior to re-use on site andor disposal
Control runoff (via containment pond(s) Site inspections routine visits by external recycling contractor S37
Guidelines for the safe use of insulation materials containing SMF
waste recycling records Waste disposal records (WTCs and WTFs)
E ective 4 Minor E Unlikely Low 23
21 Heath Safety
amp Security
Disposal of mercury-containing lighting (eg fluoros) decommissio ning
Landfill Soilgroundwater contamination
Improper waste disposal contamination of waste
destination enforcement action Resource 4 Minor E Unlikely Low 23
Waste segregation managed by appropriate waste management company Waste management
Process Site Map S38 Disposal Procedure for Aerosol cans empty
fluid drums small batteries permalubes and mercury globes
Provide labelled containers (eg 200L drums) for storage prior to removal Waste disposal records (WTCs and
WTFs)
E ective 5 Insignificant E Unlikely Low 25
22 Heath Safety
amp Security
Road traffic decommissio ningdemoliti on
Dust emissions Air quality
Limit exceedence public nuisance complaints
enforcement action Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust suppressant if required) Hi
VolDustTrak dust monitoring on site boundary
E ective 4 Minor E Unlikely Low 23
23 Environmental
Services
Environment al Compliance decommissio ningdemoliti on
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting
environmental checklist for decommissioningdemolition
Surrender of EPA Licence Site Environmental Awareness Induction S4G29 Hazard Inspections update
induction material for decommissioningdemolition Water
Sampling Program stack and ambient monitoring reporting on EMP and
reporting to EPA
E ective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environmental
Services
Site environmenta l performance monitoring decommissio ningdemoliti on
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS
Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during decommissioningdemolition (eg HI_Vol and noise) IMS regular
monitoring reports (eg weekly) Monitoring programmes and regular
reporting
E ective 3 Moderate E Unlikely Low 21
32 Environmental
Services
Discharges into the marine environment decommissio ningdemoliti on (including use or removal of bulk chemicals)
Contaminated drains SPELS
Water quality
Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 2 Major E Unlikely Medium 18
Chemical oil and fuel bunding oil separation stormwater segregation
monitoring of stormwater control systems S310 (Ferrous sulphate) S311 (Solvents) S313 (Sodium
hypochlorite) S315 (Waste oil) Pump outs Decommissioning and demolition
within containment (minimise direct discharges to marine environment)
Emergency Response Plan IMS water monitoring programme site
inspections
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
33 Environmental
Services
Site operations decommissio ningdemoliti on
Noise Nuisance
Public nuisance complaints enforcement action
Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm weekdays 8am-
6pm weekends) boundary noise monitoring
E ective 3 Moderate E Unlikely Low 21
35 Environmental
Services
Historical operations post decommissio ningdemoliti on
Discharges to soilgroundwater landfills
Soilgroundwater contamination
Soilgroundwater contamination clean up actions enforcement
actions Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular monitoring of
known groundwater contamination E ective 3 Moderate E Unlikely Low 21
36 Environmental
Services
Environment al incidents decommissio ningdemoliti on
Various Environmental harm
Nil Improper process in place Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for decommissioningdemolition activities)
IMS Incident Management System E ective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
37 Environmental
Services
Environment al awareness decommissio ningdemoliti on
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for
decommissioningdemolition activities) training and induction records (for
decommissioning demolition induction)
E ective 4 Minor E Unlikely Low 23
38 Environmental
Services
Environment al auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition
requirements (eg demolition approval conditions)
E ective 3 Moderate E Unlikely Low 21
39 Environmental
Services
Community complaints decommissio ningdemoliti on
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to complainant Complaints Register
Internal media advisor Reporting to management
E ective 3 Moderate E Unlikely Low 21
40 Environmental
Services
Annual community consultation post operation
Community perception of organisation
Non compliance
Nil Improper process in place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar E ective 3 Moderate E Unlikely Low 21
41 Environmental
Services
Potable water use decommissio ningdemoliti on
Excessive potable water use
Resource waste
Water overuse financial cost increased risk of Gulf
contamination Resource 3 Moderate E Unlikely Low 21
Re-location of services prior to demolition
E ective 4 Minor E Unlikely Low 23
44
Post production
coal stockpile area
Runoff from coal stockpile area (post operation)
Water quality (runoff)
Water quality Soilgroundwater contamination clean up actions enforcement
actions Environmental 3 Moderate C Likely High 11
Collection no direct marine discharges water monitoring programme
E ective 4 Minor E Unlikely Low 23
45
Post production
coal stockpile area
Post operation coal stockpile area
Fire (spontaneous combustion)
Air quality Fire smokeparticulate
emissions public amp personnel exposure
Fire 3 Moderate E Unlikely Low 21
Develop strategy to reduce risks of spon com In post operational coal stockpile area Monitoring by Alinta
staff IMS
E ective 4 Minor E Unlikely Low 23
46
Post production
coal conveyors
Coal conveyors
Coal dust (conveyorstransfer s)
Air quality Personnel exposure limit
exceedence public nuisance complaints enforcement action
Environmental 3 Moderate C Likely High 11 wash down of built up dust E ective 5 Insignificant E Unlikely Low 25
47 Post
production coal bins
Coal bin storage
Coal dust Air quality Personnel exposure limit
exceedence public nuisance complaints enforcement action
Environmental 3 Moderate D Possible Medium 16 Wash down of built up dust ambient
monitoring maintenance records E ective 3 Moderate E Unlikely Low 21
48
Fireexplosion Air quality
Coal dust explosion Fire 2 Major D Possible High 12
Review risk assessments for decommissioningdemolition
Emergency Response Plan IMS E ective 3 Moderate E Unlikely Low 21
49 APS post production
Coal plant washdown
Marine discharge Water quality Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 4 Minor D Possible Low 20
Containment of washwater JSP 107 Bunker Washing water monitoring
programme E ective 4 Minor E Unlikely Low 23
50 APS post production
Decommissio ningdemoliti on
Oil spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate E Unlikely Low 21
Contaminated drain system S17 Oil Spill Procedure review and enhance
containment options Emergency Response Plan IMS Maintenance
records
E ective 4 Minor E Unlikely Low 23
51 APS post production
Decommissio ningdemoliti on
Fuel oil spillage (eg gun malfunction)
Water quality Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate D Possible Medium 16
Operating controls S17 Oil Spill procedure contaminated drains Emergency Response Plan IMS
E ective 3 Moderate E Unlikely Low 21
52 APS post
production
Decommissio ningdemoliti on
Seawater flow Ecological impact (eg fauna loss)
ReductionIncrease in number amp abundance of local marine
species Environmental 3 Moderate E Unlikely Low 21
Review options for cooling water channels (eg breach wall)
E ective 3 Moderate E Unlikely Low 21
53 APS post
production
Decommissio ningdemoliti on
Contamination of condenser cooling water
Ecological impact
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major E Unlikely Medium 18
Review options for condensers (post production) visual
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
54 APS post
production
Boiler water drainage
Treated water discharge
Water quality Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 4 Minor D Possible Low 20
drainage into Ash pit Operating controls ambient water monitoring
programme E ective 4 Minor E Unlikely Low 23
59 APS post
production
Fly ashbottom ash handling systems decommissio ningdemoliti on
Spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major E Unlikely
Flush ash systems to ash storage area water monitoring programme
E ective 4 Minor E Unlikely Low 23
60 APS post
production
Fly ash re-use storage and handling area
Spillage Water quality Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 4 Minor D Possible
Empty and washdown plant Discharge to containment area
E ective 4 Minor E Unlikely Low 23
61 APS post
production
Decommissio ningdemoliti on
Contamination of flow to ash storage pond (eg oil)
Water quality
Spill entering ash disposal system discharge to Gulf
waters enforcement action Environmental 3 Moderate D Possible
Contaminated drains oil containment oil handling ash pond controls Ash
storage dam inspections Emergency Response Plan IMS inspection
records
E ective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
64 APS post
production
Oil removal Oil spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate C Likely High 11
Station Instructions S17 Oil Spill procedure S315 Storage Handling and Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil treatment plant Contaminated drain system Emergency Response Plan IMS water monitoring programme
E ective 4 Minor E Unlikely Low 23
65 APS post
production
Waste oil storage
Oil spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate C Likely High 11
Bunded storage S17 Oil Spill procedure S315 Storage Handling and Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil
treatment plant Emergency Response Plan IMS water monitoring
programme
E ective 3 Moderate E Unlikely Low 21
66 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up actions enforcement
actions Environmental 2 Major E Unlikely Medium 18
Bunded storage Emergency Response Plan Spill response IMS
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
67 APS post
production
Fire Air quality
Fire personnel exposure Fire 3 Moderate E Unlikely Low 21
Storage controls (minimise ignition sources) Emergency Response Plan
Crisis Management Plan IMS E ective 3 Moderate E Unlikely Low 21
68 APS post
production
Discharges into the marine environment
Contaminated drains SPELS
Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major D Possible High 12
Chemical oil and fuel bunding oil separation maintenance of SPEL
tanks stormwater segregation review of routine to inspect SPEL tanks
Emergency Response Plan IMS water monitoring programme site
inspections SPEL cleanout routines
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
69 APS post
production
Oil -filled electrical equipment decommissio ning and removal
Leakage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major E Unlikely Medium 18
Bunding S17 Oil Spill procedure JSP271 NPS Step-up Unit transformer amp line isolator
maintenance Emergency Response Plan Crisis Management Plan IMS monitoring of oil properties (eg PCB
content)
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
70 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up actions enforcement
actions Environmental 2 Major E Unlikely Medium 18
Containment of oil-filled equipment Emergency Response Plan
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
71 APS post
production
Fire explosion Air quality
Fire personnel exposure Fire 2 Major E Unlikely Medium 18 Permits containment E ective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
79 APS post
production
Demolition general
Lead emissions (from lead-based paints)
Personnel exposure limit exceedence public nuisance
complaints enforcement action Environmental 3 Moderate E Unlikely Low 21
lead paint testing dust control processes Maintenance routines lead
in paint testing (as required) and recorded
E ective 4 Minor E Unlikely Low 23
80 APS post
production
Refrigeration air conditioning servicing decommissio ning (as required)
Release of ozone depleting substances
Depletion of Ozone layer
Environmental harm regulatory enforcement
Environmental 3 Moderate D Possible Medium 16
ARC licensed operators ozone-depleting gas reclaim for
decommissioned equipment Audits based on ARC requirements JSP372 Air Conditioner Maintenance Records
of ozone-depleting substances reclaim etc
E ective 3 Moderate E Unlikely Low 21
81 APS post
production
Sewerage system relocation of services (caused by decommissio ning and demolition)
Sewage overflow Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 4 Minor D Possible Low 20
Response to sewer chokes JSP028 Sewage Pit pump and control repairs
Emergency Response Plan IMS E ective 4 Minor E Unlikely Low 23
82 APS post
production
PPS Seawall collapserem oval
Loss of material into marine environment
Water Quality Contaminated material entering
the Gulf damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18 Site inspections E ective 2 Major E Unlikely Medium 18
83 APS post
production
Earthworks Project-specific erosion and sedimentation
Project-specific marine contamination Soilsedimentash entering onsite
drains system discharge to Gulf waters enforcement action
Environmental
Project-specific EMP (by contractor(s)) APS Change Request (Form C1-1) Change Management
Procedure HSRP 330 erosion controls Project Management Manual Project-
specific water quality
E ective
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
96 Playford
Power Station demolition
Septic systems decommissio ning
Spillage Water quality HAZMAT scenario water soil amp groundwater contamination
clean up actions enforcement actions
Environmental 4 Minor D Possible Low 20 Arrange pump-outs E ective 4 Minor E Unlikely Low 23
97 Playford
Power Station demolition
Demolition stacks
Contaminated brick work
Incorrect disposal Improper waste disposal contamination of waste
destination enforcement action Waste 2 Major E Unlikely Medium 18
Containment of waste material Samplinganalysis to determine
disposal options Disposal records (eg WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
Appendix B
Augusta Power Stations
NPS Facility
Make Safe Manual
Revision Date Description Prepared by Reviewed by Approved by
0 29116 Initial draft
1 23216 First revision PMAPS FM
2 29216 Second revision ndash removed FM from activities
PMAPS FM
3 51016 Corrections
Distribution List
TBA
Decommissioning Manual ndash NPS
Index
1 Introduction 4
2 Closure Philosophy 4
3 Closure Strategy 4
4 Responsibilities 4
5 Titles 4
6 BoilerGenerator Unit 5
61 Turbine 5
611 Turbine Oil System 5
612 Condenser Condensate side 5
613 Condenser Seawater side 6
614 Turbine Valves 7
62 Generator 7
621 Hydrogen System 7
63 CW System 8
631 Chambers 8
632 CW pumps 9
633 CW Screens 9
634 CW Ducts 10
64 Feedwater System 10
641 LP Feedwater 10
642 Boiler feed Pumps 11
643 HP Feedwater 11
641 Feed Make-up 12
65 Boiler 12
651 Pressure parts 12
652 Furnace and Gas path 13
66 Draught Plant 14
67 Valves 15
68 Main Pipework 15
69 ACW System 16
691 ACW Seawater Side 16
692 ACW Fresh water Side 16
610 Coal System 17
6101 Train Unloading 17
6102 Bins and Bunkers 17
6103 Conveyors 18
6104 Coal Feeders 18
6105 Mills 19
611 Fuel oil system 19
6111 Fuel oil pumps 19
6112 Fuel Oil Storage 20
612 Ash System 21
6121 Sluice Pumps 21
6122 Hoppers 21
6123 Precips 22
6124 Deasher 22
Appendix B NPS Make Safe Manual Correcteddocx - 2 -
6125 Ash Pit 23
7 Electrical Systems 23
71 Control Systems 23
72 Instrumentation 24
73 DC System 24
731 220 V System 24
732 110 V System 25
733 24 V System 25
74 HV 26
741 High Voltage Disconnections 26
75 Switchboards 26
751 66 kv 26
76 Transformers 27
77 Diesel Generators 27
8 Station Auxilliaries 28
81 Aux blr 28
82 Compressed Air System 28
83 Water treatment plant 29
84 Fire protection System 29
85 Cranes and Lifts 30
86 TW and Drains system 31
87 Stack 31
9 Services 32
91 Workshops 32
92 Heavy machine and Mobile Plant 33
93 Admin 34
94 Document information and management 34
95 Security 35
10 Infrastructure of Interest 35
101 CW System 36
102 Workshops 36
103 Water storage tanks 37
104 PPS Diesel Fire pumps 37
11 Appendix 37
111 Legal and other Requirements 37
1111 Legislation and Strategies 37
1112 Alinta Policies 38
112 References 39
113 Project Plan 40
114 NPS Administration 40
1141 NPS Isolations 40
1142 NPS Closure Audit 40
115 NPS Residual Risks 41
Appendix B NPS Make Safe Manual Correcteddocx - 3 -
1 Introduction
The Northern Power Station has been operating in a flexible generating profile and has been able to respond to Market opportunities over the past few years Since the application of Scenario 1 to NPS generation profiles and significant increase in Wind and Solar generation in the SA market it has become increasingly difficult to maintain a commercial return on APS Electricity Production This has resulted in a decision by the Alinta Board to close the Power Station in Q2 of 2016
2 Closure Philosophy
The closures of the NPS site are outlined in the Lease Agreement and require Alinta to rehabilitate the APS site to its pre-developed condition The Closure Plan seeks to facilitate the removal of the Power Station infrastructure to manage all of the Asset removal with no impact on the surrounding environsrsquo meet all condition of the Lease Agreement and Legislative requirements
Alinta acknowledges that the demolition and site rehabilitation works are deemed to be lsquoHigh Riskrsquo work activities and will ensure appropriate management of this work in accordance with WHS Act 2012 and Regulations
Alinta will ensure the key principle of lsquoZero Harmrsquo will be embedded in all activities associated with the Closure Disposal and Remediation of the NPS site in accordance with the Lease Agreement
3 Closure Strategy
The focus of this manual is to outline activities to be carried out to make the plant safe for disposaldemolition by third parties
Key objectives are to remove all foreseeable hazards to the environment and salvagedemolition personnel during the remediation programme
4 Responsibilities
The `Plant managerrsquo will seek approval of Closure plans and allocate resources to implement the effective management and Make Safe activities of the NPS site prior to handover to the Facilities Manager and contractors for demolitionrehabilitation
The lsquoFacilities Managerrsquo and the Project team will communicate the sequence and timing of activities in accordance with this plan to internal stakeholders and external parties and contractors as required The FM will also lead a small team of experts to oversee the demolition and remediation activities
5 Titles
Facilities Manager - FM Operations amp Maintenance Manager ndash OMM Production Manager Augusta - PMA Scientific Services an Chemical Superintendent - SSCS
Appendix B NPS Make Safe Manual Correcteddocx - 4 -
6 BoilerGenerator Unit
61 Turbine
611 Turbine Oil System
Asset Management Strategy
Remove hazards present to the environment and personnel from the Lube oil systems during decommissioning
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommission operation
Item Plant Description Proposed Actions Responsibility
1 Lube Oil System Drain all lube oil and seal oil to main tank OMM
2 Lube Oil Tank
Monitor lube oil tank for potential leaks until handover to FM and contactors for final decommissioing OMM
3 Oil pumps Isolate electrical supplies to Oil Pumps OMM
4 Seal oil tank Drain the Seal Oil system OMM
5 Seal oil pumps Isolate electrical supplies to Seal Oil Pumps OMM
612 Condenser Condensate side
Asset Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 5 -
Eliminate the possibility of toxic gases andor pressure build up in the system during decommissioning
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Item Plant Description Proposed Actions Responsibility
Condenser and CEPrsquos
Open all drain vvrsquos and open up condenser doors OMMOMM
CEP MotorPump Drain motor and Pump oil OMM
613 Condenser Seawater side
Asset Management Strategy Minimise build-up of toxic gases from decomposed marine growth in the Condenser
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Item Plant Description Proposed Actions Responsibility
1 Condenser Seawater side
Open all condenser drain valves once the condenser is isolated from the CW chamber OMM
Gas test for toxic gases OMM
Appendix B NPS Make Safe Manual Correcteddocx - 6 -
614 Turbine Valves
Asset Management Strategy Minimise hazards to the environment and personnel in the Valve Control oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
ITEM Plant Description Proposed Actions Responsibility
1 Major turbine vvrsquos Isolate electrical supplies to Valves OMM
11 Drain control oil actuators and pipework OMM
2 HP and LP By-pass vvrsquos
Decommission and drain Control stations and accumulators OMM
62 Generator
521 Generator Rotor
Asset Management Strategy Removing hazards to the environment and personnel from the Generators
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Item Plant Description Proposed Actions Responsibility
Generator Casing
Isolate hydrogen from generator case and purge casing OMM
621 Hydrogen System
Asset Management Strategy Shutdown Hydrogen system to prevent any risk of hydrogen fuelled fire or explosion
Appendix B NPS Make Safe Manual Correcteddocx - 7 -
Controls The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 Hydrogen System
Shut down isolate and purge Hydrogen system OMMSSCS
2 Hydrogen System
Remove all Hydrogen supplies from site once second Unit is OOS OMM
63 CW System
631 Chambers
Asset Management Strategy Isolate the inletoutlet channel water from the Condenser basements
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
CW pumps
Fit blanks to the CW pump discharge pipe to isolate the chamber from the Condenser basement
OMM
CW pump Drain Oil from pump OMM
Taprogge recirc pumps Drain oil from pumps OMM
Dosing pumps (hypo chlorFE chlor Drain oil from pumps OMM
Chlorine Plant Shut down and flush chemicals from lines SSCS
Appendix B NPS Make Safe Manual Correcteddocx - 8 -
Chlorine plant pipework Drain and dry store SSCS
Electrolysers Drain and dry store SSCS
Chlorine storage tank Drain and dry store SSCS
632 CW pumps
Asset Management Strategy Remove environmental contaminants from CW pumps
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
5321
CW pumps Drain oil from CW pp bearings OMM
CW Pump Motors Isolate motor heaters OMM
Empty chamber remove CW pumps and blank off CW pump discharge pipe OMM
633 CW Screens
Asset Management Strategy Remove environmental contaminants from CW screens
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Appendix B NPS Make Safe Manual Correcteddocx - 9 -
Plant Description Proposed Actions Responsibility
5331
CW Screens Drain oil from CW screen gearboxes not required by third party OMM
634 CW Ducts
Asset Management Strategy Minimise build-up of toxic gases from decomposed marine growth in the Condenser
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommission operation
Plant Description Proposed Actions Responsibility
5331
CW Ducts Isolate from CW chamber and pump dry OMM
64 Feedwater System
641 LP Feedwater
Asset Management Strategy Eliminate the possibility of gases andor pressure build-up in the system
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
LP feedheaters Open drains and doors OMM
GS Condenser Open drains and doors OMM
Appendix B NPS Make Safe Manual Correcteddocx - 10 -
LP Ejector Open drains and doors OMM
Deaerator and DAFT Open drains and doors OMM
DA off load circ pump Drain oil from pump OMM
Ammonia dosing pump Drain oil from pump OMM
642 Boiler feed Pumps
Asset Management Strategy Remove any hazards to the environment or personnel in the Boiler Feed pumps
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
1
Boiler feed pp amp DAFT header Isolate and drain system OMM
Drain oil from BFPrsquos and GTDrsquos OMM
643 HP Feedwater
Asset Management Strategy Minimise possibility of gases andor pressure build up in the system
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Appendix B NPS Make Safe Manual Correcteddocx - 11 -
Plant Description Proposed Actions Responsibility
HP6 amp 7 Drain HP Heater shell and store dry OMM
Drain Feedwater side and store dry OMM
641 Feed Make-up
Asset Management Strategy
Drain systems to minimise internal corrosion
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 Feedwater make up heater Drain and store dry OMM
2 Hot Condesate Storage tank Drain and store dry OMM
3 RFW Tanks Drain and store dry OMM
65 Boiler
651 Pressure parts
Asset Management Strategy Minimise possibility of gases andor pressure build up in the system
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Appendix B NPS Make Safe Manual Correcteddocx - 12 -
Plant Description Proposed Actions Responsibility
Boiler Tubes amp Superheaters
Boilers to be removed from service amp drained hot OMM
Open up all drains and vents OMM
Valves - general Drain oil from actuators OMM
Valves - Blr safety vvrsquos Relieve spring tension OMM
Blowdown vessels Ensure drain vvs are open OMM
652 Furnace and Gas path
Asset Management Strategy
To ensure furnace is clear of ashslag deposits to minimise the potential for corrosion and environmental contamination during the Care period
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1
Furnace super htr area and penthouse
Gas path to be washed including penthouse All dead spaces including inside nose and either side of boiler throat all ash hoppers to be cleaned amp left dry OMM
2 Water walls Washed out after shut down and dry store OMM
3 Economiser Washed out after shut down and dry store OMM
Appendix B NPS Make Safe Manual Correcteddocx - 13 -
66 Draught Plant
Asset Management Strategy Minimise any residual hazards remaining in the Draught Plant
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
Air heaters WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
ID fans WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
PA fans WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
SA fan WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
GR fans WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
Appendix B NPS Make Safe Manual Correcteddocx - 14 -
ID PA SA GR Motors Disconnect motor heater power supplies OMM
DuctsDampers WashedVaccuumed out OMM
Drain oil from damperactuator gearboxes OMM
67 Valves
Asset Management Strategy Minimise any residual hazards or kinetic energy remaining in the valves on site
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Selected safety valves
Relieve all spring tensions based on individual risk assesments OMM
68 Main Pipework
Asset Management Strategy Minimise any residual hazards remaining in the Pipework
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Main pipework from Boiler to Turbine Open all vents and drains OMM
Appendix B NPS Make Safe Manual Correcteddocx - 15 -
69 ACW System
691 ACW Seawater Side
Asset Management Strategy Minimise build-up of toxic gases from decomposing marine growth in the ACW pipework and heat exchangers and remove environmental hazards
Controls The following controls have been identified to eliminate the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Heat exchangers Isolate and drain heaters of seawater OMM
ACW pumps Drain oil from the bearings OMM
ACW system Open all drains and vents OMM
Test for toxic gases OMMSSCS
692 ACW Fresh water Side
Asset Management Strategy Remove environmental hazards from the ACW system
Controls The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Coolers Drain all ACW coolers OMM
Pumps Drain oil from pumps OMM
Appendix B NPS Make Safe Manual Correcteddocx - 16 -
610 Coal System
6101 Train Unloading
Asset Management Strategy To minimise environmental hazards
Controls
The following controls have been identified to minimise the hazards to the environment
Plant Description Proposed Actions Responsibility
Train unloader WashVaccuum all hoppers feeders and conveyor systems OMM
Unloader walls
Monitor water level in Unloader pitValve in wall to be opened periodically to relieve water pressure on walls Note Needs to be condition included in transfer agreement OMM
Unloader sump
Unloader sump pump will need to be maintained Note Once supply to Unloader is decommissioned sump pump will not operate OMM
6102 Bins and Bunkers
Asset Management Strategy To minimise environmental hazards
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Bins Emptied and washed out OMM
Ploughs Park ploughs in bypass position and wash down OMM
Appendix B NPS Make Safe Manual Correcteddocx - 17 -
Drain gearbox oils OMM
Trippers Wash down trippers OMM
Drain gearbox oils OMM
Bunkers Empty and Wash out bunkers OMM
6103 Conveyors
Asset Management Strategy Remove environmental kinetic energy and fire hazards from the coal system
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Conveyors Shutdown Coal conveyor systems and wash down OMM
Conveyors Drain oil from gearboxes OMM
Release belt tensioners and lower weights to the ground and secure OMM
Coal line Fire System
Maintain fire detection and deluge systems until Make safe is complete in accordance with OEM OMM
Coal line Fire System
Maintain fire detection and deluge systems in accordance with OEM OMM
6104 Coal Feeders
Asset Management Strategy To minimise environmental hazards
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 18 -
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Mill feeders Emptied out on shutdown and washed out for dry store OMM
Mill feeders Drain gearbox oils OMM
6105 Mills
Asset Management Strategy Remove environmental contaminants and kinetic energy from the coal Mills
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Mills Empty out Mills and wash out for dry store OMM
Mills
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
Release mill roller spring tension OMM
611 Fuel oil system
6111 Fuel oil pumps
Asset Management Strategy Remove environmental contaminants from Fuel oil system
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Appendix B NPS Make Safe Manual Correcteddocx - 19 -
Plant Description Proposed Actions Responsibility
Oil guns
Remove guns and store in Mills Workshop with supply lines capped and nozzles plugged OMM
FO heaters Drain fuel oil heaters OMM
FO pipework Drain fuel oil pipework OMM
FO transfer pps Drain bearing oil OMM
6112 Fuel Oil Storage
Asset Management Strategy Remove environmental contaminants from Fuel oil system
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
FO storage Run stocks of FO to minimum level PMA
Monitor FO storage tanks and distribution system for potential leaks prior to handover to FM for contactor final decommissioning OMM
FO Service Tank Run stocks of FO to minimum level PMA
Clean storage tanks of residual oil to eliminate potential leakrsquos to the environment during storage and de-commissioning Inspect internally prior to removal FM
Appendix B NPS Make Safe Manual Correcteddocx - 20 -
612 Ash System
6121 Sluice Pumps
Asset Management Strategy
Drain systems to minimise internal corrosion and marine growth
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 HP amp LP Sluice pump pipework Drain all pipework and dry store OMM
2 LP Sluice Pumps Isolate pumps OMM
3 HP Sluice pumps Drain pump bodies and dry store OMM
6122 Hoppers
Asset Management Strategy
Reduce the risk of ash hang ups and internal hopper corrosion during an Care period
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 Third pass Wash out hoppers after shutdown and dry store Remove E vvrsquos OMM
2 Primary Air Heater Hoppers
Wash out hoppers after shutdown and dry store Remove E vvrsquos OMM
3 Secondary Air Heater Hoppers
Wash out hoppers after shutdown and dry store Remove e vvrsquos OMM
Appendix B NPS Make Safe Manual Correcteddocx - 21 -
4 Precip Hoppers
Remove E Valves Wash down Precip and Hoppers dry out with hopper heater for 24 hours and isolate heaters and dry store OMM
5 Ash Transfer Plant
Empty and wash out vessels dry store Isolate all Electrical and Air Supplies to Ash Transfer plant OMM
6 Ash Silo Empty and wash out vessels dry store Isolate all electrical supplies to Silo OMM
6123 Precips
Asset Management Strategy Remove environmental contaminants from Precipitators
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Internals Full wash of Precip internals Open doors and allow to dry OMM
Rappers Drain oil from rapper gearboxes OMM
6124 Deasher
Asset Management Strategy Remove environmental contaminants from Deashers
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
De-asher
Remove the de-asher to the maintenance position and wash out for dry store Barricade bottom of boiler to restrict access while de-asher removed OMM
Appendix B NPS Make Safe Manual Correcteddocx - 22 -
7
Crusher
Wash out ash crusher
OMM
De-asher Drain oil from hydraulic units OMM
Crusher Drain oil from crusher gearbox OMM
6125 Ash Pit
Asset Management Strategy
Maintain storm water control for the duration of decommissioning
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Ash pit
Install a suitably sized submersible pump connected to one of the Ash Pond discharge pipes to cater for rain events prior to handover to FM and contractors for final decommissioning
OMM
Electrical Systems
71 Control Systems
Asset Management Strategy Minimise the risk of residual power sources associated with the control systems
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Appendix B NPS Make Safe Manual Correcteddocx - 23 -
Plant Description Proposed Actions Responsibility
FCS Battery systems Remove low voltage DC battery packs OMM
Fire Safety System Remove DC inverter OMM
72 Instrumentation
Asset Management Strategy Eliminate the risk of electric shock from residual power sources
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Instruments o2 press temp hydrogen analysers cameras oil flows water quality level
Remove tag with KKS amp Physical location and store in Instrument Workshop
OMM
AC Supply to FCS stations
Isolate AC supply to FCS stations
OMM
Inverter Supply Isolate and decommission Inverter supplies to Control System
OMM
73 DC System
731 220 V System
Asset Management Strategy Minimise the risk of DC Arc flash and LeadAcid hazards
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 24 -
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
220V Batt Charger and bank
Decommission battery charger and remove batteries Wash down battery stands and floors to remove residual sulphuric hazards OMM
732 110 V System
Asset Management Strategy Minimise the risk of DC Arc flash andndash LeadAcid hazards
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
110V Batt Charger and bank
Monitor 220v amp 110v battery systems until handover to FM and contactors for final decommissioning To be included in contractor agreement (Decommission battery charger and remove batteries once 275kV lines are decommissioned (line protection) Wash down battery stands and floors to remove residual sulphuric hazards) OMM
733 24 V System
Asset Management Strategy Minimise the risk of DC Arc flash andndash LeadAcid hazards
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
24V Batt charger and bank
Decommission battery charger and remove batteries Wash down battery stands and floors to
OMM
Appendix B NPS Make Safe Manual Correcteddocx - 25 -
I I
remove residual sulphuric hazards
74 HV
741 High Voltage Disconnections
Asset Management Strategy Apply a perimeter isolation to the 275132kV switchyards to Eliminate risk of Electric Shock by disconnecting all HV supplies at major terminal points in switchyards Eliminate the possibility of a transformer oil spill to the surrounding environment
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
275kV supply
Maintain protection systems for 275kV system until handover to FM to arrange disconnection agreement with Electrenet OMM
132kV Disconnect from House transformer OMM
75 Switchboards
751 66 kv
Asset Management Strategy To remove any kinetic energy stored in the 66kV switchgear
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Appendix B NPS Make Safe Manual Correcteddocx - 26 -
66 Breakers Rack out breakers and discharge spring tension OMM
76 Transformers
Asset Management Strategy
Eliminate the possibility of a transformer oil spill to the surrounding environment
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
275kV Transformer
Isolate 275kV at connection point at switchyard
OMM
Monitor all transformers for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Drain all transformer oil and box up transformer case )
OMM
132kV Transformer (House)
Monitor all transformers for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Drain all transformer oil and box up transformer case )
OMM
77 Diesel Generators
Asset Management Strategy Remove the Diesel Generators from service
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Appendix B NPS Make Safe Manual Correcteddocx - 27 -
8
Plant Description Proposed Actions Responsibility
Diesel Generators
Monitor Diesel Gensets for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Remove Gensets from service) OMM
Station Auxilliaries
81 Aux blr
Asset Management Strategy Remove any remaining residual contaminants
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Aux Boiler Fuel Oil Tank
Monitor Aux Boiler FO system for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Drain Aux Boiler FO tank) OMM
82 Compressed Air System
Asset Management Strategy Shut down assets and depressurise the system and remove environmental contaminants
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 28 -
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Air compressors
Monitor Compressors for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Decommission compressors and separators) FM
83 Water treatment plant
Asset Management Strategy Remove any remaining residual contaminants Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Reverse Osmosis Plant
Decommission and store in accordance with OEM recommendation
OMMSSCS
Water treatment Plant
Drain all vessels remove all resins chemical and dispose of Dry store all tanks and vessels
Remove all Resin and put to land fill OMMSSCS
84 Fire protection System
Asset Management Strategy
Decommission fire protection system and remove environmental contaminants
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Appendix B NPS Make Safe Manual Correcteddocx - 29 -
I I
Plant Description Proposed Actions Responsibility
Fire feedwater Isolate town water to fire pumps and drain all mainfolds OMM
Fire Deluge System
Drain fire system at fire pump discharge and at each deluge system OMM
Diesel Fire Pump Decommission drain fuel engine oil and coolant OMM
Electric fire pumps Isolate and decommission OMM
Fire detection system
Isolate and decommission fire detection system including the removal of DCP lead acid batteries OMM
Fire Halon systems
Decommission and remove Halon cyclinders from control room under floor system OMM
Vesda detection system Decommission and remove backup batteries OMM
Portable fire extinguishers
Monitormaintain all fire extinguishers until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Remove all fire extinguishers for site and dispose of) OMM
85 Cranes and Lifts
Asset Management Strategy Decommission and de-register lifts and cranes in preparation for demolition
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Appendix B NPS Make Safe Manual Correcteddocx - 30 -
All Lifts Maintain operation of Turbine Hall and Boiler lifts until handover to FM and contactors for decommissioning
To be included in contractor agreement All lifts to be decommissioned OMM
NPS Cranes Monitor all cranes and hoists for potential oil leaks prior to handover to FM and contractors for decommissioning To be included in contractor agreement (Drain oil from all cranes and hoist gearboxes and decommision) OMM
86 TW and Drains system
Asset Management Strategy
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Contaminated Drains Pit and associated pumps
Maintain in normal operation This ensures any run off from rain event do not carry any pollutants into the surrounding environment without being removed in the contaminated drains pits until handover to FM and contractors for decommissioning Note Once supply to CW switch room is decommissioned the oil skimmer in the sump will no longer operate To be included in contractor agreement (Decommission the contaminated drains system and settling pond) OMM
Condenser Sumps
Installation of temporary submersibles needed to maintain sumps dry if required Note Once Turbine 415V boards are decommissioned sump pumps will no longer operate OMM
87 Stack
Asset Management Strategy
Ensure we meet aviation standards of Stack lighting after Closure
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 31 -
9
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Stack
Provide alternative lighting of the stack to comply with CASA minimum standard for Aviation requirements OMM
Services
91 Workshops
Asset Management Strategy Minimise any hazards that may impact on demolition crews and chemicalgas hazards to surrounding environs
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Tubemakers Storage shed
Inventory and remove all plant tools and equipment for disposal
Salvage all materials held in store
Review and approve contractor demolition plan including sewage system OMM
Appendix B NPS Make Safe Manual Correcteddocx - 32 -
decommissioning and site rehabilitation
Garage Workshop
Decommission all Electrical supplies town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
OMM
Mitsubishi Spares Shed
Decommission all Electrical supplies town water systems to store
Remove all stock and spares for disposal
OMM
Cylinder Store Compound
Remove all stock of gas cylinders and return to suppliers
OMM
Coal Line and Electrical Workshop
Maintain Electrical supplies town water and black water systems to workshop for third party transfer
Inventory and remove all plant tools and equipment for disposal
OMM
Mills Workshop
Decommission all Electrical supplies town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
OMM
Plant Workshop
Decommission all Electrical supplies town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
OMM
Plant Tools and equipment disposal
Commission an auction house to promote and conduct a plant tools and equipment disposal on site on behalf of Alinta OMM
Residual plant tools and equipment
Non disposlable item to be scrapped and removed from site by merchant OMM
92 Heavy machine and Mobile Plant
Appendix B NPS Make Safe Manual Correcteddocx - 33 -
Asset Management Strategy Minimise any hazards that may impact on demolition crews
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Heavy Plant
Inventory heavy plant items and place on consignment with Heavy Machinery reseller This to be done in parallel with Dozing operations on the residual coal stocks held on APS stockpile OMM
Mobile Plant Inventory mobile plant items and place on consignment with Heavy Machinery reseller OMM
Light Vehicle
Develop a light vehicle return strategy as vehicle leases expire sufficient vehicle to conduct Care to Closure activities return all vehicles at the commencement of demolition phase OMM
93 Admin
Asset Management Strategy Minimise any hazards that may impact on demolition crews
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
PA system throughout the workshop offices station and general site
Required for site communications emergency notices and evacuations by skeleton staff
OMM
94 Document information and management
Asset Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 34 -
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Documents Determine what data is required to be stored OMM
Determine where the data will be stored OMM
Historical interest data
Determine who would be interested in taking this PMAPS
Pressure Vessel registration
Advise Worksafe SA when plant is decommissioned OMM
95 Security
Asset Management Strategy To continue site security until such time as Third parties take control
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Security Maintain Security contract OMM
10 Infrastructure of Interest
The following infrastructure and plant has been identified as possibly of Interest to Third Party users after Closure
Appendix B NPS Make Safe Manual Correcteddocx - 35 -
101 CW System
Asset Management Strategy To identify the system requirements of the CW plant for continued use by third party
Assumptions Third party will own operate and maintain CW infrastructure including power supplies and EPA
license requirements
Plant Description Consequential Plant Responsibility
1
Sluice ACW and Sundrop pumps
Power supply ndash 66kV415v transformer will be decommissioned as part of the demolition process Alternative power supply will need to be established to continue operation
OMMThird Party
2
Contaminated drains system
To ensure any contaminent spillage is prevented from entering the surrounding environs The transfer pump pit will remain connected to the 11kV ring feed however the transfer pumps at the Contaminated drains settling pond is currently fed from the town water switch room which will be decommissioned Alternative power supply will need to be established at the settling pond for this system to remain operational
OMMThird Party
102 Workshops
Asset Management Strategy To identify the system requirements of the Workshops at NPS for continued use by third
party
Assumptions Third party will own operate and maintain Workshop buildings including power supplies Town
water and Black water system
Plant Description Consequential Plant Responsibility
Workshops
Town water reticulation will need to be dispersed between third parties with separation of metering points Black water system backbone will need to be retained Existing Power supplies may be disconnected during demolition 11kV 415v pad mount will
OMMThird Party
Appendix B NPS Make Safe Manual Correcteddocx - 36 -
need to be installed at the WTP to supply the Mech workshop Existing 11kV 415v pad mount power supply to Electrical workshop should remain if required
103 Water storage tanks
Asset Management Strategy To identify the functionality requirements of the Town Water storage tanks for continued use
by third party
Assumptions Third party will own operate and maintain Town Water storage tanks including water connection
and agreement with SA Water
Plant Description Consequential Plant Responsibility
Town water storage tanks
Town water supply from SA Water Alternative power supply for TW switchroom and associated pumps will be required to keep this plant operational
OMMThird Party
104 PPS Diesel Fire pumps
Asset Management Strategy To identify the functionality requirements of the PPS Fire diesel pumps for continued use by
third party
Assumptions Third party will own operate and maintain PPS Fire Diesel pumps including power supplies and
EPA license requirements
Plant Description Consequential Plant Responsibility
PPS Fire Diesel pumps
Diesel pumps are a standalone system and can be plumbed to suit delivery where required
OMMThird Party
11 Appendix
111 Legal and other Requirements
1111 Legislation and Strategies
Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 37 -
Comply with all Legislation and Lease agreements during the Closureremediation process
Controls
Item Proposed Actions Responsibility
1 NorthernPlayford Generating Plant Lease PMAPS
2 NorthernPlayford Land Lease PMAPS
3 Environmental Compliance Agreement PMAPS
4 SA Generation Licence PMAPS
5 EPA Licences PMAPS
6 AEMO Certification PMAPS
7 Pressure Vessel Registrations PMAPS
8 Crane Registrations PMAPS
9 WHS Act amp Regulations PMAPS
10 Code of Practice ndash Demolition Work PMAPS
1112 Alinta Policies
Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 38 -
Controls
Item Description Proposed Actions Responsibility
1
Compliance Guideline HSSE-019 Demolition and Decommissioning Adhere to Alinta Policy PMAPS
112 References
Item Document Responsibility
1 Care to Closure Risk Assessment PMAPS
2 NPS Care to Closure Plan PMAPS
3 PPS Hibernation Manual PMAPS
4 PPS Closure Manual PMAPS
5 NPS Lube schedules PMAPS
6 Inspection and Audit sheet PMAPS
7 APS Sewerage and Septic systems (Sharepoint) PMAPS
8 APS Contaminated Drains system (Sharepoint) PMAPS
9 APS Transmission line layout (Sharepoint) PMAPS
Appendix B NPS Make Safe Manual Correcteddocx - 39 -
113 Project Plan
114 NPS Administration
1141 NPS Isolations
Asset Management Strategy
To wind back plant and system isolations to Perimeter isolationsdisconnections
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Item Proposed Actions Responsibility
Resource plan Track actions against plan OMM
1142 NPS Closure Audit
Asset Management Strategy
To provide an Auditable record of controls put in place to render the site as safe as reasonably practical for salvagedemolition
Controls
The following Controls have been identified to
Item Proposed Actions Responsibility
1 Raise work orders for each control action OMM
Appendix B NPS Make Safe Manual Correcteddocx - 40 -
2 Complete Inspection amp Audit sheets as each system is made safe OMM
115 NPS Residual Risks
Management Strategy
To highlight to the salvagedemolition third parties any Residual risks remaining that are beyond the Alinta Energy Closure workscope
Item Residual Risks Responsibility
Stack Aviation lighting requirements will need to be met until the stack is demolished PMAPS
Boiler structure Aviation lighting requirements will need to be met until the boiler is demolished PMAPS
Boiler burners Asbestos sheet gaskets exists between each burner and the boiler front (48 in total) PMAPS
66 Breakers Contain asbestos backing boards PMAPS
Air Heaters Bearing oil baths will contain oil PMAPS
Mill Spring pits The Gerb springs supporting the Mills contain a thick composite oil in the damper packs PMAPS
Underground Fuel tanks
There is an underground petrol tank at the SE corner of the NPS Store PMAPS
Transformers Some of the 415V transformers contain Freon gas PMAPS
Fire deluge system
There are some mercury switches used in the Fire deluge systems PMAPS
Appendix B NPS Make Safe Manual Correcteddocx - 41 -
Generator circuit breakers The generator CBrsquos contain SF6 gas PMAPS
Appendix B NPS Make Safe Manual Correcteddocx - 42 -
Appendix C
alintaSFE everyone every day every job Zero Harm
Augusta Power Station
Playford Facility
Closure Manual
Revision Date Description Prepared by Reviewed by Approved by
A 1915 First Draft
B 51016 Corrections
C
Distribution List
Augusta Management Team
Closure Manual ndash PPS
Index
1 Introduction 3
2 Closure Philosophy 3
3 Closure Strategy 3
4 Responsibilities 3
5 PPS Closure 4
51 Turbine Generator 4
511 Turbine 4
512 Condenser Sea Side 5
513 Condenser Condensate Side 5
514 Turbine Valves 6
515 Generator 6
516 Turbine Auxiliaries 7
52 Boiler 8
521 Boiler Systems 8
522 Feedwater Systems 9
523 Boiler Feed Pumps (BFP) 9
524 Draught Plant 10
53 Station Auxiliaries 11
531 Electrical 11
532 Coal Systems 17
533 Fuel Oil 19
534 Ash Systems 20
535 Compressed Air 22
536 CW Systems 22
537 Water Treatment Plant 24
538 Town Water and Drains 25
539 Fire Protection system 25
5310 Workshops and Offices 26
6 Appendix 27
61 Legal and other Requirements 28
611 Legislation and Licences 28
612 Alinta Policies 29
613 References 29
62 Project Plan 29
63 PPS Administration 29
631 PPS Registered Plant 29
632 PPS Isolations 30
633 Closure Audit 30
7 PPS Residual Risks 31
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 2 -
1 Introduction
The Playford Power Station began operation in the early 1960rsquos as a Base load Station through to the late 1980rsquos It then began operating as reserve generation for peak demand periods through to 2012 PPS was then placed into Hibernation on a 90 day recall With the continuing market supply from Wind and Solar generation it was announced in 2015 that Playford along with NPS is no longer required and will be Shutdown and Decommissioned and the site Remediated in line with the Generating Lease Agreement
2 Closure Philosophy
The Closure plan seeks to facilitate the removal of the Power Station infrastructure to manage all of the Asset removal with no impact on the surrounding environsrsquo meet all condition of the Lease Agreement and Legislative requirements
Alinta acknowledges that the demolition and site rehabilitation works are deemed to be lsquoHigh Riskrsquo work activities and will ensure appropriate management of this work in accordance with WHS Act 2012 and Regulations
Alinta will ensure the key principle of lsquoZero Harmrsquo will be embedded in all activities associated with the Closure Disposal and Remediation of the APS site in accordance with the Lease Agreement
3 Closure Strategy
The Closure Strategy will be to remove all foreseeable hazards remaining at PPS to make the plant Safe to the environment and SalvageDemolition personnel during the remediation programme by completing the activities outlined in this document
4 Responsibilities
The lsquoFacilities Managerrsquo will seek approval of Closure plans and allocate resources to implement the effective management and closure of the PPS site to meet the lease agreement Communicate the sequence and timing of activities in accordance with this plan to internal stakeholders and external parties as required
The lsquoFacilities Remediation Project Managerrsquo will consult and liaise with the Demolition and Remediation contractors on site and will be supported by a number of Technical Specialists and Contract Administrators
The `Facilities Safety and Environment Managerrsquo will develop the framework for `High Riskrsquo demolition works and ensure subcontractors comply with all legislative requirements associated with the remediation works
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 3 -
5 PPS Closure
51 Turbine Generator
511 Turbine
5111 Lube Oil Systems
Asset Management Strategy Minimise residual hazards remaining in the Lube oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
TG Lube Oil systems
Plant Description Proposed Actions Responsibility
Main Oil tank InspectRemove any residual oil from the main oil tanks
Lube oil pipework
InspectRemove any residual oil from the lube oil pipework system
Oil centrifuges Drain gearbox oil and empty oil from bowl
5112 Seal Oil Systems
Asset Management Strategy
Minimise residual hazards remaining in the Seal oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Seal Oil system
Plant Description Proposed Actions Responsibility
Seal Oil tank InspectRemove any residual oil from the Seal oil tanks
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 4 -
Seal oil pipework
InspectRemove any residual oil from the Seal oil
pipework system
Seal oil vac pprsquos Drain oil from pprsquos
512 Condenser Sea Side Asset Management Strategy
Minimise build up of toxic gases from decomposed marine growth in the Condenser
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Condenser water boxes Open doors and drains on condensers and air dry
Check for gases in water boxes prior to demolition
513 Condenser Condensate Side Asset Management Strategy
Minimise the risk of build up of gases in this space
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 5 -
Plant Description Proposed Actions Responsibility
EE Condensers Open up condensate drains
Stal condensers Open up drains
Condensate gases Check for gases in condensate space prior to demolition
514 Turbine Valves
Asset Management Strategy
Minimise residual hazards remaining in the Valve Control oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Turbine Stop valves Drain all control oil
Turbine Throttle valves Drain all control oil
515 Generator Asset Management Strategy
Prepare Generators for demolition
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 6 -
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Generator Remove all access doors and open to atmosphere
Check for gases in generator space prior to demolition
Exciter breaker Release kinetic energy in exciter breaker
516 Turbine Auxiliaries Asset Management Strategy
Eliminate the possibility of gases andor pressure build up in the system during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
EE DC Htr and DC htr ext pps Open all drains and vents
Drain oil from pp bearings
Shunt DA pprsquos Drain oil from bearings
EE LP1 htr Open all drains and vents
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 7 -
Stal Gland leakage condensers DC Htr and DC htr ext pps Open all drains and vents
Stal Gland steam cooler Open all drains and vents
Stal Ejector condensers Open all drains and vents
Stal Gland leakage condensers and clean drains tank Open all drains and vents
Stal Auxillary steam vessels Open all drains and vents
All Vessels Check for gases in all Auxiliary vessel spaces prior to demolition
52 Boiler
521 Boiler Systems
5211 Pressure Parts
Asset Management Strategy
Minimise possibility of gases andor pressure build up in the system during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Boiler Tubes and Drums
Open top and bottom drum doors and open all vents and drains
Check for gases in all spaces prior to demolition
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 8 -
Sootblowers Drain sootblower gearbox oil
522 Feedwater Systems
5221 HP Heaters
Asset Management Strategy
Minimise possibility of gases andor pressure build up in the system during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
HP heaters Remove loop pipes from heaters
Open body drains and vents
Check for gases in hp heater space prior to demolition
Boiler dosing pprsquos Drain oil from pprsquos
523 Boiler Feed Pumps (BFP)
Asset Management Strategy
Minimise any residual hazards remaining in the Boiler Feed pumps
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 9 -
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Boiler feed pumps - Mather amp Platt Drain bearing oil reservoirs
Boiler feed pumps - Sulzer Drain bearing oil reservoirs
Feed pump headers ndash suction and discharge Open all drains and vents and sectionalising valves
Check for gases in all feed water header spaces prior to demolition
Steam driven feed pp Drain oil from bearings
524 Draught Plant
Asset Management Strategy
Minimise any residual hazards remaining in the Draught Plant
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
FD Fans Drain oil from FD fan bearings on Blr 12 amp 3 Note 45 amp 6 have greased bearings
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 10 -
53 Station Auxiliaries
531 Electrical
5311 DC Systems
Asset Management Strategy
Minimise the risk of DC ndash LeadAcid hazards to demolition crew
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
DC batteries A Station 110 volt Remove all LeadAcid batteries
DC batteries B Station 110 volt Remove all LeadAcid batteries
DC batteries B Station UPS Remove all LeadAcid batteries
Diesel generator 24 volt batteries two banks Remove all LeadAcid batteries
Diesel 24 volt Emergency Start Relay batteries Remove all LeadAcid batteries
Diesel Fire Pump Batteries Remove all LeadAcid batteries
DC batteries Station Fire System Remove all LeadAcid batteries
Terminal Room Remove all LeadAcid batteries
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 11 -
Decommission and remove all 132kV line protection devices Electranet
Diesel generator Drain oil and coolant
5312 Switchboards ndash 33kV amp 415V
Asset Management Strategy
To remove any kinetic energy stored in the 33kV switchgear and to supply an alternative power supply for limited emergency lighting and dewatering
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
33kV Breakers Discharge all spring loaded devices This will be done by operators when isolating the station PMA
5313 Power Transformers
Asset Management Strategy
Apply a perimeter isolation to the 275132kV AampB station switchyards to Eliminate risk of Electric Shock by disconnecting all HV supplies at major terminal points in A amp B station switchyards Eliminate the possibility of a transformer oil spill to the surrounding environment
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 12 -
275 kV step up tfrsquos Disconnect step up transformer B1 at 275kV droppers Comp
Disconnect step up transformer B2 at 275kV droppers Comp
Disconnect step up transformer B3 at 275kV droppers Comp
Disconnect step up transformer at B4 275kV droppers Comp
275kV Nth tie transformer disconnect from 275kV droppers
132kV System Disconnect points at isolators of AS2 AS4 amp disconnect cables at 11kV tertiary terminals at Nth tie transformer De-energised
33 kV to 415 volt transformers Drain all transformers and dispose of transformer oil
275 kV step up tfrsquos Drain all transformers and dispose of transformer oil
13211kV transformers
Drain transformers in A Stn switchyard (2 x 13211kV and old spare near canteen)
5314 DCSControl SystemsAlarms
Asset Management Strategy
Minimise the risk of residual power sources
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Processors Low voltage batteries to be removed
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 13 -
DC inverter batteries Remove batteries
5315 Actuators
Asset Management Strategy
Minimise risk of oil spill to environment during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Drain actuators of oil
5316 BH1 amp Compressor Equipment
Asset Management Strategy
Minimise any pressure hazards in the compressor system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
BH1 Compressor Shutdown compressor and drain Air recievers
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 14 -
Breaker Unplug from breaker housing
5317 11Kv Ring Main Equipment
Asset Management Strategy
Remove environmental contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Stator 11kV switchgear Drain oil
11kV transformers Drain oil
5318 Lifts amp Cranes
Asset Management Strategy
Decommission and de-register lifts and cranes in preparation for demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
B stn Nth and Sth lifts Deregistration
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 15 -
Degas air conditioners
Drain gearbox oil
Drain gearbox oil
PPS Cranes Drain oil from gearboxes
De-register cranes
5319 Public Address System
Asset Management Strategy
Isolate from NPS system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
PA system Disconnect PA system
53110 BE09BE10 33kV Switchgear
Asset Management Strategy
Remove environmental contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 16 -
Plant Description Proposed Actions Responsibility
Stator 33kV switchgear Drain oil
33kV transformers Drain oil
53111 132Kv System
Asset Management Strategy
To remove the DC power supplies to the 132kV protection equipment located in the A stn terminal room
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
132kV protection equipment Relocated by Electranet to a suitable location Electranet
132kV System Disconnect points at isolators of AS2 AS4 amp disconnect cables at 11kV tertiary terminals at Nth tie transformer
532 Coal Systems
5321 Coal Feeders
Asset Management Strategy
To minimise environmental hazards
Controls
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 17 -
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Feeder gearbox Drain gearbox oil
5322 Coal Conveyors
Asset Management Strategy
Remove environmental contaminants and kinetic energy from the coal system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Conveyors Drain gearbox oils (Note detailed risk assessment for access required due to condition of towers)
Wash down all conveyors
Release take up assemblies
Trippers Drain gearbox oils (Note detailed risk assessment for Bin access required due to condition of towers)
Ploughs Drain gearbox oils
Towers Wash down all towers
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 18 -
5323 Bins amp Bunkers
Asset Management Strategy
Minimise environmental hazards Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Bins Wash out bins
533 Fuel Oil
Asset Management Strategy
Remove environmental contaminants from Fuel oil system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Oil guns Remove and drain oil guns
FO Pipework Drain FO pipework ndash pump degreaser through system
FO transfer pprsquos Drain strainers
FO storage See NPS Closure Manual
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 19 -
534 Ash Systems
5341 Ash pumps amp pit
Asset Management Strategy
Maintain dewatering in B stn basement during salvagedemolition activities via an alternative power supply
Controls The following Controls have been identified to maintain site de-watering during SalvageDemolition operation
Plant Description Proposed Actions Responsibility
Alternative power supply
Install temporary generator for ash pumpde-watering pumps and emergency lighting
Ash pump Alternative power supply andor pump required after site power system shut down
5342 HP amp LP Sluice pumps
Asset Management Strategy
Remove environmental contaminants from sluice pumps
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
HP sluice pumps Drain oil from bearing reservoirs
LP sluice pumps Drain oil from bearing reservoirs
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 20 -
5343 Ash Hoppers
Asset Management Strategy
Remove environmental contaminants from hoppers
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Screw conveyors Drain gearbox oils
5344 Deashers
Asset Management Strategy
Remove environmental contaminants from Deashers
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Deashers Drain gearbox oils
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 21 -
535 Compressed Air
Asset Management Strategy
Shut down assets and depressurise the system and remove environmental contanimants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
No 1 amp 2 Compressors Drain oil from air ends and separators
Sth and SW compressors Drain oil from air ends and separators
Air receivers De-pressurise and Open drainvent valves on GS air receivers
De-pressurise and Open drainvent valves on Blr FF air receivers and pulse tanks
De-pressurise and Open drainvent valves on TG air receivers
536 CW Systems
5361 CW Pumps
Asset Management Strategy
Remove environmental contaminants from CW pumps
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 22 -
Plant Description Proposed Actions Responsibility
CW pumps Drain oil from bearings
5362 CW Chambers
Asset Management Strategy
Isolate the gulf waters from the basement
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Chamber
Controls to manage isolation between gulf and basement to be developed Currently spades inserted on CW pump outlets
5363 CW Screens
Asset Management Strategy
Remove environmental contaminants from CW screens
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
CW Screens Drain gearbox and fluid drive oils
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 23 -
537 Water Treatment Plant
Asset Management Strategy
Remove any remaining residual contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Anion tanks Remove and dispose of resin
Mixed bed vessels Remove and dispose of resin
Cation tanks Remove and dispose of resin
Sand filters Remove and dispose of sand
Carbon filters Remove and dispose of Anthracite
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 24 -
538 Town Water and Drains Asset Management Strategy To maintain basement de-watering during salvagedemolition operation
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Sump pumps Install temporary generator for sump pumps
De-watering pump Install temporary generator for de-watering pump
Contaminated drain tank
Pump out Contaminated drain tank after all oils drained from station
Black water system
Disconnect connection from NPS feedline from A stn sewerage tank and Workshopstores sewerage tank Pump out existing tanks in preparation for demolition
Town Water storage tanks Drain water tank
TW supply Isolate TW supply from NPS and SA Water
Hot Water services Drain Workshop and office HWSrsquos
539 Fire Protection system
Asset Management Strategy
Decommission fire protection system and remove environmental contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 25 -
Plant Description Proposed Actions Responsibility
Fire system Advise FM Global of change in status from insured to uninsured facility
Diesel Fire Pumps See NPS Closure Manual `Infrastructure of Interestrsquo
Water storage tank Drain water tank
FM500 system Decommission and remove cylinder
Accumulator Decommission Accumulator at Fire Diesels
33kV room compressor Drain oil from compressor
Fire extinguishers Remove all fire extinguishers
5310 Workshops and Offices
Asset Management Strategy
Minimise any hazards that may impact on demolition crews
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Item Proposed Actions Responsibility
PPS Fitting Shop
Decommission all Electrical supplies air-conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including asbestos removalmanagement sewage system decommissioning and site rehabilitation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 26 -
PPS Boiler Shop and Spares Store
Decommission all Electrical supplies air-conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including asbestos removalmanagement sewage system decommissioning and site rehabilitation
PPS Electrical Shop
Decommission all Electrical supplies air-conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including asbestos removalmanagement sewage system decommissioning and site rehabilitation
Kaefers Workshop
Decommission all Electrical supplies air conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including sewage system decommissioning and site rehabilitation
Grit Blasters Facility
Decommission all Electrical supplies town water systems to facility
Inventory and remove all plant tools and equipment for disposal
Offices Decommission Air Conditioners
Salvage and dispose of furniture and fittings
Remove paperwork required to be kept to comply with Statutory obligations
Equipment rooms Decommission Air conditioners
6 Appendix
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 27 -
61 Legal and other Requirements
611 Legislation and Licences
Management Strategy
Comply with all Legislation and Lease agreements during the Closureremediation process
Item Document Responsibility
1 NorthernPlayford Generating Plant Lease
2 NorthernPlayford Land Lease
3 Environmental Compliance Agreement
4 SA Generation Licence
5 EPA Licences
6 AEMO Certification
7 Pressure Vessel Registrations
8 Lifts Registrations
9 WHS Act amp Regulations
10 Code of Practice ndash Demolition Work
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 28 -
612 Alinta Policies
Item Policy Responsibility
1 Compliance Guideline HSSE-019 Demolition and Decommissioning
613 References
Item Documents Responsibility
1 Care to Closure Risk Assessment
2 NPS Care to Closure Plan
3 PPS Hibernation Manual
4 Inspection amp Audit Sheet
62 Project Plan
63 PPS Administration
631 PPS Registered Plant
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 29 -
Management Strategy
To De-commission and de-register registered Plant
Controls
Item Proposed Actions Responsibility
1 Advise Safework SA in writing of pressure vessels that have been decommissioned
2 Advise Safework SA in writing of Lifts that have been decommissioned
632 PPS Isolations
Management Strategy
To wind back plant and system isolations to Perimeter disconnections
Controls
Item Proposed Actions Responsibility
Existing isolations Clear isolations and remove isolation tags from plant
633 Closure Audit
Management Strategy
To provide an Auditable record of controls put in place to render the site as safe as reasonably practical for salvagedemolition
Controls
Item Proposed Actions Responsibility
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 30 -
7
1 Raise work orders for each control action
2 Complete Inspection amp Audit sheets as each system is made safe
PPS Residual Risks
Management Strategy
To highlight to the salvagedemolition third parties any Residual risks remaining that are beyond the Alinta Energy Closure workscope
Item Residual Risks Responsibility
Boiler insulation Contains Asbestos
WorkshopAdmin building materials Contains asbestos
Basement flooding Seawater seepage into basement
Tunnels Cable tunnels exist between Turbine halls and switchyards
Bag Filters
Bags may still be impregnated with ash potential dust problem on demolition Residual Ash may be present in hoppers
PPS Seawall
Vehicle access to sea side of B Station has been closed due to condemned seawall pillings Will present problems to make safe works in this area
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 31 -
Appendix D
everyone every day every jab Zero Harm
0
i t------------t i t--------t
i
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
5 51
52
53
54
55
System
TurbineBoiler Unit Turbine
Turbine oil systems
Condenser condensate side
Condenser seawater side
Turbine valves
Generator Barring gear
Hydrogen system
CW system CW Pumps
CW Ducts
Feedwater system LP Feedwater
Condensate Polishing Plant
Blr Feed Pumps
HP heaters
Feed make up system
Boiler
Task Name
Ensure all SWMS amp Risk assessments are reviewed and All Personnel signed onto Isolation permits prior to commencing work
NPS Care Closure NPS Unit 1 Care - Project No
TurbineBoiler Unit Turbine
Turbine off
Turbine oil systems
Lube oil system to remain operational
Seal oil system to remain operational
Condenser condensate side
Isolation
Open doors
Condenser seawater side
Drain seawater side of condenser
Turbine valves Isolation
Unit Care - Turbine complete
Generator Barring gear
Run on Barring gear to prevent rotors sagging
Hydrogen system Decommision hydrogen system and purge generator
Unit Care - Generator complete
CW system CW Pumps
Isolation
CW Ducts Ducts to be maintained empty and dry per culvert dewatering system
Unit Care - CW System complete
Feedwater system LP Feedwater
Isolation - CEPs
LP htrs GS Condenser and LP Ejector Drain and store dry
Deaerator and DAFT Drain and store dry
Condensate Polishing Plant
Open vessels
Gas Clearance
Remove resins
Blr Feed Pumps Isolate and drain Feed pumps
HP heaters Isolation
Drain and store dry
Feed make up system
Isolation
Drain Make up tanks
Unit Care - Feedwater System complete
Boiler Boiler off
Duration
0 hrs
24038 hrs
1705 hrs
1705 hrs 725 hrs 1 hr
0 hrs
0 hrs
0 hrs
55 hrs
8 hrs
1 hr
275 hrs
4 hrs
0 hrs 3 hrs
0 hrs
3752 hrs 3752 hrs 120 hrs
1 hr 8 hrs
0 hrs
0 hrs 0 hrs 1 hr
0 hrs 8 hrs
0 hrs
33 hrs 5 hrs 1 hr
8 hrs
8 hrs
27 hrs
2 hrs
1 hr
24 hrs
625 hrs 8 hrs
7 hrs 6 hrs
8 hrs
6 hrs
2 hrs
8 hrs
0 hrs
5332 hrs 2 hrs
Page 1 of 12
39
40
41
42
43
44
45
46
47
48
49
50
a1middotn a s~FE everyone every day every jab Zero Harm
0 I I I
~ ~ i i i
~ ~ i i i
bfl - r r r - l l l
~ ~ i
i i ~ i
~ i
i
~ i i i
-
I I I
i L L L i i
I I I
- -- L L L i -
i -
i -
-
-
i -
i -
i -
i I I I
- L ~
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
56
59
System
Pressure parts Storage
Furnace and Gas path
Draught Plant Air heaters
ID Fans
GR Fan
PA fan
SA fan
Ducts and dampers
ACW System Seawater side
Task Name
Pressure parts Storage
Control cool and drain boiler (in accordance with drainage schedule) Item 8
Isolation
Open boiler doors
Boiler gas clearances
Initiate sprays (pre wash) in Eco 1 amp 2
Furnace and Gas path
Sootblow 8 hrs prior to shutdown
Keep deasher in service for duration of wash
Remove Economiser e-valves
Gas Clearances
Furnace and economiser wash
External Wash down structure
Unit Care - Boiler complete
Draught Plant Air heaters
Shut down once core temp lt 100 degrees
Isolation
Remove dump vvs amp e-vvs
Deluge wash
Open doors
Gas Clearance
Manual internal wash
ID Fans Shut down amp Isolate once unit gas path is dry after precip wash - 48
Open doors
Gas Clearance
Washvocuum windboxes
GR Fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
PA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
SA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
Ducts and dampers
Isolation
Open doors
Gas clearances
WashVacuum GR outlet and precipitator outlet duct
Inspect all ducts and vacuum as required
Unit Care - Draught Plant complete
ACW System Seawater side
Duration
1932 hrs
8 hrs
4 hrs
682 hrs
2 hrs
6 hrs
5332 hrs
6 hrs
0 hrs
4 hrs
1 hr
24 hrs
275 hrs 8 hrs
0 hrs
1695 hrs 4798 hrs 2 hrs
2 hrs
4 hrs
2 hrs
4 hrs
1 hr
16 hrs
165 hrs 4 hrs
4 hrs
1 hr
8 hrs
105 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
1695 hrs
2 hrs
4 hrs
2 hrs
80 hrs
80 hrs
0 hrs
0 hrs 0 hrs 2 hrs Isolate amp drain and dry store (Unit)
Page 2 of 12
93
94
95
96
97
98
99
100
101
102
103
104
everyone every day every jab Zero Harm
0
~ ~ i ~ ~ i i ~ ~ i i ~ i 6tJ i i i ~ i ~ i i i ~ ~ i i i ~ ~ i i
i I-----
i 1------1
I----- i
i 1------1 i
~ i I-----
i I-----
i 1------lii i
i
- l
L
- L
l l
L L
L L
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual System Task Name Index No
Unit Care - ACW System complete
510 Coal System Coal System Bins amp Bunkers Bunkers
Run down bunker levels
Isolate Mill Feeders
Fit bunker emptying chute to EN Feeder chute
Empty EN bunker
Wash EN Bunker
Remove bunker emptying chute from EN
Fit bunker emptying chute to WN Feeder chute
Empty WN bunker
Wash WN Bunker
Remove bunker emptying chute from WN
Fit bunker emptying chute to EC Feeder chute
Empty EC bunker
Wash EC Bunker
Remove bunker emptying chute from EC
Fit bunker emptying chute to WC Feeder chute
Empty WC bunker
Wash WC Bunker
Remove bunker emptying chute from WC
Fit bunker emptying chute to ES Feeder chute
Empty ES bunker
Wash ES Bunker
Remove bunker emptying chute from ES
Fit bunker emptying chute to WS Feeder chute
Empty WS bunker
Wash WS Bunker
Remove bunker emptying chute from WS
Coal feeders Coal feeders Open EN Feeder
Gas clearance
Vac and wash out
Open WN Feeder vac and wash out
Gas clearance
Vac and wash out
Open EC Feeder vac and wash out
Gas clearance
Vac and wash out
Open WC Feeder vac and wash out
Gas clearance
Vac and wash out
Open ES Feeder
Gas clearance
Vac and wash out
Open WS Feeder
Gas clearance
Vac and wash out
Mills Mills Open EN Mill
Gas clearance
Wash out EN Mill - leave open to dry out
Open WN Mill
Gas clearance
Wash out WN Mill - leave open to dry out
Open EC Mill
Duration
0 hrs
7347 hrs 5487 hrs 4 hrs
8 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
4827 hrs 1 hr
1 hr
465 hrs
4 hrs
1 hr
4 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
74 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
832 hrs
5655 hrs 1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
Page 3 of 12
148
149
150
151
152
153
154
155
156
157
158
159
160
everyone every day every jab Zero Harm
0 i
1-------1~
1-------1 i
~ i 1-------1
i 1-------1
~ i 1-------1 i
1-------1~
i 1-------1
l-------16tl
1-------1~
i 1-------1
i 1-------1
1-------1~
i 1-------1
1-------1~
i 1-------1
i 1-------1 i 1-------1~
1-------1~
1-------1 ~ i
1-------1~
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
511
512
6 62
5 51
System
Fuel Oil FO pumps
Storage tanks
Ash system Hoppers
Precips
Deasher
Ash pitpumps
Electrical Systems Instrumentation
TurbineBoiler Unit Turbine
Turbine oil systems
Task Name
Gas clearance
Wash out EC Mill - leave open to dry out
Open WC Mill
Gas clearance
Wash out WC Mill - leave open to dry out
Open ES Mill
Gas clearance
Wash out ES Mill - leave open to dry out
Open WS Mill
Gas clearance
Wash out WS Mill - leave open to dry out
Release roller spring tension
Unit Care - Coal System complete
Fuel Oil FO pumps
Shut oil pumps down when unit OOS
Isolate fuel oil system
Clean filters and system
Drain FO system
Storage tanks Run down storage level (burn sell if possible)
Isolate
Unit Care - Fuel Oil complete
Ash system Hoppers
Run local manual dump
Open hopper doors
Precips Isolate
Remove Precip e-valves
Gas clearance
Full wash of internals - washing manifold
Store with air doors open for natural air circulation
Deasher Isolation
Gas clearance
Full wash of all internals store dry
Ash pitpumps Flush and pump down pit - leave available
Unit Care - Ash System complete
Electrical Systems Instrumentation
Build scaffold for furnace camera removal
Remove furnace camera
Dismantle scaffold after furnace camera removal
Unit Care - Electrical Systems complete
Unit 1 Care Complete
NPS Unit 2 Care - Project No TurbineBoiler Unit
Turbine Turbine off
Turbine oil systems
Lube oil system to remain operational
Seal oil system to remain operational
Duration
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
6 hrs
0 hrs
345 hrs 335 hrs 1 hr
1 hr
8 hrs
24 hrs
0 hrs 0 hrs
1 hr
0 hrs
629 hrs 629 hrs 8 hrs
3 hrs
525 hrs 4 hrs
24 hrs
1 hr
24 hrs
0 hrs
417 hrs 2 hrs
1 hr
2 hrs
0 hrs 0 hrs
0 hrs
14 hrs 14 hrs 4 hrs
8 hrs
2 hrs
0 hrs
0 hrs
18598 hrs
18598 hrs 2238 hrs 1 hr
0 hrs
0 hrs
0 hrs
Page 4 of 12
204
205
206
207
208
209
210
211
212
213
214
a1middotn a s~FE everyone every day every jab Zero Harm
0 I I I
~ i
~
~ - r r r - l l l
~
~ I I I
- l L l ~
~ I I I
- L L L ~ ~ ~
i i i
~
lii Iii
Iii ~ -
I I I
-
Iii L L L -
lil ~ i i i
lil 6tl i i i
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
52
53
54
55
System
Condenser condensate side
Condenser seawater side
Turbine valves
Generator Barring gear
Hydrogen system
CW system CW Pumps
CW Ducts
Feedwater system LP Feedwater
Condensate Polishing Plant
Blr Feed Pumps
HP heaters
Feed make up system
Boiler
Pressure parts Storage
Furnace and Gas path
Task Name
Condenser condensate side
Isolation
Open doors
Condenser seawater side
Drain seawater side of condenser
Turbine valves Isolation
Unit Care - Turbine complete
Generator Barring gear
Run on Barring gear to prevent rotors sagging
Hydrogen system Decommision hydrogen system and purge generator
Unit Care - Generator complete
CW system CW Pumps
Isolation
CW Ducts Ducts to be maintained empty and dry per culvert dewatering system
Unit Care - CW System complete
Feedwater system LP Feedwater
Isolation - CEPs
LP htrs GS Condenser and LP Ejector Drain and store dry
Deaerator and DAFT Drain and store dry
Condensate Polishing Plant
Open vessels
Gas Clearance
Remove resins
Blr Feed Pumps Isolate and drain Feed pumps
HP heaters Isolation
Drain and store dry
Feed make up system
Isolation
Drain Make up tanks
Unit Care - Feedwater System complete
Boiler Boiler off
Pressure parts Storage
Control cool and drain boiler (in accordance with drainage schedule) Item 8
Isolation
Open boiler doors
Boiler gas clearances
Initiate sprays (pre wash) in Eco 1 amp 2
Furnace and Gas path
Sootblow 8 hrs prior to shutdown
Keep deasher in service for duration of wash
Remove Economiser e-valves
Gas Clearances
Furnace and economiser wash
Duration
617 hrs
8 hrs
1 hr
24 hrs
4 hrs
0 hrs 3 hrs
0 hrs
227 hrs 227 hrs 120 hrs
2 hrs 8 hrs
0 hrs
0 hrs 0 hrs 1 hr
0 hrs 8 hrs
0 hrs
33 hrs 617 hrs 1 hr
8 hrs
8 hrs
27 hrs
2 hrs
1 hr
24 hrs
557 hrs 8 hrs
757 hrs 6 hrs
8 hrs
717 hrs
2 hrs
8 hrs
0 hrs
543 hrs 2 hrs
203 hrs
8 hrs
4 hrs
713 hrs
2 hrs
6 hrs
543 hrs
6 hrs
0 hrs
4 hrs
1 hr
24 hrs
Page 5 of 12
255
256
257
258
259
260
261
262
263
264
265
266
a1middotn a s~FE everyone every day every jab Zero Harm
0
~ i - r r r - L L L
~ ~ i
i i ~
6 i
i
~ i i i
i i i
i i i
i i --
i i
~ -
- L L L ~ ~ i ~ i ~ i i i ~ i Iii i i
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
56
59
Isolate amp drain and dry store (Unit)
510
System
Draught Plant Air heaters
ID Fans
GR Fan
PA fan
SA fan
Ducts and dampers
ACW System Seawater side
Coal System Bins amp Bunkers
Task Name
External Wash down structure
Unit Care - Boiler complete
Draught Plant Air heaters
Shut down once core temp lt 100 degrees
Isolation
Remove dump vvs amp e-vvs
Deluge wash
Open doors
Gas Clearance
Manual internal wash
ID Fans Shut down amp Isolate once unit gas path is dry after precip wash - 48
Open doors
Gas Clearance
Washvocuum windboxes
GR Fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
PA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
SA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
Ducts and dampers
Isolation
Open doors
Gas clearances
WashVacuum GR outlet and precipitator outlet duct
Inspect all ducts and vacuum as required
Unit Care - Draught Plant complete
ACW System Seawater side
Unit Care - ACW System complete
Coal System Bunkers
Run down bunker levels
Isolate Mill Feeders
Fit bunker emptying chute to EN Feeder chute
Empty EN bunker
Wash EN Bunker
Remove bunker emptying chute from EN
Fit bunker emptying chute to WN Feeder chute
Empty WN bunker
Wash WN Bunker
Remove bunker emptying chute from WN
Duration
24 hrs 8 hrs
0 hrs
16917 hrs 4748 hrs 2 hrs
2 hrs
4 hrs
2 hrs
4 hrs
1 hr
16 hrs
13 hrs 4 hrs
4 hrs
1 hr
8 hrs
1067 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
16917 hrs
2 hrs
4 hrs
2 hrs
80 hrs
80 hrs
0 hrs
0 hrs 0 hrs 2 hrs
0 hrs
7347 hrs 5865 hrs 4 hrs
8 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
Page 6 of 12
309
310
311
312
313
314
315
316
317
318
319
320
321
a1middotn a s~FE everyone every day every jab Zero Harm
0 I I I i ~ ~ i i ~ ~ i i i ~ i ~ i i i 6 i ~ i
i i
i i
i
i - -- r r r i ~ L L L i i ~ I I I
i - - L L L
~ i i
~ i i
~ i
~ i
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual System Task Name Index No
Fit bunker emptying chute to EC Feeder chute
Empty EC bunker
Wash EC Bunker
Remove bunker emptying chute from EC
Fit bunker emptying chute to WC Feeder chute
Empty WC bunker
Wash WC Bunker
Remove bunker emptying chute from WC
Fit bunker emptying chute to ES Feeder chute
Empty ES bunker
Wash ES Bunker
Remove bunker emptying chute from ES
Fit bunker emptying chute to WS Feeder chute
Empty WS bunker
Wash WS Bunker
Remove bunker emptying chute from WS
Coal feeders Coal feeders Open EN Feeder
Gas clearance
Vac and wash out
Open WN Feeder vac and wash out
Gas clearance
Vac and wash out
Open EC Feeder vac and wash out
Gas clearance
Vac and wash out
Open WC Feeder vac and wash out
Gas clearance
Vac and wash out
Open ES Feeder
Gas clearance
Vac and wash out
Open WS Feeder
Gas clearance
Vac and wash out
Mills Mills Open EN Mill
Gas clearance
Wash out EN Mill - leave open to dry out
Open WN Mill
Gas clearance
Wash out WN Mill - leave open to dry out
Open EC Mill
Gas clearance
Wash out EC Mill - leave open to dry out
Open WC Mill
Gas clearance
Wash out WC Mill - leave open to dry out
Open ES Mill
ltNew Taskgt
Wash out ES Mill - leave open to dry out
Open WS Mill
Gas clearance
Wash out WS Mill - leave open to dry out
Release roller spring tension
Unit Care - Coal System complete
Duration
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
509 hrs 1 hr
1 hr
465 hrs
4 hrs
1 hr
4 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
75 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
832 hrs
554 hrs 1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
8 hrs
8 hrs
1 hr
1 hr
8 hrs
6 hrs
0 hrs
Page 7 of 12
365
366
367
368
369
370
371
372
373
374
375
376
377
everyone every day every jab Zero Harm
0
~ gt------------lt~
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i t-------t
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NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
System Task Name Duration
378 511 Fuel Oil Fuel Oil 5048 hrs 379 FO pumps FO pumps 3367 hrs 380 Shut oil pumps down when unit OOS 1 hr
381 Isolate fuel oil system 1 hr
382 Clean filters and system 8 hrs
383 Drain FO system 24 hrs
384 Storage tanks Storage tanks 0 hrs 385 Run down storage level (burn sell if possible) 0 hrs
386 Isolate 1 hr
387 Unit Care - Fuel Oil complete 0 hrs
388 512 Ash system Ash system 7803 hrs 389 Hoppers Hoppers 6322 hrs 390 Run local manual dump 8 hrs
391 Open hopper doors 3 hrs
392 Precips Precips 5217 hrs 393 Isolate 4 hrs
394 Remove Precip e-valves 24 hrs
395 Gas clearance 1 hr
396 Full wash of internals - washing manifold 24 hrs
397 Store with air doors open for natural air circulation 0 hrs
398 Deasher Deasher 417 hrs 399 Isolation 2 hrs
400 Gas clearance 1 hr
401 Full wash of all internals store dry 2 hrs
402 Ash pitpumps Ash pitpumps 0 hrs 403 Flush and pump down pit - leave available 0 hrs
404 Unit Care - Ash System complete 0 hrs
405 6 Electrical Systems Electrical Systems 14 hrs 406 62 Instrumentation Instrumentation 14 hrs 407 Build scaffold for furnace camera removal 4 hrs
408 Remove furnace camera 8 hrs
409 Dismantle scaffold after furnace camera removal 2 hrs
410 Unit Care - Electrical Systems complete 0 hrs
411 Unit 1 Care Complete 0 hrs
412 NPS Station Care - Project No 101 hrs
413 5 TurbineBoiler Unit TurbineBoiler Unit 101 hrs 414 510 Coal System Coal System 101 hrs 415 Train unloading Train unloading 3 hrs 416 Isolate unloader 1 hr
417 Washvaccuum train unloader 2 hrs
418 Bins Bins 64 hrs 419 Wash out coal bins 64 hrs
420 Conveyors Conveyors 100 hrs 421 Isolate conveyors 4 hrs
422 Wash down conveyors 32 hrs
423 Coal Towers Coal Towers 32 hrs 424 Wash down coal towers 32 hrs
425 Station Care - Coal System complete 0 hrs
426 511 Fuel Oil Fuel Oil 585 hrs 427 FO pumps FO pumps 585 hrs 428 Isolate fuel oil unloading delivery pumps 2 hrs
429 Drain fuel oil pipework 24 hrs
430 FO Storage tanks FO Storage tanks 32 hrs 431 Drain fuel oil storage tanks and vaccuum out any residue 32 hrs
432 FO Storage - PPS FO Storage - PPS 10 hrs 433 Run stocks to minimum levels 0 hrs
Page 8 of 12
everyone every day every jab Zero Harm
0
t------t i
t------t i
f--------l i
i t------t
i t------t
i f--------l i
f--------l i
i f--------l i
i f--------l
i t------t
i f--------l i
t------t i
t------t i
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
7 71
5 51
53
54
System
FO Storage - service tank
Stn Aux Aux Blr
TurbineBoiler Unit Turbine Turbine Oil Systems
CEPs
Turbine valves
CW system Chambers
CW Pumps
CW Dosing
Feedwater system
Task Name
Clean out remaining oil
FO Storage - service tank
Run stocks to minimum levels
Clean out remaining oil
Station Care - Fuel Oil complete
Stn Aux Aux Blr
Isolation
Drain and dry store Aux Blr
DACP Disconnect discharge pipework
Remove collection vessel filter bags
Wash collection vessels
NPS Station Care Complete
NPS Closure - Project No TurbineBoiler Unit
Turbine Turbine Oil Systems
Isolation
Drain main oil tank and pipework
Drain seal oil defoaming tank and pipework
Drain seal oil drain regulator tanks
Drain Loop seal tanks
Isolate electrical supplies to pumps
CEPs Drain oil from CEP and motor
Turbine valves Isolate power supplies
Drain actuators and pipework
Drain control stations and acumulators
NPS Closure - Turbine complete
CW system Chambers
Stop log sealing faces to be cleaned divers required
Install stop logs
CW chamber drained
dewatering pump installed
Remove CW pump
Fit blanks
Remove Dewatering pp
Remove stop logs
CW Pumps Drain oil from pump bearings
Ferrous Chloride dosing
Drain and flush tank amp pipe work to condenser
Isolation
Chlorination Plant Flush acid pipe work with sea water
Isolation
Drain acid tank
Wash out acid tank
NPS Closure - CW System complete
Feedwater system
Duration
8 hrs
10 hrs
0 hrs
8 hrs
0 hrs
715 hrs 10 hrs 2 hrs
8 hrs
18 hrs 2 hrs
8 hrs
8 hrs
0 hrs
24038 hrs
24038 hrs 168 hrs 168 hrs
4 hrs
64 hrs
32 hrs
32 hrs
32 hrs
4 hrs
32 hrs 32 hrs
98 hrs 2 hrs
48 hrs
48 hrs
0 hrs
24038 hrs 218 hrs 32 hrs
32 hrs
16 hrs
2 hrs
80 hrs
32 hrs
8 hrs
16 hrs
8 hrs 8 hrs
17 hrs
16 hrs
1 hr
5 hrs 1 hr
2 hrs
1 hr
1 hr
0 hrs
35 hrs
Page 9 of 12
475
476
477
478
479
480
481
482
483
484
485
486
everyone every day every jab Zero Harm
0
t------t i
t------t i
t------t i
t-------t i
t------t i
t------t i
t-------t i
t------t i
t-------t i
t------t i
t-------t i
t-------t i
t------t i
i
t------t i
t------t i
i t-------t i
t------t i
t------t i
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
System Task Name Duration
487 Res Feed Water Tanks Res Feed Water Tanks 2 hrs
488 Drain RFW tanks 2 hrs
489 LP Feedheaters LP Feedheaters 8 hrs 490 Open drains and doors 8 hrs
491 GS condenser GS condenser 8 hrs 492 Open drains and doors 8 hrs
493 LP ejector LP ejector 8 hrs 494 Open drains and doors 8 hrs
495 Boiler feed Pumps Boiler feed Pumps 32 hrs 496 Remove oil from BFP and GTD 32 hrs
497 HP 6 amp 7 HP 6 amp 7 4 hrs 498 Open drains 4 hrs
499 Ammonia dosing pp Ammonia dosing pp 4 hrs
500 Drain oil from bearings 4 hrs
501 55 Boiler Boiler 8 hrs 502 Pressure parts Pressure parts 8 hrs 503 Open all drains and vents 8 hrs
504 Safety valves Safety valves 8 hrs 505 Relieve safety valve spring tensions 8 hrs
506 Blowdown vessels Blowdown vessels 8 hrs 507 Open all drains and vents 8 hrs
508 56 Draught Plant Draught Plant 16 hrs 509 Air Heaters Air Heaters 16 hrs 510 Drain oil from bearings and gearboxes 16 hrs
511 ID fans ID fans 16 hrs 512 Drain oil from bearings and oil tanks 16 hrs
513 GR Fan GR Fan 8 hrs 514 Drain oil from bearings and oil tanks 8 hrs
515 PA fan PA fan 8 hrs 516 Drain oil from bearings and oil tanks 8 hrs
517 SA SA 8 hrs 518 Drain oil from bearings and oil tanks 8 hrs
519 57 Valves Valves 40 hrs 520 Station safety vvs Station safety vvs 40 hrs 521 Relieve spring tensions 40 hrs
522 510 Coal System Coal System 125 hrs 523 Ploughs Ploughs 8 hrs 524 Drain gearbox oils 8 hrs
525 Trippers Trippers 8 hrs 526 Drain gearbox oils 8 hrs
527 Conveyors Conveyors 24 hrs 528 Drain oil from gearboxes 24 hrs
529 Coal feeders Coal feeders 36 hrs 530 Drain oil from gearboxes 36 hrs
531 Mills Mills 96 hrs 532 Drain oil from gearboxes 96 hrs
533 Drain oil from Rollers 48 hrs
534 512 Ash system Ash system 8 hrs 535 Deasher Deasher 8 hrs 536 Drain oil from hydraulic units 8 hrs
537 Crusher Crusher 4 hrs 538 Drain oil from crusher drive 4 hrs
539 Ash pitpumps Ash pitpumps 4 hrs 540 Isolate amp install submersible pp (discuss with contractor) 4 hrs
541 6 Electrical Systems Electrical Systems 24038 hrs
Page 10 of 12
everyone every day every jab Zero Harm
0
f------t i
f------t i
i f------t
i f------t i
i f------t
i f------t i
f------t i
i f------t
i f------t
f------t i
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
61
62
63
64
65
67
7 71
72
73
System
Control Systems FCS battery systems
Fire safety system
Instrumentation FCS stations
FCS inverter output
FCS inverter input
DC systems DC systems 220v
110v
24v
HV supply High Voltage supply
Switchboards 66
415V
Diesel Generators
Stn Aux Aux Blr
Compressed Air Compressors
Receivers
WTP RO Plant
Task Name
Control Systems FCS battery systems
Remove low voltage dc batteries
Fire safety system Decommission and remove DC battery inverter
Instrumentation FCS stations
Isolate AC supply to FCS stations
FCS inverter output
Isolate inverter supply to FCS stations
FCS inverter input Decommision inverter DC supplies
DC systems DC systems 220v
Decommission battery charger
Remove batteries
Wash down battery storage area
110v Decommission battery charger
Remove batteries
Wash down battery storage area
24v
Decommission battery charger
Remove batteries
Wash down battery storage area
HV supply High Voltage supply
Disconnect 275kV supply at Davenport - Electranet
Disconnect at the 18kV side of the transformer
Disconnect the 132kV line to the House transformer
Switchboards 66
Isolate 66 switchboards
discharge breaker spring
415V discharge breaker spring
Diesel Generators
Electrical disconnection
Mechanical Disconnection
Drain fuel tank
Electrical Systems complete
Stn Aux Aux Blr
Drain Auxillary blr fuel oil tank
Drain dosing chemicals
Compressed Air Compressors
Shut down and isolate compressors
Receivers Open up Air receivers
WTP RO Plant
Duration
6 hrs 6 hrs
6 hrs
2 hrs 2 hrs
3 hrs 2 hrs 2 hrs
3 hrs
3 hrs
1 hr 1 hr
24038 hrs 16 hrs 1 hr
16 hrs
2 hrs
12 hrs 1 hr
12 hrs
2 hrs
15 hrs 4 hrs
1 hr
8 hrs
2 hrs
48 hrs 48 hrs
0 hrs
24 hrs
24 hrs
24 hrs 24 hrs 2238 hrs
24 hrs
24 hrs 24 hrs
36 hrs 2 hrs
16 hrs
16 hrs
2 hrs
0 hrs
40 hrs 8 hrs 8 hrs
2 hrs
3 hrs 3 hrs 3 hrs
1 hr 1 hr
40 hrs 8 hrs
Isolate system
Isolate generators for removal
Page 11 of 12
583
584
585
586
587
588
589
590
591
592
593
594
595
everyone every day every jab Zero Harm
0 f------t
i
i f------t
i f------t
f------t i
f------t i
f------t i
f------t i
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID
635
636
Wg Manual Index No
74
Remove all portable fire extinguishers from site
8 81
83
84
System
WTP
Fire Protection Fire feedwater
Fire Deluge systems
Diesel Fire Pumps
Electric pmps
Fire detection DCPs
Halon systems
Vesda system
Fire extinguishers
Services Workshops Mills
Plant
ElectricalCoal line
Chem Lab
Admin
Document information and management
Pressure vessel de-registration
Security Appendix
Task Name
Decommission plant
WTP Drain all vessels
Dispose of resins and chemicals
Fire Protection Fire feedwater
Isolate from supply and drain system
Fire Deluge systems
Drain at pump discharge and each deluge station
Diesel Fire Pumps Drain fuel tank engine oil and coolant
Electric pumps Isolate motors
Fire detection DCPs
Isolate and remove lead acid batteries
Halon systems Decommission and Remove Halon cylinders
Vesda system remove batteries from Vesda units
Fire extinguishers
Services Workshops
Mills Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
Plant Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
ElectricalCoal line Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
Chem Lab Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
Admin ltNew Taskgt
Document information and management
Pressure vessel de-registration
Duration
8 hrs
40 hrs 40 hrs
40 hrs
8 hrs 4 hrs 4 hrs
8 hrs
8 hrs
8 hrs 8 hrs
2 hrs 2 hrs
8 hrs
8 hrs
8 hrs 8 hrs
4 hrs 4 hrs
8 hrs 8 hrs
40 hrs 40 hrs 8 hrs 2 hrs
8 hrs
8 hrs 2 hrs
8 hrs
8 hrs 2 hrs
8 hrs
40 hrs 40 hrs
24 hrs
8 hrs 8 hrs
8 hrs
8 hrs
8 hrs
8 hrs
85 9
Page 12 of 12
Appendix E
NPS Chemical plant that needs to be decommissioned
LPG ignition system decommissioning when Confirmation amp monitoring amount to contend with Removal dateComplete Target removal date
2 x 200kg cylinders owned by origin Disconnect cylinders and connect nitrogen bank of cylinders to purge pipework after units shutdown Cylinders removed - no monitoring required
1 and half cylinders
Arrange for shift to open aux boiler and each burner separately monitor pipework for explosive gases
Get origin to remove cylinders from site 21062016
Ammonia Dilution system
20 m3 tank and filling pipework
Use as much as possible in normal operation Remnants in tank while units still operating dilute with copious amounts of sea water and drain to contaminated drains Refill tank with demin water and drain to contaminated drains system amd the refill to above pump take off level Pump water through filling pipework to dosing tanks
in week before units shut down Empty tank and monitor for ammonia and pH
1 to 2 m3 25 to 5 NH3 21062016
2 x transfer pumps and transfer pipe to unit 1 unit 2 and boiler filling pump
When dilution tank decontaminated and filled with fresh water pump water through dosing pumps and lines for 20 minutes
in week before units shut down Empty tank and monitor for ammonia and pH
21062016
3 x 2000 litre dosing tanks and associated pumps and dosing lines
use as much during normal service and then drain with diltion water to the contaminated drains system Refill with fresh water and drain to contaminated drains Boiler dosing tank can be decommissioned in week before units come off
one at a time as units come off Empty tank and monitor for ammonia and pH
3 x 200litres 025 NH3 21062016
Hydrogen banks and pipework into station
8 banks of hydrogen BOC to remove after units off Cylinders removed - no monitoring required
21062016
stable flow controllers and hydrogen pipework purged when generator is purged with carbon dioxide after units off purged monitor for explosive gases 21062016
Water Treatment Plant including Reverse Osmosis plant 98 sulphuric acid
2 x bulk chemical storage tanks (max vol 36m3)
Use as much as possible during normal service Pump down from either drain or 1inch take off until level below man hole Take off man hole cover and pump out sulphuric acid until only remnants remain Open drain to bund and wash tank out to decontaminate and then release to effluent bulk tank with diluted sodium hydroxide remnants to neutralise the mixture before pumping to ash pit and ash pond
one before units come off and the other shortly afterwards
empty tank - monitor effluent for pH 3 to 4 m3 98 H2SO4 8062016
2 x measure vessels leave empty after last regeneration and then remove bottom flange and remove standpipe and flush with water
one before units come off and the other shortly afterwards
montor pH in drain 1 or 2 litres 98 H2SO4 8062016
pipework disconnect and flush with water one before units come off and the other shortly afterwards
Monitor pH in drain lt1 litre 98 H2SO4 8062016
2 x 20 sulphuric acid dilution tanks and pipework
run tank out during last regeneration and drain remnants to effluent system Disconnect pipework and flush with water
one before units come off and the other shortly afterwards
Monitor pH in drain 2 x 200litres 20 H2SO4 8062016
50 sodium hydroxide
2 x bulk chemical storage tanks (max vol 36m3)
Use as much as possible during normal service Pump down from either drain or 1inch take off until level below man hole Take off man hole cover and pump out sodium hydroxide until only remnants remain Open drain to bund and wash tank out to decontaminate and then release to effluent bulk tank with diluted sulphuric acid remnants to neutralise the mixture before pumping to ash pit and ash pond
one before units come off and the other shortly afterwards
empty tank - monitor effluent for pH 3 to 4 m3 50 NaOH 23062016
2 x measure vessels leave empty after last regeneration and then remove bottom flange and remove standpipe and flush with water
one before units come off and the other shortly afterwards
montor pH in drain 1 to 2 litres 50 NaOH 23062016
pipework disconnect and flush with water one before units come off and the other shortly afterwards
montor pH in drain lt 1 litre 50 NaOH 23062016
50 sulphuric acid IBC run out product in service or send back to ace chemicals also could put in acid dilution tank and use in regeneration of cation resin If only remnants drain to contaminated drains system
in week before units shut down montor pH in drain lt 500litres 50 H2SO4 8062016
42 Ferric chloride IBC run out product in service or send back to ace chemicals also if only remnants remain drai in week before units shut down montor pH in drain lt 5 Litres FeCL3 42 21062016
10 Sodium metabisulphate tank Bubble air through solution for a cou[ple of days until sodium metabisulphite forms sodium sulphate and then drain to contaminated drains system
in week before units shut down montor pH and ORP in drain lt200 litres NaSO4 or SMBS 20062016
antiscalant tank run out in normal service and drain residue to contaminated drains system in week before units shut down Monitor Phosphate 20 litres antescalant 20062016
2 x anion 2 x cation and 2 x mixed bed vessels ion exchange resin
pump out resin to storage truck to be removed from site - Cations 2 x 7000litres Anions 2 x 5400 litres Mixed beds 2 x 1250 litres of ion exchange resin
one train before units come off and the other shortly afterwards
27300 litre ion exchange resin 14062016
Condensate polishers
5 x ion exchange resin charges pump out resin to storage truck to be removed from site =gt Adelaide approx 6200 litres per charge
3 resin charges when first unit is in non-return to service period and other 2 when second unit is off
31000 litre ion exchange resin 14062016
Sulphuric acid measure vessel and Sodium hydroxide measure vessel
leave empty after last regeneration and then remove bottom flange and remove standpipe and flush with water
in week before units shut down montor pH in drain 1 or 2 litres 98 H2SO4 and 50 NaOH soln
8062016
pipework (concentrated chemical) disconnect and flush with water in week before units shut down montor pH in drain lt1 litre 98 H2SO4 and 50 NaOH soln
8062016
Sulphuric acid dilution vessel and pipework run tank out during last regeneration and drain remnants to effluent system Disconnect pipework and flush with water
in week before units shut down montor pH in drain 250litres 20 H2SO4 8062016
Ferrous Chloride
12 ferrous chloride tank pump out ferrous chloride for disposal and wash out remnants to contaminated drains system with copious dilution
in week before units shut down montor pH and iron in drain 5 m3 12 FeCL2 soln 21062016
dilution 1-2 solution tank Use as much as possible during normal operation and flush out remnants of tanks to contaminated drains system
in week before units shut down montor pH and iron in drain 15m3 1 - 2 soln 21062016
Carbon dioxide
36 G size cylinders Use carbon dioxide up in generator purge and purging hydrogen lines After Units off Could start one unit purge in last week of running
21062016
Pipework break pipe work at various locations to release carbondioxide After Units off Could start one unit purge in last week of running
21062016
Generators
2 x hydrogen in generator space Displace hydrogen with carbon dioxide at ealiest time possible and then purge with air After Units off Could start one unit purge in last week of running
orsat check 21062016
Chlorine plant 1000litres of 2 to 3 hydrochloric acid solution
Drain to contaminated drains system with copious waterseawater dilution in week before units shut down montor pH in drain 5000 litres lt1 HCl solution 21062016
Auxillary boiler dosing tank 60 litres BWT dosing solution Neutralise with acid or dilute with lots of water and into contaminated drains system in week before units shut down montor pH in drain 40 litres BWT 21062016
Workshop and laboratory chemicals amp hazardous substances Various chemicals solvents oils and Greases Arrange disposal by contractor After shut down 27062016
Bottled Gas
Various Cylinders on site Arrange transport to BOC After shut down Cylinders removed - no monitoring required
21062016
SF6 amp Freon in GCB amp transformers and Spare SF6 Freon cylinders SF6 and Freon in Generator circuit breaker and transformers and cyliders of SF6 and Freon in workshops and store compound
Arrange recovery and disposal by contractor After Shut down 21062016
Radio active substances (XRF etc etc) Pulsed XRF 2 x hand held XRF and Benchtop XRF in Laboratory
Oxford Instruments model X-Met 3000T Tube serial no 702033 (EPA no 21237) has been disabled Hand held pulsed and benchtop XRF to be sold
After Shut down 1102016
Petrol Tank underground storage NPS Store Get pumped out for Macmahons to remove
Timeframe After Shutdown
Target date 30062016
Status Complete
Diesel tanks Fire diesel tanks Cat Generator Tank
Get Pumped out Get Pumped out
Late June Late June
30062016 30062016
Complete Complete
Fuel Oil Aux Boiler Main fuel oil tank PPS fuel oil tank Flush fuel oil system including PPS to NPS pipeline
Get pumped out and cleaned Get pumped out and cleaned Clean out
Get pumped out and cleaned
After Shutdown After Shutdown After Shutdown
After Shutdown
31082016 31082016 31082016
31082016
Emptied - to be cleaned Emptied - to be cleaned Emptied - to be cleaned
Emptied - to be cleaned
Oils Plant - all but transformers and turbines Workshop and stores
Pump out - fans air heaters BFPs ID fans Gr Fans Mills Deashers and ploughs collect together on shut down
After Shutdown After shut down
31082017 31082017
Transformers degass- Remove Freon gas Coal line transformers site transfromers
Reclaim at shut down Reclaim when de-energised
After shut down June
31082017 31082017
Generator circuit breakers remove SF6 Generator circuit breakers SF^ in store
reclaim gas from circuit breakers Dispose of gas cylinders
after shut down after shut down
31082017 30062016 Complete
Batteries Various NiCad Lithium NiMetal hydride etc Lead acid in disposal area Battery room batteries
collect together on shut down collect together at shutdown McMahons
After shut down After shut down After shutdown
30062016 30062016 30062016
Complete Complete Complete
Mercury Globes and mamometers etc Collect together on shutdown After shutdown 30062016 Complete
Greases and permalubes Workshop and stores Collect together on shutdown After shutdown 31082017
Appendix E1
NPS Chemical plant that needs to be decommissioned
Item number decommissioning when amount to contend with
Ammonia Dilution system
1 NPS ammonia dilution 20 m3 tank Drain tank and flush out in week before units shut down 1 to 2 m3 25 to 5 NH3
2 3 x 2000 litre dosing tanks at NPS pump out remnants one at a time as units come off 3 x 200litres 25 NH3
Water Treatment Plant including Reverse Osmosis plant
98 sulphuric acid
3 2 x bulk chemical storage tanks (max vol 36m3)
at NPS Pump out tank and decontaminate Remove built up sludge
one before units come off and
the other shortly afterwards 3 to 4 m3 98 H2SO4
4 2 x 20 sulphuric acid dilution tanks at NPS pump out tank and decontaminate one before units come off and
the other shortly afterwards 2 x 200litres 20 H2SO4
50 sodium hydroxide
5 2 x bulk chemical storage tanks (max vol
36m3) at NPS Pump out tank and decontaminate Remove built up sludge
one before units come off and
the other shortly afterwards 3 to 4 m3 50 NaOH
6 50 sulphuric acid IBC at NPS Pump out tank and decontaminate Remove built up sludge in week before units shut down lt 500litres 50 H2SO4
7 10 Sodium metabisulphate tank RO plant NPS pump out tank and decontaminate in week before units shut down lt200 litres NaSO4 or SMBS
8 antiscalant tank RO plant NPS pump out tank and decontaminate in week before units shut down 20 litres antescalant
9 2 x anion 2 x cation and 2 x mixed bed vessels
ion exchange resin at NPS
pump out resin to storage truck to be removed from site - Cations 2 x
7000litres Anions 2 x 5400 litres Mixed beds 2 x 1250 litres of ion exchange
resin
one train before units come off
and the other shortly afterwards 27300 litre ion exchange resin
Condensate polishers
10 5 x ion exchange resin charges at NPS pump out resin to storage truck to be removed from site =gt Adelaide approx
6200 litres per charge
3 resin charges when first unit is
in non-return to service period
and other 2 when second unit is
off
31000 litre ion exchange resin
11 Sulphuric acid dilution vessel at NPS pump out tank and decontaminate in week before units shut down 250litres 20 H2SO4
Ferrous Chloride
12 NPS 12 ferrous chloride tank pump out tank and decontaminate in week before units shut down 5 m3 12 FeCL2 soln
13 NPS dilution 1-2 solution tank pump out tank and decontaminate in week before units shut down 15m3 1 - 2 soln
Auxillary boiler dosing tank
14 NPS AUX BLR - 60 litres BWT dosing solution pump out tank and decontaminate in week before units shut down 60 litres BWT
Workshop and laboratory chemicals amp hazardous substances
15 Various chemicals solvents oils and Greases
at NPS remove workshop chemicals oils etc After shut down manifest
16 Various chemicals paints amp glues at NPS Remove Site store oils and chemicals After shut down manifest
Petrol Tank underground storage
17 NPS Store Get pumped out for Macmahons to remove tank After Shutdown
Max 115 Kilolitres hopefully
done to lt1000 litres
Diesel tanks
18 NPS and PPS Fire diesel tanks Move to main diesel tank near tower C Late June 3700 litres max
19 NPS Cat Generator Tank Move to main diesel tank near tower C Late June 4700 litre max
Fuel Oil
20 NPS Aux Boiler tank Pump out and Clean After Shutdown 5000 litres max
21 NPS Main fuel oil tank Pump out and Clean After Shutdown 250000 litres max lt50000 litres
22 PPS fuel oil tank Pump out and Clean After Shutdown lt10000 litres
23 fuel oil Pipe from delivery point to NPS and
PPPS service tanks clean out line After Shutdown
Unkown
24 fuel oil Pipe from PPS service tank to PPS LP
and HP oilheater and return line Clean out line After Shutdown
Unkown
25 PPS fuel oil lp heater X 2 Clean out heater After Shutdown Unkown
26 PPS fuel oil hp heater X 2 Clean out heater After Shutdown Unkown
27 PPS fuel oil lines to burner and back to heaters clean out line After Shutdown Unkown
28 NPS fuel oil heaters x 2 Clean out heater After Shutdown Unkown
29
NPS fuel oil lines to transfer pumps service
pumps lines to burners and back to main oil
tank NPS unit 1 and 2
Clean out lines After Shutdown
Unkown
Oils
30 NPS Turbine oils from unit 1 and 2 Pump out and dispose After Shutdown 32860 x 2
31 NPS unit turbine oil tanks and oil conditioners clean out After Shutdown
32 NPS turbine oil transfer lines and storage tank clean out After Shutdown
33 NPS mills x 12 ground floor collect together on shut down After shut down 1800 x 12
34 NPS Primary and secondary air fans above
ground x 2 Pump out and dispose
After Shutdown 770 x 4
35 NPS Primary air and secondary air heaters lube
oil X 2 - above ground level Pump out and dispose
After Shutdown 425 X 4
36 NPS Primary air and secondary air heaters
gearbox oil X 2 - above ground level Pump out and dispose After Shutdown 80 x 4
37 NPS Boiler Feed pumps grbx tank amp cooler X 4 Pump out and dispose After Shutdown 2800 x 4
38 NPS Deasher x 2 hydraulic oil Pump out and dispose After Shutdown 60 x 2
39 NPS Coal line ploughs x 2 Pump out and dispose After Shutdown 450 X 2
40 NPS ID fans x 4 Pump out and dispose After Shutdown 770 x 4
41 NPS GR fans x 2 Pump out and dispose After Shutdown 500 x 2
42
NPS Conveyer gearboxfluid drives 1(x2) 2(x2)
3 7(x2) 9(2)11(x2) - above and below ground
level
Pump out and dispose
After Shutdown
130 to 372 mainly in 150litre
range
43 NPS compressors x 3 Pump out and dispose After Shutdown 100 x 3
44 NPS Cat generators x 2 Pump out and dispose After Shutdown 200 x 2
45 Workshop storages at NPS collect remove from site and dispose After Shutdown y
46 Stores Shed oils and grease at NPS remove from site and dispose After Shutdown lots
47 waste oil collection area at NPS remove from site and dispose After Shutdown 12000 + litres
Transformers oils
48 NPS transformer - 2 x stepup Fuji Remove oil late june 2x 53000litre
49 NPS transformer - 2 x unit Wilson Remove oil late june 2 x 13000 l
50 NPS transformer - 2 x station tyree Remove oil late june 26000
51 Fuel oil unloading Remove oil late june 600
52 Town water Remove oil late june 600
53 Spare step up at NPS Remove oil late june 50000
54 PPS PPS Met vickers step up x 4 Remove oil late june 4 x 69000
55 PPS Ferranti house Remove oil late june 36000
56 PPS Unit Remove oil late june 4 x 4000
57 PPS Aux Remove oil late june 4 x 700
58 PPS GP Remove oil late june 1400
59 PPS ASH Remove oil late june 1400
60 PPS coal line starter Remove oil late june 2100
61 Spare unit at PPS Remove oil late june 1300
Batteries
total 565900 litres
62 Various NiCad Lithium NiMetal hydride etc at N remove from site and dispose After shut down Unknown
63 Lead acid in disposal area at NPS remove from site and dispose After shut down Unknown
64 NPS Battery room batteries remove from battery room and put on pallet (outside) late june Unknown
65 NPS Battery room Batteries Remove from site late june Unknown
Mercury
66 Globes and mamometers etc at NPS remove from site and dispose After shutdown Unknown
Greases and permalubes
67 Workshop and stores at NPS remove from site and dispose After shutdown Unknown
Coolant
68 Cat diesels NPS Pump out and dispose late june 100 litre
69 PPS fire diesel pumps Pump out and dispose late june 100 litre
Appendix F
D I
I
McMAHON SERVICES a allestrin Mi=iMMi
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
JSEA Number AD 010
Project and Organisation Details
Project Site Port Augusta Power Station Project Manager Ross Fitzgerald Sign Phone 0439 034 900
Title CARTING MATERIAL FROM BORROW PIT CARTING ASH FROM
DISCHARGE LEVYrsquoS TO DEMO PLANT SITE Site Supervisor
Mick Oster Sign Phone
0400 923 758
Job Task Excavation of material from borrow pit or ash from discharge levyrsquo carting
material to demo plant site driving dump trucks on road way to demo site
Site Safety Advisor Louis Kokkinos Sign Phone 0409 222 087 1
Principal Contractor Flinders Power
Job Number 5201750 JSEASWMS Creation 10 Revision Number 1 Has a Project Risk Assessment Register been Developed for the Project
Implement the PRAR control measures and place into this JSEASWMS
Legislative Compliance Review Information referenced during the JSEA Planning ndash Record applicable document reference number and name below
Legislation Codes of Practice Standards Emergency Plan Procedures SWIrsquos Engineering Work Cover SDS Other
WHS Act 2012
WHS Regulations 2012
CoP Excavations Cop Mobile Plant
Project Emergency Plan
SWI 0400 Plant and equipment
SWI 0100 Manual handling
SWI 0327 Selection of Hand
Protection
Traffic mngmt amp Site movement of plant Environmental protection Act 1993 ndash EPA license 13006
High Risk Work Structural Collapse ChemicalFuelRefrigerant Lines Work in Tunnel Explosives
Fall from Heights gt 3m Demolition of Structures Energised Electrical Installations Mobile Plant Work Involving Diving
Disturbance of Asbestos Pressurised Gas Pipes Mains Contaminated Flammable Atmosphere Traffic Tilt-upPrecast Concrete
Excavation gt15m Telecommunication Towers Extremes of Artificial Temperature Confined Spaces Risk of Drowning
Qualifications Licenses Plant Equipment
LE Excavator ST Service Truck HS Dump Truck HR Truck Excavator Moxy truck Fuel Trailer and Service Truck Water cart
Permit Tick Required
Asbestos Daily Diary (F062)
Confined Space (F603)
Demolition (F285)
Excavation Penetration (F636)
Excavation Entry (F166)
Hot Work (F630)
Lifting Operation - Lift (F189)
Working at Heights (F676)
PPE Tick Required
Important
(1) Persons within 10m of noisy plantprocess must wear Hearing PPE
(2) Hand protection must be selected via SWI327 - manual tasks
(3) Double eye protection to be worn when grinding
IF PRINTED -Page 1 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin Mi=iMMi
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Potential Hazards This list may not identify all potential hazards present Visit the job site to ensure all hazards are identified and implement appropriate control measures in the JSEASWMS
Fire Ignition Sources
Will hot work be conducted Implement Fire prevention strategies
(Complete the Permit)
Refer to SWI344-Completing a Hot Work Permit Standard S023-Hot Work
Permit S002-Managing Risk of Risk in Fire Ban Seasons
Hazardous Substances Will work task involve contact with any Hazardous Substances
Refer to the SDS and consider specialised PPE precautions
Refer to SWI099-Accessing SDS SWI123-Handling Hazardous Subs
Environmental Impact- Vibration Noise Will vibration or noise emission extend beyond the project perimeter
Is vibration monitoring from demolition process especially when working near
heritage type buildings (Check the PRAR - F224)
Refer to SWI147-Environmental Management - Noise amp Vibration Control
Hazardous Manual Task
Will the worker be lifting moving objects or material
Workers to select controls measure based upon HIRAC
Correct lifting techniques Workers to stretch before and during task
Refer to SWI100-Hazardous Manual Tasks SWI102-Stretching Techniques
Services Will service isolation disconnection for plantequipmentinfrastructure
Any overheadunderground services within work area
Refer to SWI704-Service Isolation - Lock out Tag Out
Environmental Impact- Decontamination of Plant Equipment Will Plant Equipment and PPE require decontamination at the end of each
day and or when exposed equipmentplant is to leave the
asbestoscontaminated area
Refer to SWI147-Environmental Management - Noise amp Vibration Control
Excavations
Does the task require an excavation to be dug
Check for services prior to excavation (Complete the Permit)
Refer to Standard S053 - High Risk Construction Activity- Excavations
Emergency Preparedness Establish an emergency plan for the task
Refer to SWI082-Emergency Planning for Project Sites
Environmental Impact - Dust Will the task generate dust or is there a requirement for disposal of hazardous
waste
Refer to SWI148-Environmental Management - Dust Control
Working at Heights amp Falling Objects
Will the task require workers to work at height or around open
penetrations voids Are they trained to perform the task
Delineate areas where workers amp others may pass (Complete the Permit)
Refer to SWI 0085 - Prevention of Falls - Planning
Plant Machinery amp Equipment Will the plant work area be delineated away from other works
Is the operator ticketed licensed for this type of equipment plant
Refer to Standard S055 - HRCA - Safe Work Zone - Traffic Management SWI-
026-TicketLicencesCompetencies to Perform Work
Environmental Impact - Haz Substance Storage Spills Is there potential to release pollutants to drainrsquos marine waterways ground
atmosphere
Consider if any potential spill sources exist at the work area
Consider the need for bunds drip trays spill blankets absorption etc
Refer to SWI149-Environmental Management - Soil Erosion Drainage Management
Slip amp Trip Hazards
Will the task produce potential slip and or trip hazard (Material
Equipment)
Implement housekeeping strategies
Lifting Operations (Crane Lifts) Consider if work task involves crane lifts
Ensure a lift Permit has been conducted (Complete the Permit)
Refer to Lifting Operation - Lift Permit (F189)
Environmental Impact - Waste Disposal Will the task create prescribed waste requiring special disposal
Refer to SWI152-Environmental Management - Waste and Recycling
Task Security Nearby Works
Will barriers delineation be required to exclude personnel or vehicles
from the work area
Refer to Standard S051 - HRCA - Safe Work Zone - Site Security
Cuts and Abrasion Is there a risk of cuts abrasion
Consider task separation or adequacy of PPE
Refer to SWI327-Selection of Hand Protection
Environmental Impact - Cultural Heritage Could the task uncover indigenous or European artefacts
Could the task impact on heritage buildings structures
Refer to SWI154- Managing Cultural Heritage Protocol Uncovering Artefacts
Customer and Surrounding Property
Consider the potential risk to neighboursrsquo property
Consider potential damage to customer property nearby
Refer to Standard S051 - HRCA - Safe Work Zone - Site Security
Traffic Management Consider how construction traffic will access and egress the workplace
in a safe manner
Refer to Standard S055 - HRCA - Safe Work Zone - Traffic Management
Asbestos Consider if personnel may be exposed to asbestos during this task
If unsure check the Asbestos Register
Refer to SWI 0349- Planning and Asbestos Removal Task SWI 0233 Friable
Asbestos Personal Decontamination Process
Weather Conditions Working Outdoors
Does the weather pose a risk to a workerrsquos health Safety or the environment Consider the ambient conditions associated hazards Consider precautions to prevent exposure to
heatcold
Noise Will the work create higher noise levels Consider the need for hearing protection in the work area
If hearing PPE is deemed as required then all workers in a 10-metre radius (minimum) of the noise source must wear hearing PPE
IF PRINTED -Page 2 of 9 104 Exploration Dr Karratha UNCONTROLLED 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
-
-
-
-
the hazards
C V 0 Ugt ts
Level2 e ~
Ugt 0 Substi tute the hazard with someth ing co
Q) b safer E J e co Isolate the hazard from people Ugt
C -0 8 C Reduce the risks through engineering co
s contro ls a 1ij ~ Q)
V c s a _]
ai ai Level3 0 gt Q)
_J
Reduce exposure to the hazard
V using administrative actions
V Use personal protective equipment
LOWEST L E A S T
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Hazard Analysis and Control Worksheet
Step 1 Consequences (Severity)
1 Insignificant bull Cause a near miss needs to be reported
bull Limited impact to a local area but no long-term effects
2 Low bull Injury requiring First Aid treatment and or short term discomfort
bull Localised short to medium term impact to the environment
3 Moderate
bull Potential for injury resulting in medical attention
bull Localised medium to long term impact to the environment
bull Damage to plant property
4 Major bull Serious injury Long term disability
bull Widespread or off-site release medium to long term impact
bull Major financial loss damage to plant Loss of production capability
5 Extreme
bull Potential to be fatal Permanent disability
bull Release off-site with detrimental widespread irreparable environmental damage
bull Destruction of property or plant Huge financial loss
Step 4 Action Plan
Low Minimal risk monitor where work changes
Moderate Some action may be required
Supervisor to determine and monitor
High Activity Must be reviewed by Project Manager and have additional risk controls built into the SWMS and work procedure
Extreme
Activity to be re-planned andor re-designed
Must reduce risk immediately ndash highest priority Work is not commencing until appropriate controls are in place
Hierarchical of Controls
Control measures must be ranked from the highest level of protection and reliability to the lowest This ranking is known as the hierarchy of control The higher order controls must always be considered first
If residual risks are ranked as lsquoHIGHrsquo the team shall determine the adequacy of controls and consider further risk reduction strategies (Refer to step 4 - Action Plan)
Step 2 Potential (Likelihood)
A Certain to Occur
Expected to occur in most circumstances
B Likely Will probably occur in most circumstances
C Possible Might occur at some time
D Unlikely Could occur at some time
E Rare May occur only in exceptional circumstances
Step 3 Risk Matrix Consequence
Insignificant Low Moderate Major Extreme Level 1 Level 2 Level 3 Level 4 Level 5
Lik
eli
ho
od
Certain to Occur (A) H H E E E
Likely (B) M H H E E
Moderate (C) L M H E E
Unlikely (D) L L M H E
Rare (E) L L M M H
IF PRINTED -Page 3 of 9 104 Exploration Dr Karratha UNCONTROLLED 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
bull
-iW=iMdbullMi McMAHON q a allestrin SERVICES 1ntract ft_ -_ __
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Job Safety Environmental Analysis (JSEA) Safe Work Method Statement
Step Process Steps Potential Hazards Inherent Hazard Control Measures Residual No List the steps needed to do the Against each step list potential hazards that Risk For each hazard identify control measures to eliminate or minimise the risk of Risk Action by
job in the sequence to be done could cause injury when the jobrsquos done Rating injury (hierarchy of controls) Rating (Print name of person)
1 Pre-start talks with Michael Atkinson Ben Knoop Louis Kokkinos and Mick Oster to determine dumping area within live demo plant
Miss communication between civil and demo team causing work crew overlap hazards such as collision with demo plant personnel or LV
H Consultation in site office dumping area in live demo plant to correctly locate dumping zone Visually inspect demo plant and personnel near dumping zone Identify the need to use 2-way communications on channel 27
L Michael Atkinson
Louis Kokkinos
Mick Oster
Ben Knoop
2 Establish one way hauling routes for dump truck drivers ndash Pre-drive route with Mick Oster Louis Kokkinos and Ben Knoop
Interaction or collision with other plant people or vehicles in the area or on route Demo plant LV or personnel unclear or unaware of one-way route
H Pre-drive route and communicate traffic management plan to dump truck drivers Ensure dump truck drivers understand one-way route by providing them with guided tour and escort Provide map of route to drivers Drivers must adhere to traffic management plan Drivers must not drive on other road ways within live demo plant Dump truck drivers must use 2-way radio to announce arrival and departure at live demo plant on haul roads and dumping area
L All personnel signed onto this document
Dump truck drivers speeding on haul E All dump truck drivers must not exceed MAX 20 Kmh in demo area H All personnel signed roads or making contact with overhead at all times Dump truck drivers must assume that over lapping demo onto this document hazards such as light poles or electrical work crew will not expect them to be in their work zone and should lines prepare to stop or give way at any time Dump truck drivers must
not raise tubbed or unload in any area other than designated areas as per attached map
Demo crew not aware of us in their work H Demo supervisor must brief work crew of civil and demo crew L Demo crew and zone or one-way haul roadsroute - interactions and provide work crew and plant operators with map of team Interaction of heavy light vehicle resulting civildump truck hauling roads and one-way areas Demo work crew in accident causing injury plant damage plant LVs and personnel must avoid civil haul road areas if
practicable to do so
3 Civil work crew within demo site
High risk works associated with movements of mobile plant contact with plant and personnel crush injuryrsquos or the potential for death
E Dump truck operators must not exit cabins in active demolition areas unless itrsquos for an emergency or vehicle has broken down Drivers must wear hard hats and safety glasses if in the active demolition site 2-way radio to be used to communicate emergency situations or any requirements to exit truck cabins Existing muster points apply for civil team
M All personnel signed onto this document
4 Suppressing dust Dust arising from borrow pit activities hauling on roads or carting or excavating levy ash creating health environmental damage or concerns
H Implementation of 3 level Trigger Action Response Plan must be utilised when monitoring dust levels during ongoing works Use of water cart on haul roads and any other areas where dust suppression is required
L All personnel signed onto this document including water cart operator
IF PRINTED -Page 4 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Step No
Process Steps List the steps needed to do the job in the sequence to be done
Potential Hazards Against each step list potential hazards that
could cause injury when the jobrsquos done
Inherent Risk
Rating
Hazard Control Measures For each hazard identify control measures to eliminate or minimise the risk of
injury (hierarchy of controls)
Residual Risk
Rating Action by
(Print name of person)
Ash material drying out causing dust to become airborne and leave the site boundary causing environmental harm
H Constant monitoring of area to ensure material is wet down and suppressed Capping material to be placed on ash to prevent becoming airborne and suppressed with water as necessary to prevent dust becoming fugitive Direct dumping and immediate spreading to avoid stockpiling of ash causing unnecessary dust
L All personnel signed onto this document including water cart operator
5 Dumping ash material in PPS A station basement area Excavating ash from levee
Dumping on uneven surface causing risk of tray tipping over
H No dumping on uneven surface unless the use of spotter and the cab is not articulated Always tip with the cab and tray in line to avoid tipping tray Assess ground conditions and drive to conditions at all times
L All personnel signed onto this document
Slumping of ramp levee and stockpile causing material to give way
H Operators to check condition of ramp levee and stockpile to assess area for cracking slumping and soft spots that could cause machine to become unstable
L All personnel signed onto this document
Tipping material without a tip head to back onto
H Operators are to follow instructions from the dozer excavator operator and are to tip short with a spotter so the dozer can push the material Dump truck operators must not tip short without the use of the spotter to guide into position via verbal or hand signals
L All personnel signed onto this document
Tipping over basement edge without tip head causing potential drop of machine and injury to personnel
H Operators to use established ramp at south end of basement as tip location to eliminate tipping over live edge Operators are to tip short with a spotter so the dozer can push the material into basement
L All personnel signed onto this document
IF PRINTED -Page 5 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
I I I I I I
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Step No
Process Steps List the steps needed to do the job in the sequence to be done
Potential Hazards Against each step list potential hazards that
could cause injury when the jobrsquos done
Inherent Risk
Rating
Hazard Control Measures For each hazard identify control measures to eliminate or minimise the risk of
injury (hierarchy of controls)
Residual Risk
Rating Action by
(Print name of person)
IF PRINTED -Page 6 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
D
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
How to Complete the JSEASWMS Process
1 When developing a JSEASWMS refer to the applicable Legislation Code of Practice and Company Standards 4 Each of the hazards identified must be risk rated hazard control measures defined precautions and
and Safe Work Instructions (Documents referenced in this JSEASWMS must be recorded on page one) equipment must be identified to reduce the risk
5 Responsibilities are allocated to each control measure defined in the JSEASWMS 2 The job is to be broken up into individual process steps 6 All workers involved in the task must review the document and it must be accepted by workers signing 3 For each step the potential hazards are identified
this JSEASWMS form
NOTE This is a legally binding document to which all workers must adhere
Approval
I the undersigned Supervisor confirm that I have checked all qualifications provided and verify that they are applicable and current I have also ensured that all inductions have taken place and that all tools and equipment are properly maintained and safe to use I have issued all relevant permits and have ensured to the best of my ability that the work area is safe and that the work will not damage any property or injure any persons
Supervisor Name Supervisor Signature Date 9th August 2017
Development amp Review
Initiators of JSEArsquos are responsible for consulting with supervisors engineers or other persons directly in charge of the work and any other personnel involved in the execution of the task (as appropriate) for input into the JSEASWMS during the development and review stages
Other persons may be consulted for technical advice or review of the JSEA to ensure that the proposed measures are effective and workable (Record names below)
The JSEASWMS shall be reviewed
(1) At the commencement of a new task (2) If a task changes (3) If a hazard been identified (4) At the JSEASWMS three-month anniversary
Developed Consulted By Reviewed By
Date 7th August 2017 Date 8th August 2017 Reason for review Change of TMP map and inclusion of TARP
Name
Name
Louis Kokkinos
Ben Knoop
Position
Position
Site Safety Advisor
Site Civil Engineer
Name
Name
Louis Kokkinos Position
Position
Site Safety Advisor Added step 4
Changed TMP map on last page
Name Mick Oster Position Senior Site Supervisor Name Position
Name Jamie Kirk Position Site Safety Advisor DEMO Name Position
IF PRINTED -Page 7 of 9 104 Exploration Dr Karratha UNCONTROLLED 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
JSEASWMS Sign off and Acceptance of Proposed Work Method and Associated Responsibilities
bull I the undersigned confirm that I have been consulted regarding the above JSEASWMS and that its content is clearly understood
bull I also confirm that my required qualification(s) etc to undertake this activity isare current and that I am competent to complete the work safely and without risk to my own or the health and safety of others
bull I clearly understand that the control(s) in this JSEASWMS must be applied as documented otherwise work is to cease immediately and I will ensure that the work area is made safe as far as is reasonably practicable
No Surname First Name Classification Employed by Signature Date
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20 bull
bull ASH D AM
bull ENTRANC E R OAD TO AUGUSTA POWER STATION
IF PRINTED -Page 8 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
bull
bull BORROW PIT
bull M
M
dg h
fff
fff
IF PRINTED -Page 9 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
Appendix G
Power
Augusta Power Stations
Dust Management Plan
Demolition and Site Rehabilitation
Flinders Power May 2018
Title Names Signatures Date
Approval Facility Manager APS
Approval Program Manager ndash Flinders Sites
Document History
Rev Date Amended by Description of Changes
Draft Initial Draft Version
Rev 1 24082016 Updated and changed to cover Make ndashSafe Period
Rev 2 09092016 Updated and changed to cover Demolition Period
Rev 3 05102016 EPA recommendations and corrections incorporated
Rev 4 05102016 Ash Storage Area dust management options modified
Rev 5 05112016 Final version incorporating EPA feedback
Rev 6 01022017 Revised following dust event of 1st and 2nd January 2017
Rev 7 03032017 Revised to address EPA feedback of 20th February 2017
Rev 8 09082017 Revised to address excavation transport and use of ash for backfill
Rev 9 08122017 Revised to incorporate changes as per EPA letter of 6 December 2017
Rev 10 03012018 Revised to address proactive watering of the former coal stockpile
Rev 11 25052018 Revised to address the capping of the former coal stockpile area
Rev 12 15618 Revised to add seeding of the former coal stockpile area
Printed copies are uncontrolled Please ensure you are referring to the most current version 1
AindersPower
Contents 1 Introduction amp Purpose 3
2 Background 4
3 Setting 5
Stockpile 5
Ash Storage Area 5
Coal Conveyor System 6
Coal Storage Bins 6
Roadways 7
Demolition Activities 7
Utilities Available During Demolition 8
5 Environmental Conditions 14
EPA Notification of Process Changes 14
Licence Conditions 14
Ambient Dust Monitoring ndash TSP amp PM10 17
Speciation 20
6 Dust Management Plan (DMP) 21
Plan Stakeholders - Roles and Responsibilities 21
Implementation and Control Actions 23
Table 1 Aspect and Control Action 1 Coal Stockpile Operations 24
Table 2 Aspects and Control Action 2 Ash Storage Area Management 26
Table 3 Aspects and Control Action 3 Coal Conveyor System and General Site 28
Table 4 Aspects and Control Action 4 Site Roads (General Conditions) 29
Table 5 Aspects and Control Action 5 Demolition Activities 30
7 Ash Storage Area ndash Dust Management 32
Whole of ASA Dust Suppression Treatment 32
Trigger Action Response Plan ndash Ash Storage Area 32
8 Former Coal Stockpile Areandash Dust Management 37
Trigger Action Response Plan ndashStockpile Revegetation 37
9 Dust Monitoring and Evaluation 39
10 Community and Stakeholder Engagement 40
101 Complaint Management 41
References 42
Appendices 43
Printed copies are uncontrolled Please ensure you are referring to the most current version 2
AindersPower
1 Introduction amp Purpose Flinders Power operates the Flinders assets which comprise the Northern and Playford Power Stations in Port Augusta (known collectively as the lsquoAugusta Power Stationsrsquo (APS)) as well as the Leigh Creek Coal Mine Flinders Power also formerly maintained a dedicated rail line between Leigh Creek and Port Augusta
Flinders Power is strongly committed to sound environmental management as demonstrated within the board-endorsed Environment amp Community Policy The Policy states a commitment to partnering with the communities in which Flinders Power operates and a focus on continual improvement of environmental performance
The nature of the operation if poorly managed has the potential to create fugitive dust emissions which may adversely impact on the amenity of the local community Therefore the objectives of dust control are to
1 Minimise and control the impact of Flinders Power closure activities on air quality and emission of dust from site operations
2 To ensure compliance with EPA Licence requirements
3 Maintain environmental amenity and a strong relationship with the local community and regulatory authorities
To achieve these objectives a Dust Management Plan (DMP) has been formed The objectives of the DMP are to
bull Nominate potential sources of dust emissions
bull Describe methods and responsibilities for dust management controls to minimise the potential for impacts to the environment
bull Clearly define the responsibilities and actions required to respond to environmental incidents
bull Outline the methods to communicate and engage with the local community in relation to dust management and
bull Outline the monitoring and reporting arrangements to ensure ongoing compliance with the DMP
Scope This plan applies to activities covered under
bull EPA Licence 13006 (Northern amp Playford Power Stations)
This document is also part of the site Environmental Closure and Post Closure Plan where specific activities and responsibilities for performing dust management measures are assigned to the appropriate parties During the site demolition process Flinders Power has specific responsibility for areas not covered by the plant demolition project These areas the Ash Storage Area and the Coal Stockpile Pad are subject to separate rehabilitation and revegetation projects covered in the Environmental Closure and Post Closure Plan
Dust management activities involved with the decommissioning and demolition of the plant and structures on site are covered in the demolition plans developed under the Project Alliance Agreement
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AindersPower
2 Background
The Playford Power station (PPS) ceased operation in April 2012 The Northern Power Station (NPS) ceased operation on the 9th May 2016
NPS and PPS utilised a supply of coal delivered daily by train from the Leigh Creek Coalfields After combustion in the boilers ash was collected from the bottom of the boiler mixed into a seawater slurry and transferred to the Ash Storage Area by pipeline Fly ash from the exhaust gas was captured by electrostatic precipitators at NPS bag house filters at PPS and then sold to secondary users with the excess transferred to the Ash Storage Area
The Ash Storage Area was continually filled with deposited ash and sea water slurry from the boilers The nature of this mixture allowed the surface to form a salt crust when it dried out - due to the ever-changing location of the deposition field creating high areas of ash During heavy rain this surface crust was occasionally damaged allowing winds to disturb the ash and potentially blow it off site
There was also a flooding regime for the Ash Storage Area whereby internal levees were built up filled with an ashwater mixture and then quickly released to allow for a large portion of the surface of the Ash Storage Area to be flooded so that a salt crust could re-form on top This management strategy changed in October 2016 due to the erosive effects of utilising a pure seawater flooding technique (as opposed to an ash and seawater slurry) and the increased risks associated with dust generation In November 2016 the 212Ha Ash Storage was sealed utilising a dust suppressant applied by air and land
The coal stockpile at Augusta Power Stations was designed as an emergency supply should mine site or railway operations be impacted Historically the coal stockpile has been used on only intermittent occasions However during the last few years of operation due to increased variability in load profile in response to increased volatility in the SA energy market the stockpile was utilised as a dynamic stockpile The movement of coal on the stockpile became a frequent activity to meet strategic stockpiling or generation output needs as required The increased use of the stockpile increased the risk of fugitive dust emissions
To reduce these impacts during operation there were established Operating Instructions relating to the methods of stockpiling and reclaiming coal from the stockpile the use of water cannons for wetting down the stockpile the use of a water truck for applying dust suppressant to the surface of the stockpile water and a description of weather conditions for operations on the stockpile
Whilst these actions were effective in reducing dust emissions from the stockpile and Ash Storage Area a change in strategy continued monitoring vigilance and innovation is required to maintain control over dust emissions during the demolition and site rehabilitation phase
Other identified sources of minor fugitive dust during this phase include roadways and during demolition of coal and ash handling plant
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AindersPower
3 Setting
The township of Port Augusta is located approximately 300km north of Adelaide on the northern tip of Spencer Gulf and has a Dry Arid Low Latitudes climate
Figure 2 demonstrates the seasonal wind patterns for the region including wind direction and wind speed The charts indicate that strong regular southerlies are dominant during the summer season Port Augusta township especially the suburb of Willsden is potentially affected by fugitive coal dust and ash for most of the year except during winter when the dominant wind direction changes from southerlies to northerlies
Stockpile
The distance between the coal stockpile and the closest residents in Port Augusta to the north is approximately 35km (refer to Figure 1 below)
Coal formerly arrived from the Leigh Creek mine in open rail wagons and was bottom dumped via the rail car dumper on the rail line near the coal stockpile It was then conveyed to either the main coal storage bins for immediate use or to the stockpile for storage
Maintaining the moisture level of the coal to a point where surface dust mobilisation is decreased from the stockpile was achieved by the use of water cannons on the stockpile
The coal stockpile has been decommissioned and as of September 2016 the pad was being rehabilitated and revegetated A sprinkler system has been established over the surface area to promote vegetation establishment and control dust
Ash Storage Area
Waste ash from the boilers and the electrostatic precipitators was formerly mixed with seawater and piped to the Ash Storage Area
Deposited ash formed a salt crust due to the evaporation of water from the mix which stopped the ash from being mobilised and entrained by wind into the airshed
The levees on the edges of the Ash Storage Area were periodically raised to allow for a greater ash holding capacity
During the operational period ash could enter the airshed during windy periods when the surface crust was damaged by heavy rain and after heavy machinery working on the ash dam has broken up the surface A map of the Ash Storage Area in shown in Figure 3 with flood coffer dams numbered and the direction of floodwater flow during surface flooding events indicated
Following NPS closure a number of measures were taken to control dust lift-off from the Ash Storage Area including the installation of new pipework to ensure continued seawater supply the construction of new coffer dams and the use of a temporary pump and pipework from Playford Periodic filling of the coffer dams and breaching enabled seawater to flow out and re-establish a crust However this continued operation was progressively causing erosion to the surface of the dam and the banks of the coffer dams and certain areas such as the central discharge point were unable to be reached by flooding In August 2016 a 15Ha area adjacent the original slurry discharge point was sealed with dust suppressant applied by cropduster This treatment was successful in containing dust from this area Continued flooding to the east and west of this location caused
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AindersPower
further damage and in October 2016 it was decided to change strategy from seawater flooding to sealing the entire dam surface with dust suppressant
These measures were intended to achieve short-term dust control particularly during summer 201617 while the long-term rehabilitation plans were being implemented These actions are referenced in Implementation and Control Action 2
In late December 2016 a major storm event impacted the dust suppressant seal causing areas of ash to be re-exposed On the 1st and 2nd January 2017 a dust event occurred whereby windblown dust was generated from the surface of the dam
Reapplication of the dust suppressant was conducted throughout January 2017 with a seal re-established by 25th January 2017 Commencement of earthworks also occurred during this period with the opening of an adjacent borrow pit and the commencement of construction of topsoil lsquofingersrsquo across the surface of the dam
At the time of updating the Dust Management Plan approximately 180ha of the Ash Storage Area had been covered with soil with the completion of five east-west access fingers Seeding had occurred over 140ha of the site
Coal Conveyor System
The coal conveyor system begins at the train unloading facility at NPS Coal was directed either to the coal storage bins or the coal stockpile by the conveyor system Coal from the storage bins was conveyed to PPS or NPS as required The coal conveyors are enclosed and the transfer points are inside a number of enclosed towers to reduce dust emissions
Fugitive coal dust was formerly washed down daily from the inside of the conveyor enclosures and the transfer towers The effluent was captured in sumps underneath the towers where the coal dust sediment was collected and returned to the stockpile area
Following closure clean-out of the conveyor lines and transfer towers occurred with all accessible coal washed to the ground where it could be contained and disposed These control actions are described in the APS Environmental Closure and Post-Closure Plan
Short term coal dust management measures are being applied during the demolition and rehabilitation phase This is referenced in Implementation and Control Action 3 amp 5
Coal Storage Bins
There are three Coal Storage Bins at NPS with a capacity of 18000 tonnes located to the west of the stockpile These are enclosed with a tripper on top conveyors and ploughs on the bottom conveyors Both of these are enclosed to reduce dust emissions
Coal bins at Playford were decommissioned and emptied in 2012
Following closure clean-out of the NPS bins occurred with all accessible coal washed to the ground where it could be contained and disposed These control actions are described in the APS Environmental Closure and Post-Closure Plan
Short term coal dust management measures are being applied during demolition of the bins This is referenced in Implementation and Control Actions 3 amp 5
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AindersPower
Roadways
There are a number of roadways sealed and unsealed around the site where dust settles and aggregates Road vehicle speeds are kept to a 20 kmh limit on most roads with two roads on site having a 40kmh limit for both safety and environmental considerations
The Ash Storage Area is surrounded by a levee system allowing vehicle access on top Windblown ash can settle on the roadways and this is periodically sprayed with dust suppression chemical and wet down with a water truck to reduce dust lift off
Dust control measures used pre-closure are continuing during the closure process This is referenced in Implementation and Control Action 4
Demolition Activities
Flinders Power (FP) and McMahon Services Australia formed an Project Alliance Agreement in May 2016 to facilitate the successful delivery of the site demolition program
The Alliance is a unified team to jointly manage the planning asset salvage and decommissioning works of the Augusta Power Stations The successful delivery of this project relies on the combined efforts of both FP and McMahon Services and the pooling of knowledge experience and expertise under the Alliance is the best contractual means to deliver the complex closure program The Alliance will see the partnership of both the Owner Party (FP) and Non-Owner Party (McMahon Services) to create a single team working unanimously collaboratively and cooperatively and acting in good faith to make best-for-project decisions
FP have invaluable knowledge and expertise about the Augusta Power Stations This knowledge is integral to ensure the safety of all personnel and management of environmental risks McMahon Services has over 25 years of decommissioning experience conducting high risk demolition and hazardous materials removal works at sites across Australia McMahon Services are a licenced entity by the SA EPA and are accredited to ISO 14001
Each module of works within the delivery phase is defined by a unique scope of work with Flinders reserving the right to let independent work scopes
Potential dust generating activates identified in the Project Risk Assessment Register include
bull Stack felling
bull Bin felling
bull General demolition activities
bull General civil works and
bull General site traffic
Dust management measures are being incorporated into the demolition control plans as referenced in the APS Environmental Closure and Post Closure Plan and Alliance Demolition Plans
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AindersPower
Utilities Available During Demolition
The majority of electricity used by major plant at the station was formerly provided by onsite generation Following closure there remain a number of small electricity supplies to the site mainly into offices and workshops though the main infrastructure utilised for dust control is provided by large standalone portable generators A number of water pumps are used around the Ash Storage Area for seepage water and a portable diesel water pump can be deployed as required
Seawater has been previously pumped from the cooling water inlet screens of NPS to the Ash Storage Area via an agreement with a third party to access power supplies Additional pipework and outlets were installed on the southern side of the Ash Storage Area for targeted seawater flooding Additional seawater was also obtained from the Playford Station seawater inlet using a portable diesel water pump for flooding the south-western corner of the Ash Storage Area
Mains water at high pressure off the SA Water mains pipeline is also available on site and is utilised for stockpile revegetation
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I
bull ~ - __ i ----
middot1 ------ --bull- __ _
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i 1 i
~--~ V i ~ I
yen 1
I i I l
7 - -+ i i
middot1
i
I l i jL-________________ _ 0 )OOlaquor0ffi o~middot-=------ Naa-est RB51denDaJ Receplen
FIGURE 1 0 us1 Monilltribulli Loootion
AindersPower
Figure 1 Location of the Port Augusta and Stirling North Communities in relation to the APS Site and Coal Stockpile (after Aurecon 2010)
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---
WW SPEED (mis)
bull gtbullIII
- 8 8 11 1 5 7 - U
D 3Cbull 67
D 21 - 3C
D o5bull 21
AindersPower
Wind shadow directions Port Augusta Lgt Stirling North y7
Figure 2 Seasonal Wind Profile
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sJ RAHPn
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1 RAMP13
Figure 3 Ash Storage Area map showing numbered flood coffer dams and direction of floodwater flow during surface flooding events
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Fp RindtrsPower
4 Supporting Documentation
The following document map outlines the role of the Dust Management Plan in meeting compliance obligations
Governing Legislation
EPA Authorisations Plans Appendices amp Supporting Documents
Environmental Protection Act 1993
EPA Licence 13006
Condition 11 Dust Prevention
Condition 22 Complaints Register
Condition 23 Develop and Implement Closure and Post-Closure Plan
APS Dust Management Plan (this document)
FPP Incident Management System
Environmental Closure and Post Closure Plan ndash Augusta Power Stations (Rev10 25 May 2018)
Appendix A Ash Dam Interim Sealing ndash Proposal 7th November 2016
Appendix B Ash Dam Interim Sealing ndash Risk Assessment 2nd
January 2017
Appendix C Complaint Handling Procedure
Appendix D Fugitive Dust Trigger Action Response Plan (Rev6 3rd
January 2018)
Appendix E Ash Storage Area ndash Extreme Weather Monitoring amp Response Plan (3 March 2017)
App A ndash Detailed Risk Assessments
App B ndash NPS Make Safe Manual
App C ndash PPS Closure Manual
App D ndash Closure amp Care Project Plan
App E ndash Chemical amp Oil Management Plan AppE1 ndash Chemical Manifest amp Removal Scope
App F ndash Demolition Alliance Supporting Plans
App G - APS Dust Management Plan (this document)
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Fp RindtrsPower
App H ndash Project Risk Assessment Register
Condition 26 Generic Contingency Plan Augusta Power
Station Emergency Response Plan
Condition 27 Pollution Control Refer Ellipse Equipment Register Maintenance
Management System
Environmental Compliance Agreement (2000)
Section 1 Definitions Flinders Power and Interpretations APS Ash Storage
Area End of Life Plan Draft Cost Estimate (14th
February 2000)
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Fp RindtrsPower
5 Environmental Conditions
The Augusta Power Stations operate according to the Environment Protection Act 1993 (SA)
The EP Act 1993 states the principle of a ldquogeneral environmental dutyrdquo
Part 4mdashGeneral environmental duty 25mdashGeneral environmental duty (1) A person must not undertake an activity that pollutes or might pollute the environment unless the person takes all reasonable and practicable measures to prevent or minimise any resulting environmental harm
The operation of the coal handling and storage system is an authorised activity under an Environmental Authorisation (Licence) under Part 6 of the EP Act provided by the EPA
EPA Notification of Process Changes
According to the requirements of the Environment Protection Act 1993 and Licence Condition 42 the EPA must be notified when there is a proposed change to operating conditions that
bull May increase emissions or alter the nature of pollutants or waste or
bull May increase the risk of environmental harm or
bull Would relocate the point of discharge of pollution or waste
Further in accordance with section 83 of the Act the EPA must be notified when serious or material environmental harm is caused or threatened
FP commits to ensuring compliance with these obligations
Licence Conditions
The Northern and Playford EPA licence (13006) states specifically the activities for which APS undertakes
Licensed Activities
The Licensee(s)
-Flinders Power Holdings GmbH Flinders Labuan (No 1) Ltd Flinders Labuan (No 2) Ltd is (are) authorised to undertake the following activities of environmental significance under Schedule 1 Part A of the Environment Protection Act 1993 (the Act) subject to the conditions of licence set out in the attached pages
1(5)(a) Petroleum storage 2(1) Abrasive blasting 7(3)(C) Crushing grinding or milling works (rock ores or minerals) 7(5) Coal Handling amp storage 8(2)(a) Fuel burning coal or wood
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Fp RindtrsPower
8(7) Discharges to marine or inland waters (heat or antibiotic or chemical water treatments)
8(6a)(a) Desalination plant that discharges wastewater to the marine environment
Licence 13006 (issued 01 January 2015 and as amended 30 August 2017) contains the following condition relating to dust on site
S-9 Dust Prevention
The licensee must
bull Take all reasonable and practicable measures to prevent dust leaving the Premises bull Develop a Dust Management Plan to the satisfaction of the EPA and bull Implement the Dust Management Plan approved in writing by the EPA (or any revised
plan approved in writing by the EPA)
Accordingly Augusta Power Stations operates the former coal stockpile coal handling plant and the Ash Storage Area in such a manner to reduce its effects on the environment including the roads to and from the stockpile and the levees on the ash storage area
The following licence conditions relate to ambient air monitoring
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1 AMBIENT A IR MONITORING (U - 5741
Tlhe Licensee must
31 1 install and operate a continuous meteorological monitoring station al a location within lhe Premises appmved in writing by the EPA
3 1 2 oontinuousily monitor ambient PM1Cl concentrations using an Ecotech Eshysampler Particulate Monitor (or other comparable equipment) at llocatio111s within themiddot Premises approved in writing by the EPA
3 1 3 oontinuousily monitor ambient PM1Cl concentrations using an Ecotech Met One E-Bam Particulate Monitor (or other comparable equipment) at such locations as may be d esignated in writing by the EPA including locations at Lea Memoria l Oval in Port Augusta and at Stirling North
a provide rea l-lttime public access to the monitoring data collected pursuant to ihis clause
b rnotify the EPA in writing of a ny resul ts of monitoring underlaken pursuant to ihis clause w hich indicatemiddot an exceedance of a mbient PM10 concentrations of 50 m icrograms per cubic metre for a 24 hour average period Notification to the EPA must occur within 24 hours of the exceedanoe
c incilude in any notification given pursuant to this clause the actions taken in response to the exceedance in order to mitigatemiddot impacts of PM10 from the Premises on the community
3 1 4 assess and interpret the results of monitoring undertaken pursuanl to th is condit ion to inform the impl ementation of dust mitigation and mana gemenl measures lbased on site-specific trigger valu es set out in the approved Dust Management Plan dated 03 Mardh 2017 or any oobsequent version approved in writing by the EPA
3 1 5 submit to the EPA on a monthly basis a summary of monitoring results for each 24 hour average peniod of ambient PM10 co ncentrations
31 6 upon req uesl of an Authorised Officer provide results of any moniloring undertaken pursuant to ihis condition
NOTES
Condition appticalile to Flinders Power Licence 13006
Fp RindtrsPower
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2 AMBIENT MONITORING A ND REPORTING (U - 6601
The licensee must
321 continuously monilor ambient sulphur dioxide and ambient nilrogen di oxide at a location (or locations) within the Port Augusta township approved in writing by the EPA
322 monitor ambient particulate concentrations (TSP and PM10) using a highshyvolume ai r sampler to determine the 24 hour average at freque111cies and location (or locations) within the Port Augusta or Stirling North township approved in writing by the EPA
323 undertake an investigatio11 to determine the source of any exceede11ce(s ) a11d provide to the EPA the outcomes of lhe i11vestigation if followi11g levels are exceeded at any monitor ing location(s)
a Sulphur dioxide 571 micrograms per cubic metre (detenmi11ed as a one hour average)
b Nitroge11 Dioxide 246 micrograms per cubic metre (determined as a 011e 11our average) a11d
c Ambient particulate oonce11trations (PM10) SCI micrograms per cubic metre (detem1ined as a 24 hour average) and
324 nolify the EPA wilhin seven days of a11y su~ hur dioxide exceedence as measured at the monitoring location(s) referred to in sub-condition 1 and
325 notify themiddot EPA in writing of any results of monitoring undertaken pursua11t to sub-condition 2 which indicate an exceedance of ambient PM10 con centratior1s of SCI micrograms per cubic metre for a 24 hour average period Nolificatio11 to the EPA musl occur within 24 hours of the exceedance
a include in a11y notification given pursuant to this clause the actions taken in response to the exceedancemiddot in order to mitigate impacts of PM10 trom the Premises on the community
326 submil to the EPA on a mo11thly basis a summary of monitoring results for ambient particulate concentrations (TSP and PM10) ambient 11itrogen dioxidemiddot and ambient sulphur dioxide
Fp RindtrsPower
Ambient Dust Monitoring ndash TSP amp PM10
To monitor the ambient air dust levels across the community there are a number of High Volume Air Samplers (HVAS) at strategic locations in Port Augusta and Stirling North There are two types of HVAS a total suspended particulate (TSP) type which samples all of the dust in the air and another for particulate matter 10 microns and smaller in diameter (PM10)
The following sets out the agreed ambient monitoring arrangements (per EPA authorisation of 30 August 2017)
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( middot~
Stir ling North Real-Time PMlO Community Monitor Contingency PMlO High-Volume Monitor
Fp RindtrsPower
Sign in
Operational Monitors
- Three Ecotech E-Sampler Particulate (PM10) Monitors (lsquoProtinus 1000rsquo) have been installed as follows
o The South Operational Monitor located on the southern Ash Storage Area boundary
o The East Operational Monitor located on the eastern Ash Storage Area boundary
o The North Operational Monitor located on the northern boundary of the Polishing Pond at the closest point of site to Port Augusta residences
- The units record real-time data at 5-minute intervals Data is available via the Ecotech online reporting system Eagle The SA EPA has been provided access to the Eagle system
- The system provides real-time trigger alerts to Flinders Power staff by email and SMS Alarm thresholds are defined in the Flinders Power Fugitive Dust Trigger Action and Response Plan
- A summary of data namely the monitoring results for each 24-hour average period of ambient PM10 concentrations will be provided to the EPA on a monthly basis
Real-Time PM10 Community Monitors
- Two Exactus Beta Attenuation Monitors (BAM) have been installed within the nearest identified sensitive human health receptors to the site one each at
o Lea Memorial Oval representing the closest community receptor in the dominant downstream wind direction from the site and
o Stirling North Primary School representing the background concentrations of regional dust conditions It also acts as a secondary community monitor for fugitive dust emissions from the site during south-westerly wind conditions
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Fp RindtrsPower
- Data is collected on a 10-minute average basis Data is available via the online reporting system Eagle The SA EPA has been provided access to the Eagle system
- The system provides real-time trigger alerts to Flinders Power staff by email and SMS Alarm thresholds are defined in the Flinders Power Fugitive Dust Trigger Action and Response Plan
- A summary of data namely the monitoring results for each 24-hour average period of ambient PM10 concentrations will be provided to the EPA on a monthly basis
- The data collected from these monitors will be utilised for community monitoring against the 24-hour ambient particulate concentrations limit (PM10 concentration of 50ugm3) Data from these monitoring stations is made publicly available in real-time at wwwflinderspowercomau
- A trigger alarm (via email) has been set whereby project staff will be alerted by email if there is an exceedance of 50 micrograms per cubic metre of air over a 24-hour average period Flinders will notify the EPA within 24hours should this occur along with an interpretation of the conditions of the day and details of any remedial actions were undertaken at the site
Daily Total Suspended Particulate (TSP) at Lea Memorial Oval
- A high-volume air sampler is located at Lea Memorial Oval and will be run each day to collect TSP data The filter paper will be kept on record for further analysis if required
- Three high-volume air sampler units will be located at the site and will be set to run on timer over weekends and public holiday periods
- The data is indicative of total dust in the vicinity of the monitor
- A summary of data namely the monitoring results for each 24 hour average period of ambient TSP concentrations will be provided to the EPA on a monthly basis
Contingency PM10 and TSP Monitoring Sites
- A contingency PM10 high-volume sampler will be retained at
o The Port Augusta Pigeon Club
o The Port Augusta Tennis Association
o Lea Memorial Oval
o Stirling North Primary School
- A contingency TSP high-volume sampler will be retained at
o Port Augusta Hospital
- These samplers will be operated
- On days of high potential dust (eg days when charge felling of infrastructure occurs)
- If dust levels arising from site increase warranting an increase in the monitoring frequency
- During times of an outage of the real-time monitors at Lea Memorial and Stirling North
- Periodically for calibration purposes
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Fp RindtrsPower
Speciation
One of the challenges in undertaking ambient monitoring for dust within the community is differentiating coal ash and soil particles derived from operational activities as distinct from natural regional dust A key differentiator is wind direction and strength The wind direction and strength for the day of measurement is captured within data reports and used to assist determine whether particles may have derived from the APS site Another method used is colour ndash a filter paper of a red colour may indicate a high contribution of natural regional dust and is particularly noticeable during regional dust storms A filter paper of a grey colour can indicate a contribution from the ash dam however the natural urban dust and wood smoke from domestic heaters tends to also be grey in colour A very dark greyblack tinge can indicate the contribution from coal dust The township of Port Augusta and surrounding communities is located in a desert climate and is subject to frequent dust storms from the arid interior The analysis of historical high ambient dust results against weather events shows a strong correlation with regional conditions
Another key data input is local knowledge On certain days there may be local activities eg development of the Central Oval or mowing at the Lea Memorial Oval) that may be a key contributor to local dust These conditions are noted on the monitoring results database
Along with ambient air dust sampling dust collected from various locations around the site including along the railway and around the Ash Storage Area and town have been sampled to determine the coal and ash content
Other methods to identify the sources of dust collected at monitoring stations are continually investigated
The results of speciation work undertaken by the EPA or Flinders Power will be taken into account and the plan may be updated to reflect any requirements arising from these
In late 2016early 2017 the EPA conducted dust sampling and analysis at a monitoring station located adjacent to the Ash Dam and from a station within the Port Augusta community The results of the sampling including assessment from SA Health are available on httpwwwepasagovaubusiness_and_industryindustry-updatesflinders-power-port-augusta The results of the analysis indicated that whilst the toxicity of the ash particulate is considered low the particle size warrants proactive management of dust from the ash dam
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Fp RindtrsPower
6 Dust Management Plan (DMP)
Plan Stakeholders - Roles and Responsibilities
Positions in Flinders Power have been identified and assessed as having direct influence over parts of the process involved with managing dust on the APS site The responsibilities of such positions are described here to ensure clear and progressive lines of accountability and communication for the purpose of implementing this Plan
Facility Manager APS
bull Approve and support the DMP Ensure ongoing compliance with the DMP bull Authorise the resources required to implement this plan bull Custodian of the lsquoAsh Storage Area Contingency Plan ndash Extreme Weather Monitoring amp
Response Planrsquo ndash Appendix E bull Consult with the Environmental Coordinator to determine appropriate environmental
management strategies and contingency measures required by the DMP bull Install and maintain dust management infrastructure including dust suppression sprays and
cannons bull Report actual and potential environmental incidents bull Ensure sufficient resources (personnel materials and equipment) are available to respond to
high dust events bull Consult with the Environmental Coordinator with respect to the management of contractors
for decommissioning demolition and rehabilitation activities that may affect the integrity and effectiveness of the DMP
bull Maintain dust management infrastructure to ensure ongoing effectiveness and reliability bull Liaise with environmental and allied Regulators bull Notification to Regulators of any adverse dust events bull Notification to Regulators of any material changes to dust management controls and bull Consult and liaise with community stakeholders including proactive notification of
actualpotential dust events
Program Director ndash Flinders Sites
bull DMP document owner bull Review and approve the DMP bull Provide advice andor assistance to the Facility Manager APS to ensure the DMP is
appropriately implemented in the workplace bull Liaise with environmental and allied Regulators bull Ensure the FP website has current and accurate environmental monitoring data and bull Consult and liaise with community stakeholders
Environmental Coordinator
bull Manage stockpile and Ash Storage Area operations in accordance with the provisions of this plan in order to minimise the creation of fugitive dust
bull Provide advice and or assistance to the Facility Manager APS to ensure the DMP is appropriately delivered and followed in the workplace
bull Coordinate sampling of PM10 and TSP high volume samplers bull Ensure dust monitoring equipment is functional and accurate
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Fp RindtrsPower
bull Collation and reporting of environmental monitoring data bull Ensure dust and weather monitoring equipment is functional and accurate bull Collate and deliver daily environmental data including 5-day weather forecast dust risk
rating BOM dust alerts BOM severe weather alerts and previous period environmental monitoring data
bull Ensure proactive and reactive notification mechanisms are in place bull Maintain interpret and communicate dust monitoring results bull Investigate DMP non-conformances or dust quality exceedences bull Determine appropriate management strategies and implement contingency measures in
consultation with the relevant managersupervisor bull Complete all required Internal and External reports required by the DMP bull Ensure the Incident Management System contains the details of incidents and complaints
related to the DMP bull Service and maintain ambient monitoring equipment in accordance with OEM instruction and
the Environmental Monitoring Plan bull Publishing and provision of real-time and monthly data reporting to the EPA and community
and
FP Project Management Team
bull Manage stockpile and Ash Storage Area operations in accordance with the provisions of this plan in order to minimise the creation of fugitive dust
Land Management Team
bull Maintain the Ash Storage Area to reduce dust generation
bull Inspect the Ash Storage Area levees and batters along with site roads and perform dust suppression actions as required
bull Wash down coal dust and spillages from underneath conveyor structures and ash from under the boiler area
bull Maintain site vegetation and
bull Perform any other dust mitigation actions around site as necessary
Alliance Team members (FP McMahons Services and subcontractors)
bull Implement Alliance Plans including Environmental Management Plan bull Ensure appropriate dust management controls are applied for specific demolition activities
eg charge felling bull Undertake operation activities in accordance with relevant Flinders Power policies
procedures management protocols plans statutory licence and contract requirements bull Implement appropriate environmental management measures and bull Report actual and potential environmental incidents to the Facility Manager via their
supervisor
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Fp RindtrsPower
Implementation and Control Actions
The Implementation and Control Actions in the DMP are based on the following specific items
bull Design and use of plant and equipment so as to control and minimise dust bull Development and application of work procedures which reduce the potential for dust bull Use of dust suppression techniques on the Ash Storage Area coal storage and handling
areas and bull Development and implementation of auxiliary techniques to monitor weather conditions
affecting site in particular the Ash Storage Area in order to implement the Trigger Action Response Plan (TARP)
The following Tables (1 to 5) document the potential coal air qualitydust impacts with associated control plans
This has been developed by utilising the 2014 Aspects and Impacts Register as the basis to identify the locations or activities with the highest risk of dust generation on the site and updating these to reflect the requirements during closure activities
The locationsactivities have been ranked according to the highest residual risk for the environmental aspects contained in each
Table 5 lsquoAspects and Control Action 5 Demolition Activitiesrsquo specifically references the Alliance Project Risk Register which relates to dust control for demolition activities
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Rindmlower
Table 1 Aspect and Control Action 1 Coal Stockpile Operations
The following action plan relates to the revegetation of the former stockpile area
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
FPP Project
Management Team
Civil works on
stockpile pad
Preparation for
revegetation
Coal dust amp
wind blown
soil
Air quality EPP (Air Quality) Major Likely Extreme-8 Dust Management Plan Access
to area during low wind speeds
Water truck
Irrigation water
sprinkler system
Minor Possible Mod-5 wind
directionspeed
ambient monitoring
ad-hoc dust
monitoring
Operator
training
Closure period
23 Environmental Services Coal stockpile
management
Coal dust Air quality EPP (Air Quality) Major Likely Extreme-8 Dust Management Plan
Sprays Water truck
Project Group Minor Unlikely Low-4 wind
speeddirection
ambient monitoring
Operator
awareness
General
conditions
Inherent Risk Operational Controls
Augusta Power Stations Environmental Aspects and Impacts Register
General Control Matrix
Area Potential impact Potential contaminants Rehabilitation Controls Responsible personnel
Coal Stockpile and Tower Pad Heavy machinery generating dust while operating on or near the stockpile where coal is present during revegetation activities and prior to vegetation becoming established
Air qualitydust movement off site due to wind speed and direction
Coal dust soil and surface dust Capping and revegetation of the former coal stockpile and tower pad to prevent future potential fugitive dust emissions It is proposed to carry on with site civil works to cap the coal stockpile and tower pad areas and follow behind with seeding with native seeds at a rate of 15kg per Ha consistent with the Ash Storage area The coal stockpile and tower pad area has the advantage of the ability to irrigate which is expected to facilitate germination and growth of the native vegetation
FPP Project Management Team
Surface ripping during low winds (lt35kmhr) Cease work when wind speeds increase (gt35kmhr) Use of water truck to wet surface Allowing surface to harden Installation of irrigation system Revegetation of pad surface Daily monitoring by Project Manager and Land Management Team Additional revegetation as required
FPP Project Management Team
Use of dust suppression chemicals on open areas as required
Environmental Coordinator
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Rindmlower
Daily weather reports for wind speed amp direction forecasting and provide advice to team
Environmental Coordinator
Manually operate the sprinkler systems on forecasted strong wind conditions prior to forecasted conditions Install a remote activation system to allow operation in unforeseen or non-forecasted events quickly
Environmental CoordinatorFacility Manager
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Rindmlower
Augusta Power St ations Environmental Aspects and Impacts Register Ref No Responsible Activity Location Enviro Aspect Enviro Impact Legal amp other lnheren t Risk Operat ional Controls Residual Risk Monito ring Training Note
Oep tBronchSection requirements
(cause) (effect) Consequence Ukelihood Roting Primary Support Consequence Likelihood Rating
5 Environmental Services Ash storage dam Oust (Ash) Air quality EPP (Air Qua I ity) M ajor Almost Edreme-9 Oust Management Plan TARP APS Ash St orage Major Unlikely High-6 daily in spections
management emissions certain dust suppr ession chemical Dam Insp ection ambi ent monitoring
applicat ion t o surface and Check Ii st JSP234 Ash 3 mont hly
levees rea l -t ime PM10 disposal pipe laying inspections
mentoring at ash dam and JSP235 V ehicle
w it hi n com munity t ext alerts operation in Ash
BOM moni t oring of weather Pond area
prediction s
212 Environmental Services Ash sto rage dam Oust Air quality EPP (Air Qua I ity) M ajor Almost Extreme-9 Dust Managem ent Plan TARP APS Ash St orage Major Unlikely High-6 daily in spections
management (Red sand) certain dust suppr ession chemical Dam Inspection ambient monitoring
emissions appl ication t o surface and Checklist JSP235 3 mont hly
levees t rained vehicle Vehicle operat ion in inspections
operators real -t i me PM10 Ash Po nd area
mentoring at ash dam and
wit hin com munity t ext alerts
BOM moni t oring of weather
predictions
Table 2 Aspects and Control Action 2 Ash Storage Area Management
The following action plan relates to the management of the Ash Storage Area (ASA)
General Control Matrix
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Ash Storage Area Generation of dust from the main surface of the Ash Storage Area including borrow pits on the south side
Surface dust from main pipework outfall area
Generation of ash dust from the inside of the western levee areas
Generation of ash dust from the inside of the Eastern levee areas
Southern levee surfaces and batters including areas where wind-blown ash has settled
Ash dust particles Use of dust suppression treatment on the surface of the ASA ndash Refer Appendix A and B
Trigger Action Response Plan (Refer to section 7)
Use of water carts and additional dust suppression on banks and roadways as required
Daily visual inspection and remedial works as required
Facility Manager APS Environmental Coordinator McMahon Services
Facility Manager
Land Management Team
Environmental Coordinator
Ash Storage Area ndash Implementation of long-term rehabilitation plan
Generation of red dust from the borrow pit during excavation and haulage
Generation of surface red dust from haul roads tofrom the borrow pit and the Ash Storage Area
Soil lsquored dustrsquo particles Monitoring of dust generation and use of dust suppression measures during the implementation of the long-term rehabilitation plan for the Ash Storage Area Refer to Appendix D Fugitive Dust Trigger Action Response Plan (Rev 4 29th May 2017)
Facility Manager APS
McMahon Services
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Rindmlower
Generation of red dust from topsoil fingers and ash dam surface after spreading
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Table 3 Aspects and Control Action 3 Coal Conveyor System and General Site
The following action plan relates to the management of dust around the conveyor system and general site
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
62 Flinders Project
Services
Coal bin storage Coal dust Air quality EPP (Air Quality) Moderate Possible High-6 Enclosure wash down of built
up dust
Maintenance
routines
Moderate Rare Mod-4 ambient monitoring
maintenance
records
Augusta Power Stations Environmental Aspects and Impacts Register Inherent Risk Operational Controls
General Control Matrix
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Conveyors Residual coal dust generation from conveyors and bins around the station
Coal dust Enclosed structures Dust wash down (completed during Make Safe period) Defect hazard reporting Routine site inspection
Environmental Coordinator
Open areas Generation of dust from surfaces such as underneath conveyors and towers where coal has spilled or dust settled
Coal dust and surface dust Wash down with water hose when required
Land Management Coordinator
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Rindmlower
Demolition Control Actions
Table 4 Aspects and Control Action 4 Site Roads (General Conditions)
The following action plan relates to the management of dust roadways around site
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
21 Environmental Services Road traffic Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Moderate Possible High-6 Speed limits on-site
Routine road washing
Minor Unlikely Low-4 Site inspections
Augusta Power Stations Environmental Aspects and Impacts Register Inherent Risk Operational Controls
General Control Matrix
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Roads Generation of dust from road surfaces Coal dust and surface dust Water spray with water truck Street sweeper (hired as required)
McMahons Facility Manager APS
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set Issue or lmpr-ovement Opportunity
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btEen e-fl)C~lnI erth raunai_ ~s O swonm b ene itrJ [PlJrl rrto-erem m itiin aleelil on fe O=flier3lfnD ch3t COJll)any brffldF ~-
Inherent Risk Rating
llkeoll100ltI
2 Ml lOlt C ~ lY
RaiJno amp Pr1011ty
current ~ roaoh (Exktlng ContlOJGJ
W alH ih31 be utlJetl tor ttte p~e af dli~t 1~~b11 ltIUITQ demal tlbII iC1Mt Wta -r G ~ ~a~ middotbullbullth k lhae upPfe~rlg du1 d-rQ worts~ w ~ ~ng IL 3ter3 IMiCn ~Ucn XWrty
COfflffleflCli W31er mNKlflii lufft lh1D 13Qe
exayatcn [FC1 =so) bull~ )kg durtng ClemaaJOlii a tlYfty P~tm cwem enl ~ red wJle~ pa10 eci Jlfe-er elCe~N e OBl=r1tion ofd-11-t tf lNllittd w zatetmiddot airt rutJ~etl ID 1tQgtff1iii e1l gniund
~ 1 iRedu-ced lllcfilrty ctmng high WlJd~ Ou~ mcdtortlvl ~tQ 1slu-S i1od ete-cronlc monlmn
Rlsidu11 Risk Rating
Rallng amp Pr1ltlrlly
Modun l i
Proposld Mitigation o f Risk Exposure lmp-ovem1mt Aciions
Rkk Reduotlon Trbull abnbull nil o r Aa ef lmp(OWbullmefll
ov-edAoifon
Aotton owner
Rindmlower
T arglt Risk Rating
LllellhOOd
Table 5 Aspects and Control Action 5 Demolition Activities
The following action plan relates to the management of dust during specific demolition activities
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
McMahons Road traffic during
demolition activities
removal of material
off site
Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Moderate Possible High-6 Pre-task JSEA Site vehicle
speed limits
Routine road washing with
water truck
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Minor Unlikely Low-4 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons General Demolition
Activities
Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
Water areas with water hoses
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons General Civil Works Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
Water areas with water hoses
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons Stack Felling Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
Industrial mist fans
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons Bin Felling Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
Inherent Risk Operational Controls
Augusta Power Stations - Demolition Environmental Aspects and Impacts
Alliance Project Risk Assessment Register ndash Dust from demolition activities ndash extract
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Rindmlower
General Control Matrix (for Table 5 Aspects and Control Action 5 Demolition Activities)
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Stack Felling Generation of dust Coal dust ash and surface dust Vehicle speed limits Water shall be utilised for the purpose
McMahons Facility Manager APS
of dust suppression during demolition
Coal Bin Felling Generation of dust Coal dust ash and surface dust activity via air misters spotters with McMahons milk hoses suppressing dust during Facility Manager APS works as well as pre-wetting materials
General demolition activities Generation of dust Coal dust ash and surface dust before demolition activity commences McMahons water cannons built into large Facility Manager APS
General civil works Generation of dust Coal dust ash and surface dust
excavators spraying during demolition activity Plant movement minimised where
McMahons Facility Manager APS
Site traffic for demolition material removal
Generation of dust Coal dust ash and surface dust
possible to prevent excessive generation of dust If required water cart utilised to suppress seal ground area Reduced activity during high winds Dust monitoring using visual and electronic monitors
McMahons Facility Manager APS
Community and stakeholder engagement and information sharing of demolition events with potential for significant dust generation which may have an adverse effect on the community
Reclaim transport and use of ash from Generation of dust Ash dust Refer to task-specific JSEA developed McMahons the Ash Storage Area for demolition for the activity (Appendix F) Facility Manager APS activities (eg backfill of voids)
Reclaim transport and use of soil from Generation of dust Soil (red) dust McMahons the on-site borrow pit for demolition Facility Manager APS activities (eg backfill of voids topdressing working base for excavator)
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7 Ash Storage Area ndash Dust Management
The current approach for dust management on the Ash Storage Area (ASA) utilises regional weather predictions of wind speed and direction to inform activity planning and the implementation of dust management measures on the ASA
Historically infrequent events have occurred whereby rainfall on the ASA during the spring and summer months has caused the salt crust on the surface created by surface seawaterash slurry flooding to deteriorate and allow ash to become airborne in strong winds
Whole of ASA Dust Suppression Treatment
Conditions on the ASA since closure has shown that the normal dust suppression activities used (coffer dam building and surface flooding) have damaged the ASA surface allowing fine ash to be lifted from the surface A review of the dust suppression methods used on the ASA through August ndash October 2016 determined that the optimal method of dust suppression was to seal the whole of the ASA surface with a dust suppression treatment
An initial area of 15Ha in the middle of the ASA was sealed with dust suppression chemical in August 2016 which was applied by crop duster airplane The results of the sealing of this initial area were positive and after severe weather events during September and October 2016 causing large ash lift off events from the remainder of the ASA and dangerous conditions for machinery on the ASA levee banks it was decided to investigate the sealing of the whole of the main ASA
A risk assessment and proposal for the sealing of the ASA was developed in collaboration with the EPA and provided for review on the 21st October 2016 Approvals were provided and the project was completed on 22nd November 2016
Severe storm activity in the period 24-28th December 2016 impacted the dust suppressant seal which rapidly dried and led to a dust event on the 1st and 2nd January 2017
The use of a dust suppressant seal is an interim measure prior to the completion of the full rehabilitation program
Trigger Action Response Plan ndash Ash Storage Area
A Trigger Action Response Plan (TARP ndash refer Appendix D) has been developed incorporating the ldquostoplightrsquo performance monitoring tool and visual site inspections as the triggers The TARP will hold two key functions
- To monitor sealant condition and determine if further treatment is required to control ash dust generation from the Ash Storage Area and
- To monitor the generation of lsquored dustrsquo during the completion of the long term rehabilitation plan including soil trafficking emplacement and throughout the germination period of vegetation
A newly installed ambient dust monitoring system is also used to inform site staff of ldquoreal timerdquo airborne dust levels around the ASA and in two community monitoring sites These ldquoreal timerdquo levels
Printed copies are uncontrolled Please ensure you are referring to the most current version 32
Win
d D
irec
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0
240
120
17 7
30
240
120
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30
240
120
1711
30
240
120
171
33
0
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01
71
53
0
I 24
01
2017
17
30
240
120
17 1
930
f~ 2
401
201
7 21
30
~~
240
120
172
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0
i~
250
120
17 1
30
250
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30
I 25
01
2017
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0
ii
250
120
17 7
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A t
250
120
179
30
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~ V
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II
) 25
01
2017
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0 Q
I ~
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30
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250
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17 1
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~
-[ i
n 25
01
2017
17
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0
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omiddot
I 25
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middot~
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d S
pee
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mh
are used in conjunction with site visual observations to determine escalating trigger points within the TARP
The mitigation responses are drawn from the Aspect Control Actions appropriate for the identified triggers The site Incident Management System (IMS) is used as the action assignment and data recording tool
The TARP has been communicated to the appropriate site stakeholders to ensure appropriate actions are taken to mitigate dust from specific identified areasactivities on site
The Ash Storage Area has been identified as the key area for dust management and a three tiered process using wind forecasts has been developed with a daily weather forecast utilising a Red-Yellow-Green ldquostoplightrdquo type format Daily weather reports are reviewed for wind speeds forecasted to be over 35kmh in the proceeding days and a weather forecast chart is used to identify times of risk of generating dust
The chart below shows an example of the weather forecast prepared and communicated daily to site leaders
Figure 4 Example lsquostoplightrsquo TARP system for weather warning
The green band to show when potentially dust generating activities with heavy plant can take place A yellow band indicates when caution is required and a red band indicates times where it is likely that site activities may need to cease
The daily report is supplemented with the predicted weather conditions (sourced from weatherzonepro) for the next 6 day forecast period An example is provided in Figure 5 below
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flinderslower
Vlincl Speed (kph) kmh) vs Vf111cl Dir kmh) I Temperature (degC) vs Jgtreap Probab1l1tv () Last updated Tue 24 Jan 07 OD
AAAAAAAAAAA AAAAAAAAAA AAAAAAA gt-~A AA AA4AA ~~~AAA t-C DATE 24 )(Ill Tue TIME 0730
M ~~
VJn 1 c--ip(I 1_k(lhJ 1 ) 4 t 21 ~-5
WinDir A 351kmh v7
2_Jan ~ n
Figure 5 Example six-day predicted weather forecast
Further Flinders has access to the Bureau of Meteorology dust warning system which is checked daily and alerts issued with the daily environmental report An example dust warning is provided in Figure 6 below
Printed copies are uncontrolled Please ensure you are referring to the most current version 34
flinderslower
Local Time 1230 COST (dar l ) Base Da~middot 2017 02 01
Figure 6 Example BOM dust warning
Preparation for extreme weather events is documented in Appendix E Ash Storage Area ndash Extreme Weather Monitoring amp Response Plan
On high wind speed days the following example precautions will be undertaken where appropriate Full details are provided in the TARP (Appendix D)
bull Ensure safety of site staff and visitors
bull Monitor wind speeds using Bureau of Meteorology data
bull Cease work activities on the Ash Storage Area
bull Surface inspections to determine if ash is blowing off
bull Targeted action for high risk accessible areas and
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flinderslower
bull Notify stakeholders and the community if required (Port Augusta City Council community and SA EPA) in accordance with Section 5 of the APS Environmental Closure amp Post-Closure Plan
When a community complaint regarding dust is received by the company activities on the Ash Storage Area will be reviewed and ceased if deemed appropriate by the Flinders Power Facility Manager or delegate
Printed copies are uncontrolled Please ensure you are referring to the most current version 36
flinderslower
8 Former Coal Stockpile Areandash Dust Management
The NPS Coal Stockpile pad has been rehabilitated and revegetation of the surface is in progress
Whilst the vegetation is established the existing Coal Stockpile TARP will be followed as below
Flinders Power (FP) have made attempts to revegetate the existing former coal stockpile area in 2016 through to 2018 directly into coal however only relatively minor vegetation has established A site inspection conducted by Succession Ecology in August 2017 noted that revegetation over time will be successful however an alternate seed blend may expedite the process Additional seed was sown in September 2017 A lack of rainfall over the 201718 period has impaired germination
In order to expedite the timeframes associated with arid lands revegetation projects Flinders now propose to carry on with civil capping works currently being undertaken across the ash storage area to cap the approximate 15 Ha former coal stockpile and tower pad areas The existing irrigation infrastructure will be retained for future dust management and potentially for irrigation to initiate germination
The soil capping of this area is designed to mitigate fugitive coal dust emissions Additionally the borrow pit material will facilitate the revegetation of this area in order to establish a self-sustaining environment
Succession Ecology (SE) has inspected the area and is supportive of the capping
The soil capping will be seeded with a previously approved native seed (wet) mix which is salt tolerant as advised by SE due to the evident salinity levels in the area
Vegetation Monitoring will continue to occur
The irrigation will be mainly used for dust suppression but could be used for kicking off germination depending on what rains we receive and what success of germination we have from the rain The irrigation will remain operational in the case it may be required
FP has received endorsement of the approach from Kirsa Environmental
Timing for approval of capping of the former coal stockpile and tower pad area is critical as it is proposed to follow on from current site civil capping works into the proposed capping works associated with the former coal stockpile and tower pad areas
It is intended that the current fleet of civil plant will be utilised to complete the proposed capping scope of works
Trigger Action Response Plan ndashStockpile Revegetation
A (TARP) has been developed for revegetation work on the stockpile incorporating the ldquostoplightrsquo performance monitoring tool and visual site inspections as triggers
Stockpile revegetation has been identified as a key area for dust management and the stoplightrdquo Red-Yellow-Green weather forecast will also be used during activities on the stockpile pad To facilitate and expedite the revegetation of the former coal stockpile and tower pad areas it is proposed to cap the area using material from the existing borrow pit
The lsquostoplightrsquo format will use a Green band to show when potentially dust generating activities with heavy plant can take place according to the following weather conditions
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flinderslower
Any activities during a wind speed below 20kph (6 ms or 11 knots) from the SOUTH EAST to SOUTH WEST
A Yellow band will show the hours when potentially dust generating activities with heavy plant can take place according to the following
Any activities during a wind speed over 20kph (6 ms or 11 knots) from any wind direction other than from the SOUTH EAST to SOUTH WEST
A Red band will show the hours when potentially dust generating activities with heavy plant cannot take place
Any movement activities during a wind speed over 20kph (6 ms or 11 knots) from the SOUTH EAST to SOUTH WEST
Stockpile inactiveRevegetation Program
Proactive measures will be undertaken when strong wind conditions are forecasted by manually operating the former coal stockpile sprinkler system to dampen the area to prevent dust lift A remote operating system will be installed to provide a quick response to any non-forecasted or unforeseen weather events
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flinderslower
9 Dust Monitoring and Evaluation
Ongoing dust monitoring by either visual evaluation of ashcoalsoil dust generation on site or by interpretation of the results from the dust monitoring network will determine if dust mitigation measures are effective or additional measures are required
Groups responsible for inspections are described in the action tables and TARP Text and email alerts are automatically sent to a nominated group of responsible persons when dust wind speed and wind direction thresholds are exceeded These mechanisms are outlined in the TARP
The monitoring of real-time PM10 data from the boundary monitors of the Ash Storage Area is presented on a screen within the Flinders Power office on site and monitored by both Flinders Power and McMahon Services personnel A summary of data is provided in the daily environmental report
Access to real-time dust monitoring information for the Ash Storage Area and community monitoring stations is made available to the EPA A summary of real-time data for the community PM10 monitors is presented on the Flinders Power website and made openly available to the community
The monitoring of real-time PM10 data from Stirling North and Lea Memorial Oval is verified daily (M-F) by the Environmental Coordinator
The monitoring of ambient high-volume filter papers within the Port Augusta community is conducted daily by the site Environmental Coordinator
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flinderslower
10 Community and Stakeholder Engagement
Community and stakeholder engagement is detailed in the APS Closure and Post Closure Environmental Plan
A summary of these mechanisms are outlined below
Mechanism Target Group Posted on FP
website
Frequency Notes
Residents PACC MP Media EPA NRM Board
Special-interest groups
Weekly progress report
X X X No Weekly A summary of activities at the site including demolition and ash dam rehabilitation
Face-to-Face meetings site visits
X NA Monthly Monthly meetings with PACC CEO and Mayor when available
Annual environmental presentation
X Yes Annual Annual presentation to PACC ndash open public forum
Media release Infomercials
X X Yes Ad-hoc Strategic media release eg felling of PPS A station stack
Works Progress Fact Sheet
X X X X Yes Monthly Quarterly
A monthly progress update Letter drop
Focus topic fact sheet
X X X X X X X Yes Ad-hoc A brochure on a particular topic (eg ash dam Playford A building demolition) Letter drop
Flinders Power website
X X X X X X X Yes Regular updates
Information portal Links to FP YouTube account FP contact details
Flinders Power hotline amp email
X X X Yes NA All community complaints are logged
Special-interest presentations
X NA On request
Presentations or site visits on request (eg Rotary schools)
Community site visits
X NA On request
Actively invite community members
Community forum
X X Yes Monthly Group now established
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flinderslower
reference group
Community X Yes TBA May include site information tours days
SMS distribution list
X X X X X X X Yes Ad-hoc Rapid notification of dust incidents
Flinders power is also performing community sentiment monitoring using the following
- Daily media monitoring ndash print TV radio and online
- Complaints hotline amp email ndash central recording
- Facebook ndash linked with community forums
- FP personnel embedded within the community
- Feedback from SA Government Regulators
- Close relationships with PACC MPrsquos local media and community leaders
101 Complaint Management
Community complaints regarding nuisance coal dust and ash are to be dealt with according to the Complaint Handling Procedure contained in Appendix C
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flinderslower
References
Aurecon 2010 Alinta Northern Power Station Stockpile Dust Management Flinders Power Report ref 206865-001-01 9 September 2010
Environment Protection Act 1993 (SA)
EPA Licence 13006 (Northern and Playford Power Station)
EPA Licence 13011 (Leigh Creek to Port Augusta Railway Operations)
Flinders Power Environment amp Community Policy (June 2016)
Printed copies are uncontrolled Please ensure you are referring to the most current version 42
flinderslower
Appendices
Appendix A Ash Dam Interim Sealing ndash Proposal 7th November 2016
Appendix B Ash Dam Interim Sealing ndash Risk Assessment 2nd st January 2017
Appendix C Complaint Handling Procedure
Appendix D Fugitive Dust Trigger Action Response Plan (Rev 6 3rd January 2018)
Appendix E Ash Storage Area ndash Extreme Weather Monitoring amp Response Plan (Rev 0 3rd March 2017)
Appendix F JSEA for the excavation transport and use of soil and ash from the borrow pit or Ash Storage Area for demolition activities
Printed copies are uncontrolled Please ensure you are referring to the most current version 43
flinderslower
Appendix C
Complaint Handling Procedure
All complaints received by Flinders Power employees including security are handled according to the following steps
All complaint receivers are required to
bull Collect all details from the complainant (time location concerns)
bull Repeat back and confirm details with the complainant
bull Obtain complainants contact details
bull Advise relevant Supervisor immediately
The Facility Manager is to be advised as soon as practicable of receipt of the complaint
The complainant will be contacted and an investigation of the complaint initiated as soon as practicable of the receipt of the complaint The investigation typically may include
- A visit to the complainant to
o Observe local dust conditions
o Discuss the event with the complainant and
o Taking of samples
- A review of site data from the time of the incident
- A review of meteorological data
Following the investigation the complainant is to receive a written response outlining the investigation procedure and findings If requested the findings of the investigation will be explained and discussed with the complainant in person
Details of the complaint the investigation management actions implemented and follow up is recorded within the FP Incident Management System
All media enquiries are to be managed through the approved Flinders Power Media Protocols
Printed copies are uncontrolled Please ensure you are referring to the most current version 44
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Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement Action Owner
Strategic or Approved Action
U l
Planned t
Completion Date i m
Consequence Likelihood Rating amp Priority
23 Environmental
Services
Environmental Compliance decommissioningdemo lition
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting
environmental checklist for decommissioningdemolition Surrender
of EPA Licence Site Environmental Awareness Induction S4G29 Hazard
Inspections update induction material for decommissioningdemolition Water
Sampling Program stack and ambient monitoring reporting on EMP and
reporting to EPA
E ective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance requirements and regulatory in Alinta Closure
Environmental Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environmental
Services
Site environmental performance monitoring decommissioningdemo lition
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS
Environmental water sampling for SS pH and salinity Additional siteboundary
monitoring required during decommissioningdemolition (eg HI_Vol
and noise) IMS regular monitoring reports (eg weekly) Monitoring
programmes and regular reporting
E ective 3 Moderate E Unlikely Low 21
26 Environmental
Services
Ambient environmental monitoring instrumentation calibration (decommissioningdem olition)
Environmental monitoring
Non compliance
Nil Improper process in place
Procedural 3 Moderate D Possible Medium 16
JSP400 APS Environmental water sampling at APS Calibration program and
records Maintenance routines E ective 3 Moderate E Unlikely Low 21
27 Environmental
Services
Performance Reporting decommissioningdemo lition
Compliance Non compliance (EPA reporting monthly (required by ECA Schedule 1 11))
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18 Sample Management JSPs Reporting
calendar ambient monitoring E ective 2 Major E Unlikely Medium 18
Specific reference to compliance and regulatory requirements in Alinta
Closure Environmental Management Plan including reporting timetable
Alinta Energy Through to demolition completion
28 Environmental
Services
Decommissioningdem olition
Non compliance (EPA reporting (annual))
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Reporting calendar Internal management
reporting ambient monitoring E ective 3 Moderate E Unlikely Low 21
29 Environmental
Services
Pre-decommissioning (last operational year)
Non compliance (Annual Independent Verification of Monitoring Program)
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Reporting calendar water quality
monitoring program E ective 3 Moderate E Unlikely Low 21
30 Environmental
Services Pre-decommissioning (last operational year)
Annual NPI reporting
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Reporting calendar Usage of reportable
substances data E ective 3 Moderate E Unlikely Low 21
31 Environmental
Services
Implement and monitor program in response to environmental concerns (decommissioningdem olition)
Environmental Improvement Program implementation
Environmental improvements
Nil Improper process in place
Procedural IMS regular updating of actions E ective
32 Environmental
Services
Discharges into the marine environment decommissioningdemo lition (including use or removal of bulk chemicals)
Contaminated drains SPELS
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Chemical oil and fuel bunding oil separation stormwater segregation
monitoring of stormwater control systems S310 (Ferrous sulphate) S311
(Solvents) S313 (Sodium hypochlorite) S315 (Waste oil) Pump outs
Decommissioning and demolition within containment (minimise direct discharges
to marine environment) Emergency Response Plan IMS water monitoring
programme site inspections
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
33 Environmental
Services
Site operations decommissioningdemo lition
Noise Nuisance Public nuisance
complaints enforcement action
Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm weekdays 8am-6pm weekends) boundary noise monitoring
E ective 3 Moderate E Unlikely Low 21
34 Environmental
Services
Site operations decommissioningdemo lition
Spillage of stored materials and wastes
Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 2 Major E Unlikely Medium 18
IMS regular updating of actions site inspections (required by ECA) S31
Chemwatch S311 Storage Handling and Disposal of solvents etc Emergency Response Plan Crisis Management Plan
IMS inspection records
E ective 3 Moderate E Unlikely Low 21
35 Environmental
Services
Historical operations post decommissioningdemo lition
Discharges to soilgroundwater landfills
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular monitoring of
known groundwater contamination E ective 3 Moderate E Unlikely Low 21
36 Environmental
Services
Environmental incidents decommissioningdemo lition
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for decommissioningdemolition activities)
IMS Incident Management System E ective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental
Management Plans to be developed incorporating specific measures for
activities with potential to cause environmental harm Site incident
reporting mechanism to be used (IMS)
Alinta Energy Earlymid 2016
37 Environmental
Services
Environmental awareness decommissioningdemo lition
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for decommissioningdemolition activities) training and induction records
(for decommissioning demolition induction)
E ective 4 Minor E Unlikely Low 23
38 Environmental
Services
Environmental auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition requirements
(eg demolition approval conditions) E ective 3 Moderate E Unlikely Low 21
39 Environmental
Services
Community complaints decommissioningdemo lition
Amenity community perception of organisation
Nuisance Complaints local
action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to
complainant Complaints Register Internal media advisor Reporting to management
E ective 3 Moderate E Unlikely Low 21
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
U l
Planned t
Completion Date i m
Consequence Likelihood Rating amp Priority
40 Environmental
Services
Annual community consultation post operation
Community perception of organisation
Non compliance Nil Improper process in
place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar E ective 3 Moderate E Unlikely Low 21
41 Environmental
Services
Potable water use decommissioningdemo lition
Excessive potable water use
Resource waste Water overuse financial cost increased
risk of Gulf contamination
Resource 3 Moderate E Unlikely Low 21 Re-location of services prior to demolition E ective 4 Minor E Unlikely Low 23
42 Operations Tech
Support
Environmental monitoring instrumentation calibration (decommissioningdem olition)
Environmental monitoring
Non compliance
Nil Improper process in place
Procedural 3 Moderate D Possible Medium 16
Calibration program and records Maintenance routines (applied to ambient
monitoring) E ective 3 Moderate E Unlikely Low 21
46 Post production coal conveyors
Coal conveyors Coal dust (conveyorstransfe rs)
Air quality Personnel exposure
limit exceedence public nuisance complaints
enforcement action
Environmental 3 Moderate C Likely High 11 wash down of built up dust E ective 5 Insignificant E Unlikely Low 25
47 Post production
coal bins
Coal bin storage Coal dust Air quality Personnel exposure
limit exceedence public nuisance complaints
enforcement action
Environmental 3 Moderate D Possible Medium 16 Wash down of built up dust ambient
monitoring maintenance records E ective 3 Moderate E Unlikely Low 21
48 Fireexplosion Air quality
Coal dust explosion Fire 2 Major D Possible High 12
Review risk assessments for decommissioningdemolition Emergency
Response Plan IMS E ective 3 Moderate E Unlikely Low 21
49 APS post production
Coal plant washdown Marine discharge Water quality Contaminated water
entering the Gulf damage to Gulf waters
enforcement action
Environmental 4 Minor D Possible Low 20
Containment of washwater JSP 107 Bunker Washing water monitoring
programme E ective 4 Minor E Unlikely Low 23
50 APS post production
Decommissioningdem olition
Oil spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21
Contaminated drain system S17 Oil Spill Procedure review and enhance containment options Emergency
Response Plan IMS Maintenance records
E ective 4 Minor E Unlikely Low 23
51 APS post production
Decommissioningdem olition
Fuel oil spillage (eg gun malfunction)
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate D Possible Medium 16
Operating controls S17 Oil Spill procedure contaminated drains Emergency Response Plan IMS
E ective 3 Moderate E Unlikely Low 21
52 APS post
production
Decommissioningdem olition
Seawater flow Ecological impact (eg fauna loss)
ReductionIncrease in number amp abundance of
local marine species Environmental 3 Moderate E Unlikely Low 21
Review options for cooling water channels (eg breach wall)
E ective 3 Moderate E Unlikely Low 21
53 APS post
production
Decommissioningdem olition
Contamination of condenser cooling water
Ecological impact Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 2 Major E Unlikely Medium 18 Review options for condensers (post
production) visual E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
54 APS post
production
Boiler water drainage Treated water discharge
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 4 Minor D Possible Low 20 drainage into Ash pit Operating controls
ambient water monitoring programme E ective 4 Minor E Unlikely Low 23
55 APS post
production
Decommissioningdem olition
Hydrogen gas leakage
Air quality fire hazard Explosion personnel
exposure Fire 2 Major E Unlikely Medium 18
Evacuation of hydrogen Maintenance routines Emergency Response Plan
Crisis Management Plan IMS hydrogen monitoring
E ective 2 Major E Unlikely Medium 18
56 APS post
production
Auxiliary boiler operation decommissioningdemo lition
Spillage of dosed water
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21 Operating controls containment
Maintenance routines E ective 3 Moderate E Unlikely Low 21
57 APS post
production
Fuel oil removal Fuel oil spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21
Contaminated drains Operating controls S17 Oil Spill procedure Emergency
Response Plan IMS E ective 3 Moderate E Unlikely Low 21
58 APS post
production
Emergency diesel generators decommissioningdemo lition
Diesel spillage (loading and operational)
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21
Bunding Operating controls S17 Oil Spill procedure tested transfer hoses
Maintenance routines Emergency Response Plan IMS
E ective 3 Moderate E Unlikely Low 21
59 APS post
production
Fly ashbottom ash handling systems decommissioningdemo lition
Spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 2 Major E Unlikely Medium 18 Flush ash systems to ash storage area
water monitoring programme E ective 4 Minor E Unlikely Low 23
60 APS post
production
Fly ash re-use storage and handling area
Spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 4 Minor D Possible Low 20 Empty and washdown plant Discharge to
containment area E ective 4 Minor E Unlikely Low 23
61 APS post
production
Decommissioningdem olition
Contamination of flow to ash storage pond (eg oil)
Water quality Spill entering ash disposal system discharge to Gulf
waters enforcement action
Environmental 3 Moderate D Possible Medium 16
Contaminated drains oil containment oil handling ash pond controls Ash storage dam inspections Emergency Response
Plan IMS inspection records
E ective 4 Minor E Unlikely Low 23
62 APS post
production
Machine degreasingwashdown
Wastewater discharge
Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 3 Moderate C Likely High 11
Bunded washbays JSP104 Degreasing JSP102 Steam Cleaner Operation
contaminated drain system contained degreasers Quick break degreaser oil
separator S311 Storage Handling and Disposal of solvents etc water monitoring
programme
E ective 4 Minor E Unlikely Low 23
63 APS post
production Air emissions (volatile)
Air quality fire hazard
Fire personnel exposure
Fire 3 Moderate E Unlikely Low 21 Procedures extraction systems E ective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
U l
Planned t
Completion Date i m
Consequence Likelihood Rating amp Priority
64 APS post
production
Oil removal Oil spillage Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 3 Moderate C Likely High 11
Station Instructions S17 Oil Spill procedure S315 Storage Handling and
Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil treatment plant Contaminated drain system Emergency Response Plan IMS water monitoring
programme
E ective 4 Minor E Unlikely Low 23
65 APS post
production
Waste oil storage Oil spillage Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 3 Moderate C Likely High 11
Bunded storage S17 Oil Spill procedure S315 Storage Handling and Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil treatment plant Emergency
Response Plan IMS water monitoring programme
E ective 3 Moderate E Unlikely Low 21
66 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major E Unlikely Medium 18 Bunded storage Emergency Response
Plan Spill response IMS E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
67 APS post
production
Fire Air quality Fire personnel
exposure Fire 3 Moderate E Unlikely Low 21
Storage controls (minimise ignition sources) Emergency Response Plan
Crisis Management Plan IMS E ective 3 Moderate E Unlikely Low 21
68 APS post
production
Discharges into the marine environment
Contaminated drains SPELS
Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 2 Major D Possible High 12
Chemical oil and fuel bunding oil separation maintenance of SPEL tanks
stormwater segregation review of routine to inspect SPEL tanks Emergency
Response Plan IMS water monitoring programme site inspections SPEL
cleanout routines
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
69 APS post
production
Oil -filled electrical equipment decommissioning and removal
Leakage Water quality
Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 2 Major E Unlikely Medium 18
Bunding S17 Oil Spill procedure JSP271 NPS Step-up Unit transformer amp line
isolator maintenance Emergency Response Plan Crisis Management Plan IMS monitoring of oil properties (eg PCB
content)
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
70 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major E Unlikely Medium 18 Containment of oil-filled equipment
Emergency Response Plan E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
71 APS post
production
Fire explosion Air quality
Fire personnel exposure
Fire 2 Major E Unlikely Medium 18 Permits containment E ective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
72 APS post
production
Battery Rooms decommissioning and removal
Acid spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 4 Minor D Possible Low 20
Bunded JSP052 Battery maintenance JSP315 Battery Bank Replacement S31
Chemwatch Maintenance routines Emergency Response Plan IMS
E ective 4 Minor E Unlikely Low 23
73 APS post
production
Fireexplosion (gas generation)
Air quality Fire personnel
exposure Fire 3 Moderate E Unlikely Low 21
Extraction system Maintenance routines Emergency Response Plan IMS
E ective 4 Minor E Unlikely Low 23
74 APS post
production
Fire pumps decommissioning
Fueloil spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 4 Minor E Unlikely Low 23 S17 Oil Spill procedure Emergency
Response Plan IMS E ective 4 Minor E Unlikely Low 23
75 APS post
production
WorkshopsGarage decommissioning and demolition
Removal and disposal of dangerous substances spills
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21
Bunded storage S31 Chemwatch Emergency Response Plan IMS Waste disposal documentation (WTCsWTFs)
E ective 4 Minor E Unlikely Low 23
76 APS post
production
Removal of dangerous substances incompatible storage fire
Air quality Personnel exposure
limit exceedence public nuisance complaints
enforcement action
Environmental 3 Moderate E Unlikely Low 21
Segregation of dangerous substances S31 Chemwatch S311 Storage
Handling and Disposal of solvents etc Emergency Response Plan IMS
E ective 3 Moderate E Unlikely Low 21
77 APS post
production
Disposal of oilycontaminated rags
Contaminated soil Soilgroundwater contamination clean up
actions enforcement actions
Environmental 4 Minor E Unlikely Low 23 Segregation for disposal E ective 5 Insignificant E Unlikely Low 25
78 APS post
production
Grit blasting decommissioning and demolition
particulate emissions
Air quality water quality
Air soil amp groundwater contamination clean up
actions enforcement actions
Environmental 3 Moderate D Possible Medium 16
Removal and disposal of grit washdown prior to demolition Containment of
washdown water E ective 4 Minor E Unlikely Low 23
79 APS post
production
Demolition general Lead emissions (from lead-based paints)
Personnel exposure limit exceedence public
nuisance complaints enforcement action
Environmental 3 Moderate E Unlikely Low 21
lead paint testing dust control processes Maintenance routines lead in paint testing
(as required) and recorded E ective 4 Minor E Unlikely Low 23
80 APS post
production
Refrigerationair conditioning servicing decommissioning (as required)
Release of ozone depleting substances
Depletion of Ozone layer
Environmental harm regulatory enforcement
Environmental 3 Moderate D Possible Medium 16
ARC licensed operators ozone-depleting gas reclaim for decommissioned equipment Audits based on ARC
requirements JSP372 Air Conditioner Maintenance Records of ozone-depleting
substances reclaim etc
E ective 3 Moderate E Unlikely Low 21
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
U l t i m
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
Planned Completion Date
Consequence Likelihood Rating amp Priority
Sewerage system Sewage overflow Water quality Spill entering onsite
81 APS post
production
relocation of services (caused by decommissioning and
drains system discharge to Gulf
waters enforcement Environmental 4 Minor D Possible Low 20
Response to sewer chokes JSP028 Sewage Pit pump and control repairs
Emergency Response Plan IMS E ective 4 Minor E Unlikely Low 23
demolition) action
bullmiddotmiddot - ~- alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 2 Unit 3 Area as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates
records ffective 4 Minor E Unlikely Low 23
18 Heath
Safety amp Security
Land management landscaping (post decommissionin gdemolition)
Maintaining amp improving landscaping
Improved site amenity
Poor visual amenity soil erosion dust
Environmental Final landforms and potential
landscaping plan ffective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections ffective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissionin gdemolition
Dust emissions Air quality Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust
suppressant if required) Hi VolDustTrak dust monitoring on site
boundary
ffective 4 Minor E Unlikely Low 23
23 Environmen tal Services
Environmental Compliance decommissionin gdemolition
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting
environmental checklist for decommissioningdemolition
Surrender of EPA Licence Site Environmental Awareness Induction S4G29 Hazard
Inspections update induction material for
decommissioningdemolition Water Sampling Program stack and
ambient monitoring reporting on EMP and reporting to EPA
ffective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environmen tal Services
Site environmental performance monitoring decommissionin gdemolition
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS
Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during decommissioningdemolition (eg HI_Vol and noise) IMS regular
monitoring reports (eg weekly) Monitoring programmes and regular
reporting
ffective 3 Moderate E Unlikely Low 21
33 Environmen tal Services
Site operations decommissionin gdemolition
Noise Nuisance Public nuisance
complaints enforcement action
Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm
weekdays 8am-6pm weekends) boundary noise monitoring
ffective 3 Moderate E Unlikely Low 21
35 Environmen tal Services
Historical operations post decommissionin gdemolition
Discharges to soilgroundwat er landfills
Soilgroundwater contamination Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular monitoring
of known groundwater contamination
ffective 3 Moderate E Unlikely Low 21
36 Environmen tal Services
Environmental incidents decommissionin gdemolition
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for decommissioningdemolition
activities) IMS Incident Management System
ffective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
37 Environmen tal Services
Environmental awareness decommissionin gdemolition
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for
decommissioningdemolition activities) training and induction records (for decommissioning
demolition induction)
ffective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
38 Environmen tal Services
Environmental auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition requirements (eg demolition
approval conditions)
ffective 3 Moderate E Unlikely Low 21
39 Environmen tal Services
Community complaints decommissionin gdemolition
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to complainant Complaints Register
Internal media advisor Reporting to management
ffective 3 Moderate E Unlikely Low 21
40 Environmen tal Services
Annual community consultation post operation
Community perception of organisation
Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Compliance calendar ffective 3 Moderate E Unlikely Low 21
41 Environmen tal Services
Potable water use decommissionin gdemolition
Excessive potable water use
Resource waste
Water overuse financial cost increased risk of
Gulf contamination Resource 3 Moderate E Unlikely Low 21
Re-location of services prior to demolition
ffective 4 Minor E Unlikely Low 23
bullmiddotmiddot middot~ bullmiddot ~- alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 4a Coal Stockpile amp Rail Loop Area as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed
estimates records ffective 4 Minor E Unlikely Low 23
17 Heath
Safety amp Security
Land management heritage (decommissioningd emolition)
Damage to aboriginal andor post settlement heritage items
Damage to heritage items Damage to or loss of
Native amp Heritage items sites
Heritage 3 Moderate E Unlikely Low 21
Site Environmental Awareness Induction
confirmation of any potential heritage sites within impacted
area
ffective 3 Moderate E Unlikely Low 21
18 Heath
Safety amp Security
Land management landscaping (post decommissioningde molition)
Maintaining amp improving landscaping
Improved site amenity Poor visual amenity soil
erosion dust Environmental
Final landforms and potential landscaping plan
ffective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections ffective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissioningde molition
Dust emissions Air quality
Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads
(use of dust suppressant if required) Hi VolDustTrak
dust monitoring on site boundary
ffective 4 Minor E Unlikely Low 23
23 Environmen tal Services
Environmental Compliance decommissioningde molition
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting environmental
checklist for decommissioningdemolition
Surrender of EPA Licence Site Environmental
Awareness Induction S4G29 Hazard Inspections update
induction material for decommissioningdemolition Water Sampling Program
stack and ambient monitoring reporting on EMP and
reporting to EPA
ffective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
24 Environmen tal Services
Coal stockpile management pre-decommissioning (utilisation of stockpile)
Coal dust Air quality
Limit exceedence public nuisance
complaints enforcement action
Environmental 2 Major C Likely High 7
Dust Management Plan Sprays Water truck JSP 322 -paper mulch Project Group
IMS daily checks and records wind speeddirection
ambient monitoring
ffective 4 Minor E Unlikely Low 23
25 Environmen tal Services
Site environmental performance monitoring decommissioningde molition
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS
JSP403 APS Environmental water sampling for SS pH
and salinity Additional siteboundary monitoring
required during decommissioningdemolition (eg HI_Vol and noise) IMS
regular monitoring reports (eg weekly) Monitoring
programmes and regular reporting
ffective 3 Moderate E Unlikely Low 21
26 Environmen tal Services
Ambient environmental monitoring instrumentation calibration (decommissioningd emolition)
Environmental monitoring
Non compliance
Nil Improper process in place
Procedural 3 Moderate D Possible Medium 16
JSP400 APS Environmental water sampling at APS Calibration program and
records Maintenance routines
ffective 3 Moderate E Unlikely Low 21
33 Environmen tal Services
Site operations decommissioningde molition
Noise Nuisance
Public nuisance complaints
enforcement action Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm weekdays 8am-6pm weekends) boundary
noise monitoring
ffective 3 Moderate E Unlikely Low 21
34 Environmen tal Services
Site operations decommissioningde molition
Spillage of stored materials and wastes
Water quality
Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 2 Major E Unlikely Medium 18
IMS regular updating of actions site inspections (required by ECA) S31
Chemwatch S311 Storage Handling and Disposal of solvents etc Emergency
Response Plan Crisis Management Plan IMS
inspection records
ffective 3 Moderate E Unlikely Low 21
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
35 Environmen tal Services
Historical operations post decommissioningde molition
Discharges to soilgroundwat er landfills
Soilgroundwater contamination Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular
monitoring of known groundwater contamination
ffective 3 Moderate E Unlikely Low 21
36 Environmen tal Services
Environmental incidents decommissioningde molition
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for
decommissioningdemolition activities) IMS Incident Management System
ffective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
37 Environmen tal Services
Environmental awareness decommissioningde molition
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction
(reviewed for decommissioningdemolition
activities) training and induction records (for
decommissioning demolition induction)
ffective 4 Minor E Unlikely Low 23
38 Environmen tal Services
Environmental auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include
decommissioningdemolition requirements (eg demolition
approval conditions)
ffective 3 Moderate E Unlikely Low 21
39 Environmen tal Services
Community complaints decommissioningde molition
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation
Directed response to complainant Complaints Register Internal media
advisor Reporting to management
ffective 3 Moderate E Unlikely Low 21
40 Environmen tal Services
Annual community consultation post operation
Community perception of organisation
Non compliance Nil Improper process in
place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar ffective 3 Moderate E Unlikely Low 21
41 Environmen tal Services
Potable water use decommissioningde molition
Excessive potable water use
Resource waste Water overuse financial
cost increased risk of Gulf contamination
Resource 3 Moderate E Unlikely Low 21 Re-location of services prior
to demolition ffective 4 Minor E Unlikely Low 23
43 Loco
refueling area
Loco refueling area (decommissioningd emolition)
Historical oilfuel spillage
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 3 Moderate C Likely High 11 Review for any potential
contamination ffective 3 Moderate E Unlikely Low 21
44
Post production
coal stockpile
area
Runoff from coal stockpile area (post operation)
Water quality (runoff)
Water quality Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 3 Moderate C Likely High 11
Collection no direct marine discharges water monitoring
programme ffective 4 Minor E Unlikely Low 23
45
Post production
coal stockpile
area
Post operation coal stockpile area
Fire (spontaneous combustion)
Air quality Fire smokeparticulate
emissions public amp personnel exposure
Fire 3 Moderate E Unlikely Low 21
Develop strategy to reduce risks of spon com In post operational coal stockpile area Monitoring by Alinta
staff IMS
ffective 4 Minor E Unlikely Low 23
middot bullmiddotmiddot - ~ - al1ntaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 4b Ash Dam ABC Lake amp Polishing Pond as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
6 Heath
Safety amp Security
Ash storage dam management decommissioning demolition
Dust emissions Air quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 3 Moderate D Possible Medium 16
Maintenance work with periodic salt water flooding to maintain crust plus chemical
coating treatment of levees Ash Storage Dam Development Recommendations Ash Storage Dam Management Responsibilities Matrix Develop strategies for management
during decommissioningdemolition and long-term APS Ash Storage Dam
Inspection Checklist JSP234 Ash disposal pipe laying JSP235 Vehicle operation in
Ash Pond area IMS daily inspections ambient monitoring 3 monthly inspections
Effective 3 Moderate E Unlikely Low 21
7 Heath
Safety amp Security
Water emissions (including seepage)
Water quality (carryover of ash trace elements nutrients pH)
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major D Possible High 12
Refer to 6 detention time seeping interception and pump-back review need for
additional floating curtainoil capture daily inspections weekly water sampling water quality monitoring programme 3 monthly
inspections
Effective 3 Moderate E Unlikely Low 21
8 Heath
Safety amp Security
Groundwater contamination
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18 Refer to 7 groundwater monitoring
programme Effective 4 Minor D Possible Low 20
9 Heath
Safety amp Security
Visual impact Amenity Complaints local action
media attention regulatory involvement
Community 3 Moderate C Likely High 11 Screening planting inspection records Effective 4 Minor D Possible Low 20
10 Heath
Safety amp Security
Breeding of midges
Amenity Public health niusance complaints local action
media attention regulatory involvement
Community 3 Moderate C Likely High 11
Control of salinity Site inspections long-term plan for ash storage area Weekly
water sampling Effective 4 Minor E Unlikely Low 23
11 Heath
Safety amp Security
Ash storage dam leakage (eg levee breach) post decommissioning demolition
Water quality Marine contamination mangrove destruction
Marine contamination clean up actions
enforcement actions Environmental 2 Major E Unlikely Medium 18
Refer to 5 perimeter dam wall design inspections Emergency Response Plan
Crisis Management Plan IMS Ash Storage Pond Closure Plan (need to consider long-term stability of levees) daily inspections 3
monthly inspections inspection records
Effective 2 Major E Unlikely Medium 18
12 Heath
Safety amp Security
Land contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major E Unlikely Medium 18
Refer to 6 daily inspections access controls review risks from
decommissioning processes (eg oilhazardous materials removal from
equipment) contain on site Emergency Response Plan Crisis Management Plan
IMS daily inspections
Effective 2 Major E Unlikely Medium 18
14 Heath
Safety amp Security
Fire on site decommissioning demolition
Contaminated fire water discharge
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Contaminated drains system Emergency Response Plan Crisis Management Plan
review options re containment of fire water eg within ABC Lake in preference to
discharge to ash pond storage Maintenance routines Station Instruction
S17 (Spill Response) IMS Plant monitoring
Effective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
15 Heath
Safety amp Security
Site security decommissioning demolition
vandalism Site amenity Site damage injury to
persons Security 3 Moderate D Possible Medium 16
Site security systems Emergency Response Plan
Effective 3 Moderate E Unlikely Low 21
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates records
Effective 4 Minor E Unlikely Low 23
18 Heath
Safety amp Security
Land management landscaping (post decommissioning
Maintaining amp improving landscaping
Improved site amenity Poor visual amenity soil
erosion dust Environmental
Final landforms and potential landscaping plan
Effective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections Effective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissioning demolition
Dust emissions Air quality Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust suppressant if required) Hi VolDustTrak dust monitoring
on site boundary
Effective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement Action Owner
Strategic or Approved Action
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
23 Environment al Services
Environmental Compliance decommissioning demolition
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting
environmental checklist for decommissioningdemolition Surrender of
EPA Licence Site Environmental Awareness Induction S4G29 Hazard
Inspections update induction material for decommissioningdemolition Water
Sampling Program stack and ambient monitoring reporting on EMP and reporting
to EPA
Effective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environment al Services
Site environmental performance monitoring decommissioning demolition
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during decommissioningdemolition (eg HI_Vol and noise) IMS regular monitoring reports (eg
weekly) Monitoring programmes and regular reporting
Effective 3 Moderate E Unlikely Low 21
26 Environment al Services
Ambient environmental monitoring instrumentation calibration (decommissioning demolition)
Environmental monitoring
Non compliance
Nil Improper process in place
Procedural 3 Moderate D Possible Medium 16
JSP400 APS Environmental water sampling at APS Calibration program and records
Maintenance routines Effective 3 Moderate E Unlikely Low 21
32 Environment al Services
Discharges into the marine environment decommissioning demolition (including use or removal of bulk chemicals)
Contaminated drains SPELS
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Chemical oil and fuel bunding oil separation stormwater segregation
monitoring of stormwater control systems S310 (Ferrous sulphate) S311 (Solvents) S313 (Sodium hypochlorite) S315 (Waste
oil) Pump outs Decommissioning and demolition within containment (minimise
direct discharges to marine environment) Emergency Response Plan IMS water monitoring programme site inspections
Effective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
33 Environment al Services
Site operations decommissioning demolition
Noise Nuisance Public nuisance complaints
enforcement action Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm weekdays 8am-6pm weekends) boundary noise monitoring
Effective 3 Moderate E Unlikely Low 21
34 Environment al Services
Site operations decommissioning demolition
Spillage of stored materials and wastes
Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 2 Major E Unlikely Medium 18
IMS regular updating of actions site inspections (required by ECA) S31
Chemwatch S311 Storage Handling and Disposal of solvents etc Emergency
Response Plan Crisis Management Plan IMS inspection records
Effective 3 Moderate E Unlikely Low 21
35 Environment al Services
Historical operations post decommissioning demolition
Discharges to soilgroundwat er landfills
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular monitoring of
known groundwater contamination Effective 3 Moderate E Unlikely Low 21
36 Environment al Services
Environmental incidents decommissioning demolition
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for decommissioningdemolition activities) IMS
Incident Management System Effective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to be
used (IMS)
Alinta Energy Earlymid 2016
37 Environment al Services
Environmental awareness decommissioning demolition
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for decommissioningdemolition activities) training and induction records
(for decommissioning demolition induction)
Effective 4 Minor E Unlikely Low 23
38 Environment al Services
Environmental auditing (and forwarding summary to EPA) review requirement post
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition requirements
(eg demolition approval conditions) Effective 3 Moderate E Unlikely Low 21
39 Environment al Services
Community complaints decommissioning demolition
Amenity community perception of organisation
Nuisance
Complaints local action media attention
regulatory involvement Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to
complainant Complaints Register Internal media advisor Reporting to management
Effective 3 Moderate E Unlikely Low 21
40 Environment al Services
Annual community consultation post operation
Community perception of organisation
Non compliance Nil Improper process in
place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar Effective 3 Moderate E Unlikely Low 21
41 Environment al Services
Potable water use decommissioning demolition
Excessive potable water use
Resource waste Water overuse financial cost increased risk of
Gulf contamination Resource 3 Moderate E Unlikely Low 21 Re-location of services prior to demolition Effective 4 Minor E Unlikely Low 23
bullmiddotmiddot -~ - - alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 7 Hospital Creek as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure
Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates
records ffective 4 Minor E Unlikely Low 23
18 Heath
Safety amp Security
Land management landscaping (post decommissio ningdemolitio n)
Maintaining amp improving landscaping
Improved site amenity
Poor visual amenity soil erosion dust
Environmental Final landforms and potential
landscaping plan ffective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections ffective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissio ningdemolitio n
Dust emissions Air quality Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust suppressant if required) Hi VolDustTrak dust monitoring on
site boundary
ffective 4 Minor E Unlikely Low 23
23 Environmen tal Services
Environment al Compliance decommissio ningdemolitio n
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA
reporting environmental checklist for decommissioningdemolition Surrender of EPA Licence Site
Environmental Awareness Induction S4G29 Hazard
Inspections update induction material for
decommissioningdemolition Water Sampling Program stack
and ambient monitoring reporting on EMP and reporting to EPA
ffective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environmen tal Services
Site environmenta l performance monitoring decommissio ningdemolitio n
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS
Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during
decommissioningdemolition (eg HI_Vol and noise) IMS regular monitoring reports (eg weekly) Monitoring programmes and
regular reporting
ffective 3 Moderate E Unlikely Low 21
32 Environmen tal Services
Discharges into the marine environment decommissio ningdemolitio n (including use or removal of bulk chemicals)
Contaminated drains SPELS
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Chemical oil and fuel bunding oil separation stormwater
segregation monitoring of stormwater control systems
S310 (Ferrous sulphate) S311 (Solvents) S313 (Sodium
hypochlorite) S315 (Waste oil) Pump outs Decommissioning and
demolition within containment (minimise direct discharges to
marine environment) Emergency Response Plan IMS water monitoring programme site
inspections
ffective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
33 Environmen tal Services
Site operations decommissio ningdemolitio n
Noise Nuisance Public nuisance
complaints enforcement action
Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm
weekdays 8am-6pm weekends) boundary noise monitoring
ffective 3 Moderate E Unlikely Low 21
35 Environmen tal Services
Historical operations post decommissio ningdemolitio n
Discharges to soilgroundwat er landfills
Soilgroundwater contamination Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular
monitoring of known groundwater contamination
ffective 3 Moderate E Unlikely Low 21
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure
Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement Action Owner
Strategic or Approved Action
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
36 Environmen tal Services
Environment al incidents decommissio ningdemolitio n
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for
decommissioningdemolition activities) IMS Incident Management System
ffective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
37 Environmen tal Services
Environment al awareness decommissio ningdemolitio n
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for
decommissioningdemolition activities) training and induction records (for decommissioning
demolition induction)
ffective 4 Minor E Unlikely Low 23
38 Environmen tal Services
Environment al auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition requirements (eg demolition
approval conditions)
ffective 3 Moderate E Unlikely Low 21
39 Environmen tal Services
Community complaints decommissio ningdemolitio n
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to complainant
Complaints Register Internal media advisor Reporting to
management
ffective 3 Moderate E Unlikely Low 21
40 Environmen tal Services
Annual community consultation post operation
Community perception of organisation
Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Compliance calendar ffective 3 Moderate E Unlikely Low 21
41 Environmen tal Services
Potable water use decommissio ningdemolitio n
Excessive potable water use
Resource waste
Water overuse financial cost increased risk of
Gulf contamination Resource 3 Moderate E Unlikely Low 21
Re-location of services prior to demolition
ffective 4 Minor E Unlikely Low 23
bullbull -~J- alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 8 Playford Power Stations as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
1 General Office activities
Energy use Resource use Energy overuse Resource 5 Insignificant C Likely Low 22
waste disposal costs and recyclingsalvage revenue
E ective 5 Insignificant C Likely Low 22
2 General
General waste management
General waste Resource use
Excessive waste generation Resource 4 Minor C Likely Medium 17
Waste segregation JSP 320 Unloading and Handling of Rubbish
Skips monitor re contamination E ective 5 Insignificant E Unlikely Low 25
3
General equipment
decommission ing
Industrial waste management (ex-asbestos) (Waste oil considered separately)
Industrial waste [local] storage and transport to site storage area
Waste disposalrecycling soilgroundwater contamination
Improper waste disposal contamination of waste
destination enforcement action Waste 3 Moderate C Likely High 11
Waste Management at APS S38 Disposal Procedure for Aerosol cans
etc S311 Storage Handling and Disposal of solvents etc amp S315 Storage Handling and Disposal of waste oil JSP 320 Unloading and
Handling of Rubbish Skips monitor to ensure clear identification
samplinganalysis if required Maintain waste disposal records (eg WTCs or
WTFs)
E ective 3 Moderate E Unlikely Low 21
4 APS post
production
Asbestos management
Asbestos removal storage and disposal
Air quality
Airborne asbestos enforcement action
Human Health 2 Major D Possible High 12
S32 Asbestos Management System amp site procedures qualified contractor S37 Guidelines for the safe use of insulation of materials containing
SMFs Asbestos Register air monitoring waste disposal records
(WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
5 General
decommission ing
Industrial Waste water (contaminate d drains and ash)
Overflows Marine pollution
Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 2 Major E Unlikely Medium 18
JSP117 Drain cleaning amp JSP228 Ash Pit cleaning block drains within work
areas that discharge directly to marine environment if practicable Emergency
Response Plan Spill response IMS water monitoring programme disposal
records (WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
13 Heath Safety
amp Security
Implement contingency plan decommissio ningdemoliti on
environmental contingencies
Environmental harm
Nil Improper process in place Procedural 2 Major E Unlikely Medium 18
Emergency response plans (reviewed annually) review for decommissioning demolition activities (after project plan
has been developed) Crisis Management Plan Review response
equipment and training Support procedures eg Incident Management System Station Instruction S17 (Spill
Response) S316 (Spill Reporting) S18 (Fire Reporting) S4G29 Hazard
inspections amp JSP385 Use of emergency boat IMS IMS
E ective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm
Alinta Energy Earlymid 2016
14 Heath Safety
amp Security
Fire on site decommissio ningdemoliti on
Contaminated fire water discharge
Water quality
Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 2 Major E Unlikely Medium 18
Contaminated drains system Emergency Response Plan Crisis
Management Plan review options re containment of fire water eg within
ABC Lake in preference to discharge to ash pond storage Maintenance
routines Station Instruction S17 (Spill Response) IMS Plant monitoring
E ective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
15 Heath Safety
amp Security
Site security decommissio ningdemoliti on
vandalism Site amenity
Site damage injury to persons Security 3 Moderate D Possible Medium 16 Site security systems Emergency
Response Plan E ective 3 Moderate E Unlikely Low 21
16 Heath Safety
amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates records
E ective 4 Minor E Unlikely Low 23
18 Heath Safety
amp Security
Land management landscaping (post decommissio ningdemoliti on)
Maintaining amp improving landscaping
Improved site amenity
Poor visual amenity soil erosion dust
Environmental Final landforms and potential
landscaping plan E ective
19 Heath Safety
amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections E ective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
20 Heath Safety
amp Security
Waste recycling area(s) decommissio ningdemoliti on
Waste management
Resource use
Improper waste disposal contamination of waste
destination enforcement action Resource 3 Moderate E Unlikely Low 21
Waste segregation (to improve recycling re-use) Waste management
Process Site Map S311 Storage Handling and Disposal of solvents etc Determine if the area is adequate for
decommissioningdemolition Establish additional areas for staging of material prior to re-use on site andor disposal
Control runoff (via containment pond(s) Site inspections routine visits by external recycling contractor S37
Guidelines for the safe use of insulation materials containing SMF
waste recycling records Waste disposal records (WTCs and WTFs)
E ective 4 Minor E Unlikely Low 23
21 Heath Safety
amp Security
Disposal of mercury-containing lighting (eg fluoros) decommissio ning
Landfill Soilgroundwater contamination
Improper waste disposal contamination of waste
destination enforcement action Resource 4 Minor E Unlikely Low 23
Waste segregation managed by appropriate waste management company Waste management
Process Site Map S38 Disposal Procedure for Aerosol cans empty
fluid drums small batteries permalubes and mercury globes
Provide labelled containers (eg 200L drums) for storage prior to removal Waste disposal records (WTCs and
WTFs)
E ective 5 Insignificant E Unlikely Low 25
22 Heath Safety
amp Security
Road traffic decommissio ningdemoliti on
Dust emissions Air quality
Limit exceedence public nuisance complaints
enforcement action Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust suppressant if required) Hi
VolDustTrak dust monitoring on site boundary
E ective 4 Minor E Unlikely Low 23
23 Environmental
Services
Environment al Compliance decommissio ningdemoliti on
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting
environmental checklist for decommissioningdemolition
Surrender of EPA Licence Site Environmental Awareness Induction S4G29 Hazard Inspections update
induction material for decommissioningdemolition Water
Sampling Program stack and ambient monitoring reporting on EMP and
reporting to EPA
E ective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environmental
Services
Site environmenta l performance monitoring decommissio ningdemoliti on
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS
Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during decommissioningdemolition (eg HI_Vol and noise) IMS regular
monitoring reports (eg weekly) Monitoring programmes and regular
reporting
E ective 3 Moderate E Unlikely Low 21
32 Environmental
Services
Discharges into the marine environment decommissio ningdemoliti on (including use or removal of bulk chemicals)
Contaminated drains SPELS
Water quality
Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 2 Major E Unlikely Medium 18
Chemical oil and fuel bunding oil separation stormwater segregation
monitoring of stormwater control systems S310 (Ferrous sulphate) S311 (Solvents) S313 (Sodium
hypochlorite) S315 (Waste oil) Pump outs Decommissioning and demolition
within containment (minimise direct discharges to marine environment)
Emergency Response Plan IMS water monitoring programme site
inspections
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
33 Environmental
Services
Site operations decommissio ningdemoliti on
Noise Nuisance
Public nuisance complaints enforcement action
Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm weekdays 8am-
6pm weekends) boundary noise monitoring
E ective 3 Moderate E Unlikely Low 21
35 Environmental
Services
Historical operations post decommissio ningdemoliti on
Discharges to soilgroundwater landfills
Soilgroundwater contamination
Soilgroundwater contamination clean up actions enforcement
actions Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular monitoring of
known groundwater contamination E ective 3 Moderate E Unlikely Low 21
36 Environmental
Services
Environment al incidents decommissio ningdemoliti on
Various Environmental harm
Nil Improper process in place Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for decommissioningdemolition activities)
IMS Incident Management System E ective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
37 Environmental
Services
Environment al awareness decommissio ningdemoliti on
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for
decommissioningdemolition activities) training and induction records (for
decommissioning demolition induction)
E ective 4 Minor E Unlikely Low 23
38 Environmental
Services
Environment al auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition
requirements (eg demolition approval conditions)
E ective 3 Moderate E Unlikely Low 21
39 Environmental
Services
Community complaints decommissio ningdemoliti on
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to complainant Complaints Register
Internal media advisor Reporting to management
E ective 3 Moderate E Unlikely Low 21
40 Environmental
Services
Annual community consultation post operation
Community perception of organisation
Non compliance
Nil Improper process in place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar E ective 3 Moderate E Unlikely Low 21
41 Environmental
Services
Potable water use decommissio ningdemoliti on
Excessive potable water use
Resource waste
Water overuse financial cost increased risk of Gulf
contamination Resource 3 Moderate E Unlikely Low 21
Re-location of services prior to demolition
E ective 4 Minor E Unlikely Low 23
44
Post production
coal stockpile area
Runoff from coal stockpile area (post operation)
Water quality (runoff)
Water quality Soilgroundwater contamination clean up actions enforcement
actions Environmental 3 Moderate C Likely High 11
Collection no direct marine discharges water monitoring programme
E ective 4 Minor E Unlikely Low 23
45
Post production
coal stockpile area
Post operation coal stockpile area
Fire (spontaneous combustion)
Air quality Fire smokeparticulate
emissions public amp personnel exposure
Fire 3 Moderate E Unlikely Low 21
Develop strategy to reduce risks of spon com In post operational coal stockpile area Monitoring by Alinta
staff IMS
E ective 4 Minor E Unlikely Low 23
46
Post production
coal conveyors
Coal conveyors
Coal dust (conveyorstransfer s)
Air quality Personnel exposure limit
exceedence public nuisance complaints enforcement action
Environmental 3 Moderate C Likely High 11 wash down of built up dust E ective 5 Insignificant E Unlikely Low 25
47 Post
production coal bins
Coal bin storage
Coal dust Air quality Personnel exposure limit
exceedence public nuisance complaints enforcement action
Environmental 3 Moderate D Possible Medium 16 Wash down of built up dust ambient
monitoring maintenance records E ective 3 Moderate E Unlikely Low 21
48
Fireexplosion Air quality
Coal dust explosion Fire 2 Major D Possible High 12
Review risk assessments for decommissioningdemolition
Emergency Response Plan IMS E ective 3 Moderate E Unlikely Low 21
49 APS post production
Coal plant washdown
Marine discharge Water quality Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 4 Minor D Possible Low 20
Containment of washwater JSP 107 Bunker Washing water monitoring
programme E ective 4 Minor E Unlikely Low 23
50 APS post production
Decommissio ningdemoliti on
Oil spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate E Unlikely Low 21
Contaminated drain system S17 Oil Spill Procedure review and enhance
containment options Emergency Response Plan IMS Maintenance
records
E ective 4 Minor E Unlikely Low 23
51 APS post production
Decommissio ningdemoliti on
Fuel oil spillage (eg gun malfunction)
Water quality Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate D Possible Medium 16
Operating controls S17 Oil Spill procedure contaminated drains Emergency Response Plan IMS
E ective 3 Moderate E Unlikely Low 21
52 APS post
production
Decommissio ningdemoliti on
Seawater flow Ecological impact (eg fauna loss)
ReductionIncrease in number amp abundance of local marine
species Environmental 3 Moderate E Unlikely Low 21
Review options for cooling water channels (eg breach wall)
E ective 3 Moderate E Unlikely Low 21
53 APS post
production
Decommissio ningdemoliti on
Contamination of condenser cooling water
Ecological impact
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major E Unlikely Medium 18
Review options for condensers (post production) visual
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
54 APS post
production
Boiler water drainage
Treated water discharge
Water quality Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 4 Minor D Possible Low 20
drainage into Ash pit Operating controls ambient water monitoring
programme E ective 4 Minor E Unlikely Low 23
59 APS post
production
Fly ashbottom ash handling systems decommissio ningdemoliti on
Spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major E Unlikely
Flush ash systems to ash storage area water monitoring programme
E ective 4 Minor E Unlikely Low 23
60 APS post
production
Fly ash re-use storage and handling area
Spillage Water quality Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 4 Minor D Possible
Empty and washdown plant Discharge to containment area
E ective 4 Minor E Unlikely Low 23
61 APS post
production
Decommissio ningdemoliti on
Contamination of flow to ash storage pond (eg oil)
Water quality
Spill entering ash disposal system discharge to Gulf
waters enforcement action Environmental 3 Moderate D Possible
Contaminated drains oil containment oil handling ash pond controls Ash
storage dam inspections Emergency Response Plan IMS inspection
records
E ective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
64 APS post
production
Oil removal Oil spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate C Likely High 11
Station Instructions S17 Oil Spill procedure S315 Storage Handling and Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil treatment plant Contaminated drain system Emergency Response Plan IMS water monitoring programme
E ective 4 Minor E Unlikely Low 23
65 APS post
production
Waste oil storage
Oil spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate C Likely High 11
Bunded storage S17 Oil Spill procedure S315 Storage Handling and Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil
treatment plant Emergency Response Plan IMS water monitoring
programme
E ective 3 Moderate E Unlikely Low 21
66 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up actions enforcement
actions Environmental 2 Major E Unlikely Medium 18
Bunded storage Emergency Response Plan Spill response IMS
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
67 APS post
production
Fire Air quality
Fire personnel exposure Fire 3 Moderate E Unlikely Low 21
Storage controls (minimise ignition sources) Emergency Response Plan
Crisis Management Plan IMS E ective 3 Moderate E Unlikely Low 21
68 APS post
production
Discharges into the marine environment
Contaminated drains SPELS
Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major D Possible High 12
Chemical oil and fuel bunding oil separation maintenance of SPEL
tanks stormwater segregation review of routine to inspect SPEL tanks
Emergency Response Plan IMS water monitoring programme site
inspections SPEL cleanout routines
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
69 APS post
production
Oil -filled electrical equipment decommissio ning and removal
Leakage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major E Unlikely Medium 18
Bunding S17 Oil Spill procedure JSP271 NPS Step-up Unit transformer amp line isolator
maintenance Emergency Response Plan Crisis Management Plan IMS monitoring of oil properties (eg PCB
content)
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
70 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up actions enforcement
actions Environmental 2 Major E Unlikely Medium 18
Containment of oil-filled equipment Emergency Response Plan
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
71 APS post
production
Fire explosion Air quality
Fire personnel exposure Fire 2 Major E Unlikely Medium 18 Permits containment E ective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
79 APS post
production
Demolition general
Lead emissions (from lead-based paints)
Personnel exposure limit exceedence public nuisance
complaints enforcement action Environmental 3 Moderate E Unlikely Low 21
lead paint testing dust control processes Maintenance routines lead
in paint testing (as required) and recorded
E ective 4 Minor E Unlikely Low 23
80 APS post
production
Refrigeration air conditioning servicing decommissio ning (as required)
Release of ozone depleting substances
Depletion of Ozone layer
Environmental harm regulatory enforcement
Environmental 3 Moderate D Possible Medium 16
ARC licensed operators ozone-depleting gas reclaim for
decommissioned equipment Audits based on ARC requirements JSP372 Air Conditioner Maintenance Records
of ozone-depleting substances reclaim etc
E ective 3 Moderate E Unlikely Low 21
81 APS post
production
Sewerage system relocation of services (caused by decommissio ning and demolition)
Sewage overflow Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 4 Minor D Possible Low 20
Response to sewer chokes JSP028 Sewage Pit pump and control repairs
Emergency Response Plan IMS E ective 4 Minor E Unlikely Low 23
82 APS post
production
PPS Seawall collapserem oval
Loss of material into marine environment
Water Quality Contaminated material entering
the Gulf damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18 Site inspections E ective 2 Major E Unlikely Medium 18
83 APS post
production
Earthworks Project-specific erosion and sedimentation
Project-specific marine contamination Soilsedimentash entering onsite
drains system discharge to Gulf waters enforcement action
Environmental
Project-specific EMP (by contractor(s)) APS Change Request (Form C1-1) Change Management
Procedure HSRP 330 erosion controls Project Management Manual Project-
specific water quality
E ective
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
96 Playford
Power Station demolition
Septic systems decommissio ning
Spillage Water quality HAZMAT scenario water soil amp groundwater contamination
clean up actions enforcement actions
Environmental 4 Minor D Possible Low 20 Arrange pump-outs E ective 4 Minor E Unlikely Low 23
97 Playford
Power Station demolition
Demolition stacks
Contaminated brick work
Incorrect disposal Improper waste disposal contamination of waste
destination enforcement action Waste 2 Major E Unlikely Medium 18
Containment of waste material Samplinganalysis to determine
disposal options Disposal records (eg WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
Appendix B
Augusta Power Stations
NPS Facility
Make Safe Manual
Revision Date Description Prepared by Reviewed by Approved by
0 29116 Initial draft
1 23216 First revision PMAPS FM
2 29216 Second revision ndash removed FM from activities
PMAPS FM
3 51016 Corrections
Distribution List
TBA
Decommissioning Manual ndash NPS
Index
1 Introduction 4
2 Closure Philosophy 4
3 Closure Strategy 4
4 Responsibilities 4
5 Titles 4
6 BoilerGenerator Unit 5
61 Turbine 5
611 Turbine Oil System 5
612 Condenser Condensate side 5
613 Condenser Seawater side 6
614 Turbine Valves 7
62 Generator 7
621 Hydrogen System 7
63 CW System 8
631 Chambers 8
632 CW pumps 9
633 CW Screens 9
634 CW Ducts 10
64 Feedwater System 10
641 LP Feedwater 10
642 Boiler feed Pumps 11
643 HP Feedwater 11
641 Feed Make-up 12
65 Boiler 12
651 Pressure parts 12
652 Furnace and Gas path 13
66 Draught Plant 14
67 Valves 15
68 Main Pipework 15
69 ACW System 16
691 ACW Seawater Side 16
692 ACW Fresh water Side 16
610 Coal System 17
6101 Train Unloading 17
6102 Bins and Bunkers 17
6103 Conveyors 18
6104 Coal Feeders 18
6105 Mills 19
611 Fuel oil system 19
6111 Fuel oil pumps 19
6112 Fuel Oil Storage 20
612 Ash System 21
6121 Sluice Pumps 21
6122 Hoppers 21
6123 Precips 22
6124 Deasher 22
Appendix B NPS Make Safe Manual Correcteddocx - 2 -
6125 Ash Pit 23
7 Electrical Systems 23
71 Control Systems 23
72 Instrumentation 24
73 DC System 24
731 220 V System 24
732 110 V System 25
733 24 V System 25
74 HV 26
741 High Voltage Disconnections 26
75 Switchboards 26
751 66 kv 26
76 Transformers 27
77 Diesel Generators 27
8 Station Auxilliaries 28
81 Aux blr 28
82 Compressed Air System 28
83 Water treatment plant 29
84 Fire protection System 29
85 Cranes and Lifts 30
86 TW and Drains system 31
87 Stack 31
9 Services 32
91 Workshops 32
92 Heavy machine and Mobile Plant 33
93 Admin 34
94 Document information and management 34
95 Security 35
10 Infrastructure of Interest 35
101 CW System 36
102 Workshops 36
103 Water storage tanks 37
104 PPS Diesel Fire pumps 37
11 Appendix 37
111 Legal and other Requirements 37
1111 Legislation and Strategies 37
1112 Alinta Policies 38
112 References 39
113 Project Plan 40
114 NPS Administration 40
1141 NPS Isolations 40
1142 NPS Closure Audit 40
115 NPS Residual Risks 41
Appendix B NPS Make Safe Manual Correcteddocx - 3 -
1 Introduction
The Northern Power Station has been operating in a flexible generating profile and has been able to respond to Market opportunities over the past few years Since the application of Scenario 1 to NPS generation profiles and significant increase in Wind and Solar generation in the SA market it has become increasingly difficult to maintain a commercial return on APS Electricity Production This has resulted in a decision by the Alinta Board to close the Power Station in Q2 of 2016
2 Closure Philosophy
The closures of the NPS site are outlined in the Lease Agreement and require Alinta to rehabilitate the APS site to its pre-developed condition The Closure Plan seeks to facilitate the removal of the Power Station infrastructure to manage all of the Asset removal with no impact on the surrounding environsrsquo meet all condition of the Lease Agreement and Legislative requirements
Alinta acknowledges that the demolition and site rehabilitation works are deemed to be lsquoHigh Riskrsquo work activities and will ensure appropriate management of this work in accordance with WHS Act 2012 and Regulations
Alinta will ensure the key principle of lsquoZero Harmrsquo will be embedded in all activities associated with the Closure Disposal and Remediation of the NPS site in accordance with the Lease Agreement
3 Closure Strategy
The focus of this manual is to outline activities to be carried out to make the plant safe for disposaldemolition by third parties
Key objectives are to remove all foreseeable hazards to the environment and salvagedemolition personnel during the remediation programme
4 Responsibilities
The `Plant managerrsquo will seek approval of Closure plans and allocate resources to implement the effective management and Make Safe activities of the NPS site prior to handover to the Facilities Manager and contractors for demolitionrehabilitation
The lsquoFacilities Managerrsquo and the Project team will communicate the sequence and timing of activities in accordance with this plan to internal stakeholders and external parties and contractors as required The FM will also lead a small team of experts to oversee the demolition and remediation activities
5 Titles
Facilities Manager - FM Operations amp Maintenance Manager ndash OMM Production Manager Augusta - PMA Scientific Services an Chemical Superintendent - SSCS
Appendix B NPS Make Safe Manual Correcteddocx - 4 -
6 BoilerGenerator Unit
61 Turbine
611 Turbine Oil System
Asset Management Strategy
Remove hazards present to the environment and personnel from the Lube oil systems during decommissioning
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommission operation
Item Plant Description Proposed Actions Responsibility
1 Lube Oil System Drain all lube oil and seal oil to main tank OMM
2 Lube Oil Tank
Monitor lube oil tank for potential leaks until handover to FM and contactors for final decommissioing OMM
3 Oil pumps Isolate electrical supplies to Oil Pumps OMM
4 Seal oil tank Drain the Seal Oil system OMM
5 Seal oil pumps Isolate electrical supplies to Seal Oil Pumps OMM
612 Condenser Condensate side
Asset Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 5 -
Eliminate the possibility of toxic gases andor pressure build up in the system during decommissioning
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Item Plant Description Proposed Actions Responsibility
Condenser and CEPrsquos
Open all drain vvrsquos and open up condenser doors OMMOMM
CEP MotorPump Drain motor and Pump oil OMM
613 Condenser Seawater side
Asset Management Strategy Minimise build-up of toxic gases from decomposed marine growth in the Condenser
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Item Plant Description Proposed Actions Responsibility
1 Condenser Seawater side
Open all condenser drain valves once the condenser is isolated from the CW chamber OMM
Gas test for toxic gases OMM
Appendix B NPS Make Safe Manual Correcteddocx - 6 -
614 Turbine Valves
Asset Management Strategy Minimise hazards to the environment and personnel in the Valve Control oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
ITEM Plant Description Proposed Actions Responsibility
1 Major turbine vvrsquos Isolate electrical supplies to Valves OMM
11 Drain control oil actuators and pipework OMM
2 HP and LP By-pass vvrsquos
Decommission and drain Control stations and accumulators OMM
62 Generator
521 Generator Rotor
Asset Management Strategy Removing hazards to the environment and personnel from the Generators
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Item Plant Description Proposed Actions Responsibility
Generator Casing
Isolate hydrogen from generator case and purge casing OMM
621 Hydrogen System
Asset Management Strategy Shutdown Hydrogen system to prevent any risk of hydrogen fuelled fire or explosion
Appendix B NPS Make Safe Manual Correcteddocx - 7 -
Controls The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 Hydrogen System
Shut down isolate and purge Hydrogen system OMMSSCS
2 Hydrogen System
Remove all Hydrogen supplies from site once second Unit is OOS OMM
63 CW System
631 Chambers
Asset Management Strategy Isolate the inletoutlet channel water from the Condenser basements
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
CW pumps
Fit blanks to the CW pump discharge pipe to isolate the chamber from the Condenser basement
OMM
CW pump Drain Oil from pump OMM
Taprogge recirc pumps Drain oil from pumps OMM
Dosing pumps (hypo chlorFE chlor Drain oil from pumps OMM
Chlorine Plant Shut down and flush chemicals from lines SSCS
Appendix B NPS Make Safe Manual Correcteddocx - 8 -
Chlorine plant pipework Drain and dry store SSCS
Electrolysers Drain and dry store SSCS
Chlorine storage tank Drain and dry store SSCS
632 CW pumps
Asset Management Strategy Remove environmental contaminants from CW pumps
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
5321
CW pumps Drain oil from CW pp bearings OMM
CW Pump Motors Isolate motor heaters OMM
Empty chamber remove CW pumps and blank off CW pump discharge pipe OMM
633 CW Screens
Asset Management Strategy Remove environmental contaminants from CW screens
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Appendix B NPS Make Safe Manual Correcteddocx - 9 -
Plant Description Proposed Actions Responsibility
5331
CW Screens Drain oil from CW screen gearboxes not required by third party OMM
634 CW Ducts
Asset Management Strategy Minimise build-up of toxic gases from decomposed marine growth in the Condenser
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommission operation
Plant Description Proposed Actions Responsibility
5331
CW Ducts Isolate from CW chamber and pump dry OMM
64 Feedwater System
641 LP Feedwater
Asset Management Strategy Eliminate the possibility of gases andor pressure build-up in the system
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
LP feedheaters Open drains and doors OMM
GS Condenser Open drains and doors OMM
Appendix B NPS Make Safe Manual Correcteddocx - 10 -
LP Ejector Open drains and doors OMM
Deaerator and DAFT Open drains and doors OMM
DA off load circ pump Drain oil from pump OMM
Ammonia dosing pump Drain oil from pump OMM
642 Boiler feed Pumps
Asset Management Strategy Remove any hazards to the environment or personnel in the Boiler Feed pumps
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
1
Boiler feed pp amp DAFT header Isolate and drain system OMM
Drain oil from BFPrsquos and GTDrsquos OMM
643 HP Feedwater
Asset Management Strategy Minimise possibility of gases andor pressure build up in the system
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Appendix B NPS Make Safe Manual Correcteddocx - 11 -
Plant Description Proposed Actions Responsibility
HP6 amp 7 Drain HP Heater shell and store dry OMM
Drain Feedwater side and store dry OMM
641 Feed Make-up
Asset Management Strategy
Drain systems to minimise internal corrosion
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 Feedwater make up heater Drain and store dry OMM
2 Hot Condesate Storage tank Drain and store dry OMM
3 RFW Tanks Drain and store dry OMM
65 Boiler
651 Pressure parts
Asset Management Strategy Minimise possibility of gases andor pressure build up in the system
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Appendix B NPS Make Safe Manual Correcteddocx - 12 -
Plant Description Proposed Actions Responsibility
Boiler Tubes amp Superheaters
Boilers to be removed from service amp drained hot OMM
Open up all drains and vents OMM
Valves - general Drain oil from actuators OMM
Valves - Blr safety vvrsquos Relieve spring tension OMM
Blowdown vessels Ensure drain vvs are open OMM
652 Furnace and Gas path
Asset Management Strategy
To ensure furnace is clear of ashslag deposits to minimise the potential for corrosion and environmental contamination during the Care period
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1
Furnace super htr area and penthouse
Gas path to be washed including penthouse All dead spaces including inside nose and either side of boiler throat all ash hoppers to be cleaned amp left dry OMM
2 Water walls Washed out after shut down and dry store OMM
3 Economiser Washed out after shut down and dry store OMM
Appendix B NPS Make Safe Manual Correcteddocx - 13 -
66 Draught Plant
Asset Management Strategy Minimise any residual hazards remaining in the Draught Plant
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
Air heaters WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
ID fans WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
PA fans WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
SA fan WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
GR fans WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
Appendix B NPS Make Safe Manual Correcteddocx - 14 -
ID PA SA GR Motors Disconnect motor heater power supplies OMM
DuctsDampers WashedVaccuumed out OMM
Drain oil from damperactuator gearboxes OMM
67 Valves
Asset Management Strategy Minimise any residual hazards or kinetic energy remaining in the valves on site
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Selected safety valves
Relieve all spring tensions based on individual risk assesments OMM
68 Main Pipework
Asset Management Strategy Minimise any residual hazards remaining in the Pipework
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Main pipework from Boiler to Turbine Open all vents and drains OMM
Appendix B NPS Make Safe Manual Correcteddocx - 15 -
69 ACW System
691 ACW Seawater Side
Asset Management Strategy Minimise build-up of toxic gases from decomposing marine growth in the ACW pipework and heat exchangers and remove environmental hazards
Controls The following controls have been identified to eliminate the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Heat exchangers Isolate and drain heaters of seawater OMM
ACW pumps Drain oil from the bearings OMM
ACW system Open all drains and vents OMM
Test for toxic gases OMMSSCS
692 ACW Fresh water Side
Asset Management Strategy Remove environmental hazards from the ACW system
Controls The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Coolers Drain all ACW coolers OMM
Pumps Drain oil from pumps OMM
Appendix B NPS Make Safe Manual Correcteddocx - 16 -
610 Coal System
6101 Train Unloading
Asset Management Strategy To minimise environmental hazards
Controls
The following controls have been identified to minimise the hazards to the environment
Plant Description Proposed Actions Responsibility
Train unloader WashVaccuum all hoppers feeders and conveyor systems OMM
Unloader walls
Monitor water level in Unloader pitValve in wall to be opened periodically to relieve water pressure on walls Note Needs to be condition included in transfer agreement OMM
Unloader sump
Unloader sump pump will need to be maintained Note Once supply to Unloader is decommissioned sump pump will not operate OMM
6102 Bins and Bunkers
Asset Management Strategy To minimise environmental hazards
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Bins Emptied and washed out OMM
Ploughs Park ploughs in bypass position and wash down OMM
Appendix B NPS Make Safe Manual Correcteddocx - 17 -
Drain gearbox oils OMM
Trippers Wash down trippers OMM
Drain gearbox oils OMM
Bunkers Empty and Wash out bunkers OMM
6103 Conveyors
Asset Management Strategy Remove environmental kinetic energy and fire hazards from the coal system
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Conveyors Shutdown Coal conveyor systems and wash down OMM
Conveyors Drain oil from gearboxes OMM
Release belt tensioners and lower weights to the ground and secure OMM
Coal line Fire System
Maintain fire detection and deluge systems until Make safe is complete in accordance with OEM OMM
Coal line Fire System
Maintain fire detection and deluge systems in accordance with OEM OMM
6104 Coal Feeders
Asset Management Strategy To minimise environmental hazards
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 18 -
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Mill feeders Emptied out on shutdown and washed out for dry store OMM
Mill feeders Drain gearbox oils OMM
6105 Mills
Asset Management Strategy Remove environmental contaminants and kinetic energy from the coal Mills
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Mills Empty out Mills and wash out for dry store OMM
Mills
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
Release mill roller spring tension OMM
611 Fuel oil system
6111 Fuel oil pumps
Asset Management Strategy Remove environmental contaminants from Fuel oil system
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Appendix B NPS Make Safe Manual Correcteddocx - 19 -
Plant Description Proposed Actions Responsibility
Oil guns
Remove guns and store in Mills Workshop with supply lines capped and nozzles plugged OMM
FO heaters Drain fuel oil heaters OMM
FO pipework Drain fuel oil pipework OMM
FO transfer pps Drain bearing oil OMM
6112 Fuel Oil Storage
Asset Management Strategy Remove environmental contaminants from Fuel oil system
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
FO storage Run stocks of FO to minimum level PMA
Monitor FO storage tanks and distribution system for potential leaks prior to handover to FM for contactor final decommissioning OMM
FO Service Tank Run stocks of FO to minimum level PMA
Clean storage tanks of residual oil to eliminate potential leakrsquos to the environment during storage and de-commissioning Inspect internally prior to removal FM
Appendix B NPS Make Safe Manual Correcteddocx - 20 -
612 Ash System
6121 Sluice Pumps
Asset Management Strategy
Drain systems to minimise internal corrosion and marine growth
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 HP amp LP Sluice pump pipework Drain all pipework and dry store OMM
2 LP Sluice Pumps Isolate pumps OMM
3 HP Sluice pumps Drain pump bodies and dry store OMM
6122 Hoppers
Asset Management Strategy
Reduce the risk of ash hang ups and internal hopper corrosion during an Care period
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 Third pass Wash out hoppers after shutdown and dry store Remove E vvrsquos OMM
2 Primary Air Heater Hoppers
Wash out hoppers after shutdown and dry store Remove E vvrsquos OMM
3 Secondary Air Heater Hoppers
Wash out hoppers after shutdown and dry store Remove e vvrsquos OMM
Appendix B NPS Make Safe Manual Correcteddocx - 21 -
4 Precip Hoppers
Remove E Valves Wash down Precip and Hoppers dry out with hopper heater for 24 hours and isolate heaters and dry store OMM
5 Ash Transfer Plant
Empty and wash out vessels dry store Isolate all Electrical and Air Supplies to Ash Transfer plant OMM
6 Ash Silo Empty and wash out vessels dry store Isolate all electrical supplies to Silo OMM
6123 Precips
Asset Management Strategy Remove environmental contaminants from Precipitators
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Internals Full wash of Precip internals Open doors and allow to dry OMM
Rappers Drain oil from rapper gearboxes OMM
6124 Deasher
Asset Management Strategy Remove environmental contaminants from Deashers
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
De-asher
Remove the de-asher to the maintenance position and wash out for dry store Barricade bottom of boiler to restrict access while de-asher removed OMM
Appendix B NPS Make Safe Manual Correcteddocx - 22 -
7
Crusher
Wash out ash crusher
OMM
De-asher Drain oil from hydraulic units OMM
Crusher Drain oil from crusher gearbox OMM
6125 Ash Pit
Asset Management Strategy
Maintain storm water control for the duration of decommissioning
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Ash pit
Install a suitably sized submersible pump connected to one of the Ash Pond discharge pipes to cater for rain events prior to handover to FM and contractors for final decommissioning
OMM
Electrical Systems
71 Control Systems
Asset Management Strategy Minimise the risk of residual power sources associated with the control systems
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Appendix B NPS Make Safe Manual Correcteddocx - 23 -
Plant Description Proposed Actions Responsibility
FCS Battery systems Remove low voltage DC battery packs OMM
Fire Safety System Remove DC inverter OMM
72 Instrumentation
Asset Management Strategy Eliminate the risk of electric shock from residual power sources
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Instruments o2 press temp hydrogen analysers cameras oil flows water quality level
Remove tag with KKS amp Physical location and store in Instrument Workshop
OMM
AC Supply to FCS stations
Isolate AC supply to FCS stations
OMM
Inverter Supply Isolate and decommission Inverter supplies to Control System
OMM
73 DC System
731 220 V System
Asset Management Strategy Minimise the risk of DC Arc flash and LeadAcid hazards
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 24 -
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
220V Batt Charger and bank
Decommission battery charger and remove batteries Wash down battery stands and floors to remove residual sulphuric hazards OMM
732 110 V System
Asset Management Strategy Minimise the risk of DC Arc flash andndash LeadAcid hazards
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
110V Batt Charger and bank
Monitor 220v amp 110v battery systems until handover to FM and contactors for final decommissioning To be included in contractor agreement (Decommission battery charger and remove batteries once 275kV lines are decommissioned (line protection) Wash down battery stands and floors to remove residual sulphuric hazards) OMM
733 24 V System
Asset Management Strategy Minimise the risk of DC Arc flash andndash LeadAcid hazards
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
24V Batt charger and bank
Decommission battery charger and remove batteries Wash down battery stands and floors to
OMM
Appendix B NPS Make Safe Manual Correcteddocx - 25 -
I I
remove residual sulphuric hazards
74 HV
741 High Voltage Disconnections
Asset Management Strategy Apply a perimeter isolation to the 275132kV switchyards to Eliminate risk of Electric Shock by disconnecting all HV supplies at major terminal points in switchyards Eliminate the possibility of a transformer oil spill to the surrounding environment
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
275kV supply
Maintain protection systems for 275kV system until handover to FM to arrange disconnection agreement with Electrenet OMM
132kV Disconnect from House transformer OMM
75 Switchboards
751 66 kv
Asset Management Strategy To remove any kinetic energy stored in the 66kV switchgear
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Appendix B NPS Make Safe Manual Correcteddocx - 26 -
66 Breakers Rack out breakers and discharge spring tension OMM
76 Transformers
Asset Management Strategy
Eliminate the possibility of a transformer oil spill to the surrounding environment
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
275kV Transformer
Isolate 275kV at connection point at switchyard
OMM
Monitor all transformers for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Drain all transformer oil and box up transformer case )
OMM
132kV Transformer (House)
Monitor all transformers for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Drain all transformer oil and box up transformer case )
OMM
77 Diesel Generators
Asset Management Strategy Remove the Diesel Generators from service
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Appendix B NPS Make Safe Manual Correcteddocx - 27 -
8
Plant Description Proposed Actions Responsibility
Diesel Generators
Monitor Diesel Gensets for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Remove Gensets from service) OMM
Station Auxilliaries
81 Aux blr
Asset Management Strategy Remove any remaining residual contaminants
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Aux Boiler Fuel Oil Tank
Monitor Aux Boiler FO system for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Drain Aux Boiler FO tank) OMM
82 Compressed Air System
Asset Management Strategy Shut down assets and depressurise the system and remove environmental contaminants
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 28 -
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Air compressors
Monitor Compressors for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Decommission compressors and separators) FM
83 Water treatment plant
Asset Management Strategy Remove any remaining residual contaminants Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Reverse Osmosis Plant
Decommission and store in accordance with OEM recommendation
OMMSSCS
Water treatment Plant
Drain all vessels remove all resins chemical and dispose of Dry store all tanks and vessels
Remove all Resin and put to land fill OMMSSCS
84 Fire protection System
Asset Management Strategy
Decommission fire protection system and remove environmental contaminants
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Appendix B NPS Make Safe Manual Correcteddocx - 29 -
I I
Plant Description Proposed Actions Responsibility
Fire feedwater Isolate town water to fire pumps and drain all mainfolds OMM
Fire Deluge System
Drain fire system at fire pump discharge and at each deluge system OMM
Diesel Fire Pump Decommission drain fuel engine oil and coolant OMM
Electric fire pumps Isolate and decommission OMM
Fire detection system
Isolate and decommission fire detection system including the removal of DCP lead acid batteries OMM
Fire Halon systems
Decommission and remove Halon cyclinders from control room under floor system OMM
Vesda detection system Decommission and remove backup batteries OMM
Portable fire extinguishers
Monitormaintain all fire extinguishers until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Remove all fire extinguishers for site and dispose of) OMM
85 Cranes and Lifts
Asset Management Strategy Decommission and de-register lifts and cranes in preparation for demolition
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Appendix B NPS Make Safe Manual Correcteddocx - 30 -
All Lifts Maintain operation of Turbine Hall and Boiler lifts until handover to FM and contactors for decommissioning
To be included in contractor agreement All lifts to be decommissioned OMM
NPS Cranes Monitor all cranes and hoists for potential oil leaks prior to handover to FM and contractors for decommissioning To be included in contractor agreement (Drain oil from all cranes and hoist gearboxes and decommision) OMM
86 TW and Drains system
Asset Management Strategy
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Contaminated Drains Pit and associated pumps
Maintain in normal operation This ensures any run off from rain event do not carry any pollutants into the surrounding environment without being removed in the contaminated drains pits until handover to FM and contractors for decommissioning Note Once supply to CW switch room is decommissioned the oil skimmer in the sump will no longer operate To be included in contractor agreement (Decommission the contaminated drains system and settling pond) OMM
Condenser Sumps
Installation of temporary submersibles needed to maintain sumps dry if required Note Once Turbine 415V boards are decommissioned sump pumps will no longer operate OMM
87 Stack
Asset Management Strategy
Ensure we meet aviation standards of Stack lighting after Closure
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 31 -
9
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Stack
Provide alternative lighting of the stack to comply with CASA minimum standard for Aviation requirements OMM
Services
91 Workshops
Asset Management Strategy Minimise any hazards that may impact on demolition crews and chemicalgas hazards to surrounding environs
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Tubemakers Storage shed
Inventory and remove all plant tools and equipment for disposal
Salvage all materials held in store
Review and approve contractor demolition plan including sewage system OMM
Appendix B NPS Make Safe Manual Correcteddocx - 32 -
decommissioning and site rehabilitation
Garage Workshop
Decommission all Electrical supplies town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
OMM
Mitsubishi Spares Shed
Decommission all Electrical supplies town water systems to store
Remove all stock and spares for disposal
OMM
Cylinder Store Compound
Remove all stock of gas cylinders and return to suppliers
OMM
Coal Line and Electrical Workshop
Maintain Electrical supplies town water and black water systems to workshop for third party transfer
Inventory and remove all plant tools and equipment for disposal
OMM
Mills Workshop
Decommission all Electrical supplies town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
OMM
Plant Workshop
Decommission all Electrical supplies town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
OMM
Plant Tools and equipment disposal
Commission an auction house to promote and conduct a plant tools and equipment disposal on site on behalf of Alinta OMM
Residual plant tools and equipment
Non disposlable item to be scrapped and removed from site by merchant OMM
92 Heavy machine and Mobile Plant
Appendix B NPS Make Safe Manual Correcteddocx - 33 -
Asset Management Strategy Minimise any hazards that may impact on demolition crews
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Heavy Plant
Inventory heavy plant items and place on consignment with Heavy Machinery reseller This to be done in parallel with Dozing operations on the residual coal stocks held on APS stockpile OMM
Mobile Plant Inventory mobile plant items and place on consignment with Heavy Machinery reseller OMM
Light Vehicle
Develop a light vehicle return strategy as vehicle leases expire sufficient vehicle to conduct Care to Closure activities return all vehicles at the commencement of demolition phase OMM
93 Admin
Asset Management Strategy Minimise any hazards that may impact on demolition crews
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
PA system throughout the workshop offices station and general site
Required for site communications emergency notices and evacuations by skeleton staff
OMM
94 Document information and management
Asset Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 34 -
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Documents Determine what data is required to be stored OMM
Determine where the data will be stored OMM
Historical interest data
Determine who would be interested in taking this PMAPS
Pressure Vessel registration
Advise Worksafe SA when plant is decommissioned OMM
95 Security
Asset Management Strategy To continue site security until such time as Third parties take control
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Security Maintain Security contract OMM
10 Infrastructure of Interest
The following infrastructure and plant has been identified as possibly of Interest to Third Party users after Closure
Appendix B NPS Make Safe Manual Correcteddocx - 35 -
101 CW System
Asset Management Strategy To identify the system requirements of the CW plant for continued use by third party
Assumptions Third party will own operate and maintain CW infrastructure including power supplies and EPA
license requirements
Plant Description Consequential Plant Responsibility
1
Sluice ACW and Sundrop pumps
Power supply ndash 66kV415v transformer will be decommissioned as part of the demolition process Alternative power supply will need to be established to continue operation
OMMThird Party
2
Contaminated drains system
To ensure any contaminent spillage is prevented from entering the surrounding environs The transfer pump pit will remain connected to the 11kV ring feed however the transfer pumps at the Contaminated drains settling pond is currently fed from the town water switch room which will be decommissioned Alternative power supply will need to be established at the settling pond for this system to remain operational
OMMThird Party
102 Workshops
Asset Management Strategy To identify the system requirements of the Workshops at NPS for continued use by third
party
Assumptions Third party will own operate and maintain Workshop buildings including power supplies Town
water and Black water system
Plant Description Consequential Plant Responsibility
Workshops
Town water reticulation will need to be dispersed between third parties with separation of metering points Black water system backbone will need to be retained Existing Power supplies may be disconnected during demolition 11kV 415v pad mount will
OMMThird Party
Appendix B NPS Make Safe Manual Correcteddocx - 36 -
need to be installed at the WTP to supply the Mech workshop Existing 11kV 415v pad mount power supply to Electrical workshop should remain if required
103 Water storage tanks
Asset Management Strategy To identify the functionality requirements of the Town Water storage tanks for continued use
by third party
Assumptions Third party will own operate and maintain Town Water storage tanks including water connection
and agreement with SA Water
Plant Description Consequential Plant Responsibility
Town water storage tanks
Town water supply from SA Water Alternative power supply for TW switchroom and associated pumps will be required to keep this plant operational
OMMThird Party
104 PPS Diesel Fire pumps
Asset Management Strategy To identify the functionality requirements of the PPS Fire diesel pumps for continued use by
third party
Assumptions Third party will own operate and maintain PPS Fire Diesel pumps including power supplies and
EPA license requirements
Plant Description Consequential Plant Responsibility
PPS Fire Diesel pumps
Diesel pumps are a standalone system and can be plumbed to suit delivery where required
OMMThird Party
11 Appendix
111 Legal and other Requirements
1111 Legislation and Strategies
Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 37 -
Comply with all Legislation and Lease agreements during the Closureremediation process
Controls
Item Proposed Actions Responsibility
1 NorthernPlayford Generating Plant Lease PMAPS
2 NorthernPlayford Land Lease PMAPS
3 Environmental Compliance Agreement PMAPS
4 SA Generation Licence PMAPS
5 EPA Licences PMAPS
6 AEMO Certification PMAPS
7 Pressure Vessel Registrations PMAPS
8 Crane Registrations PMAPS
9 WHS Act amp Regulations PMAPS
10 Code of Practice ndash Demolition Work PMAPS
1112 Alinta Policies
Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 38 -
Controls
Item Description Proposed Actions Responsibility
1
Compliance Guideline HSSE-019 Demolition and Decommissioning Adhere to Alinta Policy PMAPS
112 References
Item Document Responsibility
1 Care to Closure Risk Assessment PMAPS
2 NPS Care to Closure Plan PMAPS
3 PPS Hibernation Manual PMAPS
4 PPS Closure Manual PMAPS
5 NPS Lube schedules PMAPS
6 Inspection and Audit sheet PMAPS
7 APS Sewerage and Septic systems (Sharepoint) PMAPS
8 APS Contaminated Drains system (Sharepoint) PMAPS
9 APS Transmission line layout (Sharepoint) PMAPS
Appendix B NPS Make Safe Manual Correcteddocx - 39 -
113 Project Plan
114 NPS Administration
1141 NPS Isolations
Asset Management Strategy
To wind back plant and system isolations to Perimeter isolationsdisconnections
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Item Proposed Actions Responsibility
Resource plan Track actions against plan OMM
1142 NPS Closure Audit
Asset Management Strategy
To provide an Auditable record of controls put in place to render the site as safe as reasonably practical for salvagedemolition
Controls
The following Controls have been identified to
Item Proposed Actions Responsibility
1 Raise work orders for each control action OMM
Appendix B NPS Make Safe Manual Correcteddocx - 40 -
2 Complete Inspection amp Audit sheets as each system is made safe OMM
115 NPS Residual Risks
Management Strategy
To highlight to the salvagedemolition third parties any Residual risks remaining that are beyond the Alinta Energy Closure workscope
Item Residual Risks Responsibility
Stack Aviation lighting requirements will need to be met until the stack is demolished PMAPS
Boiler structure Aviation lighting requirements will need to be met until the boiler is demolished PMAPS
Boiler burners Asbestos sheet gaskets exists between each burner and the boiler front (48 in total) PMAPS
66 Breakers Contain asbestos backing boards PMAPS
Air Heaters Bearing oil baths will contain oil PMAPS
Mill Spring pits The Gerb springs supporting the Mills contain a thick composite oil in the damper packs PMAPS
Underground Fuel tanks
There is an underground petrol tank at the SE corner of the NPS Store PMAPS
Transformers Some of the 415V transformers contain Freon gas PMAPS
Fire deluge system
There are some mercury switches used in the Fire deluge systems PMAPS
Appendix B NPS Make Safe Manual Correcteddocx - 41 -
Generator circuit breakers The generator CBrsquos contain SF6 gas PMAPS
Appendix B NPS Make Safe Manual Correcteddocx - 42 -
Appendix C
alintaSFE everyone every day every job Zero Harm
Augusta Power Station
Playford Facility
Closure Manual
Revision Date Description Prepared by Reviewed by Approved by
A 1915 First Draft
B 51016 Corrections
C
Distribution List
Augusta Management Team
Closure Manual ndash PPS
Index
1 Introduction 3
2 Closure Philosophy 3
3 Closure Strategy 3
4 Responsibilities 3
5 PPS Closure 4
51 Turbine Generator 4
511 Turbine 4
512 Condenser Sea Side 5
513 Condenser Condensate Side 5
514 Turbine Valves 6
515 Generator 6
516 Turbine Auxiliaries 7
52 Boiler 8
521 Boiler Systems 8
522 Feedwater Systems 9
523 Boiler Feed Pumps (BFP) 9
524 Draught Plant 10
53 Station Auxiliaries 11
531 Electrical 11
532 Coal Systems 17
533 Fuel Oil 19
534 Ash Systems 20
535 Compressed Air 22
536 CW Systems 22
537 Water Treatment Plant 24
538 Town Water and Drains 25
539 Fire Protection system 25
5310 Workshops and Offices 26
6 Appendix 27
61 Legal and other Requirements 28
611 Legislation and Licences 28
612 Alinta Policies 29
613 References 29
62 Project Plan 29
63 PPS Administration 29
631 PPS Registered Plant 29
632 PPS Isolations 30
633 Closure Audit 30
7 PPS Residual Risks 31
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 2 -
1 Introduction
The Playford Power Station began operation in the early 1960rsquos as a Base load Station through to the late 1980rsquos It then began operating as reserve generation for peak demand periods through to 2012 PPS was then placed into Hibernation on a 90 day recall With the continuing market supply from Wind and Solar generation it was announced in 2015 that Playford along with NPS is no longer required and will be Shutdown and Decommissioned and the site Remediated in line with the Generating Lease Agreement
2 Closure Philosophy
The Closure plan seeks to facilitate the removal of the Power Station infrastructure to manage all of the Asset removal with no impact on the surrounding environsrsquo meet all condition of the Lease Agreement and Legislative requirements
Alinta acknowledges that the demolition and site rehabilitation works are deemed to be lsquoHigh Riskrsquo work activities and will ensure appropriate management of this work in accordance with WHS Act 2012 and Regulations
Alinta will ensure the key principle of lsquoZero Harmrsquo will be embedded in all activities associated with the Closure Disposal and Remediation of the APS site in accordance with the Lease Agreement
3 Closure Strategy
The Closure Strategy will be to remove all foreseeable hazards remaining at PPS to make the plant Safe to the environment and SalvageDemolition personnel during the remediation programme by completing the activities outlined in this document
4 Responsibilities
The lsquoFacilities Managerrsquo will seek approval of Closure plans and allocate resources to implement the effective management and closure of the PPS site to meet the lease agreement Communicate the sequence and timing of activities in accordance with this plan to internal stakeholders and external parties as required
The lsquoFacilities Remediation Project Managerrsquo will consult and liaise with the Demolition and Remediation contractors on site and will be supported by a number of Technical Specialists and Contract Administrators
The `Facilities Safety and Environment Managerrsquo will develop the framework for `High Riskrsquo demolition works and ensure subcontractors comply with all legislative requirements associated with the remediation works
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 3 -
5 PPS Closure
51 Turbine Generator
511 Turbine
5111 Lube Oil Systems
Asset Management Strategy Minimise residual hazards remaining in the Lube oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
TG Lube Oil systems
Plant Description Proposed Actions Responsibility
Main Oil tank InspectRemove any residual oil from the main oil tanks
Lube oil pipework
InspectRemove any residual oil from the lube oil pipework system
Oil centrifuges Drain gearbox oil and empty oil from bowl
5112 Seal Oil Systems
Asset Management Strategy
Minimise residual hazards remaining in the Seal oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Seal Oil system
Plant Description Proposed Actions Responsibility
Seal Oil tank InspectRemove any residual oil from the Seal oil tanks
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 4 -
Seal oil pipework
InspectRemove any residual oil from the Seal oil
pipework system
Seal oil vac pprsquos Drain oil from pprsquos
512 Condenser Sea Side Asset Management Strategy
Minimise build up of toxic gases from decomposed marine growth in the Condenser
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Condenser water boxes Open doors and drains on condensers and air dry
Check for gases in water boxes prior to demolition
513 Condenser Condensate Side Asset Management Strategy
Minimise the risk of build up of gases in this space
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 5 -
Plant Description Proposed Actions Responsibility
EE Condensers Open up condensate drains
Stal condensers Open up drains
Condensate gases Check for gases in condensate space prior to demolition
514 Turbine Valves
Asset Management Strategy
Minimise residual hazards remaining in the Valve Control oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Turbine Stop valves Drain all control oil
Turbine Throttle valves Drain all control oil
515 Generator Asset Management Strategy
Prepare Generators for demolition
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 6 -
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Generator Remove all access doors and open to atmosphere
Check for gases in generator space prior to demolition
Exciter breaker Release kinetic energy in exciter breaker
516 Turbine Auxiliaries Asset Management Strategy
Eliminate the possibility of gases andor pressure build up in the system during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
EE DC Htr and DC htr ext pps Open all drains and vents
Drain oil from pp bearings
Shunt DA pprsquos Drain oil from bearings
EE LP1 htr Open all drains and vents
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 7 -
Stal Gland leakage condensers DC Htr and DC htr ext pps Open all drains and vents
Stal Gland steam cooler Open all drains and vents
Stal Ejector condensers Open all drains and vents
Stal Gland leakage condensers and clean drains tank Open all drains and vents
Stal Auxillary steam vessels Open all drains and vents
All Vessels Check for gases in all Auxiliary vessel spaces prior to demolition
52 Boiler
521 Boiler Systems
5211 Pressure Parts
Asset Management Strategy
Minimise possibility of gases andor pressure build up in the system during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Boiler Tubes and Drums
Open top and bottom drum doors and open all vents and drains
Check for gases in all spaces prior to demolition
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 8 -
Sootblowers Drain sootblower gearbox oil
522 Feedwater Systems
5221 HP Heaters
Asset Management Strategy
Minimise possibility of gases andor pressure build up in the system during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
HP heaters Remove loop pipes from heaters
Open body drains and vents
Check for gases in hp heater space prior to demolition
Boiler dosing pprsquos Drain oil from pprsquos
523 Boiler Feed Pumps (BFP)
Asset Management Strategy
Minimise any residual hazards remaining in the Boiler Feed pumps
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 9 -
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Boiler feed pumps - Mather amp Platt Drain bearing oil reservoirs
Boiler feed pumps - Sulzer Drain bearing oil reservoirs
Feed pump headers ndash suction and discharge Open all drains and vents and sectionalising valves
Check for gases in all feed water header spaces prior to demolition
Steam driven feed pp Drain oil from bearings
524 Draught Plant
Asset Management Strategy
Minimise any residual hazards remaining in the Draught Plant
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
FD Fans Drain oil from FD fan bearings on Blr 12 amp 3 Note 45 amp 6 have greased bearings
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 10 -
53 Station Auxiliaries
531 Electrical
5311 DC Systems
Asset Management Strategy
Minimise the risk of DC ndash LeadAcid hazards to demolition crew
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
DC batteries A Station 110 volt Remove all LeadAcid batteries
DC batteries B Station 110 volt Remove all LeadAcid batteries
DC batteries B Station UPS Remove all LeadAcid batteries
Diesel generator 24 volt batteries two banks Remove all LeadAcid batteries
Diesel 24 volt Emergency Start Relay batteries Remove all LeadAcid batteries
Diesel Fire Pump Batteries Remove all LeadAcid batteries
DC batteries Station Fire System Remove all LeadAcid batteries
Terminal Room Remove all LeadAcid batteries
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 11 -
Decommission and remove all 132kV line protection devices Electranet
Diesel generator Drain oil and coolant
5312 Switchboards ndash 33kV amp 415V
Asset Management Strategy
To remove any kinetic energy stored in the 33kV switchgear and to supply an alternative power supply for limited emergency lighting and dewatering
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
33kV Breakers Discharge all spring loaded devices This will be done by operators when isolating the station PMA
5313 Power Transformers
Asset Management Strategy
Apply a perimeter isolation to the 275132kV AampB station switchyards to Eliminate risk of Electric Shock by disconnecting all HV supplies at major terminal points in A amp B station switchyards Eliminate the possibility of a transformer oil spill to the surrounding environment
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 12 -
275 kV step up tfrsquos Disconnect step up transformer B1 at 275kV droppers Comp
Disconnect step up transformer B2 at 275kV droppers Comp
Disconnect step up transformer B3 at 275kV droppers Comp
Disconnect step up transformer at B4 275kV droppers Comp
275kV Nth tie transformer disconnect from 275kV droppers
132kV System Disconnect points at isolators of AS2 AS4 amp disconnect cables at 11kV tertiary terminals at Nth tie transformer De-energised
33 kV to 415 volt transformers Drain all transformers and dispose of transformer oil
275 kV step up tfrsquos Drain all transformers and dispose of transformer oil
13211kV transformers
Drain transformers in A Stn switchyard (2 x 13211kV and old spare near canteen)
5314 DCSControl SystemsAlarms
Asset Management Strategy
Minimise the risk of residual power sources
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Processors Low voltage batteries to be removed
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 13 -
DC inverter batteries Remove batteries
5315 Actuators
Asset Management Strategy
Minimise risk of oil spill to environment during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Drain actuators of oil
5316 BH1 amp Compressor Equipment
Asset Management Strategy
Minimise any pressure hazards in the compressor system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
BH1 Compressor Shutdown compressor and drain Air recievers
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 14 -
Breaker Unplug from breaker housing
5317 11Kv Ring Main Equipment
Asset Management Strategy
Remove environmental contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Stator 11kV switchgear Drain oil
11kV transformers Drain oil
5318 Lifts amp Cranes
Asset Management Strategy
Decommission and de-register lifts and cranes in preparation for demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
B stn Nth and Sth lifts Deregistration
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 15 -
Degas air conditioners
Drain gearbox oil
Drain gearbox oil
PPS Cranes Drain oil from gearboxes
De-register cranes
5319 Public Address System
Asset Management Strategy
Isolate from NPS system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
PA system Disconnect PA system
53110 BE09BE10 33kV Switchgear
Asset Management Strategy
Remove environmental contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 16 -
Plant Description Proposed Actions Responsibility
Stator 33kV switchgear Drain oil
33kV transformers Drain oil
53111 132Kv System
Asset Management Strategy
To remove the DC power supplies to the 132kV protection equipment located in the A stn terminal room
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
132kV protection equipment Relocated by Electranet to a suitable location Electranet
132kV System Disconnect points at isolators of AS2 AS4 amp disconnect cables at 11kV tertiary terminals at Nth tie transformer
532 Coal Systems
5321 Coal Feeders
Asset Management Strategy
To minimise environmental hazards
Controls
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 17 -
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Feeder gearbox Drain gearbox oil
5322 Coal Conveyors
Asset Management Strategy
Remove environmental contaminants and kinetic energy from the coal system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Conveyors Drain gearbox oils (Note detailed risk assessment for access required due to condition of towers)
Wash down all conveyors
Release take up assemblies
Trippers Drain gearbox oils (Note detailed risk assessment for Bin access required due to condition of towers)
Ploughs Drain gearbox oils
Towers Wash down all towers
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 18 -
5323 Bins amp Bunkers
Asset Management Strategy
Minimise environmental hazards Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Bins Wash out bins
533 Fuel Oil
Asset Management Strategy
Remove environmental contaminants from Fuel oil system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Oil guns Remove and drain oil guns
FO Pipework Drain FO pipework ndash pump degreaser through system
FO transfer pprsquos Drain strainers
FO storage See NPS Closure Manual
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 19 -
534 Ash Systems
5341 Ash pumps amp pit
Asset Management Strategy
Maintain dewatering in B stn basement during salvagedemolition activities via an alternative power supply
Controls The following Controls have been identified to maintain site de-watering during SalvageDemolition operation
Plant Description Proposed Actions Responsibility
Alternative power supply
Install temporary generator for ash pumpde-watering pumps and emergency lighting
Ash pump Alternative power supply andor pump required after site power system shut down
5342 HP amp LP Sluice pumps
Asset Management Strategy
Remove environmental contaminants from sluice pumps
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
HP sluice pumps Drain oil from bearing reservoirs
LP sluice pumps Drain oil from bearing reservoirs
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 20 -
5343 Ash Hoppers
Asset Management Strategy
Remove environmental contaminants from hoppers
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Screw conveyors Drain gearbox oils
5344 Deashers
Asset Management Strategy
Remove environmental contaminants from Deashers
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Deashers Drain gearbox oils
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 21 -
535 Compressed Air
Asset Management Strategy
Shut down assets and depressurise the system and remove environmental contanimants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
No 1 amp 2 Compressors Drain oil from air ends and separators
Sth and SW compressors Drain oil from air ends and separators
Air receivers De-pressurise and Open drainvent valves on GS air receivers
De-pressurise and Open drainvent valves on Blr FF air receivers and pulse tanks
De-pressurise and Open drainvent valves on TG air receivers
536 CW Systems
5361 CW Pumps
Asset Management Strategy
Remove environmental contaminants from CW pumps
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 22 -
Plant Description Proposed Actions Responsibility
CW pumps Drain oil from bearings
5362 CW Chambers
Asset Management Strategy
Isolate the gulf waters from the basement
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Chamber
Controls to manage isolation between gulf and basement to be developed Currently spades inserted on CW pump outlets
5363 CW Screens
Asset Management Strategy
Remove environmental contaminants from CW screens
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
CW Screens Drain gearbox and fluid drive oils
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 23 -
537 Water Treatment Plant
Asset Management Strategy
Remove any remaining residual contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Anion tanks Remove and dispose of resin
Mixed bed vessels Remove and dispose of resin
Cation tanks Remove and dispose of resin
Sand filters Remove and dispose of sand
Carbon filters Remove and dispose of Anthracite
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 24 -
538 Town Water and Drains Asset Management Strategy To maintain basement de-watering during salvagedemolition operation
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Sump pumps Install temporary generator for sump pumps
De-watering pump Install temporary generator for de-watering pump
Contaminated drain tank
Pump out Contaminated drain tank after all oils drained from station
Black water system
Disconnect connection from NPS feedline from A stn sewerage tank and Workshopstores sewerage tank Pump out existing tanks in preparation for demolition
Town Water storage tanks Drain water tank
TW supply Isolate TW supply from NPS and SA Water
Hot Water services Drain Workshop and office HWSrsquos
539 Fire Protection system
Asset Management Strategy
Decommission fire protection system and remove environmental contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 25 -
Plant Description Proposed Actions Responsibility
Fire system Advise FM Global of change in status from insured to uninsured facility
Diesel Fire Pumps See NPS Closure Manual `Infrastructure of Interestrsquo
Water storage tank Drain water tank
FM500 system Decommission and remove cylinder
Accumulator Decommission Accumulator at Fire Diesels
33kV room compressor Drain oil from compressor
Fire extinguishers Remove all fire extinguishers
5310 Workshops and Offices
Asset Management Strategy
Minimise any hazards that may impact on demolition crews
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Item Proposed Actions Responsibility
PPS Fitting Shop
Decommission all Electrical supplies air-conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including asbestos removalmanagement sewage system decommissioning and site rehabilitation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 26 -
PPS Boiler Shop and Spares Store
Decommission all Electrical supplies air-conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including asbestos removalmanagement sewage system decommissioning and site rehabilitation
PPS Electrical Shop
Decommission all Electrical supplies air-conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including asbestos removalmanagement sewage system decommissioning and site rehabilitation
Kaefers Workshop
Decommission all Electrical supplies air conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including sewage system decommissioning and site rehabilitation
Grit Blasters Facility
Decommission all Electrical supplies town water systems to facility
Inventory and remove all plant tools and equipment for disposal
Offices Decommission Air Conditioners
Salvage and dispose of furniture and fittings
Remove paperwork required to be kept to comply with Statutory obligations
Equipment rooms Decommission Air conditioners
6 Appendix
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 27 -
61 Legal and other Requirements
611 Legislation and Licences
Management Strategy
Comply with all Legislation and Lease agreements during the Closureremediation process
Item Document Responsibility
1 NorthernPlayford Generating Plant Lease
2 NorthernPlayford Land Lease
3 Environmental Compliance Agreement
4 SA Generation Licence
5 EPA Licences
6 AEMO Certification
7 Pressure Vessel Registrations
8 Lifts Registrations
9 WHS Act amp Regulations
10 Code of Practice ndash Demolition Work
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 28 -
612 Alinta Policies
Item Policy Responsibility
1 Compliance Guideline HSSE-019 Demolition and Decommissioning
613 References
Item Documents Responsibility
1 Care to Closure Risk Assessment
2 NPS Care to Closure Plan
3 PPS Hibernation Manual
4 Inspection amp Audit Sheet
62 Project Plan
63 PPS Administration
631 PPS Registered Plant
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 29 -
Management Strategy
To De-commission and de-register registered Plant
Controls
Item Proposed Actions Responsibility
1 Advise Safework SA in writing of pressure vessels that have been decommissioned
2 Advise Safework SA in writing of Lifts that have been decommissioned
632 PPS Isolations
Management Strategy
To wind back plant and system isolations to Perimeter disconnections
Controls
Item Proposed Actions Responsibility
Existing isolations Clear isolations and remove isolation tags from plant
633 Closure Audit
Management Strategy
To provide an Auditable record of controls put in place to render the site as safe as reasonably practical for salvagedemolition
Controls
Item Proposed Actions Responsibility
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 30 -
7
1 Raise work orders for each control action
2 Complete Inspection amp Audit sheets as each system is made safe
PPS Residual Risks
Management Strategy
To highlight to the salvagedemolition third parties any Residual risks remaining that are beyond the Alinta Energy Closure workscope
Item Residual Risks Responsibility
Boiler insulation Contains Asbestos
WorkshopAdmin building materials Contains asbestos
Basement flooding Seawater seepage into basement
Tunnels Cable tunnels exist between Turbine halls and switchyards
Bag Filters
Bags may still be impregnated with ash potential dust problem on demolition Residual Ash may be present in hoppers
PPS Seawall
Vehicle access to sea side of B Station has been closed due to condemned seawall pillings Will present problems to make safe works in this area
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 31 -
Appendix D
everyone every day every jab Zero Harm
0
i t------------t i t--------t
i
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
5 51
52
53
54
55
System
TurbineBoiler Unit Turbine
Turbine oil systems
Condenser condensate side
Condenser seawater side
Turbine valves
Generator Barring gear
Hydrogen system
CW system CW Pumps
CW Ducts
Feedwater system LP Feedwater
Condensate Polishing Plant
Blr Feed Pumps
HP heaters
Feed make up system
Boiler
Task Name
Ensure all SWMS amp Risk assessments are reviewed and All Personnel signed onto Isolation permits prior to commencing work
NPS Care Closure NPS Unit 1 Care - Project No
TurbineBoiler Unit Turbine
Turbine off
Turbine oil systems
Lube oil system to remain operational
Seal oil system to remain operational
Condenser condensate side
Isolation
Open doors
Condenser seawater side
Drain seawater side of condenser
Turbine valves Isolation
Unit Care - Turbine complete
Generator Barring gear
Run on Barring gear to prevent rotors sagging
Hydrogen system Decommision hydrogen system and purge generator
Unit Care - Generator complete
CW system CW Pumps
Isolation
CW Ducts Ducts to be maintained empty and dry per culvert dewatering system
Unit Care - CW System complete
Feedwater system LP Feedwater
Isolation - CEPs
LP htrs GS Condenser and LP Ejector Drain and store dry
Deaerator and DAFT Drain and store dry
Condensate Polishing Plant
Open vessels
Gas Clearance
Remove resins
Blr Feed Pumps Isolate and drain Feed pumps
HP heaters Isolation
Drain and store dry
Feed make up system
Isolation
Drain Make up tanks
Unit Care - Feedwater System complete
Boiler Boiler off
Duration
0 hrs
24038 hrs
1705 hrs
1705 hrs 725 hrs 1 hr
0 hrs
0 hrs
0 hrs
55 hrs
8 hrs
1 hr
275 hrs
4 hrs
0 hrs 3 hrs
0 hrs
3752 hrs 3752 hrs 120 hrs
1 hr 8 hrs
0 hrs
0 hrs 0 hrs 1 hr
0 hrs 8 hrs
0 hrs
33 hrs 5 hrs 1 hr
8 hrs
8 hrs
27 hrs
2 hrs
1 hr
24 hrs
625 hrs 8 hrs
7 hrs 6 hrs
8 hrs
6 hrs
2 hrs
8 hrs
0 hrs
5332 hrs 2 hrs
Page 1 of 12
39
40
41
42
43
44
45
46
47
48
49
50
a1middotn a s~FE everyone every day every jab Zero Harm
0 I I I
~ ~ i i i
~ ~ i i i
bfl - r r r - l l l
~ ~ i
i i ~ i
~ i
i
~ i i i
-
I I I
i L L L i i
I I I
- -- L L L i -
i -
i -
-
-
i -
i -
i -
i I I I
- L ~
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
56
59
System
Pressure parts Storage
Furnace and Gas path
Draught Plant Air heaters
ID Fans
GR Fan
PA fan
SA fan
Ducts and dampers
ACW System Seawater side
Task Name
Pressure parts Storage
Control cool and drain boiler (in accordance with drainage schedule) Item 8
Isolation
Open boiler doors
Boiler gas clearances
Initiate sprays (pre wash) in Eco 1 amp 2
Furnace and Gas path
Sootblow 8 hrs prior to shutdown
Keep deasher in service for duration of wash
Remove Economiser e-valves
Gas Clearances
Furnace and economiser wash
External Wash down structure
Unit Care - Boiler complete
Draught Plant Air heaters
Shut down once core temp lt 100 degrees
Isolation
Remove dump vvs amp e-vvs
Deluge wash
Open doors
Gas Clearance
Manual internal wash
ID Fans Shut down amp Isolate once unit gas path is dry after precip wash - 48
Open doors
Gas Clearance
Washvocuum windboxes
GR Fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
PA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
SA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
Ducts and dampers
Isolation
Open doors
Gas clearances
WashVacuum GR outlet and precipitator outlet duct
Inspect all ducts and vacuum as required
Unit Care - Draught Plant complete
ACW System Seawater side
Duration
1932 hrs
8 hrs
4 hrs
682 hrs
2 hrs
6 hrs
5332 hrs
6 hrs
0 hrs
4 hrs
1 hr
24 hrs
275 hrs 8 hrs
0 hrs
1695 hrs 4798 hrs 2 hrs
2 hrs
4 hrs
2 hrs
4 hrs
1 hr
16 hrs
165 hrs 4 hrs
4 hrs
1 hr
8 hrs
105 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
1695 hrs
2 hrs
4 hrs
2 hrs
80 hrs
80 hrs
0 hrs
0 hrs 0 hrs 2 hrs Isolate amp drain and dry store (Unit)
Page 2 of 12
93
94
95
96
97
98
99
100
101
102
103
104
everyone every day every jab Zero Harm
0
~ ~ i ~ ~ i i ~ ~ i i ~ i 6tJ i i i ~ i ~ i i i ~ ~ i i i ~ ~ i i
i I-----
i 1------1
I----- i
i 1------1 i
~ i I-----
i I-----
i 1------lii i
i
- l
L
- L
l l
L L
L L
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual System Task Name Index No
Unit Care - ACW System complete
510 Coal System Coal System Bins amp Bunkers Bunkers
Run down bunker levels
Isolate Mill Feeders
Fit bunker emptying chute to EN Feeder chute
Empty EN bunker
Wash EN Bunker
Remove bunker emptying chute from EN
Fit bunker emptying chute to WN Feeder chute
Empty WN bunker
Wash WN Bunker
Remove bunker emptying chute from WN
Fit bunker emptying chute to EC Feeder chute
Empty EC bunker
Wash EC Bunker
Remove bunker emptying chute from EC
Fit bunker emptying chute to WC Feeder chute
Empty WC bunker
Wash WC Bunker
Remove bunker emptying chute from WC
Fit bunker emptying chute to ES Feeder chute
Empty ES bunker
Wash ES Bunker
Remove bunker emptying chute from ES
Fit bunker emptying chute to WS Feeder chute
Empty WS bunker
Wash WS Bunker
Remove bunker emptying chute from WS
Coal feeders Coal feeders Open EN Feeder
Gas clearance
Vac and wash out
Open WN Feeder vac and wash out
Gas clearance
Vac and wash out
Open EC Feeder vac and wash out
Gas clearance
Vac and wash out
Open WC Feeder vac and wash out
Gas clearance
Vac and wash out
Open ES Feeder
Gas clearance
Vac and wash out
Open WS Feeder
Gas clearance
Vac and wash out
Mills Mills Open EN Mill
Gas clearance
Wash out EN Mill - leave open to dry out
Open WN Mill
Gas clearance
Wash out WN Mill - leave open to dry out
Open EC Mill
Duration
0 hrs
7347 hrs 5487 hrs 4 hrs
8 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
4827 hrs 1 hr
1 hr
465 hrs
4 hrs
1 hr
4 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
74 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
832 hrs
5655 hrs 1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
Page 3 of 12
148
149
150
151
152
153
154
155
156
157
158
159
160
everyone every day every jab Zero Harm
0 i
1-------1~
1-------1 i
~ i 1-------1
i 1-------1
~ i 1-------1 i
1-------1~
i 1-------1
l-------16tl
1-------1~
i 1-------1
i 1-------1
1-------1~
i 1-------1
1-------1~
i 1-------1
i 1-------1 i 1-------1~
1-------1~
1-------1 ~ i
1-------1~
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
511
512
6 62
5 51
System
Fuel Oil FO pumps
Storage tanks
Ash system Hoppers
Precips
Deasher
Ash pitpumps
Electrical Systems Instrumentation
TurbineBoiler Unit Turbine
Turbine oil systems
Task Name
Gas clearance
Wash out EC Mill - leave open to dry out
Open WC Mill
Gas clearance
Wash out WC Mill - leave open to dry out
Open ES Mill
Gas clearance
Wash out ES Mill - leave open to dry out
Open WS Mill
Gas clearance
Wash out WS Mill - leave open to dry out
Release roller spring tension
Unit Care - Coal System complete
Fuel Oil FO pumps
Shut oil pumps down when unit OOS
Isolate fuel oil system
Clean filters and system
Drain FO system
Storage tanks Run down storage level (burn sell if possible)
Isolate
Unit Care - Fuel Oil complete
Ash system Hoppers
Run local manual dump
Open hopper doors
Precips Isolate
Remove Precip e-valves
Gas clearance
Full wash of internals - washing manifold
Store with air doors open for natural air circulation
Deasher Isolation
Gas clearance
Full wash of all internals store dry
Ash pitpumps Flush and pump down pit - leave available
Unit Care - Ash System complete
Electrical Systems Instrumentation
Build scaffold for furnace camera removal
Remove furnace camera
Dismantle scaffold after furnace camera removal
Unit Care - Electrical Systems complete
Unit 1 Care Complete
NPS Unit 2 Care - Project No TurbineBoiler Unit
Turbine Turbine off
Turbine oil systems
Lube oil system to remain operational
Seal oil system to remain operational
Duration
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
6 hrs
0 hrs
345 hrs 335 hrs 1 hr
1 hr
8 hrs
24 hrs
0 hrs 0 hrs
1 hr
0 hrs
629 hrs 629 hrs 8 hrs
3 hrs
525 hrs 4 hrs
24 hrs
1 hr
24 hrs
0 hrs
417 hrs 2 hrs
1 hr
2 hrs
0 hrs 0 hrs
0 hrs
14 hrs 14 hrs 4 hrs
8 hrs
2 hrs
0 hrs
0 hrs
18598 hrs
18598 hrs 2238 hrs 1 hr
0 hrs
0 hrs
0 hrs
Page 4 of 12
204
205
206
207
208
209
210
211
212
213
214
a1middotn a s~FE everyone every day every jab Zero Harm
0 I I I
~ i
~
~ - r r r - l l l
~
~ I I I
- l L l ~
~ I I I
- L L L ~ ~ ~
i i i
~
lii Iii
Iii ~ -
I I I
-
Iii L L L -
lil ~ i i i
lil 6tl i i i
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
52
53
54
55
System
Condenser condensate side
Condenser seawater side
Turbine valves
Generator Barring gear
Hydrogen system
CW system CW Pumps
CW Ducts
Feedwater system LP Feedwater
Condensate Polishing Plant
Blr Feed Pumps
HP heaters
Feed make up system
Boiler
Pressure parts Storage
Furnace and Gas path
Task Name
Condenser condensate side
Isolation
Open doors
Condenser seawater side
Drain seawater side of condenser
Turbine valves Isolation
Unit Care - Turbine complete
Generator Barring gear
Run on Barring gear to prevent rotors sagging
Hydrogen system Decommision hydrogen system and purge generator
Unit Care - Generator complete
CW system CW Pumps
Isolation
CW Ducts Ducts to be maintained empty and dry per culvert dewatering system
Unit Care - CW System complete
Feedwater system LP Feedwater
Isolation - CEPs
LP htrs GS Condenser and LP Ejector Drain and store dry
Deaerator and DAFT Drain and store dry
Condensate Polishing Plant
Open vessels
Gas Clearance
Remove resins
Blr Feed Pumps Isolate and drain Feed pumps
HP heaters Isolation
Drain and store dry
Feed make up system
Isolation
Drain Make up tanks
Unit Care - Feedwater System complete
Boiler Boiler off
Pressure parts Storage
Control cool and drain boiler (in accordance with drainage schedule) Item 8
Isolation
Open boiler doors
Boiler gas clearances
Initiate sprays (pre wash) in Eco 1 amp 2
Furnace and Gas path
Sootblow 8 hrs prior to shutdown
Keep deasher in service for duration of wash
Remove Economiser e-valves
Gas Clearances
Furnace and economiser wash
Duration
617 hrs
8 hrs
1 hr
24 hrs
4 hrs
0 hrs 3 hrs
0 hrs
227 hrs 227 hrs 120 hrs
2 hrs 8 hrs
0 hrs
0 hrs 0 hrs 1 hr
0 hrs 8 hrs
0 hrs
33 hrs 617 hrs 1 hr
8 hrs
8 hrs
27 hrs
2 hrs
1 hr
24 hrs
557 hrs 8 hrs
757 hrs 6 hrs
8 hrs
717 hrs
2 hrs
8 hrs
0 hrs
543 hrs 2 hrs
203 hrs
8 hrs
4 hrs
713 hrs
2 hrs
6 hrs
543 hrs
6 hrs
0 hrs
4 hrs
1 hr
24 hrs
Page 5 of 12
255
256
257
258
259
260
261
262
263
264
265
266
a1middotn a s~FE everyone every day every jab Zero Harm
0
~ i - r r r - L L L
~ ~ i
i i ~
6 i
i
~ i i i
i i i
i i i
i i --
i i
~ -
- L L L ~ ~ i ~ i ~ i i i ~ i Iii i i
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
56
59
Isolate amp drain and dry store (Unit)
510
System
Draught Plant Air heaters
ID Fans
GR Fan
PA fan
SA fan
Ducts and dampers
ACW System Seawater side
Coal System Bins amp Bunkers
Task Name
External Wash down structure
Unit Care - Boiler complete
Draught Plant Air heaters
Shut down once core temp lt 100 degrees
Isolation
Remove dump vvs amp e-vvs
Deluge wash
Open doors
Gas Clearance
Manual internal wash
ID Fans Shut down amp Isolate once unit gas path is dry after precip wash - 48
Open doors
Gas Clearance
Washvocuum windboxes
GR Fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
PA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
SA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
Ducts and dampers
Isolation
Open doors
Gas clearances
WashVacuum GR outlet and precipitator outlet duct
Inspect all ducts and vacuum as required
Unit Care - Draught Plant complete
ACW System Seawater side
Unit Care - ACW System complete
Coal System Bunkers
Run down bunker levels
Isolate Mill Feeders
Fit bunker emptying chute to EN Feeder chute
Empty EN bunker
Wash EN Bunker
Remove bunker emptying chute from EN
Fit bunker emptying chute to WN Feeder chute
Empty WN bunker
Wash WN Bunker
Remove bunker emptying chute from WN
Duration
24 hrs 8 hrs
0 hrs
16917 hrs 4748 hrs 2 hrs
2 hrs
4 hrs
2 hrs
4 hrs
1 hr
16 hrs
13 hrs 4 hrs
4 hrs
1 hr
8 hrs
1067 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
16917 hrs
2 hrs
4 hrs
2 hrs
80 hrs
80 hrs
0 hrs
0 hrs 0 hrs 2 hrs
0 hrs
7347 hrs 5865 hrs 4 hrs
8 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
Page 6 of 12
309
310
311
312
313
314
315
316
317
318
319
320
321
a1middotn a s~FE everyone every day every jab Zero Harm
0 I I I i ~ ~ i i ~ ~ i i i ~ i ~ i i i 6 i ~ i
i i
i i
i
i - -- r r r i ~ L L L i i ~ I I I
i - - L L L
~ i i
~ i i
~ i
~ i
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual System Task Name Index No
Fit bunker emptying chute to EC Feeder chute
Empty EC bunker
Wash EC Bunker
Remove bunker emptying chute from EC
Fit bunker emptying chute to WC Feeder chute
Empty WC bunker
Wash WC Bunker
Remove bunker emptying chute from WC
Fit bunker emptying chute to ES Feeder chute
Empty ES bunker
Wash ES Bunker
Remove bunker emptying chute from ES
Fit bunker emptying chute to WS Feeder chute
Empty WS bunker
Wash WS Bunker
Remove bunker emptying chute from WS
Coal feeders Coal feeders Open EN Feeder
Gas clearance
Vac and wash out
Open WN Feeder vac and wash out
Gas clearance
Vac and wash out
Open EC Feeder vac and wash out
Gas clearance
Vac and wash out
Open WC Feeder vac and wash out
Gas clearance
Vac and wash out
Open ES Feeder
Gas clearance
Vac and wash out
Open WS Feeder
Gas clearance
Vac and wash out
Mills Mills Open EN Mill
Gas clearance
Wash out EN Mill - leave open to dry out
Open WN Mill
Gas clearance
Wash out WN Mill - leave open to dry out
Open EC Mill
Gas clearance
Wash out EC Mill - leave open to dry out
Open WC Mill
Gas clearance
Wash out WC Mill - leave open to dry out
Open ES Mill
ltNew Taskgt
Wash out ES Mill - leave open to dry out
Open WS Mill
Gas clearance
Wash out WS Mill - leave open to dry out
Release roller spring tension
Unit Care - Coal System complete
Duration
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
509 hrs 1 hr
1 hr
465 hrs
4 hrs
1 hr
4 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
75 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
832 hrs
554 hrs 1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
8 hrs
8 hrs
1 hr
1 hr
8 hrs
6 hrs
0 hrs
Page 7 of 12
365
366
367
368
369
370
371
372
373
374
375
376
377
everyone every day every jab Zero Harm
0
~ gt------------lt~
i I-----
i t-------t
I-----~
I-----~
I-----~
i t-------t
6tJ I----- i
i t-------t
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gt------------lt~
I-----~
gt------------lt~
t-------t i
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NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
System Task Name Duration
378 511 Fuel Oil Fuel Oil 5048 hrs 379 FO pumps FO pumps 3367 hrs 380 Shut oil pumps down when unit OOS 1 hr
381 Isolate fuel oil system 1 hr
382 Clean filters and system 8 hrs
383 Drain FO system 24 hrs
384 Storage tanks Storage tanks 0 hrs 385 Run down storage level (burn sell if possible) 0 hrs
386 Isolate 1 hr
387 Unit Care - Fuel Oil complete 0 hrs
388 512 Ash system Ash system 7803 hrs 389 Hoppers Hoppers 6322 hrs 390 Run local manual dump 8 hrs
391 Open hopper doors 3 hrs
392 Precips Precips 5217 hrs 393 Isolate 4 hrs
394 Remove Precip e-valves 24 hrs
395 Gas clearance 1 hr
396 Full wash of internals - washing manifold 24 hrs
397 Store with air doors open for natural air circulation 0 hrs
398 Deasher Deasher 417 hrs 399 Isolation 2 hrs
400 Gas clearance 1 hr
401 Full wash of all internals store dry 2 hrs
402 Ash pitpumps Ash pitpumps 0 hrs 403 Flush and pump down pit - leave available 0 hrs
404 Unit Care - Ash System complete 0 hrs
405 6 Electrical Systems Electrical Systems 14 hrs 406 62 Instrumentation Instrumentation 14 hrs 407 Build scaffold for furnace camera removal 4 hrs
408 Remove furnace camera 8 hrs
409 Dismantle scaffold after furnace camera removal 2 hrs
410 Unit Care - Electrical Systems complete 0 hrs
411 Unit 1 Care Complete 0 hrs
412 NPS Station Care - Project No 101 hrs
413 5 TurbineBoiler Unit TurbineBoiler Unit 101 hrs 414 510 Coal System Coal System 101 hrs 415 Train unloading Train unloading 3 hrs 416 Isolate unloader 1 hr
417 Washvaccuum train unloader 2 hrs
418 Bins Bins 64 hrs 419 Wash out coal bins 64 hrs
420 Conveyors Conveyors 100 hrs 421 Isolate conveyors 4 hrs
422 Wash down conveyors 32 hrs
423 Coal Towers Coal Towers 32 hrs 424 Wash down coal towers 32 hrs
425 Station Care - Coal System complete 0 hrs
426 511 Fuel Oil Fuel Oil 585 hrs 427 FO pumps FO pumps 585 hrs 428 Isolate fuel oil unloading delivery pumps 2 hrs
429 Drain fuel oil pipework 24 hrs
430 FO Storage tanks FO Storage tanks 32 hrs 431 Drain fuel oil storage tanks and vaccuum out any residue 32 hrs
432 FO Storage - PPS FO Storage - PPS 10 hrs 433 Run stocks to minimum levels 0 hrs
Page 8 of 12
everyone every day every jab Zero Harm
0
t------t i
t------t i
f--------l i
i t------t
i t------t
i f--------l i
f--------l i
i f--------l i
i f--------l
i t------t
i f--------l i
t------t i
t------t i
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
7 71
5 51
53
54
System
FO Storage - service tank
Stn Aux Aux Blr
TurbineBoiler Unit Turbine Turbine Oil Systems
CEPs
Turbine valves
CW system Chambers
CW Pumps
CW Dosing
Feedwater system
Task Name
Clean out remaining oil
FO Storage - service tank
Run stocks to minimum levels
Clean out remaining oil
Station Care - Fuel Oil complete
Stn Aux Aux Blr
Isolation
Drain and dry store Aux Blr
DACP Disconnect discharge pipework
Remove collection vessel filter bags
Wash collection vessels
NPS Station Care Complete
NPS Closure - Project No TurbineBoiler Unit
Turbine Turbine Oil Systems
Isolation
Drain main oil tank and pipework
Drain seal oil defoaming tank and pipework
Drain seal oil drain regulator tanks
Drain Loop seal tanks
Isolate electrical supplies to pumps
CEPs Drain oil from CEP and motor
Turbine valves Isolate power supplies
Drain actuators and pipework
Drain control stations and acumulators
NPS Closure - Turbine complete
CW system Chambers
Stop log sealing faces to be cleaned divers required
Install stop logs
CW chamber drained
dewatering pump installed
Remove CW pump
Fit blanks
Remove Dewatering pp
Remove stop logs
CW Pumps Drain oil from pump bearings
Ferrous Chloride dosing
Drain and flush tank amp pipe work to condenser
Isolation
Chlorination Plant Flush acid pipe work with sea water
Isolation
Drain acid tank
Wash out acid tank
NPS Closure - CW System complete
Feedwater system
Duration
8 hrs
10 hrs
0 hrs
8 hrs
0 hrs
715 hrs 10 hrs 2 hrs
8 hrs
18 hrs 2 hrs
8 hrs
8 hrs
0 hrs
24038 hrs
24038 hrs 168 hrs 168 hrs
4 hrs
64 hrs
32 hrs
32 hrs
32 hrs
4 hrs
32 hrs 32 hrs
98 hrs 2 hrs
48 hrs
48 hrs
0 hrs
24038 hrs 218 hrs 32 hrs
32 hrs
16 hrs
2 hrs
80 hrs
32 hrs
8 hrs
16 hrs
8 hrs 8 hrs
17 hrs
16 hrs
1 hr
5 hrs 1 hr
2 hrs
1 hr
1 hr
0 hrs
35 hrs
Page 9 of 12
475
476
477
478
479
480
481
482
483
484
485
486
everyone every day every jab Zero Harm
0
t------t i
t------t i
t------t i
t-------t i
t------t i
t------t i
t-------t i
t------t i
t-------t i
t------t i
t-------t i
t-------t i
t------t i
i
t------t i
t------t i
i t-------t i
t------t i
t------t i
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
System Task Name Duration
487 Res Feed Water Tanks Res Feed Water Tanks 2 hrs
488 Drain RFW tanks 2 hrs
489 LP Feedheaters LP Feedheaters 8 hrs 490 Open drains and doors 8 hrs
491 GS condenser GS condenser 8 hrs 492 Open drains and doors 8 hrs
493 LP ejector LP ejector 8 hrs 494 Open drains and doors 8 hrs
495 Boiler feed Pumps Boiler feed Pumps 32 hrs 496 Remove oil from BFP and GTD 32 hrs
497 HP 6 amp 7 HP 6 amp 7 4 hrs 498 Open drains 4 hrs
499 Ammonia dosing pp Ammonia dosing pp 4 hrs
500 Drain oil from bearings 4 hrs
501 55 Boiler Boiler 8 hrs 502 Pressure parts Pressure parts 8 hrs 503 Open all drains and vents 8 hrs
504 Safety valves Safety valves 8 hrs 505 Relieve safety valve spring tensions 8 hrs
506 Blowdown vessels Blowdown vessels 8 hrs 507 Open all drains and vents 8 hrs
508 56 Draught Plant Draught Plant 16 hrs 509 Air Heaters Air Heaters 16 hrs 510 Drain oil from bearings and gearboxes 16 hrs
511 ID fans ID fans 16 hrs 512 Drain oil from bearings and oil tanks 16 hrs
513 GR Fan GR Fan 8 hrs 514 Drain oil from bearings and oil tanks 8 hrs
515 PA fan PA fan 8 hrs 516 Drain oil from bearings and oil tanks 8 hrs
517 SA SA 8 hrs 518 Drain oil from bearings and oil tanks 8 hrs
519 57 Valves Valves 40 hrs 520 Station safety vvs Station safety vvs 40 hrs 521 Relieve spring tensions 40 hrs
522 510 Coal System Coal System 125 hrs 523 Ploughs Ploughs 8 hrs 524 Drain gearbox oils 8 hrs
525 Trippers Trippers 8 hrs 526 Drain gearbox oils 8 hrs
527 Conveyors Conveyors 24 hrs 528 Drain oil from gearboxes 24 hrs
529 Coal feeders Coal feeders 36 hrs 530 Drain oil from gearboxes 36 hrs
531 Mills Mills 96 hrs 532 Drain oil from gearboxes 96 hrs
533 Drain oil from Rollers 48 hrs
534 512 Ash system Ash system 8 hrs 535 Deasher Deasher 8 hrs 536 Drain oil from hydraulic units 8 hrs
537 Crusher Crusher 4 hrs 538 Drain oil from crusher drive 4 hrs
539 Ash pitpumps Ash pitpumps 4 hrs 540 Isolate amp install submersible pp (discuss with contractor) 4 hrs
541 6 Electrical Systems Electrical Systems 24038 hrs
Page 10 of 12
everyone every day every jab Zero Harm
0
f------t i
f------t i
i f------t
i f------t i
i f------t
i f------t i
f------t i
i f------t
i f------t
f------t i
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
61
62
63
64
65
67
7 71
72
73
System
Control Systems FCS battery systems
Fire safety system
Instrumentation FCS stations
FCS inverter output
FCS inverter input
DC systems DC systems 220v
110v
24v
HV supply High Voltage supply
Switchboards 66
415V
Diesel Generators
Stn Aux Aux Blr
Compressed Air Compressors
Receivers
WTP RO Plant
Task Name
Control Systems FCS battery systems
Remove low voltage dc batteries
Fire safety system Decommission and remove DC battery inverter
Instrumentation FCS stations
Isolate AC supply to FCS stations
FCS inverter output
Isolate inverter supply to FCS stations
FCS inverter input Decommision inverter DC supplies
DC systems DC systems 220v
Decommission battery charger
Remove batteries
Wash down battery storage area
110v Decommission battery charger
Remove batteries
Wash down battery storage area
24v
Decommission battery charger
Remove batteries
Wash down battery storage area
HV supply High Voltage supply
Disconnect 275kV supply at Davenport - Electranet
Disconnect at the 18kV side of the transformer
Disconnect the 132kV line to the House transformer
Switchboards 66
Isolate 66 switchboards
discharge breaker spring
415V discharge breaker spring
Diesel Generators
Electrical disconnection
Mechanical Disconnection
Drain fuel tank
Electrical Systems complete
Stn Aux Aux Blr
Drain Auxillary blr fuel oil tank
Drain dosing chemicals
Compressed Air Compressors
Shut down and isolate compressors
Receivers Open up Air receivers
WTP RO Plant
Duration
6 hrs 6 hrs
6 hrs
2 hrs 2 hrs
3 hrs 2 hrs 2 hrs
3 hrs
3 hrs
1 hr 1 hr
24038 hrs 16 hrs 1 hr
16 hrs
2 hrs
12 hrs 1 hr
12 hrs
2 hrs
15 hrs 4 hrs
1 hr
8 hrs
2 hrs
48 hrs 48 hrs
0 hrs
24 hrs
24 hrs
24 hrs 24 hrs 2238 hrs
24 hrs
24 hrs 24 hrs
36 hrs 2 hrs
16 hrs
16 hrs
2 hrs
0 hrs
40 hrs 8 hrs 8 hrs
2 hrs
3 hrs 3 hrs 3 hrs
1 hr 1 hr
40 hrs 8 hrs
Isolate system
Isolate generators for removal
Page 11 of 12
583
584
585
586
587
588
589
590
591
592
593
594
595
everyone every day every jab Zero Harm
0 f------t
i
i f------t
i f------t
f------t i
f------t i
f------t i
f------t i
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID
635
636
Wg Manual Index No
74
Remove all portable fire extinguishers from site
8 81
83
84
System
WTP
Fire Protection Fire feedwater
Fire Deluge systems
Diesel Fire Pumps
Electric pmps
Fire detection DCPs
Halon systems
Vesda system
Fire extinguishers
Services Workshops Mills
Plant
ElectricalCoal line
Chem Lab
Admin
Document information and management
Pressure vessel de-registration
Security Appendix
Task Name
Decommission plant
WTP Drain all vessels
Dispose of resins and chemicals
Fire Protection Fire feedwater
Isolate from supply and drain system
Fire Deluge systems
Drain at pump discharge and each deluge station
Diesel Fire Pumps Drain fuel tank engine oil and coolant
Electric pumps Isolate motors
Fire detection DCPs
Isolate and remove lead acid batteries
Halon systems Decommission and Remove Halon cylinders
Vesda system remove batteries from Vesda units
Fire extinguishers
Services Workshops
Mills Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
Plant Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
ElectricalCoal line Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
Chem Lab Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
Admin ltNew Taskgt
Document information and management
Pressure vessel de-registration
Duration
8 hrs
40 hrs 40 hrs
40 hrs
8 hrs 4 hrs 4 hrs
8 hrs
8 hrs
8 hrs 8 hrs
2 hrs 2 hrs
8 hrs
8 hrs
8 hrs 8 hrs
4 hrs 4 hrs
8 hrs 8 hrs
40 hrs 40 hrs 8 hrs 2 hrs
8 hrs
8 hrs 2 hrs
8 hrs
8 hrs 2 hrs
8 hrs
40 hrs 40 hrs
24 hrs
8 hrs 8 hrs
8 hrs
8 hrs
8 hrs
8 hrs
85 9
Page 12 of 12
Appendix E
NPS Chemical plant that needs to be decommissioned
LPG ignition system decommissioning when Confirmation amp monitoring amount to contend with Removal dateComplete Target removal date
2 x 200kg cylinders owned by origin Disconnect cylinders and connect nitrogen bank of cylinders to purge pipework after units shutdown Cylinders removed - no monitoring required
1 and half cylinders
Arrange for shift to open aux boiler and each burner separately monitor pipework for explosive gases
Get origin to remove cylinders from site 21062016
Ammonia Dilution system
20 m3 tank and filling pipework
Use as much as possible in normal operation Remnants in tank while units still operating dilute with copious amounts of sea water and drain to contaminated drains Refill tank with demin water and drain to contaminated drains system amd the refill to above pump take off level Pump water through filling pipework to dosing tanks
in week before units shut down Empty tank and monitor for ammonia and pH
1 to 2 m3 25 to 5 NH3 21062016
2 x transfer pumps and transfer pipe to unit 1 unit 2 and boiler filling pump
When dilution tank decontaminated and filled with fresh water pump water through dosing pumps and lines for 20 minutes
in week before units shut down Empty tank and monitor for ammonia and pH
21062016
3 x 2000 litre dosing tanks and associated pumps and dosing lines
use as much during normal service and then drain with diltion water to the contaminated drains system Refill with fresh water and drain to contaminated drains Boiler dosing tank can be decommissioned in week before units come off
one at a time as units come off Empty tank and monitor for ammonia and pH
3 x 200litres 025 NH3 21062016
Hydrogen banks and pipework into station
8 banks of hydrogen BOC to remove after units off Cylinders removed - no monitoring required
21062016
stable flow controllers and hydrogen pipework purged when generator is purged with carbon dioxide after units off purged monitor for explosive gases 21062016
Water Treatment Plant including Reverse Osmosis plant 98 sulphuric acid
2 x bulk chemical storage tanks (max vol 36m3)
Use as much as possible during normal service Pump down from either drain or 1inch take off until level below man hole Take off man hole cover and pump out sulphuric acid until only remnants remain Open drain to bund and wash tank out to decontaminate and then release to effluent bulk tank with diluted sodium hydroxide remnants to neutralise the mixture before pumping to ash pit and ash pond
one before units come off and the other shortly afterwards
empty tank - monitor effluent for pH 3 to 4 m3 98 H2SO4 8062016
2 x measure vessels leave empty after last regeneration and then remove bottom flange and remove standpipe and flush with water
one before units come off and the other shortly afterwards
montor pH in drain 1 or 2 litres 98 H2SO4 8062016
pipework disconnect and flush with water one before units come off and the other shortly afterwards
Monitor pH in drain lt1 litre 98 H2SO4 8062016
2 x 20 sulphuric acid dilution tanks and pipework
run tank out during last regeneration and drain remnants to effluent system Disconnect pipework and flush with water
one before units come off and the other shortly afterwards
Monitor pH in drain 2 x 200litres 20 H2SO4 8062016
50 sodium hydroxide
2 x bulk chemical storage tanks (max vol 36m3)
Use as much as possible during normal service Pump down from either drain or 1inch take off until level below man hole Take off man hole cover and pump out sodium hydroxide until only remnants remain Open drain to bund and wash tank out to decontaminate and then release to effluent bulk tank with diluted sulphuric acid remnants to neutralise the mixture before pumping to ash pit and ash pond
one before units come off and the other shortly afterwards
empty tank - monitor effluent for pH 3 to 4 m3 50 NaOH 23062016
2 x measure vessels leave empty after last regeneration and then remove bottom flange and remove standpipe and flush with water
one before units come off and the other shortly afterwards
montor pH in drain 1 to 2 litres 50 NaOH 23062016
pipework disconnect and flush with water one before units come off and the other shortly afterwards
montor pH in drain lt 1 litre 50 NaOH 23062016
50 sulphuric acid IBC run out product in service or send back to ace chemicals also could put in acid dilution tank and use in regeneration of cation resin If only remnants drain to contaminated drains system
in week before units shut down montor pH in drain lt 500litres 50 H2SO4 8062016
42 Ferric chloride IBC run out product in service or send back to ace chemicals also if only remnants remain drai in week before units shut down montor pH in drain lt 5 Litres FeCL3 42 21062016
10 Sodium metabisulphate tank Bubble air through solution for a cou[ple of days until sodium metabisulphite forms sodium sulphate and then drain to contaminated drains system
in week before units shut down montor pH and ORP in drain lt200 litres NaSO4 or SMBS 20062016
antiscalant tank run out in normal service and drain residue to contaminated drains system in week before units shut down Monitor Phosphate 20 litres antescalant 20062016
2 x anion 2 x cation and 2 x mixed bed vessels ion exchange resin
pump out resin to storage truck to be removed from site - Cations 2 x 7000litres Anions 2 x 5400 litres Mixed beds 2 x 1250 litres of ion exchange resin
one train before units come off and the other shortly afterwards
27300 litre ion exchange resin 14062016
Condensate polishers
5 x ion exchange resin charges pump out resin to storage truck to be removed from site =gt Adelaide approx 6200 litres per charge
3 resin charges when first unit is in non-return to service period and other 2 when second unit is off
31000 litre ion exchange resin 14062016
Sulphuric acid measure vessel and Sodium hydroxide measure vessel
leave empty after last regeneration and then remove bottom flange and remove standpipe and flush with water
in week before units shut down montor pH in drain 1 or 2 litres 98 H2SO4 and 50 NaOH soln
8062016
pipework (concentrated chemical) disconnect and flush with water in week before units shut down montor pH in drain lt1 litre 98 H2SO4 and 50 NaOH soln
8062016
Sulphuric acid dilution vessel and pipework run tank out during last regeneration and drain remnants to effluent system Disconnect pipework and flush with water
in week before units shut down montor pH in drain 250litres 20 H2SO4 8062016
Ferrous Chloride
12 ferrous chloride tank pump out ferrous chloride for disposal and wash out remnants to contaminated drains system with copious dilution
in week before units shut down montor pH and iron in drain 5 m3 12 FeCL2 soln 21062016
dilution 1-2 solution tank Use as much as possible during normal operation and flush out remnants of tanks to contaminated drains system
in week before units shut down montor pH and iron in drain 15m3 1 - 2 soln 21062016
Carbon dioxide
36 G size cylinders Use carbon dioxide up in generator purge and purging hydrogen lines After Units off Could start one unit purge in last week of running
21062016
Pipework break pipe work at various locations to release carbondioxide After Units off Could start one unit purge in last week of running
21062016
Generators
2 x hydrogen in generator space Displace hydrogen with carbon dioxide at ealiest time possible and then purge with air After Units off Could start one unit purge in last week of running
orsat check 21062016
Chlorine plant 1000litres of 2 to 3 hydrochloric acid solution
Drain to contaminated drains system with copious waterseawater dilution in week before units shut down montor pH in drain 5000 litres lt1 HCl solution 21062016
Auxillary boiler dosing tank 60 litres BWT dosing solution Neutralise with acid or dilute with lots of water and into contaminated drains system in week before units shut down montor pH in drain 40 litres BWT 21062016
Workshop and laboratory chemicals amp hazardous substances Various chemicals solvents oils and Greases Arrange disposal by contractor After shut down 27062016
Bottled Gas
Various Cylinders on site Arrange transport to BOC After shut down Cylinders removed - no monitoring required
21062016
SF6 amp Freon in GCB amp transformers and Spare SF6 Freon cylinders SF6 and Freon in Generator circuit breaker and transformers and cyliders of SF6 and Freon in workshops and store compound
Arrange recovery and disposal by contractor After Shut down 21062016
Radio active substances (XRF etc etc) Pulsed XRF 2 x hand held XRF and Benchtop XRF in Laboratory
Oxford Instruments model X-Met 3000T Tube serial no 702033 (EPA no 21237) has been disabled Hand held pulsed and benchtop XRF to be sold
After Shut down 1102016
Petrol Tank underground storage NPS Store Get pumped out for Macmahons to remove
Timeframe After Shutdown
Target date 30062016
Status Complete
Diesel tanks Fire diesel tanks Cat Generator Tank
Get Pumped out Get Pumped out
Late June Late June
30062016 30062016
Complete Complete
Fuel Oil Aux Boiler Main fuel oil tank PPS fuel oil tank Flush fuel oil system including PPS to NPS pipeline
Get pumped out and cleaned Get pumped out and cleaned Clean out
Get pumped out and cleaned
After Shutdown After Shutdown After Shutdown
After Shutdown
31082016 31082016 31082016
31082016
Emptied - to be cleaned Emptied - to be cleaned Emptied - to be cleaned
Emptied - to be cleaned
Oils Plant - all but transformers and turbines Workshop and stores
Pump out - fans air heaters BFPs ID fans Gr Fans Mills Deashers and ploughs collect together on shut down
After Shutdown After shut down
31082017 31082017
Transformers degass- Remove Freon gas Coal line transformers site transfromers
Reclaim at shut down Reclaim when de-energised
After shut down June
31082017 31082017
Generator circuit breakers remove SF6 Generator circuit breakers SF^ in store
reclaim gas from circuit breakers Dispose of gas cylinders
after shut down after shut down
31082017 30062016 Complete
Batteries Various NiCad Lithium NiMetal hydride etc Lead acid in disposal area Battery room batteries
collect together on shut down collect together at shutdown McMahons
After shut down After shut down After shutdown
30062016 30062016 30062016
Complete Complete Complete
Mercury Globes and mamometers etc Collect together on shutdown After shutdown 30062016 Complete
Greases and permalubes Workshop and stores Collect together on shutdown After shutdown 31082017
Appendix E1
NPS Chemical plant that needs to be decommissioned
Item number decommissioning when amount to contend with
Ammonia Dilution system
1 NPS ammonia dilution 20 m3 tank Drain tank and flush out in week before units shut down 1 to 2 m3 25 to 5 NH3
2 3 x 2000 litre dosing tanks at NPS pump out remnants one at a time as units come off 3 x 200litres 25 NH3
Water Treatment Plant including Reverse Osmosis plant
98 sulphuric acid
3 2 x bulk chemical storage tanks (max vol 36m3)
at NPS Pump out tank and decontaminate Remove built up sludge
one before units come off and
the other shortly afterwards 3 to 4 m3 98 H2SO4
4 2 x 20 sulphuric acid dilution tanks at NPS pump out tank and decontaminate one before units come off and
the other shortly afterwards 2 x 200litres 20 H2SO4
50 sodium hydroxide
5 2 x bulk chemical storage tanks (max vol
36m3) at NPS Pump out tank and decontaminate Remove built up sludge
one before units come off and
the other shortly afterwards 3 to 4 m3 50 NaOH
6 50 sulphuric acid IBC at NPS Pump out tank and decontaminate Remove built up sludge in week before units shut down lt 500litres 50 H2SO4
7 10 Sodium metabisulphate tank RO plant NPS pump out tank and decontaminate in week before units shut down lt200 litres NaSO4 or SMBS
8 antiscalant tank RO plant NPS pump out tank and decontaminate in week before units shut down 20 litres antescalant
9 2 x anion 2 x cation and 2 x mixed bed vessels
ion exchange resin at NPS
pump out resin to storage truck to be removed from site - Cations 2 x
7000litres Anions 2 x 5400 litres Mixed beds 2 x 1250 litres of ion exchange
resin
one train before units come off
and the other shortly afterwards 27300 litre ion exchange resin
Condensate polishers
10 5 x ion exchange resin charges at NPS pump out resin to storage truck to be removed from site =gt Adelaide approx
6200 litres per charge
3 resin charges when first unit is
in non-return to service period
and other 2 when second unit is
off
31000 litre ion exchange resin
11 Sulphuric acid dilution vessel at NPS pump out tank and decontaminate in week before units shut down 250litres 20 H2SO4
Ferrous Chloride
12 NPS 12 ferrous chloride tank pump out tank and decontaminate in week before units shut down 5 m3 12 FeCL2 soln
13 NPS dilution 1-2 solution tank pump out tank and decontaminate in week before units shut down 15m3 1 - 2 soln
Auxillary boiler dosing tank
14 NPS AUX BLR - 60 litres BWT dosing solution pump out tank and decontaminate in week before units shut down 60 litres BWT
Workshop and laboratory chemicals amp hazardous substances
15 Various chemicals solvents oils and Greases
at NPS remove workshop chemicals oils etc After shut down manifest
16 Various chemicals paints amp glues at NPS Remove Site store oils and chemicals After shut down manifest
Petrol Tank underground storage
17 NPS Store Get pumped out for Macmahons to remove tank After Shutdown
Max 115 Kilolitres hopefully
done to lt1000 litres
Diesel tanks
18 NPS and PPS Fire diesel tanks Move to main diesel tank near tower C Late June 3700 litres max
19 NPS Cat Generator Tank Move to main diesel tank near tower C Late June 4700 litre max
Fuel Oil
20 NPS Aux Boiler tank Pump out and Clean After Shutdown 5000 litres max
21 NPS Main fuel oil tank Pump out and Clean After Shutdown 250000 litres max lt50000 litres
22 PPS fuel oil tank Pump out and Clean After Shutdown lt10000 litres
23 fuel oil Pipe from delivery point to NPS and
PPPS service tanks clean out line After Shutdown
Unkown
24 fuel oil Pipe from PPS service tank to PPS LP
and HP oilheater and return line Clean out line After Shutdown
Unkown
25 PPS fuel oil lp heater X 2 Clean out heater After Shutdown Unkown
26 PPS fuel oil hp heater X 2 Clean out heater After Shutdown Unkown
27 PPS fuel oil lines to burner and back to heaters clean out line After Shutdown Unkown
28 NPS fuel oil heaters x 2 Clean out heater After Shutdown Unkown
29
NPS fuel oil lines to transfer pumps service
pumps lines to burners and back to main oil
tank NPS unit 1 and 2
Clean out lines After Shutdown
Unkown
Oils
30 NPS Turbine oils from unit 1 and 2 Pump out and dispose After Shutdown 32860 x 2
31 NPS unit turbine oil tanks and oil conditioners clean out After Shutdown
32 NPS turbine oil transfer lines and storage tank clean out After Shutdown
33 NPS mills x 12 ground floor collect together on shut down After shut down 1800 x 12
34 NPS Primary and secondary air fans above
ground x 2 Pump out and dispose
After Shutdown 770 x 4
35 NPS Primary air and secondary air heaters lube
oil X 2 - above ground level Pump out and dispose
After Shutdown 425 X 4
36 NPS Primary air and secondary air heaters
gearbox oil X 2 - above ground level Pump out and dispose After Shutdown 80 x 4
37 NPS Boiler Feed pumps grbx tank amp cooler X 4 Pump out and dispose After Shutdown 2800 x 4
38 NPS Deasher x 2 hydraulic oil Pump out and dispose After Shutdown 60 x 2
39 NPS Coal line ploughs x 2 Pump out and dispose After Shutdown 450 X 2
40 NPS ID fans x 4 Pump out and dispose After Shutdown 770 x 4
41 NPS GR fans x 2 Pump out and dispose After Shutdown 500 x 2
42
NPS Conveyer gearboxfluid drives 1(x2) 2(x2)
3 7(x2) 9(2)11(x2) - above and below ground
level
Pump out and dispose
After Shutdown
130 to 372 mainly in 150litre
range
43 NPS compressors x 3 Pump out and dispose After Shutdown 100 x 3
44 NPS Cat generators x 2 Pump out and dispose After Shutdown 200 x 2
45 Workshop storages at NPS collect remove from site and dispose After Shutdown y
46 Stores Shed oils and grease at NPS remove from site and dispose After Shutdown lots
47 waste oil collection area at NPS remove from site and dispose After Shutdown 12000 + litres
Transformers oils
48 NPS transformer - 2 x stepup Fuji Remove oil late june 2x 53000litre
49 NPS transformer - 2 x unit Wilson Remove oil late june 2 x 13000 l
50 NPS transformer - 2 x station tyree Remove oil late june 26000
51 Fuel oil unloading Remove oil late june 600
52 Town water Remove oil late june 600
53 Spare step up at NPS Remove oil late june 50000
54 PPS PPS Met vickers step up x 4 Remove oil late june 4 x 69000
55 PPS Ferranti house Remove oil late june 36000
56 PPS Unit Remove oil late june 4 x 4000
57 PPS Aux Remove oil late june 4 x 700
58 PPS GP Remove oil late june 1400
59 PPS ASH Remove oil late june 1400
60 PPS coal line starter Remove oil late june 2100
61 Spare unit at PPS Remove oil late june 1300
Batteries
total 565900 litres
62 Various NiCad Lithium NiMetal hydride etc at N remove from site and dispose After shut down Unknown
63 Lead acid in disposal area at NPS remove from site and dispose After shut down Unknown
64 NPS Battery room batteries remove from battery room and put on pallet (outside) late june Unknown
65 NPS Battery room Batteries Remove from site late june Unknown
Mercury
66 Globes and mamometers etc at NPS remove from site and dispose After shutdown Unknown
Greases and permalubes
67 Workshop and stores at NPS remove from site and dispose After shutdown Unknown
Coolant
68 Cat diesels NPS Pump out and dispose late june 100 litre
69 PPS fire diesel pumps Pump out and dispose late june 100 litre
Appendix F
D I
I
McMAHON SERVICES a allestrin Mi=iMMi
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
JSEA Number AD 010
Project and Organisation Details
Project Site Port Augusta Power Station Project Manager Ross Fitzgerald Sign Phone 0439 034 900
Title CARTING MATERIAL FROM BORROW PIT CARTING ASH FROM
DISCHARGE LEVYrsquoS TO DEMO PLANT SITE Site Supervisor
Mick Oster Sign Phone
0400 923 758
Job Task Excavation of material from borrow pit or ash from discharge levyrsquo carting
material to demo plant site driving dump trucks on road way to demo site
Site Safety Advisor Louis Kokkinos Sign Phone 0409 222 087 1
Principal Contractor Flinders Power
Job Number 5201750 JSEASWMS Creation 10 Revision Number 1 Has a Project Risk Assessment Register been Developed for the Project
Implement the PRAR control measures and place into this JSEASWMS
Legislative Compliance Review Information referenced during the JSEA Planning ndash Record applicable document reference number and name below
Legislation Codes of Practice Standards Emergency Plan Procedures SWIrsquos Engineering Work Cover SDS Other
WHS Act 2012
WHS Regulations 2012
CoP Excavations Cop Mobile Plant
Project Emergency Plan
SWI 0400 Plant and equipment
SWI 0100 Manual handling
SWI 0327 Selection of Hand
Protection
Traffic mngmt amp Site movement of plant Environmental protection Act 1993 ndash EPA license 13006
High Risk Work Structural Collapse ChemicalFuelRefrigerant Lines Work in Tunnel Explosives
Fall from Heights gt 3m Demolition of Structures Energised Electrical Installations Mobile Plant Work Involving Diving
Disturbance of Asbestos Pressurised Gas Pipes Mains Contaminated Flammable Atmosphere Traffic Tilt-upPrecast Concrete
Excavation gt15m Telecommunication Towers Extremes of Artificial Temperature Confined Spaces Risk of Drowning
Qualifications Licenses Plant Equipment
LE Excavator ST Service Truck HS Dump Truck HR Truck Excavator Moxy truck Fuel Trailer and Service Truck Water cart
Permit Tick Required
Asbestos Daily Diary (F062)
Confined Space (F603)
Demolition (F285)
Excavation Penetration (F636)
Excavation Entry (F166)
Hot Work (F630)
Lifting Operation - Lift (F189)
Working at Heights (F676)
PPE Tick Required
Important
(1) Persons within 10m of noisy plantprocess must wear Hearing PPE
(2) Hand protection must be selected via SWI327 - manual tasks
(3) Double eye protection to be worn when grinding
IF PRINTED -Page 1 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin Mi=iMMi
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Potential Hazards This list may not identify all potential hazards present Visit the job site to ensure all hazards are identified and implement appropriate control measures in the JSEASWMS
Fire Ignition Sources
Will hot work be conducted Implement Fire prevention strategies
(Complete the Permit)
Refer to SWI344-Completing a Hot Work Permit Standard S023-Hot Work
Permit S002-Managing Risk of Risk in Fire Ban Seasons
Hazardous Substances Will work task involve contact with any Hazardous Substances
Refer to the SDS and consider specialised PPE precautions
Refer to SWI099-Accessing SDS SWI123-Handling Hazardous Subs
Environmental Impact- Vibration Noise Will vibration or noise emission extend beyond the project perimeter
Is vibration monitoring from demolition process especially when working near
heritage type buildings (Check the PRAR - F224)
Refer to SWI147-Environmental Management - Noise amp Vibration Control
Hazardous Manual Task
Will the worker be lifting moving objects or material
Workers to select controls measure based upon HIRAC
Correct lifting techniques Workers to stretch before and during task
Refer to SWI100-Hazardous Manual Tasks SWI102-Stretching Techniques
Services Will service isolation disconnection for plantequipmentinfrastructure
Any overheadunderground services within work area
Refer to SWI704-Service Isolation - Lock out Tag Out
Environmental Impact- Decontamination of Plant Equipment Will Plant Equipment and PPE require decontamination at the end of each
day and or when exposed equipmentplant is to leave the
asbestoscontaminated area
Refer to SWI147-Environmental Management - Noise amp Vibration Control
Excavations
Does the task require an excavation to be dug
Check for services prior to excavation (Complete the Permit)
Refer to Standard S053 - High Risk Construction Activity- Excavations
Emergency Preparedness Establish an emergency plan for the task
Refer to SWI082-Emergency Planning for Project Sites
Environmental Impact - Dust Will the task generate dust or is there a requirement for disposal of hazardous
waste
Refer to SWI148-Environmental Management - Dust Control
Working at Heights amp Falling Objects
Will the task require workers to work at height or around open
penetrations voids Are they trained to perform the task
Delineate areas where workers amp others may pass (Complete the Permit)
Refer to SWI 0085 - Prevention of Falls - Planning
Plant Machinery amp Equipment Will the plant work area be delineated away from other works
Is the operator ticketed licensed for this type of equipment plant
Refer to Standard S055 - HRCA - Safe Work Zone - Traffic Management SWI-
026-TicketLicencesCompetencies to Perform Work
Environmental Impact - Haz Substance Storage Spills Is there potential to release pollutants to drainrsquos marine waterways ground
atmosphere
Consider if any potential spill sources exist at the work area
Consider the need for bunds drip trays spill blankets absorption etc
Refer to SWI149-Environmental Management - Soil Erosion Drainage Management
Slip amp Trip Hazards
Will the task produce potential slip and or trip hazard (Material
Equipment)
Implement housekeeping strategies
Lifting Operations (Crane Lifts) Consider if work task involves crane lifts
Ensure a lift Permit has been conducted (Complete the Permit)
Refer to Lifting Operation - Lift Permit (F189)
Environmental Impact - Waste Disposal Will the task create prescribed waste requiring special disposal
Refer to SWI152-Environmental Management - Waste and Recycling
Task Security Nearby Works
Will barriers delineation be required to exclude personnel or vehicles
from the work area
Refer to Standard S051 - HRCA - Safe Work Zone - Site Security
Cuts and Abrasion Is there a risk of cuts abrasion
Consider task separation or adequacy of PPE
Refer to SWI327-Selection of Hand Protection
Environmental Impact - Cultural Heritage Could the task uncover indigenous or European artefacts
Could the task impact on heritage buildings structures
Refer to SWI154- Managing Cultural Heritage Protocol Uncovering Artefacts
Customer and Surrounding Property
Consider the potential risk to neighboursrsquo property
Consider potential damage to customer property nearby
Refer to Standard S051 - HRCA - Safe Work Zone - Site Security
Traffic Management Consider how construction traffic will access and egress the workplace
in a safe manner
Refer to Standard S055 - HRCA - Safe Work Zone - Traffic Management
Asbestos Consider if personnel may be exposed to asbestos during this task
If unsure check the Asbestos Register
Refer to SWI 0349- Planning and Asbestos Removal Task SWI 0233 Friable
Asbestos Personal Decontamination Process
Weather Conditions Working Outdoors
Does the weather pose a risk to a workerrsquos health Safety or the environment Consider the ambient conditions associated hazards Consider precautions to prevent exposure to
heatcold
Noise Will the work create higher noise levels Consider the need for hearing protection in the work area
If hearing PPE is deemed as required then all workers in a 10-metre radius (minimum) of the noise source must wear hearing PPE
IF PRINTED -Page 2 of 9 104 Exploration Dr Karratha UNCONTROLLED 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
-
-
-
-
the hazards
C V 0 Ugt ts
Level2 e ~
Ugt 0 Substi tute the hazard with someth ing co
Q) b safer E J e co Isolate the hazard from people Ugt
C -0 8 C Reduce the risks through engineering co
s contro ls a 1ij ~ Q)
V c s a _]
ai ai Level3 0 gt Q)
_J
Reduce exposure to the hazard
V using administrative actions
V Use personal protective equipment
LOWEST L E A S T
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Hazard Analysis and Control Worksheet
Step 1 Consequences (Severity)
1 Insignificant bull Cause a near miss needs to be reported
bull Limited impact to a local area but no long-term effects
2 Low bull Injury requiring First Aid treatment and or short term discomfort
bull Localised short to medium term impact to the environment
3 Moderate
bull Potential for injury resulting in medical attention
bull Localised medium to long term impact to the environment
bull Damage to plant property
4 Major bull Serious injury Long term disability
bull Widespread or off-site release medium to long term impact
bull Major financial loss damage to plant Loss of production capability
5 Extreme
bull Potential to be fatal Permanent disability
bull Release off-site with detrimental widespread irreparable environmental damage
bull Destruction of property or plant Huge financial loss
Step 4 Action Plan
Low Minimal risk monitor where work changes
Moderate Some action may be required
Supervisor to determine and monitor
High Activity Must be reviewed by Project Manager and have additional risk controls built into the SWMS and work procedure
Extreme
Activity to be re-planned andor re-designed
Must reduce risk immediately ndash highest priority Work is not commencing until appropriate controls are in place
Hierarchical of Controls
Control measures must be ranked from the highest level of protection and reliability to the lowest This ranking is known as the hierarchy of control The higher order controls must always be considered first
If residual risks are ranked as lsquoHIGHrsquo the team shall determine the adequacy of controls and consider further risk reduction strategies (Refer to step 4 - Action Plan)
Step 2 Potential (Likelihood)
A Certain to Occur
Expected to occur in most circumstances
B Likely Will probably occur in most circumstances
C Possible Might occur at some time
D Unlikely Could occur at some time
E Rare May occur only in exceptional circumstances
Step 3 Risk Matrix Consequence
Insignificant Low Moderate Major Extreme Level 1 Level 2 Level 3 Level 4 Level 5
Lik
eli
ho
od
Certain to Occur (A) H H E E E
Likely (B) M H H E E
Moderate (C) L M H E E
Unlikely (D) L L M H E
Rare (E) L L M M H
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5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
bull
-iW=iMdbullMi McMAHON q a allestrin SERVICES 1ntract ft_ -_ __
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Job Safety Environmental Analysis (JSEA) Safe Work Method Statement
Step Process Steps Potential Hazards Inherent Hazard Control Measures Residual No List the steps needed to do the Against each step list potential hazards that Risk For each hazard identify control measures to eliminate or minimise the risk of Risk Action by
job in the sequence to be done could cause injury when the jobrsquos done Rating injury (hierarchy of controls) Rating (Print name of person)
1 Pre-start talks with Michael Atkinson Ben Knoop Louis Kokkinos and Mick Oster to determine dumping area within live demo plant
Miss communication between civil and demo team causing work crew overlap hazards such as collision with demo plant personnel or LV
H Consultation in site office dumping area in live demo plant to correctly locate dumping zone Visually inspect demo plant and personnel near dumping zone Identify the need to use 2-way communications on channel 27
L Michael Atkinson
Louis Kokkinos
Mick Oster
Ben Knoop
2 Establish one way hauling routes for dump truck drivers ndash Pre-drive route with Mick Oster Louis Kokkinos and Ben Knoop
Interaction or collision with other plant people or vehicles in the area or on route Demo plant LV or personnel unclear or unaware of one-way route
H Pre-drive route and communicate traffic management plan to dump truck drivers Ensure dump truck drivers understand one-way route by providing them with guided tour and escort Provide map of route to drivers Drivers must adhere to traffic management plan Drivers must not drive on other road ways within live demo plant Dump truck drivers must use 2-way radio to announce arrival and departure at live demo plant on haul roads and dumping area
L All personnel signed onto this document
Dump truck drivers speeding on haul E All dump truck drivers must not exceed MAX 20 Kmh in demo area H All personnel signed roads or making contact with overhead at all times Dump truck drivers must assume that over lapping demo onto this document hazards such as light poles or electrical work crew will not expect them to be in their work zone and should lines prepare to stop or give way at any time Dump truck drivers must
not raise tubbed or unload in any area other than designated areas as per attached map
Demo crew not aware of us in their work H Demo supervisor must brief work crew of civil and demo crew L Demo crew and zone or one-way haul roadsroute - interactions and provide work crew and plant operators with map of team Interaction of heavy light vehicle resulting civildump truck hauling roads and one-way areas Demo work crew in accident causing injury plant damage plant LVs and personnel must avoid civil haul road areas if
practicable to do so
3 Civil work crew within demo site
High risk works associated with movements of mobile plant contact with plant and personnel crush injuryrsquos or the potential for death
E Dump truck operators must not exit cabins in active demolition areas unless itrsquos for an emergency or vehicle has broken down Drivers must wear hard hats and safety glasses if in the active demolition site 2-way radio to be used to communicate emergency situations or any requirements to exit truck cabins Existing muster points apply for civil team
M All personnel signed onto this document
4 Suppressing dust Dust arising from borrow pit activities hauling on roads or carting or excavating levy ash creating health environmental damage or concerns
H Implementation of 3 level Trigger Action Response Plan must be utilised when monitoring dust levels during ongoing works Use of water cart on haul roads and any other areas where dust suppression is required
L All personnel signed onto this document including water cart operator
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5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Step No
Process Steps List the steps needed to do the job in the sequence to be done
Potential Hazards Against each step list potential hazards that
could cause injury when the jobrsquos done
Inherent Risk
Rating
Hazard Control Measures For each hazard identify control measures to eliminate or minimise the risk of
injury (hierarchy of controls)
Residual Risk
Rating Action by
(Print name of person)
Ash material drying out causing dust to become airborne and leave the site boundary causing environmental harm
H Constant monitoring of area to ensure material is wet down and suppressed Capping material to be placed on ash to prevent becoming airborne and suppressed with water as necessary to prevent dust becoming fugitive Direct dumping and immediate spreading to avoid stockpiling of ash causing unnecessary dust
L All personnel signed onto this document including water cart operator
5 Dumping ash material in PPS A station basement area Excavating ash from levee
Dumping on uneven surface causing risk of tray tipping over
H No dumping on uneven surface unless the use of spotter and the cab is not articulated Always tip with the cab and tray in line to avoid tipping tray Assess ground conditions and drive to conditions at all times
L All personnel signed onto this document
Slumping of ramp levee and stockpile causing material to give way
H Operators to check condition of ramp levee and stockpile to assess area for cracking slumping and soft spots that could cause machine to become unstable
L All personnel signed onto this document
Tipping material without a tip head to back onto
H Operators are to follow instructions from the dozer excavator operator and are to tip short with a spotter so the dozer can push the material Dump truck operators must not tip short without the use of the spotter to guide into position via verbal or hand signals
L All personnel signed onto this document
Tipping over basement edge without tip head causing potential drop of machine and injury to personnel
H Operators to use established ramp at south end of basement as tip location to eliminate tipping over live edge Operators are to tip short with a spotter so the dozer can push the material into basement
L All personnel signed onto this document
IF PRINTED -Page 5 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
I I I I I I
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Step No
Process Steps List the steps needed to do the job in the sequence to be done
Potential Hazards Against each step list potential hazards that
could cause injury when the jobrsquos done
Inherent Risk
Rating
Hazard Control Measures For each hazard identify control measures to eliminate or minimise the risk of
injury (hierarchy of controls)
Residual Risk
Rating Action by
(Print name of person)
IF PRINTED -Page 6 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
D
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
How to Complete the JSEASWMS Process
1 When developing a JSEASWMS refer to the applicable Legislation Code of Practice and Company Standards 4 Each of the hazards identified must be risk rated hazard control measures defined precautions and
and Safe Work Instructions (Documents referenced in this JSEASWMS must be recorded on page one) equipment must be identified to reduce the risk
5 Responsibilities are allocated to each control measure defined in the JSEASWMS 2 The job is to be broken up into individual process steps 6 All workers involved in the task must review the document and it must be accepted by workers signing 3 For each step the potential hazards are identified
this JSEASWMS form
NOTE This is a legally binding document to which all workers must adhere
Approval
I the undersigned Supervisor confirm that I have checked all qualifications provided and verify that they are applicable and current I have also ensured that all inductions have taken place and that all tools and equipment are properly maintained and safe to use I have issued all relevant permits and have ensured to the best of my ability that the work area is safe and that the work will not damage any property or injure any persons
Supervisor Name Supervisor Signature Date 9th August 2017
Development amp Review
Initiators of JSEArsquos are responsible for consulting with supervisors engineers or other persons directly in charge of the work and any other personnel involved in the execution of the task (as appropriate) for input into the JSEASWMS during the development and review stages
Other persons may be consulted for technical advice or review of the JSEA to ensure that the proposed measures are effective and workable (Record names below)
The JSEASWMS shall be reviewed
(1) At the commencement of a new task (2) If a task changes (3) If a hazard been identified (4) At the JSEASWMS three-month anniversary
Developed Consulted By Reviewed By
Date 7th August 2017 Date 8th August 2017 Reason for review Change of TMP map and inclusion of TARP
Name
Name
Louis Kokkinos
Ben Knoop
Position
Position
Site Safety Advisor
Site Civil Engineer
Name
Name
Louis Kokkinos Position
Position
Site Safety Advisor Added step 4
Changed TMP map on last page
Name Mick Oster Position Senior Site Supervisor Name Position
Name Jamie Kirk Position Site Safety Advisor DEMO Name Position
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5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
JSEASWMS Sign off and Acceptance of Proposed Work Method and Associated Responsibilities
bull I the undersigned confirm that I have been consulted regarding the above JSEASWMS and that its content is clearly understood
bull I also confirm that my required qualification(s) etc to undertake this activity isare current and that I am competent to complete the work safely and without risk to my own or the health and safety of others
bull I clearly understand that the control(s) in this JSEASWMS must be applied as documented otherwise work is to cease immediately and I will ensure that the work area is made safe as far as is reasonably practicable
No Surname First Name Classification Employed by Signature Date
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20 bull
bull ASH D AM
bull ENTRANC E R OAD TO AUGUSTA POWER STATION
IF PRINTED -Page 8 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
bull
bull BORROW PIT
bull M
M
dg h
fff
fff
IF PRINTED -Page 9 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
Appendix G
Power
Augusta Power Stations
Dust Management Plan
Demolition and Site Rehabilitation
Flinders Power May 2018
Title Names Signatures Date
Approval Facility Manager APS
Approval Program Manager ndash Flinders Sites
Document History
Rev Date Amended by Description of Changes
Draft Initial Draft Version
Rev 1 24082016 Updated and changed to cover Make ndashSafe Period
Rev 2 09092016 Updated and changed to cover Demolition Period
Rev 3 05102016 EPA recommendations and corrections incorporated
Rev 4 05102016 Ash Storage Area dust management options modified
Rev 5 05112016 Final version incorporating EPA feedback
Rev 6 01022017 Revised following dust event of 1st and 2nd January 2017
Rev 7 03032017 Revised to address EPA feedback of 20th February 2017
Rev 8 09082017 Revised to address excavation transport and use of ash for backfill
Rev 9 08122017 Revised to incorporate changes as per EPA letter of 6 December 2017
Rev 10 03012018 Revised to address proactive watering of the former coal stockpile
Rev 11 25052018 Revised to address the capping of the former coal stockpile area
Rev 12 15618 Revised to add seeding of the former coal stockpile area
Printed copies are uncontrolled Please ensure you are referring to the most current version 1
AindersPower
Contents 1 Introduction amp Purpose 3
2 Background 4
3 Setting 5
Stockpile 5
Ash Storage Area 5
Coal Conveyor System 6
Coal Storage Bins 6
Roadways 7
Demolition Activities 7
Utilities Available During Demolition 8
5 Environmental Conditions 14
EPA Notification of Process Changes 14
Licence Conditions 14
Ambient Dust Monitoring ndash TSP amp PM10 17
Speciation 20
6 Dust Management Plan (DMP) 21
Plan Stakeholders - Roles and Responsibilities 21
Implementation and Control Actions 23
Table 1 Aspect and Control Action 1 Coal Stockpile Operations 24
Table 2 Aspects and Control Action 2 Ash Storage Area Management 26
Table 3 Aspects and Control Action 3 Coal Conveyor System and General Site 28
Table 4 Aspects and Control Action 4 Site Roads (General Conditions) 29
Table 5 Aspects and Control Action 5 Demolition Activities 30
7 Ash Storage Area ndash Dust Management 32
Whole of ASA Dust Suppression Treatment 32
Trigger Action Response Plan ndash Ash Storage Area 32
8 Former Coal Stockpile Areandash Dust Management 37
Trigger Action Response Plan ndashStockpile Revegetation 37
9 Dust Monitoring and Evaluation 39
10 Community and Stakeholder Engagement 40
101 Complaint Management 41
References 42
Appendices 43
Printed copies are uncontrolled Please ensure you are referring to the most current version 2
AindersPower
1 Introduction amp Purpose Flinders Power operates the Flinders assets which comprise the Northern and Playford Power Stations in Port Augusta (known collectively as the lsquoAugusta Power Stationsrsquo (APS)) as well as the Leigh Creek Coal Mine Flinders Power also formerly maintained a dedicated rail line between Leigh Creek and Port Augusta
Flinders Power is strongly committed to sound environmental management as demonstrated within the board-endorsed Environment amp Community Policy The Policy states a commitment to partnering with the communities in which Flinders Power operates and a focus on continual improvement of environmental performance
The nature of the operation if poorly managed has the potential to create fugitive dust emissions which may adversely impact on the amenity of the local community Therefore the objectives of dust control are to
1 Minimise and control the impact of Flinders Power closure activities on air quality and emission of dust from site operations
2 To ensure compliance with EPA Licence requirements
3 Maintain environmental amenity and a strong relationship with the local community and regulatory authorities
To achieve these objectives a Dust Management Plan (DMP) has been formed The objectives of the DMP are to
bull Nominate potential sources of dust emissions
bull Describe methods and responsibilities for dust management controls to minimise the potential for impacts to the environment
bull Clearly define the responsibilities and actions required to respond to environmental incidents
bull Outline the methods to communicate and engage with the local community in relation to dust management and
bull Outline the monitoring and reporting arrangements to ensure ongoing compliance with the DMP
Scope This plan applies to activities covered under
bull EPA Licence 13006 (Northern amp Playford Power Stations)
This document is also part of the site Environmental Closure and Post Closure Plan where specific activities and responsibilities for performing dust management measures are assigned to the appropriate parties During the site demolition process Flinders Power has specific responsibility for areas not covered by the plant demolition project These areas the Ash Storage Area and the Coal Stockpile Pad are subject to separate rehabilitation and revegetation projects covered in the Environmental Closure and Post Closure Plan
Dust management activities involved with the decommissioning and demolition of the plant and structures on site are covered in the demolition plans developed under the Project Alliance Agreement
Printed copies are uncontrolled Please ensure you are referring to the most current version 3
AindersPower
2 Background
The Playford Power station (PPS) ceased operation in April 2012 The Northern Power Station (NPS) ceased operation on the 9th May 2016
NPS and PPS utilised a supply of coal delivered daily by train from the Leigh Creek Coalfields After combustion in the boilers ash was collected from the bottom of the boiler mixed into a seawater slurry and transferred to the Ash Storage Area by pipeline Fly ash from the exhaust gas was captured by electrostatic precipitators at NPS bag house filters at PPS and then sold to secondary users with the excess transferred to the Ash Storage Area
The Ash Storage Area was continually filled with deposited ash and sea water slurry from the boilers The nature of this mixture allowed the surface to form a salt crust when it dried out - due to the ever-changing location of the deposition field creating high areas of ash During heavy rain this surface crust was occasionally damaged allowing winds to disturb the ash and potentially blow it off site
There was also a flooding regime for the Ash Storage Area whereby internal levees were built up filled with an ashwater mixture and then quickly released to allow for a large portion of the surface of the Ash Storage Area to be flooded so that a salt crust could re-form on top This management strategy changed in October 2016 due to the erosive effects of utilising a pure seawater flooding technique (as opposed to an ash and seawater slurry) and the increased risks associated with dust generation In November 2016 the 212Ha Ash Storage was sealed utilising a dust suppressant applied by air and land
The coal stockpile at Augusta Power Stations was designed as an emergency supply should mine site or railway operations be impacted Historically the coal stockpile has been used on only intermittent occasions However during the last few years of operation due to increased variability in load profile in response to increased volatility in the SA energy market the stockpile was utilised as a dynamic stockpile The movement of coal on the stockpile became a frequent activity to meet strategic stockpiling or generation output needs as required The increased use of the stockpile increased the risk of fugitive dust emissions
To reduce these impacts during operation there were established Operating Instructions relating to the methods of stockpiling and reclaiming coal from the stockpile the use of water cannons for wetting down the stockpile the use of a water truck for applying dust suppressant to the surface of the stockpile water and a description of weather conditions for operations on the stockpile
Whilst these actions were effective in reducing dust emissions from the stockpile and Ash Storage Area a change in strategy continued monitoring vigilance and innovation is required to maintain control over dust emissions during the demolition and site rehabilitation phase
Other identified sources of minor fugitive dust during this phase include roadways and during demolition of coal and ash handling plant
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AindersPower
3 Setting
The township of Port Augusta is located approximately 300km north of Adelaide on the northern tip of Spencer Gulf and has a Dry Arid Low Latitudes climate
Figure 2 demonstrates the seasonal wind patterns for the region including wind direction and wind speed The charts indicate that strong regular southerlies are dominant during the summer season Port Augusta township especially the suburb of Willsden is potentially affected by fugitive coal dust and ash for most of the year except during winter when the dominant wind direction changes from southerlies to northerlies
Stockpile
The distance between the coal stockpile and the closest residents in Port Augusta to the north is approximately 35km (refer to Figure 1 below)
Coal formerly arrived from the Leigh Creek mine in open rail wagons and was bottom dumped via the rail car dumper on the rail line near the coal stockpile It was then conveyed to either the main coal storage bins for immediate use or to the stockpile for storage
Maintaining the moisture level of the coal to a point where surface dust mobilisation is decreased from the stockpile was achieved by the use of water cannons on the stockpile
The coal stockpile has been decommissioned and as of September 2016 the pad was being rehabilitated and revegetated A sprinkler system has been established over the surface area to promote vegetation establishment and control dust
Ash Storage Area
Waste ash from the boilers and the electrostatic precipitators was formerly mixed with seawater and piped to the Ash Storage Area
Deposited ash formed a salt crust due to the evaporation of water from the mix which stopped the ash from being mobilised and entrained by wind into the airshed
The levees on the edges of the Ash Storage Area were periodically raised to allow for a greater ash holding capacity
During the operational period ash could enter the airshed during windy periods when the surface crust was damaged by heavy rain and after heavy machinery working on the ash dam has broken up the surface A map of the Ash Storage Area in shown in Figure 3 with flood coffer dams numbered and the direction of floodwater flow during surface flooding events indicated
Following NPS closure a number of measures were taken to control dust lift-off from the Ash Storage Area including the installation of new pipework to ensure continued seawater supply the construction of new coffer dams and the use of a temporary pump and pipework from Playford Periodic filling of the coffer dams and breaching enabled seawater to flow out and re-establish a crust However this continued operation was progressively causing erosion to the surface of the dam and the banks of the coffer dams and certain areas such as the central discharge point were unable to be reached by flooding In August 2016 a 15Ha area adjacent the original slurry discharge point was sealed with dust suppressant applied by cropduster This treatment was successful in containing dust from this area Continued flooding to the east and west of this location caused
Printed copies are uncontrolled Please ensure you are referring to the most current version 5
AindersPower
further damage and in October 2016 it was decided to change strategy from seawater flooding to sealing the entire dam surface with dust suppressant
These measures were intended to achieve short-term dust control particularly during summer 201617 while the long-term rehabilitation plans were being implemented These actions are referenced in Implementation and Control Action 2
In late December 2016 a major storm event impacted the dust suppressant seal causing areas of ash to be re-exposed On the 1st and 2nd January 2017 a dust event occurred whereby windblown dust was generated from the surface of the dam
Reapplication of the dust suppressant was conducted throughout January 2017 with a seal re-established by 25th January 2017 Commencement of earthworks also occurred during this period with the opening of an adjacent borrow pit and the commencement of construction of topsoil lsquofingersrsquo across the surface of the dam
At the time of updating the Dust Management Plan approximately 180ha of the Ash Storage Area had been covered with soil with the completion of five east-west access fingers Seeding had occurred over 140ha of the site
Coal Conveyor System
The coal conveyor system begins at the train unloading facility at NPS Coal was directed either to the coal storage bins or the coal stockpile by the conveyor system Coal from the storage bins was conveyed to PPS or NPS as required The coal conveyors are enclosed and the transfer points are inside a number of enclosed towers to reduce dust emissions
Fugitive coal dust was formerly washed down daily from the inside of the conveyor enclosures and the transfer towers The effluent was captured in sumps underneath the towers where the coal dust sediment was collected and returned to the stockpile area
Following closure clean-out of the conveyor lines and transfer towers occurred with all accessible coal washed to the ground where it could be contained and disposed These control actions are described in the APS Environmental Closure and Post-Closure Plan
Short term coal dust management measures are being applied during the demolition and rehabilitation phase This is referenced in Implementation and Control Action 3 amp 5
Coal Storage Bins
There are three Coal Storage Bins at NPS with a capacity of 18000 tonnes located to the west of the stockpile These are enclosed with a tripper on top conveyors and ploughs on the bottom conveyors Both of these are enclosed to reduce dust emissions
Coal bins at Playford were decommissioned and emptied in 2012
Following closure clean-out of the NPS bins occurred with all accessible coal washed to the ground where it could be contained and disposed These control actions are described in the APS Environmental Closure and Post-Closure Plan
Short term coal dust management measures are being applied during demolition of the bins This is referenced in Implementation and Control Actions 3 amp 5
Printed copies are uncontrolled Please ensure you are referring to the most current version 6
AindersPower
Roadways
There are a number of roadways sealed and unsealed around the site where dust settles and aggregates Road vehicle speeds are kept to a 20 kmh limit on most roads with two roads on site having a 40kmh limit for both safety and environmental considerations
The Ash Storage Area is surrounded by a levee system allowing vehicle access on top Windblown ash can settle on the roadways and this is periodically sprayed with dust suppression chemical and wet down with a water truck to reduce dust lift off
Dust control measures used pre-closure are continuing during the closure process This is referenced in Implementation and Control Action 4
Demolition Activities
Flinders Power (FP) and McMahon Services Australia formed an Project Alliance Agreement in May 2016 to facilitate the successful delivery of the site demolition program
The Alliance is a unified team to jointly manage the planning asset salvage and decommissioning works of the Augusta Power Stations The successful delivery of this project relies on the combined efforts of both FP and McMahon Services and the pooling of knowledge experience and expertise under the Alliance is the best contractual means to deliver the complex closure program The Alliance will see the partnership of both the Owner Party (FP) and Non-Owner Party (McMahon Services) to create a single team working unanimously collaboratively and cooperatively and acting in good faith to make best-for-project decisions
FP have invaluable knowledge and expertise about the Augusta Power Stations This knowledge is integral to ensure the safety of all personnel and management of environmental risks McMahon Services has over 25 years of decommissioning experience conducting high risk demolition and hazardous materials removal works at sites across Australia McMahon Services are a licenced entity by the SA EPA and are accredited to ISO 14001
Each module of works within the delivery phase is defined by a unique scope of work with Flinders reserving the right to let independent work scopes
Potential dust generating activates identified in the Project Risk Assessment Register include
bull Stack felling
bull Bin felling
bull General demolition activities
bull General civil works and
bull General site traffic
Dust management measures are being incorporated into the demolition control plans as referenced in the APS Environmental Closure and Post Closure Plan and Alliance Demolition Plans
Printed copies are uncontrolled Please ensure you are referring to the most current version 7
AindersPower
Utilities Available During Demolition
The majority of electricity used by major plant at the station was formerly provided by onsite generation Following closure there remain a number of small electricity supplies to the site mainly into offices and workshops though the main infrastructure utilised for dust control is provided by large standalone portable generators A number of water pumps are used around the Ash Storage Area for seepage water and a portable diesel water pump can be deployed as required
Seawater has been previously pumped from the cooling water inlet screens of NPS to the Ash Storage Area via an agreement with a third party to access power supplies Additional pipework and outlets were installed on the southern side of the Ash Storage Area for targeted seawater flooding Additional seawater was also obtained from the Playford Station seawater inlet using a portable diesel water pump for flooding the south-western corner of the Ash Storage Area
Mains water at high pressure off the SA Water mains pipeline is also available on site and is utilised for stockpile revegetation
Printed copies are uncontrolled Please ensure you are referring to the most current version 8
I
bull ~ - __ i ----
middot1 ------ --bull- __ _
~ --I
i 1 i
~--~ V i ~ I
yen 1
I i I l
7 - -+ i i
middot1
i
I l i jL-________________ _ 0 )OOlaquor0ffi o~middot-=------ Naa-est RB51denDaJ Receplen
FIGURE 1 0 us1 Monilltribulli Loootion
AindersPower
Figure 1 Location of the Port Augusta and Stirling North Communities in relation to the APS Site and Coal Stockpile (after Aurecon 2010)
Printed copies are uncontrolled Please ensure you are referring to the most current version 9
---
WW SPEED (mis)
bull gtbullIII
- 8 8 11 1 5 7 - U
D 3Cbull 67
D 21 - 3C
D o5bull 21
AindersPower
Wind shadow directions Port Augusta Lgt Stirling North y7
Figure 2 Seasonal Wind Profile
Printed copies are uncontrolled Please ensure you are referring to the most current version 10
~IRU LAKl
oms
RL
(
AindersPower
sJ RAHPn
-~
1 RAMP13
Figure 3 Ash Storage Area map showing numbered flood coffer dams and direction of floodwater flow during surface flooding events
Printed copies are uncontrolled Please ensure you are referring to the most current version 11
Fp RindtrsPower
4 Supporting Documentation
The following document map outlines the role of the Dust Management Plan in meeting compliance obligations
Governing Legislation
EPA Authorisations Plans Appendices amp Supporting Documents
Environmental Protection Act 1993
EPA Licence 13006
Condition 11 Dust Prevention
Condition 22 Complaints Register
Condition 23 Develop and Implement Closure and Post-Closure Plan
APS Dust Management Plan (this document)
FPP Incident Management System
Environmental Closure and Post Closure Plan ndash Augusta Power Stations (Rev10 25 May 2018)
Appendix A Ash Dam Interim Sealing ndash Proposal 7th November 2016
Appendix B Ash Dam Interim Sealing ndash Risk Assessment 2nd
January 2017
Appendix C Complaint Handling Procedure
Appendix D Fugitive Dust Trigger Action Response Plan (Rev6 3rd
January 2018)
Appendix E Ash Storage Area ndash Extreme Weather Monitoring amp Response Plan (3 March 2017)
App A ndash Detailed Risk Assessments
App B ndash NPS Make Safe Manual
App C ndash PPS Closure Manual
App D ndash Closure amp Care Project Plan
App E ndash Chemical amp Oil Management Plan AppE1 ndash Chemical Manifest amp Removal Scope
App F ndash Demolition Alliance Supporting Plans
App G - APS Dust Management Plan (this document)
Printed copies are uncontrolled Please ensure you are referring to the most current version 12
Fp RindtrsPower
App H ndash Project Risk Assessment Register
Condition 26 Generic Contingency Plan Augusta Power
Station Emergency Response Plan
Condition 27 Pollution Control Refer Ellipse Equipment Register Maintenance
Management System
Environmental Compliance Agreement (2000)
Section 1 Definitions Flinders Power and Interpretations APS Ash Storage
Area End of Life Plan Draft Cost Estimate (14th
February 2000)
Printed copies are uncontrolled Please ensure you are referring to the most current version 13
Fp RindtrsPower
5 Environmental Conditions
The Augusta Power Stations operate according to the Environment Protection Act 1993 (SA)
The EP Act 1993 states the principle of a ldquogeneral environmental dutyrdquo
Part 4mdashGeneral environmental duty 25mdashGeneral environmental duty (1) A person must not undertake an activity that pollutes or might pollute the environment unless the person takes all reasonable and practicable measures to prevent or minimise any resulting environmental harm
The operation of the coal handling and storage system is an authorised activity under an Environmental Authorisation (Licence) under Part 6 of the EP Act provided by the EPA
EPA Notification of Process Changes
According to the requirements of the Environment Protection Act 1993 and Licence Condition 42 the EPA must be notified when there is a proposed change to operating conditions that
bull May increase emissions or alter the nature of pollutants or waste or
bull May increase the risk of environmental harm or
bull Would relocate the point of discharge of pollution or waste
Further in accordance with section 83 of the Act the EPA must be notified when serious or material environmental harm is caused or threatened
FP commits to ensuring compliance with these obligations
Licence Conditions
The Northern and Playford EPA licence (13006) states specifically the activities for which APS undertakes
Licensed Activities
The Licensee(s)
-Flinders Power Holdings GmbH Flinders Labuan (No 1) Ltd Flinders Labuan (No 2) Ltd is (are) authorised to undertake the following activities of environmental significance under Schedule 1 Part A of the Environment Protection Act 1993 (the Act) subject to the conditions of licence set out in the attached pages
1(5)(a) Petroleum storage 2(1) Abrasive blasting 7(3)(C) Crushing grinding or milling works (rock ores or minerals) 7(5) Coal Handling amp storage 8(2)(a) Fuel burning coal or wood
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Fp RindtrsPower
8(7) Discharges to marine or inland waters (heat or antibiotic or chemical water treatments)
8(6a)(a) Desalination plant that discharges wastewater to the marine environment
Licence 13006 (issued 01 January 2015 and as amended 30 August 2017) contains the following condition relating to dust on site
S-9 Dust Prevention
The licensee must
bull Take all reasonable and practicable measures to prevent dust leaving the Premises bull Develop a Dust Management Plan to the satisfaction of the EPA and bull Implement the Dust Management Plan approved in writing by the EPA (or any revised
plan approved in writing by the EPA)
Accordingly Augusta Power Stations operates the former coal stockpile coal handling plant and the Ash Storage Area in such a manner to reduce its effects on the environment including the roads to and from the stockpile and the levees on the ash storage area
The following licence conditions relate to ambient air monitoring
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1 AMBIENT A IR MONITORING (U - 5741
Tlhe Licensee must
31 1 install and operate a continuous meteorological monitoring station al a location within lhe Premises appmved in writing by the EPA
3 1 2 oontinuousily monitor ambient PM1Cl concentrations using an Ecotech Eshysampler Particulate Monitor (or other comparable equipment) at llocatio111s within themiddot Premises approved in writing by the EPA
3 1 3 oontinuousily monitor ambient PM1Cl concentrations using an Ecotech Met One E-Bam Particulate Monitor (or other comparable equipment) at such locations as may be d esignated in writing by the EPA including locations at Lea Memoria l Oval in Port Augusta and at Stirling North
a provide rea l-lttime public access to the monitoring data collected pursuant to ihis clause
b rnotify the EPA in writing of a ny resul ts of monitoring underlaken pursuant to ihis clause w hich indicatemiddot an exceedance of a mbient PM10 concentrations of 50 m icrograms per cubic metre for a 24 hour average period Notification to the EPA must occur within 24 hours of the exceedanoe
c incilude in any notification given pursuant to this clause the actions taken in response to the exceedance in order to mitigatemiddot impacts of PM10 from the Premises on the community
3 1 4 assess and interpret the results of monitoring undertaken pursuanl to th is condit ion to inform the impl ementation of dust mitigation and mana gemenl measures lbased on site-specific trigger valu es set out in the approved Dust Management Plan dated 03 Mardh 2017 or any oobsequent version approved in writing by the EPA
3 1 5 submit to the EPA on a monthly basis a summary of monitoring results for each 24 hour average peniod of ambient PM10 co ncentrations
31 6 upon req uesl of an Authorised Officer provide results of any moniloring undertaken pursuant to ihis condition
NOTES
Condition appticalile to Flinders Power Licence 13006
Fp RindtrsPower
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2 AMBIENT MONITORING A ND REPORTING (U - 6601
The licensee must
321 continuously monilor ambient sulphur dioxide and ambient nilrogen di oxide at a location (or locations) within the Port Augusta township approved in writing by the EPA
322 monitor ambient particulate concentrations (TSP and PM10) using a highshyvolume ai r sampler to determine the 24 hour average at freque111cies and location (or locations) within the Port Augusta or Stirling North township approved in writing by the EPA
323 undertake an investigatio11 to determine the source of any exceede11ce(s ) a11d provide to the EPA the outcomes of lhe i11vestigation if followi11g levels are exceeded at any monitor ing location(s)
a Sulphur dioxide 571 micrograms per cubic metre (detenmi11ed as a one hour average)
b Nitroge11 Dioxide 246 micrograms per cubic metre (determined as a 011e 11our average) a11d
c Ambient particulate oonce11trations (PM10) SCI micrograms per cubic metre (detem1ined as a 24 hour average) and
324 nolify the EPA wilhin seven days of a11y su~ hur dioxide exceedence as measured at the monitoring location(s) referred to in sub-condition 1 and
325 notify themiddot EPA in writing of any results of monitoring undertaken pursua11t to sub-condition 2 which indicate an exceedance of ambient PM10 con centratior1s of SCI micrograms per cubic metre for a 24 hour average period Nolificatio11 to the EPA musl occur within 24 hours of the exceedance
a include in a11y notification given pursuant to this clause the actions taken in response to the exceedancemiddot in order to mitigate impacts of PM10 trom the Premises on the community
326 submil to the EPA on a mo11thly basis a summary of monitoring results for ambient particulate concentrations (TSP and PM10) ambient 11itrogen dioxidemiddot and ambient sulphur dioxide
Fp RindtrsPower
Ambient Dust Monitoring ndash TSP amp PM10
To monitor the ambient air dust levels across the community there are a number of High Volume Air Samplers (HVAS) at strategic locations in Port Augusta and Stirling North There are two types of HVAS a total suspended particulate (TSP) type which samples all of the dust in the air and another for particulate matter 10 microns and smaller in diameter (PM10)
The following sets out the agreed ambient monitoring arrangements (per EPA authorisation of 30 August 2017)
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( middot~
Stir ling North Real-Time PMlO Community Monitor Contingency PMlO High-Volume Monitor
Fp RindtrsPower
Sign in
Operational Monitors
- Three Ecotech E-Sampler Particulate (PM10) Monitors (lsquoProtinus 1000rsquo) have been installed as follows
o The South Operational Monitor located on the southern Ash Storage Area boundary
o The East Operational Monitor located on the eastern Ash Storage Area boundary
o The North Operational Monitor located on the northern boundary of the Polishing Pond at the closest point of site to Port Augusta residences
- The units record real-time data at 5-minute intervals Data is available via the Ecotech online reporting system Eagle The SA EPA has been provided access to the Eagle system
- The system provides real-time trigger alerts to Flinders Power staff by email and SMS Alarm thresholds are defined in the Flinders Power Fugitive Dust Trigger Action and Response Plan
- A summary of data namely the monitoring results for each 24-hour average period of ambient PM10 concentrations will be provided to the EPA on a monthly basis
Real-Time PM10 Community Monitors
- Two Exactus Beta Attenuation Monitors (BAM) have been installed within the nearest identified sensitive human health receptors to the site one each at
o Lea Memorial Oval representing the closest community receptor in the dominant downstream wind direction from the site and
o Stirling North Primary School representing the background concentrations of regional dust conditions It also acts as a secondary community monitor for fugitive dust emissions from the site during south-westerly wind conditions
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Fp RindtrsPower
- Data is collected on a 10-minute average basis Data is available via the online reporting system Eagle The SA EPA has been provided access to the Eagle system
- The system provides real-time trigger alerts to Flinders Power staff by email and SMS Alarm thresholds are defined in the Flinders Power Fugitive Dust Trigger Action and Response Plan
- A summary of data namely the monitoring results for each 24-hour average period of ambient PM10 concentrations will be provided to the EPA on a monthly basis
- The data collected from these monitors will be utilised for community monitoring against the 24-hour ambient particulate concentrations limit (PM10 concentration of 50ugm3) Data from these monitoring stations is made publicly available in real-time at wwwflinderspowercomau
- A trigger alarm (via email) has been set whereby project staff will be alerted by email if there is an exceedance of 50 micrograms per cubic metre of air over a 24-hour average period Flinders will notify the EPA within 24hours should this occur along with an interpretation of the conditions of the day and details of any remedial actions were undertaken at the site
Daily Total Suspended Particulate (TSP) at Lea Memorial Oval
- A high-volume air sampler is located at Lea Memorial Oval and will be run each day to collect TSP data The filter paper will be kept on record for further analysis if required
- Three high-volume air sampler units will be located at the site and will be set to run on timer over weekends and public holiday periods
- The data is indicative of total dust in the vicinity of the monitor
- A summary of data namely the monitoring results for each 24 hour average period of ambient TSP concentrations will be provided to the EPA on a monthly basis
Contingency PM10 and TSP Monitoring Sites
- A contingency PM10 high-volume sampler will be retained at
o The Port Augusta Pigeon Club
o The Port Augusta Tennis Association
o Lea Memorial Oval
o Stirling North Primary School
- A contingency TSP high-volume sampler will be retained at
o Port Augusta Hospital
- These samplers will be operated
- On days of high potential dust (eg days when charge felling of infrastructure occurs)
- If dust levels arising from site increase warranting an increase in the monitoring frequency
- During times of an outage of the real-time monitors at Lea Memorial and Stirling North
- Periodically for calibration purposes
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Fp RindtrsPower
Speciation
One of the challenges in undertaking ambient monitoring for dust within the community is differentiating coal ash and soil particles derived from operational activities as distinct from natural regional dust A key differentiator is wind direction and strength The wind direction and strength for the day of measurement is captured within data reports and used to assist determine whether particles may have derived from the APS site Another method used is colour ndash a filter paper of a red colour may indicate a high contribution of natural regional dust and is particularly noticeable during regional dust storms A filter paper of a grey colour can indicate a contribution from the ash dam however the natural urban dust and wood smoke from domestic heaters tends to also be grey in colour A very dark greyblack tinge can indicate the contribution from coal dust The township of Port Augusta and surrounding communities is located in a desert climate and is subject to frequent dust storms from the arid interior The analysis of historical high ambient dust results against weather events shows a strong correlation with regional conditions
Another key data input is local knowledge On certain days there may be local activities eg development of the Central Oval or mowing at the Lea Memorial Oval) that may be a key contributor to local dust These conditions are noted on the monitoring results database
Along with ambient air dust sampling dust collected from various locations around the site including along the railway and around the Ash Storage Area and town have been sampled to determine the coal and ash content
Other methods to identify the sources of dust collected at monitoring stations are continually investigated
The results of speciation work undertaken by the EPA or Flinders Power will be taken into account and the plan may be updated to reflect any requirements arising from these
In late 2016early 2017 the EPA conducted dust sampling and analysis at a monitoring station located adjacent to the Ash Dam and from a station within the Port Augusta community The results of the sampling including assessment from SA Health are available on httpwwwepasagovaubusiness_and_industryindustry-updatesflinders-power-port-augusta The results of the analysis indicated that whilst the toxicity of the ash particulate is considered low the particle size warrants proactive management of dust from the ash dam
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Fp RindtrsPower
6 Dust Management Plan (DMP)
Plan Stakeholders - Roles and Responsibilities
Positions in Flinders Power have been identified and assessed as having direct influence over parts of the process involved with managing dust on the APS site The responsibilities of such positions are described here to ensure clear and progressive lines of accountability and communication for the purpose of implementing this Plan
Facility Manager APS
bull Approve and support the DMP Ensure ongoing compliance with the DMP bull Authorise the resources required to implement this plan bull Custodian of the lsquoAsh Storage Area Contingency Plan ndash Extreme Weather Monitoring amp
Response Planrsquo ndash Appendix E bull Consult with the Environmental Coordinator to determine appropriate environmental
management strategies and contingency measures required by the DMP bull Install and maintain dust management infrastructure including dust suppression sprays and
cannons bull Report actual and potential environmental incidents bull Ensure sufficient resources (personnel materials and equipment) are available to respond to
high dust events bull Consult with the Environmental Coordinator with respect to the management of contractors
for decommissioning demolition and rehabilitation activities that may affect the integrity and effectiveness of the DMP
bull Maintain dust management infrastructure to ensure ongoing effectiveness and reliability bull Liaise with environmental and allied Regulators bull Notification to Regulators of any adverse dust events bull Notification to Regulators of any material changes to dust management controls and bull Consult and liaise with community stakeholders including proactive notification of
actualpotential dust events
Program Director ndash Flinders Sites
bull DMP document owner bull Review and approve the DMP bull Provide advice andor assistance to the Facility Manager APS to ensure the DMP is
appropriately implemented in the workplace bull Liaise with environmental and allied Regulators bull Ensure the FP website has current and accurate environmental monitoring data and bull Consult and liaise with community stakeholders
Environmental Coordinator
bull Manage stockpile and Ash Storage Area operations in accordance with the provisions of this plan in order to minimise the creation of fugitive dust
bull Provide advice and or assistance to the Facility Manager APS to ensure the DMP is appropriately delivered and followed in the workplace
bull Coordinate sampling of PM10 and TSP high volume samplers bull Ensure dust monitoring equipment is functional and accurate
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Fp RindtrsPower
bull Collation and reporting of environmental monitoring data bull Ensure dust and weather monitoring equipment is functional and accurate bull Collate and deliver daily environmental data including 5-day weather forecast dust risk
rating BOM dust alerts BOM severe weather alerts and previous period environmental monitoring data
bull Ensure proactive and reactive notification mechanisms are in place bull Maintain interpret and communicate dust monitoring results bull Investigate DMP non-conformances or dust quality exceedences bull Determine appropriate management strategies and implement contingency measures in
consultation with the relevant managersupervisor bull Complete all required Internal and External reports required by the DMP bull Ensure the Incident Management System contains the details of incidents and complaints
related to the DMP bull Service and maintain ambient monitoring equipment in accordance with OEM instruction and
the Environmental Monitoring Plan bull Publishing and provision of real-time and monthly data reporting to the EPA and community
and
FP Project Management Team
bull Manage stockpile and Ash Storage Area operations in accordance with the provisions of this plan in order to minimise the creation of fugitive dust
Land Management Team
bull Maintain the Ash Storage Area to reduce dust generation
bull Inspect the Ash Storage Area levees and batters along with site roads and perform dust suppression actions as required
bull Wash down coal dust and spillages from underneath conveyor structures and ash from under the boiler area
bull Maintain site vegetation and
bull Perform any other dust mitigation actions around site as necessary
Alliance Team members (FP McMahons Services and subcontractors)
bull Implement Alliance Plans including Environmental Management Plan bull Ensure appropriate dust management controls are applied for specific demolition activities
eg charge felling bull Undertake operation activities in accordance with relevant Flinders Power policies
procedures management protocols plans statutory licence and contract requirements bull Implement appropriate environmental management measures and bull Report actual and potential environmental incidents to the Facility Manager via their
supervisor
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Fp RindtrsPower
Implementation and Control Actions
The Implementation and Control Actions in the DMP are based on the following specific items
bull Design and use of plant and equipment so as to control and minimise dust bull Development and application of work procedures which reduce the potential for dust bull Use of dust suppression techniques on the Ash Storage Area coal storage and handling
areas and bull Development and implementation of auxiliary techniques to monitor weather conditions
affecting site in particular the Ash Storage Area in order to implement the Trigger Action Response Plan (TARP)
The following Tables (1 to 5) document the potential coal air qualitydust impacts with associated control plans
This has been developed by utilising the 2014 Aspects and Impacts Register as the basis to identify the locations or activities with the highest risk of dust generation on the site and updating these to reflect the requirements during closure activities
The locationsactivities have been ranked according to the highest residual risk for the environmental aspects contained in each
Table 5 lsquoAspects and Control Action 5 Demolition Activitiesrsquo specifically references the Alliance Project Risk Register which relates to dust control for demolition activities
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Rindmlower
Table 1 Aspect and Control Action 1 Coal Stockpile Operations
The following action plan relates to the revegetation of the former stockpile area
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
FPP Project
Management Team
Civil works on
stockpile pad
Preparation for
revegetation
Coal dust amp
wind blown
soil
Air quality EPP (Air Quality) Major Likely Extreme-8 Dust Management Plan Access
to area during low wind speeds
Water truck
Irrigation water
sprinkler system
Minor Possible Mod-5 wind
directionspeed
ambient monitoring
ad-hoc dust
monitoring
Operator
training
Closure period
23 Environmental Services Coal stockpile
management
Coal dust Air quality EPP (Air Quality) Major Likely Extreme-8 Dust Management Plan
Sprays Water truck
Project Group Minor Unlikely Low-4 wind
speeddirection
ambient monitoring
Operator
awareness
General
conditions
Inherent Risk Operational Controls
Augusta Power Stations Environmental Aspects and Impacts Register
General Control Matrix
Area Potential impact Potential contaminants Rehabilitation Controls Responsible personnel
Coal Stockpile and Tower Pad Heavy machinery generating dust while operating on or near the stockpile where coal is present during revegetation activities and prior to vegetation becoming established
Air qualitydust movement off site due to wind speed and direction
Coal dust soil and surface dust Capping and revegetation of the former coal stockpile and tower pad to prevent future potential fugitive dust emissions It is proposed to carry on with site civil works to cap the coal stockpile and tower pad areas and follow behind with seeding with native seeds at a rate of 15kg per Ha consistent with the Ash Storage area The coal stockpile and tower pad area has the advantage of the ability to irrigate which is expected to facilitate germination and growth of the native vegetation
FPP Project Management Team
Surface ripping during low winds (lt35kmhr) Cease work when wind speeds increase (gt35kmhr) Use of water truck to wet surface Allowing surface to harden Installation of irrigation system Revegetation of pad surface Daily monitoring by Project Manager and Land Management Team Additional revegetation as required
FPP Project Management Team
Use of dust suppression chemicals on open areas as required
Environmental Coordinator
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Rindmlower
Daily weather reports for wind speed amp direction forecasting and provide advice to team
Environmental Coordinator
Manually operate the sprinkler systems on forecasted strong wind conditions prior to forecasted conditions Install a remote activation system to allow operation in unforeseen or non-forecasted events quickly
Environmental CoordinatorFacility Manager
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Rindmlower
Augusta Power St ations Environmental Aspects and Impacts Register Ref No Responsible Activity Location Enviro Aspect Enviro Impact Legal amp other lnheren t Risk Operat ional Controls Residual Risk Monito ring Training Note
Oep tBronchSection requirements
(cause) (effect) Consequence Ukelihood Roting Primary Support Consequence Likelihood Rating
5 Environmental Services Ash storage dam Oust (Ash) Air quality EPP (Air Qua I ity) M ajor Almost Edreme-9 Oust Management Plan TARP APS Ash St orage Major Unlikely High-6 daily in spections
management emissions certain dust suppr ession chemical Dam Insp ection ambi ent monitoring
applicat ion t o surface and Check Ii st JSP234 Ash 3 mont hly
levees rea l -t ime PM10 disposal pipe laying inspections
mentoring at ash dam and JSP235 V ehicle
w it hi n com munity t ext alerts operation in Ash
BOM moni t oring of weather Pond area
prediction s
212 Environmental Services Ash sto rage dam Oust Air quality EPP (Air Qua I ity) M ajor Almost Extreme-9 Dust Managem ent Plan TARP APS Ash St orage Major Unlikely High-6 daily in spections
management (Red sand) certain dust suppr ession chemical Dam Inspection ambient monitoring
emissions appl ication t o surface and Checklist JSP235 3 mont hly
levees t rained vehicle Vehicle operat ion in inspections
operators real -t i me PM10 Ash Po nd area
mentoring at ash dam and
wit hin com munity t ext alerts
BOM moni t oring of weather
predictions
Table 2 Aspects and Control Action 2 Ash Storage Area Management
The following action plan relates to the management of the Ash Storage Area (ASA)
General Control Matrix
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Ash Storage Area Generation of dust from the main surface of the Ash Storage Area including borrow pits on the south side
Surface dust from main pipework outfall area
Generation of ash dust from the inside of the western levee areas
Generation of ash dust from the inside of the Eastern levee areas
Southern levee surfaces and batters including areas where wind-blown ash has settled
Ash dust particles Use of dust suppression treatment on the surface of the ASA ndash Refer Appendix A and B
Trigger Action Response Plan (Refer to section 7)
Use of water carts and additional dust suppression on banks and roadways as required
Daily visual inspection and remedial works as required
Facility Manager APS Environmental Coordinator McMahon Services
Facility Manager
Land Management Team
Environmental Coordinator
Ash Storage Area ndash Implementation of long-term rehabilitation plan
Generation of red dust from the borrow pit during excavation and haulage
Generation of surface red dust from haul roads tofrom the borrow pit and the Ash Storage Area
Soil lsquored dustrsquo particles Monitoring of dust generation and use of dust suppression measures during the implementation of the long-term rehabilitation plan for the Ash Storage Area Refer to Appendix D Fugitive Dust Trigger Action Response Plan (Rev 4 29th May 2017)
Facility Manager APS
McMahon Services
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Rindmlower
Generation of red dust from topsoil fingers and ash dam surface after spreading
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Rindmlower
Table 3 Aspects and Control Action 3 Coal Conveyor System and General Site
The following action plan relates to the management of dust around the conveyor system and general site
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
62 Flinders Project
Services
Coal bin storage Coal dust Air quality EPP (Air Quality) Moderate Possible High-6 Enclosure wash down of built
up dust
Maintenance
routines
Moderate Rare Mod-4 ambient monitoring
maintenance
records
Augusta Power Stations Environmental Aspects and Impacts Register Inherent Risk Operational Controls
General Control Matrix
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Conveyors Residual coal dust generation from conveyors and bins around the station
Coal dust Enclosed structures Dust wash down (completed during Make Safe period) Defect hazard reporting Routine site inspection
Environmental Coordinator
Open areas Generation of dust from surfaces such as underneath conveyors and towers where coal has spilled or dust settled
Coal dust and surface dust Wash down with water hose when required
Land Management Coordinator
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Rindmlower
Demolition Control Actions
Table 4 Aspects and Control Action 4 Site Roads (General Conditions)
The following action plan relates to the management of dust roadways around site
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
21 Environmental Services Road traffic Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Moderate Possible High-6 Speed limits on-site
Routine road washing
Minor Unlikely Low-4 Site inspections
Augusta Power Stations Environmental Aspects and Impacts Register Inherent Risk Operational Controls
General Control Matrix
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Roads Generation of dust from road surfaces Coal dust and surface dust Water spray with water truck Street sweeper (hired as required)
McMahons Facility Manager APS
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set Issue or lmpr-ovement Opportunity
11 ~~ ca131gte cf ~bUcture Oim ~ e 10 amp-ErceiJve re~i2 w eitber conditkln - wlnI erivttinmenI ~J du1
RTrrc of~ttulnJ lncre ~ ~awl of _palttc ri lziiczbulltcn
btEen e-fl)C~lnI erth raunai_ ~s O swonm b ene itrJ [PlJrl rrto-erem m itiin aleelil on fe O=flier3lfnD ch3t COJll)any brffldF ~-
Inherent Risk Rating
llkeoll100ltI
2 Ml lOlt C ~ lY
RaiJno amp Pr1011ty
current ~ roaoh (Exktlng ContlOJGJ
W alH ih31 be utlJetl tor ttte p~e af dli~t 1~~b11 ltIUITQ demal tlbII iC1Mt Wta -r G ~ ~a~ middotbullbullth k lhae upPfe~rlg du1 d-rQ worts~ w ~ ~ng IL 3ter3 IMiCn ~Ucn XWrty
COfflffleflCli W31er mNKlflii lufft lh1D 13Qe
exayatcn [FC1 =so) bull~ )kg durtng ClemaaJOlii a tlYfty P~tm cwem enl ~ red wJle~ pa10 eci Jlfe-er elCe~N e OBl=r1tion ofd-11-t tf lNllittd w zatetmiddot airt rutJ~etl ID 1tQgtff1iii e1l gniund
~ 1 iRedu-ced lllcfilrty ctmng high WlJd~ Ou~ mcdtortlvl ~tQ 1slu-S i1od ete-cronlc monlmn
Rlsidu11 Risk Rating
Rallng amp Pr1ltlrlly
Modun l i
Proposld Mitigation o f Risk Exposure lmp-ovem1mt Aciions
Rkk Reduotlon Trbull abnbull nil o r Aa ef lmp(OWbullmefll
ov-edAoifon
Aotton owner
Rindmlower
T arglt Risk Rating
LllellhOOd
Table 5 Aspects and Control Action 5 Demolition Activities
The following action plan relates to the management of dust during specific demolition activities
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
McMahons Road traffic during
demolition activities
removal of material
off site
Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Moderate Possible High-6 Pre-task JSEA Site vehicle
speed limits
Routine road washing with
water truck
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Minor Unlikely Low-4 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons General Demolition
Activities
Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
Water areas with water hoses
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons General Civil Works Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
Water areas with water hoses
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons Stack Felling Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
Industrial mist fans
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons Bin Felling Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
Inherent Risk Operational Controls
Augusta Power Stations - Demolition Environmental Aspects and Impacts
Alliance Project Risk Assessment Register ndash Dust from demolition activities ndash extract
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Rindmlower
General Control Matrix (for Table 5 Aspects and Control Action 5 Demolition Activities)
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Stack Felling Generation of dust Coal dust ash and surface dust Vehicle speed limits Water shall be utilised for the purpose
McMahons Facility Manager APS
of dust suppression during demolition
Coal Bin Felling Generation of dust Coal dust ash and surface dust activity via air misters spotters with McMahons milk hoses suppressing dust during Facility Manager APS works as well as pre-wetting materials
General demolition activities Generation of dust Coal dust ash and surface dust before demolition activity commences McMahons water cannons built into large Facility Manager APS
General civil works Generation of dust Coal dust ash and surface dust
excavators spraying during demolition activity Plant movement minimised where
McMahons Facility Manager APS
Site traffic for demolition material removal
Generation of dust Coal dust ash and surface dust
possible to prevent excessive generation of dust If required water cart utilised to suppress seal ground area Reduced activity during high winds Dust monitoring using visual and electronic monitors
McMahons Facility Manager APS
Community and stakeholder engagement and information sharing of demolition events with potential for significant dust generation which may have an adverse effect on the community
Reclaim transport and use of ash from Generation of dust Ash dust Refer to task-specific JSEA developed McMahons the Ash Storage Area for demolition for the activity (Appendix F) Facility Manager APS activities (eg backfill of voids)
Reclaim transport and use of soil from Generation of dust Soil (red) dust McMahons the on-site borrow pit for demolition Facility Manager APS activities (eg backfill of voids topdressing working base for excavator)
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flinderslower
7 Ash Storage Area ndash Dust Management
The current approach for dust management on the Ash Storage Area (ASA) utilises regional weather predictions of wind speed and direction to inform activity planning and the implementation of dust management measures on the ASA
Historically infrequent events have occurred whereby rainfall on the ASA during the spring and summer months has caused the salt crust on the surface created by surface seawaterash slurry flooding to deteriorate and allow ash to become airborne in strong winds
Whole of ASA Dust Suppression Treatment
Conditions on the ASA since closure has shown that the normal dust suppression activities used (coffer dam building and surface flooding) have damaged the ASA surface allowing fine ash to be lifted from the surface A review of the dust suppression methods used on the ASA through August ndash October 2016 determined that the optimal method of dust suppression was to seal the whole of the ASA surface with a dust suppression treatment
An initial area of 15Ha in the middle of the ASA was sealed with dust suppression chemical in August 2016 which was applied by crop duster airplane The results of the sealing of this initial area were positive and after severe weather events during September and October 2016 causing large ash lift off events from the remainder of the ASA and dangerous conditions for machinery on the ASA levee banks it was decided to investigate the sealing of the whole of the main ASA
A risk assessment and proposal for the sealing of the ASA was developed in collaboration with the EPA and provided for review on the 21st October 2016 Approvals were provided and the project was completed on 22nd November 2016
Severe storm activity in the period 24-28th December 2016 impacted the dust suppressant seal which rapidly dried and led to a dust event on the 1st and 2nd January 2017
The use of a dust suppressant seal is an interim measure prior to the completion of the full rehabilitation program
Trigger Action Response Plan ndash Ash Storage Area
A Trigger Action Response Plan (TARP ndash refer Appendix D) has been developed incorporating the ldquostoplightrsquo performance monitoring tool and visual site inspections as the triggers The TARP will hold two key functions
- To monitor sealant condition and determine if further treatment is required to control ash dust generation from the Ash Storage Area and
- To monitor the generation of lsquored dustrsquo during the completion of the long term rehabilitation plan including soil trafficking emplacement and throughout the germination period of vegetation
A newly installed ambient dust monitoring system is also used to inform site staff of ldquoreal timerdquo airborne dust levels around the ASA and in two community monitoring sites These ldquoreal timerdquo levels
Printed copies are uncontrolled Please ensure you are referring to the most current version 32
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are used in conjunction with site visual observations to determine escalating trigger points within the TARP
The mitigation responses are drawn from the Aspect Control Actions appropriate for the identified triggers The site Incident Management System (IMS) is used as the action assignment and data recording tool
The TARP has been communicated to the appropriate site stakeholders to ensure appropriate actions are taken to mitigate dust from specific identified areasactivities on site
The Ash Storage Area has been identified as the key area for dust management and a three tiered process using wind forecasts has been developed with a daily weather forecast utilising a Red-Yellow-Green ldquostoplightrdquo type format Daily weather reports are reviewed for wind speeds forecasted to be over 35kmh in the proceeding days and a weather forecast chart is used to identify times of risk of generating dust
The chart below shows an example of the weather forecast prepared and communicated daily to site leaders
Figure 4 Example lsquostoplightrsquo TARP system for weather warning
The green band to show when potentially dust generating activities with heavy plant can take place A yellow band indicates when caution is required and a red band indicates times where it is likely that site activities may need to cease
The daily report is supplemented with the predicted weather conditions (sourced from weatherzonepro) for the next 6 day forecast period An example is provided in Figure 5 below
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flinderslower
Vlincl Speed (kph) kmh) vs Vf111cl Dir kmh) I Temperature (degC) vs Jgtreap Probab1l1tv () Last updated Tue 24 Jan 07 OD
AAAAAAAAAAA AAAAAAAAAA AAAAAAA gt-~A AA AA4AA ~~~AAA t-C DATE 24 )(Ill Tue TIME 0730
M ~~
VJn 1 c--ip(I 1_k(lhJ 1 ) 4 t 21 ~-5
WinDir A 351kmh v7
2_Jan ~ n
Figure 5 Example six-day predicted weather forecast
Further Flinders has access to the Bureau of Meteorology dust warning system which is checked daily and alerts issued with the daily environmental report An example dust warning is provided in Figure 6 below
Printed copies are uncontrolled Please ensure you are referring to the most current version 34
flinderslower
Local Time 1230 COST (dar l ) Base Da~middot 2017 02 01
Figure 6 Example BOM dust warning
Preparation for extreme weather events is documented in Appendix E Ash Storage Area ndash Extreme Weather Monitoring amp Response Plan
On high wind speed days the following example precautions will be undertaken where appropriate Full details are provided in the TARP (Appendix D)
bull Ensure safety of site staff and visitors
bull Monitor wind speeds using Bureau of Meteorology data
bull Cease work activities on the Ash Storage Area
bull Surface inspections to determine if ash is blowing off
bull Targeted action for high risk accessible areas and
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flinderslower
bull Notify stakeholders and the community if required (Port Augusta City Council community and SA EPA) in accordance with Section 5 of the APS Environmental Closure amp Post-Closure Plan
When a community complaint regarding dust is received by the company activities on the Ash Storage Area will be reviewed and ceased if deemed appropriate by the Flinders Power Facility Manager or delegate
Printed copies are uncontrolled Please ensure you are referring to the most current version 36
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8 Former Coal Stockpile Areandash Dust Management
The NPS Coal Stockpile pad has been rehabilitated and revegetation of the surface is in progress
Whilst the vegetation is established the existing Coal Stockpile TARP will be followed as below
Flinders Power (FP) have made attempts to revegetate the existing former coal stockpile area in 2016 through to 2018 directly into coal however only relatively minor vegetation has established A site inspection conducted by Succession Ecology in August 2017 noted that revegetation over time will be successful however an alternate seed blend may expedite the process Additional seed was sown in September 2017 A lack of rainfall over the 201718 period has impaired germination
In order to expedite the timeframes associated with arid lands revegetation projects Flinders now propose to carry on with civil capping works currently being undertaken across the ash storage area to cap the approximate 15 Ha former coal stockpile and tower pad areas The existing irrigation infrastructure will be retained for future dust management and potentially for irrigation to initiate germination
The soil capping of this area is designed to mitigate fugitive coal dust emissions Additionally the borrow pit material will facilitate the revegetation of this area in order to establish a self-sustaining environment
Succession Ecology (SE) has inspected the area and is supportive of the capping
The soil capping will be seeded with a previously approved native seed (wet) mix which is salt tolerant as advised by SE due to the evident salinity levels in the area
Vegetation Monitoring will continue to occur
The irrigation will be mainly used for dust suppression but could be used for kicking off germination depending on what rains we receive and what success of germination we have from the rain The irrigation will remain operational in the case it may be required
FP has received endorsement of the approach from Kirsa Environmental
Timing for approval of capping of the former coal stockpile and tower pad area is critical as it is proposed to follow on from current site civil capping works into the proposed capping works associated with the former coal stockpile and tower pad areas
It is intended that the current fleet of civil plant will be utilised to complete the proposed capping scope of works
Trigger Action Response Plan ndashStockpile Revegetation
A (TARP) has been developed for revegetation work on the stockpile incorporating the ldquostoplightrsquo performance monitoring tool and visual site inspections as triggers
Stockpile revegetation has been identified as a key area for dust management and the stoplightrdquo Red-Yellow-Green weather forecast will also be used during activities on the stockpile pad To facilitate and expedite the revegetation of the former coal stockpile and tower pad areas it is proposed to cap the area using material from the existing borrow pit
The lsquostoplightrsquo format will use a Green band to show when potentially dust generating activities with heavy plant can take place according to the following weather conditions
Printed copies are uncontrolled Please ensure you are referring to the most current version 37
flinderslower
Any activities during a wind speed below 20kph (6 ms or 11 knots) from the SOUTH EAST to SOUTH WEST
A Yellow band will show the hours when potentially dust generating activities with heavy plant can take place according to the following
Any activities during a wind speed over 20kph (6 ms or 11 knots) from any wind direction other than from the SOUTH EAST to SOUTH WEST
A Red band will show the hours when potentially dust generating activities with heavy plant cannot take place
Any movement activities during a wind speed over 20kph (6 ms or 11 knots) from the SOUTH EAST to SOUTH WEST
Stockpile inactiveRevegetation Program
Proactive measures will be undertaken when strong wind conditions are forecasted by manually operating the former coal stockpile sprinkler system to dampen the area to prevent dust lift A remote operating system will be installed to provide a quick response to any non-forecasted or unforeseen weather events
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flinderslower
9 Dust Monitoring and Evaluation
Ongoing dust monitoring by either visual evaluation of ashcoalsoil dust generation on site or by interpretation of the results from the dust monitoring network will determine if dust mitigation measures are effective or additional measures are required
Groups responsible for inspections are described in the action tables and TARP Text and email alerts are automatically sent to a nominated group of responsible persons when dust wind speed and wind direction thresholds are exceeded These mechanisms are outlined in the TARP
The monitoring of real-time PM10 data from the boundary monitors of the Ash Storage Area is presented on a screen within the Flinders Power office on site and monitored by both Flinders Power and McMahon Services personnel A summary of data is provided in the daily environmental report
Access to real-time dust monitoring information for the Ash Storage Area and community monitoring stations is made available to the EPA A summary of real-time data for the community PM10 monitors is presented on the Flinders Power website and made openly available to the community
The monitoring of real-time PM10 data from Stirling North and Lea Memorial Oval is verified daily (M-F) by the Environmental Coordinator
The monitoring of ambient high-volume filter papers within the Port Augusta community is conducted daily by the site Environmental Coordinator
Printed copies are uncontrolled Please ensure you are referring to the most current version 39
flinderslower
10 Community and Stakeholder Engagement
Community and stakeholder engagement is detailed in the APS Closure and Post Closure Environmental Plan
A summary of these mechanisms are outlined below
Mechanism Target Group Posted on FP
website
Frequency Notes
Residents PACC MP Media EPA NRM Board
Special-interest groups
Weekly progress report
X X X No Weekly A summary of activities at the site including demolition and ash dam rehabilitation
Face-to-Face meetings site visits
X NA Monthly Monthly meetings with PACC CEO and Mayor when available
Annual environmental presentation
X Yes Annual Annual presentation to PACC ndash open public forum
Media release Infomercials
X X Yes Ad-hoc Strategic media release eg felling of PPS A station stack
Works Progress Fact Sheet
X X X X Yes Monthly Quarterly
A monthly progress update Letter drop
Focus topic fact sheet
X X X X X X X Yes Ad-hoc A brochure on a particular topic (eg ash dam Playford A building demolition) Letter drop
Flinders Power website
X X X X X X X Yes Regular updates
Information portal Links to FP YouTube account FP contact details
Flinders Power hotline amp email
X X X Yes NA All community complaints are logged
Special-interest presentations
X NA On request
Presentations or site visits on request (eg Rotary schools)
Community site visits
X NA On request
Actively invite community members
Community forum
X X Yes Monthly Group now established
Printed copies are uncontrolled Please ensure you are referring to the most current version 40
flinderslower
reference group
Community X Yes TBA May include site information tours days
SMS distribution list
X X X X X X X Yes Ad-hoc Rapid notification of dust incidents
Flinders power is also performing community sentiment monitoring using the following
- Daily media monitoring ndash print TV radio and online
- Complaints hotline amp email ndash central recording
- Facebook ndash linked with community forums
- FP personnel embedded within the community
- Feedback from SA Government Regulators
- Close relationships with PACC MPrsquos local media and community leaders
101 Complaint Management
Community complaints regarding nuisance coal dust and ash are to be dealt with according to the Complaint Handling Procedure contained in Appendix C
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flinderslower
References
Aurecon 2010 Alinta Northern Power Station Stockpile Dust Management Flinders Power Report ref 206865-001-01 9 September 2010
Environment Protection Act 1993 (SA)
EPA Licence 13006 (Northern and Playford Power Station)
EPA Licence 13011 (Leigh Creek to Port Augusta Railway Operations)
Flinders Power Environment amp Community Policy (June 2016)
Printed copies are uncontrolled Please ensure you are referring to the most current version 42
flinderslower
Appendices
Appendix A Ash Dam Interim Sealing ndash Proposal 7th November 2016
Appendix B Ash Dam Interim Sealing ndash Risk Assessment 2nd st January 2017
Appendix C Complaint Handling Procedure
Appendix D Fugitive Dust Trigger Action Response Plan (Rev 6 3rd January 2018)
Appendix E Ash Storage Area ndash Extreme Weather Monitoring amp Response Plan (Rev 0 3rd March 2017)
Appendix F JSEA for the excavation transport and use of soil and ash from the borrow pit or Ash Storage Area for demolition activities
Printed copies are uncontrolled Please ensure you are referring to the most current version 43
flinderslower
Appendix C
Complaint Handling Procedure
All complaints received by Flinders Power employees including security are handled according to the following steps
All complaint receivers are required to
bull Collect all details from the complainant (time location concerns)
bull Repeat back and confirm details with the complainant
bull Obtain complainants contact details
bull Advise relevant Supervisor immediately
The Facility Manager is to be advised as soon as practicable of receipt of the complaint
The complainant will be contacted and an investigation of the complaint initiated as soon as practicable of the receipt of the complaint The investigation typically may include
- A visit to the complainant to
o Observe local dust conditions
o Discuss the event with the complainant and
o Taking of samples
- A review of site data from the time of the incident
- A review of meteorological data
Following the investigation the complainant is to receive a written response outlining the investigation procedure and findings If requested the findings of the investigation will be explained and discussed with the complainant in person
Details of the complaint the investigation management actions implemented and follow up is recorded within the FP Incident Management System
All media enquiries are to be managed through the approved Flinders Power Media Protocols
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- Blank Page
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-
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
U l
Planned t
Completion Date i m
Consequence Likelihood Rating amp Priority
40 Environmental
Services
Annual community consultation post operation
Community perception of organisation
Non compliance Nil Improper process in
place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar E ective 3 Moderate E Unlikely Low 21
41 Environmental
Services
Potable water use decommissioningdemo lition
Excessive potable water use
Resource waste Water overuse financial cost increased
risk of Gulf contamination
Resource 3 Moderate E Unlikely Low 21 Re-location of services prior to demolition E ective 4 Minor E Unlikely Low 23
42 Operations Tech
Support
Environmental monitoring instrumentation calibration (decommissioningdem olition)
Environmental monitoring
Non compliance
Nil Improper process in place
Procedural 3 Moderate D Possible Medium 16
Calibration program and records Maintenance routines (applied to ambient
monitoring) E ective 3 Moderate E Unlikely Low 21
46 Post production coal conveyors
Coal conveyors Coal dust (conveyorstransfe rs)
Air quality Personnel exposure
limit exceedence public nuisance complaints
enforcement action
Environmental 3 Moderate C Likely High 11 wash down of built up dust E ective 5 Insignificant E Unlikely Low 25
47 Post production
coal bins
Coal bin storage Coal dust Air quality Personnel exposure
limit exceedence public nuisance complaints
enforcement action
Environmental 3 Moderate D Possible Medium 16 Wash down of built up dust ambient
monitoring maintenance records E ective 3 Moderate E Unlikely Low 21
48 Fireexplosion Air quality
Coal dust explosion Fire 2 Major D Possible High 12
Review risk assessments for decommissioningdemolition Emergency
Response Plan IMS E ective 3 Moderate E Unlikely Low 21
49 APS post production
Coal plant washdown Marine discharge Water quality Contaminated water
entering the Gulf damage to Gulf waters
enforcement action
Environmental 4 Minor D Possible Low 20
Containment of washwater JSP 107 Bunker Washing water monitoring
programme E ective 4 Minor E Unlikely Low 23
50 APS post production
Decommissioningdem olition
Oil spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21
Contaminated drain system S17 Oil Spill Procedure review and enhance containment options Emergency
Response Plan IMS Maintenance records
E ective 4 Minor E Unlikely Low 23
51 APS post production
Decommissioningdem olition
Fuel oil spillage (eg gun malfunction)
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate D Possible Medium 16
Operating controls S17 Oil Spill procedure contaminated drains Emergency Response Plan IMS
E ective 3 Moderate E Unlikely Low 21
52 APS post
production
Decommissioningdem olition
Seawater flow Ecological impact (eg fauna loss)
ReductionIncrease in number amp abundance of
local marine species Environmental 3 Moderate E Unlikely Low 21
Review options for cooling water channels (eg breach wall)
E ective 3 Moderate E Unlikely Low 21
53 APS post
production
Decommissioningdem olition
Contamination of condenser cooling water
Ecological impact Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 2 Major E Unlikely Medium 18 Review options for condensers (post
production) visual E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
54 APS post
production
Boiler water drainage Treated water discharge
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 4 Minor D Possible Low 20 drainage into Ash pit Operating controls
ambient water monitoring programme E ective 4 Minor E Unlikely Low 23
55 APS post
production
Decommissioningdem olition
Hydrogen gas leakage
Air quality fire hazard Explosion personnel
exposure Fire 2 Major E Unlikely Medium 18
Evacuation of hydrogen Maintenance routines Emergency Response Plan
Crisis Management Plan IMS hydrogen monitoring
E ective 2 Major E Unlikely Medium 18
56 APS post
production
Auxiliary boiler operation decommissioningdemo lition
Spillage of dosed water
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21 Operating controls containment
Maintenance routines E ective 3 Moderate E Unlikely Low 21
57 APS post
production
Fuel oil removal Fuel oil spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21
Contaminated drains Operating controls S17 Oil Spill procedure Emergency
Response Plan IMS E ective 3 Moderate E Unlikely Low 21
58 APS post
production
Emergency diesel generators decommissioningdemo lition
Diesel spillage (loading and operational)
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21
Bunding Operating controls S17 Oil Spill procedure tested transfer hoses
Maintenance routines Emergency Response Plan IMS
E ective 3 Moderate E Unlikely Low 21
59 APS post
production
Fly ashbottom ash handling systems decommissioningdemo lition
Spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 2 Major E Unlikely Medium 18 Flush ash systems to ash storage area
water monitoring programme E ective 4 Minor E Unlikely Low 23
60 APS post
production
Fly ash re-use storage and handling area
Spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 4 Minor D Possible Low 20 Empty and washdown plant Discharge to
containment area E ective 4 Minor E Unlikely Low 23
61 APS post
production
Decommissioningdem olition
Contamination of flow to ash storage pond (eg oil)
Water quality Spill entering ash disposal system discharge to Gulf
waters enforcement action
Environmental 3 Moderate D Possible Medium 16
Contaminated drains oil containment oil handling ash pond controls Ash storage dam inspections Emergency Response
Plan IMS inspection records
E ective 4 Minor E Unlikely Low 23
62 APS post
production
Machine degreasingwashdown
Wastewater discharge
Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 3 Moderate C Likely High 11
Bunded washbays JSP104 Degreasing JSP102 Steam Cleaner Operation
contaminated drain system contained degreasers Quick break degreaser oil
separator S311 Storage Handling and Disposal of solvents etc water monitoring
programme
E ective 4 Minor E Unlikely Low 23
63 APS post
production Air emissions (volatile)
Air quality fire hazard
Fire personnel exposure
Fire 3 Moderate E Unlikely Low 21 Procedures extraction systems E ective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
U l
Planned t
Completion Date i m
Consequence Likelihood Rating amp Priority
64 APS post
production
Oil removal Oil spillage Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 3 Moderate C Likely High 11
Station Instructions S17 Oil Spill procedure S315 Storage Handling and
Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil treatment plant Contaminated drain system Emergency Response Plan IMS water monitoring
programme
E ective 4 Minor E Unlikely Low 23
65 APS post
production
Waste oil storage Oil spillage Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 3 Moderate C Likely High 11
Bunded storage S17 Oil Spill procedure S315 Storage Handling and Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil treatment plant Emergency
Response Plan IMS water monitoring programme
E ective 3 Moderate E Unlikely Low 21
66 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major E Unlikely Medium 18 Bunded storage Emergency Response
Plan Spill response IMS E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
67 APS post
production
Fire Air quality Fire personnel
exposure Fire 3 Moderate E Unlikely Low 21
Storage controls (minimise ignition sources) Emergency Response Plan
Crisis Management Plan IMS E ective 3 Moderate E Unlikely Low 21
68 APS post
production
Discharges into the marine environment
Contaminated drains SPELS
Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 2 Major D Possible High 12
Chemical oil and fuel bunding oil separation maintenance of SPEL tanks
stormwater segregation review of routine to inspect SPEL tanks Emergency
Response Plan IMS water monitoring programme site inspections SPEL
cleanout routines
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
69 APS post
production
Oil -filled electrical equipment decommissioning and removal
Leakage Water quality
Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 2 Major E Unlikely Medium 18
Bunding S17 Oil Spill procedure JSP271 NPS Step-up Unit transformer amp line
isolator maintenance Emergency Response Plan Crisis Management Plan IMS monitoring of oil properties (eg PCB
content)
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
70 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major E Unlikely Medium 18 Containment of oil-filled equipment
Emergency Response Plan E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
71 APS post
production
Fire explosion Air quality
Fire personnel exposure
Fire 2 Major E Unlikely Medium 18 Permits containment E ective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
72 APS post
production
Battery Rooms decommissioning and removal
Acid spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 4 Minor D Possible Low 20
Bunded JSP052 Battery maintenance JSP315 Battery Bank Replacement S31
Chemwatch Maintenance routines Emergency Response Plan IMS
E ective 4 Minor E Unlikely Low 23
73 APS post
production
Fireexplosion (gas generation)
Air quality Fire personnel
exposure Fire 3 Moderate E Unlikely Low 21
Extraction system Maintenance routines Emergency Response Plan IMS
E ective 4 Minor E Unlikely Low 23
74 APS post
production
Fire pumps decommissioning
Fueloil spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 4 Minor E Unlikely Low 23 S17 Oil Spill procedure Emergency
Response Plan IMS E ective 4 Minor E Unlikely Low 23
75 APS post
production
WorkshopsGarage decommissioning and demolition
Removal and disposal of dangerous substances spills
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21
Bunded storage S31 Chemwatch Emergency Response Plan IMS Waste disposal documentation (WTCsWTFs)
E ective 4 Minor E Unlikely Low 23
76 APS post
production
Removal of dangerous substances incompatible storage fire
Air quality Personnel exposure
limit exceedence public nuisance complaints
enforcement action
Environmental 3 Moderate E Unlikely Low 21
Segregation of dangerous substances S31 Chemwatch S311 Storage
Handling and Disposal of solvents etc Emergency Response Plan IMS
E ective 3 Moderate E Unlikely Low 21
77 APS post
production
Disposal of oilycontaminated rags
Contaminated soil Soilgroundwater contamination clean up
actions enforcement actions
Environmental 4 Minor E Unlikely Low 23 Segregation for disposal E ective 5 Insignificant E Unlikely Low 25
78 APS post
production
Grit blasting decommissioning and demolition
particulate emissions
Air quality water quality
Air soil amp groundwater contamination clean up
actions enforcement actions
Environmental 3 Moderate D Possible Medium 16
Removal and disposal of grit washdown prior to demolition Containment of
washdown water E ective 4 Minor E Unlikely Low 23
79 APS post
production
Demolition general Lead emissions (from lead-based paints)
Personnel exposure limit exceedence public
nuisance complaints enforcement action
Environmental 3 Moderate E Unlikely Low 21
lead paint testing dust control processes Maintenance routines lead in paint testing
(as required) and recorded E ective 4 Minor E Unlikely Low 23
80 APS post
production
Refrigerationair conditioning servicing decommissioning (as required)
Release of ozone depleting substances
Depletion of Ozone layer
Environmental harm regulatory enforcement
Environmental 3 Moderate D Possible Medium 16
ARC licensed operators ozone-depleting gas reclaim for decommissioned equipment Audits based on ARC
requirements JSP372 Air Conditioner Maintenance Records of ozone-depleting
substances reclaim etc
E ective 3 Moderate E Unlikely Low 21
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
U l t i m
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
Planned Completion Date
Consequence Likelihood Rating amp Priority
Sewerage system Sewage overflow Water quality Spill entering onsite
81 APS post
production
relocation of services (caused by decommissioning and
drains system discharge to Gulf
waters enforcement Environmental 4 Minor D Possible Low 20
Response to sewer chokes JSP028 Sewage Pit pump and control repairs
Emergency Response Plan IMS E ective 4 Minor E Unlikely Low 23
demolition) action
bullmiddotmiddot - ~- alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 2 Unit 3 Area as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates
records ffective 4 Minor E Unlikely Low 23
18 Heath
Safety amp Security
Land management landscaping (post decommissionin gdemolition)
Maintaining amp improving landscaping
Improved site amenity
Poor visual amenity soil erosion dust
Environmental Final landforms and potential
landscaping plan ffective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections ffective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissionin gdemolition
Dust emissions Air quality Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust
suppressant if required) Hi VolDustTrak dust monitoring on site
boundary
ffective 4 Minor E Unlikely Low 23
23 Environmen tal Services
Environmental Compliance decommissionin gdemolition
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting
environmental checklist for decommissioningdemolition
Surrender of EPA Licence Site Environmental Awareness Induction S4G29 Hazard
Inspections update induction material for
decommissioningdemolition Water Sampling Program stack and
ambient monitoring reporting on EMP and reporting to EPA
ffective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environmen tal Services
Site environmental performance monitoring decommissionin gdemolition
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS
Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during decommissioningdemolition (eg HI_Vol and noise) IMS regular
monitoring reports (eg weekly) Monitoring programmes and regular
reporting
ffective 3 Moderate E Unlikely Low 21
33 Environmen tal Services
Site operations decommissionin gdemolition
Noise Nuisance Public nuisance
complaints enforcement action
Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm
weekdays 8am-6pm weekends) boundary noise monitoring
ffective 3 Moderate E Unlikely Low 21
35 Environmen tal Services
Historical operations post decommissionin gdemolition
Discharges to soilgroundwat er landfills
Soilgroundwater contamination Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular monitoring
of known groundwater contamination
ffective 3 Moderate E Unlikely Low 21
36 Environmen tal Services
Environmental incidents decommissionin gdemolition
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for decommissioningdemolition
activities) IMS Incident Management System
ffective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
37 Environmen tal Services
Environmental awareness decommissionin gdemolition
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for
decommissioningdemolition activities) training and induction records (for decommissioning
demolition induction)
ffective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
38 Environmen tal Services
Environmental auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition requirements (eg demolition
approval conditions)
ffective 3 Moderate E Unlikely Low 21
39 Environmen tal Services
Community complaints decommissionin gdemolition
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to complainant Complaints Register
Internal media advisor Reporting to management
ffective 3 Moderate E Unlikely Low 21
40 Environmen tal Services
Annual community consultation post operation
Community perception of organisation
Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Compliance calendar ffective 3 Moderate E Unlikely Low 21
41 Environmen tal Services
Potable water use decommissionin gdemolition
Excessive potable water use
Resource waste
Water overuse financial cost increased risk of
Gulf contamination Resource 3 Moderate E Unlikely Low 21
Re-location of services prior to demolition
ffective 4 Minor E Unlikely Low 23
bullmiddotmiddot middot~ bullmiddot ~- alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 4a Coal Stockpile amp Rail Loop Area as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed
estimates records ffective 4 Minor E Unlikely Low 23
17 Heath
Safety amp Security
Land management heritage (decommissioningd emolition)
Damage to aboriginal andor post settlement heritage items
Damage to heritage items Damage to or loss of
Native amp Heritage items sites
Heritage 3 Moderate E Unlikely Low 21
Site Environmental Awareness Induction
confirmation of any potential heritage sites within impacted
area
ffective 3 Moderate E Unlikely Low 21
18 Heath
Safety amp Security
Land management landscaping (post decommissioningde molition)
Maintaining amp improving landscaping
Improved site amenity Poor visual amenity soil
erosion dust Environmental
Final landforms and potential landscaping plan
ffective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections ffective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissioningde molition
Dust emissions Air quality
Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads
(use of dust suppressant if required) Hi VolDustTrak
dust monitoring on site boundary
ffective 4 Minor E Unlikely Low 23
23 Environmen tal Services
Environmental Compliance decommissioningde molition
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting environmental
checklist for decommissioningdemolition
Surrender of EPA Licence Site Environmental
Awareness Induction S4G29 Hazard Inspections update
induction material for decommissioningdemolition Water Sampling Program
stack and ambient monitoring reporting on EMP and
reporting to EPA
ffective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
24 Environmen tal Services
Coal stockpile management pre-decommissioning (utilisation of stockpile)
Coal dust Air quality
Limit exceedence public nuisance
complaints enforcement action
Environmental 2 Major C Likely High 7
Dust Management Plan Sprays Water truck JSP 322 -paper mulch Project Group
IMS daily checks and records wind speeddirection
ambient monitoring
ffective 4 Minor E Unlikely Low 23
25 Environmen tal Services
Site environmental performance monitoring decommissioningde molition
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS
JSP403 APS Environmental water sampling for SS pH
and salinity Additional siteboundary monitoring
required during decommissioningdemolition (eg HI_Vol and noise) IMS
regular monitoring reports (eg weekly) Monitoring
programmes and regular reporting
ffective 3 Moderate E Unlikely Low 21
26 Environmen tal Services
Ambient environmental monitoring instrumentation calibration (decommissioningd emolition)
Environmental monitoring
Non compliance
Nil Improper process in place
Procedural 3 Moderate D Possible Medium 16
JSP400 APS Environmental water sampling at APS Calibration program and
records Maintenance routines
ffective 3 Moderate E Unlikely Low 21
33 Environmen tal Services
Site operations decommissioningde molition
Noise Nuisance
Public nuisance complaints
enforcement action Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm weekdays 8am-6pm weekends) boundary
noise monitoring
ffective 3 Moderate E Unlikely Low 21
34 Environmen tal Services
Site operations decommissioningde molition
Spillage of stored materials and wastes
Water quality
Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 2 Major E Unlikely Medium 18
IMS regular updating of actions site inspections (required by ECA) S31
Chemwatch S311 Storage Handling and Disposal of solvents etc Emergency
Response Plan Crisis Management Plan IMS
inspection records
ffective 3 Moderate E Unlikely Low 21
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
35 Environmen tal Services
Historical operations post decommissioningde molition
Discharges to soilgroundwat er landfills
Soilgroundwater contamination Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular
monitoring of known groundwater contamination
ffective 3 Moderate E Unlikely Low 21
36 Environmen tal Services
Environmental incidents decommissioningde molition
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for
decommissioningdemolition activities) IMS Incident Management System
ffective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
37 Environmen tal Services
Environmental awareness decommissioningde molition
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction
(reviewed for decommissioningdemolition
activities) training and induction records (for
decommissioning demolition induction)
ffective 4 Minor E Unlikely Low 23
38 Environmen tal Services
Environmental auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include
decommissioningdemolition requirements (eg demolition
approval conditions)
ffective 3 Moderate E Unlikely Low 21
39 Environmen tal Services
Community complaints decommissioningde molition
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation
Directed response to complainant Complaints Register Internal media
advisor Reporting to management
ffective 3 Moderate E Unlikely Low 21
40 Environmen tal Services
Annual community consultation post operation
Community perception of organisation
Non compliance Nil Improper process in
place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar ffective 3 Moderate E Unlikely Low 21
41 Environmen tal Services
Potable water use decommissioningde molition
Excessive potable water use
Resource waste Water overuse financial
cost increased risk of Gulf contamination
Resource 3 Moderate E Unlikely Low 21 Re-location of services prior
to demolition ffective 4 Minor E Unlikely Low 23
43 Loco
refueling area
Loco refueling area (decommissioningd emolition)
Historical oilfuel spillage
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 3 Moderate C Likely High 11 Review for any potential
contamination ffective 3 Moderate E Unlikely Low 21
44
Post production
coal stockpile
area
Runoff from coal stockpile area (post operation)
Water quality (runoff)
Water quality Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 3 Moderate C Likely High 11
Collection no direct marine discharges water monitoring
programme ffective 4 Minor E Unlikely Low 23
45
Post production
coal stockpile
area
Post operation coal stockpile area
Fire (spontaneous combustion)
Air quality Fire smokeparticulate
emissions public amp personnel exposure
Fire 3 Moderate E Unlikely Low 21
Develop strategy to reduce risks of spon com In post operational coal stockpile area Monitoring by Alinta
staff IMS
ffective 4 Minor E Unlikely Low 23
middot bullmiddotmiddot - ~ - al1ntaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 4b Ash Dam ABC Lake amp Polishing Pond as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
6 Heath
Safety amp Security
Ash storage dam management decommissioning demolition
Dust emissions Air quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 3 Moderate D Possible Medium 16
Maintenance work with periodic salt water flooding to maintain crust plus chemical
coating treatment of levees Ash Storage Dam Development Recommendations Ash Storage Dam Management Responsibilities Matrix Develop strategies for management
during decommissioningdemolition and long-term APS Ash Storage Dam
Inspection Checklist JSP234 Ash disposal pipe laying JSP235 Vehicle operation in
Ash Pond area IMS daily inspections ambient monitoring 3 monthly inspections
Effective 3 Moderate E Unlikely Low 21
7 Heath
Safety amp Security
Water emissions (including seepage)
Water quality (carryover of ash trace elements nutrients pH)
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major D Possible High 12
Refer to 6 detention time seeping interception and pump-back review need for
additional floating curtainoil capture daily inspections weekly water sampling water quality monitoring programme 3 monthly
inspections
Effective 3 Moderate E Unlikely Low 21
8 Heath
Safety amp Security
Groundwater contamination
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18 Refer to 7 groundwater monitoring
programme Effective 4 Minor D Possible Low 20
9 Heath
Safety amp Security
Visual impact Amenity Complaints local action
media attention regulatory involvement
Community 3 Moderate C Likely High 11 Screening planting inspection records Effective 4 Minor D Possible Low 20
10 Heath
Safety amp Security
Breeding of midges
Amenity Public health niusance complaints local action
media attention regulatory involvement
Community 3 Moderate C Likely High 11
Control of salinity Site inspections long-term plan for ash storage area Weekly
water sampling Effective 4 Minor E Unlikely Low 23
11 Heath
Safety amp Security
Ash storage dam leakage (eg levee breach) post decommissioning demolition
Water quality Marine contamination mangrove destruction
Marine contamination clean up actions
enforcement actions Environmental 2 Major E Unlikely Medium 18
Refer to 5 perimeter dam wall design inspections Emergency Response Plan
Crisis Management Plan IMS Ash Storage Pond Closure Plan (need to consider long-term stability of levees) daily inspections 3
monthly inspections inspection records
Effective 2 Major E Unlikely Medium 18
12 Heath
Safety amp Security
Land contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major E Unlikely Medium 18
Refer to 6 daily inspections access controls review risks from
decommissioning processes (eg oilhazardous materials removal from
equipment) contain on site Emergency Response Plan Crisis Management Plan
IMS daily inspections
Effective 2 Major E Unlikely Medium 18
14 Heath
Safety amp Security
Fire on site decommissioning demolition
Contaminated fire water discharge
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Contaminated drains system Emergency Response Plan Crisis Management Plan
review options re containment of fire water eg within ABC Lake in preference to
discharge to ash pond storage Maintenance routines Station Instruction
S17 (Spill Response) IMS Plant monitoring
Effective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
15 Heath
Safety amp Security
Site security decommissioning demolition
vandalism Site amenity Site damage injury to
persons Security 3 Moderate D Possible Medium 16
Site security systems Emergency Response Plan
Effective 3 Moderate E Unlikely Low 21
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates records
Effective 4 Minor E Unlikely Low 23
18 Heath
Safety amp Security
Land management landscaping (post decommissioning
Maintaining amp improving landscaping
Improved site amenity Poor visual amenity soil
erosion dust Environmental
Final landforms and potential landscaping plan
Effective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections Effective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissioning demolition
Dust emissions Air quality Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust suppressant if required) Hi VolDustTrak dust monitoring
on site boundary
Effective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement Action Owner
Strategic or Approved Action
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
23 Environment al Services
Environmental Compliance decommissioning demolition
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting
environmental checklist for decommissioningdemolition Surrender of
EPA Licence Site Environmental Awareness Induction S4G29 Hazard
Inspections update induction material for decommissioningdemolition Water
Sampling Program stack and ambient monitoring reporting on EMP and reporting
to EPA
Effective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environment al Services
Site environmental performance monitoring decommissioning demolition
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during decommissioningdemolition (eg HI_Vol and noise) IMS regular monitoring reports (eg
weekly) Monitoring programmes and regular reporting
Effective 3 Moderate E Unlikely Low 21
26 Environment al Services
Ambient environmental monitoring instrumentation calibration (decommissioning demolition)
Environmental monitoring
Non compliance
Nil Improper process in place
Procedural 3 Moderate D Possible Medium 16
JSP400 APS Environmental water sampling at APS Calibration program and records
Maintenance routines Effective 3 Moderate E Unlikely Low 21
32 Environment al Services
Discharges into the marine environment decommissioning demolition (including use or removal of bulk chemicals)
Contaminated drains SPELS
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Chemical oil and fuel bunding oil separation stormwater segregation
monitoring of stormwater control systems S310 (Ferrous sulphate) S311 (Solvents) S313 (Sodium hypochlorite) S315 (Waste
oil) Pump outs Decommissioning and demolition within containment (minimise
direct discharges to marine environment) Emergency Response Plan IMS water monitoring programme site inspections
Effective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
33 Environment al Services
Site operations decommissioning demolition
Noise Nuisance Public nuisance complaints
enforcement action Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm weekdays 8am-6pm weekends) boundary noise monitoring
Effective 3 Moderate E Unlikely Low 21
34 Environment al Services
Site operations decommissioning demolition
Spillage of stored materials and wastes
Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 2 Major E Unlikely Medium 18
IMS regular updating of actions site inspections (required by ECA) S31
Chemwatch S311 Storage Handling and Disposal of solvents etc Emergency
Response Plan Crisis Management Plan IMS inspection records
Effective 3 Moderate E Unlikely Low 21
35 Environment al Services
Historical operations post decommissioning demolition
Discharges to soilgroundwat er landfills
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular monitoring of
known groundwater contamination Effective 3 Moderate E Unlikely Low 21
36 Environment al Services
Environmental incidents decommissioning demolition
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for decommissioningdemolition activities) IMS
Incident Management System Effective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to be
used (IMS)
Alinta Energy Earlymid 2016
37 Environment al Services
Environmental awareness decommissioning demolition
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for decommissioningdemolition activities) training and induction records
(for decommissioning demolition induction)
Effective 4 Minor E Unlikely Low 23
38 Environment al Services
Environmental auditing (and forwarding summary to EPA) review requirement post
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition requirements
(eg demolition approval conditions) Effective 3 Moderate E Unlikely Low 21
39 Environment al Services
Community complaints decommissioning demolition
Amenity community perception of organisation
Nuisance
Complaints local action media attention
regulatory involvement Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to
complainant Complaints Register Internal media advisor Reporting to management
Effective 3 Moderate E Unlikely Low 21
40 Environment al Services
Annual community consultation post operation
Community perception of organisation
Non compliance Nil Improper process in
place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar Effective 3 Moderate E Unlikely Low 21
41 Environment al Services
Potable water use decommissioning demolition
Excessive potable water use
Resource waste Water overuse financial cost increased risk of
Gulf contamination Resource 3 Moderate E Unlikely Low 21 Re-location of services prior to demolition Effective 4 Minor E Unlikely Low 23
bullmiddotmiddot -~ - - alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 7 Hospital Creek as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure
Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates
records ffective 4 Minor E Unlikely Low 23
18 Heath
Safety amp Security
Land management landscaping (post decommissio ningdemolitio n)
Maintaining amp improving landscaping
Improved site amenity
Poor visual amenity soil erosion dust
Environmental Final landforms and potential
landscaping plan ffective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections ffective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissio ningdemolitio n
Dust emissions Air quality Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust suppressant if required) Hi VolDustTrak dust monitoring on
site boundary
ffective 4 Minor E Unlikely Low 23
23 Environmen tal Services
Environment al Compliance decommissio ningdemolitio n
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA
reporting environmental checklist for decommissioningdemolition Surrender of EPA Licence Site
Environmental Awareness Induction S4G29 Hazard
Inspections update induction material for
decommissioningdemolition Water Sampling Program stack
and ambient monitoring reporting on EMP and reporting to EPA
ffective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environmen tal Services
Site environmenta l performance monitoring decommissio ningdemolitio n
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS
Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during
decommissioningdemolition (eg HI_Vol and noise) IMS regular monitoring reports (eg weekly) Monitoring programmes and
regular reporting
ffective 3 Moderate E Unlikely Low 21
32 Environmen tal Services
Discharges into the marine environment decommissio ningdemolitio n (including use or removal of bulk chemicals)
Contaminated drains SPELS
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Chemical oil and fuel bunding oil separation stormwater
segregation monitoring of stormwater control systems
S310 (Ferrous sulphate) S311 (Solvents) S313 (Sodium
hypochlorite) S315 (Waste oil) Pump outs Decommissioning and
demolition within containment (minimise direct discharges to
marine environment) Emergency Response Plan IMS water monitoring programme site
inspections
ffective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
33 Environmen tal Services
Site operations decommissio ningdemolitio n
Noise Nuisance Public nuisance
complaints enforcement action
Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm
weekdays 8am-6pm weekends) boundary noise monitoring
ffective 3 Moderate E Unlikely Low 21
35 Environmen tal Services
Historical operations post decommissio ningdemolitio n
Discharges to soilgroundwat er landfills
Soilgroundwater contamination Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular
monitoring of known groundwater contamination
ffective 3 Moderate E Unlikely Low 21
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure
Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement Action Owner
Strategic or Approved Action
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
36 Environmen tal Services
Environment al incidents decommissio ningdemolitio n
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for
decommissioningdemolition activities) IMS Incident Management System
ffective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
37 Environmen tal Services
Environment al awareness decommissio ningdemolitio n
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for
decommissioningdemolition activities) training and induction records (for decommissioning
demolition induction)
ffective 4 Minor E Unlikely Low 23
38 Environmen tal Services
Environment al auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition requirements (eg demolition
approval conditions)
ffective 3 Moderate E Unlikely Low 21
39 Environmen tal Services
Community complaints decommissio ningdemolitio n
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to complainant
Complaints Register Internal media advisor Reporting to
management
ffective 3 Moderate E Unlikely Low 21
40 Environmen tal Services
Annual community consultation post operation
Community perception of organisation
Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Compliance calendar ffective 3 Moderate E Unlikely Low 21
41 Environmen tal Services
Potable water use decommissio ningdemolitio n
Excessive potable water use
Resource waste
Water overuse financial cost increased risk of
Gulf contamination Resource 3 Moderate E Unlikely Low 21
Re-location of services prior to demolition
ffective 4 Minor E Unlikely Low 23
bullbull -~J- alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 8 Playford Power Stations as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
1 General Office activities
Energy use Resource use Energy overuse Resource 5 Insignificant C Likely Low 22
waste disposal costs and recyclingsalvage revenue
E ective 5 Insignificant C Likely Low 22
2 General
General waste management
General waste Resource use
Excessive waste generation Resource 4 Minor C Likely Medium 17
Waste segregation JSP 320 Unloading and Handling of Rubbish
Skips monitor re contamination E ective 5 Insignificant E Unlikely Low 25
3
General equipment
decommission ing
Industrial waste management (ex-asbestos) (Waste oil considered separately)
Industrial waste [local] storage and transport to site storage area
Waste disposalrecycling soilgroundwater contamination
Improper waste disposal contamination of waste
destination enforcement action Waste 3 Moderate C Likely High 11
Waste Management at APS S38 Disposal Procedure for Aerosol cans
etc S311 Storage Handling and Disposal of solvents etc amp S315 Storage Handling and Disposal of waste oil JSP 320 Unloading and
Handling of Rubbish Skips monitor to ensure clear identification
samplinganalysis if required Maintain waste disposal records (eg WTCs or
WTFs)
E ective 3 Moderate E Unlikely Low 21
4 APS post
production
Asbestos management
Asbestos removal storage and disposal
Air quality
Airborne asbestos enforcement action
Human Health 2 Major D Possible High 12
S32 Asbestos Management System amp site procedures qualified contractor S37 Guidelines for the safe use of insulation of materials containing
SMFs Asbestos Register air monitoring waste disposal records
(WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
5 General
decommission ing
Industrial Waste water (contaminate d drains and ash)
Overflows Marine pollution
Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 2 Major E Unlikely Medium 18
JSP117 Drain cleaning amp JSP228 Ash Pit cleaning block drains within work
areas that discharge directly to marine environment if practicable Emergency
Response Plan Spill response IMS water monitoring programme disposal
records (WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
13 Heath Safety
amp Security
Implement contingency plan decommissio ningdemoliti on
environmental contingencies
Environmental harm
Nil Improper process in place Procedural 2 Major E Unlikely Medium 18
Emergency response plans (reviewed annually) review for decommissioning demolition activities (after project plan
has been developed) Crisis Management Plan Review response
equipment and training Support procedures eg Incident Management System Station Instruction S17 (Spill
Response) S316 (Spill Reporting) S18 (Fire Reporting) S4G29 Hazard
inspections amp JSP385 Use of emergency boat IMS IMS
E ective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm
Alinta Energy Earlymid 2016
14 Heath Safety
amp Security
Fire on site decommissio ningdemoliti on
Contaminated fire water discharge
Water quality
Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 2 Major E Unlikely Medium 18
Contaminated drains system Emergency Response Plan Crisis
Management Plan review options re containment of fire water eg within
ABC Lake in preference to discharge to ash pond storage Maintenance
routines Station Instruction S17 (Spill Response) IMS Plant monitoring
E ective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
15 Heath Safety
amp Security
Site security decommissio ningdemoliti on
vandalism Site amenity
Site damage injury to persons Security 3 Moderate D Possible Medium 16 Site security systems Emergency
Response Plan E ective 3 Moderate E Unlikely Low 21
16 Heath Safety
amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates records
E ective 4 Minor E Unlikely Low 23
18 Heath Safety
amp Security
Land management landscaping (post decommissio ningdemoliti on)
Maintaining amp improving landscaping
Improved site amenity
Poor visual amenity soil erosion dust
Environmental Final landforms and potential
landscaping plan E ective
19 Heath Safety
amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections E ective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
20 Heath Safety
amp Security
Waste recycling area(s) decommissio ningdemoliti on
Waste management
Resource use
Improper waste disposal contamination of waste
destination enforcement action Resource 3 Moderate E Unlikely Low 21
Waste segregation (to improve recycling re-use) Waste management
Process Site Map S311 Storage Handling and Disposal of solvents etc Determine if the area is adequate for
decommissioningdemolition Establish additional areas for staging of material prior to re-use on site andor disposal
Control runoff (via containment pond(s) Site inspections routine visits by external recycling contractor S37
Guidelines for the safe use of insulation materials containing SMF
waste recycling records Waste disposal records (WTCs and WTFs)
E ective 4 Minor E Unlikely Low 23
21 Heath Safety
amp Security
Disposal of mercury-containing lighting (eg fluoros) decommissio ning
Landfill Soilgroundwater contamination
Improper waste disposal contamination of waste
destination enforcement action Resource 4 Minor E Unlikely Low 23
Waste segregation managed by appropriate waste management company Waste management
Process Site Map S38 Disposal Procedure for Aerosol cans empty
fluid drums small batteries permalubes and mercury globes
Provide labelled containers (eg 200L drums) for storage prior to removal Waste disposal records (WTCs and
WTFs)
E ective 5 Insignificant E Unlikely Low 25
22 Heath Safety
amp Security
Road traffic decommissio ningdemoliti on
Dust emissions Air quality
Limit exceedence public nuisance complaints
enforcement action Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust suppressant if required) Hi
VolDustTrak dust monitoring on site boundary
E ective 4 Minor E Unlikely Low 23
23 Environmental
Services
Environment al Compliance decommissio ningdemoliti on
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting
environmental checklist for decommissioningdemolition
Surrender of EPA Licence Site Environmental Awareness Induction S4G29 Hazard Inspections update
induction material for decommissioningdemolition Water
Sampling Program stack and ambient monitoring reporting on EMP and
reporting to EPA
E ective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environmental
Services
Site environmenta l performance monitoring decommissio ningdemoliti on
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS
Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during decommissioningdemolition (eg HI_Vol and noise) IMS regular
monitoring reports (eg weekly) Monitoring programmes and regular
reporting
E ective 3 Moderate E Unlikely Low 21
32 Environmental
Services
Discharges into the marine environment decommissio ningdemoliti on (including use or removal of bulk chemicals)
Contaminated drains SPELS
Water quality
Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 2 Major E Unlikely Medium 18
Chemical oil and fuel bunding oil separation stormwater segregation
monitoring of stormwater control systems S310 (Ferrous sulphate) S311 (Solvents) S313 (Sodium
hypochlorite) S315 (Waste oil) Pump outs Decommissioning and demolition
within containment (minimise direct discharges to marine environment)
Emergency Response Plan IMS water monitoring programme site
inspections
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
33 Environmental
Services
Site operations decommissio ningdemoliti on
Noise Nuisance
Public nuisance complaints enforcement action
Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm weekdays 8am-
6pm weekends) boundary noise monitoring
E ective 3 Moderate E Unlikely Low 21
35 Environmental
Services
Historical operations post decommissio ningdemoliti on
Discharges to soilgroundwater landfills
Soilgroundwater contamination
Soilgroundwater contamination clean up actions enforcement
actions Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular monitoring of
known groundwater contamination E ective 3 Moderate E Unlikely Low 21
36 Environmental
Services
Environment al incidents decommissio ningdemoliti on
Various Environmental harm
Nil Improper process in place Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for decommissioningdemolition activities)
IMS Incident Management System E ective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
37 Environmental
Services
Environment al awareness decommissio ningdemoliti on
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for
decommissioningdemolition activities) training and induction records (for
decommissioning demolition induction)
E ective 4 Minor E Unlikely Low 23
38 Environmental
Services
Environment al auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition
requirements (eg demolition approval conditions)
E ective 3 Moderate E Unlikely Low 21
39 Environmental
Services
Community complaints decommissio ningdemoliti on
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to complainant Complaints Register
Internal media advisor Reporting to management
E ective 3 Moderate E Unlikely Low 21
40 Environmental
Services
Annual community consultation post operation
Community perception of organisation
Non compliance
Nil Improper process in place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar E ective 3 Moderate E Unlikely Low 21
41 Environmental
Services
Potable water use decommissio ningdemoliti on
Excessive potable water use
Resource waste
Water overuse financial cost increased risk of Gulf
contamination Resource 3 Moderate E Unlikely Low 21
Re-location of services prior to demolition
E ective 4 Minor E Unlikely Low 23
44
Post production
coal stockpile area
Runoff from coal stockpile area (post operation)
Water quality (runoff)
Water quality Soilgroundwater contamination clean up actions enforcement
actions Environmental 3 Moderate C Likely High 11
Collection no direct marine discharges water monitoring programme
E ective 4 Minor E Unlikely Low 23
45
Post production
coal stockpile area
Post operation coal stockpile area
Fire (spontaneous combustion)
Air quality Fire smokeparticulate
emissions public amp personnel exposure
Fire 3 Moderate E Unlikely Low 21
Develop strategy to reduce risks of spon com In post operational coal stockpile area Monitoring by Alinta
staff IMS
E ective 4 Minor E Unlikely Low 23
46
Post production
coal conveyors
Coal conveyors
Coal dust (conveyorstransfer s)
Air quality Personnel exposure limit
exceedence public nuisance complaints enforcement action
Environmental 3 Moderate C Likely High 11 wash down of built up dust E ective 5 Insignificant E Unlikely Low 25
47 Post
production coal bins
Coal bin storage
Coal dust Air quality Personnel exposure limit
exceedence public nuisance complaints enforcement action
Environmental 3 Moderate D Possible Medium 16 Wash down of built up dust ambient
monitoring maintenance records E ective 3 Moderate E Unlikely Low 21
48
Fireexplosion Air quality
Coal dust explosion Fire 2 Major D Possible High 12
Review risk assessments for decommissioningdemolition
Emergency Response Plan IMS E ective 3 Moderate E Unlikely Low 21
49 APS post production
Coal plant washdown
Marine discharge Water quality Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 4 Minor D Possible Low 20
Containment of washwater JSP 107 Bunker Washing water monitoring
programme E ective 4 Minor E Unlikely Low 23
50 APS post production
Decommissio ningdemoliti on
Oil spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate E Unlikely Low 21
Contaminated drain system S17 Oil Spill Procedure review and enhance
containment options Emergency Response Plan IMS Maintenance
records
E ective 4 Minor E Unlikely Low 23
51 APS post production
Decommissio ningdemoliti on
Fuel oil spillage (eg gun malfunction)
Water quality Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate D Possible Medium 16
Operating controls S17 Oil Spill procedure contaminated drains Emergency Response Plan IMS
E ective 3 Moderate E Unlikely Low 21
52 APS post
production
Decommissio ningdemoliti on
Seawater flow Ecological impact (eg fauna loss)
ReductionIncrease in number amp abundance of local marine
species Environmental 3 Moderate E Unlikely Low 21
Review options for cooling water channels (eg breach wall)
E ective 3 Moderate E Unlikely Low 21
53 APS post
production
Decommissio ningdemoliti on
Contamination of condenser cooling water
Ecological impact
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major E Unlikely Medium 18
Review options for condensers (post production) visual
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
54 APS post
production
Boiler water drainage
Treated water discharge
Water quality Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 4 Minor D Possible Low 20
drainage into Ash pit Operating controls ambient water monitoring
programme E ective 4 Minor E Unlikely Low 23
59 APS post
production
Fly ashbottom ash handling systems decommissio ningdemoliti on
Spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major E Unlikely
Flush ash systems to ash storage area water monitoring programme
E ective 4 Minor E Unlikely Low 23
60 APS post
production
Fly ash re-use storage and handling area
Spillage Water quality Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 4 Minor D Possible
Empty and washdown plant Discharge to containment area
E ective 4 Minor E Unlikely Low 23
61 APS post
production
Decommissio ningdemoliti on
Contamination of flow to ash storage pond (eg oil)
Water quality
Spill entering ash disposal system discharge to Gulf
waters enforcement action Environmental 3 Moderate D Possible
Contaminated drains oil containment oil handling ash pond controls Ash
storage dam inspections Emergency Response Plan IMS inspection
records
E ective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
64 APS post
production
Oil removal Oil spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate C Likely High 11
Station Instructions S17 Oil Spill procedure S315 Storage Handling and Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil treatment plant Contaminated drain system Emergency Response Plan IMS water monitoring programme
E ective 4 Minor E Unlikely Low 23
65 APS post
production
Waste oil storage
Oil spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate C Likely High 11
Bunded storage S17 Oil Spill procedure S315 Storage Handling and Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil
treatment plant Emergency Response Plan IMS water monitoring
programme
E ective 3 Moderate E Unlikely Low 21
66 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up actions enforcement
actions Environmental 2 Major E Unlikely Medium 18
Bunded storage Emergency Response Plan Spill response IMS
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
67 APS post
production
Fire Air quality
Fire personnel exposure Fire 3 Moderate E Unlikely Low 21
Storage controls (minimise ignition sources) Emergency Response Plan
Crisis Management Plan IMS E ective 3 Moderate E Unlikely Low 21
68 APS post
production
Discharges into the marine environment
Contaminated drains SPELS
Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major D Possible High 12
Chemical oil and fuel bunding oil separation maintenance of SPEL
tanks stormwater segregation review of routine to inspect SPEL tanks
Emergency Response Plan IMS water monitoring programme site
inspections SPEL cleanout routines
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
69 APS post
production
Oil -filled electrical equipment decommissio ning and removal
Leakage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major E Unlikely Medium 18
Bunding S17 Oil Spill procedure JSP271 NPS Step-up Unit transformer amp line isolator
maintenance Emergency Response Plan Crisis Management Plan IMS monitoring of oil properties (eg PCB
content)
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
70 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up actions enforcement
actions Environmental 2 Major E Unlikely Medium 18
Containment of oil-filled equipment Emergency Response Plan
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
71 APS post
production
Fire explosion Air quality
Fire personnel exposure Fire 2 Major E Unlikely Medium 18 Permits containment E ective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
79 APS post
production
Demolition general
Lead emissions (from lead-based paints)
Personnel exposure limit exceedence public nuisance
complaints enforcement action Environmental 3 Moderate E Unlikely Low 21
lead paint testing dust control processes Maintenance routines lead
in paint testing (as required) and recorded
E ective 4 Minor E Unlikely Low 23
80 APS post
production
Refrigeration air conditioning servicing decommissio ning (as required)
Release of ozone depleting substances
Depletion of Ozone layer
Environmental harm regulatory enforcement
Environmental 3 Moderate D Possible Medium 16
ARC licensed operators ozone-depleting gas reclaim for
decommissioned equipment Audits based on ARC requirements JSP372 Air Conditioner Maintenance Records
of ozone-depleting substances reclaim etc
E ective 3 Moderate E Unlikely Low 21
81 APS post
production
Sewerage system relocation of services (caused by decommissio ning and demolition)
Sewage overflow Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 4 Minor D Possible Low 20
Response to sewer chokes JSP028 Sewage Pit pump and control repairs
Emergency Response Plan IMS E ective 4 Minor E Unlikely Low 23
82 APS post
production
PPS Seawall collapserem oval
Loss of material into marine environment
Water Quality Contaminated material entering
the Gulf damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18 Site inspections E ective 2 Major E Unlikely Medium 18
83 APS post
production
Earthworks Project-specific erosion and sedimentation
Project-specific marine contamination Soilsedimentash entering onsite
drains system discharge to Gulf waters enforcement action
Environmental
Project-specific EMP (by contractor(s)) APS Change Request (Form C1-1) Change Management
Procedure HSRP 330 erosion controls Project Management Manual Project-
specific water quality
E ective
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
96 Playford
Power Station demolition
Septic systems decommissio ning
Spillage Water quality HAZMAT scenario water soil amp groundwater contamination
clean up actions enforcement actions
Environmental 4 Minor D Possible Low 20 Arrange pump-outs E ective 4 Minor E Unlikely Low 23
97 Playford
Power Station demolition
Demolition stacks
Contaminated brick work
Incorrect disposal Improper waste disposal contamination of waste
destination enforcement action Waste 2 Major E Unlikely Medium 18
Containment of waste material Samplinganalysis to determine
disposal options Disposal records (eg WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
Appendix B
Augusta Power Stations
NPS Facility
Make Safe Manual
Revision Date Description Prepared by Reviewed by Approved by
0 29116 Initial draft
1 23216 First revision PMAPS FM
2 29216 Second revision ndash removed FM from activities
PMAPS FM
3 51016 Corrections
Distribution List
TBA
Decommissioning Manual ndash NPS
Index
1 Introduction 4
2 Closure Philosophy 4
3 Closure Strategy 4
4 Responsibilities 4
5 Titles 4
6 BoilerGenerator Unit 5
61 Turbine 5
611 Turbine Oil System 5
612 Condenser Condensate side 5
613 Condenser Seawater side 6
614 Turbine Valves 7
62 Generator 7
621 Hydrogen System 7
63 CW System 8
631 Chambers 8
632 CW pumps 9
633 CW Screens 9
634 CW Ducts 10
64 Feedwater System 10
641 LP Feedwater 10
642 Boiler feed Pumps 11
643 HP Feedwater 11
641 Feed Make-up 12
65 Boiler 12
651 Pressure parts 12
652 Furnace and Gas path 13
66 Draught Plant 14
67 Valves 15
68 Main Pipework 15
69 ACW System 16
691 ACW Seawater Side 16
692 ACW Fresh water Side 16
610 Coal System 17
6101 Train Unloading 17
6102 Bins and Bunkers 17
6103 Conveyors 18
6104 Coal Feeders 18
6105 Mills 19
611 Fuel oil system 19
6111 Fuel oil pumps 19
6112 Fuel Oil Storage 20
612 Ash System 21
6121 Sluice Pumps 21
6122 Hoppers 21
6123 Precips 22
6124 Deasher 22
Appendix B NPS Make Safe Manual Correcteddocx - 2 -
6125 Ash Pit 23
7 Electrical Systems 23
71 Control Systems 23
72 Instrumentation 24
73 DC System 24
731 220 V System 24
732 110 V System 25
733 24 V System 25
74 HV 26
741 High Voltage Disconnections 26
75 Switchboards 26
751 66 kv 26
76 Transformers 27
77 Diesel Generators 27
8 Station Auxilliaries 28
81 Aux blr 28
82 Compressed Air System 28
83 Water treatment plant 29
84 Fire protection System 29
85 Cranes and Lifts 30
86 TW and Drains system 31
87 Stack 31
9 Services 32
91 Workshops 32
92 Heavy machine and Mobile Plant 33
93 Admin 34
94 Document information and management 34
95 Security 35
10 Infrastructure of Interest 35
101 CW System 36
102 Workshops 36
103 Water storage tanks 37
104 PPS Diesel Fire pumps 37
11 Appendix 37
111 Legal and other Requirements 37
1111 Legislation and Strategies 37
1112 Alinta Policies 38
112 References 39
113 Project Plan 40
114 NPS Administration 40
1141 NPS Isolations 40
1142 NPS Closure Audit 40
115 NPS Residual Risks 41
Appendix B NPS Make Safe Manual Correcteddocx - 3 -
1 Introduction
The Northern Power Station has been operating in a flexible generating profile and has been able to respond to Market opportunities over the past few years Since the application of Scenario 1 to NPS generation profiles and significant increase in Wind and Solar generation in the SA market it has become increasingly difficult to maintain a commercial return on APS Electricity Production This has resulted in a decision by the Alinta Board to close the Power Station in Q2 of 2016
2 Closure Philosophy
The closures of the NPS site are outlined in the Lease Agreement and require Alinta to rehabilitate the APS site to its pre-developed condition The Closure Plan seeks to facilitate the removal of the Power Station infrastructure to manage all of the Asset removal with no impact on the surrounding environsrsquo meet all condition of the Lease Agreement and Legislative requirements
Alinta acknowledges that the demolition and site rehabilitation works are deemed to be lsquoHigh Riskrsquo work activities and will ensure appropriate management of this work in accordance with WHS Act 2012 and Regulations
Alinta will ensure the key principle of lsquoZero Harmrsquo will be embedded in all activities associated with the Closure Disposal and Remediation of the NPS site in accordance with the Lease Agreement
3 Closure Strategy
The focus of this manual is to outline activities to be carried out to make the plant safe for disposaldemolition by third parties
Key objectives are to remove all foreseeable hazards to the environment and salvagedemolition personnel during the remediation programme
4 Responsibilities
The `Plant managerrsquo will seek approval of Closure plans and allocate resources to implement the effective management and Make Safe activities of the NPS site prior to handover to the Facilities Manager and contractors for demolitionrehabilitation
The lsquoFacilities Managerrsquo and the Project team will communicate the sequence and timing of activities in accordance with this plan to internal stakeholders and external parties and contractors as required The FM will also lead a small team of experts to oversee the demolition and remediation activities
5 Titles
Facilities Manager - FM Operations amp Maintenance Manager ndash OMM Production Manager Augusta - PMA Scientific Services an Chemical Superintendent - SSCS
Appendix B NPS Make Safe Manual Correcteddocx - 4 -
6 BoilerGenerator Unit
61 Turbine
611 Turbine Oil System
Asset Management Strategy
Remove hazards present to the environment and personnel from the Lube oil systems during decommissioning
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommission operation
Item Plant Description Proposed Actions Responsibility
1 Lube Oil System Drain all lube oil and seal oil to main tank OMM
2 Lube Oil Tank
Monitor lube oil tank for potential leaks until handover to FM and contactors for final decommissioing OMM
3 Oil pumps Isolate electrical supplies to Oil Pumps OMM
4 Seal oil tank Drain the Seal Oil system OMM
5 Seal oil pumps Isolate electrical supplies to Seal Oil Pumps OMM
612 Condenser Condensate side
Asset Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 5 -
Eliminate the possibility of toxic gases andor pressure build up in the system during decommissioning
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Item Plant Description Proposed Actions Responsibility
Condenser and CEPrsquos
Open all drain vvrsquos and open up condenser doors OMMOMM
CEP MotorPump Drain motor and Pump oil OMM
613 Condenser Seawater side
Asset Management Strategy Minimise build-up of toxic gases from decomposed marine growth in the Condenser
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Item Plant Description Proposed Actions Responsibility
1 Condenser Seawater side
Open all condenser drain valves once the condenser is isolated from the CW chamber OMM
Gas test for toxic gases OMM
Appendix B NPS Make Safe Manual Correcteddocx - 6 -
614 Turbine Valves
Asset Management Strategy Minimise hazards to the environment and personnel in the Valve Control oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
ITEM Plant Description Proposed Actions Responsibility
1 Major turbine vvrsquos Isolate electrical supplies to Valves OMM
11 Drain control oil actuators and pipework OMM
2 HP and LP By-pass vvrsquos
Decommission and drain Control stations and accumulators OMM
62 Generator
521 Generator Rotor
Asset Management Strategy Removing hazards to the environment and personnel from the Generators
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Item Plant Description Proposed Actions Responsibility
Generator Casing
Isolate hydrogen from generator case and purge casing OMM
621 Hydrogen System
Asset Management Strategy Shutdown Hydrogen system to prevent any risk of hydrogen fuelled fire or explosion
Appendix B NPS Make Safe Manual Correcteddocx - 7 -
Controls The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 Hydrogen System
Shut down isolate and purge Hydrogen system OMMSSCS
2 Hydrogen System
Remove all Hydrogen supplies from site once second Unit is OOS OMM
63 CW System
631 Chambers
Asset Management Strategy Isolate the inletoutlet channel water from the Condenser basements
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
CW pumps
Fit blanks to the CW pump discharge pipe to isolate the chamber from the Condenser basement
OMM
CW pump Drain Oil from pump OMM
Taprogge recirc pumps Drain oil from pumps OMM
Dosing pumps (hypo chlorFE chlor Drain oil from pumps OMM
Chlorine Plant Shut down and flush chemicals from lines SSCS
Appendix B NPS Make Safe Manual Correcteddocx - 8 -
Chlorine plant pipework Drain and dry store SSCS
Electrolysers Drain and dry store SSCS
Chlorine storage tank Drain and dry store SSCS
632 CW pumps
Asset Management Strategy Remove environmental contaminants from CW pumps
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
5321
CW pumps Drain oil from CW pp bearings OMM
CW Pump Motors Isolate motor heaters OMM
Empty chamber remove CW pumps and blank off CW pump discharge pipe OMM
633 CW Screens
Asset Management Strategy Remove environmental contaminants from CW screens
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Appendix B NPS Make Safe Manual Correcteddocx - 9 -
Plant Description Proposed Actions Responsibility
5331
CW Screens Drain oil from CW screen gearboxes not required by third party OMM
634 CW Ducts
Asset Management Strategy Minimise build-up of toxic gases from decomposed marine growth in the Condenser
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommission operation
Plant Description Proposed Actions Responsibility
5331
CW Ducts Isolate from CW chamber and pump dry OMM
64 Feedwater System
641 LP Feedwater
Asset Management Strategy Eliminate the possibility of gases andor pressure build-up in the system
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
LP feedheaters Open drains and doors OMM
GS Condenser Open drains and doors OMM
Appendix B NPS Make Safe Manual Correcteddocx - 10 -
LP Ejector Open drains and doors OMM
Deaerator and DAFT Open drains and doors OMM
DA off load circ pump Drain oil from pump OMM
Ammonia dosing pump Drain oil from pump OMM
642 Boiler feed Pumps
Asset Management Strategy Remove any hazards to the environment or personnel in the Boiler Feed pumps
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
1
Boiler feed pp amp DAFT header Isolate and drain system OMM
Drain oil from BFPrsquos and GTDrsquos OMM
643 HP Feedwater
Asset Management Strategy Minimise possibility of gases andor pressure build up in the system
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Appendix B NPS Make Safe Manual Correcteddocx - 11 -
Plant Description Proposed Actions Responsibility
HP6 amp 7 Drain HP Heater shell and store dry OMM
Drain Feedwater side and store dry OMM
641 Feed Make-up
Asset Management Strategy
Drain systems to minimise internal corrosion
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 Feedwater make up heater Drain and store dry OMM
2 Hot Condesate Storage tank Drain and store dry OMM
3 RFW Tanks Drain and store dry OMM
65 Boiler
651 Pressure parts
Asset Management Strategy Minimise possibility of gases andor pressure build up in the system
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Appendix B NPS Make Safe Manual Correcteddocx - 12 -
Plant Description Proposed Actions Responsibility
Boiler Tubes amp Superheaters
Boilers to be removed from service amp drained hot OMM
Open up all drains and vents OMM
Valves - general Drain oil from actuators OMM
Valves - Blr safety vvrsquos Relieve spring tension OMM
Blowdown vessels Ensure drain vvs are open OMM
652 Furnace and Gas path
Asset Management Strategy
To ensure furnace is clear of ashslag deposits to minimise the potential for corrosion and environmental contamination during the Care period
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1
Furnace super htr area and penthouse
Gas path to be washed including penthouse All dead spaces including inside nose and either side of boiler throat all ash hoppers to be cleaned amp left dry OMM
2 Water walls Washed out after shut down and dry store OMM
3 Economiser Washed out after shut down and dry store OMM
Appendix B NPS Make Safe Manual Correcteddocx - 13 -
66 Draught Plant
Asset Management Strategy Minimise any residual hazards remaining in the Draught Plant
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
Air heaters WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
ID fans WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
PA fans WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
SA fan WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
GR fans WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
Appendix B NPS Make Safe Manual Correcteddocx - 14 -
ID PA SA GR Motors Disconnect motor heater power supplies OMM
DuctsDampers WashedVaccuumed out OMM
Drain oil from damperactuator gearboxes OMM
67 Valves
Asset Management Strategy Minimise any residual hazards or kinetic energy remaining in the valves on site
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Selected safety valves
Relieve all spring tensions based on individual risk assesments OMM
68 Main Pipework
Asset Management Strategy Minimise any residual hazards remaining in the Pipework
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Main pipework from Boiler to Turbine Open all vents and drains OMM
Appendix B NPS Make Safe Manual Correcteddocx - 15 -
69 ACW System
691 ACW Seawater Side
Asset Management Strategy Minimise build-up of toxic gases from decomposing marine growth in the ACW pipework and heat exchangers and remove environmental hazards
Controls The following controls have been identified to eliminate the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Heat exchangers Isolate and drain heaters of seawater OMM
ACW pumps Drain oil from the bearings OMM
ACW system Open all drains and vents OMM
Test for toxic gases OMMSSCS
692 ACW Fresh water Side
Asset Management Strategy Remove environmental hazards from the ACW system
Controls The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Coolers Drain all ACW coolers OMM
Pumps Drain oil from pumps OMM
Appendix B NPS Make Safe Manual Correcteddocx - 16 -
610 Coal System
6101 Train Unloading
Asset Management Strategy To minimise environmental hazards
Controls
The following controls have been identified to minimise the hazards to the environment
Plant Description Proposed Actions Responsibility
Train unloader WashVaccuum all hoppers feeders and conveyor systems OMM
Unloader walls
Monitor water level in Unloader pitValve in wall to be opened periodically to relieve water pressure on walls Note Needs to be condition included in transfer agreement OMM
Unloader sump
Unloader sump pump will need to be maintained Note Once supply to Unloader is decommissioned sump pump will not operate OMM
6102 Bins and Bunkers
Asset Management Strategy To minimise environmental hazards
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Bins Emptied and washed out OMM
Ploughs Park ploughs in bypass position and wash down OMM
Appendix B NPS Make Safe Manual Correcteddocx - 17 -
Drain gearbox oils OMM
Trippers Wash down trippers OMM
Drain gearbox oils OMM
Bunkers Empty and Wash out bunkers OMM
6103 Conveyors
Asset Management Strategy Remove environmental kinetic energy and fire hazards from the coal system
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Conveyors Shutdown Coal conveyor systems and wash down OMM
Conveyors Drain oil from gearboxes OMM
Release belt tensioners and lower weights to the ground and secure OMM
Coal line Fire System
Maintain fire detection and deluge systems until Make safe is complete in accordance with OEM OMM
Coal line Fire System
Maintain fire detection and deluge systems in accordance with OEM OMM
6104 Coal Feeders
Asset Management Strategy To minimise environmental hazards
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 18 -
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Mill feeders Emptied out on shutdown and washed out for dry store OMM
Mill feeders Drain gearbox oils OMM
6105 Mills
Asset Management Strategy Remove environmental contaminants and kinetic energy from the coal Mills
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Mills Empty out Mills and wash out for dry store OMM
Mills
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
Release mill roller spring tension OMM
611 Fuel oil system
6111 Fuel oil pumps
Asset Management Strategy Remove environmental contaminants from Fuel oil system
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Appendix B NPS Make Safe Manual Correcteddocx - 19 -
Plant Description Proposed Actions Responsibility
Oil guns
Remove guns and store in Mills Workshop with supply lines capped and nozzles plugged OMM
FO heaters Drain fuel oil heaters OMM
FO pipework Drain fuel oil pipework OMM
FO transfer pps Drain bearing oil OMM
6112 Fuel Oil Storage
Asset Management Strategy Remove environmental contaminants from Fuel oil system
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
FO storage Run stocks of FO to minimum level PMA
Monitor FO storage tanks and distribution system for potential leaks prior to handover to FM for contactor final decommissioning OMM
FO Service Tank Run stocks of FO to minimum level PMA
Clean storage tanks of residual oil to eliminate potential leakrsquos to the environment during storage and de-commissioning Inspect internally prior to removal FM
Appendix B NPS Make Safe Manual Correcteddocx - 20 -
612 Ash System
6121 Sluice Pumps
Asset Management Strategy
Drain systems to minimise internal corrosion and marine growth
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 HP amp LP Sluice pump pipework Drain all pipework and dry store OMM
2 LP Sluice Pumps Isolate pumps OMM
3 HP Sluice pumps Drain pump bodies and dry store OMM
6122 Hoppers
Asset Management Strategy
Reduce the risk of ash hang ups and internal hopper corrosion during an Care period
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 Third pass Wash out hoppers after shutdown and dry store Remove E vvrsquos OMM
2 Primary Air Heater Hoppers
Wash out hoppers after shutdown and dry store Remove E vvrsquos OMM
3 Secondary Air Heater Hoppers
Wash out hoppers after shutdown and dry store Remove e vvrsquos OMM
Appendix B NPS Make Safe Manual Correcteddocx - 21 -
4 Precip Hoppers
Remove E Valves Wash down Precip and Hoppers dry out with hopper heater for 24 hours and isolate heaters and dry store OMM
5 Ash Transfer Plant
Empty and wash out vessels dry store Isolate all Electrical and Air Supplies to Ash Transfer plant OMM
6 Ash Silo Empty and wash out vessels dry store Isolate all electrical supplies to Silo OMM
6123 Precips
Asset Management Strategy Remove environmental contaminants from Precipitators
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Internals Full wash of Precip internals Open doors and allow to dry OMM
Rappers Drain oil from rapper gearboxes OMM
6124 Deasher
Asset Management Strategy Remove environmental contaminants from Deashers
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
De-asher
Remove the de-asher to the maintenance position and wash out for dry store Barricade bottom of boiler to restrict access while de-asher removed OMM
Appendix B NPS Make Safe Manual Correcteddocx - 22 -
7
Crusher
Wash out ash crusher
OMM
De-asher Drain oil from hydraulic units OMM
Crusher Drain oil from crusher gearbox OMM
6125 Ash Pit
Asset Management Strategy
Maintain storm water control for the duration of decommissioning
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Ash pit
Install a suitably sized submersible pump connected to one of the Ash Pond discharge pipes to cater for rain events prior to handover to FM and contractors for final decommissioning
OMM
Electrical Systems
71 Control Systems
Asset Management Strategy Minimise the risk of residual power sources associated with the control systems
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Appendix B NPS Make Safe Manual Correcteddocx - 23 -
Plant Description Proposed Actions Responsibility
FCS Battery systems Remove low voltage DC battery packs OMM
Fire Safety System Remove DC inverter OMM
72 Instrumentation
Asset Management Strategy Eliminate the risk of electric shock from residual power sources
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Instruments o2 press temp hydrogen analysers cameras oil flows water quality level
Remove tag with KKS amp Physical location and store in Instrument Workshop
OMM
AC Supply to FCS stations
Isolate AC supply to FCS stations
OMM
Inverter Supply Isolate and decommission Inverter supplies to Control System
OMM
73 DC System
731 220 V System
Asset Management Strategy Minimise the risk of DC Arc flash and LeadAcid hazards
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 24 -
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
220V Batt Charger and bank
Decommission battery charger and remove batteries Wash down battery stands and floors to remove residual sulphuric hazards OMM
732 110 V System
Asset Management Strategy Minimise the risk of DC Arc flash andndash LeadAcid hazards
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
110V Batt Charger and bank
Monitor 220v amp 110v battery systems until handover to FM and contactors for final decommissioning To be included in contractor agreement (Decommission battery charger and remove batteries once 275kV lines are decommissioned (line protection) Wash down battery stands and floors to remove residual sulphuric hazards) OMM
733 24 V System
Asset Management Strategy Minimise the risk of DC Arc flash andndash LeadAcid hazards
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
24V Batt charger and bank
Decommission battery charger and remove batteries Wash down battery stands and floors to
OMM
Appendix B NPS Make Safe Manual Correcteddocx - 25 -
I I
remove residual sulphuric hazards
74 HV
741 High Voltage Disconnections
Asset Management Strategy Apply a perimeter isolation to the 275132kV switchyards to Eliminate risk of Electric Shock by disconnecting all HV supplies at major terminal points in switchyards Eliminate the possibility of a transformer oil spill to the surrounding environment
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
275kV supply
Maintain protection systems for 275kV system until handover to FM to arrange disconnection agreement with Electrenet OMM
132kV Disconnect from House transformer OMM
75 Switchboards
751 66 kv
Asset Management Strategy To remove any kinetic energy stored in the 66kV switchgear
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Appendix B NPS Make Safe Manual Correcteddocx - 26 -
66 Breakers Rack out breakers and discharge spring tension OMM
76 Transformers
Asset Management Strategy
Eliminate the possibility of a transformer oil spill to the surrounding environment
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
275kV Transformer
Isolate 275kV at connection point at switchyard
OMM
Monitor all transformers for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Drain all transformer oil and box up transformer case )
OMM
132kV Transformer (House)
Monitor all transformers for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Drain all transformer oil and box up transformer case )
OMM
77 Diesel Generators
Asset Management Strategy Remove the Diesel Generators from service
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Appendix B NPS Make Safe Manual Correcteddocx - 27 -
8
Plant Description Proposed Actions Responsibility
Diesel Generators
Monitor Diesel Gensets for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Remove Gensets from service) OMM
Station Auxilliaries
81 Aux blr
Asset Management Strategy Remove any remaining residual contaminants
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Aux Boiler Fuel Oil Tank
Monitor Aux Boiler FO system for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Drain Aux Boiler FO tank) OMM
82 Compressed Air System
Asset Management Strategy Shut down assets and depressurise the system and remove environmental contaminants
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 28 -
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Air compressors
Monitor Compressors for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Decommission compressors and separators) FM
83 Water treatment plant
Asset Management Strategy Remove any remaining residual contaminants Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Reverse Osmosis Plant
Decommission and store in accordance with OEM recommendation
OMMSSCS
Water treatment Plant
Drain all vessels remove all resins chemical and dispose of Dry store all tanks and vessels
Remove all Resin and put to land fill OMMSSCS
84 Fire protection System
Asset Management Strategy
Decommission fire protection system and remove environmental contaminants
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Appendix B NPS Make Safe Manual Correcteddocx - 29 -
I I
Plant Description Proposed Actions Responsibility
Fire feedwater Isolate town water to fire pumps and drain all mainfolds OMM
Fire Deluge System
Drain fire system at fire pump discharge and at each deluge system OMM
Diesel Fire Pump Decommission drain fuel engine oil and coolant OMM
Electric fire pumps Isolate and decommission OMM
Fire detection system
Isolate and decommission fire detection system including the removal of DCP lead acid batteries OMM
Fire Halon systems
Decommission and remove Halon cyclinders from control room under floor system OMM
Vesda detection system Decommission and remove backup batteries OMM
Portable fire extinguishers
Monitormaintain all fire extinguishers until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Remove all fire extinguishers for site and dispose of) OMM
85 Cranes and Lifts
Asset Management Strategy Decommission and de-register lifts and cranes in preparation for demolition
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Appendix B NPS Make Safe Manual Correcteddocx - 30 -
All Lifts Maintain operation of Turbine Hall and Boiler lifts until handover to FM and contactors for decommissioning
To be included in contractor agreement All lifts to be decommissioned OMM
NPS Cranes Monitor all cranes and hoists for potential oil leaks prior to handover to FM and contractors for decommissioning To be included in contractor agreement (Drain oil from all cranes and hoist gearboxes and decommision) OMM
86 TW and Drains system
Asset Management Strategy
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Contaminated Drains Pit and associated pumps
Maintain in normal operation This ensures any run off from rain event do not carry any pollutants into the surrounding environment without being removed in the contaminated drains pits until handover to FM and contractors for decommissioning Note Once supply to CW switch room is decommissioned the oil skimmer in the sump will no longer operate To be included in contractor agreement (Decommission the contaminated drains system and settling pond) OMM
Condenser Sumps
Installation of temporary submersibles needed to maintain sumps dry if required Note Once Turbine 415V boards are decommissioned sump pumps will no longer operate OMM
87 Stack
Asset Management Strategy
Ensure we meet aviation standards of Stack lighting after Closure
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 31 -
9
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Stack
Provide alternative lighting of the stack to comply with CASA minimum standard for Aviation requirements OMM
Services
91 Workshops
Asset Management Strategy Minimise any hazards that may impact on demolition crews and chemicalgas hazards to surrounding environs
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Tubemakers Storage shed
Inventory and remove all plant tools and equipment for disposal
Salvage all materials held in store
Review and approve contractor demolition plan including sewage system OMM
Appendix B NPS Make Safe Manual Correcteddocx - 32 -
decommissioning and site rehabilitation
Garage Workshop
Decommission all Electrical supplies town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
OMM
Mitsubishi Spares Shed
Decommission all Electrical supplies town water systems to store
Remove all stock and spares for disposal
OMM
Cylinder Store Compound
Remove all stock of gas cylinders and return to suppliers
OMM
Coal Line and Electrical Workshop
Maintain Electrical supplies town water and black water systems to workshop for third party transfer
Inventory and remove all plant tools and equipment for disposal
OMM
Mills Workshop
Decommission all Electrical supplies town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
OMM
Plant Workshop
Decommission all Electrical supplies town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
OMM
Plant Tools and equipment disposal
Commission an auction house to promote and conduct a plant tools and equipment disposal on site on behalf of Alinta OMM
Residual plant tools and equipment
Non disposlable item to be scrapped and removed from site by merchant OMM
92 Heavy machine and Mobile Plant
Appendix B NPS Make Safe Manual Correcteddocx - 33 -
Asset Management Strategy Minimise any hazards that may impact on demolition crews
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Heavy Plant
Inventory heavy plant items and place on consignment with Heavy Machinery reseller This to be done in parallel with Dozing operations on the residual coal stocks held on APS stockpile OMM
Mobile Plant Inventory mobile plant items and place on consignment with Heavy Machinery reseller OMM
Light Vehicle
Develop a light vehicle return strategy as vehicle leases expire sufficient vehicle to conduct Care to Closure activities return all vehicles at the commencement of demolition phase OMM
93 Admin
Asset Management Strategy Minimise any hazards that may impact on demolition crews
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
PA system throughout the workshop offices station and general site
Required for site communications emergency notices and evacuations by skeleton staff
OMM
94 Document information and management
Asset Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 34 -
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Documents Determine what data is required to be stored OMM
Determine where the data will be stored OMM
Historical interest data
Determine who would be interested in taking this PMAPS
Pressure Vessel registration
Advise Worksafe SA when plant is decommissioned OMM
95 Security
Asset Management Strategy To continue site security until such time as Third parties take control
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Security Maintain Security contract OMM
10 Infrastructure of Interest
The following infrastructure and plant has been identified as possibly of Interest to Third Party users after Closure
Appendix B NPS Make Safe Manual Correcteddocx - 35 -
101 CW System
Asset Management Strategy To identify the system requirements of the CW plant for continued use by third party
Assumptions Third party will own operate and maintain CW infrastructure including power supplies and EPA
license requirements
Plant Description Consequential Plant Responsibility
1
Sluice ACW and Sundrop pumps
Power supply ndash 66kV415v transformer will be decommissioned as part of the demolition process Alternative power supply will need to be established to continue operation
OMMThird Party
2
Contaminated drains system
To ensure any contaminent spillage is prevented from entering the surrounding environs The transfer pump pit will remain connected to the 11kV ring feed however the transfer pumps at the Contaminated drains settling pond is currently fed from the town water switch room which will be decommissioned Alternative power supply will need to be established at the settling pond for this system to remain operational
OMMThird Party
102 Workshops
Asset Management Strategy To identify the system requirements of the Workshops at NPS for continued use by third
party
Assumptions Third party will own operate and maintain Workshop buildings including power supplies Town
water and Black water system
Plant Description Consequential Plant Responsibility
Workshops
Town water reticulation will need to be dispersed between third parties with separation of metering points Black water system backbone will need to be retained Existing Power supplies may be disconnected during demolition 11kV 415v pad mount will
OMMThird Party
Appendix B NPS Make Safe Manual Correcteddocx - 36 -
need to be installed at the WTP to supply the Mech workshop Existing 11kV 415v pad mount power supply to Electrical workshop should remain if required
103 Water storage tanks
Asset Management Strategy To identify the functionality requirements of the Town Water storage tanks for continued use
by third party
Assumptions Third party will own operate and maintain Town Water storage tanks including water connection
and agreement with SA Water
Plant Description Consequential Plant Responsibility
Town water storage tanks
Town water supply from SA Water Alternative power supply for TW switchroom and associated pumps will be required to keep this plant operational
OMMThird Party
104 PPS Diesel Fire pumps
Asset Management Strategy To identify the functionality requirements of the PPS Fire diesel pumps for continued use by
third party
Assumptions Third party will own operate and maintain PPS Fire Diesel pumps including power supplies and
EPA license requirements
Plant Description Consequential Plant Responsibility
PPS Fire Diesel pumps
Diesel pumps are a standalone system and can be plumbed to suit delivery where required
OMMThird Party
11 Appendix
111 Legal and other Requirements
1111 Legislation and Strategies
Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 37 -
Comply with all Legislation and Lease agreements during the Closureremediation process
Controls
Item Proposed Actions Responsibility
1 NorthernPlayford Generating Plant Lease PMAPS
2 NorthernPlayford Land Lease PMAPS
3 Environmental Compliance Agreement PMAPS
4 SA Generation Licence PMAPS
5 EPA Licences PMAPS
6 AEMO Certification PMAPS
7 Pressure Vessel Registrations PMAPS
8 Crane Registrations PMAPS
9 WHS Act amp Regulations PMAPS
10 Code of Practice ndash Demolition Work PMAPS
1112 Alinta Policies
Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 38 -
Controls
Item Description Proposed Actions Responsibility
1
Compliance Guideline HSSE-019 Demolition and Decommissioning Adhere to Alinta Policy PMAPS
112 References
Item Document Responsibility
1 Care to Closure Risk Assessment PMAPS
2 NPS Care to Closure Plan PMAPS
3 PPS Hibernation Manual PMAPS
4 PPS Closure Manual PMAPS
5 NPS Lube schedules PMAPS
6 Inspection and Audit sheet PMAPS
7 APS Sewerage and Septic systems (Sharepoint) PMAPS
8 APS Contaminated Drains system (Sharepoint) PMAPS
9 APS Transmission line layout (Sharepoint) PMAPS
Appendix B NPS Make Safe Manual Correcteddocx - 39 -
113 Project Plan
114 NPS Administration
1141 NPS Isolations
Asset Management Strategy
To wind back plant and system isolations to Perimeter isolationsdisconnections
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Item Proposed Actions Responsibility
Resource plan Track actions against plan OMM
1142 NPS Closure Audit
Asset Management Strategy
To provide an Auditable record of controls put in place to render the site as safe as reasonably practical for salvagedemolition
Controls
The following Controls have been identified to
Item Proposed Actions Responsibility
1 Raise work orders for each control action OMM
Appendix B NPS Make Safe Manual Correcteddocx - 40 -
2 Complete Inspection amp Audit sheets as each system is made safe OMM
115 NPS Residual Risks
Management Strategy
To highlight to the salvagedemolition third parties any Residual risks remaining that are beyond the Alinta Energy Closure workscope
Item Residual Risks Responsibility
Stack Aviation lighting requirements will need to be met until the stack is demolished PMAPS
Boiler structure Aviation lighting requirements will need to be met until the boiler is demolished PMAPS
Boiler burners Asbestos sheet gaskets exists between each burner and the boiler front (48 in total) PMAPS
66 Breakers Contain asbestos backing boards PMAPS
Air Heaters Bearing oil baths will contain oil PMAPS
Mill Spring pits The Gerb springs supporting the Mills contain a thick composite oil in the damper packs PMAPS
Underground Fuel tanks
There is an underground petrol tank at the SE corner of the NPS Store PMAPS
Transformers Some of the 415V transformers contain Freon gas PMAPS
Fire deluge system
There are some mercury switches used in the Fire deluge systems PMAPS
Appendix B NPS Make Safe Manual Correcteddocx - 41 -
Generator circuit breakers The generator CBrsquos contain SF6 gas PMAPS
Appendix B NPS Make Safe Manual Correcteddocx - 42 -
Appendix C
alintaSFE everyone every day every job Zero Harm
Augusta Power Station
Playford Facility
Closure Manual
Revision Date Description Prepared by Reviewed by Approved by
A 1915 First Draft
B 51016 Corrections
C
Distribution List
Augusta Management Team
Closure Manual ndash PPS
Index
1 Introduction 3
2 Closure Philosophy 3
3 Closure Strategy 3
4 Responsibilities 3
5 PPS Closure 4
51 Turbine Generator 4
511 Turbine 4
512 Condenser Sea Side 5
513 Condenser Condensate Side 5
514 Turbine Valves 6
515 Generator 6
516 Turbine Auxiliaries 7
52 Boiler 8
521 Boiler Systems 8
522 Feedwater Systems 9
523 Boiler Feed Pumps (BFP) 9
524 Draught Plant 10
53 Station Auxiliaries 11
531 Electrical 11
532 Coal Systems 17
533 Fuel Oil 19
534 Ash Systems 20
535 Compressed Air 22
536 CW Systems 22
537 Water Treatment Plant 24
538 Town Water and Drains 25
539 Fire Protection system 25
5310 Workshops and Offices 26
6 Appendix 27
61 Legal and other Requirements 28
611 Legislation and Licences 28
612 Alinta Policies 29
613 References 29
62 Project Plan 29
63 PPS Administration 29
631 PPS Registered Plant 29
632 PPS Isolations 30
633 Closure Audit 30
7 PPS Residual Risks 31
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 2 -
1 Introduction
The Playford Power Station began operation in the early 1960rsquos as a Base load Station through to the late 1980rsquos It then began operating as reserve generation for peak demand periods through to 2012 PPS was then placed into Hibernation on a 90 day recall With the continuing market supply from Wind and Solar generation it was announced in 2015 that Playford along with NPS is no longer required and will be Shutdown and Decommissioned and the site Remediated in line with the Generating Lease Agreement
2 Closure Philosophy
The Closure plan seeks to facilitate the removal of the Power Station infrastructure to manage all of the Asset removal with no impact on the surrounding environsrsquo meet all condition of the Lease Agreement and Legislative requirements
Alinta acknowledges that the demolition and site rehabilitation works are deemed to be lsquoHigh Riskrsquo work activities and will ensure appropriate management of this work in accordance with WHS Act 2012 and Regulations
Alinta will ensure the key principle of lsquoZero Harmrsquo will be embedded in all activities associated with the Closure Disposal and Remediation of the APS site in accordance with the Lease Agreement
3 Closure Strategy
The Closure Strategy will be to remove all foreseeable hazards remaining at PPS to make the plant Safe to the environment and SalvageDemolition personnel during the remediation programme by completing the activities outlined in this document
4 Responsibilities
The lsquoFacilities Managerrsquo will seek approval of Closure plans and allocate resources to implement the effective management and closure of the PPS site to meet the lease agreement Communicate the sequence and timing of activities in accordance with this plan to internal stakeholders and external parties as required
The lsquoFacilities Remediation Project Managerrsquo will consult and liaise with the Demolition and Remediation contractors on site and will be supported by a number of Technical Specialists and Contract Administrators
The `Facilities Safety and Environment Managerrsquo will develop the framework for `High Riskrsquo demolition works and ensure subcontractors comply with all legislative requirements associated with the remediation works
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 3 -
5 PPS Closure
51 Turbine Generator
511 Turbine
5111 Lube Oil Systems
Asset Management Strategy Minimise residual hazards remaining in the Lube oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
TG Lube Oil systems
Plant Description Proposed Actions Responsibility
Main Oil tank InspectRemove any residual oil from the main oil tanks
Lube oil pipework
InspectRemove any residual oil from the lube oil pipework system
Oil centrifuges Drain gearbox oil and empty oil from bowl
5112 Seal Oil Systems
Asset Management Strategy
Minimise residual hazards remaining in the Seal oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Seal Oil system
Plant Description Proposed Actions Responsibility
Seal Oil tank InspectRemove any residual oil from the Seal oil tanks
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 4 -
Seal oil pipework
InspectRemove any residual oil from the Seal oil
pipework system
Seal oil vac pprsquos Drain oil from pprsquos
512 Condenser Sea Side Asset Management Strategy
Minimise build up of toxic gases from decomposed marine growth in the Condenser
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Condenser water boxes Open doors and drains on condensers and air dry
Check for gases in water boxes prior to demolition
513 Condenser Condensate Side Asset Management Strategy
Minimise the risk of build up of gases in this space
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 5 -
Plant Description Proposed Actions Responsibility
EE Condensers Open up condensate drains
Stal condensers Open up drains
Condensate gases Check for gases in condensate space prior to demolition
514 Turbine Valves
Asset Management Strategy
Minimise residual hazards remaining in the Valve Control oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Turbine Stop valves Drain all control oil
Turbine Throttle valves Drain all control oil
515 Generator Asset Management Strategy
Prepare Generators for demolition
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 6 -
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Generator Remove all access doors and open to atmosphere
Check for gases in generator space prior to demolition
Exciter breaker Release kinetic energy in exciter breaker
516 Turbine Auxiliaries Asset Management Strategy
Eliminate the possibility of gases andor pressure build up in the system during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
EE DC Htr and DC htr ext pps Open all drains and vents
Drain oil from pp bearings
Shunt DA pprsquos Drain oil from bearings
EE LP1 htr Open all drains and vents
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 7 -
Stal Gland leakage condensers DC Htr and DC htr ext pps Open all drains and vents
Stal Gland steam cooler Open all drains and vents
Stal Ejector condensers Open all drains and vents
Stal Gland leakage condensers and clean drains tank Open all drains and vents
Stal Auxillary steam vessels Open all drains and vents
All Vessels Check for gases in all Auxiliary vessel spaces prior to demolition
52 Boiler
521 Boiler Systems
5211 Pressure Parts
Asset Management Strategy
Minimise possibility of gases andor pressure build up in the system during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Boiler Tubes and Drums
Open top and bottom drum doors and open all vents and drains
Check for gases in all spaces prior to demolition
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 8 -
Sootblowers Drain sootblower gearbox oil
522 Feedwater Systems
5221 HP Heaters
Asset Management Strategy
Minimise possibility of gases andor pressure build up in the system during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
HP heaters Remove loop pipes from heaters
Open body drains and vents
Check for gases in hp heater space prior to demolition
Boiler dosing pprsquos Drain oil from pprsquos
523 Boiler Feed Pumps (BFP)
Asset Management Strategy
Minimise any residual hazards remaining in the Boiler Feed pumps
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 9 -
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Boiler feed pumps - Mather amp Platt Drain bearing oil reservoirs
Boiler feed pumps - Sulzer Drain bearing oil reservoirs
Feed pump headers ndash suction and discharge Open all drains and vents and sectionalising valves
Check for gases in all feed water header spaces prior to demolition
Steam driven feed pp Drain oil from bearings
524 Draught Plant
Asset Management Strategy
Minimise any residual hazards remaining in the Draught Plant
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
FD Fans Drain oil from FD fan bearings on Blr 12 amp 3 Note 45 amp 6 have greased bearings
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 10 -
53 Station Auxiliaries
531 Electrical
5311 DC Systems
Asset Management Strategy
Minimise the risk of DC ndash LeadAcid hazards to demolition crew
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
DC batteries A Station 110 volt Remove all LeadAcid batteries
DC batteries B Station 110 volt Remove all LeadAcid batteries
DC batteries B Station UPS Remove all LeadAcid batteries
Diesel generator 24 volt batteries two banks Remove all LeadAcid batteries
Diesel 24 volt Emergency Start Relay batteries Remove all LeadAcid batteries
Diesel Fire Pump Batteries Remove all LeadAcid batteries
DC batteries Station Fire System Remove all LeadAcid batteries
Terminal Room Remove all LeadAcid batteries
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 11 -
Decommission and remove all 132kV line protection devices Electranet
Diesel generator Drain oil and coolant
5312 Switchboards ndash 33kV amp 415V
Asset Management Strategy
To remove any kinetic energy stored in the 33kV switchgear and to supply an alternative power supply for limited emergency lighting and dewatering
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
33kV Breakers Discharge all spring loaded devices This will be done by operators when isolating the station PMA
5313 Power Transformers
Asset Management Strategy
Apply a perimeter isolation to the 275132kV AampB station switchyards to Eliminate risk of Electric Shock by disconnecting all HV supplies at major terminal points in A amp B station switchyards Eliminate the possibility of a transformer oil spill to the surrounding environment
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 12 -
275 kV step up tfrsquos Disconnect step up transformer B1 at 275kV droppers Comp
Disconnect step up transformer B2 at 275kV droppers Comp
Disconnect step up transformer B3 at 275kV droppers Comp
Disconnect step up transformer at B4 275kV droppers Comp
275kV Nth tie transformer disconnect from 275kV droppers
132kV System Disconnect points at isolators of AS2 AS4 amp disconnect cables at 11kV tertiary terminals at Nth tie transformer De-energised
33 kV to 415 volt transformers Drain all transformers and dispose of transformer oil
275 kV step up tfrsquos Drain all transformers and dispose of transformer oil
13211kV transformers
Drain transformers in A Stn switchyard (2 x 13211kV and old spare near canteen)
5314 DCSControl SystemsAlarms
Asset Management Strategy
Minimise the risk of residual power sources
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Processors Low voltage batteries to be removed
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 13 -
DC inverter batteries Remove batteries
5315 Actuators
Asset Management Strategy
Minimise risk of oil spill to environment during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Drain actuators of oil
5316 BH1 amp Compressor Equipment
Asset Management Strategy
Minimise any pressure hazards in the compressor system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
BH1 Compressor Shutdown compressor and drain Air recievers
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 14 -
Breaker Unplug from breaker housing
5317 11Kv Ring Main Equipment
Asset Management Strategy
Remove environmental contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Stator 11kV switchgear Drain oil
11kV transformers Drain oil
5318 Lifts amp Cranes
Asset Management Strategy
Decommission and de-register lifts and cranes in preparation for demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
B stn Nth and Sth lifts Deregistration
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 15 -
Degas air conditioners
Drain gearbox oil
Drain gearbox oil
PPS Cranes Drain oil from gearboxes
De-register cranes
5319 Public Address System
Asset Management Strategy
Isolate from NPS system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
PA system Disconnect PA system
53110 BE09BE10 33kV Switchgear
Asset Management Strategy
Remove environmental contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 16 -
Plant Description Proposed Actions Responsibility
Stator 33kV switchgear Drain oil
33kV transformers Drain oil
53111 132Kv System
Asset Management Strategy
To remove the DC power supplies to the 132kV protection equipment located in the A stn terminal room
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
132kV protection equipment Relocated by Electranet to a suitable location Electranet
132kV System Disconnect points at isolators of AS2 AS4 amp disconnect cables at 11kV tertiary terminals at Nth tie transformer
532 Coal Systems
5321 Coal Feeders
Asset Management Strategy
To minimise environmental hazards
Controls
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 17 -
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Feeder gearbox Drain gearbox oil
5322 Coal Conveyors
Asset Management Strategy
Remove environmental contaminants and kinetic energy from the coal system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Conveyors Drain gearbox oils (Note detailed risk assessment for access required due to condition of towers)
Wash down all conveyors
Release take up assemblies
Trippers Drain gearbox oils (Note detailed risk assessment for Bin access required due to condition of towers)
Ploughs Drain gearbox oils
Towers Wash down all towers
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 18 -
5323 Bins amp Bunkers
Asset Management Strategy
Minimise environmental hazards Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Bins Wash out bins
533 Fuel Oil
Asset Management Strategy
Remove environmental contaminants from Fuel oil system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Oil guns Remove and drain oil guns
FO Pipework Drain FO pipework ndash pump degreaser through system
FO transfer pprsquos Drain strainers
FO storage See NPS Closure Manual
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 19 -
534 Ash Systems
5341 Ash pumps amp pit
Asset Management Strategy
Maintain dewatering in B stn basement during salvagedemolition activities via an alternative power supply
Controls The following Controls have been identified to maintain site de-watering during SalvageDemolition operation
Plant Description Proposed Actions Responsibility
Alternative power supply
Install temporary generator for ash pumpde-watering pumps and emergency lighting
Ash pump Alternative power supply andor pump required after site power system shut down
5342 HP amp LP Sluice pumps
Asset Management Strategy
Remove environmental contaminants from sluice pumps
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
HP sluice pumps Drain oil from bearing reservoirs
LP sluice pumps Drain oil from bearing reservoirs
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 20 -
5343 Ash Hoppers
Asset Management Strategy
Remove environmental contaminants from hoppers
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Screw conveyors Drain gearbox oils
5344 Deashers
Asset Management Strategy
Remove environmental contaminants from Deashers
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Deashers Drain gearbox oils
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 21 -
535 Compressed Air
Asset Management Strategy
Shut down assets and depressurise the system and remove environmental contanimants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
No 1 amp 2 Compressors Drain oil from air ends and separators
Sth and SW compressors Drain oil from air ends and separators
Air receivers De-pressurise and Open drainvent valves on GS air receivers
De-pressurise and Open drainvent valves on Blr FF air receivers and pulse tanks
De-pressurise and Open drainvent valves on TG air receivers
536 CW Systems
5361 CW Pumps
Asset Management Strategy
Remove environmental contaminants from CW pumps
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 22 -
Plant Description Proposed Actions Responsibility
CW pumps Drain oil from bearings
5362 CW Chambers
Asset Management Strategy
Isolate the gulf waters from the basement
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Chamber
Controls to manage isolation between gulf and basement to be developed Currently spades inserted on CW pump outlets
5363 CW Screens
Asset Management Strategy
Remove environmental contaminants from CW screens
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
CW Screens Drain gearbox and fluid drive oils
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 23 -
537 Water Treatment Plant
Asset Management Strategy
Remove any remaining residual contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Anion tanks Remove and dispose of resin
Mixed bed vessels Remove and dispose of resin
Cation tanks Remove and dispose of resin
Sand filters Remove and dispose of sand
Carbon filters Remove and dispose of Anthracite
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 24 -
538 Town Water and Drains Asset Management Strategy To maintain basement de-watering during salvagedemolition operation
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Sump pumps Install temporary generator for sump pumps
De-watering pump Install temporary generator for de-watering pump
Contaminated drain tank
Pump out Contaminated drain tank after all oils drained from station
Black water system
Disconnect connection from NPS feedline from A stn sewerage tank and Workshopstores sewerage tank Pump out existing tanks in preparation for demolition
Town Water storage tanks Drain water tank
TW supply Isolate TW supply from NPS and SA Water
Hot Water services Drain Workshop and office HWSrsquos
539 Fire Protection system
Asset Management Strategy
Decommission fire protection system and remove environmental contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 25 -
Plant Description Proposed Actions Responsibility
Fire system Advise FM Global of change in status from insured to uninsured facility
Diesel Fire Pumps See NPS Closure Manual `Infrastructure of Interestrsquo
Water storage tank Drain water tank
FM500 system Decommission and remove cylinder
Accumulator Decommission Accumulator at Fire Diesels
33kV room compressor Drain oil from compressor
Fire extinguishers Remove all fire extinguishers
5310 Workshops and Offices
Asset Management Strategy
Minimise any hazards that may impact on demolition crews
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Item Proposed Actions Responsibility
PPS Fitting Shop
Decommission all Electrical supplies air-conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including asbestos removalmanagement sewage system decommissioning and site rehabilitation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 26 -
PPS Boiler Shop and Spares Store
Decommission all Electrical supplies air-conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including asbestos removalmanagement sewage system decommissioning and site rehabilitation
PPS Electrical Shop
Decommission all Electrical supplies air-conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including asbestos removalmanagement sewage system decommissioning and site rehabilitation
Kaefers Workshop
Decommission all Electrical supplies air conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including sewage system decommissioning and site rehabilitation
Grit Blasters Facility
Decommission all Electrical supplies town water systems to facility
Inventory and remove all plant tools and equipment for disposal
Offices Decommission Air Conditioners
Salvage and dispose of furniture and fittings
Remove paperwork required to be kept to comply with Statutory obligations
Equipment rooms Decommission Air conditioners
6 Appendix
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 27 -
61 Legal and other Requirements
611 Legislation and Licences
Management Strategy
Comply with all Legislation and Lease agreements during the Closureremediation process
Item Document Responsibility
1 NorthernPlayford Generating Plant Lease
2 NorthernPlayford Land Lease
3 Environmental Compliance Agreement
4 SA Generation Licence
5 EPA Licences
6 AEMO Certification
7 Pressure Vessel Registrations
8 Lifts Registrations
9 WHS Act amp Regulations
10 Code of Practice ndash Demolition Work
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 28 -
612 Alinta Policies
Item Policy Responsibility
1 Compliance Guideline HSSE-019 Demolition and Decommissioning
613 References
Item Documents Responsibility
1 Care to Closure Risk Assessment
2 NPS Care to Closure Plan
3 PPS Hibernation Manual
4 Inspection amp Audit Sheet
62 Project Plan
63 PPS Administration
631 PPS Registered Plant
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 29 -
Management Strategy
To De-commission and de-register registered Plant
Controls
Item Proposed Actions Responsibility
1 Advise Safework SA in writing of pressure vessels that have been decommissioned
2 Advise Safework SA in writing of Lifts that have been decommissioned
632 PPS Isolations
Management Strategy
To wind back plant and system isolations to Perimeter disconnections
Controls
Item Proposed Actions Responsibility
Existing isolations Clear isolations and remove isolation tags from plant
633 Closure Audit
Management Strategy
To provide an Auditable record of controls put in place to render the site as safe as reasonably practical for salvagedemolition
Controls
Item Proposed Actions Responsibility
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 30 -
7
1 Raise work orders for each control action
2 Complete Inspection amp Audit sheets as each system is made safe
PPS Residual Risks
Management Strategy
To highlight to the salvagedemolition third parties any Residual risks remaining that are beyond the Alinta Energy Closure workscope
Item Residual Risks Responsibility
Boiler insulation Contains Asbestos
WorkshopAdmin building materials Contains asbestos
Basement flooding Seawater seepage into basement
Tunnels Cable tunnels exist between Turbine halls and switchyards
Bag Filters
Bags may still be impregnated with ash potential dust problem on demolition Residual Ash may be present in hoppers
PPS Seawall
Vehicle access to sea side of B Station has been closed due to condemned seawall pillings Will present problems to make safe works in this area
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 31 -
Appendix D
everyone every day every jab Zero Harm
0
i t------------t i t--------t
i
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
5 51
52
53
54
55
System
TurbineBoiler Unit Turbine
Turbine oil systems
Condenser condensate side
Condenser seawater side
Turbine valves
Generator Barring gear
Hydrogen system
CW system CW Pumps
CW Ducts
Feedwater system LP Feedwater
Condensate Polishing Plant
Blr Feed Pumps
HP heaters
Feed make up system
Boiler
Task Name
Ensure all SWMS amp Risk assessments are reviewed and All Personnel signed onto Isolation permits prior to commencing work
NPS Care Closure NPS Unit 1 Care - Project No
TurbineBoiler Unit Turbine
Turbine off
Turbine oil systems
Lube oil system to remain operational
Seal oil system to remain operational
Condenser condensate side
Isolation
Open doors
Condenser seawater side
Drain seawater side of condenser
Turbine valves Isolation
Unit Care - Turbine complete
Generator Barring gear
Run on Barring gear to prevent rotors sagging
Hydrogen system Decommision hydrogen system and purge generator
Unit Care - Generator complete
CW system CW Pumps
Isolation
CW Ducts Ducts to be maintained empty and dry per culvert dewatering system
Unit Care - CW System complete
Feedwater system LP Feedwater
Isolation - CEPs
LP htrs GS Condenser and LP Ejector Drain and store dry
Deaerator and DAFT Drain and store dry
Condensate Polishing Plant
Open vessels
Gas Clearance
Remove resins
Blr Feed Pumps Isolate and drain Feed pumps
HP heaters Isolation
Drain and store dry
Feed make up system
Isolation
Drain Make up tanks
Unit Care - Feedwater System complete
Boiler Boiler off
Duration
0 hrs
24038 hrs
1705 hrs
1705 hrs 725 hrs 1 hr
0 hrs
0 hrs
0 hrs
55 hrs
8 hrs
1 hr
275 hrs
4 hrs
0 hrs 3 hrs
0 hrs
3752 hrs 3752 hrs 120 hrs
1 hr 8 hrs
0 hrs
0 hrs 0 hrs 1 hr
0 hrs 8 hrs
0 hrs
33 hrs 5 hrs 1 hr
8 hrs
8 hrs
27 hrs
2 hrs
1 hr
24 hrs
625 hrs 8 hrs
7 hrs 6 hrs
8 hrs
6 hrs
2 hrs
8 hrs
0 hrs
5332 hrs 2 hrs
Page 1 of 12
39
40
41
42
43
44
45
46
47
48
49
50
a1middotn a s~FE everyone every day every jab Zero Harm
0 I I I
~ ~ i i i
~ ~ i i i
bfl - r r r - l l l
~ ~ i
i i ~ i
~ i
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-
I I I
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I I I
- -- L L L i -
i -
i -
-
-
i -
i -
i -
i I I I
- L ~
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
56
59
System
Pressure parts Storage
Furnace and Gas path
Draught Plant Air heaters
ID Fans
GR Fan
PA fan
SA fan
Ducts and dampers
ACW System Seawater side
Task Name
Pressure parts Storage
Control cool and drain boiler (in accordance with drainage schedule) Item 8
Isolation
Open boiler doors
Boiler gas clearances
Initiate sprays (pre wash) in Eco 1 amp 2
Furnace and Gas path
Sootblow 8 hrs prior to shutdown
Keep deasher in service for duration of wash
Remove Economiser e-valves
Gas Clearances
Furnace and economiser wash
External Wash down structure
Unit Care - Boiler complete
Draught Plant Air heaters
Shut down once core temp lt 100 degrees
Isolation
Remove dump vvs amp e-vvs
Deluge wash
Open doors
Gas Clearance
Manual internal wash
ID Fans Shut down amp Isolate once unit gas path is dry after precip wash - 48
Open doors
Gas Clearance
Washvocuum windboxes
GR Fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
PA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
SA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
Ducts and dampers
Isolation
Open doors
Gas clearances
WashVacuum GR outlet and precipitator outlet duct
Inspect all ducts and vacuum as required
Unit Care - Draught Plant complete
ACW System Seawater side
Duration
1932 hrs
8 hrs
4 hrs
682 hrs
2 hrs
6 hrs
5332 hrs
6 hrs
0 hrs
4 hrs
1 hr
24 hrs
275 hrs 8 hrs
0 hrs
1695 hrs 4798 hrs 2 hrs
2 hrs
4 hrs
2 hrs
4 hrs
1 hr
16 hrs
165 hrs 4 hrs
4 hrs
1 hr
8 hrs
105 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
1695 hrs
2 hrs
4 hrs
2 hrs
80 hrs
80 hrs
0 hrs
0 hrs 0 hrs 2 hrs Isolate amp drain and dry store (Unit)
Page 2 of 12
93
94
95
96
97
98
99
100
101
102
103
104
everyone every day every jab Zero Harm
0
~ ~ i ~ ~ i i ~ ~ i i ~ i 6tJ i i i ~ i ~ i i i ~ ~ i i i ~ ~ i i
i I-----
i 1------1
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i 1------1 i
~ i I-----
i I-----
i 1------lii i
i
- l
L
- L
l l
L L
L L
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual System Task Name Index No
Unit Care - ACW System complete
510 Coal System Coal System Bins amp Bunkers Bunkers
Run down bunker levels
Isolate Mill Feeders
Fit bunker emptying chute to EN Feeder chute
Empty EN bunker
Wash EN Bunker
Remove bunker emptying chute from EN
Fit bunker emptying chute to WN Feeder chute
Empty WN bunker
Wash WN Bunker
Remove bunker emptying chute from WN
Fit bunker emptying chute to EC Feeder chute
Empty EC bunker
Wash EC Bunker
Remove bunker emptying chute from EC
Fit bunker emptying chute to WC Feeder chute
Empty WC bunker
Wash WC Bunker
Remove bunker emptying chute from WC
Fit bunker emptying chute to ES Feeder chute
Empty ES bunker
Wash ES Bunker
Remove bunker emptying chute from ES
Fit bunker emptying chute to WS Feeder chute
Empty WS bunker
Wash WS Bunker
Remove bunker emptying chute from WS
Coal feeders Coal feeders Open EN Feeder
Gas clearance
Vac and wash out
Open WN Feeder vac and wash out
Gas clearance
Vac and wash out
Open EC Feeder vac and wash out
Gas clearance
Vac and wash out
Open WC Feeder vac and wash out
Gas clearance
Vac and wash out
Open ES Feeder
Gas clearance
Vac and wash out
Open WS Feeder
Gas clearance
Vac and wash out
Mills Mills Open EN Mill
Gas clearance
Wash out EN Mill - leave open to dry out
Open WN Mill
Gas clearance
Wash out WN Mill - leave open to dry out
Open EC Mill
Duration
0 hrs
7347 hrs 5487 hrs 4 hrs
8 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
4827 hrs 1 hr
1 hr
465 hrs
4 hrs
1 hr
4 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
74 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
832 hrs
5655 hrs 1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
Page 3 of 12
148
149
150
151
152
153
154
155
156
157
158
159
160
everyone every day every jab Zero Harm
0 i
1-------1~
1-------1 i
~ i 1-------1
i 1-------1
~ i 1-------1 i
1-------1~
i 1-------1
l-------16tl
1-------1~
i 1-------1
i 1-------1
1-------1~
i 1-------1
1-------1~
i 1-------1
i 1-------1 i 1-------1~
1-------1~
1-------1 ~ i
1-------1~
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
511
512
6 62
5 51
System
Fuel Oil FO pumps
Storage tanks
Ash system Hoppers
Precips
Deasher
Ash pitpumps
Electrical Systems Instrumentation
TurbineBoiler Unit Turbine
Turbine oil systems
Task Name
Gas clearance
Wash out EC Mill - leave open to dry out
Open WC Mill
Gas clearance
Wash out WC Mill - leave open to dry out
Open ES Mill
Gas clearance
Wash out ES Mill - leave open to dry out
Open WS Mill
Gas clearance
Wash out WS Mill - leave open to dry out
Release roller spring tension
Unit Care - Coal System complete
Fuel Oil FO pumps
Shut oil pumps down when unit OOS
Isolate fuel oil system
Clean filters and system
Drain FO system
Storage tanks Run down storage level (burn sell if possible)
Isolate
Unit Care - Fuel Oil complete
Ash system Hoppers
Run local manual dump
Open hopper doors
Precips Isolate
Remove Precip e-valves
Gas clearance
Full wash of internals - washing manifold
Store with air doors open for natural air circulation
Deasher Isolation
Gas clearance
Full wash of all internals store dry
Ash pitpumps Flush and pump down pit - leave available
Unit Care - Ash System complete
Electrical Systems Instrumentation
Build scaffold for furnace camera removal
Remove furnace camera
Dismantle scaffold after furnace camera removal
Unit Care - Electrical Systems complete
Unit 1 Care Complete
NPS Unit 2 Care - Project No TurbineBoiler Unit
Turbine Turbine off
Turbine oil systems
Lube oil system to remain operational
Seal oil system to remain operational
Duration
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
6 hrs
0 hrs
345 hrs 335 hrs 1 hr
1 hr
8 hrs
24 hrs
0 hrs 0 hrs
1 hr
0 hrs
629 hrs 629 hrs 8 hrs
3 hrs
525 hrs 4 hrs
24 hrs
1 hr
24 hrs
0 hrs
417 hrs 2 hrs
1 hr
2 hrs
0 hrs 0 hrs
0 hrs
14 hrs 14 hrs 4 hrs
8 hrs
2 hrs
0 hrs
0 hrs
18598 hrs
18598 hrs 2238 hrs 1 hr
0 hrs
0 hrs
0 hrs
Page 4 of 12
204
205
206
207
208
209
210
211
212
213
214
a1middotn a s~FE everyone every day every jab Zero Harm
0 I I I
~ i
~
~ - r r r - l l l
~
~ I I I
- l L l ~
~ I I I
- L L L ~ ~ ~
i i i
~
lii Iii
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I I I
-
Iii L L L -
lil ~ i i i
lil 6tl i i i
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
52
53
54
55
System
Condenser condensate side
Condenser seawater side
Turbine valves
Generator Barring gear
Hydrogen system
CW system CW Pumps
CW Ducts
Feedwater system LP Feedwater
Condensate Polishing Plant
Blr Feed Pumps
HP heaters
Feed make up system
Boiler
Pressure parts Storage
Furnace and Gas path
Task Name
Condenser condensate side
Isolation
Open doors
Condenser seawater side
Drain seawater side of condenser
Turbine valves Isolation
Unit Care - Turbine complete
Generator Barring gear
Run on Barring gear to prevent rotors sagging
Hydrogen system Decommision hydrogen system and purge generator
Unit Care - Generator complete
CW system CW Pumps
Isolation
CW Ducts Ducts to be maintained empty and dry per culvert dewatering system
Unit Care - CW System complete
Feedwater system LP Feedwater
Isolation - CEPs
LP htrs GS Condenser and LP Ejector Drain and store dry
Deaerator and DAFT Drain and store dry
Condensate Polishing Plant
Open vessels
Gas Clearance
Remove resins
Blr Feed Pumps Isolate and drain Feed pumps
HP heaters Isolation
Drain and store dry
Feed make up system
Isolation
Drain Make up tanks
Unit Care - Feedwater System complete
Boiler Boiler off
Pressure parts Storage
Control cool and drain boiler (in accordance with drainage schedule) Item 8
Isolation
Open boiler doors
Boiler gas clearances
Initiate sprays (pre wash) in Eco 1 amp 2
Furnace and Gas path
Sootblow 8 hrs prior to shutdown
Keep deasher in service for duration of wash
Remove Economiser e-valves
Gas Clearances
Furnace and economiser wash
Duration
617 hrs
8 hrs
1 hr
24 hrs
4 hrs
0 hrs 3 hrs
0 hrs
227 hrs 227 hrs 120 hrs
2 hrs 8 hrs
0 hrs
0 hrs 0 hrs 1 hr
0 hrs 8 hrs
0 hrs
33 hrs 617 hrs 1 hr
8 hrs
8 hrs
27 hrs
2 hrs
1 hr
24 hrs
557 hrs 8 hrs
757 hrs 6 hrs
8 hrs
717 hrs
2 hrs
8 hrs
0 hrs
543 hrs 2 hrs
203 hrs
8 hrs
4 hrs
713 hrs
2 hrs
6 hrs
543 hrs
6 hrs
0 hrs
4 hrs
1 hr
24 hrs
Page 5 of 12
255
256
257
258
259
260
261
262
263
264
265
266
a1middotn a s~FE everyone every day every jab Zero Harm
0
~ i - r r r - L L L
~ ~ i
i i ~
6 i
i
~ i i i
i i i
i i i
i i --
i i
~ -
- L L L ~ ~ i ~ i ~ i i i ~ i Iii i i
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
56
59
Isolate amp drain and dry store (Unit)
510
System
Draught Plant Air heaters
ID Fans
GR Fan
PA fan
SA fan
Ducts and dampers
ACW System Seawater side
Coal System Bins amp Bunkers
Task Name
External Wash down structure
Unit Care - Boiler complete
Draught Plant Air heaters
Shut down once core temp lt 100 degrees
Isolation
Remove dump vvs amp e-vvs
Deluge wash
Open doors
Gas Clearance
Manual internal wash
ID Fans Shut down amp Isolate once unit gas path is dry after precip wash - 48
Open doors
Gas Clearance
Washvocuum windboxes
GR Fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
PA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
SA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
Ducts and dampers
Isolation
Open doors
Gas clearances
WashVacuum GR outlet and precipitator outlet duct
Inspect all ducts and vacuum as required
Unit Care - Draught Plant complete
ACW System Seawater side
Unit Care - ACW System complete
Coal System Bunkers
Run down bunker levels
Isolate Mill Feeders
Fit bunker emptying chute to EN Feeder chute
Empty EN bunker
Wash EN Bunker
Remove bunker emptying chute from EN
Fit bunker emptying chute to WN Feeder chute
Empty WN bunker
Wash WN Bunker
Remove bunker emptying chute from WN
Duration
24 hrs 8 hrs
0 hrs
16917 hrs 4748 hrs 2 hrs
2 hrs
4 hrs
2 hrs
4 hrs
1 hr
16 hrs
13 hrs 4 hrs
4 hrs
1 hr
8 hrs
1067 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
16917 hrs
2 hrs
4 hrs
2 hrs
80 hrs
80 hrs
0 hrs
0 hrs 0 hrs 2 hrs
0 hrs
7347 hrs 5865 hrs 4 hrs
8 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
Page 6 of 12
309
310
311
312
313
314
315
316
317
318
319
320
321
a1middotn a s~FE everyone every day every jab Zero Harm
0 I I I i ~ ~ i i ~ ~ i i i ~ i ~ i i i 6 i ~ i
i i
i i
i
i - -- r r r i ~ L L L i i ~ I I I
i - - L L L
~ i i
~ i i
~ i
~ i
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual System Task Name Index No
Fit bunker emptying chute to EC Feeder chute
Empty EC bunker
Wash EC Bunker
Remove bunker emptying chute from EC
Fit bunker emptying chute to WC Feeder chute
Empty WC bunker
Wash WC Bunker
Remove bunker emptying chute from WC
Fit bunker emptying chute to ES Feeder chute
Empty ES bunker
Wash ES Bunker
Remove bunker emptying chute from ES
Fit bunker emptying chute to WS Feeder chute
Empty WS bunker
Wash WS Bunker
Remove bunker emptying chute from WS
Coal feeders Coal feeders Open EN Feeder
Gas clearance
Vac and wash out
Open WN Feeder vac and wash out
Gas clearance
Vac and wash out
Open EC Feeder vac and wash out
Gas clearance
Vac and wash out
Open WC Feeder vac and wash out
Gas clearance
Vac and wash out
Open ES Feeder
Gas clearance
Vac and wash out
Open WS Feeder
Gas clearance
Vac and wash out
Mills Mills Open EN Mill
Gas clearance
Wash out EN Mill - leave open to dry out
Open WN Mill
Gas clearance
Wash out WN Mill - leave open to dry out
Open EC Mill
Gas clearance
Wash out EC Mill - leave open to dry out
Open WC Mill
Gas clearance
Wash out WC Mill - leave open to dry out
Open ES Mill
ltNew Taskgt
Wash out ES Mill - leave open to dry out
Open WS Mill
Gas clearance
Wash out WS Mill - leave open to dry out
Release roller spring tension
Unit Care - Coal System complete
Duration
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
509 hrs 1 hr
1 hr
465 hrs
4 hrs
1 hr
4 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
75 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
832 hrs
554 hrs 1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
8 hrs
8 hrs
1 hr
1 hr
8 hrs
6 hrs
0 hrs
Page 7 of 12
365
366
367
368
369
370
371
372
373
374
375
376
377
everyone every day every jab Zero Harm
0
~ gt------------lt~
i I-----
i t-------t
I-----~
I-----~
I-----~
i t-------t
6tJ I----- i
i t-------t
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NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
System Task Name Duration
378 511 Fuel Oil Fuel Oil 5048 hrs 379 FO pumps FO pumps 3367 hrs 380 Shut oil pumps down when unit OOS 1 hr
381 Isolate fuel oil system 1 hr
382 Clean filters and system 8 hrs
383 Drain FO system 24 hrs
384 Storage tanks Storage tanks 0 hrs 385 Run down storage level (burn sell if possible) 0 hrs
386 Isolate 1 hr
387 Unit Care - Fuel Oil complete 0 hrs
388 512 Ash system Ash system 7803 hrs 389 Hoppers Hoppers 6322 hrs 390 Run local manual dump 8 hrs
391 Open hopper doors 3 hrs
392 Precips Precips 5217 hrs 393 Isolate 4 hrs
394 Remove Precip e-valves 24 hrs
395 Gas clearance 1 hr
396 Full wash of internals - washing manifold 24 hrs
397 Store with air doors open for natural air circulation 0 hrs
398 Deasher Deasher 417 hrs 399 Isolation 2 hrs
400 Gas clearance 1 hr
401 Full wash of all internals store dry 2 hrs
402 Ash pitpumps Ash pitpumps 0 hrs 403 Flush and pump down pit - leave available 0 hrs
404 Unit Care - Ash System complete 0 hrs
405 6 Electrical Systems Electrical Systems 14 hrs 406 62 Instrumentation Instrumentation 14 hrs 407 Build scaffold for furnace camera removal 4 hrs
408 Remove furnace camera 8 hrs
409 Dismantle scaffold after furnace camera removal 2 hrs
410 Unit Care - Electrical Systems complete 0 hrs
411 Unit 1 Care Complete 0 hrs
412 NPS Station Care - Project No 101 hrs
413 5 TurbineBoiler Unit TurbineBoiler Unit 101 hrs 414 510 Coal System Coal System 101 hrs 415 Train unloading Train unloading 3 hrs 416 Isolate unloader 1 hr
417 Washvaccuum train unloader 2 hrs
418 Bins Bins 64 hrs 419 Wash out coal bins 64 hrs
420 Conveyors Conveyors 100 hrs 421 Isolate conveyors 4 hrs
422 Wash down conveyors 32 hrs
423 Coal Towers Coal Towers 32 hrs 424 Wash down coal towers 32 hrs
425 Station Care - Coal System complete 0 hrs
426 511 Fuel Oil Fuel Oil 585 hrs 427 FO pumps FO pumps 585 hrs 428 Isolate fuel oil unloading delivery pumps 2 hrs
429 Drain fuel oil pipework 24 hrs
430 FO Storage tanks FO Storage tanks 32 hrs 431 Drain fuel oil storage tanks and vaccuum out any residue 32 hrs
432 FO Storage - PPS FO Storage - PPS 10 hrs 433 Run stocks to minimum levels 0 hrs
Page 8 of 12
everyone every day every jab Zero Harm
0
t------t i
t------t i
f--------l i
i t------t
i t------t
i f--------l i
f--------l i
i f--------l i
i f--------l
i t------t
i f--------l i
t------t i
t------t i
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
7 71
5 51
53
54
System
FO Storage - service tank
Stn Aux Aux Blr
TurbineBoiler Unit Turbine Turbine Oil Systems
CEPs
Turbine valves
CW system Chambers
CW Pumps
CW Dosing
Feedwater system
Task Name
Clean out remaining oil
FO Storage - service tank
Run stocks to minimum levels
Clean out remaining oil
Station Care - Fuel Oil complete
Stn Aux Aux Blr
Isolation
Drain and dry store Aux Blr
DACP Disconnect discharge pipework
Remove collection vessel filter bags
Wash collection vessels
NPS Station Care Complete
NPS Closure - Project No TurbineBoiler Unit
Turbine Turbine Oil Systems
Isolation
Drain main oil tank and pipework
Drain seal oil defoaming tank and pipework
Drain seal oil drain regulator tanks
Drain Loop seal tanks
Isolate electrical supplies to pumps
CEPs Drain oil from CEP and motor
Turbine valves Isolate power supplies
Drain actuators and pipework
Drain control stations and acumulators
NPS Closure - Turbine complete
CW system Chambers
Stop log sealing faces to be cleaned divers required
Install stop logs
CW chamber drained
dewatering pump installed
Remove CW pump
Fit blanks
Remove Dewatering pp
Remove stop logs
CW Pumps Drain oil from pump bearings
Ferrous Chloride dosing
Drain and flush tank amp pipe work to condenser
Isolation
Chlorination Plant Flush acid pipe work with sea water
Isolation
Drain acid tank
Wash out acid tank
NPS Closure - CW System complete
Feedwater system
Duration
8 hrs
10 hrs
0 hrs
8 hrs
0 hrs
715 hrs 10 hrs 2 hrs
8 hrs
18 hrs 2 hrs
8 hrs
8 hrs
0 hrs
24038 hrs
24038 hrs 168 hrs 168 hrs
4 hrs
64 hrs
32 hrs
32 hrs
32 hrs
4 hrs
32 hrs 32 hrs
98 hrs 2 hrs
48 hrs
48 hrs
0 hrs
24038 hrs 218 hrs 32 hrs
32 hrs
16 hrs
2 hrs
80 hrs
32 hrs
8 hrs
16 hrs
8 hrs 8 hrs
17 hrs
16 hrs
1 hr
5 hrs 1 hr
2 hrs
1 hr
1 hr
0 hrs
35 hrs
Page 9 of 12
475
476
477
478
479
480
481
482
483
484
485
486
everyone every day every jab Zero Harm
0
t------t i
t------t i
t------t i
t-------t i
t------t i
t------t i
t-------t i
t------t i
t-------t i
t------t i
t-------t i
t-------t i
t------t i
i
t------t i
t------t i
i t-------t i
t------t i
t------t i
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
System Task Name Duration
487 Res Feed Water Tanks Res Feed Water Tanks 2 hrs
488 Drain RFW tanks 2 hrs
489 LP Feedheaters LP Feedheaters 8 hrs 490 Open drains and doors 8 hrs
491 GS condenser GS condenser 8 hrs 492 Open drains and doors 8 hrs
493 LP ejector LP ejector 8 hrs 494 Open drains and doors 8 hrs
495 Boiler feed Pumps Boiler feed Pumps 32 hrs 496 Remove oil from BFP and GTD 32 hrs
497 HP 6 amp 7 HP 6 amp 7 4 hrs 498 Open drains 4 hrs
499 Ammonia dosing pp Ammonia dosing pp 4 hrs
500 Drain oil from bearings 4 hrs
501 55 Boiler Boiler 8 hrs 502 Pressure parts Pressure parts 8 hrs 503 Open all drains and vents 8 hrs
504 Safety valves Safety valves 8 hrs 505 Relieve safety valve spring tensions 8 hrs
506 Blowdown vessels Blowdown vessels 8 hrs 507 Open all drains and vents 8 hrs
508 56 Draught Plant Draught Plant 16 hrs 509 Air Heaters Air Heaters 16 hrs 510 Drain oil from bearings and gearboxes 16 hrs
511 ID fans ID fans 16 hrs 512 Drain oil from bearings and oil tanks 16 hrs
513 GR Fan GR Fan 8 hrs 514 Drain oil from bearings and oil tanks 8 hrs
515 PA fan PA fan 8 hrs 516 Drain oil from bearings and oil tanks 8 hrs
517 SA SA 8 hrs 518 Drain oil from bearings and oil tanks 8 hrs
519 57 Valves Valves 40 hrs 520 Station safety vvs Station safety vvs 40 hrs 521 Relieve spring tensions 40 hrs
522 510 Coal System Coal System 125 hrs 523 Ploughs Ploughs 8 hrs 524 Drain gearbox oils 8 hrs
525 Trippers Trippers 8 hrs 526 Drain gearbox oils 8 hrs
527 Conveyors Conveyors 24 hrs 528 Drain oil from gearboxes 24 hrs
529 Coal feeders Coal feeders 36 hrs 530 Drain oil from gearboxes 36 hrs
531 Mills Mills 96 hrs 532 Drain oil from gearboxes 96 hrs
533 Drain oil from Rollers 48 hrs
534 512 Ash system Ash system 8 hrs 535 Deasher Deasher 8 hrs 536 Drain oil from hydraulic units 8 hrs
537 Crusher Crusher 4 hrs 538 Drain oil from crusher drive 4 hrs
539 Ash pitpumps Ash pitpumps 4 hrs 540 Isolate amp install submersible pp (discuss with contractor) 4 hrs
541 6 Electrical Systems Electrical Systems 24038 hrs
Page 10 of 12
everyone every day every jab Zero Harm
0
f------t i
f------t i
i f------t
i f------t i
i f------t
i f------t i
f------t i
i f------t
i f------t
f------t i
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
61
62
63
64
65
67
7 71
72
73
System
Control Systems FCS battery systems
Fire safety system
Instrumentation FCS stations
FCS inverter output
FCS inverter input
DC systems DC systems 220v
110v
24v
HV supply High Voltage supply
Switchboards 66
415V
Diesel Generators
Stn Aux Aux Blr
Compressed Air Compressors
Receivers
WTP RO Plant
Task Name
Control Systems FCS battery systems
Remove low voltage dc batteries
Fire safety system Decommission and remove DC battery inverter
Instrumentation FCS stations
Isolate AC supply to FCS stations
FCS inverter output
Isolate inverter supply to FCS stations
FCS inverter input Decommision inverter DC supplies
DC systems DC systems 220v
Decommission battery charger
Remove batteries
Wash down battery storage area
110v Decommission battery charger
Remove batteries
Wash down battery storage area
24v
Decommission battery charger
Remove batteries
Wash down battery storage area
HV supply High Voltage supply
Disconnect 275kV supply at Davenport - Electranet
Disconnect at the 18kV side of the transformer
Disconnect the 132kV line to the House transformer
Switchboards 66
Isolate 66 switchboards
discharge breaker spring
415V discharge breaker spring
Diesel Generators
Electrical disconnection
Mechanical Disconnection
Drain fuel tank
Electrical Systems complete
Stn Aux Aux Blr
Drain Auxillary blr fuel oil tank
Drain dosing chemicals
Compressed Air Compressors
Shut down and isolate compressors
Receivers Open up Air receivers
WTP RO Plant
Duration
6 hrs 6 hrs
6 hrs
2 hrs 2 hrs
3 hrs 2 hrs 2 hrs
3 hrs
3 hrs
1 hr 1 hr
24038 hrs 16 hrs 1 hr
16 hrs
2 hrs
12 hrs 1 hr
12 hrs
2 hrs
15 hrs 4 hrs
1 hr
8 hrs
2 hrs
48 hrs 48 hrs
0 hrs
24 hrs
24 hrs
24 hrs 24 hrs 2238 hrs
24 hrs
24 hrs 24 hrs
36 hrs 2 hrs
16 hrs
16 hrs
2 hrs
0 hrs
40 hrs 8 hrs 8 hrs
2 hrs
3 hrs 3 hrs 3 hrs
1 hr 1 hr
40 hrs 8 hrs
Isolate system
Isolate generators for removal
Page 11 of 12
583
584
585
586
587
588
589
590
591
592
593
594
595
everyone every day every jab Zero Harm
0 f------t
i
i f------t
i f------t
f------t i
f------t i
f------t i
f------t i
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID
635
636
Wg Manual Index No
74
Remove all portable fire extinguishers from site
8 81
83
84
System
WTP
Fire Protection Fire feedwater
Fire Deluge systems
Diesel Fire Pumps
Electric pmps
Fire detection DCPs
Halon systems
Vesda system
Fire extinguishers
Services Workshops Mills
Plant
ElectricalCoal line
Chem Lab
Admin
Document information and management
Pressure vessel de-registration
Security Appendix
Task Name
Decommission plant
WTP Drain all vessels
Dispose of resins and chemicals
Fire Protection Fire feedwater
Isolate from supply and drain system
Fire Deluge systems
Drain at pump discharge and each deluge station
Diesel Fire Pumps Drain fuel tank engine oil and coolant
Electric pumps Isolate motors
Fire detection DCPs
Isolate and remove lead acid batteries
Halon systems Decommission and Remove Halon cylinders
Vesda system remove batteries from Vesda units
Fire extinguishers
Services Workshops
Mills Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
Plant Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
ElectricalCoal line Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
Chem Lab Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
Admin ltNew Taskgt
Document information and management
Pressure vessel de-registration
Duration
8 hrs
40 hrs 40 hrs
40 hrs
8 hrs 4 hrs 4 hrs
8 hrs
8 hrs
8 hrs 8 hrs
2 hrs 2 hrs
8 hrs
8 hrs
8 hrs 8 hrs
4 hrs 4 hrs
8 hrs 8 hrs
40 hrs 40 hrs 8 hrs 2 hrs
8 hrs
8 hrs 2 hrs
8 hrs
8 hrs 2 hrs
8 hrs
40 hrs 40 hrs
24 hrs
8 hrs 8 hrs
8 hrs
8 hrs
8 hrs
8 hrs
85 9
Page 12 of 12
Appendix E
NPS Chemical plant that needs to be decommissioned
LPG ignition system decommissioning when Confirmation amp monitoring amount to contend with Removal dateComplete Target removal date
2 x 200kg cylinders owned by origin Disconnect cylinders and connect nitrogen bank of cylinders to purge pipework after units shutdown Cylinders removed - no monitoring required
1 and half cylinders
Arrange for shift to open aux boiler and each burner separately monitor pipework for explosive gases
Get origin to remove cylinders from site 21062016
Ammonia Dilution system
20 m3 tank and filling pipework
Use as much as possible in normal operation Remnants in tank while units still operating dilute with copious amounts of sea water and drain to contaminated drains Refill tank with demin water and drain to contaminated drains system amd the refill to above pump take off level Pump water through filling pipework to dosing tanks
in week before units shut down Empty tank and monitor for ammonia and pH
1 to 2 m3 25 to 5 NH3 21062016
2 x transfer pumps and transfer pipe to unit 1 unit 2 and boiler filling pump
When dilution tank decontaminated and filled with fresh water pump water through dosing pumps and lines for 20 minutes
in week before units shut down Empty tank and monitor for ammonia and pH
21062016
3 x 2000 litre dosing tanks and associated pumps and dosing lines
use as much during normal service and then drain with diltion water to the contaminated drains system Refill with fresh water and drain to contaminated drains Boiler dosing tank can be decommissioned in week before units come off
one at a time as units come off Empty tank and monitor for ammonia and pH
3 x 200litres 025 NH3 21062016
Hydrogen banks and pipework into station
8 banks of hydrogen BOC to remove after units off Cylinders removed - no monitoring required
21062016
stable flow controllers and hydrogen pipework purged when generator is purged with carbon dioxide after units off purged monitor for explosive gases 21062016
Water Treatment Plant including Reverse Osmosis plant 98 sulphuric acid
2 x bulk chemical storage tanks (max vol 36m3)
Use as much as possible during normal service Pump down from either drain or 1inch take off until level below man hole Take off man hole cover and pump out sulphuric acid until only remnants remain Open drain to bund and wash tank out to decontaminate and then release to effluent bulk tank with diluted sodium hydroxide remnants to neutralise the mixture before pumping to ash pit and ash pond
one before units come off and the other shortly afterwards
empty tank - monitor effluent for pH 3 to 4 m3 98 H2SO4 8062016
2 x measure vessels leave empty after last regeneration and then remove bottom flange and remove standpipe and flush with water
one before units come off and the other shortly afterwards
montor pH in drain 1 or 2 litres 98 H2SO4 8062016
pipework disconnect and flush with water one before units come off and the other shortly afterwards
Monitor pH in drain lt1 litre 98 H2SO4 8062016
2 x 20 sulphuric acid dilution tanks and pipework
run tank out during last regeneration and drain remnants to effluent system Disconnect pipework and flush with water
one before units come off and the other shortly afterwards
Monitor pH in drain 2 x 200litres 20 H2SO4 8062016
50 sodium hydroxide
2 x bulk chemical storage tanks (max vol 36m3)
Use as much as possible during normal service Pump down from either drain or 1inch take off until level below man hole Take off man hole cover and pump out sodium hydroxide until only remnants remain Open drain to bund and wash tank out to decontaminate and then release to effluent bulk tank with diluted sulphuric acid remnants to neutralise the mixture before pumping to ash pit and ash pond
one before units come off and the other shortly afterwards
empty tank - monitor effluent for pH 3 to 4 m3 50 NaOH 23062016
2 x measure vessels leave empty after last regeneration and then remove bottom flange and remove standpipe and flush with water
one before units come off and the other shortly afterwards
montor pH in drain 1 to 2 litres 50 NaOH 23062016
pipework disconnect and flush with water one before units come off and the other shortly afterwards
montor pH in drain lt 1 litre 50 NaOH 23062016
50 sulphuric acid IBC run out product in service or send back to ace chemicals also could put in acid dilution tank and use in regeneration of cation resin If only remnants drain to contaminated drains system
in week before units shut down montor pH in drain lt 500litres 50 H2SO4 8062016
42 Ferric chloride IBC run out product in service or send back to ace chemicals also if only remnants remain drai in week before units shut down montor pH in drain lt 5 Litres FeCL3 42 21062016
10 Sodium metabisulphate tank Bubble air through solution for a cou[ple of days until sodium metabisulphite forms sodium sulphate and then drain to contaminated drains system
in week before units shut down montor pH and ORP in drain lt200 litres NaSO4 or SMBS 20062016
antiscalant tank run out in normal service and drain residue to contaminated drains system in week before units shut down Monitor Phosphate 20 litres antescalant 20062016
2 x anion 2 x cation and 2 x mixed bed vessels ion exchange resin
pump out resin to storage truck to be removed from site - Cations 2 x 7000litres Anions 2 x 5400 litres Mixed beds 2 x 1250 litres of ion exchange resin
one train before units come off and the other shortly afterwards
27300 litre ion exchange resin 14062016
Condensate polishers
5 x ion exchange resin charges pump out resin to storage truck to be removed from site =gt Adelaide approx 6200 litres per charge
3 resin charges when first unit is in non-return to service period and other 2 when second unit is off
31000 litre ion exchange resin 14062016
Sulphuric acid measure vessel and Sodium hydroxide measure vessel
leave empty after last regeneration and then remove bottom flange and remove standpipe and flush with water
in week before units shut down montor pH in drain 1 or 2 litres 98 H2SO4 and 50 NaOH soln
8062016
pipework (concentrated chemical) disconnect and flush with water in week before units shut down montor pH in drain lt1 litre 98 H2SO4 and 50 NaOH soln
8062016
Sulphuric acid dilution vessel and pipework run tank out during last regeneration and drain remnants to effluent system Disconnect pipework and flush with water
in week before units shut down montor pH in drain 250litres 20 H2SO4 8062016
Ferrous Chloride
12 ferrous chloride tank pump out ferrous chloride for disposal and wash out remnants to contaminated drains system with copious dilution
in week before units shut down montor pH and iron in drain 5 m3 12 FeCL2 soln 21062016
dilution 1-2 solution tank Use as much as possible during normal operation and flush out remnants of tanks to contaminated drains system
in week before units shut down montor pH and iron in drain 15m3 1 - 2 soln 21062016
Carbon dioxide
36 G size cylinders Use carbon dioxide up in generator purge and purging hydrogen lines After Units off Could start one unit purge in last week of running
21062016
Pipework break pipe work at various locations to release carbondioxide After Units off Could start one unit purge in last week of running
21062016
Generators
2 x hydrogen in generator space Displace hydrogen with carbon dioxide at ealiest time possible and then purge with air After Units off Could start one unit purge in last week of running
orsat check 21062016
Chlorine plant 1000litres of 2 to 3 hydrochloric acid solution
Drain to contaminated drains system with copious waterseawater dilution in week before units shut down montor pH in drain 5000 litres lt1 HCl solution 21062016
Auxillary boiler dosing tank 60 litres BWT dosing solution Neutralise with acid or dilute with lots of water and into contaminated drains system in week before units shut down montor pH in drain 40 litres BWT 21062016
Workshop and laboratory chemicals amp hazardous substances Various chemicals solvents oils and Greases Arrange disposal by contractor After shut down 27062016
Bottled Gas
Various Cylinders on site Arrange transport to BOC After shut down Cylinders removed - no monitoring required
21062016
SF6 amp Freon in GCB amp transformers and Spare SF6 Freon cylinders SF6 and Freon in Generator circuit breaker and transformers and cyliders of SF6 and Freon in workshops and store compound
Arrange recovery and disposal by contractor After Shut down 21062016
Radio active substances (XRF etc etc) Pulsed XRF 2 x hand held XRF and Benchtop XRF in Laboratory
Oxford Instruments model X-Met 3000T Tube serial no 702033 (EPA no 21237) has been disabled Hand held pulsed and benchtop XRF to be sold
After Shut down 1102016
Petrol Tank underground storage NPS Store Get pumped out for Macmahons to remove
Timeframe After Shutdown
Target date 30062016
Status Complete
Diesel tanks Fire diesel tanks Cat Generator Tank
Get Pumped out Get Pumped out
Late June Late June
30062016 30062016
Complete Complete
Fuel Oil Aux Boiler Main fuel oil tank PPS fuel oil tank Flush fuel oil system including PPS to NPS pipeline
Get pumped out and cleaned Get pumped out and cleaned Clean out
Get pumped out and cleaned
After Shutdown After Shutdown After Shutdown
After Shutdown
31082016 31082016 31082016
31082016
Emptied - to be cleaned Emptied - to be cleaned Emptied - to be cleaned
Emptied - to be cleaned
Oils Plant - all but transformers and turbines Workshop and stores
Pump out - fans air heaters BFPs ID fans Gr Fans Mills Deashers and ploughs collect together on shut down
After Shutdown After shut down
31082017 31082017
Transformers degass- Remove Freon gas Coal line transformers site transfromers
Reclaim at shut down Reclaim when de-energised
After shut down June
31082017 31082017
Generator circuit breakers remove SF6 Generator circuit breakers SF^ in store
reclaim gas from circuit breakers Dispose of gas cylinders
after shut down after shut down
31082017 30062016 Complete
Batteries Various NiCad Lithium NiMetal hydride etc Lead acid in disposal area Battery room batteries
collect together on shut down collect together at shutdown McMahons
After shut down After shut down After shutdown
30062016 30062016 30062016
Complete Complete Complete
Mercury Globes and mamometers etc Collect together on shutdown After shutdown 30062016 Complete
Greases and permalubes Workshop and stores Collect together on shutdown After shutdown 31082017
Appendix E1
NPS Chemical plant that needs to be decommissioned
Item number decommissioning when amount to contend with
Ammonia Dilution system
1 NPS ammonia dilution 20 m3 tank Drain tank and flush out in week before units shut down 1 to 2 m3 25 to 5 NH3
2 3 x 2000 litre dosing tanks at NPS pump out remnants one at a time as units come off 3 x 200litres 25 NH3
Water Treatment Plant including Reverse Osmosis plant
98 sulphuric acid
3 2 x bulk chemical storage tanks (max vol 36m3)
at NPS Pump out tank and decontaminate Remove built up sludge
one before units come off and
the other shortly afterwards 3 to 4 m3 98 H2SO4
4 2 x 20 sulphuric acid dilution tanks at NPS pump out tank and decontaminate one before units come off and
the other shortly afterwards 2 x 200litres 20 H2SO4
50 sodium hydroxide
5 2 x bulk chemical storage tanks (max vol
36m3) at NPS Pump out tank and decontaminate Remove built up sludge
one before units come off and
the other shortly afterwards 3 to 4 m3 50 NaOH
6 50 sulphuric acid IBC at NPS Pump out tank and decontaminate Remove built up sludge in week before units shut down lt 500litres 50 H2SO4
7 10 Sodium metabisulphate tank RO plant NPS pump out tank and decontaminate in week before units shut down lt200 litres NaSO4 or SMBS
8 antiscalant tank RO plant NPS pump out tank and decontaminate in week before units shut down 20 litres antescalant
9 2 x anion 2 x cation and 2 x mixed bed vessels
ion exchange resin at NPS
pump out resin to storage truck to be removed from site - Cations 2 x
7000litres Anions 2 x 5400 litres Mixed beds 2 x 1250 litres of ion exchange
resin
one train before units come off
and the other shortly afterwards 27300 litre ion exchange resin
Condensate polishers
10 5 x ion exchange resin charges at NPS pump out resin to storage truck to be removed from site =gt Adelaide approx
6200 litres per charge
3 resin charges when first unit is
in non-return to service period
and other 2 when second unit is
off
31000 litre ion exchange resin
11 Sulphuric acid dilution vessel at NPS pump out tank and decontaminate in week before units shut down 250litres 20 H2SO4
Ferrous Chloride
12 NPS 12 ferrous chloride tank pump out tank and decontaminate in week before units shut down 5 m3 12 FeCL2 soln
13 NPS dilution 1-2 solution tank pump out tank and decontaminate in week before units shut down 15m3 1 - 2 soln
Auxillary boiler dosing tank
14 NPS AUX BLR - 60 litres BWT dosing solution pump out tank and decontaminate in week before units shut down 60 litres BWT
Workshop and laboratory chemicals amp hazardous substances
15 Various chemicals solvents oils and Greases
at NPS remove workshop chemicals oils etc After shut down manifest
16 Various chemicals paints amp glues at NPS Remove Site store oils and chemicals After shut down manifest
Petrol Tank underground storage
17 NPS Store Get pumped out for Macmahons to remove tank After Shutdown
Max 115 Kilolitres hopefully
done to lt1000 litres
Diesel tanks
18 NPS and PPS Fire diesel tanks Move to main diesel tank near tower C Late June 3700 litres max
19 NPS Cat Generator Tank Move to main diesel tank near tower C Late June 4700 litre max
Fuel Oil
20 NPS Aux Boiler tank Pump out and Clean After Shutdown 5000 litres max
21 NPS Main fuel oil tank Pump out and Clean After Shutdown 250000 litres max lt50000 litres
22 PPS fuel oil tank Pump out and Clean After Shutdown lt10000 litres
23 fuel oil Pipe from delivery point to NPS and
PPPS service tanks clean out line After Shutdown
Unkown
24 fuel oil Pipe from PPS service tank to PPS LP
and HP oilheater and return line Clean out line After Shutdown
Unkown
25 PPS fuel oil lp heater X 2 Clean out heater After Shutdown Unkown
26 PPS fuel oil hp heater X 2 Clean out heater After Shutdown Unkown
27 PPS fuel oil lines to burner and back to heaters clean out line After Shutdown Unkown
28 NPS fuel oil heaters x 2 Clean out heater After Shutdown Unkown
29
NPS fuel oil lines to transfer pumps service
pumps lines to burners and back to main oil
tank NPS unit 1 and 2
Clean out lines After Shutdown
Unkown
Oils
30 NPS Turbine oils from unit 1 and 2 Pump out and dispose After Shutdown 32860 x 2
31 NPS unit turbine oil tanks and oil conditioners clean out After Shutdown
32 NPS turbine oil transfer lines and storage tank clean out After Shutdown
33 NPS mills x 12 ground floor collect together on shut down After shut down 1800 x 12
34 NPS Primary and secondary air fans above
ground x 2 Pump out and dispose
After Shutdown 770 x 4
35 NPS Primary air and secondary air heaters lube
oil X 2 - above ground level Pump out and dispose
After Shutdown 425 X 4
36 NPS Primary air and secondary air heaters
gearbox oil X 2 - above ground level Pump out and dispose After Shutdown 80 x 4
37 NPS Boiler Feed pumps grbx tank amp cooler X 4 Pump out and dispose After Shutdown 2800 x 4
38 NPS Deasher x 2 hydraulic oil Pump out and dispose After Shutdown 60 x 2
39 NPS Coal line ploughs x 2 Pump out and dispose After Shutdown 450 X 2
40 NPS ID fans x 4 Pump out and dispose After Shutdown 770 x 4
41 NPS GR fans x 2 Pump out and dispose After Shutdown 500 x 2
42
NPS Conveyer gearboxfluid drives 1(x2) 2(x2)
3 7(x2) 9(2)11(x2) - above and below ground
level
Pump out and dispose
After Shutdown
130 to 372 mainly in 150litre
range
43 NPS compressors x 3 Pump out and dispose After Shutdown 100 x 3
44 NPS Cat generators x 2 Pump out and dispose After Shutdown 200 x 2
45 Workshop storages at NPS collect remove from site and dispose After Shutdown y
46 Stores Shed oils and grease at NPS remove from site and dispose After Shutdown lots
47 waste oil collection area at NPS remove from site and dispose After Shutdown 12000 + litres
Transformers oils
48 NPS transformer - 2 x stepup Fuji Remove oil late june 2x 53000litre
49 NPS transformer - 2 x unit Wilson Remove oil late june 2 x 13000 l
50 NPS transformer - 2 x station tyree Remove oil late june 26000
51 Fuel oil unloading Remove oil late june 600
52 Town water Remove oil late june 600
53 Spare step up at NPS Remove oil late june 50000
54 PPS PPS Met vickers step up x 4 Remove oil late june 4 x 69000
55 PPS Ferranti house Remove oil late june 36000
56 PPS Unit Remove oil late june 4 x 4000
57 PPS Aux Remove oil late june 4 x 700
58 PPS GP Remove oil late june 1400
59 PPS ASH Remove oil late june 1400
60 PPS coal line starter Remove oil late june 2100
61 Spare unit at PPS Remove oil late june 1300
Batteries
total 565900 litres
62 Various NiCad Lithium NiMetal hydride etc at N remove from site and dispose After shut down Unknown
63 Lead acid in disposal area at NPS remove from site and dispose After shut down Unknown
64 NPS Battery room batteries remove from battery room and put on pallet (outside) late june Unknown
65 NPS Battery room Batteries Remove from site late june Unknown
Mercury
66 Globes and mamometers etc at NPS remove from site and dispose After shutdown Unknown
Greases and permalubes
67 Workshop and stores at NPS remove from site and dispose After shutdown Unknown
Coolant
68 Cat diesels NPS Pump out and dispose late june 100 litre
69 PPS fire diesel pumps Pump out and dispose late june 100 litre
Appendix F
D I
I
McMAHON SERVICES a allestrin Mi=iMMi
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
JSEA Number AD 010
Project and Organisation Details
Project Site Port Augusta Power Station Project Manager Ross Fitzgerald Sign Phone 0439 034 900
Title CARTING MATERIAL FROM BORROW PIT CARTING ASH FROM
DISCHARGE LEVYrsquoS TO DEMO PLANT SITE Site Supervisor
Mick Oster Sign Phone
0400 923 758
Job Task Excavation of material from borrow pit or ash from discharge levyrsquo carting
material to demo plant site driving dump trucks on road way to demo site
Site Safety Advisor Louis Kokkinos Sign Phone 0409 222 087 1
Principal Contractor Flinders Power
Job Number 5201750 JSEASWMS Creation 10 Revision Number 1 Has a Project Risk Assessment Register been Developed for the Project
Implement the PRAR control measures and place into this JSEASWMS
Legislative Compliance Review Information referenced during the JSEA Planning ndash Record applicable document reference number and name below
Legislation Codes of Practice Standards Emergency Plan Procedures SWIrsquos Engineering Work Cover SDS Other
WHS Act 2012
WHS Regulations 2012
CoP Excavations Cop Mobile Plant
Project Emergency Plan
SWI 0400 Plant and equipment
SWI 0100 Manual handling
SWI 0327 Selection of Hand
Protection
Traffic mngmt amp Site movement of plant Environmental protection Act 1993 ndash EPA license 13006
High Risk Work Structural Collapse ChemicalFuelRefrigerant Lines Work in Tunnel Explosives
Fall from Heights gt 3m Demolition of Structures Energised Electrical Installations Mobile Plant Work Involving Diving
Disturbance of Asbestos Pressurised Gas Pipes Mains Contaminated Flammable Atmosphere Traffic Tilt-upPrecast Concrete
Excavation gt15m Telecommunication Towers Extremes of Artificial Temperature Confined Spaces Risk of Drowning
Qualifications Licenses Plant Equipment
LE Excavator ST Service Truck HS Dump Truck HR Truck Excavator Moxy truck Fuel Trailer and Service Truck Water cart
Permit Tick Required
Asbestos Daily Diary (F062)
Confined Space (F603)
Demolition (F285)
Excavation Penetration (F636)
Excavation Entry (F166)
Hot Work (F630)
Lifting Operation - Lift (F189)
Working at Heights (F676)
PPE Tick Required
Important
(1) Persons within 10m of noisy plantprocess must wear Hearing PPE
(2) Hand protection must be selected via SWI327 - manual tasks
(3) Double eye protection to be worn when grinding
IF PRINTED -Page 1 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin Mi=iMMi
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Potential Hazards This list may not identify all potential hazards present Visit the job site to ensure all hazards are identified and implement appropriate control measures in the JSEASWMS
Fire Ignition Sources
Will hot work be conducted Implement Fire prevention strategies
(Complete the Permit)
Refer to SWI344-Completing a Hot Work Permit Standard S023-Hot Work
Permit S002-Managing Risk of Risk in Fire Ban Seasons
Hazardous Substances Will work task involve contact with any Hazardous Substances
Refer to the SDS and consider specialised PPE precautions
Refer to SWI099-Accessing SDS SWI123-Handling Hazardous Subs
Environmental Impact- Vibration Noise Will vibration or noise emission extend beyond the project perimeter
Is vibration monitoring from demolition process especially when working near
heritage type buildings (Check the PRAR - F224)
Refer to SWI147-Environmental Management - Noise amp Vibration Control
Hazardous Manual Task
Will the worker be lifting moving objects or material
Workers to select controls measure based upon HIRAC
Correct lifting techniques Workers to stretch before and during task
Refer to SWI100-Hazardous Manual Tasks SWI102-Stretching Techniques
Services Will service isolation disconnection for plantequipmentinfrastructure
Any overheadunderground services within work area
Refer to SWI704-Service Isolation - Lock out Tag Out
Environmental Impact- Decontamination of Plant Equipment Will Plant Equipment and PPE require decontamination at the end of each
day and or when exposed equipmentplant is to leave the
asbestoscontaminated area
Refer to SWI147-Environmental Management - Noise amp Vibration Control
Excavations
Does the task require an excavation to be dug
Check for services prior to excavation (Complete the Permit)
Refer to Standard S053 - High Risk Construction Activity- Excavations
Emergency Preparedness Establish an emergency plan for the task
Refer to SWI082-Emergency Planning for Project Sites
Environmental Impact - Dust Will the task generate dust or is there a requirement for disposal of hazardous
waste
Refer to SWI148-Environmental Management - Dust Control
Working at Heights amp Falling Objects
Will the task require workers to work at height or around open
penetrations voids Are they trained to perform the task
Delineate areas where workers amp others may pass (Complete the Permit)
Refer to SWI 0085 - Prevention of Falls - Planning
Plant Machinery amp Equipment Will the plant work area be delineated away from other works
Is the operator ticketed licensed for this type of equipment plant
Refer to Standard S055 - HRCA - Safe Work Zone - Traffic Management SWI-
026-TicketLicencesCompetencies to Perform Work
Environmental Impact - Haz Substance Storage Spills Is there potential to release pollutants to drainrsquos marine waterways ground
atmosphere
Consider if any potential spill sources exist at the work area
Consider the need for bunds drip trays spill blankets absorption etc
Refer to SWI149-Environmental Management - Soil Erosion Drainage Management
Slip amp Trip Hazards
Will the task produce potential slip and or trip hazard (Material
Equipment)
Implement housekeeping strategies
Lifting Operations (Crane Lifts) Consider if work task involves crane lifts
Ensure a lift Permit has been conducted (Complete the Permit)
Refer to Lifting Operation - Lift Permit (F189)
Environmental Impact - Waste Disposal Will the task create prescribed waste requiring special disposal
Refer to SWI152-Environmental Management - Waste and Recycling
Task Security Nearby Works
Will barriers delineation be required to exclude personnel or vehicles
from the work area
Refer to Standard S051 - HRCA - Safe Work Zone - Site Security
Cuts and Abrasion Is there a risk of cuts abrasion
Consider task separation or adequacy of PPE
Refer to SWI327-Selection of Hand Protection
Environmental Impact - Cultural Heritage Could the task uncover indigenous or European artefacts
Could the task impact on heritage buildings structures
Refer to SWI154- Managing Cultural Heritage Protocol Uncovering Artefacts
Customer and Surrounding Property
Consider the potential risk to neighboursrsquo property
Consider potential damage to customer property nearby
Refer to Standard S051 - HRCA - Safe Work Zone - Site Security
Traffic Management Consider how construction traffic will access and egress the workplace
in a safe manner
Refer to Standard S055 - HRCA - Safe Work Zone - Traffic Management
Asbestos Consider if personnel may be exposed to asbestos during this task
If unsure check the Asbestos Register
Refer to SWI 0349- Planning and Asbestos Removal Task SWI 0233 Friable
Asbestos Personal Decontamination Process
Weather Conditions Working Outdoors
Does the weather pose a risk to a workerrsquos health Safety or the environment Consider the ambient conditions associated hazards Consider precautions to prevent exposure to
heatcold
Noise Will the work create higher noise levels Consider the need for hearing protection in the work area
If hearing PPE is deemed as required then all workers in a 10-metre radius (minimum) of the noise source must wear hearing PPE
IF PRINTED -Page 2 of 9 104 Exploration Dr Karratha UNCONTROLLED 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
-
-
-
-
the hazards
C V 0 Ugt ts
Level2 e ~
Ugt 0 Substi tute the hazard with someth ing co
Q) b safer E J e co Isolate the hazard from people Ugt
C -0 8 C Reduce the risks through engineering co
s contro ls a 1ij ~ Q)
V c s a _]
ai ai Level3 0 gt Q)
_J
Reduce exposure to the hazard
V using administrative actions
V Use personal protective equipment
LOWEST L E A S T
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Hazard Analysis and Control Worksheet
Step 1 Consequences (Severity)
1 Insignificant bull Cause a near miss needs to be reported
bull Limited impact to a local area but no long-term effects
2 Low bull Injury requiring First Aid treatment and or short term discomfort
bull Localised short to medium term impact to the environment
3 Moderate
bull Potential for injury resulting in medical attention
bull Localised medium to long term impact to the environment
bull Damage to plant property
4 Major bull Serious injury Long term disability
bull Widespread or off-site release medium to long term impact
bull Major financial loss damage to plant Loss of production capability
5 Extreme
bull Potential to be fatal Permanent disability
bull Release off-site with detrimental widespread irreparable environmental damage
bull Destruction of property or plant Huge financial loss
Step 4 Action Plan
Low Minimal risk monitor where work changes
Moderate Some action may be required
Supervisor to determine and monitor
High Activity Must be reviewed by Project Manager and have additional risk controls built into the SWMS and work procedure
Extreme
Activity to be re-planned andor re-designed
Must reduce risk immediately ndash highest priority Work is not commencing until appropriate controls are in place
Hierarchical of Controls
Control measures must be ranked from the highest level of protection and reliability to the lowest This ranking is known as the hierarchy of control The higher order controls must always be considered first
If residual risks are ranked as lsquoHIGHrsquo the team shall determine the adequacy of controls and consider further risk reduction strategies (Refer to step 4 - Action Plan)
Step 2 Potential (Likelihood)
A Certain to Occur
Expected to occur in most circumstances
B Likely Will probably occur in most circumstances
C Possible Might occur at some time
D Unlikely Could occur at some time
E Rare May occur only in exceptional circumstances
Step 3 Risk Matrix Consequence
Insignificant Low Moderate Major Extreme Level 1 Level 2 Level 3 Level 4 Level 5
Lik
eli
ho
od
Certain to Occur (A) H H E E E
Likely (B) M H H E E
Moderate (C) L M H E E
Unlikely (D) L L M H E
Rare (E) L L M M H
IF PRINTED -Page 3 of 9 104 Exploration Dr Karratha UNCONTROLLED 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
bull
-iW=iMdbullMi McMAHON q a allestrin SERVICES 1ntract ft_ -_ __
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Job Safety Environmental Analysis (JSEA) Safe Work Method Statement
Step Process Steps Potential Hazards Inherent Hazard Control Measures Residual No List the steps needed to do the Against each step list potential hazards that Risk For each hazard identify control measures to eliminate or minimise the risk of Risk Action by
job in the sequence to be done could cause injury when the jobrsquos done Rating injury (hierarchy of controls) Rating (Print name of person)
1 Pre-start talks with Michael Atkinson Ben Knoop Louis Kokkinos and Mick Oster to determine dumping area within live demo plant
Miss communication between civil and demo team causing work crew overlap hazards such as collision with demo plant personnel or LV
H Consultation in site office dumping area in live demo plant to correctly locate dumping zone Visually inspect demo plant and personnel near dumping zone Identify the need to use 2-way communications on channel 27
L Michael Atkinson
Louis Kokkinos
Mick Oster
Ben Knoop
2 Establish one way hauling routes for dump truck drivers ndash Pre-drive route with Mick Oster Louis Kokkinos and Ben Knoop
Interaction or collision with other plant people or vehicles in the area or on route Demo plant LV or personnel unclear or unaware of one-way route
H Pre-drive route and communicate traffic management plan to dump truck drivers Ensure dump truck drivers understand one-way route by providing them with guided tour and escort Provide map of route to drivers Drivers must adhere to traffic management plan Drivers must not drive on other road ways within live demo plant Dump truck drivers must use 2-way radio to announce arrival and departure at live demo plant on haul roads and dumping area
L All personnel signed onto this document
Dump truck drivers speeding on haul E All dump truck drivers must not exceed MAX 20 Kmh in demo area H All personnel signed roads or making contact with overhead at all times Dump truck drivers must assume that over lapping demo onto this document hazards such as light poles or electrical work crew will not expect them to be in their work zone and should lines prepare to stop or give way at any time Dump truck drivers must
not raise tubbed or unload in any area other than designated areas as per attached map
Demo crew not aware of us in their work H Demo supervisor must brief work crew of civil and demo crew L Demo crew and zone or one-way haul roadsroute - interactions and provide work crew and plant operators with map of team Interaction of heavy light vehicle resulting civildump truck hauling roads and one-way areas Demo work crew in accident causing injury plant damage plant LVs and personnel must avoid civil haul road areas if
practicable to do so
3 Civil work crew within demo site
High risk works associated with movements of mobile plant contact with plant and personnel crush injuryrsquos or the potential for death
E Dump truck operators must not exit cabins in active demolition areas unless itrsquos for an emergency or vehicle has broken down Drivers must wear hard hats and safety glasses if in the active demolition site 2-way radio to be used to communicate emergency situations or any requirements to exit truck cabins Existing muster points apply for civil team
M All personnel signed onto this document
4 Suppressing dust Dust arising from borrow pit activities hauling on roads or carting or excavating levy ash creating health environmental damage or concerns
H Implementation of 3 level Trigger Action Response Plan must be utilised when monitoring dust levels during ongoing works Use of water cart on haul roads and any other areas where dust suppression is required
L All personnel signed onto this document including water cart operator
IF PRINTED -Page 4 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Step No
Process Steps List the steps needed to do the job in the sequence to be done
Potential Hazards Against each step list potential hazards that
could cause injury when the jobrsquos done
Inherent Risk
Rating
Hazard Control Measures For each hazard identify control measures to eliminate or minimise the risk of
injury (hierarchy of controls)
Residual Risk
Rating Action by
(Print name of person)
Ash material drying out causing dust to become airborne and leave the site boundary causing environmental harm
H Constant monitoring of area to ensure material is wet down and suppressed Capping material to be placed on ash to prevent becoming airborne and suppressed with water as necessary to prevent dust becoming fugitive Direct dumping and immediate spreading to avoid stockpiling of ash causing unnecessary dust
L All personnel signed onto this document including water cart operator
5 Dumping ash material in PPS A station basement area Excavating ash from levee
Dumping on uneven surface causing risk of tray tipping over
H No dumping on uneven surface unless the use of spotter and the cab is not articulated Always tip with the cab and tray in line to avoid tipping tray Assess ground conditions and drive to conditions at all times
L All personnel signed onto this document
Slumping of ramp levee and stockpile causing material to give way
H Operators to check condition of ramp levee and stockpile to assess area for cracking slumping and soft spots that could cause machine to become unstable
L All personnel signed onto this document
Tipping material without a tip head to back onto
H Operators are to follow instructions from the dozer excavator operator and are to tip short with a spotter so the dozer can push the material Dump truck operators must not tip short without the use of the spotter to guide into position via verbal or hand signals
L All personnel signed onto this document
Tipping over basement edge without tip head causing potential drop of machine and injury to personnel
H Operators to use established ramp at south end of basement as tip location to eliminate tipping over live edge Operators are to tip short with a spotter so the dozer can push the material into basement
L All personnel signed onto this document
IF PRINTED -Page 5 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
I I I I I I
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Step No
Process Steps List the steps needed to do the job in the sequence to be done
Potential Hazards Against each step list potential hazards that
could cause injury when the jobrsquos done
Inherent Risk
Rating
Hazard Control Measures For each hazard identify control measures to eliminate or minimise the risk of
injury (hierarchy of controls)
Residual Risk
Rating Action by
(Print name of person)
IF PRINTED -Page 6 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
D
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
How to Complete the JSEASWMS Process
1 When developing a JSEASWMS refer to the applicable Legislation Code of Practice and Company Standards 4 Each of the hazards identified must be risk rated hazard control measures defined precautions and
and Safe Work Instructions (Documents referenced in this JSEASWMS must be recorded on page one) equipment must be identified to reduce the risk
5 Responsibilities are allocated to each control measure defined in the JSEASWMS 2 The job is to be broken up into individual process steps 6 All workers involved in the task must review the document and it must be accepted by workers signing 3 For each step the potential hazards are identified
this JSEASWMS form
NOTE This is a legally binding document to which all workers must adhere
Approval
I the undersigned Supervisor confirm that I have checked all qualifications provided and verify that they are applicable and current I have also ensured that all inductions have taken place and that all tools and equipment are properly maintained and safe to use I have issued all relevant permits and have ensured to the best of my ability that the work area is safe and that the work will not damage any property or injure any persons
Supervisor Name Supervisor Signature Date 9th August 2017
Development amp Review
Initiators of JSEArsquos are responsible for consulting with supervisors engineers or other persons directly in charge of the work and any other personnel involved in the execution of the task (as appropriate) for input into the JSEASWMS during the development and review stages
Other persons may be consulted for technical advice or review of the JSEA to ensure that the proposed measures are effective and workable (Record names below)
The JSEASWMS shall be reviewed
(1) At the commencement of a new task (2) If a task changes (3) If a hazard been identified (4) At the JSEASWMS three-month anniversary
Developed Consulted By Reviewed By
Date 7th August 2017 Date 8th August 2017 Reason for review Change of TMP map and inclusion of TARP
Name
Name
Louis Kokkinos
Ben Knoop
Position
Position
Site Safety Advisor
Site Civil Engineer
Name
Name
Louis Kokkinos Position
Position
Site Safety Advisor Added step 4
Changed TMP map on last page
Name Mick Oster Position Senior Site Supervisor Name Position
Name Jamie Kirk Position Site Safety Advisor DEMO Name Position
IF PRINTED -Page 7 of 9 104 Exploration Dr Karratha UNCONTROLLED 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
JSEASWMS Sign off and Acceptance of Proposed Work Method and Associated Responsibilities
bull I the undersigned confirm that I have been consulted regarding the above JSEASWMS and that its content is clearly understood
bull I also confirm that my required qualification(s) etc to undertake this activity isare current and that I am competent to complete the work safely and without risk to my own or the health and safety of others
bull I clearly understand that the control(s) in this JSEASWMS must be applied as documented otherwise work is to cease immediately and I will ensure that the work area is made safe as far as is reasonably practicable
No Surname First Name Classification Employed by Signature Date
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20 bull
bull ASH D AM
bull ENTRANC E R OAD TO AUGUSTA POWER STATION
IF PRINTED -Page 8 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
bull
bull BORROW PIT
bull M
M
dg h
fff
fff
IF PRINTED -Page 9 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
Appendix G
Power
Augusta Power Stations
Dust Management Plan
Demolition and Site Rehabilitation
Flinders Power May 2018
Title Names Signatures Date
Approval Facility Manager APS
Approval Program Manager ndash Flinders Sites
Document History
Rev Date Amended by Description of Changes
Draft Initial Draft Version
Rev 1 24082016 Updated and changed to cover Make ndashSafe Period
Rev 2 09092016 Updated and changed to cover Demolition Period
Rev 3 05102016 EPA recommendations and corrections incorporated
Rev 4 05102016 Ash Storage Area dust management options modified
Rev 5 05112016 Final version incorporating EPA feedback
Rev 6 01022017 Revised following dust event of 1st and 2nd January 2017
Rev 7 03032017 Revised to address EPA feedback of 20th February 2017
Rev 8 09082017 Revised to address excavation transport and use of ash for backfill
Rev 9 08122017 Revised to incorporate changes as per EPA letter of 6 December 2017
Rev 10 03012018 Revised to address proactive watering of the former coal stockpile
Rev 11 25052018 Revised to address the capping of the former coal stockpile area
Rev 12 15618 Revised to add seeding of the former coal stockpile area
Printed copies are uncontrolled Please ensure you are referring to the most current version 1
AindersPower
Contents 1 Introduction amp Purpose 3
2 Background 4
3 Setting 5
Stockpile 5
Ash Storage Area 5
Coal Conveyor System 6
Coal Storage Bins 6
Roadways 7
Demolition Activities 7
Utilities Available During Demolition 8
5 Environmental Conditions 14
EPA Notification of Process Changes 14
Licence Conditions 14
Ambient Dust Monitoring ndash TSP amp PM10 17
Speciation 20
6 Dust Management Plan (DMP) 21
Plan Stakeholders - Roles and Responsibilities 21
Implementation and Control Actions 23
Table 1 Aspect and Control Action 1 Coal Stockpile Operations 24
Table 2 Aspects and Control Action 2 Ash Storage Area Management 26
Table 3 Aspects and Control Action 3 Coal Conveyor System and General Site 28
Table 4 Aspects and Control Action 4 Site Roads (General Conditions) 29
Table 5 Aspects and Control Action 5 Demolition Activities 30
7 Ash Storage Area ndash Dust Management 32
Whole of ASA Dust Suppression Treatment 32
Trigger Action Response Plan ndash Ash Storage Area 32
8 Former Coal Stockpile Areandash Dust Management 37
Trigger Action Response Plan ndashStockpile Revegetation 37
9 Dust Monitoring and Evaluation 39
10 Community and Stakeholder Engagement 40
101 Complaint Management 41
References 42
Appendices 43
Printed copies are uncontrolled Please ensure you are referring to the most current version 2
AindersPower
1 Introduction amp Purpose Flinders Power operates the Flinders assets which comprise the Northern and Playford Power Stations in Port Augusta (known collectively as the lsquoAugusta Power Stationsrsquo (APS)) as well as the Leigh Creek Coal Mine Flinders Power also formerly maintained a dedicated rail line between Leigh Creek and Port Augusta
Flinders Power is strongly committed to sound environmental management as demonstrated within the board-endorsed Environment amp Community Policy The Policy states a commitment to partnering with the communities in which Flinders Power operates and a focus on continual improvement of environmental performance
The nature of the operation if poorly managed has the potential to create fugitive dust emissions which may adversely impact on the amenity of the local community Therefore the objectives of dust control are to
1 Minimise and control the impact of Flinders Power closure activities on air quality and emission of dust from site operations
2 To ensure compliance with EPA Licence requirements
3 Maintain environmental amenity and a strong relationship with the local community and regulatory authorities
To achieve these objectives a Dust Management Plan (DMP) has been formed The objectives of the DMP are to
bull Nominate potential sources of dust emissions
bull Describe methods and responsibilities for dust management controls to minimise the potential for impacts to the environment
bull Clearly define the responsibilities and actions required to respond to environmental incidents
bull Outline the methods to communicate and engage with the local community in relation to dust management and
bull Outline the monitoring and reporting arrangements to ensure ongoing compliance with the DMP
Scope This plan applies to activities covered under
bull EPA Licence 13006 (Northern amp Playford Power Stations)
This document is also part of the site Environmental Closure and Post Closure Plan where specific activities and responsibilities for performing dust management measures are assigned to the appropriate parties During the site demolition process Flinders Power has specific responsibility for areas not covered by the plant demolition project These areas the Ash Storage Area and the Coal Stockpile Pad are subject to separate rehabilitation and revegetation projects covered in the Environmental Closure and Post Closure Plan
Dust management activities involved with the decommissioning and demolition of the plant and structures on site are covered in the demolition plans developed under the Project Alliance Agreement
Printed copies are uncontrolled Please ensure you are referring to the most current version 3
AindersPower
2 Background
The Playford Power station (PPS) ceased operation in April 2012 The Northern Power Station (NPS) ceased operation on the 9th May 2016
NPS and PPS utilised a supply of coal delivered daily by train from the Leigh Creek Coalfields After combustion in the boilers ash was collected from the bottom of the boiler mixed into a seawater slurry and transferred to the Ash Storage Area by pipeline Fly ash from the exhaust gas was captured by electrostatic precipitators at NPS bag house filters at PPS and then sold to secondary users with the excess transferred to the Ash Storage Area
The Ash Storage Area was continually filled with deposited ash and sea water slurry from the boilers The nature of this mixture allowed the surface to form a salt crust when it dried out - due to the ever-changing location of the deposition field creating high areas of ash During heavy rain this surface crust was occasionally damaged allowing winds to disturb the ash and potentially blow it off site
There was also a flooding regime for the Ash Storage Area whereby internal levees were built up filled with an ashwater mixture and then quickly released to allow for a large portion of the surface of the Ash Storage Area to be flooded so that a salt crust could re-form on top This management strategy changed in October 2016 due to the erosive effects of utilising a pure seawater flooding technique (as opposed to an ash and seawater slurry) and the increased risks associated with dust generation In November 2016 the 212Ha Ash Storage was sealed utilising a dust suppressant applied by air and land
The coal stockpile at Augusta Power Stations was designed as an emergency supply should mine site or railway operations be impacted Historically the coal stockpile has been used on only intermittent occasions However during the last few years of operation due to increased variability in load profile in response to increased volatility in the SA energy market the stockpile was utilised as a dynamic stockpile The movement of coal on the stockpile became a frequent activity to meet strategic stockpiling or generation output needs as required The increased use of the stockpile increased the risk of fugitive dust emissions
To reduce these impacts during operation there were established Operating Instructions relating to the methods of stockpiling and reclaiming coal from the stockpile the use of water cannons for wetting down the stockpile the use of a water truck for applying dust suppressant to the surface of the stockpile water and a description of weather conditions for operations on the stockpile
Whilst these actions were effective in reducing dust emissions from the stockpile and Ash Storage Area a change in strategy continued monitoring vigilance and innovation is required to maintain control over dust emissions during the demolition and site rehabilitation phase
Other identified sources of minor fugitive dust during this phase include roadways and during demolition of coal and ash handling plant
Printed copies are uncontrolled Please ensure you are referring to the most current version 4
AindersPower
3 Setting
The township of Port Augusta is located approximately 300km north of Adelaide on the northern tip of Spencer Gulf and has a Dry Arid Low Latitudes climate
Figure 2 demonstrates the seasonal wind patterns for the region including wind direction and wind speed The charts indicate that strong regular southerlies are dominant during the summer season Port Augusta township especially the suburb of Willsden is potentially affected by fugitive coal dust and ash for most of the year except during winter when the dominant wind direction changes from southerlies to northerlies
Stockpile
The distance between the coal stockpile and the closest residents in Port Augusta to the north is approximately 35km (refer to Figure 1 below)
Coal formerly arrived from the Leigh Creek mine in open rail wagons and was bottom dumped via the rail car dumper on the rail line near the coal stockpile It was then conveyed to either the main coal storage bins for immediate use or to the stockpile for storage
Maintaining the moisture level of the coal to a point where surface dust mobilisation is decreased from the stockpile was achieved by the use of water cannons on the stockpile
The coal stockpile has been decommissioned and as of September 2016 the pad was being rehabilitated and revegetated A sprinkler system has been established over the surface area to promote vegetation establishment and control dust
Ash Storage Area
Waste ash from the boilers and the electrostatic precipitators was formerly mixed with seawater and piped to the Ash Storage Area
Deposited ash formed a salt crust due to the evaporation of water from the mix which stopped the ash from being mobilised and entrained by wind into the airshed
The levees on the edges of the Ash Storage Area were periodically raised to allow for a greater ash holding capacity
During the operational period ash could enter the airshed during windy periods when the surface crust was damaged by heavy rain and after heavy machinery working on the ash dam has broken up the surface A map of the Ash Storage Area in shown in Figure 3 with flood coffer dams numbered and the direction of floodwater flow during surface flooding events indicated
Following NPS closure a number of measures were taken to control dust lift-off from the Ash Storage Area including the installation of new pipework to ensure continued seawater supply the construction of new coffer dams and the use of a temporary pump and pipework from Playford Periodic filling of the coffer dams and breaching enabled seawater to flow out and re-establish a crust However this continued operation was progressively causing erosion to the surface of the dam and the banks of the coffer dams and certain areas such as the central discharge point were unable to be reached by flooding In August 2016 a 15Ha area adjacent the original slurry discharge point was sealed with dust suppressant applied by cropduster This treatment was successful in containing dust from this area Continued flooding to the east and west of this location caused
Printed copies are uncontrolled Please ensure you are referring to the most current version 5
AindersPower
further damage and in October 2016 it was decided to change strategy from seawater flooding to sealing the entire dam surface with dust suppressant
These measures were intended to achieve short-term dust control particularly during summer 201617 while the long-term rehabilitation plans were being implemented These actions are referenced in Implementation and Control Action 2
In late December 2016 a major storm event impacted the dust suppressant seal causing areas of ash to be re-exposed On the 1st and 2nd January 2017 a dust event occurred whereby windblown dust was generated from the surface of the dam
Reapplication of the dust suppressant was conducted throughout January 2017 with a seal re-established by 25th January 2017 Commencement of earthworks also occurred during this period with the opening of an adjacent borrow pit and the commencement of construction of topsoil lsquofingersrsquo across the surface of the dam
At the time of updating the Dust Management Plan approximately 180ha of the Ash Storage Area had been covered with soil with the completion of five east-west access fingers Seeding had occurred over 140ha of the site
Coal Conveyor System
The coal conveyor system begins at the train unloading facility at NPS Coal was directed either to the coal storage bins or the coal stockpile by the conveyor system Coal from the storage bins was conveyed to PPS or NPS as required The coal conveyors are enclosed and the transfer points are inside a number of enclosed towers to reduce dust emissions
Fugitive coal dust was formerly washed down daily from the inside of the conveyor enclosures and the transfer towers The effluent was captured in sumps underneath the towers where the coal dust sediment was collected and returned to the stockpile area
Following closure clean-out of the conveyor lines and transfer towers occurred with all accessible coal washed to the ground where it could be contained and disposed These control actions are described in the APS Environmental Closure and Post-Closure Plan
Short term coal dust management measures are being applied during the demolition and rehabilitation phase This is referenced in Implementation and Control Action 3 amp 5
Coal Storage Bins
There are three Coal Storage Bins at NPS with a capacity of 18000 tonnes located to the west of the stockpile These are enclosed with a tripper on top conveyors and ploughs on the bottom conveyors Both of these are enclosed to reduce dust emissions
Coal bins at Playford were decommissioned and emptied in 2012
Following closure clean-out of the NPS bins occurred with all accessible coal washed to the ground where it could be contained and disposed These control actions are described in the APS Environmental Closure and Post-Closure Plan
Short term coal dust management measures are being applied during demolition of the bins This is referenced in Implementation and Control Actions 3 amp 5
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AindersPower
Roadways
There are a number of roadways sealed and unsealed around the site where dust settles and aggregates Road vehicle speeds are kept to a 20 kmh limit on most roads with two roads on site having a 40kmh limit for both safety and environmental considerations
The Ash Storage Area is surrounded by a levee system allowing vehicle access on top Windblown ash can settle on the roadways and this is periodically sprayed with dust suppression chemical and wet down with a water truck to reduce dust lift off
Dust control measures used pre-closure are continuing during the closure process This is referenced in Implementation and Control Action 4
Demolition Activities
Flinders Power (FP) and McMahon Services Australia formed an Project Alliance Agreement in May 2016 to facilitate the successful delivery of the site demolition program
The Alliance is a unified team to jointly manage the planning asset salvage and decommissioning works of the Augusta Power Stations The successful delivery of this project relies on the combined efforts of both FP and McMahon Services and the pooling of knowledge experience and expertise under the Alliance is the best contractual means to deliver the complex closure program The Alliance will see the partnership of both the Owner Party (FP) and Non-Owner Party (McMahon Services) to create a single team working unanimously collaboratively and cooperatively and acting in good faith to make best-for-project decisions
FP have invaluable knowledge and expertise about the Augusta Power Stations This knowledge is integral to ensure the safety of all personnel and management of environmental risks McMahon Services has over 25 years of decommissioning experience conducting high risk demolition and hazardous materials removal works at sites across Australia McMahon Services are a licenced entity by the SA EPA and are accredited to ISO 14001
Each module of works within the delivery phase is defined by a unique scope of work with Flinders reserving the right to let independent work scopes
Potential dust generating activates identified in the Project Risk Assessment Register include
bull Stack felling
bull Bin felling
bull General demolition activities
bull General civil works and
bull General site traffic
Dust management measures are being incorporated into the demolition control plans as referenced in the APS Environmental Closure and Post Closure Plan and Alliance Demolition Plans
Printed copies are uncontrolled Please ensure you are referring to the most current version 7
AindersPower
Utilities Available During Demolition
The majority of electricity used by major plant at the station was formerly provided by onsite generation Following closure there remain a number of small electricity supplies to the site mainly into offices and workshops though the main infrastructure utilised for dust control is provided by large standalone portable generators A number of water pumps are used around the Ash Storage Area for seepage water and a portable diesel water pump can be deployed as required
Seawater has been previously pumped from the cooling water inlet screens of NPS to the Ash Storage Area via an agreement with a third party to access power supplies Additional pipework and outlets were installed on the southern side of the Ash Storage Area for targeted seawater flooding Additional seawater was also obtained from the Playford Station seawater inlet using a portable diesel water pump for flooding the south-western corner of the Ash Storage Area
Mains water at high pressure off the SA Water mains pipeline is also available on site and is utilised for stockpile revegetation
Printed copies are uncontrolled Please ensure you are referring to the most current version 8
I
bull ~ - __ i ----
middot1 ------ --bull- __ _
~ --I
i 1 i
~--~ V i ~ I
yen 1
I i I l
7 - -+ i i
middot1
i
I l i jL-________________ _ 0 )OOlaquor0ffi o~middot-=------ Naa-est RB51denDaJ Receplen
FIGURE 1 0 us1 Monilltribulli Loootion
AindersPower
Figure 1 Location of the Port Augusta and Stirling North Communities in relation to the APS Site and Coal Stockpile (after Aurecon 2010)
Printed copies are uncontrolled Please ensure you are referring to the most current version 9
---
WW SPEED (mis)
bull gtbullIII
- 8 8 11 1 5 7 - U
D 3Cbull 67
D 21 - 3C
D o5bull 21
AindersPower
Wind shadow directions Port Augusta Lgt Stirling North y7
Figure 2 Seasonal Wind Profile
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~IRU LAKl
oms
RL
(
AindersPower
sJ RAHPn
-~
1 RAMP13
Figure 3 Ash Storage Area map showing numbered flood coffer dams and direction of floodwater flow during surface flooding events
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Fp RindtrsPower
4 Supporting Documentation
The following document map outlines the role of the Dust Management Plan in meeting compliance obligations
Governing Legislation
EPA Authorisations Plans Appendices amp Supporting Documents
Environmental Protection Act 1993
EPA Licence 13006
Condition 11 Dust Prevention
Condition 22 Complaints Register
Condition 23 Develop and Implement Closure and Post-Closure Plan
APS Dust Management Plan (this document)
FPP Incident Management System
Environmental Closure and Post Closure Plan ndash Augusta Power Stations (Rev10 25 May 2018)
Appendix A Ash Dam Interim Sealing ndash Proposal 7th November 2016
Appendix B Ash Dam Interim Sealing ndash Risk Assessment 2nd
January 2017
Appendix C Complaint Handling Procedure
Appendix D Fugitive Dust Trigger Action Response Plan (Rev6 3rd
January 2018)
Appendix E Ash Storage Area ndash Extreme Weather Monitoring amp Response Plan (3 March 2017)
App A ndash Detailed Risk Assessments
App B ndash NPS Make Safe Manual
App C ndash PPS Closure Manual
App D ndash Closure amp Care Project Plan
App E ndash Chemical amp Oil Management Plan AppE1 ndash Chemical Manifest amp Removal Scope
App F ndash Demolition Alliance Supporting Plans
App G - APS Dust Management Plan (this document)
Printed copies are uncontrolled Please ensure you are referring to the most current version 12
Fp RindtrsPower
App H ndash Project Risk Assessment Register
Condition 26 Generic Contingency Plan Augusta Power
Station Emergency Response Plan
Condition 27 Pollution Control Refer Ellipse Equipment Register Maintenance
Management System
Environmental Compliance Agreement (2000)
Section 1 Definitions Flinders Power and Interpretations APS Ash Storage
Area End of Life Plan Draft Cost Estimate (14th
February 2000)
Printed copies are uncontrolled Please ensure you are referring to the most current version 13
Fp RindtrsPower
5 Environmental Conditions
The Augusta Power Stations operate according to the Environment Protection Act 1993 (SA)
The EP Act 1993 states the principle of a ldquogeneral environmental dutyrdquo
Part 4mdashGeneral environmental duty 25mdashGeneral environmental duty (1) A person must not undertake an activity that pollutes or might pollute the environment unless the person takes all reasonable and practicable measures to prevent or minimise any resulting environmental harm
The operation of the coal handling and storage system is an authorised activity under an Environmental Authorisation (Licence) under Part 6 of the EP Act provided by the EPA
EPA Notification of Process Changes
According to the requirements of the Environment Protection Act 1993 and Licence Condition 42 the EPA must be notified when there is a proposed change to operating conditions that
bull May increase emissions or alter the nature of pollutants or waste or
bull May increase the risk of environmental harm or
bull Would relocate the point of discharge of pollution or waste
Further in accordance with section 83 of the Act the EPA must be notified when serious or material environmental harm is caused or threatened
FP commits to ensuring compliance with these obligations
Licence Conditions
The Northern and Playford EPA licence (13006) states specifically the activities for which APS undertakes
Licensed Activities
The Licensee(s)
-Flinders Power Holdings GmbH Flinders Labuan (No 1) Ltd Flinders Labuan (No 2) Ltd is (are) authorised to undertake the following activities of environmental significance under Schedule 1 Part A of the Environment Protection Act 1993 (the Act) subject to the conditions of licence set out in the attached pages
1(5)(a) Petroleum storage 2(1) Abrasive blasting 7(3)(C) Crushing grinding or milling works (rock ores or minerals) 7(5) Coal Handling amp storage 8(2)(a) Fuel burning coal or wood
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Fp RindtrsPower
8(7) Discharges to marine or inland waters (heat or antibiotic or chemical water treatments)
8(6a)(a) Desalination plant that discharges wastewater to the marine environment
Licence 13006 (issued 01 January 2015 and as amended 30 August 2017) contains the following condition relating to dust on site
S-9 Dust Prevention
The licensee must
bull Take all reasonable and practicable measures to prevent dust leaving the Premises bull Develop a Dust Management Plan to the satisfaction of the EPA and bull Implement the Dust Management Plan approved in writing by the EPA (or any revised
plan approved in writing by the EPA)
Accordingly Augusta Power Stations operates the former coal stockpile coal handling plant and the Ash Storage Area in such a manner to reduce its effects on the environment including the roads to and from the stockpile and the levees on the ash storage area
The following licence conditions relate to ambient air monitoring
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1 AMBIENT A IR MONITORING (U - 5741
Tlhe Licensee must
31 1 install and operate a continuous meteorological monitoring station al a location within lhe Premises appmved in writing by the EPA
3 1 2 oontinuousily monitor ambient PM1Cl concentrations using an Ecotech Eshysampler Particulate Monitor (or other comparable equipment) at llocatio111s within themiddot Premises approved in writing by the EPA
3 1 3 oontinuousily monitor ambient PM1Cl concentrations using an Ecotech Met One E-Bam Particulate Monitor (or other comparable equipment) at such locations as may be d esignated in writing by the EPA including locations at Lea Memoria l Oval in Port Augusta and at Stirling North
a provide rea l-lttime public access to the monitoring data collected pursuant to ihis clause
b rnotify the EPA in writing of a ny resul ts of monitoring underlaken pursuant to ihis clause w hich indicatemiddot an exceedance of a mbient PM10 concentrations of 50 m icrograms per cubic metre for a 24 hour average period Notification to the EPA must occur within 24 hours of the exceedanoe
c incilude in any notification given pursuant to this clause the actions taken in response to the exceedance in order to mitigatemiddot impacts of PM10 from the Premises on the community
3 1 4 assess and interpret the results of monitoring undertaken pursuanl to th is condit ion to inform the impl ementation of dust mitigation and mana gemenl measures lbased on site-specific trigger valu es set out in the approved Dust Management Plan dated 03 Mardh 2017 or any oobsequent version approved in writing by the EPA
3 1 5 submit to the EPA on a monthly basis a summary of monitoring results for each 24 hour average peniod of ambient PM10 co ncentrations
31 6 upon req uesl of an Authorised Officer provide results of any moniloring undertaken pursuant to ihis condition
NOTES
Condition appticalile to Flinders Power Licence 13006
Fp RindtrsPower
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2 AMBIENT MONITORING A ND REPORTING (U - 6601
The licensee must
321 continuously monilor ambient sulphur dioxide and ambient nilrogen di oxide at a location (or locations) within the Port Augusta township approved in writing by the EPA
322 monitor ambient particulate concentrations (TSP and PM10) using a highshyvolume ai r sampler to determine the 24 hour average at freque111cies and location (or locations) within the Port Augusta or Stirling North township approved in writing by the EPA
323 undertake an investigatio11 to determine the source of any exceede11ce(s ) a11d provide to the EPA the outcomes of lhe i11vestigation if followi11g levels are exceeded at any monitor ing location(s)
a Sulphur dioxide 571 micrograms per cubic metre (detenmi11ed as a one hour average)
b Nitroge11 Dioxide 246 micrograms per cubic metre (determined as a 011e 11our average) a11d
c Ambient particulate oonce11trations (PM10) SCI micrograms per cubic metre (detem1ined as a 24 hour average) and
324 nolify the EPA wilhin seven days of a11y su~ hur dioxide exceedence as measured at the monitoring location(s) referred to in sub-condition 1 and
325 notify themiddot EPA in writing of any results of monitoring undertaken pursua11t to sub-condition 2 which indicate an exceedance of ambient PM10 con centratior1s of SCI micrograms per cubic metre for a 24 hour average period Nolificatio11 to the EPA musl occur within 24 hours of the exceedance
a include in a11y notification given pursuant to this clause the actions taken in response to the exceedancemiddot in order to mitigate impacts of PM10 trom the Premises on the community
326 submil to the EPA on a mo11thly basis a summary of monitoring results for ambient particulate concentrations (TSP and PM10) ambient 11itrogen dioxidemiddot and ambient sulphur dioxide
Fp RindtrsPower
Ambient Dust Monitoring ndash TSP amp PM10
To monitor the ambient air dust levels across the community there are a number of High Volume Air Samplers (HVAS) at strategic locations in Port Augusta and Stirling North There are two types of HVAS a total suspended particulate (TSP) type which samples all of the dust in the air and another for particulate matter 10 microns and smaller in diameter (PM10)
The following sets out the agreed ambient monitoring arrangements (per EPA authorisation of 30 August 2017)
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( middot~
Stir ling North Real-Time PMlO Community Monitor Contingency PMlO High-Volume Monitor
Fp RindtrsPower
Sign in
Operational Monitors
- Three Ecotech E-Sampler Particulate (PM10) Monitors (lsquoProtinus 1000rsquo) have been installed as follows
o The South Operational Monitor located on the southern Ash Storage Area boundary
o The East Operational Monitor located on the eastern Ash Storage Area boundary
o The North Operational Monitor located on the northern boundary of the Polishing Pond at the closest point of site to Port Augusta residences
- The units record real-time data at 5-minute intervals Data is available via the Ecotech online reporting system Eagle The SA EPA has been provided access to the Eagle system
- The system provides real-time trigger alerts to Flinders Power staff by email and SMS Alarm thresholds are defined in the Flinders Power Fugitive Dust Trigger Action and Response Plan
- A summary of data namely the monitoring results for each 24-hour average period of ambient PM10 concentrations will be provided to the EPA on a monthly basis
Real-Time PM10 Community Monitors
- Two Exactus Beta Attenuation Monitors (BAM) have been installed within the nearest identified sensitive human health receptors to the site one each at
o Lea Memorial Oval representing the closest community receptor in the dominant downstream wind direction from the site and
o Stirling North Primary School representing the background concentrations of regional dust conditions It also acts as a secondary community monitor for fugitive dust emissions from the site during south-westerly wind conditions
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Fp RindtrsPower
- Data is collected on a 10-minute average basis Data is available via the online reporting system Eagle The SA EPA has been provided access to the Eagle system
- The system provides real-time trigger alerts to Flinders Power staff by email and SMS Alarm thresholds are defined in the Flinders Power Fugitive Dust Trigger Action and Response Plan
- A summary of data namely the monitoring results for each 24-hour average period of ambient PM10 concentrations will be provided to the EPA on a monthly basis
- The data collected from these monitors will be utilised for community monitoring against the 24-hour ambient particulate concentrations limit (PM10 concentration of 50ugm3) Data from these monitoring stations is made publicly available in real-time at wwwflinderspowercomau
- A trigger alarm (via email) has been set whereby project staff will be alerted by email if there is an exceedance of 50 micrograms per cubic metre of air over a 24-hour average period Flinders will notify the EPA within 24hours should this occur along with an interpretation of the conditions of the day and details of any remedial actions were undertaken at the site
Daily Total Suspended Particulate (TSP) at Lea Memorial Oval
- A high-volume air sampler is located at Lea Memorial Oval and will be run each day to collect TSP data The filter paper will be kept on record for further analysis if required
- Three high-volume air sampler units will be located at the site and will be set to run on timer over weekends and public holiday periods
- The data is indicative of total dust in the vicinity of the monitor
- A summary of data namely the monitoring results for each 24 hour average period of ambient TSP concentrations will be provided to the EPA on a monthly basis
Contingency PM10 and TSP Monitoring Sites
- A contingency PM10 high-volume sampler will be retained at
o The Port Augusta Pigeon Club
o The Port Augusta Tennis Association
o Lea Memorial Oval
o Stirling North Primary School
- A contingency TSP high-volume sampler will be retained at
o Port Augusta Hospital
- These samplers will be operated
- On days of high potential dust (eg days when charge felling of infrastructure occurs)
- If dust levels arising from site increase warranting an increase in the monitoring frequency
- During times of an outage of the real-time monitors at Lea Memorial and Stirling North
- Periodically for calibration purposes
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Fp RindtrsPower
Speciation
One of the challenges in undertaking ambient monitoring for dust within the community is differentiating coal ash and soil particles derived from operational activities as distinct from natural regional dust A key differentiator is wind direction and strength The wind direction and strength for the day of measurement is captured within data reports and used to assist determine whether particles may have derived from the APS site Another method used is colour ndash a filter paper of a red colour may indicate a high contribution of natural regional dust and is particularly noticeable during regional dust storms A filter paper of a grey colour can indicate a contribution from the ash dam however the natural urban dust and wood smoke from domestic heaters tends to also be grey in colour A very dark greyblack tinge can indicate the contribution from coal dust The township of Port Augusta and surrounding communities is located in a desert climate and is subject to frequent dust storms from the arid interior The analysis of historical high ambient dust results against weather events shows a strong correlation with regional conditions
Another key data input is local knowledge On certain days there may be local activities eg development of the Central Oval or mowing at the Lea Memorial Oval) that may be a key contributor to local dust These conditions are noted on the monitoring results database
Along with ambient air dust sampling dust collected from various locations around the site including along the railway and around the Ash Storage Area and town have been sampled to determine the coal and ash content
Other methods to identify the sources of dust collected at monitoring stations are continually investigated
The results of speciation work undertaken by the EPA or Flinders Power will be taken into account and the plan may be updated to reflect any requirements arising from these
In late 2016early 2017 the EPA conducted dust sampling and analysis at a monitoring station located adjacent to the Ash Dam and from a station within the Port Augusta community The results of the sampling including assessment from SA Health are available on httpwwwepasagovaubusiness_and_industryindustry-updatesflinders-power-port-augusta The results of the analysis indicated that whilst the toxicity of the ash particulate is considered low the particle size warrants proactive management of dust from the ash dam
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Fp RindtrsPower
6 Dust Management Plan (DMP)
Plan Stakeholders - Roles and Responsibilities
Positions in Flinders Power have been identified and assessed as having direct influence over parts of the process involved with managing dust on the APS site The responsibilities of such positions are described here to ensure clear and progressive lines of accountability and communication for the purpose of implementing this Plan
Facility Manager APS
bull Approve and support the DMP Ensure ongoing compliance with the DMP bull Authorise the resources required to implement this plan bull Custodian of the lsquoAsh Storage Area Contingency Plan ndash Extreme Weather Monitoring amp
Response Planrsquo ndash Appendix E bull Consult with the Environmental Coordinator to determine appropriate environmental
management strategies and contingency measures required by the DMP bull Install and maintain dust management infrastructure including dust suppression sprays and
cannons bull Report actual and potential environmental incidents bull Ensure sufficient resources (personnel materials and equipment) are available to respond to
high dust events bull Consult with the Environmental Coordinator with respect to the management of contractors
for decommissioning demolition and rehabilitation activities that may affect the integrity and effectiveness of the DMP
bull Maintain dust management infrastructure to ensure ongoing effectiveness and reliability bull Liaise with environmental and allied Regulators bull Notification to Regulators of any adverse dust events bull Notification to Regulators of any material changes to dust management controls and bull Consult and liaise with community stakeholders including proactive notification of
actualpotential dust events
Program Director ndash Flinders Sites
bull DMP document owner bull Review and approve the DMP bull Provide advice andor assistance to the Facility Manager APS to ensure the DMP is
appropriately implemented in the workplace bull Liaise with environmental and allied Regulators bull Ensure the FP website has current and accurate environmental monitoring data and bull Consult and liaise with community stakeholders
Environmental Coordinator
bull Manage stockpile and Ash Storage Area operations in accordance with the provisions of this plan in order to minimise the creation of fugitive dust
bull Provide advice and or assistance to the Facility Manager APS to ensure the DMP is appropriately delivered and followed in the workplace
bull Coordinate sampling of PM10 and TSP high volume samplers bull Ensure dust monitoring equipment is functional and accurate
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Fp RindtrsPower
bull Collation and reporting of environmental monitoring data bull Ensure dust and weather monitoring equipment is functional and accurate bull Collate and deliver daily environmental data including 5-day weather forecast dust risk
rating BOM dust alerts BOM severe weather alerts and previous period environmental monitoring data
bull Ensure proactive and reactive notification mechanisms are in place bull Maintain interpret and communicate dust monitoring results bull Investigate DMP non-conformances or dust quality exceedences bull Determine appropriate management strategies and implement contingency measures in
consultation with the relevant managersupervisor bull Complete all required Internal and External reports required by the DMP bull Ensure the Incident Management System contains the details of incidents and complaints
related to the DMP bull Service and maintain ambient monitoring equipment in accordance with OEM instruction and
the Environmental Monitoring Plan bull Publishing and provision of real-time and monthly data reporting to the EPA and community
and
FP Project Management Team
bull Manage stockpile and Ash Storage Area operations in accordance with the provisions of this plan in order to minimise the creation of fugitive dust
Land Management Team
bull Maintain the Ash Storage Area to reduce dust generation
bull Inspect the Ash Storage Area levees and batters along with site roads and perform dust suppression actions as required
bull Wash down coal dust and spillages from underneath conveyor structures and ash from under the boiler area
bull Maintain site vegetation and
bull Perform any other dust mitigation actions around site as necessary
Alliance Team members (FP McMahons Services and subcontractors)
bull Implement Alliance Plans including Environmental Management Plan bull Ensure appropriate dust management controls are applied for specific demolition activities
eg charge felling bull Undertake operation activities in accordance with relevant Flinders Power policies
procedures management protocols plans statutory licence and contract requirements bull Implement appropriate environmental management measures and bull Report actual and potential environmental incidents to the Facility Manager via their
supervisor
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Fp RindtrsPower
Implementation and Control Actions
The Implementation and Control Actions in the DMP are based on the following specific items
bull Design and use of plant and equipment so as to control and minimise dust bull Development and application of work procedures which reduce the potential for dust bull Use of dust suppression techniques on the Ash Storage Area coal storage and handling
areas and bull Development and implementation of auxiliary techniques to monitor weather conditions
affecting site in particular the Ash Storage Area in order to implement the Trigger Action Response Plan (TARP)
The following Tables (1 to 5) document the potential coal air qualitydust impacts with associated control plans
This has been developed by utilising the 2014 Aspects and Impacts Register as the basis to identify the locations or activities with the highest risk of dust generation on the site and updating these to reflect the requirements during closure activities
The locationsactivities have been ranked according to the highest residual risk for the environmental aspects contained in each
Table 5 lsquoAspects and Control Action 5 Demolition Activitiesrsquo specifically references the Alliance Project Risk Register which relates to dust control for demolition activities
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Rindmlower
Table 1 Aspect and Control Action 1 Coal Stockpile Operations
The following action plan relates to the revegetation of the former stockpile area
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
FPP Project
Management Team
Civil works on
stockpile pad
Preparation for
revegetation
Coal dust amp
wind blown
soil
Air quality EPP (Air Quality) Major Likely Extreme-8 Dust Management Plan Access
to area during low wind speeds
Water truck
Irrigation water
sprinkler system
Minor Possible Mod-5 wind
directionspeed
ambient monitoring
ad-hoc dust
monitoring
Operator
training
Closure period
23 Environmental Services Coal stockpile
management
Coal dust Air quality EPP (Air Quality) Major Likely Extreme-8 Dust Management Plan
Sprays Water truck
Project Group Minor Unlikely Low-4 wind
speeddirection
ambient monitoring
Operator
awareness
General
conditions
Inherent Risk Operational Controls
Augusta Power Stations Environmental Aspects and Impacts Register
General Control Matrix
Area Potential impact Potential contaminants Rehabilitation Controls Responsible personnel
Coal Stockpile and Tower Pad Heavy machinery generating dust while operating on or near the stockpile where coal is present during revegetation activities and prior to vegetation becoming established
Air qualitydust movement off site due to wind speed and direction
Coal dust soil and surface dust Capping and revegetation of the former coal stockpile and tower pad to prevent future potential fugitive dust emissions It is proposed to carry on with site civil works to cap the coal stockpile and tower pad areas and follow behind with seeding with native seeds at a rate of 15kg per Ha consistent with the Ash Storage area The coal stockpile and tower pad area has the advantage of the ability to irrigate which is expected to facilitate germination and growth of the native vegetation
FPP Project Management Team
Surface ripping during low winds (lt35kmhr) Cease work when wind speeds increase (gt35kmhr) Use of water truck to wet surface Allowing surface to harden Installation of irrigation system Revegetation of pad surface Daily monitoring by Project Manager and Land Management Team Additional revegetation as required
FPP Project Management Team
Use of dust suppression chemicals on open areas as required
Environmental Coordinator
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Rindmlower
Daily weather reports for wind speed amp direction forecasting and provide advice to team
Environmental Coordinator
Manually operate the sprinkler systems on forecasted strong wind conditions prior to forecasted conditions Install a remote activation system to allow operation in unforeseen or non-forecasted events quickly
Environmental CoordinatorFacility Manager
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Rindmlower
Augusta Power St ations Environmental Aspects and Impacts Register Ref No Responsible Activity Location Enviro Aspect Enviro Impact Legal amp other lnheren t Risk Operat ional Controls Residual Risk Monito ring Training Note
Oep tBronchSection requirements
(cause) (effect) Consequence Ukelihood Roting Primary Support Consequence Likelihood Rating
5 Environmental Services Ash storage dam Oust (Ash) Air quality EPP (Air Qua I ity) M ajor Almost Edreme-9 Oust Management Plan TARP APS Ash St orage Major Unlikely High-6 daily in spections
management emissions certain dust suppr ession chemical Dam Insp ection ambi ent monitoring
applicat ion t o surface and Check Ii st JSP234 Ash 3 mont hly
levees rea l -t ime PM10 disposal pipe laying inspections
mentoring at ash dam and JSP235 V ehicle
w it hi n com munity t ext alerts operation in Ash
BOM moni t oring of weather Pond area
prediction s
212 Environmental Services Ash sto rage dam Oust Air quality EPP (Air Qua I ity) M ajor Almost Extreme-9 Dust Managem ent Plan TARP APS Ash St orage Major Unlikely High-6 daily in spections
management (Red sand) certain dust suppr ession chemical Dam Inspection ambient monitoring
emissions appl ication t o surface and Checklist JSP235 3 mont hly
levees t rained vehicle Vehicle operat ion in inspections
operators real -t i me PM10 Ash Po nd area
mentoring at ash dam and
wit hin com munity t ext alerts
BOM moni t oring of weather
predictions
Table 2 Aspects and Control Action 2 Ash Storage Area Management
The following action plan relates to the management of the Ash Storage Area (ASA)
General Control Matrix
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Ash Storage Area Generation of dust from the main surface of the Ash Storage Area including borrow pits on the south side
Surface dust from main pipework outfall area
Generation of ash dust from the inside of the western levee areas
Generation of ash dust from the inside of the Eastern levee areas
Southern levee surfaces and batters including areas where wind-blown ash has settled
Ash dust particles Use of dust suppression treatment on the surface of the ASA ndash Refer Appendix A and B
Trigger Action Response Plan (Refer to section 7)
Use of water carts and additional dust suppression on banks and roadways as required
Daily visual inspection and remedial works as required
Facility Manager APS Environmental Coordinator McMahon Services
Facility Manager
Land Management Team
Environmental Coordinator
Ash Storage Area ndash Implementation of long-term rehabilitation plan
Generation of red dust from the borrow pit during excavation and haulage
Generation of surface red dust from haul roads tofrom the borrow pit and the Ash Storage Area
Soil lsquored dustrsquo particles Monitoring of dust generation and use of dust suppression measures during the implementation of the long-term rehabilitation plan for the Ash Storage Area Refer to Appendix D Fugitive Dust Trigger Action Response Plan (Rev 4 29th May 2017)
Facility Manager APS
McMahon Services
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Rindmlower
Generation of red dust from topsoil fingers and ash dam surface after spreading
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Rindmlower
Table 3 Aspects and Control Action 3 Coal Conveyor System and General Site
The following action plan relates to the management of dust around the conveyor system and general site
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
62 Flinders Project
Services
Coal bin storage Coal dust Air quality EPP (Air Quality) Moderate Possible High-6 Enclosure wash down of built
up dust
Maintenance
routines
Moderate Rare Mod-4 ambient monitoring
maintenance
records
Augusta Power Stations Environmental Aspects and Impacts Register Inherent Risk Operational Controls
General Control Matrix
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Conveyors Residual coal dust generation from conveyors and bins around the station
Coal dust Enclosed structures Dust wash down (completed during Make Safe period) Defect hazard reporting Routine site inspection
Environmental Coordinator
Open areas Generation of dust from surfaces such as underneath conveyors and towers where coal has spilled or dust settled
Coal dust and surface dust Wash down with water hose when required
Land Management Coordinator
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Rindmlower
Demolition Control Actions
Table 4 Aspects and Control Action 4 Site Roads (General Conditions)
The following action plan relates to the management of dust roadways around site
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
21 Environmental Services Road traffic Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Moderate Possible High-6 Speed limits on-site
Routine road washing
Minor Unlikely Low-4 Site inspections
Augusta Power Stations Environmental Aspects and Impacts Register Inherent Risk Operational Controls
General Control Matrix
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Roads Generation of dust from road surfaces Coal dust and surface dust Water spray with water truck Street sweeper (hired as required)
McMahons Facility Manager APS
Printed copies are uncontrolled Please ensure you are referring to the most current version 29
set Issue or lmpr-ovement Opportunity
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btEen e-fl)C~lnI erth raunai_ ~s O swonm b ene itrJ [PlJrl rrto-erem m itiin aleelil on fe O=flier3lfnD ch3t COJll)any brffldF ~-
Inherent Risk Rating
llkeoll100ltI
2 Ml lOlt C ~ lY
RaiJno amp Pr1011ty
current ~ roaoh (Exktlng ContlOJGJ
W alH ih31 be utlJetl tor ttte p~e af dli~t 1~~b11 ltIUITQ demal tlbII iC1Mt Wta -r G ~ ~a~ middotbullbullth k lhae upPfe~rlg du1 d-rQ worts~ w ~ ~ng IL 3ter3 IMiCn ~Ucn XWrty
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~ 1 iRedu-ced lllcfilrty ctmng high WlJd~ Ou~ mcdtortlvl ~tQ 1slu-S i1od ete-cronlc monlmn
Rlsidu11 Risk Rating
Rallng amp Pr1ltlrlly
Modun l i
Proposld Mitigation o f Risk Exposure lmp-ovem1mt Aciions
Rkk Reduotlon Trbull abnbull nil o r Aa ef lmp(OWbullmefll
ov-edAoifon
Aotton owner
Rindmlower
T arglt Risk Rating
LllellhOOd
Table 5 Aspects and Control Action 5 Demolition Activities
The following action plan relates to the management of dust during specific demolition activities
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
McMahons Road traffic during
demolition activities
removal of material
off site
Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Moderate Possible High-6 Pre-task JSEA Site vehicle
speed limits
Routine road washing with
water truck
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Minor Unlikely Low-4 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons General Demolition
Activities
Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
Water areas with water hoses
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons General Civil Works Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
Water areas with water hoses
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons Stack Felling Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
Industrial mist fans
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons Bin Felling Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
Inherent Risk Operational Controls
Augusta Power Stations - Demolition Environmental Aspects and Impacts
Alliance Project Risk Assessment Register ndash Dust from demolition activities ndash extract
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Rindmlower
General Control Matrix (for Table 5 Aspects and Control Action 5 Demolition Activities)
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Stack Felling Generation of dust Coal dust ash and surface dust Vehicle speed limits Water shall be utilised for the purpose
McMahons Facility Manager APS
of dust suppression during demolition
Coal Bin Felling Generation of dust Coal dust ash and surface dust activity via air misters spotters with McMahons milk hoses suppressing dust during Facility Manager APS works as well as pre-wetting materials
General demolition activities Generation of dust Coal dust ash and surface dust before demolition activity commences McMahons water cannons built into large Facility Manager APS
General civil works Generation of dust Coal dust ash and surface dust
excavators spraying during demolition activity Plant movement minimised where
McMahons Facility Manager APS
Site traffic for demolition material removal
Generation of dust Coal dust ash and surface dust
possible to prevent excessive generation of dust If required water cart utilised to suppress seal ground area Reduced activity during high winds Dust monitoring using visual and electronic monitors
McMahons Facility Manager APS
Community and stakeholder engagement and information sharing of demolition events with potential for significant dust generation which may have an adverse effect on the community
Reclaim transport and use of ash from Generation of dust Ash dust Refer to task-specific JSEA developed McMahons the Ash Storage Area for demolition for the activity (Appendix F) Facility Manager APS activities (eg backfill of voids)
Reclaim transport and use of soil from Generation of dust Soil (red) dust McMahons the on-site borrow pit for demolition Facility Manager APS activities (eg backfill of voids topdressing working base for excavator)
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7 Ash Storage Area ndash Dust Management
The current approach for dust management on the Ash Storage Area (ASA) utilises regional weather predictions of wind speed and direction to inform activity planning and the implementation of dust management measures on the ASA
Historically infrequent events have occurred whereby rainfall on the ASA during the spring and summer months has caused the salt crust on the surface created by surface seawaterash slurry flooding to deteriorate and allow ash to become airborne in strong winds
Whole of ASA Dust Suppression Treatment
Conditions on the ASA since closure has shown that the normal dust suppression activities used (coffer dam building and surface flooding) have damaged the ASA surface allowing fine ash to be lifted from the surface A review of the dust suppression methods used on the ASA through August ndash October 2016 determined that the optimal method of dust suppression was to seal the whole of the ASA surface with a dust suppression treatment
An initial area of 15Ha in the middle of the ASA was sealed with dust suppression chemical in August 2016 which was applied by crop duster airplane The results of the sealing of this initial area were positive and after severe weather events during September and October 2016 causing large ash lift off events from the remainder of the ASA and dangerous conditions for machinery on the ASA levee banks it was decided to investigate the sealing of the whole of the main ASA
A risk assessment and proposal for the sealing of the ASA was developed in collaboration with the EPA and provided for review on the 21st October 2016 Approvals were provided and the project was completed on 22nd November 2016
Severe storm activity in the period 24-28th December 2016 impacted the dust suppressant seal which rapidly dried and led to a dust event on the 1st and 2nd January 2017
The use of a dust suppressant seal is an interim measure prior to the completion of the full rehabilitation program
Trigger Action Response Plan ndash Ash Storage Area
A Trigger Action Response Plan (TARP ndash refer Appendix D) has been developed incorporating the ldquostoplightrsquo performance monitoring tool and visual site inspections as the triggers The TARP will hold two key functions
- To monitor sealant condition and determine if further treatment is required to control ash dust generation from the Ash Storage Area and
- To monitor the generation of lsquored dustrsquo during the completion of the long term rehabilitation plan including soil trafficking emplacement and throughout the germination period of vegetation
A newly installed ambient dust monitoring system is also used to inform site staff of ldquoreal timerdquo airborne dust levels around the ASA and in two community monitoring sites These ldquoreal timerdquo levels
Printed copies are uncontrolled Please ensure you are referring to the most current version 32
Win
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irec
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w
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l
0
240
120
17 7
30
240
120
17 9
30
240
120
1711
30
240
120
171
33
0
240
12
01
71
53
0
I 24
01
2017
17
30
240
120
17 1
930
f~ 2
401
201
7 21
30
~~
240
120
172
33
0
i~
250
120
17 1
30
250
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17 3
30
I 25
01
2017
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ii
250
120
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250
120
179
30
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2017
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30
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250
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17 1
530
~
-[ i
n 25
01
2017
17
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171
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0
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d S
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mh
are used in conjunction with site visual observations to determine escalating trigger points within the TARP
The mitigation responses are drawn from the Aspect Control Actions appropriate for the identified triggers The site Incident Management System (IMS) is used as the action assignment and data recording tool
The TARP has been communicated to the appropriate site stakeholders to ensure appropriate actions are taken to mitigate dust from specific identified areasactivities on site
The Ash Storage Area has been identified as the key area for dust management and a three tiered process using wind forecasts has been developed with a daily weather forecast utilising a Red-Yellow-Green ldquostoplightrdquo type format Daily weather reports are reviewed for wind speeds forecasted to be over 35kmh in the proceeding days and a weather forecast chart is used to identify times of risk of generating dust
The chart below shows an example of the weather forecast prepared and communicated daily to site leaders
Figure 4 Example lsquostoplightrsquo TARP system for weather warning
The green band to show when potentially dust generating activities with heavy plant can take place A yellow band indicates when caution is required and a red band indicates times where it is likely that site activities may need to cease
The daily report is supplemented with the predicted weather conditions (sourced from weatherzonepro) for the next 6 day forecast period An example is provided in Figure 5 below
Printed copies are uncontrolled Please ensure you are referring to the most current version 33
flinderslower
Vlincl Speed (kph) kmh) vs Vf111cl Dir kmh) I Temperature (degC) vs Jgtreap Probab1l1tv () Last updated Tue 24 Jan 07 OD
AAAAAAAAAAA AAAAAAAAAA AAAAAAA gt-~A AA AA4AA ~~~AAA t-C DATE 24 )(Ill Tue TIME 0730
M ~~
VJn 1 c--ip(I 1_k(lhJ 1 ) 4 t 21 ~-5
WinDir A 351kmh v7
2_Jan ~ n
Figure 5 Example six-day predicted weather forecast
Further Flinders has access to the Bureau of Meteorology dust warning system which is checked daily and alerts issued with the daily environmental report An example dust warning is provided in Figure 6 below
Printed copies are uncontrolled Please ensure you are referring to the most current version 34
flinderslower
Local Time 1230 COST (dar l ) Base Da~middot 2017 02 01
Figure 6 Example BOM dust warning
Preparation for extreme weather events is documented in Appendix E Ash Storage Area ndash Extreme Weather Monitoring amp Response Plan
On high wind speed days the following example precautions will be undertaken where appropriate Full details are provided in the TARP (Appendix D)
bull Ensure safety of site staff and visitors
bull Monitor wind speeds using Bureau of Meteorology data
bull Cease work activities on the Ash Storage Area
bull Surface inspections to determine if ash is blowing off
bull Targeted action for high risk accessible areas and
Printed copies are uncontrolled Please ensure you are referring to the most current version 35
flinderslower
bull Notify stakeholders and the community if required (Port Augusta City Council community and SA EPA) in accordance with Section 5 of the APS Environmental Closure amp Post-Closure Plan
When a community complaint regarding dust is received by the company activities on the Ash Storage Area will be reviewed and ceased if deemed appropriate by the Flinders Power Facility Manager or delegate
Printed copies are uncontrolled Please ensure you are referring to the most current version 36
flinderslower
8 Former Coal Stockpile Areandash Dust Management
The NPS Coal Stockpile pad has been rehabilitated and revegetation of the surface is in progress
Whilst the vegetation is established the existing Coal Stockpile TARP will be followed as below
Flinders Power (FP) have made attempts to revegetate the existing former coal stockpile area in 2016 through to 2018 directly into coal however only relatively minor vegetation has established A site inspection conducted by Succession Ecology in August 2017 noted that revegetation over time will be successful however an alternate seed blend may expedite the process Additional seed was sown in September 2017 A lack of rainfall over the 201718 period has impaired germination
In order to expedite the timeframes associated with arid lands revegetation projects Flinders now propose to carry on with civil capping works currently being undertaken across the ash storage area to cap the approximate 15 Ha former coal stockpile and tower pad areas The existing irrigation infrastructure will be retained for future dust management and potentially for irrigation to initiate germination
The soil capping of this area is designed to mitigate fugitive coal dust emissions Additionally the borrow pit material will facilitate the revegetation of this area in order to establish a self-sustaining environment
Succession Ecology (SE) has inspected the area and is supportive of the capping
The soil capping will be seeded with a previously approved native seed (wet) mix which is salt tolerant as advised by SE due to the evident salinity levels in the area
Vegetation Monitoring will continue to occur
The irrigation will be mainly used for dust suppression but could be used for kicking off germination depending on what rains we receive and what success of germination we have from the rain The irrigation will remain operational in the case it may be required
FP has received endorsement of the approach from Kirsa Environmental
Timing for approval of capping of the former coal stockpile and tower pad area is critical as it is proposed to follow on from current site civil capping works into the proposed capping works associated with the former coal stockpile and tower pad areas
It is intended that the current fleet of civil plant will be utilised to complete the proposed capping scope of works
Trigger Action Response Plan ndashStockpile Revegetation
A (TARP) has been developed for revegetation work on the stockpile incorporating the ldquostoplightrsquo performance monitoring tool and visual site inspections as triggers
Stockpile revegetation has been identified as a key area for dust management and the stoplightrdquo Red-Yellow-Green weather forecast will also be used during activities on the stockpile pad To facilitate and expedite the revegetation of the former coal stockpile and tower pad areas it is proposed to cap the area using material from the existing borrow pit
The lsquostoplightrsquo format will use a Green band to show when potentially dust generating activities with heavy plant can take place according to the following weather conditions
Printed copies are uncontrolled Please ensure you are referring to the most current version 37
flinderslower
Any activities during a wind speed below 20kph (6 ms or 11 knots) from the SOUTH EAST to SOUTH WEST
A Yellow band will show the hours when potentially dust generating activities with heavy plant can take place according to the following
Any activities during a wind speed over 20kph (6 ms or 11 knots) from any wind direction other than from the SOUTH EAST to SOUTH WEST
A Red band will show the hours when potentially dust generating activities with heavy plant cannot take place
Any movement activities during a wind speed over 20kph (6 ms or 11 knots) from the SOUTH EAST to SOUTH WEST
Stockpile inactiveRevegetation Program
Proactive measures will be undertaken when strong wind conditions are forecasted by manually operating the former coal stockpile sprinkler system to dampen the area to prevent dust lift A remote operating system will be installed to provide a quick response to any non-forecasted or unforeseen weather events
Printed copies are uncontrolled Please ensure you are referring to the most current version 38
flinderslower
9 Dust Monitoring and Evaluation
Ongoing dust monitoring by either visual evaluation of ashcoalsoil dust generation on site or by interpretation of the results from the dust monitoring network will determine if dust mitigation measures are effective or additional measures are required
Groups responsible for inspections are described in the action tables and TARP Text and email alerts are automatically sent to a nominated group of responsible persons when dust wind speed and wind direction thresholds are exceeded These mechanisms are outlined in the TARP
The monitoring of real-time PM10 data from the boundary monitors of the Ash Storage Area is presented on a screen within the Flinders Power office on site and monitored by both Flinders Power and McMahon Services personnel A summary of data is provided in the daily environmental report
Access to real-time dust monitoring information for the Ash Storage Area and community monitoring stations is made available to the EPA A summary of real-time data for the community PM10 monitors is presented on the Flinders Power website and made openly available to the community
The monitoring of real-time PM10 data from Stirling North and Lea Memorial Oval is verified daily (M-F) by the Environmental Coordinator
The monitoring of ambient high-volume filter papers within the Port Augusta community is conducted daily by the site Environmental Coordinator
Printed copies are uncontrolled Please ensure you are referring to the most current version 39
flinderslower
10 Community and Stakeholder Engagement
Community and stakeholder engagement is detailed in the APS Closure and Post Closure Environmental Plan
A summary of these mechanisms are outlined below
Mechanism Target Group Posted on FP
website
Frequency Notes
Residents PACC MP Media EPA NRM Board
Special-interest groups
Weekly progress report
X X X No Weekly A summary of activities at the site including demolition and ash dam rehabilitation
Face-to-Face meetings site visits
X NA Monthly Monthly meetings with PACC CEO and Mayor when available
Annual environmental presentation
X Yes Annual Annual presentation to PACC ndash open public forum
Media release Infomercials
X X Yes Ad-hoc Strategic media release eg felling of PPS A station stack
Works Progress Fact Sheet
X X X X Yes Monthly Quarterly
A monthly progress update Letter drop
Focus topic fact sheet
X X X X X X X Yes Ad-hoc A brochure on a particular topic (eg ash dam Playford A building demolition) Letter drop
Flinders Power website
X X X X X X X Yes Regular updates
Information portal Links to FP YouTube account FP contact details
Flinders Power hotline amp email
X X X Yes NA All community complaints are logged
Special-interest presentations
X NA On request
Presentations or site visits on request (eg Rotary schools)
Community site visits
X NA On request
Actively invite community members
Community forum
X X Yes Monthly Group now established
Printed copies are uncontrolled Please ensure you are referring to the most current version 40
flinderslower
reference group
Community X Yes TBA May include site information tours days
SMS distribution list
X X X X X X X Yes Ad-hoc Rapid notification of dust incidents
Flinders power is also performing community sentiment monitoring using the following
- Daily media monitoring ndash print TV radio and online
- Complaints hotline amp email ndash central recording
- Facebook ndash linked with community forums
- FP personnel embedded within the community
- Feedback from SA Government Regulators
- Close relationships with PACC MPrsquos local media and community leaders
101 Complaint Management
Community complaints regarding nuisance coal dust and ash are to be dealt with according to the Complaint Handling Procedure contained in Appendix C
Printed copies are uncontrolled Please ensure you are referring to the most current version 41
flinderslower
References
Aurecon 2010 Alinta Northern Power Station Stockpile Dust Management Flinders Power Report ref 206865-001-01 9 September 2010
Environment Protection Act 1993 (SA)
EPA Licence 13006 (Northern and Playford Power Station)
EPA Licence 13011 (Leigh Creek to Port Augusta Railway Operations)
Flinders Power Environment amp Community Policy (June 2016)
Printed copies are uncontrolled Please ensure you are referring to the most current version 42
flinderslower
Appendices
Appendix A Ash Dam Interim Sealing ndash Proposal 7th November 2016
Appendix B Ash Dam Interim Sealing ndash Risk Assessment 2nd st January 2017
Appendix C Complaint Handling Procedure
Appendix D Fugitive Dust Trigger Action Response Plan (Rev 6 3rd January 2018)
Appendix E Ash Storage Area ndash Extreme Weather Monitoring amp Response Plan (Rev 0 3rd March 2017)
Appendix F JSEA for the excavation transport and use of soil and ash from the borrow pit or Ash Storage Area for demolition activities
Printed copies are uncontrolled Please ensure you are referring to the most current version 43
flinderslower
Appendix C
Complaint Handling Procedure
All complaints received by Flinders Power employees including security are handled according to the following steps
All complaint receivers are required to
bull Collect all details from the complainant (time location concerns)
bull Repeat back and confirm details with the complainant
bull Obtain complainants contact details
bull Advise relevant Supervisor immediately
The Facility Manager is to be advised as soon as practicable of receipt of the complaint
The complainant will be contacted and an investigation of the complaint initiated as soon as practicable of the receipt of the complaint The investigation typically may include
- A visit to the complainant to
o Observe local dust conditions
o Discuss the event with the complainant and
o Taking of samples
- A review of site data from the time of the incident
- A review of meteorological data
Following the investigation the complainant is to receive a written response outlining the investigation procedure and findings If requested the findings of the investigation will be explained and discussed with the complainant in person
Details of the complaint the investigation management actions implemented and follow up is recorded within the FP Incident Management System
All media enquiries are to be managed through the approved Flinders Power Media Protocols
Printed copies are uncontrolled Please ensure you are referring to the most current version 44
- Blank Page
- Blank Page
- Blank Page
- Blank Page
- Blank Page
- Blank Page
- Blank Page
- Blank Page
- Blank Page
- Blank Page
-
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
U l
Planned t
Completion Date i m
Consequence Likelihood Rating amp Priority
64 APS post
production
Oil removal Oil spillage Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 3 Moderate C Likely High 11
Station Instructions S17 Oil Spill procedure S315 Storage Handling and
Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil treatment plant Contaminated drain system Emergency Response Plan IMS water monitoring
programme
E ective 4 Minor E Unlikely Low 23
65 APS post
production
Waste oil storage Oil spillage Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 3 Moderate C Likely High 11
Bunded storage S17 Oil Spill procedure S315 Storage Handling and Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil treatment plant Emergency
Response Plan IMS water monitoring programme
E ective 3 Moderate E Unlikely Low 21
66 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major E Unlikely Medium 18 Bunded storage Emergency Response
Plan Spill response IMS E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
67 APS post
production
Fire Air quality Fire personnel
exposure Fire 3 Moderate E Unlikely Low 21
Storage controls (minimise ignition sources) Emergency Response Plan
Crisis Management Plan IMS E ective 3 Moderate E Unlikely Low 21
68 APS post
production
Discharges into the marine environment
Contaminated drains SPELS
Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 2 Major D Possible High 12
Chemical oil and fuel bunding oil separation maintenance of SPEL tanks
stormwater segregation review of routine to inspect SPEL tanks Emergency
Response Plan IMS water monitoring programme site inspections SPEL
cleanout routines
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
69 APS post
production
Oil -filled electrical equipment decommissioning and removal
Leakage Water quality
Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 2 Major E Unlikely Medium 18
Bunding S17 Oil Spill procedure JSP271 NPS Step-up Unit transformer amp line
isolator maintenance Emergency Response Plan Crisis Management Plan IMS monitoring of oil properties (eg PCB
content)
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
70 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major E Unlikely Medium 18 Containment of oil-filled equipment
Emergency Response Plan E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
71 APS post
production
Fire explosion Air quality
Fire personnel exposure
Fire 2 Major E Unlikely Medium 18 Permits containment E ective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
72 APS post
production
Battery Rooms decommissioning and removal
Acid spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 4 Minor D Possible Low 20
Bunded JSP052 Battery maintenance JSP315 Battery Bank Replacement S31
Chemwatch Maintenance routines Emergency Response Plan IMS
E ective 4 Minor E Unlikely Low 23
73 APS post
production
Fireexplosion (gas generation)
Air quality Fire personnel
exposure Fire 3 Moderate E Unlikely Low 21
Extraction system Maintenance routines Emergency Response Plan IMS
E ective 4 Minor E Unlikely Low 23
74 APS post
production
Fire pumps decommissioning
Fueloil spillage Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 4 Minor E Unlikely Low 23 S17 Oil Spill procedure Emergency
Response Plan IMS E ective 4 Minor E Unlikely Low 23
75 APS post
production
WorkshopsGarage decommissioning and demolition
Removal and disposal of dangerous substances spills
Water quality Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 3 Moderate E Unlikely Low 21
Bunded storage S31 Chemwatch Emergency Response Plan IMS Waste disposal documentation (WTCsWTFs)
E ective 4 Minor E Unlikely Low 23
76 APS post
production
Removal of dangerous substances incompatible storage fire
Air quality Personnel exposure
limit exceedence public nuisance complaints
enforcement action
Environmental 3 Moderate E Unlikely Low 21
Segregation of dangerous substances S31 Chemwatch S311 Storage
Handling and Disposal of solvents etc Emergency Response Plan IMS
E ective 3 Moderate E Unlikely Low 21
77 APS post
production
Disposal of oilycontaminated rags
Contaminated soil Soilgroundwater contamination clean up
actions enforcement actions
Environmental 4 Minor E Unlikely Low 23 Segregation for disposal E ective 5 Insignificant E Unlikely Low 25
78 APS post
production
Grit blasting decommissioning and demolition
particulate emissions
Air quality water quality
Air soil amp groundwater contamination clean up
actions enforcement actions
Environmental 3 Moderate D Possible Medium 16
Removal and disposal of grit washdown prior to demolition Containment of
washdown water E ective 4 Minor E Unlikely Low 23
79 APS post
production
Demolition general Lead emissions (from lead-based paints)
Personnel exposure limit exceedence public
nuisance complaints enforcement action
Environmental 3 Moderate E Unlikely Low 21
lead paint testing dust control processes Maintenance routines lead in paint testing
(as required) and recorded E ective 4 Minor E Unlikely Low 23
80 APS post
production
Refrigerationair conditioning servicing decommissioning (as required)
Release of ozone depleting substances
Depletion of Ozone layer
Environmental harm regulatory enforcement
Environmental 3 Moderate D Possible Medium 16
ARC licensed operators ozone-depleting gas reclaim for decommissioned equipment Audits based on ARC
requirements JSP372 Air Conditioner Maintenance Records of ozone-depleting
substances reclaim etc
E ective 3 Moderate E Unlikely Low 21
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
U l t i m
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
Planned Completion Date
Consequence Likelihood Rating amp Priority
Sewerage system Sewage overflow Water quality Spill entering onsite
81 APS post
production
relocation of services (caused by decommissioning and
drains system discharge to Gulf
waters enforcement Environmental 4 Minor D Possible Low 20
Response to sewer chokes JSP028 Sewage Pit pump and control repairs
Emergency Response Plan IMS E ective 4 Minor E Unlikely Low 23
demolition) action
bullmiddotmiddot - ~- alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 2 Unit 3 Area as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates
records ffective 4 Minor E Unlikely Low 23
18 Heath
Safety amp Security
Land management landscaping (post decommissionin gdemolition)
Maintaining amp improving landscaping
Improved site amenity
Poor visual amenity soil erosion dust
Environmental Final landforms and potential
landscaping plan ffective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections ffective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissionin gdemolition
Dust emissions Air quality Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust
suppressant if required) Hi VolDustTrak dust monitoring on site
boundary
ffective 4 Minor E Unlikely Low 23
23 Environmen tal Services
Environmental Compliance decommissionin gdemolition
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting
environmental checklist for decommissioningdemolition
Surrender of EPA Licence Site Environmental Awareness Induction S4G29 Hazard
Inspections update induction material for
decommissioningdemolition Water Sampling Program stack and
ambient monitoring reporting on EMP and reporting to EPA
ffective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environmen tal Services
Site environmental performance monitoring decommissionin gdemolition
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS
Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during decommissioningdemolition (eg HI_Vol and noise) IMS regular
monitoring reports (eg weekly) Monitoring programmes and regular
reporting
ffective 3 Moderate E Unlikely Low 21
33 Environmen tal Services
Site operations decommissionin gdemolition
Noise Nuisance Public nuisance
complaints enforcement action
Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm
weekdays 8am-6pm weekends) boundary noise monitoring
ffective 3 Moderate E Unlikely Low 21
35 Environmen tal Services
Historical operations post decommissionin gdemolition
Discharges to soilgroundwat er landfills
Soilgroundwater contamination Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular monitoring
of known groundwater contamination
ffective 3 Moderate E Unlikely Low 21
36 Environmen tal Services
Environmental incidents decommissionin gdemolition
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for decommissioningdemolition
activities) IMS Incident Management System
ffective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
37 Environmen tal Services
Environmental awareness decommissionin gdemolition
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for
decommissioningdemolition activities) training and induction records (for decommissioning
demolition induction)
ffective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
38 Environmen tal Services
Environmental auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition requirements (eg demolition
approval conditions)
ffective 3 Moderate E Unlikely Low 21
39 Environmen tal Services
Community complaints decommissionin gdemolition
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to complainant Complaints Register
Internal media advisor Reporting to management
ffective 3 Moderate E Unlikely Low 21
40 Environmen tal Services
Annual community consultation post operation
Community perception of organisation
Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Compliance calendar ffective 3 Moderate E Unlikely Low 21
41 Environmen tal Services
Potable water use decommissionin gdemolition
Excessive potable water use
Resource waste
Water overuse financial cost increased risk of
Gulf contamination Resource 3 Moderate E Unlikely Low 21
Re-location of services prior to demolition
ffective 4 Minor E Unlikely Low 23
bullmiddotmiddot middot~ bullmiddot ~- alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 4a Coal Stockpile amp Rail Loop Area as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed
estimates records ffective 4 Minor E Unlikely Low 23
17 Heath
Safety amp Security
Land management heritage (decommissioningd emolition)
Damage to aboriginal andor post settlement heritage items
Damage to heritage items Damage to or loss of
Native amp Heritage items sites
Heritage 3 Moderate E Unlikely Low 21
Site Environmental Awareness Induction
confirmation of any potential heritage sites within impacted
area
ffective 3 Moderate E Unlikely Low 21
18 Heath
Safety amp Security
Land management landscaping (post decommissioningde molition)
Maintaining amp improving landscaping
Improved site amenity Poor visual amenity soil
erosion dust Environmental
Final landforms and potential landscaping plan
ffective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections ffective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissioningde molition
Dust emissions Air quality
Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads
(use of dust suppressant if required) Hi VolDustTrak
dust monitoring on site boundary
ffective 4 Minor E Unlikely Low 23
23 Environmen tal Services
Environmental Compliance decommissioningde molition
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting environmental
checklist for decommissioningdemolition
Surrender of EPA Licence Site Environmental
Awareness Induction S4G29 Hazard Inspections update
induction material for decommissioningdemolition Water Sampling Program
stack and ambient monitoring reporting on EMP and
reporting to EPA
ffective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
24 Environmen tal Services
Coal stockpile management pre-decommissioning (utilisation of stockpile)
Coal dust Air quality
Limit exceedence public nuisance
complaints enforcement action
Environmental 2 Major C Likely High 7
Dust Management Plan Sprays Water truck JSP 322 -paper mulch Project Group
IMS daily checks and records wind speeddirection
ambient monitoring
ffective 4 Minor E Unlikely Low 23
25 Environmen tal Services
Site environmental performance monitoring decommissioningde molition
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS
JSP403 APS Environmental water sampling for SS pH
and salinity Additional siteboundary monitoring
required during decommissioningdemolition (eg HI_Vol and noise) IMS
regular monitoring reports (eg weekly) Monitoring
programmes and regular reporting
ffective 3 Moderate E Unlikely Low 21
26 Environmen tal Services
Ambient environmental monitoring instrumentation calibration (decommissioningd emolition)
Environmental monitoring
Non compliance
Nil Improper process in place
Procedural 3 Moderate D Possible Medium 16
JSP400 APS Environmental water sampling at APS Calibration program and
records Maintenance routines
ffective 3 Moderate E Unlikely Low 21
33 Environmen tal Services
Site operations decommissioningde molition
Noise Nuisance
Public nuisance complaints
enforcement action Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm weekdays 8am-6pm weekends) boundary
noise monitoring
ffective 3 Moderate E Unlikely Low 21
34 Environmen tal Services
Site operations decommissioningde molition
Spillage of stored materials and wastes
Water quality
Spill entering onsite drains system
discharge to Gulf waters enforcement
action
Environmental 2 Major E Unlikely Medium 18
IMS regular updating of actions site inspections (required by ECA) S31
Chemwatch S311 Storage Handling and Disposal of solvents etc Emergency
Response Plan Crisis Management Plan IMS
inspection records
ffective 3 Moderate E Unlikely Low 21
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
35 Environmen tal Services
Historical operations post decommissioningde molition
Discharges to soilgroundwat er landfills
Soilgroundwater contamination Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular
monitoring of known groundwater contamination
ffective 3 Moderate E Unlikely Low 21
36 Environmen tal Services
Environmental incidents decommissioningde molition
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for
decommissioningdemolition activities) IMS Incident Management System
ffective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
37 Environmen tal Services
Environmental awareness decommissioningde molition
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction
(reviewed for decommissioningdemolition
activities) training and induction records (for
decommissioning demolition induction)
ffective 4 Minor E Unlikely Low 23
38 Environmen tal Services
Environmental auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include
decommissioningdemolition requirements (eg demolition
approval conditions)
ffective 3 Moderate E Unlikely Low 21
39 Environmen tal Services
Community complaints decommissioningde molition
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation
Directed response to complainant Complaints Register Internal media
advisor Reporting to management
ffective 3 Moderate E Unlikely Low 21
40 Environmen tal Services
Annual community consultation post operation
Community perception of organisation
Non compliance Nil Improper process in
place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar ffective 3 Moderate E Unlikely Low 21
41 Environmen tal Services
Potable water use decommissioningde molition
Excessive potable water use
Resource waste Water overuse financial
cost increased risk of Gulf contamination
Resource 3 Moderate E Unlikely Low 21 Re-location of services prior
to demolition ffective 4 Minor E Unlikely Low 23
43 Loco
refueling area
Loco refueling area (decommissioningd emolition)
Historical oilfuel spillage
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 3 Moderate C Likely High 11 Review for any potential
contamination ffective 3 Moderate E Unlikely Low 21
44
Post production
coal stockpile
area
Runoff from coal stockpile area (post operation)
Water quality (runoff)
Water quality Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 3 Moderate C Likely High 11
Collection no direct marine discharges water monitoring
programme ffective 4 Minor E Unlikely Low 23
45
Post production
coal stockpile
area
Post operation coal stockpile area
Fire (spontaneous combustion)
Air quality Fire smokeparticulate
emissions public amp personnel exposure
Fire 3 Moderate E Unlikely Low 21
Develop strategy to reduce risks of spon com In post operational coal stockpile area Monitoring by Alinta
staff IMS
ffective 4 Minor E Unlikely Low 23
middot bullmiddotmiddot - ~ - al1ntaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 4b Ash Dam ABC Lake amp Polishing Pond as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
6 Heath
Safety amp Security
Ash storage dam management decommissioning demolition
Dust emissions Air quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 3 Moderate D Possible Medium 16
Maintenance work with periodic salt water flooding to maintain crust plus chemical
coating treatment of levees Ash Storage Dam Development Recommendations Ash Storage Dam Management Responsibilities Matrix Develop strategies for management
during decommissioningdemolition and long-term APS Ash Storage Dam
Inspection Checklist JSP234 Ash disposal pipe laying JSP235 Vehicle operation in
Ash Pond area IMS daily inspections ambient monitoring 3 monthly inspections
Effective 3 Moderate E Unlikely Low 21
7 Heath
Safety amp Security
Water emissions (including seepage)
Water quality (carryover of ash trace elements nutrients pH)
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major D Possible High 12
Refer to 6 detention time seeping interception and pump-back review need for
additional floating curtainoil capture daily inspections weekly water sampling water quality monitoring programme 3 monthly
inspections
Effective 3 Moderate E Unlikely Low 21
8 Heath
Safety amp Security
Groundwater contamination
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18 Refer to 7 groundwater monitoring
programme Effective 4 Minor D Possible Low 20
9 Heath
Safety amp Security
Visual impact Amenity Complaints local action
media attention regulatory involvement
Community 3 Moderate C Likely High 11 Screening planting inspection records Effective 4 Minor D Possible Low 20
10 Heath
Safety amp Security
Breeding of midges
Amenity Public health niusance complaints local action
media attention regulatory involvement
Community 3 Moderate C Likely High 11
Control of salinity Site inspections long-term plan for ash storage area Weekly
water sampling Effective 4 Minor E Unlikely Low 23
11 Heath
Safety amp Security
Ash storage dam leakage (eg levee breach) post decommissioning demolition
Water quality Marine contamination mangrove destruction
Marine contamination clean up actions
enforcement actions Environmental 2 Major E Unlikely Medium 18
Refer to 5 perimeter dam wall design inspections Emergency Response Plan
Crisis Management Plan IMS Ash Storage Pond Closure Plan (need to consider long-term stability of levees) daily inspections 3
monthly inspections inspection records
Effective 2 Major E Unlikely Medium 18
12 Heath
Safety amp Security
Land contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major E Unlikely Medium 18
Refer to 6 daily inspections access controls review risks from
decommissioning processes (eg oilhazardous materials removal from
equipment) contain on site Emergency Response Plan Crisis Management Plan
IMS daily inspections
Effective 2 Major E Unlikely Medium 18
14 Heath
Safety amp Security
Fire on site decommissioning demolition
Contaminated fire water discharge
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Contaminated drains system Emergency Response Plan Crisis Management Plan
review options re containment of fire water eg within ABC Lake in preference to
discharge to ash pond storage Maintenance routines Station Instruction
S17 (Spill Response) IMS Plant monitoring
Effective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
15 Heath
Safety amp Security
Site security decommissioning demolition
vandalism Site amenity Site damage injury to
persons Security 3 Moderate D Possible Medium 16
Site security systems Emergency Response Plan
Effective 3 Moderate E Unlikely Low 21
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates records
Effective 4 Minor E Unlikely Low 23
18 Heath
Safety amp Security
Land management landscaping (post decommissioning
Maintaining amp improving landscaping
Improved site amenity Poor visual amenity soil
erosion dust Environmental
Final landforms and potential landscaping plan
Effective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections Effective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissioning demolition
Dust emissions Air quality Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust suppressant if required) Hi VolDustTrak dust monitoring
on site boundary
Effective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement Action Owner
Strategic or Approved Action
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
23 Environment al Services
Environmental Compliance decommissioning demolition
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting
environmental checklist for decommissioningdemolition Surrender of
EPA Licence Site Environmental Awareness Induction S4G29 Hazard
Inspections update induction material for decommissioningdemolition Water
Sampling Program stack and ambient monitoring reporting on EMP and reporting
to EPA
Effective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environment al Services
Site environmental performance monitoring decommissioning demolition
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during decommissioningdemolition (eg HI_Vol and noise) IMS regular monitoring reports (eg
weekly) Monitoring programmes and regular reporting
Effective 3 Moderate E Unlikely Low 21
26 Environment al Services
Ambient environmental monitoring instrumentation calibration (decommissioning demolition)
Environmental monitoring
Non compliance
Nil Improper process in place
Procedural 3 Moderate D Possible Medium 16
JSP400 APS Environmental water sampling at APS Calibration program and records
Maintenance routines Effective 3 Moderate E Unlikely Low 21
32 Environment al Services
Discharges into the marine environment decommissioning demolition (including use or removal of bulk chemicals)
Contaminated drains SPELS
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Chemical oil and fuel bunding oil separation stormwater segregation
monitoring of stormwater control systems S310 (Ferrous sulphate) S311 (Solvents) S313 (Sodium hypochlorite) S315 (Waste
oil) Pump outs Decommissioning and demolition within containment (minimise
direct discharges to marine environment) Emergency Response Plan IMS water monitoring programme site inspections
Effective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
33 Environment al Services
Site operations decommissioning demolition
Noise Nuisance Public nuisance complaints
enforcement action Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm weekdays 8am-6pm weekends) boundary noise monitoring
Effective 3 Moderate E Unlikely Low 21
34 Environment al Services
Site operations decommissioning demolition
Spillage of stored materials and wastes
Water quality Spill entering onsite
drains system discharge to Gulf
waters enforcement action
Environmental 2 Major E Unlikely Medium 18
IMS regular updating of actions site inspections (required by ECA) S31
Chemwatch S311 Storage Handling and Disposal of solvents etc Emergency
Response Plan Crisis Management Plan IMS inspection records
Effective 3 Moderate E Unlikely Low 21
35 Environment al Services
Historical operations post decommissioning demolition
Discharges to soilgroundwat er landfills
Soilgroundwater contamination
Soilgroundwater contamination clean up
actions enforcement actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular monitoring of
known groundwater contamination Effective 3 Moderate E Unlikely Low 21
36 Environment al Services
Environmental incidents decommissioning demolition
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for decommissioningdemolition activities) IMS
Incident Management System Effective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to be
used (IMS)
Alinta Energy Earlymid 2016
37 Environment al Services
Environmental awareness decommissioning demolition
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for decommissioningdemolition activities) training and induction records
(for decommissioning demolition induction)
Effective 4 Minor E Unlikely Low 23
38 Environment al Services
Environmental auditing (and forwarding summary to EPA) review requirement post
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition requirements
(eg demolition approval conditions) Effective 3 Moderate E Unlikely Low 21
39 Environment al Services
Community complaints decommissioning demolition
Amenity community perception of organisation
Nuisance
Complaints local action media attention
regulatory involvement Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to
complainant Complaints Register Internal media advisor Reporting to management
Effective 3 Moderate E Unlikely Low 21
40 Environment al Services
Annual community consultation post operation
Community perception of organisation
Non compliance Nil Improper process in
place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar Effective 3 Moderate E Unlikely Low 21
41 Environment al Services
Potable water use decommissioning demolition
Excessive potable water use
Resource waste Water overuse financial cost increased risk of
Gulf contamination Resource 3 Moderate E Unlikely Low 21 Re-location of services prior to demolition Effective 4 Minor E Unlikely Low 23
bullmiddotmiddot -~ - - alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 7 Hospital Creek as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure
Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
16 Heath
Safety amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates
records ffective 4 Minor E Unlikely Low 23
18 Heath
Safety amp Security
Land management landscaping (post decommissio ningdemolitio n)
Maintaining amp improving landscaping
Improved site amenity
Poor visual amenity soil erosion dust
Environmental Final landforms and potential
landscaping plan ffective
19 Heath
Safety amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections ffective 4 Minor E Unlikely Low 23
22 Heath
Safety amp Security
Road traffic decommissio ningdemolitio n
Dust emissions Air quality Limit exceedence public nuisance
complaints enforcement action
Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust suppressant if required) Hi VolDustTrak dust monitoring on
site boundary
ffective 4 Minor E Unlikely Low 23
23 Environmen tal Services
Environment al Compliance decommissio ningdemolitio n
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA
reporting environmental checklist for decommissioningdemolition Surrender of EPA Licence Site
Environmental Awareness Induction S4G29 Hazard
Inspections update induction material for
decommissioningdemolition Water Sampling Program stack
and ambient monitoring reporting on EMP and reporting to EPA
ffective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environmen tal Services
Site environmenta l performance monitoring decommissio ningdemolitio n
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place
Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS
Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during
decommissioningdemolition (eg HI_Vol and noise) IMS regular monitoring reports (eg weekly) Monitoring programmes and
regular reporting
ffective 3 Moderate E Unlikely Low 21
32 Environmen tal Services
Discharges into the marine environment decommissio ningdemolitio n (including use or removal of bulk chemicals)
Contaminated drains SPELS
Water quality
Contaminated water entering the Gulf
damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18
Chemical oil and fuel bunding oil separation stormwater
segregation monitoring of stormwater control systems
S310 (Ferrous sulphate) S311 (Solvents) S313 (Sodium
hypochlorite) S315 (Waste oil) Pump outs Decommissioning and
demolition within containment (minimise direct discharges to
marine environment) Emergency Response Plan IMS water monitoring programme site
inspections
ffective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
33 Environmen tal Services
Site operations decommissio ningdemolitio n
Noise Nuisance Public nuisance
complaints enforcement action
Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm
weekdays 8am-6pm weekends) boundary noise monitoring
ffective 3 Moderate E Unlikely Low 21
35 Environmen tal Services
Historical operations post decommissio ningdemolitio n
Discharges to soilgroundwat er landfills
Soilgroundwater contamination Soilgroundwater
contamination clean up actions enforcement
actions
Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular
monitoring of known groundwater contamination
ffective 3 Moderate E Unlikely Low 21
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential
Consequences Exposure
Type Consequence Likelihood
Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement Action Owner
Strategic or Approved Action
UPlanned
lCompletion
tDate
i
Consequence Likelihood Rating amp Priority
36 Environmen tal Services
Environment al incidents decommissio ningdemolitio n
Various Environmental harm
Nil Improper process in place
Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for
decommissioningdemolition activities) IMS Incident Management System
ffective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
37 Environmen tal Services
Environment al awareness decommissio ningdemolitio n
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place
Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for
decommissioningdemolition activities) training and induction records (for decommissioning
demolition induction)
ffective 4 Minor E Unlikely Low 23
38 Environmen tal Services
Environment al auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition requirements (eg demolition
approval conditions)
ffective 3 Moderate E Unlikely Low 21
39 Environmen tal Services
Community complaints decommissio ningdemolitio n
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to complainant
Complaints Register Internal media advisor Reporting to
management
ffective 3 Moderate E Unlikely Low 21
40 Environmen tal Services
Annual community consultation post operation
Community perception of organisation
Non compliance
Nil Improper process in place
Procedural 3 Moderate E Unlikely Low 21 Compliance calendar ffective 3 Moderate E Unlikely Low 21
41 Environmen tal Services
Potable water use decommissio ningdemolitio n
Excessive potable water use
Resource waste
Water overuse financial cost increased risk of
Gulf contamination Resource 3 Moderate E Unlikely Low 21
Re-location of services prior to demolition
ffective 4 Minor E Unlikely Low 23
bullbull -~J- alintaenergy
ALINTA ENERGY - Augusta Power Stations Closure RISK REGISTER
Area 8 Playford Power Stations as at 12-Oct-15
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
1 General Office activities
Energy use Resource use Energy overuse Resource 5 Insignificant C Likely Low 22
waste disposal costs and recyclingsalvage revenue
E ective 5 Insignificant C Likely Low 22
2 General
General waste management
General waste Resource use
Excessive waste generation Resource 4 Minor C Likely Medium 17
Waste segregation JSP 320 Unloading and Handling of Rubbish
Skips monitor re contamination E ective 5 Insignificant E Unlikely Low 25
3
General equipment
decommission ing
Industrial waste management (ex-asbestos) (Waste oil considered separately)
Industrial waste [local] storage and transport to site storage area
Waste disposalrecycling soilgroundwater contamination
Improper waste disposal contamination of waste
destination enforcement action Waste 3 Moderate C Likely High 11
Waste Management at APS S38 Disposal Procedure for Aerosol cans
etc S311 Storage Handling and Disposal of solvents etc amp S315 Storage Handling and Disposal of waste oil JSP 320 Unloading and
Handling of Rubbish Skips monitor to ensure clear identification
samplinganalysis if required Maintain waste disposal records (eg WTCs or
WTFs)
E ective 3 Moderate E Unlikely Low 21
4 APS post
production
Asbestos management
Asbestos removal storage and disposal
Air quality
Airborne asbestos enforcement action
Human Health 2 Major D Possible High 12
S32 Asbestos Management System amp site procedures qualified contractor S37 Guidelines for the safe use of insulation of materials containing
SMFs Asbestos Register air monitoring waste disposal records
(WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
5 General
decommission ing
Industrial Waste water (contaminate d drains and ash)
Overflows Marine pollution
Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 2 Major E Unlikely Medium 18
JSP117 Drain cleaning amp JSP228 Ash Pit cleaning block drains within work
areas that discharge directly to marine environment if practicable Emergency
Response Plan Spill response IMS water monitoring programme disposal
records (WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
13 Heath Safety
amp Security
Implement contingency plan decommissio ningdemoliti on
environmental contingencies
Environmental harm
Nil Improper process in place Procedural 2 Major E Unlikely Medium 18
Emergency response plans (reviewed annually) review for decommissioning demolition activities (after project plan
has been developed) Crisis Management Plan Review response
equipment and training Support procedures eg Incident Management System Station Instruction S17 (Spill
Response) S316 (Spill Reporting) S18 (Fire Reporting) S4G29 Hazard
inspections amp JSP385 Use of emergency boat IMS IMS
E ective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm
Alinta Energy Earlymid 2016
14 Heath Safety
amp Security
Fire on site decommissio ningdemoliti on
Contaminated fire water discharge
Water quality
Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 2 Major E Unlikely Medium 18
Contaminated drains system Emergency Response Plan Crisis
Management Plan review options re containment of fire water eg within
ABC Lake in preference to discharge to ash pond storage Maintenance
routines Station Instruction S17 (Spill Response) IMS Plant monitoring
E ective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
15 Heath Safety
amp Security
Site security decommissio ningdemoliti on
vandalism Site amenity
Site damage injury to persons Security 3 Moderate D Possible Medium 16 Site security systems Emergency
Response Plan E ective 3 Moderate E Unlikely Low 21
16 Heath Safety
amp Security
Land management herbicide use
Overspray of herbicide
Impact on flora Damage to local flora
enforcement action Environmental 4 Minor D Possible Low 20
Restricted spraying to low wind speed wind speed estimates records
E ective 4 Minor E Unlikely Low 23
18 Heath Safety
amp Security
Land management landscaping (post decommissio ningdemoliti on)
Maintaining amp improving landscaping
Improved site amenity
Poor visual amenity soil erosion dust
Environmental Final landforms and potential
landscaping plan E ective
19 Heath Safety
amp Security
Land management pest plants and animals
Weed infestation feral animals
Ecological impact impact on non-target species
Wasteland effect disease reservoirs
Environmental 4 Minor D Possible Low 20 Site inspections E ective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
20 Heath Safety
amp Security
Waste recycling area(s) decommissio ningdemoliti on
Waste management
Resource use
Improper waste disposal contamination of waste
destination enforcement action Resource 3 Moderate E Unlikely Low 21
Waste segregation (to improve recycling re-use) Waste management
Process Site Map S311 Storage Handling and Disposal of solvents etc Determine if the area is adequate for
decommissioningdemolition Establish additional areas for staging of material prior to re-use on site andor disposal
Control runoff (via containment pond(s) Site inspections routine visits by external recycling contractor S37
Guidelines for the safe use of insulation materials containing SMF
waste recycling records Waste disposal records (WTCs and WTFs)
E ective 4 Minor E Unlikely Low 23
21 Heath Safety
amp Security
Disposal of mercury-containing lighting (eg fluoros) decommissio ning
Landfill Soilgroundwater contamination
Improper waste disposal contamination of waste
destination enforcement action Resource 4 Minor E Unlikely Low 23
Waste segregation managed by appropriate waste management company Waste management
Process Site Map S38 Disposal Procedure for Aerosol cans empty
fluid drums small batteries permalubes and mercury globes
Provide labelled containers (eg 200L drums) for storage prior to removal Waste disposal records (WTCs and
WTFs)
E ective 5 Insignificant E Unlikely Low 25
22 Heath Safety
amp Security
Road traffic decommissio ningdemoliti on
Dust emissions Air quality
Limit exceedence public nuisance complaints
enforcement action Environmental 4 Minor D Possible Low 20
Routine road washing Dust control for unmade roads (use of dust suppressant if required) Hi
VolDustTrak dust monitoring on site boundary
E ective 4 Minor E Unlikely Low 23
23 Environmental
Services
Environment al Compliance decommissio ningdemoliti on
Ensure awareness of environmental compliance
Environmental non compliance
Nil Improper process in place Procedural 2 Major E Unlikely Medium 18
Annual compliance audit daily APS reporting monthly EPA reporting
environmental checklist for decommissioningdemolition
Surrender of EPA Licence Site Environmental Awareness Induction S4G29 Hazard Inspections update
induction material for decommissioningdemolition Water
Sampling Program stack and ambient monitoring reporting on EMP and
reporting to EPA
E ective 2 Major E Unlikely Medium 18
General Environmental Awareness training for all onsite staff Specific
reference to compliance and regulatory in Alinta Closure Environmental
Management Plan including reporting timetable
Alinta Energy demolition contrator
Through to demolition completion
25 Environmental
Services
Site environmenta l performance monitoring decommissio ningdemoliti on
Air emissions ambient air and water biennial assessment of seagrasses ash pond leachate and groundwater conditions
Non compliance
Nil Improper process in place Procedural 3 Moderate C Likely High 11
JSP400 APS Environmental water sampling at APS JSP403 APS
Environmental water sampling for SS pH and salinity Additional
siteboundary monitoring required during decommissioningdemolition (eg HI_Vol and noise) IMS regular
monitoring reports (eg weekly) Monitoring programmes and regular
reporting
E ective 3 Moderate E Unlikely Low 21
32 Environmental
Services
Discharges into the marine environment decommissio ningdemoliti on (including use or removal of bulk chemicals)
Contaminated drains SPELS
Water quality
Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 2 Major E Unlikely Medium 18
Chemical oil and fuel bunding oil separation stormwater segregation
monitoring of stormwater control systems S310 (Ferrous sulphate) S311 (Solvents) S313 (Sodium
hypochlorite) S315 (Waste oil) Pump outs Decommissioning and demolition
within containment (minimise direct discharges to marine environment)
Emergency Response Plan IMS water monitoring programme site
inspections
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
33 Environmental
Services
Site operations decommissio ningdemoliti on
Noise Nuisance
Public nuisance complaints enforcement action
Environmental 2 Major E Unlikely Medium 18
Noisy activities (eg demolition) within set hours (7am-6pm weekdays 8am-
6pm weekends) boundary noise monitoring
E ective 3 Moderate E Unlikely Low 21
35 Environmental
Services
Historical operations post decommissio ningdemoliti on
Discharges to soilgroundwater landfills
Soilgroundwater contamination
Soilgroundwater contamination clean up actions enforcement
actions Environmental 2 Major D Possible High 12
closure remediation plan and implementation regular monitoring of
known groundwater contamination E ective 3 Moderate E Unlikely Low 21
36 Environmental
Services
Environment al incidents decommissio ningdemoliti on
Various Environmental harm
Nil Improper process in place Procedural 2 Major E Unlikely Medium 18
Emergency Response Plan (review for decommissioningdemolition activities)
IMS Incident Management System E ective 2 Major E Unlikely Medium 18
Alinta Energy and demolition contractor Closure Environmental Management Plans to be developed incorporating specific measures for activities with
potential to cause environmental harm Site incident reporting mechanism to
be used (IMS)
Alinta Energy Earlymid 2016
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
37 Environmental
Services
Environment al awareness decommissio ningdemoliti on
Awareness of aspects and general environmental duty
Non compliance
Nil Improper process in place Procedural 4 Minor E Unlikely Low 23
Site Environmental Awareness Induction (reviewed for
decommissioningdemolition activities) training and induction records (for
decommissioning demolition induction)
E ective 4 Minor E Unlikely Low 23
38 Environmental
Services
Environment al auditing (and forwarding summary to EPA) review requirement post operational phase
Various Non compliance
Nil Improper process in place Procedural 3 Moderate E Unlikely Low 21
Compliance calendar to include decommissioningdemolition
requirements (eg demolition approval conditions)
E ective 3 Moderate E Unlikely Low 21
39 Environmental
Services
Community complaints decommissio ningdemoliti on
Amenity community perception of organisation
Nuisance
Complaints local action media attention regulatory involvement
Community 3 Moderate C Likely High 11
Incident Management System Site investigation Directed response to complainant Complaints Register
Internal media advisor Reporting to management
E ective 3 Moderate E Unlikely Low 21
40 Environmental
Services
Annual community consultation post operation
Community perception of organisation
Non compliance
Nil Improper process in place Procedural 3 Moderate E Unlikely Low 21 Compliance calendar E ective 3 Moderate E Unlikely Low 21
41 Environmental
Services
Potable water use decommissio ningdemoliti on
Excessive potable water use
Resource waste
Water overuse financial cost increased risk of Gulf
contamination Resource 3 Moderate E Unlikely Low 21
Re-location of services prior to demolition
E ective 4 Minor E Unlikely Low 23
44
Post production
coal stockpile area
Runoff from coal stockpile area (post operation)
Water quality (runoff)
Water quality Soilgroundwater contamination clean up actions enforcement
actions Environmental 3 Moderate C Likely High 11
Collection no direct marine discharges water monitoring programme
E ective 4 Minor E Unlikely Low 23
45
Post production
coal stockpile area
Post operation coal stockpile area
Fire (spontaneous combustion)
Air quality Fire smokeparticulate
emissions public amp personnel exposure
Fire 3 Moderate E Unlikely Low 21
Develop strategy to reduce risks of spon com In post operational coal stockpile area Monitoring by Alinta
staff IMS
E ective 4 Minor E Unlikely Low 23
46
Post production
coal conveyors
Coal conveyors
Coal dust (conveyorstransfer s)
Air quality Personnel exposure limit
exceedence public nuisance complaints enforcement action
Environmental 3 Moderate C Likely High 11 wash down of built up dust E ective 5 Insignificant E Unlikely Low 25
47 Post
production coal bins
Coal bin storage
Coal dust Air quality Personnel exposure limit
exceedence public nuisance complaints enforcement action
Environmental 3 Moderate D Possible Medium 16 Wash down of built up dust ambient
monitoring maintenance records E ective 3 Moderate E Unlikely Low 21
48
Fireexplosion Air quality
Coal dust explosion Fire 2 Major D Possible High 12
Review risk assessments for decommissioningdemolition
Emergency Response Plan IMS E ective 3 Moderate E Unlikely Low 21
49 APS post production
Coal plant washdown
Marine discharge Water quality Contaminated water entering the Gulf damage to Gulf waters
enforcement action Environmental 4 Minor D Possible Low 20
Containment of washwater JSP 107 Bunker Washing water monitoring
programme E ective 4 Minor E Unlikely Low 23
50 APS post production
Decommissio ningdemoliti on
Oil spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate E Unlikely Low 21
Contaminated drain system S17 Oil Spill Procedure review and enhance
containment options Emergency Response Plan IMS Maintenance
records
E ective 4 Minor E Unlikely Low 23
51 APS post production
Decommissio ningdemoliti on
Fuel oil spillage (eg gun malfunction)
Water quality Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate D Possible Medium 16
Operating controls S17 Oil Spill procedure contaminated drains Emergency Response Plan IMS
E ective 3 Moderate E Unlikely Low 21
52 APS post
production
Decommissio ningdemoliti on
Seawater flow Ecological impact (eg fauna loss)
ReductionIncrease in number amp abundance of local marine
species Environmental 3 Moderate E Unlikely Low 21
Review options for cooling water channels (eg breach wall)
E ective 3 Moderate E Unlikely Low 21
53 APS post
production
Decommissio ningdemoliti on
Contamination of condenser cooling water
Ecological impact
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major E Unlikely Medium 18
Review options for condensers (post production) visual
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
54 APS post
production
Boiler water drainage
Treated water discharge
Water quality Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 4 Minor D Possible Low 20
drainage into Ash pit Operating controls ambient water monitoring
programme E ective 4 Minor E Unlikely Low 23
59 APS post
production
Fly ashbottom ash handling systems decommissio ningdemoliti on
Spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major E Unlikely
Flush ash systems to ash storage area water monitoring programme
E ective 4 Minor E Unlikely Low 23
60 APS post
production
Fly ash re-use storage and handling area
Spillage Water quality Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 4 Minor D Possible
Empty and washdown plant Discharge to containment area
E ective 4 Minor E Unlikely Low 23
61 APS post
production
Decommissio ningdemoliti on
Contamination of flow to ash storage pond (eg oil)
Water quality
Spill entering ash disposal system discharge to Gulf
waters enforcement action Environmental 3 Moderate D Possible
Contaminated drains oil containment oil handling ash pond controls Ash
storage dam inspections Emergency Response Plan IMS inspection
records
E ective 4 Minor E Unlikely Low 23
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
64 APS post
production
Oil removal Oil spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate C Likely High 11
Station Instructions S17 Oil Spill procedure S315 Storage Handling and Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil treatment plant Contaminated drain system Emergency Response Plan IMS water monitoring programme
E ective 4 Minor E Unlikely Low 23
65 APS post
production
Waste oil storage
Oil spillage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 3 Moderate C Likely High 11
Bunded storage S17 Oil Spill procedure S315 Storage Handling and Disposal of waste oil JSP051 Handling of full 200L oil drums amp oil
treatment plant Emergency Response Plan IMS water monitoring
programme
E ective 3 Moderate E Unlikely Low 21
66 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up actions enforcement
actions Environmental 2 Major E Unlikely Medium 18
Bunded storage Emergency Response Plan Spill response IMS
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
67 APS post
production
Fire Air quality
Fire personnel exposure Fire 3 Moderate E Unlikely Low 21
Storage controls (minimise ignition sources) Emergency Response Plan
Crisis Management Plan IMS E ective 3 Moderate E Unlikely Low 21
68 APS post
production
Discharges into the marine environment
Contaminated drains SPELS
Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major D Possible High 12
Chemical oil and fuel bunding oil separation maintenance of SPEL
tanks stormwater segregation review of routine to inspect SPEL tanks
Emergency Response Plan IMS water monitoring programme site
inspections SPEL cleanout routines
E ective 2 Major E Unlikely Medium 18
Contaminated water handling amp management procedure to be
referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
69 APS post
production
Oil -filled electrical equipment decommissio ning and removal
Leakage Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 2 Major E Unlikely Medium 18
Bunding S17 Oil Spill procedure JSP271 NPS Step-up Unit transformer amp line isolator
maintenance Emergency Response Plan Crisis Management Plan IMS monitoring of oil properties (eg PCB
content)
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
70 APS post
production
Soilgroundwater contamination
Soilgroundwater contamination clean up actions enforcement
actions Environmental 2 Major E Unlikely Medium 18
Containment of oil-filled equipment Emergency Response Plan
E ective 2 Major E Unlikely Medium 18
Oil handling amp spill management procedure to be referenced in Closure Environmental Management Plans and
included in contractors Emergency Plan and Emergency Response
Procedures Ensure ready availability of oil spill kits
on site and segregated waste storagetransfer area
Alinta Energy demolition contrator
Earlymid 2016
71 APS post
production
Fire explosion Air quality
Fire personnel exposure Fire 2 Major E Unlikely Medium 18 Permits containment E ective 2 Major E Unlikely Medium 18
Fire management procedure to be referenced in Closure Environmental Management Plans and included in
contractors Emergency Plan and Emergency Response Procedures
Alinta Energy demolition contrator
Earlymid 2016
79 APS post
production
Demolition general
Lead emissions (from lead-based paints)
Personnel exposure limit exceedence public nuisance
complaints enforcement action Environmental 3 Moderate E Unlikely Low 21
lead paint testing dust control processes Maintenance routines lead
in paint testing (as required) and recorded
E ective 4 Minor E Unlikely Low 23
80 APS post
production
Refrigeration air conditioning servicing decommissio ning (as required)
Release of ozone depleting substances
Depletion of Ozone layer
Environmental harm regulatory enforcement
Environmental 3 Moderate D Possible Medium 16
ARC licensed operators ozone-depleting gas reclaim for
decommissioned equipment Audits based on ARC requirements JSP372 Air Conditioner Maintenance Records
of ozone-depleting substances reclaim etc
E ective 3 Moderate E Unlikely Low 21
81 APS post
production
Sewerage system relocation of services (caused by decommissio ning and demolition)
Sewage overflow Water quality
Spill entering onsite drains system discharge to Gulf
waters enforcement action Environmental 4 Minor D Possible Low 20
Response to sewer chokes JSP028 Sewage Pit pump and control repairs
Emergency Response Plan IMS E ective 4 Minor E Unlikely Low 23
82 APS post
production
PPS Seawall collapserem oval
Loss of material into marine environment
Water Quality Contaminated material entering
the Gulf damage to Gulf waters enforcement action
Environmental 2 Major E Unlikely Medium 18 Site inspections E ective 2 Major E Unlikely Medium 18
83 APS post
production
Earthworks Project-specific erosion and sedimentation
Project-specific marine contamination Soilsedimentash entering onsite
drains system discharge to Gulf waters enforcement action
Environmental
Project-specific EMP (by contractor(s)) APS Change Request (Form C1-1) Change Management
Procedure HSRP 330 erosion controls Project Management Manual Project-
specific water quality
E ective
Risk Identification Inherent Risk Rating Residual Risk Rating Proposed Mitigation of Risk Exposure Improvement
Actions Target Future Risk Rating
ID Category Source Pathway Receptor Potential Consequences Exposure Type Consequence Likelihood Rating amp Priority
Current Approach or (Existing Controls)
Effectiveness Consequence Likelihood Rating amp Priority
Risk Reduction Treatment or Asset Improvement
Strategic or Approved Action Action Owner
UPlanned
lCompletion Consequence
tDate
i
Likelihood Rating amp Priority
96 Playford
Power Station demolition
Septic systems decommissio ning
Spillage Water quality HAZMAT scenario water soil amp groundwater contamination
clean up actions enforcement actions
Environmental 4 Minor D Possible Low 20 Arrange pump-outs E ective 4 Minor E Unlikely Low 23
97 Playford
Power Station demolition
Demolition stacks
Contaminated brick work
Incorrect disposal Improper waste disposal contamination of waste
destination enforcement action Waste 2 Major E Unlikely Medium 18
Containment of waste material Samplinganalysis to determine
disposal options Disposal records (eg WTCsWTFs)
E ective 3 Moderate E Unlikely Low 21
Appendix B
Augusta Power Stations
NPS Facility
Make Safe Manual
Revision Date Description Prepared by Reviewed by Approved by
0 29116 Initial draft
1 23216 First revision PMAPS FM
2 29216 Second revision ndash removed FM from activities
PMAPS FM
3 51016 Corrections
Distribution List
TBA
Decommissioning Manual ndash NPS
Index
1 Introduction 4
2 Closure Philosophy 4
3 Closure Strategy 4
4 Responsibilities 4
5 Titles 4
6 BoilerGenerator Unit 5
61 Turbine 5
611 Turbine Oil System 5
612 Condenser Condensate side 5
613 Condenser Seawater side 6
614 Turbine Valves 7
62 Generator 7
621 Hydrogen System 7
63 CW System 8
631 Chambers 8
632 CW pumps 9
633 CW Screens 9
634 CW Ducts 10
64 Feedwater System 10
641 LP Feedwater 10
642 Boiler feed Pumps 11
643 HP Feedwater 11
641 Feed Make-up 12
65 Boiler 12
651 Pressure parts 12
652 Furnace and Gas path 13
66 Draught Plant 14
67 Valves 15
68 Main Pipework 15
69 ACW System 16
691 ACW Seawater Side 16
692 ACW Fresh water Side 16
610 Coal System 17
6101 Train Unloading 17
6102 Bins and Bunkers 17
6103 Conveyors 18
6104 Coal Feeders 18
6105 Mills 19
611 Fuel oil system 19
6111 Fuel oil pumps 19
6112 Fuel Oil Storage 20
612 Ash System 21
6121 Sluice Pumps 21
6122 Hoppers 21
6123 Precips 22
6124 Deasher 22
Appendix B NPS Make Safe Manual Correcteddocx - 2 -
6125 Ash Pit 23
7 Electrical Systems 23
71 Control Systems 23
72 Instrumentation 24
73 DC System 24
731 220 V System 24
732 110 V System 25
733 24 V System 25
74 HV 26
741 High Voltage Disconnections 26
75 Switchboards 26
751 66 kv 26
76 Transformers 27
77 Diesel Generators 27
8 Station Auxilliaries 28
81 Aux blr 28
82 Compressed Air System 28
83 Water treatment plant 29
84 Fire protection System 29
85 Cranes and Lifts 30
86 TW and Drains system 31
87 Stack 31
9 Services 32
91 Workshops 32
92 Heavy machine and Mobile Plant 33
93 Admin 34
94 Document information and management 34
95 Security 35
10 Infrastructure of Interest 35
101 CW System 36
102 Workshops 36
103 Water storage tanks 37
104 PPS Diesel Fire pumps 37
11 Appendix 37
111 Legal and other Requirements 37
1111 Legislation and Strategies 37
1112 Alinta Policies 38
112 References 39
113 Project Plan 40
114 NPS Administration 40
1141 NPS Isolations 40
1142 NPS Closure Audit 40
115 NPS Residual Risks 41
Appendix B NPS Make Safe Manual Correcteddocx - 3 -
1 Introduction
The Northern Power Station has been operating in a flexible generating profile and has been able to respond to Market opportunities over the past few years Since the application of Scenario 1 to NPS generation profiles and significant increase in Wind and Solar generation in the SA market it has become increasingly difficult to maintain a commercial return on APS Electricity Production This has resulted in a decision by the Alinta Board to close the Power Station in Q2 of 2016
2 Closure Philosophy
The closures of the NPS site are outlined in the Lease Agreement and require Alinta to rehabilitate the APS site to its pre-developed condition The Closure Plan seeks to facilitate the removal of the Power Station infrastructure to manage all of the Asset removal with no impact on the surrounding environsrsquo meet all condition of the Lease Agreement and Legislative requirements
Alinta acknowledges that the demolition and site rehabilitation works are deemed to be lsquoHigh Riskrsquo work activities and will ensure appropriate management of this work in accordance with WHS Act 2012 and Regulations
Alinta will ensure the key principle of lsquoZero Harmrsquo will be embedded in all activities associated with the Closure Disposal and Remediation of the NPS site in accordance with the Lease Agreement
3 Closure Strategy
The focus of this manual is to outline activities to be carried out to make the plant safe for disposaldemolition by third parties
Key objectives are to remove all foreseeable hazards to the environment and salvagedemolition personnel during the remediation programme
4 Responsibilities
The `Plant managerrsquo will seek approval of Closure plans and allocate resources to implement the effective management and Make Safe activities of the NPS site prior to handover to the Facilities Manager and contractors for demolitionrehabilitation
The lsquoFacilities Managerrsquo and the Project team will communicate the sequence and timing of activities in accordance with this plan to internal stakeholders and external parties and contractors as required The FM will also lead a small team of experts to oversee the demolition and remediation activities
5 Titles
Facilities Manager - FM Operations amp Maintenance Manager ndash OMM Production Manager Augusta - PMA Scientific Services an Chemical Superintendent - SSCS
Appendix B NPS Make Safe Manual Correcteddocx - 4 -
6 BoilerGenerator Unit
61 Turbine
611 Turbine Oil System
Asset Management Strategy
Remove hazards present to the environment and personnel from the Lube oil systems during decommissioning
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommission operation
Item Plant Description Proposed Actions Responsibility
1 Lube Oil System Drain all lube oil and seal oil to main tank OMM
2 Lube Oil Tank
Monitor lube oil tank for potential leaks until handover to FM and contactors for final decommissioing OMM
3 Oil pumps Isolate electrical supplies to Oil Pumps OMM
4 Seal oil tank Drain the Seal Oil system OMM
5 Seal oil pumps Isolate electrical supplies to Seal Oil Pumps OMM
612 Condenser Condensate side
Asset Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 5 -
Eliminate the possibility of toxic gases andor pressure build up in the system during decommissioning
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Item Plant Description Proposed Actions Responsibility
Condenser and CEPrsquos
Open all drain vvrsquos and open up condenser doors OMMOMM
CEP MotorPump Drain motor and Pump oil OMM
613 Condenser Seawater side
Asset Management Strategy Minimise build-up of toxic gases from decomposed marine growth in the Condenser
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Item Plant Description Proposed Actions Responsibility
1 Condenser Seawater side
Open all condenser drain valves once the condenser is isolated from the CW chamber OMM
Gas test for toxic gases OMM
Appendix B NPS Make Safe Manual Correcteddocx - 6 -
614 Turbine Valves
Asset Management Strategy Minimise hazards to the environment and personnel in the Valve Control oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
ITEM Plant Description Proposed Actions Responsibility
1 Major turbine vvrsquos Isolate electrical supplies to Valves OMM
11 Drain control oil actuators and pipework OMM
2 HP and LP By-pass vvrsquos
Decommission and drain Control stations and accumulators OMM
62 Generator
521 Generator Rotor
Asset Management Strategy Removing hazards to the environment and personnel from the Generators
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Item Plant Description Proposed Actions Responsibility
Generator Casing
Isolate hydrogen from generator case and purge casing OMM
621 Hydrogen System
Asset Management Strategy Shutdown Hydrogen system to prevent any risk of hydrogen fuelled fire or explosion
Appendix B NPS Make Safe Manual Correcteddocx - 7 -
Controls The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 Hydrogen System
Shut down isolate and purge Hydrogen system OMMSSCS
2 Hydrogen System
Remove all Hydrogen supplies from site once second Unit is OOS OMM
63 CW System
631 Chambers
Asset Management Strategy Isolate the inletoutlet channel water from the Condenser basements
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
CW pumps
Fit blanks to the CW pump discharge pipe to isolate the chamber from the Condenser basement
OMM
CW pump Drain Oil from pump OMM
Taprogge recirc pumps Drain oil from pumps OMM
Dosing pumps (hypo chlorFE chlor Drain oil from pumps OMM
Chlorine Plant Shut down and flush chemicals from lines SSCS
Appendix B NPS Make Safe Manual Correcteddocx - 8 -
Chlorine plant pipework Drain and dry store SSCS
Electrolysers Drain and dry store SSCS
Chlorine storage tank Drain and dry store SSCS
632 CW pumps
Asset Management Strategy Remove environmental contaminants from CW pumps
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
5321
CW pumps Drain oil from CW pp bearings OMM
CW Pump Motors Isolate motor heaters OMM
Empty chamber remove CW pumps and blank off CW pump discharge pipe OMM
633 CW Screens
Asset Management Strategy Remove environmental contaminants from CW screens
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Appendix B NPS Make Safe Manual Correcteddocx - 9 -
Plant Description Proposed Actions Responsibility
5331
CW Screens Drain oil from CW screen gearboxes not required by third party OMM
634 CW Ducts
Asset Management Strategy Minimise build-up of toxic gases from decomposed marine growth in the Condenser
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommission operation
Plant Description Proposed Actions Responsibility
5331
CW Ducts Isolate from CW chamber and pump dry OMM
64 Feedwater System
641 LP Feedwater
Asset Management Strategy Eliminate the possibility of gases andor pressure build-up in the system
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
LP feedheaters Open drains and doors OMM
GS Condenser Open drains and doors OMM
Appendix B NPS Make Safe Manual Correcteddocx - 10 -
LP Ejector Open drains and doors OMM
Deaerator and DAFT Open drains and doors OMM
DA off load circ pump Drain oil from pump OMM
Ammonia dosing pump Drain oil from pump OMM
642 Boiler feed Pumps
Asset Management Strategy Remove any hazards to the environment or personnel in the Boiler Feed pumps
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
1
Boiler feed pp amp DAFT header Isolate and drain system OMM
Drain oil from BFPrsquos and GTDrsquos OMM
643 HP Feedwater
Asset Management Strategy Minimise possibility of gases andor pressure build up in the system
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Appendix B NPS Make Safe Manual Correcteddocx - 11 -
Plant Description Proposed Actions Responsibility
HP6 amp 7 Drain HP Heater shell and store dry OMM
Drain Feedwater side and store dry OMM
641 Feed Make-up
Asset Management Strategy
Drain systems to minimise internal corrosion
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 Feedwater make up heater Drain and store dry OMM
2 Hot Condesate Storage tank Drain and store dry OMM
3 RFW Tanks Drain and store dry OMM
65 Boiler
651 Pressure parts
Asset Management Strategy Minimise possibility of gases andor pressure build up in the system
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Appendix B NPS Make Safe Manual Correcteddocx - 12 -
Plant Description Proposed Actions Responsibility
Boiler Tubes amp Superheaters
Boilers to be removed from service amp drained hot OMM
Open up all drains and vents OMM
Valves - general Drain oil from actuators OMM
Valves - Blr safety vvrsquos Relieve spring tension OMM
Blowdown vessels Ensure drain vvs are open OMM
652 Furnace and Gas path
Asset Management Strategy
To ensure furnace is clear of ashslag deposits to minimise the potential for corrosion and environmental contamination during the Care period
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1
Furnace super htr area and penthouse
Gas path to be washed including penthouse All dead spaces including inside nose and either side of boiler throat all ash hoppers to be cleaned amp left dry OMM
2 Water walls Washed out after shut down and dry store OMM
3 Economiser Washed out after shut down and dry store OMM
Appendix B NPS Make Safe Manual Correcteddocx - 13 -
66 Draught Plant
Asset Management Strategy Minimise any residual hazards remaining in the Draught Plant
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Decommissioning operation
Plant Description Proposed Actions Responsibility
Air heaters WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
ID fans WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
PA fans WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
SA fan WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
GR fans WashedVaccuumed out after shut down and dry store OMM
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
Appendix B NPS Make Safe Manual Correcteddocx - 14 -
ID PA SA GR Motors Disconnect motor heater power supplies OMM
DuctsDampers WashedVaccuumed out OMM
Drain oil from damperactuator gearboxes OMM
67 Valves
Asset Management Strategy Minimise any residual hazards or kinetic energy remaining in the valves on site
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Selected safety valves
Relieve all spring tensions based on individual risk assesments OMM
68 Main Pipework
Asset Management Strategy Minimise any residual hazards remaining in the Pipework
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Main pipework from Boiler to Turbine Open all vents and drains OMM
Appendix B NPS Make Safe Manual Correcteddocx - 15 -
69 ACW System
691 ACW Seawater Side
Asset Management Strategy Minimise build-up of toxic gases from decomposing marine growth in the ACW pipework and heat exchangers and remove environmental hazards
Controls The following controls have been identified to eliminate the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Heat exchangers Isolate and drain heaters of seawater OMM
ACW pumps Drain oil from the bearings OMM
ACW system Open all drains and vents OMM
Test for toxic gases OMMSSCS
692 ACW Fresh water Side
Asset Management Strategy Remove environmental hazards from the ACW system
Controls The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Coolers Drain all ACW coolers OMM
Pumps Drain oil from pumps OMM
Appendix B NPS Make Safe Manual Correcteddocx - 16 -
610 Coal System
6101 Train Unloading
Asset Management Strategy To minimise environmental hazards
Controls
The following controls have been identified to minimise the hazards to the environment
Plant Description Proposed Actions Responsibility
Train unloader WashVaccuum all hoppers feeders and conveyor systems OMM
Unloader walls
Monitor water level in Unloader pitValve in wall to be opened periodically to relieve water pressure on walls Note Needs to be condition included in transfer agreement OMM
Unloader sump
Unloader sump pump will need to be maintained Note Once supply to Unloader is decommissioned sump pump will not operate OMM
6102 Bins and Bunkers
Asset Management Strategy To minimise environmental hazards
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Bins Emptied and washed out OMM
Ploughs Park ploughs in bypass position and wash down OMM
Appendix B NPS Make Safe Manual Correcteddocx - 17 -
Drain gearbox oils OMM
Trippers Wash down trippers OMM
Drain gearbox oils OMM
Bunkers Empty and Wash out bunkers OMM
6103 Conveyors
Asset Management Strategy Remove environmental kinetic energy and fire hazards from the coal system
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Conveyors Shutdown Coal conveyor systems and wash down OMM
Conveyors Drain oil from gearboxes OMM
Release belt tensioners and lower weights to the ground and secure OMM
Coal line Fire System
Maintain fire detection and deluge systems until Make safe is complete in accordance with OEM OMM
Coal line Fire System
Maintain fire detection and deluge systems in accordance with OEM OMM
6104 Coal Feeders
Asset Management Strategy To minimise environmental hazards
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 18 -
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Mill feeders Emptied out on shutdown and washed out for dry store OMM
Mill feeders Drain gearbox oils OMM
6105 Mills
Asset Management Strategy Remove environmental contaminants and kinetic energy from the coal Mills
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Mills Empty out Mills and wash out for dry store OMM
Mills
Monitor lube oil system for potential leaks until handover to FM and contactors for final decommissioing OMM
Release mill roller spring tension OMM
611 Fuel oil system
6111 Fuel oil pumps
Asset Management Strategy Remove environmental contaminants from Fuel oil system
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Appendix B NPS Make Safe Manual Correcteddocx - 19 -
Plant Description Proposed Actions Responsibility
Oil guns
Remove guns and store in Mills Workshop with supply lines capped and nozzles plugged OMM
FO heaters Drain fuel oil heaters OMM
FO pipework Drain fuel oil pipework OMM
FO transfer pps Drain bearing oil OMM
6112 Fuel Oil Storage
Asset Management Strategy Remove environmental contaminants from Fuel oil system
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
FO storage Run stocks of FO to minimum level PMA
Monitor FO storage tanks and distribution system for potential leaks prior to handover to FM for contactor final decommissioning OMM
FO Service Tank Run stocks of FO to minimum level PMA
Clean storage tanks of residual oil to eliminate potential leakrsquos to the environment during storage and de-commissioning Inspect internally prior to removal FM
Appendix B NPS Make Safe Manual Correcteddocx - 20 -
612 Ash System
6121 Sluice Pumps
Asset Management Strategy
Drain systems to minimise internal corrosion and marine growth
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 HP amp LP Sluice pump pipework Drain all pipework and dry store OMM
2 LP Sluice Pumps Isolate pumps OMM
3 HP Sluice pumps Drain pump bodies and dry store OMM
6122 Hoppers
Asset Management Strategy
Reduce the risk of ash hang ups and internal hopper corrosion during an Care period
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Item Plant Description Proposed Actions Responsibility
1 Third pass Wash out hoppers after shutdown and dry store Remove E vvrsquos OMM
2 Primary Air Heater Hoppers
Wash out hoppers after shutdown and dry store Remove E vvrsquos OMM
3 Secondary Air Heater Hoppers
Wash out hoppers after shutdown and dry store Remove e vvrsquos OMM
Appendix B NPS Make Safe Manual Correcteddocx - 21 -
4 Precip Hoppers
Remove E Valves Wash down Precip and Hoppers dry out with hopper heater for 24 hours and isolate heaters and dry store OMM
5 Ash Transfer Plant
Empty and wash out vessels dry store Isolate all Electrical and Air Supplies to Ash Transfer plant OMM
6 Ash Silo Empty and wash out vessels dry store Isolate all electrical supplies to Silo OMM
6123 Precips
Asset Management Strategy Remove environmental contaminants from Precipitators
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Internals Full wash of Precip internals Open doors and allow to dry OMM
Rappers Drain oil from rapper gearboxes OMM
6124 Deasher
Asset Management Strategy Remove environmental contaminants from Deashers
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
De-asher
Remove the de-asher to the maintenance position and wash out for dry store Barricade bottom of boiler to restrict access while de-asher removed OMM
Appendix B NPS Make Safe Manual Correcteddocx - 22 -
7
Crusher
Wash out ash crusher
OMM
De-asher Drain oil from hydraulic units OMM
Crusher Drain oil from crusher gearbox OMM
6125 Ash Pit
Asset Management Strategy
Maintain storm water control for the duration of decommissioning
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Ash pit
Install a suitably sized submersible pump connected to one of the Ash Pond discharge pipes to cater for rain events prior to handover to FM and contractors for final decommissioning
OMM
Electrical Systems
71 Control Systems
Asset Management Strategy Minimise the risk of residual power sources associated with the control systems
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Appendix B NPS Make Safe Manual Correcteddocx - 23 -
Plant Description Proposed Actions Responsibility
FCS Battery systems Remove low voltage DC battery packs OMM
Fire Safety System Remove DC inverter OMM
72 Instrumentation
Asset Management Strategy Eliminate the risk of electric shock from residual power sources
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Instruments o2 press temp hydrogen analysers cameras oil flows water quality level
Remove tag with KKS amp Physical location and store in Instrument Workshop
OMM
AC Supply to FCS stations
Isolate AC supply to FCS stations
OMM
Inverter Supply Isolate and decommission Inverter supplies to Control System
OMM
73 DC System
731 220 V System
Asset Management Strategy Minimise the risk of DC Arc flash and LeadAcid hazards
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 24 -
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
220V Batt Charger and bank
Decommission battery charger and remove batteries Wash down battery stands and floors to remove residual sulphuric hazards OMM
732 110 V System
Asset Management Strategy Minimise the risk of DC Arc flash andndash LeadAcid hazards
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
110V Batt Charger and bank
Monitor 220v amp 110v battery systems until handover to FM and contactors for final decommissioning To be included in contractor agreement (Decommission battery charger and remove batteries once 275kV lines are decommissioned (line protection) Wash down battery stands and floors to remove residual sulphuric hazards) OMM
733 24 V System
Asset Management Strategy Minimise the risk of DC Arc flash andndash LeadAcid hazards
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
24V Batt charger and bank
Decommission battery charger and remove batteries Wash down battery stands and floors to
OMM
Appendix B NPS Make Safe Manual Correcteddocx - 25 -
I I
remove residual sulphuric hazards
74 HV
741 High Voltage Disconnections
Asset Management Strategy Apply a perimeter isolation to the 275132kV switchyards to Eliminate risk of Electric Shock by disconnecting all HV supplies at major terminal points in switchyards Eliminate the possibility of a transformer oil spill to the surrounding environment
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
275kV supply
Maintain protection systems for 275kV system until handover to FM to arrange disconnection agreement with Electrenet OMM
132kV Disconnect from House transformer OMM
75 Switchboards
751 66 kv
Asset Management Strategy To remove any kinetic energy stored in the 66kV switchgear
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Appendix B NPS Make Safe Manual Correcteddocx - 26 -
66 Breakers Rack out breakers and discharge spring tension OMM
76 Transformers
Asset Management Strategy
Eliminate the possibility of a transformer oil spill to the surrounding environment
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
275kV Transformer
Isolate 275kV at connection point at switchyard
OMM
Monitor all transformers for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Drain all transformer oil and box up transformer case )
OMM
132kV Transformer (House)
Monitor all transformers for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Drain all transformer oil and box up transformer case )
OMM
77 Diesel Generators
Asset Management Strategy Remove the Diesel Generators from service
Controls
The following Controls have been identified to prevent the deterioration of the Asset during the Care period
Appendix B NPS Make Safe Manual Correcteddocx - 27 -
8
Plant Description Proposed Actions Responsibility
Diesel Generators
Monitor Diesel Gensets for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Remove Gensets from service) OMM
Station Auxilliaries
81 Aux blr
Asset Management Strategy Remove any remaining residual contaminants
Controls
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Aux Boiler Fuel Oil Tank
Monitor Aux Boiler FO system for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Drain Aux Boiler FO tank) OMM
82 Compressed Air System
Asset Management Strategy Shut down assets and depressurise the system and remove environmental contaminants
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 28 -
The following controls have been identified to minimise the hazards to the environment and personnel during decommissioning
Plant Description Proposed Actions Responsibility
Air compressors
Monitor Compressors for potential leaks until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Decommission compressors and separators) FM
83 Water treatment plant
Asset Management Strategy Remove any remaining residual contaminants Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Reverse Osmosis Plant
Decommission and store in accordance with OEM recommendation
OMMSSCS
Water treatment Plant
Drain all vessels remove all resins chemical and dispose of Dry store all tanks and vessels
Remove all Resin and put to land fill OMMSSCS
84 Fire protection System
Asset Management Strategy
Decommission fire protection system and remove environmental contaminants
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Appendix B NPS Make Safe Manual Correcteddocx - 29 -
I I
Plant Description Proposed Actions Responsibility
Fire feedwater Isolate town water to fire pumps and drain all mainfolds OMM
Fire Deluge System
Drain fire system at fire pump discharge and at each deluge system OMM
Diesel Fire Pump Decommission drain fuel engine oil and coolant OMM
Electric fire pumps Isolate and decommission OMM
Fire detection system
Isolate and decommission fire detection system including the removal of DCP lead acid batteries OMM
Fire Halon systems
Decommission and remove Halon cyclinders from control room under floor system OMM
Vesda detection system Decommission and remove backup batteries OMM
Portable fire extinguishers
Monitormaintain all fire extinguishers until handover to FM and contractors for final decommissioning
To be included in contractor agreement (Remove all fire extinguishers for site and dispose of) OMM
85 Cranes and Lifts
Asset Management Strategy Decommission and de-register lifts and cranes in preparation for demolition
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Appendix B NPS Make Safe Manual Correcteddocx - 30 -
All Lifts Maintain operation of Turbine Hall and Boiler lifts until handover to FM and contactors for decommissioning
To be included in contractor agreement All lifts to be decommissioned OMM
NPS Cranes Monitor all cranes and hoists for potential oil leaks prior to handover to FM and contractors for decommissioning To be included in contractor agreement (Drain oil from all cranes and hoist gearboxes and decommision) OMM
86 TW and Drains system
Asset Management Strategy
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Contaminated Drains Pit and associated pumps
Maintain in normal operation This ensures any run off from rain event do not carry any pollutants into the surrounding environment without being removed in the contaminated drains pits until handover to FM and contractors for decommissioning Note Once supply to CW switch room is decommissioned the oil skimmer in the sump will no longer operate To be included in contractor agreement (Decommission the contaminated drains system and settling pond) OMM
Condenser Sumps
Installation of temporary submersibles needed to maintain sumps dry if required Note Once Turbine 415V boards are decommissioned sump pumps will no longer operate OMM
87 Stack
Asset Management Strategy
Ensure we meet aviation standards of Stack lighting after Closure
Controls
Appendix B NPS Make Safe Manual Correcteddocx - 31 -
9
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Stack
Provide alternative lighting of the stack to comply with CASA minimum standard for Aviation requirements OMM
Services
91 Workshops
Asset Management Strategy Minimise any hazards that may impact on demolition crews and chemicalgas hazards to surrounding environs
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Tubemakers Storage shed
Inventory and remove all plant tools and equipment for disposal
Salvage all materials held in store
Review and approve contractor demolition plan including sewage system OMM
Appendix B NPS Make Safe Manual Correcteddocx - 32 -
decommissioning and site rehabilitation
Garage Workshop
Decommission all Electrical supplies town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
OMM
Mitsubishi Spares Shed
Decommission all Electrical supplies town water systems to store
Remove all stock and spares for disposal
OMM
Cylinder Store Compound
Remove all stock of gas cylinders and return to suppliers
OMM
Coal Line and Electrical Workshop
Maintain Electrical supplies town water and black water systems to workshop for third party transfer
Inventory and remove all plant tools and equipment for disposal
OMM
Mills Workshop
Decommission all Electrical supplies town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
OMM
Plant Workshop
Decommission all Electrical supplies town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
OMM
Plant Tools and equipment disposal
Commission an auction house to promote and conduct a plant tools and equipment disposal on site on behalf of Alinta OMM
Residual plant tools and equipment
Non disposlable item to be scrapped and removed from site by merchant OMM
92 Heavy machine and Mobile Plant
Appendix B NPS Make Safe Manual Correcteddocx - 33 -
Asset Management Strategy Minimise any hazards that may impact on demolition crews
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Heavy Plant
Inventory heavy plant items and place on consignment with Heavy Machinery reseller This to be done in parallel with Dozing operations on the residual coal stocks held on APS stockpile OMM
Mobile Plant Inventory mobile plant items and place on consignment with Heavy Machinery reseller OMM
Light Vehicle
Develop a light vehicle return strategy as vehicle leases expire sufficient vehicle to conduct Care to Closure activities return all vehicles at the commencement of demolition phase OMM
93 Admin
Asset Management Strategy Minimise any hazards that may impact on demolition crews
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
PA system throughout the workshop offices station and general site
Required for site communications emergency notices and evacuations by skeleton staff
OMM
94 Document information and management
Asset Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 34 -
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Documents Determine what data is required to be stored OMM
Determine where the data will be stored OMM
Historical interest data
Determine who would be interested in taking this PMAPS
Pressure Vessel registration
Advise Worksafe SA when plant is decommissioned OMM
95 Security
Asset Management Strategy To continue site security until such time as Third parties take control
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Plant Description Proposed Actions Responsibility
Security Maintain Security contract OMM
10 Infrastructure of Interest
The following infrastructure and plant has been identified as possibly of Interest to Third Party users after Closure
Appendix B NPS Make Safe Manual Correcteddocx - 35 -
101 CW System
Asset Management Strategy To identify the system requirements of the CW plant for continued use by third party
Assumptions Third party will own operate and maintain CW infrastructure including power supplies and EPA
license requirements
Plant Description Consequential Plant Responsibility
1
Sluice ACW and Sundrop pumps
Power supply ndash 66kV415v transformer will be decommissioned as part of the demolition process Alternative power supply will need to be established to continue operation
OMMThird Party
2
Contaminated drains system
To ensure any contaminent spillage is prevented from entering the surrounding environs The transfer pump pit will remain connected to the 11kV ring feed however the transfer pumps at the Contaminated drains settling pond is currently fed from the town water switch room which will be decommissioned Alternative power supply will need to be established at the settling pond for this system to remain operational
OMMThird Party
102 Workshops
Asset Management Strategy To identify the system requirements of the Workshops at NPS for continued use by third
party
Assumptions Third party will own operate and maintain Workshop buildings including power supplies Town
water and Black water system
Plant Description Consequential Plant Responsibility
Workshops
Town water reticulation will need to be dispersed between third parties with separation of metering points Black water system backbone will need to be retained Existing Power supplies may be disconnected during demolition 11kV 415v pad mount will
OMMThird Party
Appendix B NPS Make Safe Manual Correcteddocx - 36 -
need to be installed at the WTP to supply the Mech workshop Existing 11kV 415v pad mount power supply to Electrical workshop should remain if required
103 Water storage tanks
Asset Management Strategy To identify the functionality requirements of the Town Water storage tanks for continued use
by third party
Assumptions Third party will own operate and maintain Town Water storage tanks including water connection
and agreement with SA Water
Plant Description Consequential Plant Responsibility
Town water storage tanks
Town water supply from SA Water Alternative power supply for TW switchroom and associated pumps will be required to keep this plant operational
OMMThird Party
104 PPS Diesel Fire pumps
Asset Management Strategy To identify the functionality requirements of the PPS Fire diesel pumps for continued use by
third party
Assumptions Third party will own operate and maintain PPS Fire Diesel pumps including power supplies and
EPA license requirements
Plant Description Consequential Plant Responsibility
PPS Fire Diesel pumps
Diesel pumps are a standalone system and can be plumbed to suit delivery where required
OMMThird Party
11 Appendix
111 Legal and other Requirements
1111 Legislation and Strategies
Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 37 -
Comply with all Legislation and Lease agreements during the Closureremediation process
Controls
Item Proposed Actions Responsibility
1 NorthernPlayford Generating Plant Lease PMAPS
2 NorthernPlayford Land Lease PMAPS
3 Environmental Compliance Agreement PMAPS
4 SA Generation Licence PMAPS
5 EPA Licences PMAPS
6 AEMO Certification PMAPS
7 Pressure Vessel Registrations PMAPS
8 Crane Registrations PMAPS
9 WHS Act amp Regulations PMAPS
10 Code of Practice ndash Demolition Work PMAPS
1112 Alinta Policies
Management Strategy
Appendix B NPS Make Safe Manual Correcteddocx - 38 -
Controls
Item Description Proposed Actions Responsibility
1
Compliance Guideline HSSE-019 Demolition and Decommissioning Adhere to Alinta Policy PMAPS
112 References
Item Document Responsibility
1 Care to Closure Risk Assessment PMAPS
2 NPS Care to Closure Plan PMAPS
3 PPS Hibernation Manual PMAPS
4 PPS Closure Manual PMAPS
5 NPS Lube schedules PMAPS
6 Inspection and Audit sheet PMAPS
7 APS Sewerage and Septic systems (Sharepoint) PMAPS
8 APS Contaminated Drains system (Sharepoint) PMAPS
9 APS Transmission line layout (Sharepoint) PMAPS
Appendix B NPS Make Safe Manual Correcteddocx - 39 -
113 Project Plan
114 NPS Administration
1141 NPS Isolations
Asset Management Strategy
To wind back plant and system isolations to Perimeter isolationsdisconnections
Controls
The following controls have been identified to minimise the hazards to the environment and demolitions crews during remediation
Item Proposed Actions Responsibility
Resource plan Track actions against plan OMM
1142 NPS Closure Audit
Asset Management Strategy
To provide an Auditable record of controls put in place to render the site as safe as reasonably practical for salvagedemolition
Controls
The following Controls have been identified to
Item Proposed Actions Responsibility
1 Raise work orders for each control action OMM
Appendix B NPS Make Safe Manual Correcteddocx - 40 -
2 Complete Inspection amp Audit sheets as each system is made safe OMM
115 NPS Residual Risks
Management Strategy
To highlight to the salvagedemolition third parties any Residual risks remaining that are beyond the Alinta Energy Closure workscope
Item Residual Risks Responsibility
Stack Aviation lighting requirements will need to be met until the stack is demolished PMAPS
Boiler structure Aviation lighting requirements will need to be met until the boiler is demolished PMAPS
Boiler burners Asbestos sheet gaskets exists between each burner and the boiler front (48 in total) PMAPS
66 Breakers Contain asbestos backing boards PMAPS
Air Heaters Bearing oil baths will contain oil PMAPS
Mill Spring pits The Gerb springs supporting the Mills contain a thick composite oil in the damper packs PMAPS
Underground Fuel tanks
There is an underground petrol tank at the SE corner of the NPS Store PMAPS
Transformers Some of the 415V transformers contain Freon gas PMAPS
Fire deluge system
There are some mercury switches used in the Fire deluge systems PMAPS
Appendix B NPS Make Safe Manual Correcteddocx - 41 -
Generator circuit breakers The generator CBrsquos contain SF6 gas PMAPS
Appendix B NPS Make Safe Manual Correcteddocx - 42 -
Appendix C
alintaSFE everyone every day every job Zero Harm
Augusta Power Station
Playford Facility
Closure Manual
Revision Date Description Prepared by Reviewed by Approved by
A 1915 First Draft
B 51016 Corrections
C
Distribution List
Augusta Management Team
Closure Manual ndash PPS
Index
1 Introduction 3
2 Closure Philosophy 3
3 Closure Strategy 3
4 Responsibilities 3
5 PPS Closure 4
51 Turbine Generator 4
511 Turbine 4
512 Condenser Sea Side 5
513 Condenser Condensate Side 5
514 Turbine Valves 6
515 Generator 6
516 Turbine Auxiliaries 7
52 Boiler 8
521 Boiler Systems 8
522 Feedwater Systems 9
523 Boiler Feed Pumps (BFP) 9
524 Draught Plant 10
53 Station Auxiliaries 11
531 Electrical 11
532 Coal Systems 17
533 Fuel Oil 19
534 Ash Systems 20
535 Compressed Air 22
536 CW Systems 22
537 Water Treatment Plant 24
538 Town Water and Drains 25
539 Fire Protection system 25
5310 Workshops and Offices 26
6 Appendix 27
61 Legal and other Requirements 28
611 Legislation and Licences 28
612 Alinta Policies 29
613 References 29
62 Project Plan 29
63 PPS Administration 29
631 PPS Registered Plant 29
632 PPS Isolations 30
633 Closure Audit 30
7 PPS Residual Risks 31
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 2 -
1 Introduction
The Playford Power Station began operation in the early 1960rsquos as a Base load Station through to the late 1980rsquos It then began operating as reserve generation for peak demand periods through to 2012 PPS was then placed into Hibernation on a 90 day recall With the continuing market supply from Wind and Solar generation it was announced in 2015 that Playford along with NPS is no longer required and will be Shutdown and Decommissioned and the site Remediated in line with the Generating Lease Agreement
2 Closure Philosophy
The Closure plan seeks to facilitate the removal of the Power Station infrastructure to manage all of the Asset removal with no impact on the surrounding environsrsquo meet all condition of the Lease Agreement and Legislative requirements
Alinta acknowledges that the demolition and site rehabilitation works are deemed to be lsquoHigh Riskrsquo work activities and will ensure appropriate management of this work in accordance with WHS Act 2012 and Regulations
Alinta will ensure the key principle of lsquoZero Harmrsquo will be embedded in all activities associated with the Closure Disposal and Remediation of the APS site in accordance with the Lease Agreement
3 Closure Strategy
The Closure Strategy will be to remove all foreseeable hazards remaining at PPS to make the plant Safe to the environment and SalvageDemolition personnel during the remediation programme by completing the activities outlined in this document
4 Responsibilities
The lsquoFacilities Managerrsquo will seek approval of Closure plans and allocate resources to implement the effective management and closure of the PPS site to meet the lease agreement Communicate the sequence and timing of activities in accordance with this plan to internal stakeholders and external parties as required
The lsquoFacilities Remediation Project Managerrsquo will consult and liaise with the Demolition and Remediation contractors on site and will be supported by a number of Technical Specialists and Contract Administrators
The `Facilities Safety and Environment Managerrsquo will develop the framework for `High Riskrsquo demolition works and ensure subcontractors comply with all legislative requirements associated with the remediation works
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 3 -
5 PPS Closure
51 Turbine Generator
511 Turbine
5111 Lube Oil Systems
Asset Management Strategy Minimise residual hazards remaining in the Lube oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
TG Lube Oil systems
Plant Description Proposed Actions Responsibility
Main Oil tank InspectRemove any residual oil from the main oil tanks
Lube oil pipework
InspectRemove any residual oil from the lube oil pipework system
Oil centrifuges Drain gearbox oil and empty oil from bowl
5112 Seal Oil Systems
Asset Management Strategy
Minimise residual hazards remaining in the Seal oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Seal Oil system
Plant Description Proposed Actions Responsibility
Seal Oil tank InspectRemove any residual oil from the Seal oil tanks
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 4 -
Seal oil pipework
InspectRemove any residual oil from the Seal oil
pipework system
Seal oil vac pprsquos Drain oil from pprsquos
512 Condenser Sea Side Asset Management Strategy
Minimise build up of toxic gases from decomposed marine growth in the Condenser
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Condenser water boxes Open doors and drains on condensers and air dry
Check for gases in water boxes prior to demolition
513 Condenser Condensate Side Asset Management Strategy
Minimise the risk of build up of gases in this space
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 5 -
Plant Description Proposed Actions Responsibility
EE Condensers Open up condensate drains
Stal condensers Open up drains
Condensate gases Check for gases in condensate space prior to demolition
514 Turbine Valves
Asset Management Strategy
Minimise residual hazards remaining in the Valve Control oil systems
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Turbine Stop valves Drain all control oil
Turbine Throttle valves Drain all control oil
515 Generator Asset Management Strategy
Prepare Generators for demolition
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 6 -
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Generator Remove all access doors and open to atmosphere
Check for gases in generator space prior to demolition
Exciter breaker Release kinetic energy in exciter breaker
516 Turbine Auxiliaries Asset Management Strategy
Eliminate the possibility of gases andor pressure build up in the system during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
EE DC Htr and DC htr ext pps Open all drains and vents
Drain oil from pp bearings
Shunt DA pprsquos Drain oil from bearings
EE LP1 htr Open all drains and vents
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 7 -
Stal Gland leakage condensers DC Htr and DC htr ext pps Open all drains and vents
Stal Gland steam cooler Open all drains and vents
Stal Ejector condensers Open all drains and vents
Stal Gland leakage condensers and clean drains tank Open all drains and vents
Stal Auxillary steam vessels Open all drains and vents
All Vessels Check for gases in all Auxiliary vessel spaces prior to demolition
52 Boiler
521 Boiler Systems
5211 Pressure Parts
Asset Management Strategy
Minimise possibility of gases andor pressure build up in the system during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Boiler Tubes and Drums
Open top and bottom drum doors and open all vents and drains
Check for gases in all spaces prior to demolition
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 8 -
Sootblowers Drain sootblower gearbox oil
522 Feedwater Systems
5221 HP Heaters
Asset Management Strategy
Minimise possibility of gases andor pressure build up in the system during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
HP heaters Remove loop pipes from heaters
Open body drains and vents
Check for gases in hp heater space prior to demolition
Boiler dosing pprsquos Drain oil from pprsquos
523 Boiler Feed Pumps (BFP)
Asset Management Strategy
Minimise any residual hazards remaining in the Boiler Feed pumps
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 9 -
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Boiler feed pumps - Mather amp Platt Drain bearing oil reservoirs
Boiler feed pumps - Sulzer Drain bearing oil reservoirs
Feed pump headers ndash suction and discharge Open all drains and vents and sectionalising valves
Check for gases in all feed water header spaces prior to demolition
Steam driven feed pp Drain oil from bearings
524 Draught Plant
Asset Management Strategy
Minimise any residual hazards remaining in the Draught Plant
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
FD Fans Drain oil from FD fan bearings on Blr 12 amp 3 Note 45 amp 6 have greased bearings
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 10 -
53 Station Auxiliaries
531 Electrical
5311 DC Systems
Asset Management Strategy
Minimise the risk of DC ndash LeadAcid hazards to demolition crew
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
DC batteries A Station 110 volt Remove all LeadAcid batteries
DC batteries B Station 110 volt Remove all LeadAcid batteries
DC batteries B Station UPS Remove all LeadAcid batteries
Diesel generator 24 volt batteries two banks Remove all LeadAcid batteries
Diesel 24 volt Emergency Start Relay batteries Remove all LeadAcid batteries
Diesel Fire Pump Batteries Remove all LeadAcid batteries
DC batteries Station Fire System Remove all LeadAcid batteries
Terminal Room Remove all LeadAcid batteries
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 11 -
Decommission and remove all 132kV line protection devices Electranet
Diesel generator Drain oil and coolant
5312 Switchboards ndash 33kV amp 415V
Asset Management Strategy
To remove any kinetic energy stored in the 33kV switchgear and to supply an alternative power supply for limited emergency lighting and dewatering
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
33kV Breakers Discharge all spring loaded devices This will be done by operators when isolating the station PMA
5313 Power Transformers
Asset Management Strategy
Apply a perimeter isolation to the 275132kV AampB station switchyards to Eliminate risk of Electric Shock by disconnecting all HV supplies at major terminal points in A amp B station switchyards Eliminate the possibility of a transformer oil spill to the surrounding environment
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 12 -
275 kV step up tfrsquos Disconnect step up transformer B1 at 275kV droppers Comp
Disconnect step up transformer B2 at 275kV droppers Comp
Disconnect step up transformer B3 at 275kV droppers Comp
Disconnect step up transformer at B4 275kV droppers Comp
275kV Nth tie transformer disconnect from 275kV droppers
132kV System Disconnect points at isolators of AS2 AS4 amp disconnect cables at 11kV tertiary terminals at Nth tie transformer De-energised
33 kV to 415 volt transformers Drain all transformers and dispose of transformer oil
275 kV step up tfrsquos Drain all transformers and dispose of transformer oil
13211kV transformers
Drain transformers in A Stn switchyard (2 x 13211kV and old spare near canteen)
5314 DCSControl SystemsAlarms
Asset Management Strategy
Minimise the risk of residual power sources
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Processors Low voltage batteries to be removed
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 13 -
DC inverter batteries Remove batteries
5315 Actuators
Asset Management Strategy
Minimise risk of oil spill to environment during demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Drain actuators of oil
5316 BH1 amp Compressor Equipment
Asset Management Strategy
Minimise any pressure hazards in the compressor system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
BH1 Compressor Shutdown compressor and drain Air recievers
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 14 -
Breaker Unplug from breaker housing
5317 11Kv Ring Main Equipment
Asset Management Strategy
Remove environmental contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Stator 11kV switchgear Drain oil
11kV transformers Drain oil
5318 Lifts amp Cranes
Asset Management Strategy
Decommission and de-register lifts and cranes in preparation for demolition
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
B stn Nth and Sth lifts Deregistration
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 15 -
Degas air conditioners
Drain gearbox oil
Drain gearbox oil
PPS Cranes Drain oil from gearboxes
De-register cranes
5319 Public Address System
Asset Management Strategy
Isolate from NPS system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
PA system Disconnect PA system
53110 BE09BE10 33kV Switchgear
Asset Management Strategy
Remove environmental contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 16 -
Plant Description Proposed Actions Responsibility
Stator 33kV switchgear Drain oil
33kV transformers Drain oil
53111 132Kv System
Asset Management Strategy
To remove the DC power supplies to the 132kV protection equipment located in the A stn terminal room
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
132kV protection equipment Relocated by Electranet to a suitable location Electranet
132kV System Disconnect points at isolators of AS2 AS4 amp disconnect cables at 11kV tertiary terminals at Nth tie transformer
532 Coal Systems
5321 Coal Feeders
Asset Management Strategy
To minimise environmental hazards
Controls
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 17 -
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Feeder gearbox Drain gearbox oil
5322 Coal Conveyors
Asset Management Strategy
Remove environmental contaminants and kinetic energy from the coal system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Conveyors Drain gearbox oils (Note detailed risk assessment for access required due to condition of towers)
Wash down all conveyors
Release take up assemblies
Trippers Drain gearbox oils (Note detailed risk assessment for Bin access required due to condition of towers)
Ploughs Drain gearbox oils
Towers Wash down all towers
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 18 -
5323 Bins amp Bunkers
Asset Management Strategy
Minimise environmental hazards Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Bins Wash out bins
533 Fuel Oil
Asset Management Strategy
Remove environmental contaminants from Fuel oil system
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Oil guns Remove and drain oil guns
FO Pipework Drain FO pipework ndash pump degreaser through system
FO transfer pprsquos Drain strainers
FO storage See NPS Closure Manual
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 19 -
534 Ash Systems
5341 Ash pumps amp pit
Asset Management Strategy
Maintain dewatering in B stn basement during salvagedemolition activities via an alternative power supply
Controls The following Controls have been identified to maintain site de-watering during SalvageDemolition operation
Plant Description Proposed Actions Responsibility
Alternative power supply
Install temporary generator for ash pumpde-watering pumps and emergency lighting
Ash pump Alternative power supply andor pump required after site power system shut down
5342 HP amp LP Sluice pumps
Asset Management Strategy
Remove environmental contaminants from sluice pumps
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
HP sluice pumps Drain oil from bearing reservoirs
LP sluice pumps Drain oil from bearing reservoirs
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 20 -
5343 Ash Hoppers
Asset Management Strategy
Remove environmental contaminants from hoppers
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Screw conveyors Drain gearbox oils
5344 Deashers
Asset Management Strategy
Remove environmental contaminants from Deashers
Controls
The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Deashers Drain gearbox oils
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 21 -
535 Compressed Air
Asset Management Strategy
Shut down assets and depressurise the system and remove environmental contanimants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
No 1 amp 2 Compressors Drain oil from air ends and separators
Sth and SW compressors Drain oil from air ends and separators
Air receivers De-pressurise and Open drainvent valves on GS air receivers
De-pressurise and Open drainvent valves on Blr FF air receivers and pulse tanks
De-pressurise and Open drainvent valves on TG air receivers
536 CW Systems
5361 CW Pumps
Asset Management Strategy
Remove environmental contaminants from CW pumps
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 22 -
Plant Description Proposed Actions Responsibility
CW pumps Drain oil from bearings
5362 CW Chambers
Asset Management Strategy
Isolate the gulf waters from the basement
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Chamber
Controls to manage isolation between gulf and basement to be developed Currently spades inserted on CW pump outlets
5363 CW Screens
Asset Management Strategy
Remove environmental contaminants from CW screens
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
CW Screens Drain gearbox and fluid drive oils
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 23 -
537 Water Treatment Plant
Asset Management Strategy
Remove any remaining residual contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Anion tanks Remove and dispose of resin
Mixed bed vessels Remove and dispose of resin
Cation tanks Remove and dispose of resin
Sand filters Remove and dispose of sand
Carbon filters Remove and dispose of Anthracite
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 24 -
538 Town Water and Drains Asset Management Strategy To maintain basement de-watering during salvagedemolition operation
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Plant Description Proposed Actions Responsibility
Sump pumps Install temporary generator for sump pumps
De-watering pump Install temporary generator for de-watering pump
Contaminated drain tank
Pump out Contaminated drain tank after all oils drained from station
Black water system
Disconnect connection from NPS feedline from A stn sewerage tank and Workshopstores sewerage tank Pump out existing tanks in preparation for demolition
Town Water storage tanks Drain water tank
TW supply Isolate TW supply from NPS and SA Water
Hot Water services Drain Workshop and office HWSrsquos
539 Fire Protection system
Asset Management Strategy
Decommission fire protection system and remove environmental contaminants
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 25 -
Plant Description Proposed Actions Responsibility
Fire system Advise FM Global of change in status from insured to uninsured facility
Diesel Fire Pumps See NPS Closure Manual `Infrastructure of Interestrsquo
Water storage tank Drain water tank
FM500 system Decommission and remove cylinder
Accumulator Decommission Accumulator at Fire Diesels
33kV room compressor Drain oil from compressor
Fire extinguishers Remove all fire extinguishers
5310 Workshops and Offices
Asset Management Strategy
Minimise any hazards that may impact on demolition crews
Controls The following Controls have been identified to minimise the hazards that would otherwise have been present during the Salvage or Demolition operation
Item Proposed Actions Responsibility
PPS Fitting Shop
Decommission all Electrical supplies air-conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including asbestos removalmanagement sewage system decommissioning and site rehabilitation
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 26 -
PPS Boiler Shop and Spares Store
Decommission all Electrical supplies air-conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including asbestos removalmanagement sewage system decommissioning and site rehabilitation
PPS Electrical Shop
Decommission all Electrical supplies air-conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including asbestos removalmanagement sewage system decommissioning and site rehabilitation
Kaefers Workshop
Decommission all Electrical supplies air conditioners town water and black water systems to workshop
Inventory and remove all plant tools and equipment for disposal
Review and approve contractor demolition plan including sewage system decommissioning and site rehabilitation
Grit Blasters Facility
Decommission all Electrical supplies town water systems to facility
Inventory and remove all plant tools and equipment for disposal
Offices Decommission Air Conditioners
Salvage and dispose of furniture and fittings
Remove paperwork required to be kept to comply with Statutory obligations
Equipment rooms Decommission Air conditioners
6 Appendix
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 27 -
61 Legal and other Requirements
611 Legislation and Licences
Management Strategy
Comply with all Legislation and Lease agreements during the Closureremediation process
Item Document Responsibility
1 NorthernPlayford Generating Plant Lease
2 NorthernPlayford Land Lease
3 Environmental Compliance Agreement
4 SA Generation Licence
5 EPA Licences
6 AEMO Certification
7 Pressure Vessel Registrations
8 Lifts Registrations
9 WHS Act amp Regulations
10 Code of Practice ndash Demolition Work
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 28 -
612 Alinta Policies
Item Policy Responsibility
1 Compliance Guideline HSSE-019 Demolition and Decommissioning
613 References
Item Documents Responsibility
1 Care to Closure Risk Assessment
2 NPS Care to Closure Plan
3 PPS Hibernation Manual
4 Inspection amp Audit Sheet
62 Project Plan
63 PPS Administration
631 PPS Registered Plant
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 29 -
Management Strategy
To De-commission and de-register registered Plant
Controls
Item Proposed Actions Responsibility
1 Advise Safework SA in writing of pressure vessels that have been decommissioned
2 Advise Safework SA in writing of Lifts that have been decommissioned
632 PPS Isolations
Management Strategy
To wind back plant and system isolations to Perimeter disconnections
Controls
Item Proposed Actions Responsibility
Existing isolations Clear isolations and remove isolation tags from plant
633 Closure Audit
Management Strategy
To provide an Auditable record of controls put in place to render the site as safe as reasonably practical for salvagedemolition
Controls
Item Proposed Actions Responsibility
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 30 -
7
1 Raise work orders for each control action
2 Complete Inspection amp Audit sheets as each system is made safe
PPS Residual Risks
Management Strategy
To highlight to the salvagedemolition third parties any Residual risks remaining that are beyond the Alinta Energy Closure workscope
Item Residual Risks Responsibility
Boiler insulation Contains Asbestos
WorkshopAdmin building materials Contains asbestos
Basement flooding Seawater seepage into basement
Tunnels Cable tunnels exist between Turbine halls and switchyards
Bag Filters
Bags may still be impregnated with ash potential dust problem on demolition Residual Ash may be present in hoppers
PPS Seawall
Vehicle access to sea side of B Station has been closed due to condemned seawall pillings Will present problems to make safe works in this area
S5EnvironmentEnv SectionClosure Env PlanAppendix C PPS Closure Manual Correcteddoc - 31 -
Appendix D
everyone every day every jab Zero Harm
0
i t------------t i t--------t
i
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
5 51
52
53
54
55
System
TurbineBoiler Unit Turbine
Turbine oil systems
Condenser condensate side
Condenser seawater side
Turbine valves
Generator Barring gear
Hydrogen system
CW system CW Pumps
CW Ducts
Feedwater system LP Feedwater
Condensate Polishing Plant
Blr Feed Pumps
HP heaters
Feed make up system
Boiler
Task Name
Ensure all SWMS amp Risk assessments are reviewed and All Personnel signed onto Isolation permits prior to commencing work
NPS Care Closure NPS Unit 1 Care - Project No
TurbineBoiler Unit Turbine
Turbine off
Turbine oil systems
Lube oil system to remain operational
Seal oil system to remain operational
Condenser condensate side
Isolation
Open doors
Condenser seawater side
Drain seawater side of condenser
Turbine valves Isolation
Unit Care - Turbine complete
Generator Barring gear
Run on Barring gear to prevent rotors sagging
Hydrogen system Decommision hydrogen system and purge generator
Unit Care - Generator complete
CW system CW Pumps
Isolation
CW Ducts Ducts to be maintained empty and dry per culvert dewatering system
Unit Care - CW System complete
Feedwater system LP Feedwater
Isolation - CEPs
LP htrs GS Condenser and LP Ejector Drain and store dry
Deaerator and DAFT Drain and store dry
Condensate Polishing Plant
Open vessels
Gas Clearance
Remove resins
Blr Feed Pumps Isolate and drain Feed pumps
HP heaters Isolation
Drain and store dry
Feed make up system
Isolation
Drain Make up tanks
Unit Care - Feedwater System complete
Boiler Boiler off
Duration
0 hrs
24038 hrs
1705 hrs
1705 hrs 725 hrs 1 hr
0 hrs
0 hrs
0 hrs
55 hrs
8 hrs
1 hr
275 hrs
4 hrs
0 hrs 3 hrs
0 hrs
3752 hrs 3752 hrs 120 hrs
1 hr 8 hrs
0 hrs
0 hrs 0 hrs 1 hr
0 hrs 8 hrs
0 hrs
33 hrs 5 hrs 1 hr
8 hrs
8 hrs
27 hrs
2 hrs
1 hr
24 hrs
625 hrs 8 hrs
7 hrs 6 hrs
8 hrs
6 hrs
2 hrs
8 hrs
0 hrs
5332 hrs 2 hrs
Page 1 of 12
39
40
41
42
43
44
45
46
47
48
49
50
a1middotn a s~FE everyone every day every jab Zero Harm
0 I I I
~ ~ i i i
~ ~ i i i
bfl - r r r - l l l
~ ~ i
i i ~ i
~ i
i
~ i i i
-
I I I
i L L L i i
I I I
- -- L L L i -
i -
i -
-
-
i -
i -
i -
i I I I
- L ~
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
56
59
System
Pressure parts Storage
Furnace and Gas path
Draught Plant Air heaters
ID Fans
GR Fan
PA fan
SA fan
Ducts and dampers
ACW System Seawater side
Task Name
Pressure parts Storage
Control cool and drain boiler (in accordance with drainage schedule) Item 8
Isolation
Open boiler doors
Boiler gas clearances
Initiate sprays (pre wash) in Eco 1 amp 2
Furnace and Gas path
Sootblow 8 hrs prior to shutdown
Keep deasher in service for duration of wash
Remove Economiser e-valves
Gas Clearances
Furnace and economiser wash
External Wash down structure
Unit Care - Boiler complete
Draught Plant Air heaters
Shut down once core temp lt 100 degrees
Isolation
Remove dump vvs amp e-vvs
Deluge wash
Open doors
Gas Clearance
Manual internal wash
ID Fans Shut down amp Isolate once unit gas path is dry after precip wash - 48
Open doors
Gas Clearance
Washvocuum windboxes
GR Fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
PA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
SA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
Ducts and dampers
Isolation
Open doors
Gas clearances
WashVacuum GR outlet and precipitator outlet duct
Inspect all ducts and vacuum as required
Unit Care - Draught Plant complete
ACW System Seawater side
Duration
1932 hrs
8 hrs
4 hrs
682 hrs
2 hrs
6 hrs
5332 hrs
6 hrs
0 hrs
4 hrs
1 hr
24 hrs
275 hrs 8 hrs
0 hrs
1695 hrs 4798 hrs 2 hrs
2 hrs
4 hrs
2 hrs
4 hrs
1 hr
16 hrs
165 hrs 4 hrs
4 hrs
1 hr
8 hrs
105 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
1695 hrs
2 hrs
4 hrs
2 hrs
80 hrs
80 hrs
0 hrs
0 hrs 0 hrs 2 hrs Isolate amp drain and dry store (Unit)
Page 2 of 12
93
94
95
96
97
98
99
100
101
102
103
104
everyone every day every jab Zero Harm
0
~ ~ i ~ ~ i i ~ ~ i i ~ i 6tJ i i i ~ i ~ i i i ~ ~ i i i ~ ~ i i
i I-----
i 1------1
I----- i
i 1------1 i
~ i I-----
i I-----
i 1------lii i
i
- l
L
- L
l l
L L
L L
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual System Task Name Index No
Unit Care - ACW System complete
510 Coal System Coal System Bins amp Bunkers Bunkers
Run down bunker levels
Isolate Mill Feeders
Fit bunker emptying chute to EN Feeder chute
Empty EN bunker
Wash EN Bunker
Remove bunker emptying chute from EN
Fit bunker emptying chute to WN Feeder chute
Empty WN bunker
Wash WN Bunker
Remove bunker emptying chute from WN
Fit bunker emptying chute to EC Feeder chute
Empty EC bunker
Wash EC Bunker
Remove bunker emptying chute from EC
Fit bunker emptying chute to WC Feeder chute
Empty WC bunker
Wash WC Bunker
Remove bunker emptying chute from WC
Fit bunker emptying chute to ES Feeder chute
Empty ES bunker
Wash ES Bunker
Remove bunker emptying chute from ES
Fit bunker emptying chute to WS Feeder chute
Empty WS bunker
Wash WS Bunker
Remove bunker emptying chute from WS
Coal feeders Coal feeders Open EN Feeder
Gas clearance
Vac and wash out
Open WN Feeder vac and wash out
Gas clearance
Vac and wash out
Open EC Feeder vac and wash out
Gas clearance
Vac and wash out
Open WC Feeder vac and wash out
Gas clearance
Vac and wash out
Open ES Feeder
Gas clearance
Vac and wash out
Open WS Feeder
Gas clearance
Vac and wash out
Mills Mills Open EN Mill
Gas clearance
Wash out EN Mill - leave open to dry out
Open WN Mill
Gas clearance
Wash out WN Mill - leave open to dry out
Open EC Mill
Duration
0 hrs
7347 hrs 5487 hrs 4 hrs
8 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
4827 hrs 1 hr
1 hr
465 hrs
4 hrs
1 hr
4 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
74 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
832 hrs
5655 hrs 1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
Page 3 of 12
148
149
150
151
152
153
154
155
156
157
158
159
160
everyone every day every jab Zero Harm
0 i
1-------1~
1-------1 i
~ i 1-------1
i 1-------1
~ i 1-------1 i
1-------1~
i 1-------1
l-------16tl
1-------1~
i 1-------1
i 1-------1
1-------1~
i 1-------1
1-------1~
i 1-------1
i 1-------1 i 1-------1~
1-------1~
1-------1 ~ i
1-------1~
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
511
512
6 62
5 51
System
Fuel Oil FO pumps
Storage tanks
Ash system Hoppers
Precips
Deasher
Ash pitpumps
Electrical Systems Instrumentation
TurbineBoiler Unit Turbine
Turbine oil systems
Task Name
Gas clearance
Wash out EC Mill - leave open to dry out
Open WC Mill
Gas clearance
Wash out WC Mill - leave open to dry out
Open ES Mill
Gas clearance
Wash out ES Mill - leave open to dry out
Open WS Mill
Gas clearance
Wash out WS Mill - leave open to dry out
Release roller spring tension
Unit Care - Coal System complete
Fuel Oil FO pumps
Shut oil pumps down when unit OOS
Isolate fuel oil system
Clean filters and system
Drain FO system
Storage tanks Run down storage level (burn sell if possible)
Isolate
Unit Care - Fuel Oil complete
Ash system Hoppers
Run local manual dump
Open hopper doors
Precips Isolate
Remove Precip e-valves
Gas clearance
Full wash of internals - washing manifold
Store with air doors open for natural air circulation
Deasher Isolation
Gas clearance
Full wash of all internals store dry
Ash pitpumps Flush and pump down pit - leave available
Unit Care - Ash System complete
Electrical Systems Instrumentation
Build scaffold for furnace camera removal
Remove furnace camera
Dismantle scaffold after furnace camera removal
Unit Care - Electrical Systems complete
Unit 1 Care Complete
NPS Unit 2 Care - Project No TurbineBoiler Unit
Turbine Turbine off
Turbine oil systems
Lube oil system to remain operational
Seal oil system to remain operational
Duration
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
6 hrs
0 hrs
345 hrs 335 hrs 1 hr
1 hr
8 hrs
24 hrs
0 hrs 0 hrs
1 hr
0 hrs
629 hrs 629 hrs 8 hrs
3 hrs
525 hrs 4 hrs
24 hrs
1 hr
24 hrs
0 hrs
417 hrs 2 hrs
1 hr
2 hrs
0 hrs 0 hrs
0 hrs
14 hrs 14 hrs 4 hrs
8 hrs
2 hrs
0 hrs
0 hrs
18598 hrs
18598 hrs 2238 hrs 1 hr
0 hrs
0 hrs
0 hrs
Page 4 of 12
204
205
206
207
208
209
210
211
212
213
214
a1middotn a s~FE everyone every day every jab Zero Harm
0 I I I
~ i
~
~ - r r r - l l l
~
~ I I I
- l L l ~
~ I I I
- L L L ~ ~ ~
i i i
~
lii Iii
Iii ~ -
I I I
-
Iii L L L -
lil ~ i i i
lil 6tl i i i
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
52
53
54
55
System
Condenser condensate side
Condenser seawater side
Turbine valves
Generator Barring gear
Hydrogen system
CW system CW Pumps
CW Ducts
Feedwater system LP Feedwater
Condensate Polishing Plant
Blr Feed Pumps
HP heaters
Feed make up system
Boiler
Pressure parts Storage
Furnace and Gas path
Task Name
Condenser condensate side
Isolation
Open doors
Condenser seawater side
Drain seawater side of condenser
Turbine valves Isolation
Unit Care - Turbine complete
Generator Barring gear
Run on Barring gear to prevent rotors sagging
Hydrogen system Decommision hydrogen system and purge generator
Unit Care - Generator complete
CW system CW Pumps
Isolation
CW Ducts Ducts to be maintained empty and dry per culvert dewatering system
Unit Care - CW System complete
Feedwater system LP Feedwater
Isolation - CEPs
LP htrs GS Condenser and LP Ejector Drain and store dry
Deaerator and DAFT Drain and store dry
Condensate Polishing Plant
Open vessels
Gas Clearance
Remove resins
Blr Feed Pumps Isolate and drain Feed pumps
HP heaters Isolation
Drain and store dry
Feed make up system
Isolation
Drain Make up tanks
Unit Care - Feedwater System complete
Boiler Boiler off
Pressure parts Storage
Control cool and drain boiler (in accordance with drainage schedule) Item 8
Isolation
Open boiler doors
Boiler gas clearances
Initiate sprays (pre wash) in Eco 1 amp 2
Furnace and Gas path
Sootblow 8 hrs prior to shutdown
Keep deasher in service for duration of wash
Remove Economiser e-valves
Gas Clearances
Furnace and economiser wash
Duration
617 hrs
8 hrs
1 hr
24 hrs
4 hrs
0 hrs 3 hrs
0 hrs
227 hrs 227 hrs 120 hrs
2 hrs 8 hrs
0 hrs
0 hrs 0 hrs 1 hr
0 hrs 8 hrs
0 hrs
33 hrs 617 hrs 1 hr
8 hrs
8 hrs
27 hrs
2 hrs
1 hr
24 hrs
557 hrs 8 hrs
757 hrs 6 hrs
8 hrs
717 hrs
2 hrs
8 hrs
0 hrs
543 hrs 2 hrs
203 hrs
8 hrs
4 hrs
713 hrs
2 hrs
6 hrs
543 hrs
6 hrs
0 hrs
4 hrs
1 hr
24 hrs
Page 5 of 12
255
256
257
258
259
260
261
262
263
264
265
266
a1middotn a s~FE everyone every day every jab Zero Harm
0
~ i - r r r - L L L
~ ~ i
i i ~
6 i
i
~ i i i
i i i
i i i
i i --
i i
~ -
- L L L ~ ~ i ~ i ~ i i i ~ i Iii i i
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
56
59
Isolate amp drain and dry store (Unit)
510
System
Draught Plant Air heaters
ID Fans
GR Fan
PA fan
SA fan
Ducts and dampers
ACW System Seawater side
Coal System Bins amp Bunkers
Task Name
External Wash down structure
Unit Care - Boiler complete
Draught Plant Air heaters
Shut down once core temp lt 100 degrees
Isolation
Remove dump vvs amp e-vvs
Deluge wash
Open doors
Gas Clearance
Manual internal wash
ID Fans Shut down amp Isolate once unit gas path is dry after precip wash - 48
Open doors
Gas Clearance
Washvocuum windboxes
GR Fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
PA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
SA fan Isolation
Open doors
Gas Clearance
Washvocuum windboxes
Ducts and dampers
Isolation
Open doors
Gas clearances
WashVacuum GR outlet and precipitator outlet duct
Inspect all ducts and vacuum as required
Unit Care - Draught Plant complete
ACW System Seawater side
Unit Care - ACW System complete
Coal System Bunkers
Run down bunker levels
Isolate Mill Feeders
Fit bunker emptying chute to EN Feeder chute
Empty EN bunker
Wash EN Bunker
Remove bunker emptying chute from EN
Fit bunker emptying chute to WN Feeder chute
Empty WN bunker
Wash WN Bunker
Remove bunker emptying chute from WN
Duration
24 hrs 8 hrs
0 hrs
16917 hrs 4748 hrs 2 hrs
2 hrs
4 hrs
2 hrs
4 hrs
1 hr
16 hrs
13 hrs 4 hrs
4 hrs
1 hr
8 hrs
1067 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
11 hrs 2 hrs
4 hrs
1 hr
4 hrs
16917 hrs
2 hrs
4 hrs
2 hrs
80 hrs
80 hrs
0 hrs
0 hrs 0 hrs 2 hrs
0 hrs
7347 hrs 5865 hrs 4 hrs
8 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
Page 6 of 12
309
310
311
312
313
314
315
316
317
318
319
320
321
a1middotn a s~FE everyone every day every jab Zero Harm
0 I I I i ~ ~ i i ~ ~ i i i ~ i ~ i i i 6 i ~ i
i i
i i
i
i - -- r r r i ~ L L L i i ~ I I I
i - - L L L
~ i i
~ i i
~ i
~ i
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual System Task Name Index No
Fit bunker emptying chute to EC Feeder chute
Empty EC bunker
Wash EC Bunker
Remove bunker emptying chute from EC
Fit bunker emptying chute to WC Feeder chute
Empty WC bunker
Wash WC Bunker
Remove bunker emptying chute from WC
Fit bunker emptying chute to ES Feeder chute
Empty ES bunker
Wash ES Bunker
Remove bunker emptying chute from ES
Fit bunker emptying chute to WS Feeder chute
Empty WS bunker
Wash WS Bunker
Remove bunker emptying chute from WS
Coal feeders Coal feeders Open EN Feeder
Gas clearance
Vac and wash out
Open WN Feeder vac and wash out
Gas clearance
Vac and wash out
Open EC Feeder vac and wash out
Gas clearance
Vac and wash out
Open WC Feeder vac and wash out
Gas clearance
Vac and wash out
Open ES Feeder
Gas clearance
Vac and wash out
Open WS Feeder
Gas clearance
Vac and wash out
Mills Mills Open EN Mill
Gas clearance
Wash out EN Mill - leave open to dry out
Open WN Mill
Gas clearance
Wash out WN Mill - leave open to dry out
Open EC Mill
Gas clearance
Wash out EC Mill - leave open to dry out
Open WC Mill
Gas clearance
Wash out WC Mill - leave open to dry out
Open ES Mill
ltNew Taskgt
Wash out ES Mill - leave open to dry out
Open WS Mill
Gas clearance
Wash out WS Mill - leave open to dry out
Release roller spring tension
Unit Care - Coal System complete
Duration
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
2 hrs
16 hrs
12 hrs
2 hrs
509 hrs 1 hr
1 hr
465 hrs
4 hrs
1 hr
4 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
75 hrs
4 hrs
1 hr
45 hrs
4 hrs
1 hr
832 hrs
554 hrs 1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
1 hr
8 hrs
1 hr
8 hrs
8 hrs
1 hr
1 hr
8 hrs
6 hrs
0 hrs
Page 7 of 12
365
366
367
368
369
370
371
372
373
374
375
376
377
everyone every day every jab Zero Harm
0
~ gt------------lt~
i I-----
i t-------t
I-----~
I-----~
I-----~
i t-------t
6tJ I----- i
i t-------t
i gt------------lt~
gt------------lt~
I-----~
gt------------lt~
t-------t i
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t-------t i
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
System Task Name Duration
378 511 Fuel Oil Fuel Oil 5048 hrs 379 FO pumps FO pumps 3367 hrs 380 Shut oil pumps down when unit OOS 1 hr
381 Isolate fuel oil system 1 hr
382 Clean filters and system 8 hrs
383 Drain FO system 24 hrs
384 Storage tanks Storage tanks 0 hrs 385 Run down storage level (burn sell if possible) 0 hrs
386 Isolate 1 hr
387 Unit Care - Fuel Oil complete 0 hrs
388 512 Ash system Ash system 7803 hrs 389 Hoppers Hoppers 6322 hrs 390 Run local manual dump 8 hrs
391 Open hopper doors 3 hrs
392 Precips Precips 5217 hrs 393 Isolate 4 hrs
394 Remove Precip e-valves 24 hrs
395 Gas clearance 1 hr
396 Full wash of internals - washing manifold 24 hrs
397 Store with air doors open for natural air circulation 0 hrs
398 Deasher Deasher 417 hrs 399 Isolation 2 hrs
400 Gas clearance 1 hr
401 Full wash of all internals store dry 2 hrs
402 Ash pitpumps Ash pitpumps 0 hrs 403 Flush and pump down pit - leave available 0 hrs
404 Unit Care - Ash System complete 0 hrs
405 6 Electrical Systems Electrical Systems 14 hrs 406 62 Instrumentation Instrumentation 14 hrs 407 Build scaffold for furnace camera removal 4 hrs
408 Remove furnace camera 8 hrs
409 Dismantle scaffold after furnace camera removal 2 hrs
410 Unit Care - Electrical Systems complete 0 hrs
411 Unit 1 Care Complete 0 hrs
412 NPS Station Care - Project No 101 hrs
413 5 TurbineBoiler Unit TurbineBoiler Unit 101 hrs 414 510 Coal System Coal System 101 hrs 415 Train unloading Train unloading 3 hrs 416 Isolate unloader 1 hr
417 Washvaccuum train unloader 2 hrs
418 Bins Bins 64 hrs 419 Wash out coal bins 64 hrs
420 Conveyors Conveyors 100 hrs 421 Isolate conveyors 4 hrs
422 Wash down conveyors 32 hrs
423 Coal Towers Coal Towers 32 hrs 424 Wash down coal towers 32 hrs
425 Station Care - Coal System complete 0 hrs
426 511 Fuel Oil Fuel Oil 585 hrs 427 FO pumps FO pumps 585 hrs 428 Isolate fuel oil unloading delivery pumps 2 hrs
429 Drain fuel oil pipework 24 hrs
430 FO Storage tanks FO Storage tanks 32 hrs 431 Drain fuel oil storage tanks and vaccuum out any residue 32 hrs
432 FO Storage - PPS FO Storage - PPS 10 hrs 433 Run stocks to minimum levels 0 hrs
Page 8 of 12
everyone every day every jab Zero Harm
0
t------t i
t------t i
f--------l i
i t------t
i t------t
i f--------l i
f--------l i
i f--------l i
i f--------l
i t------t
i f--------l i
t------t i
t------t i
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
7 71
5 51
53
54
System
FO Storage - service tank
Stn Aux Aux Blr
TurbineBoiler Unit Turbine Turbine Oil Systems
CEPs
Turbine valves
CW system Chambers
CW Pumps
CW Dosing
Feedwater system
Task Name
Clean out remaining oil
FO Storage - service tank
Run stocks to minimum levels
Clean out remaining oil
Station Care - Fuel Oil complete
Stn Aux Aux Blr
Isolation
Drain and dry store Aux Blr
DACP Disconnect discharge pipework
Remove collection vessel filter bags
Wash collection vessels
NPS Station Care Complete
NPS Closure - Project No TurbineBoiler Unit
Turbine Turbine Oil Systems
Isolation
Drain main oil tank and pipework
Drain seal oil defoaming tank and pipework
Drain seal oil drain regulator tanks
Drain Loop seal tanks
Isolate electrical supplies to pumps
CEPs Drain oil from CEP and motor
Turbine valves Isolate power supplies
Drain actuators and pipework
Drain control stations and acumulators
NPS Closure - Turbine complete
CW system Chambers
Stop log sealing faces to be cleaned divers required
Install stop logs
CW chamber drained
dewatering pump installed
Remove CW pump
Fit blanks
Remove Dewatering pp
Remove stop logs
CW Pumps Drain oil from pump bearings
Ferrous Chloride dosing
Drain and flush tank amp pipe work to condenser
Isolation
Chlorination Plant Flush acid pipe work with sea water
Isolation
Drain acid tank
Wash out acid tank
NPS Closure - CW System complete
Feedwater system
Duration
8 hrs
10 hrs
0 hrs
8 hrs
0 hrs
715 hrs 10 hrs 2 hrs
8 hrs
18 hrs 2 hrs
8 hrs
8 hrs
0 hrs
24038 hrs
24038 hrs 168 hrs 168 hrs
4 hrs
64 hrs
32 hrs
32 hrs
32 hrs
4 hrs
32 hrs 32 hrs
98 hrs 2 hrs
48 hrs
48 hrs
0 hrs
24038 hrs 218 hrs 32 hrs
32 hrs
16 hrs
2 hrs
80 hrs
32 hrs
8 hrs
16 hrs
8 hrs 8 hrs
17 hrs
16 hrs
1 hr
5 hrs 1 hr
2 hrs
1 hr
1 hr
0 hrs
35 hrs
Page 9 of 12
475
476
477
478
479
480
481
482
483
484
485
486
everyone every day every jab Zero Harm
0
t------t i
t------t i
t------t i
t-------t i
t------t i
t------t i
t-------t i
t------t i
t-------t i
t------t i
t-------t i
t-------t i
t------t i
i
t------t i
t------t i
i t-------t i
t------t i
t------t i
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
System Task Name Duration
487 Res Feed Water Tanks Res Feed Water Tanks 2 hrs
488 Drain RFW tanks 2 hrs
489 LP Feedheaters LP Feedheaters 8 hrs 490 Open drains and doors 8 hrs
491 GS condenser GS condenser 8 hrs 492 Open drains and doors 8 hrs
493 LP ejector LP ejector 8 hrs 494 Open drains and doors 8 hrs
495 Boiler feed Pumps Boiler feed Pumps 32 hrs 496 Remove oil from BFP and GTD 32 hrs
497 HP 6 amp 7 HP 6 amp 7 4 hrs 498 Open drains 4 hrs
499 Ammonia dosing pp Ammonia dosing pp 4 hrs
500 Drain oil from bearings 4 hrs
501 55 Boiler Boiler 8 hrs 502 Pressure parts Pressure parts 8 hrs 503 Open all drains and vents 8 hrs
504 Safety valves Safety valves 8 hrs 505 Relieve safety valve spring tensions 8 hrs
506 Blowdown vessels Blowdown vessels 8 hrs 507 Open all drains and vents 8 hrs
508 56 Draught Plant Draught Plant 16 hrs 509 Air Heaters Air Heaters 16 hrs 510 Drain oil from bearings and gearboxes 16 hrs
511 ID fans ID fans 16 hrs 512 Drain oil from bearings and oil tanks 16 hrs
513 GR Fan GR Fan 8 hrs 514 Drain oil from bearings and oil tanks 8 hrs
515 PA fan PA fan 8 hrs 516 Drain oil from bearings and oil tanks 8 hrs
517 SA SA 8 hrs 518 Drain oil from bearings and oil tanks 8 hrs
519 57 Valves Valves 40 hrs 520 Station safety vvs Station safety vvs 40 hrs 521 Relieve spring tensions 40 hrs
522 510 Coal System Coal System 125 hrs 523 Ploughs Ploughs 8 hrs 524 Drain gearbox oils 8 hrs
525 Trippers Trippers 8 hrs 526 Drain gearbox oils 8 hrs
527 Conveyors Conveyors 24 hrs 528 Drain oil from gearboxes 24 hrs
529 Coal feeders Coal feeders 36 hrs 530 Drain oil from gearboxes 36 hrs
531 Mills Mills 96 hrs 532 Drain oil from gearboxes 96 hrs
533 Drain oil from Rollers 48 hrs
534 512 Ash system Ash system 8 hrs 535 Deasher Deasher 8 hrs 536 Drain oil from hydraulic units 8 hrs
537 Crusher Crusher 4 hrs 538 Drain oil from crusher drive 4 hrs
539 Ash pitpumps Ash pitpumps 4 hrs 540 Isolate amp install submersible pp (discuss with contractor) 4 hrs
541 6 Electrical Systems Electrical Systems 24038 hrs
Page 10 of 12
everyone every day every jab Zero Harm
0
f------t i
f------t i
i f------t
i f------t i
i f------t
i f------t i
f------t i
i f------t
i f------t
f------t i
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID Wg Manual Index No
61
62
63
64
65
67
7 71
72
73
System
Control Systems FCS battery systems
Fire safety system
Instrumentation FCS stations
FCS inverter output
FCS inverter input
DC systems DC systems 220v
110v
24v
HV supply High Voltage supply
Switchboards 66
415V
Diesel Generators
Stn Aux Aux Blr
Compressed Air Compressors
Receivers
WTP RO Plant
Task Name
Control Systems FCS battery systems
Remove low voltage dc batteries
Fire safety system Decommission and remove DC battery inverter
Instrumentation FCS stations
Isolate AC supply to FCS stations
FCS inverter output
Isolate inverter supply to FCS stations
FCS inverter input Decommision inverter DC supplies
DC systems DC systems 220v
Decommission battery charger
Remove batteries
Wash down battery storage area
110v Decommission battery charger
Remove batteries
Wash down battery storage area
24v
Decommission battery charger
Remove batteries
Wash down battery storage area
HV supply High Voltage supply
Disconnect 275kV supply at Davenport - Electranet
Disconnect at the 18kV side of the transformer
Disconnect the 132kV line to the House transformer
Switchboards 66
Isolate 66 switchboards
discharge breaker spring
415V discharge breaker spring
Diesel Generators
Electrical disconnection
Mechanical Disconnection
Drain fuel tank
Electrical Systems complete
Stn Aux Aux Blr
Drain Auxillary blr fuel oil tank
Drain dosing chemicals
Compressed Air Compressors
Shut down and isolate compressors
Receivers Open up Air receivers
WTP RO Plant
Duration
6 hrs 6 hrs
6 hrs
2 hrs 2 hrs
3 hrs 2 hrs 2 hrs
3 hrs
3 hrs
1 hr 1 hr
24038 hrs 16 hrs 1 hr
16 hrs
2 hrs
12 hrs 1 hr
12 hrs
2 hrs
15 hrs 4 hrs
1 hr
8 hrs
2 hrs
48 hrs 48 hrs
0 hrs
24 hrs
24 hrs
24 hrs 24 hrs 2238 hrs
24 hrs
24 hrs 24 hrs
36 hrs 2 hrs
16 hrs
16 hrs
2 hrs
0 hrs
40 hrs 8 hrs 8 hrs
2 hrs
3 hrs 3 hrs 3 hrs
1 hr 1 hr
40 hrs 8 hrs
Isolate system
Isolate generators for removal
Page 11 of 12
583
584
585
586
587
588
589
590
591
592
593
594
595
everyone every day every jab Zero Harm
0 f------t
i
i f------t
i f------t
f------t i
f------t i
f------t i
f------t i
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
NPS Closure amp Care (Draft) All Tasks
2016 Closure amp Care Draft Sacrificial removed Draftmpp
ID
635
636
Wg Manual Index No
74
Remove all portable fire extinguishers from site
8 81
83
84
System
WTP
Fire Protection Fire feedwater
Fire Deluge systems
Diesel Fire Pumps
Electric pmps
Fire detection DCPs
Halon systems
Vesda system
Fire extinguishers
Services Workshops Mills
Plant
ElectricalCoal line
Chem Lab
Admin
Document information and management
Pressure vessel de-registration
Security Appendix
Task Name
Decommission plant
WTP Drain all vessels
Dispose of resins and chemicals
Fire Protection Fire feedwater
Isolate from supply and drain system
Fire Deluge systems
Drain at pump discharge and each deluge station
Diesel Fire Pumps Drain fuel tank engine oil and coolant
Electric pumps Isolate motors
Fire detection DCPs
Isolate and remove lead acid batteries
Halon systems Decommission and Remove Halon cylinders
Vesda system remove batteries from Vesda units
Fire extinguishers
Services Workshops
Mills Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
Plant Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
ElectricalCoal line Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
Chem Lab Remove all chemicals and lubricants
Catalogue and remove equipment and tools for disposal
Admin ltNew Taskgt
Document information and management
Pressure vessel de-registration
Duration
8 hrs
40 hrs 40 hrs
40 hrs
8 hrs 4 hrs 4 hrs
8 hrs
8 hrs
8 hrs 8 hrs
2 hrs 2 hrs
8 hrs
8 hrs
8 hrs 8 hrs
4 hrs 4 hrs
8 hrs 8 hrs
40 hrs 40 hrs 8 hrs 2 hrs
8 hrs
8 hrs 2 hrs
8 hrs
8 hrs 2 hrs
8 hrs
40 hrs 40 hrs
24 hrs
8 hrs 8 hrs
8 hrs
8 hrs
8 hrs
8 hrs
85 9
Page 12 of 12
Appendix E
NPS Chemical plant that needs to be decommissioned
LPG ignition system decommissioning when Confirmation amp monitoring amount to contend with Removal dateComplete Target removal date
2 x 200kg cylinders owned by origin Disconnect cylinders and connect nitrogen bank of cylinders to purge pipework after units shutdown Cylinders removed - no monitoring required
1 and half cylinders
Arrange for shift to open aux boiler and each burner separately monitor pipework for explosive gases
Get origin to remove cylinders from site 21062016
Ammonia Dilution system
20 m3 tank and filling pipework
Use as much as possible in normal operation Remnants in tank while units still operating dilute with copious amounts of sea water and drain to contaminated drains Refill tank with demin water and drain to contaminated drains system amd the refill to above pump take off level Pump water through filling pipework to dosing tanks
in week before units shut down Empty tank and monitor for ammonia and pH
1 to 2 m3 25 to 5 NH3 21062016
2 x transfer pumps and transfer pipe to unit 1 unit 2 and boiler filling pump
When dilution tank decontaminated and filled with fresh water pump water through dosing pumps and lines for 20 minutes
in week before units shut down Empty tank and monitor for ammonia and pH
21062016
3 x 2000 litre dosing tanks and associated pumps and dosing lines
use as much during normal service and then drain with diltion water to the contaminated drains system Refill with fresh water and drain to contaminated drains Boiler dosing tank can be decommissioned in week before units come off
one at a time as units come off Empty tank and monitor for ammonia and pH
3 x 200litres 025 NH3 21062016
Hydrogen banks and pipework into station
8 banks of hydrogen BOC to remove after units off Cylinders removed - no monitoring required
21062016
stable flow controllers and hydrogen pipework purged when generator is purged with carbon dioxide after units off purged monitor for explosive gases 21062016
Water Treatment Plant including Reverse Osmosis plant 98 sulphuric acid
2 x bulk chemical storage tanks (max vol 36m3)
Use as much as possible during normal service Pump down from either drain or 1inch take off until level below man hole Take off man hole cover and pump out sulphuric acid until only remnants remain Open drain to bund and wash tank out to decontaminate and then release to effluent bulk tank with diluted sodium hydroxide remnants to neutralise the mixture before pumping to ash pit and ash pond
one before units come off and the other shortly afterwards
empty tank - monitor effluent for pH 3 to 4 m3 98 H2SO4 8062016
2 x measure vessels leave empty after last regeneration and then remove bottom flange and remove standpipe and flush with water
one before units come off and the other shortly afterwards
montor pH in drain 1 or 2 litres 98 H2SO4 8062016
pipework disconnect and flush with water one before units come off and the other shortly afterwards
Monitor pH in drain lt1 litre 98 H2SO4 8062016
2 x 20 sulphuric acid dilution tanks and pipework
run tank out during last regeneration and drain remnants to effluent system Disconnect pipework and flush with water
one before units come off and the other shortly afterwards
Monitor pH in drain 2 x 200litres 20 H2SO4 8062016
50 sodium hydroxide
2 x bulk chemical storage tanks (max vol 36m3)
Use as much as possible during normal service Pump down from either drain or 1inch take off until level below man hole Take off man hole cover and pump out sodium hydroxide until only remnants remain Open drain to bund and wash tank out to decontaminate and then release to effluent bulk tank with diluted sulphuric acid remnants to neutralise the mixture before pumping to ash pit and ash pond
one before units come off and the other shortly afterwards
empty tank - monitor effluent for pH 3 to 4 m3 50 NaOH 23062016
2 x measure vessels leave empty after last regeneration and then remove bottom flange and remove standpipe and flush with water
one before units come off and the other shortly afterwards
montor pH in drain 1 to 2 litres 50 NaOH 23062016
pipework disconnect and flush with water one before units come off and the other shortly afterwards
montor pH in drain lt 1 litre 50 NaOH 23062016
50 sulphuric acid IBC run out product in service or send back to ace chemicals also could put in acid dilution tank and use in regeneration of cation resin If only remnants drain to contaminated drains system
in week before units shut down montor pH in drain lt 500litres 50 H2SO4 8062016
42 Ferric chloride IBC run out product in service or send back to ace chemicals also if only remnants remain drai in week before units shut down montor pH in drain lt 5 Litres FeCL3 42 21062016
10 Sodium metabisulphate tank Bubble air through solution for a cou[ple of days until sodium metabisulphite forms sodium sulphate and then drain to contaminated drains system
in week before units shut down montor pH and ORP in drain lt200 litres NaSO4 or SMBS 20062016
antiscalant tank run out in normal service and drain residue to contaminated drains system in week before units shut down Monitor Phosphate 20 litres antescalant 20062016
2 x anion 2 x cation and 2 x mixed bed vessels ion exchange resin
pump out resin to storage truck to be removed from site - Cations 2 x 7000litres Anions 2 x 5400 litres Mixed beds 2 x 1250 litres of ion exchange resin
one train before units come off and the other shortly afterwards
27300 litre ion exchange resin 14062016
Condensate polishers
5 x ion exchange resin charges pump out resin to storage truck to be removed from site =gt Adelaide approx 6200 litres per charge
3 resin charges when first unit is in non-return to service period and other 2 when second unit is off
31000 litre ion exchange resin 14062016
Sulphuric acid measure vessel and Sodium hydroxide measure vessel
leave empty after last regeneration and then remove bottom flange and remove standpipe and flush with water
in week before units shut down montor pH in drain 1 or 2 litres 98 H2SO4 and 50 NaOH soln
8062016
pipework (concentrated chemical) disconnect and flush with water in week before units shut down montor pH in drain lt1 litre 98 H2SO4 and 50 NaOH soln
8062016
Sulphuric acid dilution vessel and pipework run tank out during last regeneration and drain remnants to effluent system Disconnect pipework and flush with water
in week before units shut down montor pH in drain 250litres 20 H2SO4 8062016
Ferrous Chloride
12 ferrous chloride tank pump out ferrous chloride for disposal and wash out remnants to contaminated drains system with copious dilution
in week before units shut down montor pH and iron in drain 5 m3 12 FeCL2 soln 21062016
dilution 1-2 solution tank Use as much as possible during normal operation and flush out remnants of tanks to contaminated drains system
in week before units shut down montor pH and iron in drain 15m3 1 - 2 soln 21062016
Carbon dioxide
36 G size cylinders Use carbon dioxide up in generator purge and purging hydrogen lines After Units off Could start one unit purge in last week of running
21062016
Pipework break pipe work at various locations to release carbondioxide After Units off Could start one unit purge in last week of running
21062016
Generators
2 x hydrogen in generator space Displace hydrogen with carbon dioxide at ealiest time possible and then purge with air After Units off Could start one unit purge in last week of running
orsat check 21062016
Chlorine plant 1000litres of 2 to 3 hydrochloric acid solution
Drain to contaminated drains system with copious waterseawater dilution in week before units shut down montor pH in drain 5000 litres lt1 HCl solution 21062016
Auxillary boiler dosing tank 60 litres BWT dosing solution Neutralise with acid or dilute with lots of water and into contaminated drains system in week before units shut down montor pH in drain 40 litres BWT 21062016
Workshop and laboratory chemicals amp hazardous substances Various chemicals solvents oils and Greases Arrange disposal by contractor After shut down 27062016
Bottled Gas
Various Cylinders on site Arrange transport to BOC After shut down Cylinders removed - no monitoring required
21062016
SF6 amp Freon in GCB amp transformers and Spare SF6 Freon cylinders SF6 and Freon in Generator circuit breaker and transformers and cyliders of SF6 and Freon in workshops and store compound
Arrange recovery and disposal by contractor After Shut down 21062016
Radio active substances (XRF etc etc) Pulsed XRF 2 x hand held XRF and Benchtop XRF in Laboratory
Oxford Instruments model X-Met 3000T Tube serial no 702033 (EPA no 21237) has been disabled Hand held pulsed and benchtop XRF to be sold
After Shut down 1102016
Petrol Tank underground storage NPS Store Get pumped out for Macmahons to remove
Timeframe After Shutdown
Target date 30062016
Status Complete
Diesel tanks Fire diesel tanks Cat Generator Tank
Get Pumped out Get Pumped out
Late June Late June
30062016 30062016
Complete Complete
Fuel Oil Aux Boiler Main fuel oil tank PPS fuel oil tank Flush fuel oil system including PPS to NPS pipeline
Get pumped out and cleaned Get pumped out and cleaned Clean out
Get pumped out and cleaned
After Shutdown After Shutdown After Shutdown
After Shutdown
31082016 31082016 31082016
31082016
Emptied - to be cleaned Emptied - to be cleaned Emptied - to be cleaned
Emptied - to be cleaned
Oils Plant - all but transformers and turbines Workshop and stores
Pump out - fans air heaters BFPs ID fans Gr Fans Mills Deashers and ploughs collect together on shut down
After Shutdown After shut down
31082017 31082017
Transformers degass- Remove Freon gas Coal line transformers site transfromers
Reclaim at shut down Reclaim when de-energised
After shut down June
31082017 31082017
Generator circuit breakers remove SF6 Generator circuit breakers SF^ in store
reclaim gas from circuit breakers Dispose of gas cylinders
after shut down after shut down
31082017 30062016 Complete
Batteries Various NiCad Lithium NiMetal hydride etc Lead acid in disposal area Battery room batteries
collect together on shut down collect together at shutdown McMahons
After shut down After shut down After shutdown
30062016 30062016 30062016
Complete Complete Complete
Mercury Globes and mamometers etc Collect together on shutdown After shutdown 30062016 Complete
Greases and permalubes Workshop and stores Collect together on shutdown After shutdown 31082017
Appendix E1
NPS Chemical plant that needs to be decommissioned
Item number decommissioning when amount to contend with
Ammonia Dilution system
1 NPS ammonia dilution 20 m3 tank Drain tank and flush out in week before units shut down 1 to 2 m3 25 to 5 NH3
2 3 x 2000 litre dosing tanks at NPS pump out remnants one at a time as units come off 3 x 200litres 25 NH3
Water Treatment Plant including Reverse Osmosis plant
98 sulphuric acid
3 2 x bulk chemical storage tanks (max vol 36m3)
at NPS Pump out tank and decontaminate Remove built up sludge
one before units come off and
the other shortly afterwards 3 to 4 m3 98 H2SO4
4 2 x 20 sulphuric acid dilution tanks at NPS pump out tank and decontaminate one before units come off and
the other shortly afterwards 2 x 200litres 20 H2SO4
50 sodium hydroxide
5 2 x bulk chemical storage tanks (max vol
36m3) at NPS Pump out tank and decontaminate Remove built up sludge
one before units come off and
the other shortly afterwards 3 to 4 m3 50 NaOH
6 50 sulphuric acid IBC at NPS Pump out tank and decontaminate Remove built up sludge in week before units shut down lt 500litres 50 H2SO4
7 10 Sodium metabisulphate tank RO plant NPS pump out tank and decontaminate in week before units shut down lt200 litres NaSO4 or SMBS
8 antiscalant tank RO plant NPS pump out tank and decontaminate in week before units shut down 20 litres antescalant
9 2 x anion 2 x cation and 2 x mixed bed vessels
ion exchange resin at NPS
pump out resin to storage truck to be removed from site - Cations 2 x
7000litres Anions 2 x 5400 litres Mixed beds 2 x 1250 litres of ion exchange
resin
one train before units come off
and the other shortly afterwards 27300 litre ion exchange resin
Condensate polishers
10 5 x ion exchange resin charges at NPS pump out resin to storage truck to be removed from site =gt Adelaide approx
6200 litres per charge
3 resin charges when first unit is
in non-return to service period
and other 2 when second unit is
off
31000 litre ion exchange resin
11 Sulphuric acid dilution vessel at NPS pump out tank and decontaminate in week before units shut down 250litres 20 H2SO4
Ferrous Chloride
12 NPS 12 ferrous chloride tank pump out tank and decontaminate in week before units shut down 5 m3 12 FeCL2 soln
13 NPS dilution 1-2 solution tank pump out tank and decontaminate in week before units shut down 15m3 1 - 2 soln
Auxillary boiler dosing tank
14 NPS AUX BLR - 60 litres BWT dosing solution pump out tank and decontaminate in week before units shut down 60 litres BWT
Workshop and laboratory chemicals amp hazardous substances
15 Various chemicals solvents oils and Greases
at NPS remove workshop chemicals oils etc After shut down manifest
16 Various chemicals paints amp glues at NPS Remove Site store oils and chemicals After shut down manifest
Petrol Tank underground storage
17 NPS Store Get pumped out for Macmahons to remove tank After Shutdown
Max 115 Kilolitres hopefully
done to lt1000 litres
Diesel tanks
18 NPS and PPS Fire diesel tanks Move to main diesel tank near tower C Late June 3700 litres max
19 NPS Cat Generator Tank Move to main diesel tank near tower C Late June 4700 litre max
Fuel Oil
20 NPS Aux Boiler tank Pump out and Clean After Shutdown 5000 litres max
21 NPS Main fuel oil tank Pump out and Clean After Shutdown 250000 litres max lt50000 litres
22 PPS fuel oil tank Pump out and Clean After Shutdown lt10000 litres
23 fuel oil Pipe from delivery point to NPS and
PPPS service tanks clean out line After Shutdown
Unkown
24 fuel oil Pipe from PPS service tank to PPS LP
and HP oilheater and return line Clean out line After Shutdown
Unkown
25 PPS fuel oil lp heater X 2 Clean out heater After Shutdown Unkown
26 PPS fuel oil hp heater X 2 Clean out heater After Shutdown Unkown
27 PPS fuel oil lines to burner and back to heaters clean out line After Shutdown Unkown
28 NPS fuel oil heaters x 2 Clean out heater After Shutdown Unkown
29
NPS fuel oil lines to transfer pumps service
pumps lines to burners and back to main oil
tank NPS unit 1 and 2
Clean out lines After Shutdown
Unkown
Oils
30 NPS Turbine oils from unit 1 and 2 Pump out and dispose After Shutdown 32860 x 2
31 NPS unit turbine oil tanks and oil conditioners clean out After Shutdown
32 NPS turbine oil transfer lines and storage tank clean out After Shutdown
33 NPS mills x 12 ground floor collect together on shut down After shut down 1800 x 12
34 NPS Primary and secondary air fans above
ground x 2 Pump out and dispose
After Shutdown 770 x 4
35 NPS Primary air and secondary air heaters lube
oil X 2 - above ground level Pump out and dispose
After Shutdown 425 X 4
36 NPS Primary air and secondary air heaters
gearbox oil X 2 - above ground level Pump out and dispose After Shutdown 80 x 4
37 NPS Boiler Feed pumps grbx tank amp cooler X 4 Pump out and dispose After Shutdown 2800 x 4
38 NPS Deasher x 2 hydraulic oil Pump out and dispose After Shutdown 60 x 2
39 NPS Coal line ploughs x 2 Pump out and dispose After Shutdown 450 X 2
40 NPS ID fans x 4 Pump out and dispose After Shutdown 770 x 4
41 NPS GR fans x 2 Pump out and dispose After Shutdown 500 x 2
42
NPS Conveyer gearboxfluid drives 1(x2) 2(x2)
3 7(x2) 9(2)11(x2) - above and below ground
level
Pump out and dispose
After Shutdown
130 to 372 mainly in 150litre
range
43 NPS compressors x 3 Pump out and dispose After Shutdown 100 x 3
44 NPS Cat generators x 2 Pump out and dispose After Shutdown 200 x 2
45 Workshop storages at NPS collect remove from site and dispose After Shutdown y
46 Stores Shed oils and grease at NPS remove from site and dispose After Shutdown lots
47 waste oil collection area at NPS remove from site and dispose After Shutdown 12000 + litres
Transformers oils
48 NPS transformer - 2 x stepup Fuji Remove oil late june 2x 53000litre
49 NPS transformer - 2 x unit Wilson Remove oil late june 2 x 13000 l
50 NPS transformer - 2 x station tyree Remove oil late june 26000
51 Fuel oil unloading Remove oil late june 600
52 Town water Remove oil late june 600
53 Spare step up at NPS Remove oil late june 50000
54 PPS PPS Met vickers step up x 4 Remove oil late june 4 x 69000
55 PPS Ferranti house Remove oil late june 36000
56 PPS Unit Remove oil late june 4 x 4000
57 PPS Aux Remove oil late june 4 x 700
58 PPS GP Remove oil late june 1400
59 PPS ASH Remove oil late june 1400
60 PPS coal line starter Remove oil late june 2100
61 Spare unit at PPS Remove oil late june 1300
Batteries
total 565900 litres
62 Various NiCad Lithium NiMetal hydride etc at N remove from site and dispose After shut down Unknown
63 Lead acid in disposal area at NPS remove from site and dispose After shut down Unknown
64 NPS Battery room batteries remove from battery room and put on pallet (outside) late june Unknown
65 NPS Battery room Batteries Remove from site late june Unknown
Mercury
66 Globes and mamometers etc at NPS remove from site and dispose After shutdown Unknown
Greases and permalubes
67 Workshop and stores at NPS remove from site and dispose After shutdown Unknown
Coolant
68 Cat diesels NPS Pump out and dispose late june 100 litre
69 PPS fire diesel pumps Pump out and dispose late june 100 litre
Appendix F
D I
I
McMAHON SERVICES a allestrin Mi=iMMi
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
JSEA Number AD 010
Project and Organisation Details
Project Site Port Augusta Power Station Project Manager Ross Fitzgerald Sign Phone 0439 034 900
Title CARTING MATERIAL FROM BORROW PIT CARTING ASH FROM
DISCHARGE LEVYrsquoS TO DEMO PLANT SITE Site Supervisor
Mick Oster Sign Phone
0400 923 758
Job Task Excavation of material from borrow pit or ash from discharge levyrsquo carting
material to demo plant site driving dump trucks on road way to demo site
Site Safety Advisor Louis Kokkinos Sign Phone 0409 222 087 1
Principal Contractor Flinders Power
Job Number 5201750 JSEASWMS Creation 10 Revision Number 1 Has a Project Risk Assessment Register been Developed for the Project
Implement the PRAR control measures and place into this JSEASWMS
Legislative Compliance Review Information referenced during the JSEA Planning ndash Record applicable document reference number and name below
Legislation Codes of Practice Standards Emergency Plan Procedures SWIrsquos Engineering Work Cover SDS Other
WHS Act 2012
WHS Regulations 2012
CoP Excavations Cop Mobile Plant
Project Emergency Plan
SWI 0400 Plant and equipment
SWI 0100 Manual handling
SWI 0327 Selection of Hand
Protection
Traffic mngmt amp Site movement of plant Environmental protection Act 1993 ndash EPA license 13006
High Risk Work Structural Collapse ChemicalFuelRefrigerant Lines Work in Tunnel Explosives
Fall from Heights gt 3m Demolition of Structures Energised Electrical Installations Mobile Plant Work Involving Diving
Disturbance of Asbestos Pressurised Gas Pipes Mains Contaminated Flammable Atmosphere Traffic Tilt-upPrecast Concrete
Excavation gt15m Telecommunication Towers Extremes of Artificial Temperature Confined Spaces Risk of Drowning
Qualifications Licenses Plant Equipment
LE Excavator ST Service Truck HS Dump Truck HR Truck Excavator Moxy truck Fuel Trailer and Service Truck Water cart
Permit Tick Required
Asbestos Daily Diary (F062)
Confined Space (F603)
Demolition (F285)
Excavation Penetration (F636)
Excavation Entry (F166)
Hot Work (F630)
Lifting Operation - Lift (F189)
Working at Heights (F676)
PPE Tick Required
Important
(1) Persons within 10m of noisy plantprocess must wear Hearing PPE
(2) Hand protection must be selected via SWI327 - manual tasks
(3) Double eye protection to be worn when grinding
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5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin Mi=iMMi
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Potential Hazards This list may not identify all potential hazards present Visit the job site to ensure all hazards are identified and implement appropriate control measures in the JSEASWMS
Fire Ignition Sources
Will hot work be conducted Implement Fire prevention strategies
(Complete the Permit)
Refer to SWI344-Completing a Hot Work Permit Standard S023-Hot Work
Permit S002-Managing Risk of Risk in Fire Ban Seasons
Hazardous Substances Will work task involve contact with any Hazardous Substances
Refer to the SDS and consider specialised PPE precautions
Refer to SWI099-Accessing SDS SWI123-Handling Hazardous Subs
Environmental Impact- Vibration Noise Will vibration or noise emission extend beyond the project perimeter
Is vibration monitoring from demolition process especially when working near
heritage type buildings (Check the PRAR - F224)
Refer to SWI147-Environmental Management - Noise amp Vibration Control
Hazardous Manual Task
Will the worker be lifting moving objects or material
Workers to select controls measure based upon HIRAC
Correct lifting techniques Workers to stretch before and during task
Refer to SWI100-Hazardous Manual Tasks SWI102-Stretching Techniques
Services Will service isolation disconnection for plantequipmentinfrastructure
Any overheadunderground services within work area
Refer to SWI704-Service Isolation - Lock out Tag Out
Environmental Impact- Decontamination of Plant Equipment Will Plant Equipment and PPE require decontamination at the end of each
day and or when exposed equipmentplant is to leave the
asbestoscontaminated area
Refer to SWI147-Environmental Management - Noise amp Vibration Control
Excavations
Does the task require an excavation to be dug
Check for services prior to excavation (Complete the Permit)
Refer to Standard S053 - High Risk Construction Activity- Excavations
Emergency Preparedness Establish an emergency plan for the task
Refer to SWI082-Emergency Planning for Project Sites
Environmental Impact - Dust Will the task generate dust or is there a requirement for disposal of hazardous
waste
Refer to SWI148-Environmental Management - Dust Control
Working at Heights amp Falling Objects
Will the task require workers to work at height or around open
penetrations voids Are they trained to perform the task
Delineate areas where workers amp others may pass (Complete the Permit)
Refer to SWI 0085 - Prevention of Falls - Planning
Plant Machinery amp Equipment Will the plant work area be delineated away from other works
Is the operator ticketed licensed for this type of equipment plant
Refer to Standard S055 - HRCA - Safe Work Zone - Traffic Management SWI-
026-TicketLicencesCompetencies to Perform Work
Environmental Impact - Haz Substance Storage Spills Is there potential to release pollutants to drainrsquos marine waterways ground
atmosphere
Consider if any potential spill sources exist at the work area
Consider the need for bunds drip trays spill blankets absorption etc
Refer to SWI149-Environmental Management - Soil Erosion Drainage Management
Slip amp Trip Hazards
Will the task produce potential slip and or trip hazard (Material
Equipment)
Implement housekeeping strategies
Lifting Operations (Crane Lifts) Consider if work task involves crane lifts
Ensure a lift Permit has been conducted (Complete the Permit)
Refer to Lifting Operation - Lift Permit (F189)
Environmental Impact - Waste Disposal Will the task create prescribed waste requiring special disposal
Refer to SWI152-Environmental Management - Waste and Recycling
Task Security Nearby Works
Will barriers delineation be required to exclude personnel or vehicles
from the work area
Refer to Standard S051 - HRCA - Safe Work Zone - Site Security
Cuts and Abrasion Is there a risk of cuts abrasion
Consider task separation or adequacy of PPE
Refer to SWI327-Selection of Hand Protection
Environmental Impact - Cultural Heritage Could the task uncover indigenous or European artefacts
Could the task impact on heritage buildings structures
Refer to SWI154- Managing Cultural Heritage Protocol Uncovering Artefacts
Customer and Surrounding Property
Consider the potential risk to neighboursrsquo property
Consider potential damage to customer property nearby
Refer to Standard S051 - HRCA - Safe Work Zone - Site Security
Traffic Management Consider how construction traffic will access and egress the workplace
in a safe manner
Refer to Standard S055 - HRCA - Safe Work Zone - Traffic Management
Asbestos Consider if personnel may be exposed to asbestos during this task
If unsure check the Asbestos Register
Refer to SWI 0349- Planning and Asbestos Removal Task SWI 0233 Friable
Asbestos Personal Decontamination Process
Weather Conditions Working Outdoors
Does the weather pose a risk to a workerrsquos health Safety or the environment Consider the ambient conditions associated hazards Consider precautions to prevent exposure to
heatcold
Noise Will the work create higher noise levels Consider the need for hearing protection in the work area
If hearing PPE is deemed as required then all workers in a 10-metre radius (minimum) of the noise source must wear hearing PPE
IF PRINTED -Page 2 of 9 104 Exploration Dr Karratha UNCONTROLLED 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
-
-
-
-
the hazards
C V 0 Ugt ts
Level2 e ~
Ugt 0 Substi tute the hazard with someth ing co
Q) b safer E J e co Isolate the hazard from people Ugt
C -0 8 C Reduce the risks through engineering co
s contro ls a 1ij ~ Q)
V c s a _]
ai ai Level3 0 gt Q)
_J
Reduce exposure to the hazard
V using administrative actions
V Use personal protective equipment
LOWEST L E A S T
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Hazard Analysis and Control Worksheet
Step 1 Consequences (Severity)
1 Insignificant bull Cause a near miss needs to be reported
bull Limited impact to a local area but no long-term effects
2 Low bull Injury requiring First Aid treatment and or short term discomfort
bull Localised short to medium term impact to the environment
3 Moderate
bull Potential for injury resulting in medical attention
bull Localised medium to long term impact to the environment
bull Damage to plant property
4 Major bull Serious injury Long term disability
bull Widespread or off-site release medium to long term impact
bull Major financial loss damage to plant Loss of production capability
5 Extreme
bull Potential to be fatal Permanent disability
bull Release off-site with detrimental widespread irreparable environmental damage
bull Destruction of property or plant Huge financial loss
Step 4 Action Plan
Low Minimal risk monitor where work changes
Moderate Some action may be required
Supervisor to determine and monitor
High Activity Must be reviewed by Project Manager and have additional risk controls built into the SWMS and work procedure
Extreme
Activity to be re-planned andor re-designed
Must reduce risk immediately ndash highest priority Work is not commencing until appropriate controls are in place
Hierarchical of Controls
Control measures must be ranked from the highest level of protection and reliability to the lowest This ranking is known as the hierarchy of control The higher order controls must always be considered first
If residual risks are ranked as lsquoHIGHrsquo the team shall determine the adequacy of controls and consider further risk reduction strategies (Refer to step 4 - Action Plan)
Step 2 Potential (Likelihood)
A Certain to Occur
Expected to occur in most circumstances
B Likely Will probably occur in most circumstances
C Possible Might occur at some time
D Unlikely Could occur at some time
E Rare May occur only in exceptional circumstances
Step 3 Risk Matrix Consequence
Insignificant Low Moderate Major Extreme Level 1 Level 2 Level 3 Level 4 Level 5
Lik
eli
ho
od
Certain to Occur (A) H H E E E
Likely (B) M H H E E
Moderate (C) L M H E E
Unlikely (D) L L M H E
Rare (E) L L M M H
IF PRINTED -Page 3 of 9 104 Exploration Dr Karratha UNCONTROLLED 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
bull
-iW=iMdbullMi McMAHON q a allestrin SERVICES 1ntract ft_ -_ __
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Job Safety Environmental Analysis (JSEA) Safe Work Method Statement
Step Process Steps Potential Hazards Inherent Hazard Control Measures Residual No List the steps needed to do the Against each step list potential hazards that Risk For each hazard identify control measures to eliminate or minimise the risk of Risk Action by
job in the sequence to be done could cause injury when the jobrsquos done Rating injury (hierarchy of controls) Rating (Print name of person)
1 Pre-start talks with Michael Atkinson Ben Knoop Louis Kokkinos and Mick Oster to determine dumping area within live demo plant
Miss communication between civil and demo team causing work crew overlap hazards such as collision with demo plant personnel or LV
H Consultation in site office dumping area in live demo plant to correctly locate dumping zone Visually inspect demo plant and personnel near dumping zone Identify the need to use 2-way communications on channel 27
L Michael Atkinson
Louis Kokkinos
Mick Oster
Ben Knoop
2 Establish one way hauling routes for dump truck drivers ndash Pre-drive route with Mick Oster Louis Kokkinos and Ben Knoop
Interaction or collision with other plant people or vehicles in the area or on route Demo plant LV or personnel unclear or unaware of one-way route
H Pre-drive route and communicate traffic management plan to dump truck drivers Ensure dump truck drivers understand one-way route by providing them with guided tour and escort Provide map of route to drivers Drivers must adhere to traffic management plan Drivers must not drive on other road ways within live demo plant Dump truck drivers must use 2-way radio to announce arrival and departure at live demo plant on haul roads and dumping area
L All personnel signed onto this document
Dump truck drivers speeding on haul E All dump truck drivers must not exceed MAX 20 Kmh in demo area H All personnel signed roads or making contact with overhead at all times Dump truck drivers must assume that over lapping demo onto this document hazards such as light poles or electrical work crew will not expect them to be in their work zone and should lines prepare to stop or give way at any time Dump truck drivers must
not raise tubbed or unload in any area other than designated areas as per attached map
Demo crew not aware of us in their work H Demo supervisor must brief work crew of civil and demo crew L Demo crew and zone or one-way haul roadsroute - interactions and provide work crew and plant operators with map of team Interaction of heavy light vehicle resulting civildump truck hauling roads and one-way areas Demo work crew in accident causing injury plant damage plant LVs and personnel must avoid civil haul road areas if
practicable to do so
3 Civil work crew within demo site
High risk works associated with movements of mobile plant contact with plant and personnel crush injuryrsquos or the potential for death
E Dump truck operators must not exit cabins in active demolition areas unless itrsquos for an emergency or vehicle has broken down Drivers must wear hard hats and safety glasses if in the active demolition site 2-way radio to be used to communicate emergency situations or any requirements to exit truck cabins Existing muster points apply for civil team
M All personnel signed onto this document
4 Suppressing dust Dust arising from borrow pit activities hauling on roads or carting or excavating levy ash creating health environmental damage or concerns
H Implementation of 3 level Trigger Action Response Plan must be utilised when monitoring dust levels during ongoing works Use of water cart on haul roads and any other areas where dust suppression is required
L All personnel signed onto this document including water cart operator
IF PRINTED -Page 4 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Step No
Process Steps List the steps needed to do the job in the sequence to be done
Potential Hazards Against each step list potential hazards that
could cause injury when the jobrsquos done
Inherent Risk
Rating
Hazard Control Measures For each hazard identify control measures to eliminate or minimise the risk of
injury (hierarchy of controls)
Residual Risk
Rating Action by
(Print name of person)
Ash material drying out causing dust to become airborne and leave the site boundary causing environmental harm
H Constant monitoring of area to ensure material is wet down and suppressed Capping material to be placed on ash to prevent becoming airborne and suppressed with water as necessary to prevent dust becoming fugitive Direct dumping and immediate spreading to avoid stockpiling of ash causing unnecessary dust
L All personnel signed onto this document including water cart operator
5 Dumping ash material in PPS A station basement area Excavating ash from levee
Dumping on uneven surface causing risk of tray tipping over
H No dumping on uneven surface unless the use of spotter and the cab is not articulated Always tip with the cab and tray in line to avoid tipping tray Assess ground conditions and drive to conditions at all times
L All personnel signed onto this document
Slumping of ramp levee and stockpile causing material to give way
H Operators to check condition of ramp levee and stockpile to assess area for cracking slumping and soft spots that could cause machine to become unstable
L All personnel signed onto this document
Tipping material without a tip head to back onto
H Operators are to follow instructions from the dozer excavator operator and are to tip short with a spotter so the dozer can push the material Dump truck operators must not tip short without the use of the spotter to guide into position via verbal or hand signals
L All personnel signed onto this document
Tipping over basement edge without tip head causing potential drop of machine and injury to personnel
H Operators to use established ramp at south end of basement as tip location to eliminate tipping over live edge Operators are to tip short with a spotter so the dozer can push the material into basement
L All personnel signed onto this document
IF PRINTED -Page 5 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
I I I I I I
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
Step No
Process Steps List the steps needed to do the job in the sequence to be done
Potential Hazards Against each step list potential hazards that
could cause injury when the jobrsquos done
Inherent Risk
Rating
Hazard Control Measures For each hazard identify control measures to eliminate or minimise the risk of
injury (hierarchy of controls)
Residual Risk
Rating Action by
(Print name of person)
IF PRINTED -Page 6 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
D
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
How to Complete the JSEASWMS Process
1 When developing a JSEASWMS refer to the applicable Legislation Code of Practice and Company Standards 4 Each of the hazards identified must be risk rated hazard control measures defined precautions and
and Safe Work Instructions (Documents referenced in this JSEASWMS must be recorded on page one) equipment must be identified to reduce the risk
5 Responsibilities are allocated to each control measure defined in the JSEASWMS 2 The job is to be broken up into individual process steps 6 All workers involved in the task must review the document and it must be accepted by workers signing 3 For each step the potential hazards are identified
this JSEASWMS form
NOTE This is a legally binding document to which all workers must adhere
Approval
I the undersigned Supervisor confirm that I have checked all qualifications provided and verify that they are applicable and current I have also ensured that all inductions have taken place and that all tools and equipment are properly maintained and safe to use I have issued all relevant permits and have ensured to the best of my ability that the work area is safe and that the work will not damage any property or injure any persons
Supervisor Name Supervisor Signature Date 9th August 2017
Development amp Review
Initiators of JSEArsquos are responsible for consulting with supervisors engineers or other persons directly in charge of the work and any other personnel involved in the execution of the task (as appropriate) for input into the JSEASWMS during the development and review stages
Other persons may be consulted for technical advice or review of the JSEA to ensure that the proposed measures are effective and workable (Record names below)
The JSEASWMS shall be reviewed
(1) At the commencement of a new task (2) If a task changes (3) If a hazard been identified (4) At the JSEASWMS three-month anniversary
Developed Consulted By Reviewed By
Date 7th August 2017 Date 8th August 2017 Reason for review Change of TMP map and inclusion of TARP
Name
Name
Louis Kokkinos
Ben Knoop
Position
Position
Site Safety Advisor
Site Civil Engineer
Name
Name
Louis Kokkinos Position
Position
Site Safety Advisor Added step 4
Changed TMP map on last page
Name Mick Oster Position Senior Site Supervisor Name Position
Name Jamie Kirk Position Site Safety Advisor DEMO Name Position
IF PRINTED -Page 7 of 9 104 Exploration Dr Karratha UNCONTROLLED 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
JSEASWMS Sign off and Acceptance of Proposed Work Method and Associated Responsibilities
bull I the undersigned confirm that I have been consulted regarding the above JSEASWMS and that its content is clearly understood
bull I also confirm that my required qualification(s) etc to undertake this activity isare current and that I am competent to complete the work safely and without risk to my own or the health and safety of others
bull I clearly understand that the control(s) in this JSEASWMS must be applied as documented otherwise work is to cease immediately and I will ensure that the work area is made safe as far as is reasonably practicable
No Surname First Name Classification Employed by Signature Date
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20 bull
bull ASH D AM
bull ENTRANC E R OAD TO AUGUSTA POWER STATION
IF PRINTED -Page 8 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
McMAHON SERVICES a allestrin
Form Job Safety Environmental Analysis (JSEA) Safe Work Method Statement F 230
V120 NOV 2016 CC Project File
bull
bull BORROW PIT
bull M
M
dg h
fff
fff
IF PRINTED -Page 9 of 9 104 Exploration Dr Karratha 26 Duncan Rd Dry Creek SA 5094 - ABN (All 26 Duncan Rd Dry Creek SA 26 Duncan Rd Dry Creek SA UNCONTROLLED
5094 ABN 32 164 014 368 5094 ABN 97 114 575 932 WA 6714 75 097 072 565 States) 75 097 072 565 (NT) 52 109 241 885
Appendix G
Power
Augusta Power Stations
Dust Management Plan
Demolition and Site Rehabilitation
Flinders Power May 2018
Title Names Signatures Date
Approval Facility Manager APS
Approval Program Manager ndash Flinders Sites
Document History
Rev Date Amended by Description of Changes
Draft Initial Draft Version
Rev 1 24082016 Updated and changed to cover Make ndashSafe Period
Rev 2 09092016 Updated and changed to cover Demolition Period
Rev 3 05102016 EPA recommendations and corrections incorporated
Rev 4 05102016 Ash Storage Area dust management options modified
Rev 5 05112016 Final version incorporating EPA feedback
Rev 6 01022017 Revised following dust event of 1st and 2nd January 2017
Rev 7 03032017 Revised to address EPA feedback of 20th February 2017
Rev 8 09082017 Revised to address excavation transport and use of ash for backfill
Rev 9 08122017 Revised to incorporate changes as per EPA letter of 6 December 2017
Rev 10 03012018 Revised to address proactive watering of the former coal stockpile
Rev 11 25052018 Revised to address the capping of the former coal stockpile area
Rev 12 15618 Revised to add seeding of the former coal stockpile area
Printed copies are uncontrolled Please ensure you are referring to the most current version 1
AindersPower
Contents 1 Introduction amp Purpose 3
2 Background 4
3 Setting 5
Stockpile 5
Ash Storage Area 5
Coal Conveyor System 6
Coal Storage Bins 6
Roadways 7
Demolition Activities 7
Utilities Available During Demolition 8
5 Environmental Conditions 14
EPA Notification of Process Changes 14
Licence Conditions 14
Ambient Dust Monitoring ndash TSP amp PM10 17
Speciation 20
6 Dust Management Plan (DMP) 21
Plan Stakeholders - Roles and Responsibilities 21
Implementation and Control Actions 23
Table 1 Aspect and Control Action 1 Coal Stockpile Operations 24
Table 2 Aspects and Control Action 2 Ash Storage Area Management 26
Table 3 Aspects and Control Action 3 Coal Conveyor System and General Site 28
Table 4 Aspects and Control Action 4 Site Roads (General Conditions) 29
Table 5 Aspects and Control Action 5 Demolition Activities 30
7 Ash Storage Area ndash Dust Management 32
Whole of ASA Dust Suppression Treatment 32
Trigger Action Response Plan ndash Ash Storage Area 32
8 Former Coal Stockpile Areandash Dust Management 37
Trigger Action Response Plan ndashStockpile Revegetation 37
9 Dust Monitoring and Evaluation 39
10 Community and Stakeholder Engagement 40
101 Complaint Management 41
References 42
Appendices 43
Printed copies are uncontrolled Please ensure you are referring to the most current version 2
AindersPower
1 Introduction amp Purpose Flinders Power operates the Flinders assets which comprise the Northern and Playford Power Stations in Port Augusta (known collectively as the lsquoAugusta Power Stationsrsquo (APS)) as well as the Leigh Creek Coal Mine Flinders Power also formerly maintained a dedicated rail line between Leigh Creek and Port Augusta
Flinders Power is strongly committed to sound environmental management as demonstrated within the board-endorsed Environment amp Community Policy The Policy states a commitment to partnering with the communities in which Flinders Power operates and a focus on continual improvement of environmental performance
The nature of the operation if poorly managed has the potential to create fugitive dust emissions which may adversely impact on the amenity of the local community Therefore the objectives of dust control are to
1 Minimise and control the impact of Flinders Power closure activities on air quality and emission of dust from site operations
2 To ensure compliance with EPA Licence requirements
3 Maintain environmental amenity and a strong relationship with the local community and regulatory authorities
To achieve these objectives a Dust Management Plan (DMP) has been formed The objectives of the DMP are to
bull Nominate potential sources of dust emissions
bull Describe methods and responsibilities for dust management controls to minimise the potential for impacts to the environment
bull Clearly define the responsibilities and actions required to respond to environmental incidents
bull Outline the methods to communicate and engage with the local community in relation to dust management and
bull Outline the monitoring and reporting arrangements to ensure ongoing compliance with the DMP
Scope This plan applies to activities covered under
bull EPA Licence 13006 (Northern amp Playford Power Stations)
This document is also part of the site Environmental Closure and Post Closure Plan where specific activities and responsibilities for performing dust management measures are assigned to the appropriate parties During the site demolition process Flinders Power has specific responsibility for areas not covered by the plant demolition project These areas the Ash Storage Area and the Coal Stockpile Pad are subject to separate rehabilitation and revegetation projects covered in the Environmental Closure and Post Closure Plan
Dust management activities involved with the decommissioning and demolition of the plant and structures on site are covered in the demolition plans developed under the Project Alliance Agreement
Printed copies are uncontrolled Please ensure you are referring to the most current version 3
AindersPower
2 Background
The Playford Power station (PPS) ceased operation in April 2012 The Northern Power Station (NPS) ceased operation on the 9th May 2016
NPS and PPS utilised a supply of coal delivered daily by train from the Leigh Creek Coalfields After combustion in the boilers ash was collected from the bottom of the boiler mixed into a seawater slurry and transferred to the Ash Storage Area by pipeline Fly ash from the exhaust gas was captured by electrostatic precipitators at NPS bag house filters at PPS and then sold to secondary users with the excess transferred to the Ash Storage Area
The Ash Storage Area was continually filled with deposited ash and sea water slurry from the boilers The nature of this mixture allowed the surface to form a salt crust when it dried out - due to the ever-changing location of the deposition field creating high areas of ash During heavy rain this surface crust was occasionally damaged allowing winds to disturb the ash and potentially blow it off site
There was also a flooding regime for the Ash Storage Area whereby internal levees were built up filled with an ashwater mixture and then quickly released to allow for a large portion of the surface of the Ash Storage Area to be flooded so that a salt crust could re-form on top This management strategy changed in October 2016 due to the erosive effects of utilising a pure seawater flooding technique (as opposed to an ash and seawater slurry) and the increased risks associated with dust generation In November 2016 the 212Ha Ash Storage was sealed utilising a dust suppressant applied by air and land
The coal stockpile at Augusta Power Stations was designed as an emergency supply should mine site or railway operations be impacted Historically the coal stockpile has been used on only intermittent occasions However during the last few years of operation due to increased variability in load profile in response to increased volatility in the SA energy market the stockpile was utilised as a dynamic stockpile The movement of coal on the stockpile became a frequent activity to meet strategic stockpiling or generation output needs as required The increased use of the stockpile increased the risk of fugitive dust emissions
To reduce these impacts during operation there were established Operating Instructions relating to the methods of stockpiling and reclaiming coal from the stockpile the use of water cannons for wetting down the stockpile the use of a water truck for applying dust suppressant to the surface of the stockpile water and a description of weather conditions for operations on the stockpile
Whilst these actions were effective in reducing dust emissions from the stockpile and Ash Storage Area a change in strategy continued monitoring vigilance and innovation is required to maintain control over dust emissions during the demolition and site rehabilitation phase
Other identified sources of minor fugitive dust during this phase include roadways and during demolition of coal and ash handling plant
Printed copies are uncontrolled Please ensure you are referring to the most current version 4
AindersPower
3 Setting
The township of Port Augusta is located approximately 300km north of Adelaide on the northern tip of Spencer Gulf and has a Dry Arid Low Latitudes climate
Figure 2 demonstrates the seasonal wind patterns for the region including wind direction and wind speed The charts indicate that strong regular southerlies are dominant during the summer season Port Augusta township especially the suburb of Willsden is potentially affected by fugitive coal dust and ash for most of the year except during winter when the dominant wind direction changes from southerlies to northerlies
Stockpile
The distance between the coal stockpile and the closest residents in Port Augusta to the north is approximately 35km (refer to Figure 1 below)
Coal formerly arrived from the Leigh Creek mine in open rail wagons and was bottom dumped via the rail car dumper on the rail line near the coal stockpile It was then conveyed to either the main coal storage bins for immediate use or to the stockpile for storage
Maintaining the moisture level of the coal to a point where surface dust mobilisation is decreased from the stockpile was achieved by the use of water cannons on the stockpile
The coal stockpile has been decommissioned and as of September 2016 the pad was being rehabilitated and revegetated A sprinkler system has been established over the surface area to promote vegetation establishment and control dust
Ash Storage Area
Waste ash from the boilers and the electrostatic precipitators was formerly mixed with seawater and piped to the Ash Storage Area
Deposited ash formed a salt crust due to the evaporation of water from the mix which stopped the ash from being mobilised and entrained by wind into the airshed
The levees on the edges of the Ash Storage Area were periodically raised to allow for a greater ash holding capacity
During the operational period ash could enter the airshed during windy periods when the surface crust was damaged by heavy rain and after heavy machinery working on the ash dam has broken up the surface A map of the Ash Storage Area in shown in Figure 3 with flood coffer dams numbered and the direction of floodwater flow during surface flooding events indicated
Following NPS closure a number of measures were taken to control dust lift-off from the Ash Storage Area including the installation of new pipework to ensure continued seawater supply the construction of new coffer dams and the use of a temporary pump and pipework from Playford Periodic filling of the coffer dams and breaching enabled seawater to flow out and re-establish a crust However this continued operation was progressively causing erosion to the surface of the dam and the banks of the coffer dams and certain areas such as the central discharge point were unable to be reached by flooding In August 2016 a 15Ha area adjacent the original slurry discharge point was sealed with dust suppressant applied by cropduster This treatment was successful in containing dust from this area Continued flooding to the east and west of this location caused
Printed copies are uncontrolled Please ensure you are referring to the most current version 5
AindersPower
further damage and in October 2016 it was decided to change strategy from seawater flooding to sealing the entire dam surface with dust suppressant
These measures were intended to achieve short-term dust control particularly during summer 201617 while the long-term rehabilitation plans were being implemented These actions are referenced in Implementation and Control Action 2
In late December 2016 a major storm event impacted the dust suppressant seal causing areas of ash to be re-exposed On the 1st and 2nd January 2017 a dust event occurred whereby windblown dust was generated from the surface of the dam
Reapplication of the dust suppressant was conducted throughout January 2017 with a seal re-established by 25th January 2017 Commencement of earthworks also occurred during this period with the opening of an adjacent borrow pit and the commencement of construction of topsoil lsquofingersrsquo across the surface of the dam
At the time of updating the Dust Management Plan approximately 180ha of the Ash Storage Area had been covered with soil with the completion of five east-west access fingers Seeding had occurred over 140ha of the site
Coal Conveyor System
The coal conveyor system begins at the train unloading facility at NPS Coal was directed either to the coal storage bins or the coal stockpile by the conveyor system Coal from the storage bins was conveyed to PPS or NPS as required The coal conveyors are enclosed and the transfer points are inside a number of enclosed towers to reduce dust emissions
Fugitive coal dust was formerly washed down daily from the inside of the conveyor enclosures and the transfer towers The effluent was captured in sumps underneath the towers where the coal dust sediment was collected and returned to the stockpile area
Following closure clean-out of the conveyor lines and transfer towers occurred with all accessible coal washed to the ground where it could be contained and disposed These control actions are described in the APS Environmental Closure and Post-Closure Plan
Short term coal dust management measures are being applied during the demolition and rehabilitation phase This is referenced in Implementation and Control Action 3 amp 5
Coal Storage Bins
There are three Coal Storage Bins at NPS with a capacity of 18000 tonnes located to the west of the stockpile These are enclosed with a tripper on top conveyors and ploughs on the bottom conveyors Both of these are enclosed to reduce dust emissions
Coal bins at Playford were decommissioned and emptied in 2012
Following closure clean-out of the NPS bins occurred with all accessible coal washed to the ground where it could be contained and disposed These control actions are described in the APS Environmental Closure and Post-Closure Plan
Short term coal dust management measures are being applied during demolition of the bins This is referenced in Implementation and Control Actions 3 amp 5
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AindersPower
Roadways
There are a number of roadways sealed and unsealed around the site where dust settles and aggregates Road vehicle speeds are kept to a 20 kmh limit on most roads with two roads on site having a 40kmh limit for both safety and environmental considerations
The Ash Storage Area is surrounded by a levee system allowing vehicle access on top Windblown ash can settle on the roadways and this is periodically sprayed with dust suppression chemical and wet down with a water truck to reduce dust lift off
Dust control measures used pre-closure are continuing during the closure process This is referenced in Implementation and Control Action 4
Demolition Activities
Flinders Power (FP) and McMahon Services Australia formed an Project Alliance Agreement in May 2016 to facilitate the successful delivery of the site demolition program
The Alliance is a unified team to jointly manage the planning asset salvage and decommissioning works of the Augusta Power Stations The successful delivery of this project relies on the combined efforts of both FP and McMahon Services and the pooling of knowledge experience and expertise under the Alliance is the best contractual means to deliver the complex closure program The Alliance will see the partnership of both the Owner Party (FP) and Non-Owner Party (McMahon Services) to create a single team working unanimously collaboratively and cooperatively and acting in good faith to make best-for-project decisions
FP have invaluable knowledge and expertise about the Augusta Power Stations This knowledge is integral to ensure the safety of all personnel and management of environmental risks McMahon Services has over 25 years of decommissioning experience conducting high risk demolition and hazardous materials removal works at sites across Australia McMahon Services are a licenced entity by the SA EPA and are accredited to ISO 14001
Each module of works within the delivery phase is defined by a unique scope of work with Flinders reserving the right to let independent work scopes
Potential dust generating activates identified in the Project Risk Assessment Register include
bull Stack felling
bull Bin felling
bull General demolition activities
bull General civil works and
bull General site traffic
Dust management measures are being incorporated into the demolition control plans as referenced in the APS Environmental Closure and Post Closure Plan and Alliance Demolition Plans
Printed copies are uncontrolled Please ensure you are referring to the most current version 7
AindersPower
Utilities Available During Demolition
The majority of electricity used by major plant at the station was formerly provided by onsite generation Following closure there remain a number of small electricity supplies to the site mainly into offices and workshops though the main infrastructure utilised for dust control is provided by large standalone portable generators A number of water pumps are used around the Ash Storage Area for seepage water and a portable diesel water pump can be deployed as required
Seawater has been previously pumped from the cooling water inlet screens of NPS to the Ash Storage Area via an agreement with a third party to access power supplies Additional pipework and outlets were installed on the southern side of the Ash Storage Area for targeted seawater flooding Additional seawater was also obtained from the Playford Station seawater inlet using a portable diesel water pump for flooding the south-western corner of the Ash Storage Area
Mains water at high pressure off the SA Water mains pipeline is also available on site and is utilised for stockpile revegetation
Printed copies are uncontrolled Please ensure you are referring to the most current version 8
I
bull ~ - __ i ----
middot1 ------ --bull- __ _
~ --I
i 1 i
~--~ V i ~ I
yen 1
I i I l
7 - -+ i i
middot1
i
I l i jL-________________ _ 0 )OOlaquor0ffi o~middot-=------ Naa-est RB51denDaJ Receplen
FIGURE 1 0 us1 Monilltribulli Loootion
AindersPower
Figure 1 Location of the Port Augusta and Stirling North Communities in relation to the APS Site and Coal Stockpile (after Aurecon 2010)
Printed copies are uncontrolled Please ensure you are referring to the most current version 9
---
WW SPEED (mis)
bull gtbullIII
- 8 8 11 1 5 7 - U
D 3Cbull 67
D 21 - 3C
D o5bull 21
AindersPower
Wind shadow directions Port Augusta Lgt Stirling North y7
Figure 2 Seasonal Wind Profile
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~IRU LAKl
oms
RL
(
AindersPower
sJ RAHPn
-~
1 RAMP13
Figure 3 Ash Storage Area map showing numbered flood coffer dams and direction of floodwater flow during surface flooding events
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Fp RindtrsPower
4 Supporting Documentation
The following document map outlines the role of the Dust Management Plan in meeting compliance obligations
Governing Legislation
EPA Authorisations Plans Appendices amp Supporting Documents
Environmental Protection Act 1993
EPA Licence 13006
Condition 11 Dust Prevention
Condition 22 Complaints Register
Condition 23 Develop and Implement Closure and Post-Closure Plan
APS Dust Management Plan (this document)
FPP Incident Management System
Environmental Closure and Post Closure Plan ndash Augusta Power Stations (Rev10 25 May 2018)
Appendix A Ash Dam Interim Sealing ndash Proposal 7th November 2016
Appendix B Ash Dam Interim Sealing ndash Risk Assessment 2nd
January 2017
Appendix C Complaint Handling Procedure
Appendix D Fugitive Dust Trigger Action Response Plan (Rev6 3rd
January 2018)
Appendix E Ash Storage Area ndash Extreme Weather Monitoring amp Response Plan (3 March 2017)
App A ndash Detailed Risk Assessments
App B ndash NPS Make Safe Manual
App C ndash PPS Closure Manual
App D ndash Closure amp Care Project Plan
App E ndash Chemical amp Oil Management Plan AppE1 ndash Chemical Manifest amp Removal Scope
App F ndash Demolition Alliance Supporting Plans
App G - APS Dust Management Plan (this document)
Printed copies are uncontrolled Please ensure you are referring to the most current version 12
Fp RindtrsPower
App H ndash Project Risk Assessment Register
Condition 26 Generic Contingency Plan Augusta Power
Station Emergency Response Plan
Condition 27 Pollution Control Refer Ellipse Equipment Register Maintenance
Management System
Environmental Compliance Agreement (2000)
Section 1 Definitions Flinders Power and Interpretations APS Ash Storage
Area End of Life Plan Draft Cost Estimate (14th
February 2000)
Printed copies are uncontrolled Please ensure you are referring to the most current version 13
Fp RindtrsPower
5 Environmental Conditions
The Augusta Power Stations operate according to the Environment Protection Act 1993 (SA)
The EP Act 1993 states the principle of a ldquogeneral environmental dutyrdquo
Part 4mdashGeneral environmental duty 25mdashGeneral environmental duty (1) A person must not undertake an activity that pollutes or might pollute the environment unless the person takes all reasonable and practicable measures to prevent or minimise any resulting environmental harm
The operation of the coal handling and storage system is an authorised activity under an Environmental Authorisation (Licence) under Part 6 of the EP Act provided by the EPA
EPA Notification of Process Changes
According to the requirements of the Environment Protection Act 1993 and Licence Condition 42 the EPA must be notified when there is a proposed change to operating conditions that
bull May increase emissions or alter the nature of pollutants or waste or
bull May increase the risk of environmental harm or
bull Would relocate the point of discharge of pollution or waste
Further in accordance with section 83 of the Act the EPA must be notified when serious or material environmental harm is caused or threatened
FP commits to ensuring compliance with these obligations
Licence Conditions
The Northern and Playford EPA licence (13006) states specifically the activities for which APS undertakes
Licensed Activities
The Licensee(s)
-Flinders Power Holdings GmbH Flinders Labuan (No 1) Ltd Flinders Labuan (No 2) Ltd is (are) authorised to undertake the following activities of environmental significance under Schedule 1 Part A of the Environment Protection Act 1993 (the Act) subject to the conditions of licence set out in the attached pages
1(5)(a) Petroleum storage 2(1) Abrasive blasting 7(3)(C) Crushing grinding or milling works (rock ores or minerals) 7(5) Coal Handling amp storage 8(2)(a) Fuel burning coal or wood
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Fp RindtrsPower
8(7) Discharges to marine or inland waters (heat or antibiotic or chemical water treatments)
8(6a)(a) Desalination plant that discharges wastewater to the marine environment
Licence 13006 (issued 01 January 2015 and as amended 30 August 2017) contains the following condition relating to dust on site
S-9 Dust Prevention
The licensee must
bull Take all reasonable and practicable measures to prevent dust leaving the Premises bull Develop a Dust Management Plan to the satisfaction of the EPA and bull Implement the Dust Management Plan approved in writing by the EPA (or any revised
plan approved in writing by the EPA)
Accordingly Augusta Power Stations operates the former coal stockpile coal handling plant and the Ash Storage Area in such a manner to reduce its effects on the environment including the roads to and from the stockpile and the levees on the ash storage area
The following licence conditions relate to ambient air monitoring
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1 AMBIENT A IR MONITORING (U - 5741
Tlhe Licensee must
31 1 install and operate a continuous meteorological monitoring station al a location within lhe Premises appmved in writing by the EPA
3 1 2 oontinuousily monitor ambient PM1Cl concentrations using an Ecotech Eshysampler Particulate Monitor (or other comparable equipment) at llocatio111s within themiddot Premises approved in writing by the EPA
3 1 3 oontinuousily monitor ambient PM1Cl concentrations using an Ecotech Met One E-Bam Particulate Monitor (or other comparable equipment) at such locations as may be d esignated in writing by the EPA including locations at Lea Memoria l Oval in Port Augusta and at Stirling North
a provide rea l-lttime public access to the monitoring data collected pursuant to ihis clause
b rnotify the EPA in writing of a ny resul ts of monitoring underlaken pursuant to ihis clause w hich indicatemiddot an exceedance of a mbient PM10 concentrations of 50 m icrograms per cubic metre for a 24 hour average period Notification to the EPA must occur within 24 hours of the exceedanoe
c incilude in any notification given pursuant to this clause the actions taken in response to the exceedance in order to mitigatemiddot impacts of PM10 from the Premises on the community
3 1 4 assess and interpret the results of monitoring undertaken pursuanl to th is condit ion to inform the impl ementation of dust mitigation and mana gemenl measures lbased on site-specific trigger valu es set out in the approved Dust Management Plan dated 03 Mardh 2017 or any oobsequent version approved in writing by the EPA
3 1 5 submit to the EPA on a monthly basis a summary of monitoring results for each 24 hour average peniod of ambient PM10 co ncentrations
31 6 upon req uesl of an Authorised Officer provide results of any moniloring undertaken pursuant to ihis condition
NOTES
Condition appticalile to Flinders Power Licence 13006
Fp RindtrsPower
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2 AMBIENT MONITORING A ND REPORTING (U - 6601
The licensee must
321 continuously monilor ambient sulphur dioxide and ambient nilrogen di oxide at a location (or locations) within the Port Augusta township approved in writing by the EPA
322 monitor ambient particulate concentrations (TSP and PM10) using a highshyvolume ai r sampler to determine the 24 hour average at freque111cies and location (or locations) within the Port Augusta or Stirling North township approved in writing by the EPA
323 undertake an investigatio11 to determine the source of any exceede11ce(s ) a11d provide to the EPA the outcomes of lhe i11vestigation if followi11g levels are exceeded at any monitor ing location(s)
a Sulphur dioxide 571 micrograms per cubic metre (detenmi11ed as a one hour average)
b Nitroge11 Dioxide 246 micrograms per cubic metre (determined as a 011e 11our average) a11d
c Ambient particulate oonce11trations (PM10) SCI micrograms per cubic metre (detem1ined as a 24 hour average) and
324 nolify the EPA wilhin seven days of a11y su~ hur dioxide exceedence as measured at the monitoring location(s) referred to in sub-condition 1 and
325 notify themiddot EPA in writing of any results of monitoring undertaken pursua11t to sub-condition 2 which indicate an exceedance of ambient PM10 con centratior1s of SCI micrograms per cubic metre for a 24 hour average period Nolificatio11 to the EPA musl occur within 24 hours of the exceedance
a include in a11y notification given pursuant to this clause the actions taken in response to the exceedancemiddot in order to mitigate impacts of PM10 trom the Premises on the community
326 submil to the EPA on a mo11thly basis a summary of monitoring results for ambient particulate concentrations (TSP and PM10) ambient 11itrogen dioxidemiddot and ambient sulphur dioxide
Fp RindtrsPower
Ambient Dust Monitoring ndash TSP amp PM10
To monitor the ambient air dust levels across the community there are a number of High Volume Air Samplers (HVAS) at strategic locations in Port Augusta and Stirling North There are two types of HVAS a total suspended particulate (TSP) type which samples all of the dust in the air and another for particulate matter 10 microns and smaller in diameter (PM10)
The following sets out the agreed ambient monitoring arrangements (per EPA authorisation of 30 August 2017)
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( middot~
Stir ling North Real-Time PMlO Community Monitor Contingency PMlO High-Volume Monitor
Fp RindtrsPower
Sign in
Operational Monitors
- Three Ecotech E-Sampler Particulate (PM10) Monitors (lsquoProtinus 1000rsquo) have been installed as follows
o The South Operational Monitor located on the southern Ash Storage Area boundary
o The East Operational Monitor located on the eastern Ash Storage Area boundary
o The North Operational Monitor located on the northern boundary of the Polishing Pond at the closest point of site to Port Augusta residences
- The units record real-time data at 5-minute intervals Data is available via the Ecotech online reporting system Eagle The SA EPA has been provided access to the Eagle system
- The system provides real-time trigger alerts to Flinders Power staff by email and SMS Alarm thresholds are defined in the Flinders Power Fugitive Dust Trigger Action and Response Plan
- A summary of data namely the monitoring results for each 24-hour average period of ambient PM10 concentrations will be provided to the EPA on a monthly basis
Real-Time PM10 Community Monitors
- Two Exactus Beta Attenuation Monitors (BAM) have been installed within the nearest identified sensitive human health receptors to the site one each at
o Lea Memorial Oval representing the closest community receptor in the dominant downstream wind direction from the site and
o Stirling North Primary School representing the background concentrations of regional dust conditions It also acts as a secondary community monitor for fugitive dust emissions from the site during south-westerly wind conditions
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Fp RindtrsPower
- Data is collected on a 10-minute average basis Data is available via the online reporting system Eagle The SA EPA has been provided access to the Eagle system
- The system provides real-time trigger alerts to Flinders Power staff by email and SMS Alarm thresholds are defined in the Flinders Power Fugitive Dust Trigger Action and Response Plan
- A summary of data namely the monitoring results for each 24-hour average period of ambient PM10 concentrations will be provided to the EPA on a monthly basis
- The data collected from these monitors will be utilised for community monitoring against the 24-hour ambient particulate concentrations limit (PM10 concentration of 50ugm3) Data from these monitoring stations is made publicly available in real-time at wwwflinderspowercomau
- A trigger alarm (via email) has been set whereby project staff will be alerted by email if there is an exceedance of 50 micrograms per cubic metre of air over a 24-hour average period Flinders will notify the EPA within 24hours should this occur along with an interpretation of the conditions of the day and details of any remedial actions were undertaken at the site
Daily Total Suspended Particulate (TSP) at Lea Memorial Oval
- A high-volume air sampler is located at Lea Memorial Oval and will be run each day to collect TSP data The filter paper will be kept on record for further analysis if required
- Three high-volume air sampler units will be located at the site and will be set to run on timer over weekends and public holiday periods
- The data is indicative of total dust in the vicinity of the monitor
- A summary of data namely the monitoring results for each 24 hour average period of ambient TSP concentrations will be provided to the EPA on a monthly basis
Contingency PM10 and TSP Monitoring Sites
- A contingency PM10 high-volume sampler will be retained at
o The Port Augusta Pigeon Club
o The Port Augusta Tennis Association
o Lea Memorial Oval
o Stirling North Primary School
- A contingency TSP high-volume sampler will be retained at
o Port Augusta Hospital
- These samplers will be operated
- On days of high potential dust (eg days when charge felling of infrastructure occurs)
- If dust levels arising from site increase warranting an increase in the monitoring frequency
- During times of an outage of the real-time monitors at Lea Memorial and Stirling North
- Periodically for calibration purposes
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Fp RindtrsPower
Speciation
One of the challenges in undertaking ambient monitoring for dust within the community is differentiating coal ash and soil particles derived from operational activities as distinct from natural regional dust A key differentiator is wind direction and strength The wind direction and strength for the day of measurement is captured within data reports and used to assist determine whether particles may have derived from the APS site Another method used is colour ndash a filter paper of a red colour may indicate a high contribution of natural regional dust and is particularly noticeable during regional dust storms A filter paper of a grey colour can indicate a contribution from the ash dam however the natural urban dust and wood smoke from domestic heaters tends to also be grey in colour A very dark greyblack tinge can indicate the contribution from coal dust The township of Port Augusta and surrounding communities is located in a desert climate and is subject to frequent dust storms from the arid interior The analysis of historical high ambient dust results against weather events shows a strong correlation with regional conditions
Another key data input is local knowledge On certain days there may be local activities eg development of the Central Oval or mowing at the Lea Memorial Oval) that may be a key contributor to local dust These conditions are noted on the monitoring results database
Along with ambient air dust sampling dust collected from various locations around the site including along the railway and around the Ash Storage Area and town have been sampled to determine the coal and ash content
Other methods to identify the sources of dust collected at monitoring stations are continually investigated
The results of speciation work undertaken by the EPA or Flinders Power will be taken into account and the plan may be updated to reflect any requirements arising from these
In late 2016early 2017 the EPA conducted dust sampling and analysis at a monitoring station located adjacent to the Ash Dam and from a station within the Port Augusta community The results of the sampling including assessment from SA Health are available on httpwwwepasagovaubusiness_and_industryindustry-updatesflinders-power-port-augusta The results of the analysis indicated that whilst the toxicity of the ash particulate is considered low the particle size warrants proactive management of dust from the ash dam
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Fp RindtrsPower
6 Dust Management Plan (DMP)
Plan Stakeholders - Roles and Responsibilities
Positions in Flinders Power have been identified and assessed as having direct influence over parts of the process involved with managing dust on the APS site The responsibilities of such positions are described here to ensure clear and progressive lines of accountability and communication for the purpose of implementing this Plan
Facility Manager APS
bull Approve and support the DMP Ensure ongoing compliance with the DMP bull Authorise the resources required to implement this plan bull Custodian of the lsquoAsh Storage Area Contingency Plan ndash Extreme Weather Monitoring amp
Response Planrsquo ndash Appendix E bull Consult with the Environmental Coordinator to determine appropriate environmental
management strategies and contingency measures required by the DMP bull Install and maintain dust management infrastructure including dust suppression sprays and
cannons bull Report actual and potential environmental incidents bull Ensure sufficient resources (personnel materials and equipment) are available to respond to
high dust events bull Consult with the Environmental Coordinator with respect to the management of contractors
for decommissioning demolition and rehabilitation activities that may affect the integrity and effectiveness of the DMP
bull Maintain dust management infrastructure to ensure ongoing effectiveness and reliability bull Liaise with environmental and allied Regulators bull Notification to Regulators of any adverse dust events bull Notification to Regulators of any material changes to dust management controls and bull Consult and liaise with community stakeholders including proactive notification of
actualpotential dust events
Program Director ndash Flinders Sites
bull DMP document owner bull Review and approve the DMP bull Provide advice andor assistance to the Facility Manager APS to ensure the DMP is
appropriately implemented in the workplace bull Liaise with environmental and allied Regulators bull Ensure the FP website has current and accurate environmental monitoring data and bull Consult and liaise with community stakeholders
Environmental Coordinator
bull Manage stockpile and Ash Storage Area operations in accordance with the provisions of this plan in order to minimise the creation of fugitive dust
bull Provide advice and or assistance to the Facility Manager APS to ensure the DMP is appropriately delivered and followed in the workplace
bull Coordinate sampling of PM10 and TSP high volume samplers bull Ensure dust monitoring equipment is functional and accurate
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Fp RindtrsPower
bull Collation and reporting of environmental monitoring data bull Ensure dust and weather monitoring equipment is functional and accurate bull Collate and deliver daily environmental data including 5-day weather forecast dust risk
rating BOM dust alerts BOM severe weather alerts and previous period environmental monitoring data
bull Ensure proactive and reactive notification mechanisms are in place bull Maintain interpret and communicate dust monitoring results bull Investigate DMP non-conformances or dust quality exceedences bull Determine appropriate management strategies and implement contingency measures in
consultation with the relevant managersupervisor bull Complete all required Internal and External reports required by the DMP bull Ensure the Incident Management System contains the details of incidents and complaints
related to the DMP bull Service and maintain ambient monitoring equipment in accordance with OEM instruction and
the Environmental Monitoring Plan bull Publishing and provision of real-time and monthly data reporting to the EPA and community
and
FP Project Management Team
bull Manage stockpile and Ash Storage Area operations in accordance with the provisions of this plan in order to minimise the creation of fugitive dust
Land Management Team
bull Maintain the Ash Storage Area to reduce dust generation
bull Inspect the Ash Storage Area levees and batters along with site roads and perform dust suppression actions as required
bull Wash down coal dust and spillages from underneath conveyor structures and ash from under the boiler area
bull Maintain site vegetation and
bull Perform any other dust mitigation actions around site as necessary
Alliance Team members (FP McMahons Services and subcontractors)
bull Implement Alliance Plans including Environmental Management Plan bull Ensure appropriate dust management controls are applied for specific demolition activities
eg charge felling bull Undertake operation activities in accordance with relevant Flinders Power policies
procedures management protocols plans statutory licence and contract requirements bull Implement appropriate environmental management measures and bull Report actual and potential environmental incidents to the Facility Manager via their
supervisor
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Fp RindtrsPower
Implementation and Control Actions
The Implementation and Control Actions in the DMP are based on the following specific items
bull Design and use of plant and equipment so as to control and minimise dust bull Development and application of work procedures which reduce the potential for dust bull Use of dust suppression techniques on the Ash Storage Area coal storage and handling
areas and bull Development and implementation of auxiliary techniques to monitor weather conditions
affecting site in particular the Ash Storage Area in order to implement the Trigger Action Response Plan (TARP)
The following Tables (1 to 5) document the potential coal air qualitydust impacts with associated control plans
This has been developed by utilising the 2014 Aspects and Impacts Register as the basis to identify the locations or activities with the highest risk of dust generation on the site and updating these to reflect the requirements during closure activities
The locationsactivities have been ranked according to the highest residual risk for the environmental aspects contained in each
Table 5 lsquoAspects and Control Action 5 Demolition Activitiesrsquo specifically references the Alliance Project Risk Register which relates to dust control for demolition activities
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Rindmlower
Table 1 Aspect and Control Action 1 Coal Stockpile Operations
The following action plan relates to the revegetation of the former stockpile area
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
FPP Project
Management Team
Civil works on
stockpile pad
Preparation for
revegetation
Coal dust amp
wind blown
soil
Air quality EPP (Air Quality) Major Likely Extreme-8 Dust Management Plan Access
to area during low wind speeds
Water truck
Irrigation water
sprinkler system
Minor Possible Mod-5 wind
directionspeed
ambient monitoring
ad-hoc dust
monitoring
Operator
training
Closure period
23 Environmental Services Coal stockpile
management
Coal dust Air quality EPP (Air Quality) Major Likely Extreme-8 Dust Management Plan
Sprays Water truck
Project Group Minor Unlikely Low-4 wind
speeddirection
ambient monitoring
Operator
awareness
General
conditions
Inherent Risk Operational Controls
Augusta Power Stations Environmental Aspects and Impacts Register
General Control Matrix
Area Potential impact Potential contaminants Rehabilitation Controls Responsible personnel
Coal Stockpile and Tower Pad Heavy machinery generating dust while operating on or near the stockpile where coal is present during revegetation activities and prior to vegetation becoming established
Air qualitydust movement off site due to wind speed and direction
Coal dust soil and surface dust Capping and revegetation of the former coal stockpile and tower pad to prevent future potential fugitive dust emissions It is proposed to carry on with site civil works to cap the coal stockpile and tower pad areas and follow behind with seeding with native seeds at a rate of 15kg per Ha consistent with the Ash Storage area The coal stockpile and tower pad area has the advantage of the ability to irrigate which is expected to facilitate germination and growth of the native vegetation
FPP Project Management Team
Surface ripping during low winds (lt35kmhr) Cease work when wind speeds increase (gt35kmhr) Use of water truck to wet surface Allowing surface to harden Installation of irrigation system Revegetation of pad surface Daily monitoring by Project Manager and Land Management Team Additional revegetation as required
FPP Project Management Team
Use of dust suppression chemicals on open areas as required
Environmental Coordinator
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Rindmlower
Daily weather reports for wind speed amp direction forecasting and provide advice to team
Environmental Coordinator
Manually operate the sprinkler systems on forecasted strong wind conditions prior to forecasted conditions Install a remote activation system to allow operation in unforeseen or non-forecasted events quickly
Environmental CoordinatorFacility Manager
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Rindmlower
Augusta Power St ations Environmental Aspects and Impacts Register Ref No Responsible Activity Location Enviro Aspect Enviro Impact Legal amp other lnheren t Risk Operat ional Controls Residual Risk Monito ring Training Note
Oep tBronchSection requirements
(cause) (effect) Consequence Ukelihood Roting Primary Support Consequence Likelihood Rating
5 Environmental Services Ash storage dam Oust (Ash) Air quality EPP (Air Qua I ity) M ajor Almost Edreme-9 Oust Management Plan TARP APS Ash St orage Major Unlikely High-6 daily in spections
management emissions certain dust suppr ession chemical Dam Insp ection ambi ent monitoring
applicat ion t o surface and Check Ii st JSP234 Ash 3 mont hly
levees rea l -t ime PM10 disposal pipe laying inspections
mentoring at ash dam and JSP235 V ehicle
w it hi n com munity t ext alerts operation in Ash
BOM moni t oring of weather Pond area
prediction s
212 Environmental Services Ash sto rage dam Oust Air quality EPP (Air Qua I ity) M ajor Almost Extreme-9 Dust Managem ent Plan TARP APS Ash St orage Major Unlikely High-6 daily in spections
management (Red sand) certain dust suppr ession chemical Dam Inspection ambient monitoring
emissions appl ication t o surface and Checklist JSP235 3 mont hly
levees t rained vehicle Vehicle operat ion in inspections
operators real -t i me PM10 Ash Po nd area
mentoring at ash dam and
wit hin com munity t ext alerts
BOM moni t oring of weather
predictions
Table 2 Aspects and Control Action 2 Ash Storage Area Management
The following action plan relates to the management of the Ash Storage Area (ASA)
General Control Matrix
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Ash Storage Area Generation of dust from the main surface of the Ash Storage Area including borrow pits on the south side
Surface dust from main pipework outfall area
Generation of ash dust from the inside of the western levee areas
Generation of ash dust from the inside of the Eastern levee areas
Southern levee surfaces and batters including areas where wind-blown ash has settled
Ash dust particles Use of dust suppression treatment on the surface of the ASA ndash Refer Appendix A and B
Trigger Action Response Plan (Refer to section 7)
Use of water carts and additional dust suppression on banks and roadways as required
Daily visual inspection and remedial works as required
Facility Manager APS Environmental Coordinator McMahon Services
Facility Manager
Land Management Team
Environmental Coordinator
Ash Storage Area ndash Implementation of long-term rehabilitation plan
Generation of red dust from the borrow pit during excavation and haulage
Generation of surface red dust from haul roads tofrom the borrow pit and the Ash Storage Area
Soil lsquored dustrsquo particles Monitoring of dust generation and use of dust suppression measures during the implementation of the long-term rehabilitation plan for the Ash Storage Area Refer to Appendix D Fugitive Dust Trigger Action Response Plan (Rev 4 29th May 2017)
Facility Manager APS
McMahon Services
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Rindmlower
Generation of red dust from topsoil fingers and ash dam surface after spreading
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Rindmlower
Table 3 Aspects and Control Action 3 Coal Conveyor System and General Site
The following action plan relates to the management of dust around the conveyor system and general site
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
62 Flinders Project
Services
Coal bin storage Coal dust Air quality EPP (Air Quality) Moderate Possible High-6 Enclosure wash down of built
up dust
Maintenance
routines
Moderate Rare Mod-4 ambient monitoring
maintenance
records
Augusta Power Stations Environmental Aspects and Impacts Register Inherent Risk Operational Controls
General Control Matrix
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Conveyors Residual coal dust generation from conveyors and bins around the station
Coal dust Enclosed structures Dust wash down (completed during Make Safe period) Defect hazard reporting Routine site inspection
Environmental Coordinator
Open areas Generation of dust from surfaces such as underneath conveyors and towers where coal has spilled or dust settled
Coal dust and surface dust Wash down with water hose when required
Land Management Coordinator
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Rindmlower
Demolition Control Actions
Table 4 Aspects and Control Action 4 Site Roads (General Conditions)
The following action plan relates to the management of dust roadways around site
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
21 Environmental Services Road traffic Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Moderate Possible High-6 Speed limits on-site
Routine road washing
Minor Unlikely Low-4 Site inspections
Augusta Power Stations Environmental Aspects and Impacts Register Inherent Risk Operational Controls
General Control Matrix
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Roads Generation of dust from road surfaces Coal dust and surface dust Water spray with water truck Street sweeper (hired as required)
McMahons Facility Manager APS
Printed copies are uncontrolled Please ensure you are referring to the most current version 29
set Issue or lmpr-ovement Opportunity
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Inherent Risk Rating
llkeoll100ltI
2 Ml lOlt C ~ lY
RaiJno amp Pr1011ty
current ~ roaoh (Exktlng ContlOJGJ
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Rlsidu11 Risk Rating
Rallng amp Pr1ltlrlly
Modun l i
Proposld Mitigation o f Risk Exposure lmp-ovem1mt Aciions
Rkk Reduotlon Trbull abnbull nil o r Aa ef lmp(OWbullmefll
ov-edAoifon
Aotton owner
Rindmlower
T arglt Risk Rating
LllellhOOd
Table 5 Aspects and Control Action 5 Demolition Activities
The following action plan relates to the management of dust during specific demolition activities
Ref No Responsible
DeptBranchSection
ActivityLocation Enviro Aspect Enviro Impact Legal amp other
requirements
Residual Risk Monitoring Training Note
(cause) (effect) Consequence Likelihood Rating Primary Support Consequence Likelihood Rating
McMahons Road traffic during
demolition activities
removal of material
off site
Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Moderate Possible High-6 Pre-task JSEA Site vehicle
speed limits
Routine road washing with
water truck
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Minor Unlikely Low-4 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons General Demolition
Activities
Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
Water areas with water hoses
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons General Civil Works Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
Water areas with water hoses
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons Stack Felling Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
Industrial mist fans
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
McMahons Bin Felling Dust emissions Air quality EPP (Air Quality)
EPA Licence 13006
Cond No 11
Major Likely Extreme-8 Pre-task JSEA Water spray
with water truck
McMahons -
Demolition
Environmental
Management amp
Hazardous Materials
Plans
Moderate Unlikely Mod-5 Ambient dust
monitoring site
inspectionssupervis
ion
Inherent Risk Operational Controls
Augusta Power Stations - Demolition Environmental Aspects and Impacts
Alliance Project Risk Assessment Register ndash Dust from demolition activities ndash extract
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Rindmlower
General Control Matrix (for Table 5 Aspects and Control Action 5 Demolition Activities)
Area Potential impact Potential contaminants Mitigation measures Responsible personnel
Stack Felling Generation of dust Coal dust ash and surface dust Vehicle speed limits Water shall be utilised for the purpose
McMahons Facility Manager APS
of dust suppression during demolition
Coal Bin Felling Generation of dust Coal dust ash and surface dust activity via air misters spotters with McMahons milk hoses suppressing dust during Facility Manager APS works as well as pre-wetting materials
General demolition activities Generation of dust Coal dust ash and surface dust before demolition activity commences McMahons water cannons built into large Facility Manager APS
General civil works Generation of dust Coal dust ash and surface dust
excavators spraying during demolition activity Plant movement minimised where
McMahons Facility Manager APS
Site traffic for demolition material removal
Generation of dust Coal dust ash and surface dust
possible to prevent excessive generation of dust If required water cart utilised to suppress seal ground area Reduced activity during high winds Dust monitoring using visual and electronic monitors
McMahons Facility Manager APS
Community and stakeholder engagement and information sharing of demolition events with potential for significant dust generation which may have an adverse effect on the community
Reclaim transport and use of ash from Generation of dust Ash dust Refer to task-specific JSEA developed McMahons the Ash Storage Area for demolition for the activity (Appendix F) Facility Manager APS activities (eg backfill of voids)
Reclaim transport and use of soil from Generation of dust Soil (red) dust McMahons the on-site borrow pit for demolition Facility Manager APS activities (eg backfill of voids topdressing working base for excavator)
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7 Ash Storage Area ndash Dust Management
The current approach for dust management on the Ash Storage Area (ASA) utilises regional weather predictions of wind speed and direction to inform activity planning and the implementation of dust management measures on the ASA
Historically infrequent events have occurred whereby rainfall on the ASA during the spring and summer months has caused the salt crust on the surface created by surface seawaterash slurry flooding to deteriorate and allow ash to become airborne in strong winds
Whole of ASA Dust Suppression Treatment
Conditions on the ASA since closure has shown that the normal dust suppression activities used (coffer dam building and surface flooding) have damaged the ASA surface allowing fine ash to be lifted from the surface A review of the dust suppression methods used on the ASA through August ndash October 2016 determined that the optimal method of dust suppression was to seal the whole of the ASA surface with a dust suppression treatment
An initial area of 15Ha in the middle of the ASA was sealed with dust suppression chemical in August 2016 which was applied by crop duster airplane The results of the sealing of this initial area were positive and after severe weather events during September and October 2016 causing large ash lift off events from the remainder of the ASA and dangerous conditions for machinery on the ASA levee banks it was decided to investigate the sealing of the whole of the main ASA
A risk assessment and proposal for the sealing of the ASA was developed in collaboration with the EPA and provided for review on the 21st October 2016 Approvals were provided and the project was completed on 22nd November 2016
Severe storm activity in the period 24-28th December 2016 impacted the dust suppressant seal which rapidly dried and led to a dust event on the 1st and 2nd January 2017
The use of a dust suppressant seal is an interim measure prior to the completion of the full rehabilitation program
Trigger Action Response Plan ndash Ash Storage Area
A Trigger Action Response Plan (TARP ndash refer Appendix D) has been developed incorporating the ldquostoplightrsquo performance monitoring tool and visual site inspections as the triggers The TARP will hold two key functions
- To monitor sealant condition and determine if further treatment is required to control ash dust generation from the Ash Storage Area and
- To monitor the generation of lsquored dustrsquo during the completion of the long term rehabilitation plan including soil trafficking emplacement and throughout the germination period of vegetation
A newly installed ambient dust monitoring system is also used to inform site staff of ldquoreal timerdquo airborne dust levels around the ASA and in two community monitoring sites These ldquoreal timerdquo levels
Printed copies are uncontrolled Please ensure you are referring to the most current version 32
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240
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240
120
1711
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171
33
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71
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0
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2017
17
30
240
120
17 1
930
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401
201
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30
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are used in conjunction with site visual observations to determine escalating trigger points within the TARP
The mitigation responses are drawn from the Aspect Control Actions appropriate for the identified triggers The site Incident Management System (IMS) is used as the action assignment and data recording tool
The TARP has been communicated to the appropriate site stakeholders to ensure appropriate actions are taken to mitigate dust from specific identified areasactivities on site
The Ash Storage Area has been identified as the key area for dust management and a three tiered process using wind forecasts has been developed with a daily weather forecast utilising a Red-Yellow-Green ldquostoplightrdquo type format Daily weather reports are reviewed for wind speeds forecasted to be over 35kmh in the proceeding days and a weather forecast chart is used to identify times of risk of generating dust
The chart below shows an example of the weather forecast prepared and communicated daily to site leaders
Figure 4 Example lsquostoplightrsquo TARP system for weather warning
The green band to show when potentially dust generating activities with heavy plant can take place A yellow band indicates when caution is required and a red band indicates times where it is likely that site activities may need to cease
The daily report is supplemented with the predicted weather conditions (sourced from weatherzonepro) for the next 6 day forecast period An example is provided in Figure 5 below
Printed copies are uncontrolled Please ensure you are referring to the most current version 33
flinderslower
Vlincl Speed (kph) kmh) vs Vf111cl Dir kmh) I Temperature (degC) vs Jgtreap Probab1l1tv () Last updated Tue 24 Jan 07 OD
AAAAAAAAAAA AAAAAAAAAA AAAAAAA gt-~A AA AA4AA ~~~AAA t-C DATE 24 )(Ill Tue TIME 0730
M ~~
VJn 1 c--ip(I 1_k(lhJ 1 ) 4 t 21 ~-5
WinDir A 351kmh v7
2_Jan ~ n
Figure 5 Example six-day predicted weather forecast
Further Flinders has access to the Bureau of Meteorology dust warning system which is checked daily and alerts issued with the daily environmental report An example dust warning is provided in Figure 6 below
Printed copies are uncontrolled Please ensure you are referring to the most current version 34
flinderslower
Local Time 1230 COST (dar l ) Base Da~middot 2017 02 01
Figure 6 Example BOM dust warning
Preparation for extreme weather events is documented in Appendix E Ash Storage Area ndash Extreme Weather Monitoring amp Response Plan
On high wind speed days the following example precautions will be undertaken where appropriate Full details are provided in the TARP (Appendix D)
bull Ensure safety of site staff and visitors
bull Monitor wind speeds using Bureau of Meteorology data
bull Cease work activities on the Ash Storage Area
bull Surface inspections to determine if ash is blowing off
bull Targeted action for high risk accessible areas and
Printed copies are uncontrolled Please ensure you are referring to the most current version 35
flinderslower
bull Notify stakeholders and the community if required (Port Augusta City Council community and SA EPA) in accordance with Section 5 of the APS Environmental Closure amp Post-Closure Plan
When a community complaint regarding dust is received by the company activities on the Ash Storage Area will be reviewed and ceased if deemed appropriate by the Flinders Power Facility Manager or delegate
Printed copies are uncontrolled Please ensure you are referring to the most current version 36
flinderslower
8 Former Coal Stockpile Areandash Dust Management
The NPS Coal Stockpile pad has been rehabilitated and revegetation of the surface is in progress
Whilst the vegetation is established the existing Coal Stockpile TARP will be followed as below
Flinders Power (FP) have made attempts to revegetate the existing former coal stockpile area in 2016 through to 2018 directly into coal however only relatively minor vegetation has established A site inspection conducted by Succession Ecology in August 2017 noted that revegetation over time will be successful however an alternate seed blend may expedite the process Additional seed was sown in September 2017 A lack of rainfall over the 201718 period has impaired germination
In order to expedite the timeframes associated with arid lands revegetation projects Flinders now propose to carry on with civil capping works currently being undertaken across the ash storage area to cap the approximate 15 Ha former coal stockpile and tower pad areas The existing irrigation infrastructure will be retained for future dust management and potentially for irrigation to initiate germination
The soil capping of this area is designed to mitigate fugitive coal dust emissions Additionally the borrow pit material will facilitate the revegetation of this area in order to establish a self-sustaining environment
Succession Ecology (SE) has inspected the area and is supportive of the capping
The soil capping will be seeded with a previously approved native seed (wet) mix which is salt tolerant as advised by SE due to the evident salinity levels in the area
Vegetation Monitoring will continue to occur
The irrigation will be mainly used for dust suppression but could be used for kicking off germination depending on what rains we receive and what success of germination we have from the rain The irrigation will remain operational in the case it may be required
FP has received endorsement of the approach from Kirsa Environmental
Timing for approval of capping of the former coal stockpile and tower pad area is critical as it is proposed to follow on from current site civil capping works into the proposed capping works associated with the former coal stockpile and tower pad areas
It is intended that the current fleet of civil plant will be utilised to complete the proposed capping scope of works
Trigger Action Response Plan ndashStockpile Revegetation
A (TARP) has been developed for revegetation work on the stockpile incorporating the ldquostoplightrsquo performance monitoring tool and visual site inspections as triggers
Stockpile revegetation has been identified as a key area for dust management and the stoplightrdquo Red-Yellow-Green weather forecast will also be used during activities on the stockpile pad To facilitate and expedite the revegetation of the former coal stockpile and tower pad areas it is proposed to cap the area using material from the existing borrow pit
The lsquostoplightrsquo format will use a Green band to show when potentially dust generating activities with heavy plant can take place according to the following weather conditions
Printed copies are uncontrolled Please ensure you are referring to the most current version 37
flinderslower
Any activities during a wind speed below 20kph (6 ms or 11 knots) from the SOUTH EAST to SOUTH WEST
A Yellow band will show the hours when potentially dust generating activities with heavy plant can take place according to the following
Any activities during a wind speed over 20kph (6 ms or 11 knots) from any wind direction other than from the SOUTH EAST to SOUTH WEST
A Red band will show the hours when potentially dust generating activities with heavy plant cannot take place
Any movement activities during a wind speed over 20kph (6 ms or 11 knots) from the SOUTH EAST to SOUTH WEST
Stockpile inactiveRevegetation Program
Proactive measures will be undertaken when strong wind conditions are forecasted by manually operating the former coal stockpile sprinkler system to dampen the area to prevent dust lift A remote operating system will be installed to provide a quick response to any non-forecasted or unforeseen weather events
Printed copies are uncontrolled Please ensure you are referring to the most current version 38
flinderslower
9 Dust Monitoring and Evaluation
Ongoing dust monitoring by either visual evaluation of ashcoalsoil dust generation on site or by interpretation of the results from the dust monitoring network will determine if dust mitigation measures are effective or additional measures are required
Groups responsible for inspections are described in the action tables and TARP Text and email alerts are automatically sent to a nominated group of responsible persons when dust wind speed and wind direction thresholds are exceeded These mechanisms are outlined in the TARP
The monitoring of real-time PM10 data from the boundary monitors of the Ash Storage Area is presented on a screen within the Flinders Power office on site and monitored by both Flinders Power and McMahon Services personnel A summary of data is provided in the daily environmental report
Access to real-time dust monitoring information for the Ash Storage Area and community monitoring stations is made available to the EPA A summary of real-time data for the community PM10 monitors is presented on the Flinders Power website and made openly available to the community
The monitoring of real-time PM10 data from Stirling North and Lea Memorial Oval is verified daily (M-F) by the Environmental Coordinator
The monitoring of ambient high-volume filter papers within the Port Augusta community is conducted daily by the site Environmental Coordinator
Printed copies are uncontrolled Please ensure you are referring to the most current version 39
flinderslower
10 Community and Stakeholder Engagement
Community and stakeholder engagement is detailed in the APS Closure and Post Closure Environmental Plan
A summary of these mechanisms are outlined below
Mechanism Target Group Posted on FP
website
Frequency Notes
Residents PACC MP Media EPA NRM Board
Special-interest groups
Weekly progress report
X X X No Weekly A summary of activities at the site including demolition and ash dam rehabilitation
Face-to-Face meetings site visits
X NA Monthly Monthly meetings with PACC CEO and Mayor when available
Annual environmental presentation
X Yes Annual Annual presentation to PACC ndash open public forum
Media release Infomercials
X X Yes Ad-hoc Strategic media release eg felling of PPS A station stack
Works Progress Fact Sheet
X X X X Yes Monthly Quarterly
A monthly progress update Letter drop
Focus topic fact sheet
X X X X X X X Yes Ad-hoc A brochure on a particular topic (eg ash dam Playford A building demolition) Letter drop
Flinders Power website
X X X X X X X Yes Regular updates
Information portal Links to FP YouTube account FP contact details
Flinders Power hotline amp email
X X X Yes NA All community complaints are logged
Special-interest presentations
X NA On request
Presentations or site visits on request (eg Rotary schools)
Community site visits
X NA On request
Actively invite community members
Community forum
X X Yes Monthly Group now established
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flinderslower
reference group
Community X Yes TBA May include site information tours days
SMS distribution list
X X X X X X X Yes Ad-hoc Rapid notification of dust incidents
Flinders power is also performing community sentiment monitoring using the following
- Daily media monitoring ndash print TV radio and online
- Complaints hotline amp email ndash central recording
- Facebook ndash linked with community forums
- FP personnel embedded within the community
- Feedback from SA Government Regulators
- Close relationships with PACC MPrsquos local media and community leaders
101 Complaint Management
Community complaints regarding nuisance coal dust and ash are to be dealt with according to the Complaint Handling Procedure contained in Appendix C
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flinderslower
References
Aurecon 2010 Alinta Northern Power Station Stockpile Dust Management Flinders Power Report ref 206865-001-01 9 September 2010
Environment Protection Act 1993 (SA)
EPA Licence 13006 (Northern and Playford Power Station)
EPA Licence 13011 (Leigh Creek to Port Augusta Railway Operations)
Flinders Power Environment amp Community Policy (June 2016)
Printed copies are uncontrolled Please ensure you are referring to the most current version 42
flinderslower
Appendices
Appendix A Ash Dam Interim Sealing ndash Proposal 7th November 2016
Appendix B Ash Dam Interim Sealing ndash Risk Assessment 2nd st January 2017
Appendix C Complaint Handling Procedure
Appendix D Fugitive Dust Trigger Action Response Plan (Rev 6 3rd January 2018)
Appendix E Ash Storage Area ndash Extreme Weather Monitoring amp Response Plan (Rev 0 3rd March 2017)
Appendix F JSEA for the excavation transport and use of soil and ash from the borrow pit or Ash Storage Area for demolition activities
Printed copies are uncontrolled Please ensure you are referring to the most current version 43
flinderslower
Appendix C
Complaint Handling Procedure
All complaints received by Flinders Power employees including security are handled according to the following steps
All complaint receivers are required to
bull Collect all details from the complainant (time location concerns)
bull Repeat back and confirm details with the complainant
bull Obtain complainants contact details
bull Advise relevant Supervisor immediately
The Facility Manager is to be advised as soon as practicable of receipt of the complaint
The complainant will be contacted and an investigation of the complaint initiated as soon as practicable of the receipt of the complaint The investigation typically may include
- A visit to the complainant to
o Observe local dust conditions
o Discuss the event with the complainant and
o Taking of samples
- A review of site data from the time of the incident
- A review of meteorological data
Following the investigation the complainant is to receive a written response outlining the investigation procedure and findings If requested the findings of the investigation will be explained and discussed with the complainant in person
Details of the complaint the investigation management actions implemented and follow up is recorded within the FP Incident Management System
All media enquiries are to be managed through the approved Flinders Power Media Protocols
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