WSNTG Annual Conference 8 th September 2005 WSNTG 9 th Annual Conference “Water Services Strategic...
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WSNTG Annual Conference 8th September 2005
WSNTG 9WSNTG 9thth Annual Annual ConferenceConference
“Water Services Strategic Plans –
Fact or Fiction”
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WSNTG Annual Conference 8th September 2005
Water Conservation / Mains Rehabilitation / Strategic Plans in a rural context
Ian PatersonTechnical DirectorCarl Bro / Ryan Hanley
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Mapping and GIS
Caretakers As Built records Up date procedures necessary MapInfo, MapNet, CIS, AutoCad
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Customer Data
Domestic - Geo Directory Commercial - NDU Surveys, Geo
Directory Site Surveys Large users / Exports measured
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Record Keeping
Burst Data Complaint Data Leaks on new estates Private Leaks
• Domestic• Commercial
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Metering
Source, Treatment works, reservoir outlets, pumping stations, district meter areas and customers
Electromagnetic, or if existing site appropriate replace mechanical mechanism
Appropriate meters for major customers
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Water Audits
Meter data Customer data Flow balances - DMA, Source, Region Unaccounted for water / leakage Customer metering will have significant
effect Supply / Demand Balances Future Demands
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Leakage Reduction
Trained Staff Equipment the team wish to use Realistic Targets Review and update targets Urban areas different to rural areas Will need to install further fittings
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Ballina Res Outflow 2005
0
20
40
60
80
100
120
Apr-05 Apr-05 May-05 Jun-05 Jun-05 Jul-05 Aug-05
Date
Flow
(l/s
)
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Ballina Reservoir Outlet Flow
0
10
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30
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60
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90
00
:00
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00
:45
:00
01
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:00
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Time
Lit
res
Pe
r S
ec
on
d
Monday 25/10/04 - Total Flow 5876.94m3Monday 02/05/05 - Total Flow 5456.65m3 (Savings 420.29m3/Day)Monday 30/05/05 - Total Flow 5122.26m3 (Savings 754.68m3/Day)Monday 06/06/05 - Total Flow 4844.28m3 (Savings 1032.66m3/Day)Monday 04/07/05 - Total Flow 5031.38m3 (Savings 845.56m3/Day)Monday 25/07/05 - Total Flow 4765.00m3 (Savings 1111.94m3/Day)
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Hydraulic Modelling
Fully detailed models Validated against field recorded
data Identifies
Anomalies Low / high pressure mains with poor hydraulic
performance
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MyshallReservoir
CRWSSWTW
CrowsgroveReservoir
BallonReservoir
TullowWTW
TullowReservoir
NRWSS - TullowControl Valve
CarlowReservoir
NRWSS WTW MoatReservoir
ClonegalReservoir
RichardstownExport
Minimum Pressure Bands
5040302015
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Procedures
Critical to establish Procedures for staff to follow
MappingUpdating Customer dataBurst/leak recordingMonthly water auditing
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Team Development for sustainability
Establishment of County team to undertake management of the water supply and distribution system
Training Procedures Motivated staff Significant benefits are achieved and
cost of operation reduced
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Countywide Telemetry
Remote monitoring of Facilities Re deployment of staff to other duties Management reporting direct from system Maintenance schedules automatically
produced for action Covers both water and Sewerage Can tie into site SCADA systems Alarms forwarded to appropriate staff
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Rehabilitation Needs Assessment
System mapping Hydraulic models Structural data
Pipe samples Burst records
Caretaker data Scoring system to highlight priority
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Above Ground Assets
Database of all sites and Facilities Maintenance schedules for all
equipment and replacement policy Develop costed plans for upgrades
and maintenance Review global County position
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Luimnagh Water Treatment Plant
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Knockacarrigeen Reservoir
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County Strategic Plan
Supply / Demand Balance - now/future Asset condition Transfers between schemes Maintenance Needs
• Pipelines• Treatment Plants
Proposed Capital Schemes A Global policy for Capital and
Maintenance of the Water Supply Infrastructure
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Benefits
Reduced leakage / operating cost Actual understanding of system
performance Reduced overtime payments Improved supply to customers Active management of the network Ability to demonstrate need for
capital investment based on facts
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WSNTG Annual Conference 8th September 2005
WSNTG 9WSNTG 9thth Annual Annual ConferenceConference
“Water Services Strategic Plans –
Fact or Fiction”