environmental affairs Department: Environmental Affairs REPUBLIC OF SOUTH AFRICA

RISK ASSESSMENT IN TERMS OF REGULATION 8 OF THE WASTE EXCLUSION REGULATIONS

APPLICANT

WASTE STREAM OR PORTION OF A WASTE STREAM TO BE EXCLUDED FROM THE DEFINITION OF WASTE

BENEFICIAL USEIS

Anglo American Platinum - Rustenburg Platinum Mines Limited

Slag generated in the Smelter by the pyre-metallurgical processing, of PGM Concentrates from a variety of Anglo American Platinum Concentrators

Dust suppression on unsurfaced areas

Abrasive for pneumatic air blasting

• Mining materials o Rock Support (replacement of wood packs) o Insulation o Thin skin liners (rigid and flexible)

• Building materials o Bricks (light and heavy) o Roofing (insulated or plain) o Walling (hollow core and Insulated) 0 castable insulation slabs o Castable !machinable profiles o Aggregate in standard building products o Light building products

f-

• Environmental o Cement foam for thermal or acoustic insulation o Thermal insulation

Road aggregate, surfacing and underburden ---------1

Construction fill

Backfill --- ------------------------1

Mineral fibres

Rock wool

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WASTE GENERATING FACIUTY Polokwane Metallurgical Complex ORFACIUTIES

PHYSICAL ADDRESS OF Palmietfonteln Farm FACILITY OR FACILITIES

Burgersfort Road, Polokwane

GPS CO.QRDINATES OF WASTE NUMBER OF LONGITUDE LATITUDE

GENERATING FACILITY OR CORNERS

FACILITIES 1 29°27' 43.07"E 24°1' 57 .08" s

2 2S028' 8. 7TE 24°1' 57.00' s

3 29°28' 8. 72"E 24°2' 1.69" s

4 29°28' 6.58"E 24°2' 5.2611 s

5 2S028' 8. 7011E 24°2' 7.03" s

6 29~8' 8. 75"E 24°2' 9.42" s

7 I 29°28' 2.81"E 24°2' 15.84" s I

8 2go27' 58. 78"E 24°2' 17.21" s

9 2go27' 58.01"E 24°2' 15.02" s

10 29°27' 43.17"E 24°2' 15.10" s

CONTACT PERSON

NAME Phillimon Mukumbe

ADDRESS Private Bag X4654, Polokwane

EMAIL ADDRESS QhillimonQatsoo. m!Jk!Jmbe@~D9IQ§m§ri!:!an. com

TELEPHONE 082 338 1126

*DETAILED DESCRIPTION OF Concentrate Is fed to two flash dryers that utilise coal-fired, WASTE GENERATING PROCESS fluidized-bed hot-gas gene~tors to produce the hot gas

that will drive off the moisture, leaving a fine bone-dry concentrate as furnace feed. The dry concentrate Is pneumatically transferred to a storage silo before being transferred to the feed bins situated above the furnace. Lime, if required as a flux, may be transferred separately to the furnace feed bin by a pneumatic system.

The concentrate and lime is fed from the feed bins into the electric furnace and concentrate Is melted by energy generated when electric current passes through the electrodes and resistive slag layer. On melting, two

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immiscible phases form: slag matte. Furnace matte, containing the bulk of the base metal sulphides and PGMs, is denser than slag and collects naturally at the bottom of the furnace. Matte is tapped periodically through one of the two matte tap holes into 35-ton refractory-lined ladles, and cast into matte ingots on a casting machine. The cooled matte is discharged onto a concrete slab for cooling and then transferred by frontend loaders to the crushing plant. Slag is tapped from the furnace at temperature of approximately 1 600°C. The slag is sprayed with quenching water thereby granulating it to a particle size varying from 1 0 microns up to 4 mm. The slag is an amorphous glass-like black particle. It has an irregular surface with sharp edges due to the rapid cooling of the molten slag. It has a tendency to form fibre-like particles referred to as 'angel hair'. More than 93% of the slag is over 0.5 mm in size.

The slag that is generated is then conveyed and trucked to the slag pad for storage.

PRODUCTION PROCESS FLOW YES CHART ATTACHED

WASTE CLASSIFICATION HAZARDOUS

IF WASTE IS HAZARDOUS LIST Slag does not represent chronic or acute aquatic toxicity THE HAZARDS OF THE WASTE and is therefore not classified as being Environmentally

hazardous In terms of SANS 10234. Slag is however classified as having a potential health hazard (skin and eye irritant and single organ toxicity if ingested) to workers exposed without appropriate Personal Protective Equipment.

• A process flow chart must be attached to the process description

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RISK ASSESSMENT WITHOUT MITIGAllON

Activity I Risk I Envtror ... ntal .-......ntofRisk I Significance

O.criptlon Receptors Impact Probability Magnitude Duration Scale

Recovery of Deterioration of Direct contact Site workers 2 4 5 1 20 slag from workers health If during handling prolonged dermal stockpile, and the appropriate contact with slag may deposition at Personal lead to skin irritation users storage Protective I through repeated and stockpile Equipment is not frequent exposure. potentially utilised when generating working with Slag Air Site workers 2 6 5 1 24 dust to which and if continuous prolonged, frequent the site exposure and repeated operators are persists, within exposure may lead to exposed on the context that eye irritation an ongoing the density of the and regular slag is such that it basis is unlikely to be

significantly mobilised

Other road users Air Other road users and and communities communities along along the the transportation

Transportation transport route route experiencing between may experience a prolonged dennal 1 4 2 3 9 generator and deterioration of contact with slag may users, health If lead to skin irritation generating repeatedly through repeated and dust exposed for a frequent exposure.

suffiCiently long period, within the Other road users and context that the communities along 1 6 2 3 11 density of the slag the transPOrtation

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Activity Asl88sment of Risk Risk

Description

Environmental I Receptors I

Impact Probability Magnitude Duration I Scale

Raw material storage at site of reuse

Manufacturing using slag

is such that it is unlikely to be significanffy mobilised

If slag is not appropriately stored and runoff managed with the result that

I Site soils and those onto which the slag is washed during rainfall

sediments wash !-----­from the stockpile onto adjacent soils and into adjacent water courses

Water courses into which slag is spilled or washed

Slag particulates Air actuated during manufacturing processes using slag, which then come into dermal contact, with a subsequent deterioration in workers' health

route experiencing prolonged, frequent and repeated exposure may lead to eye irritation

Change in soil quality from baseline

4

Workers using slag in products experiencing prolonged, frequent and repeated exposure may lead to 2 eye irritation. Prolonged dermal contact with slag may lead to skin irritation through repeated and frequent exposure.

Storage of Although the • Soil Soil quality change slag at users leach testing from baseline 3 premise underta;;.;.;k;.:;;e;.;.n _ _,o:..:..n::....~.-____ __ ._

4 4 1

I

6 4 2

J

2 5 1

2 1

Significance

36

36

16

21

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Activity Risk Environmental Aas••ment of Rl8k Significance

Duc:riptlon Receptors Probability 1 Magnitude lmpac:t Duration Scale

potentially slag indicates that • Groundwater generating the leachable users leachate fractions are during rainfall below the

Leachate Concentration Threshold 1 of the Nonns and Standards, mobilisation of low concentrations of salts and metals during rainfall may accumulate in the soils underlying the storage site

Although the Groundwater Groundwater quality leach testing change from baseline undertaken on slag Indicates that the leachable fractions are below the 2 6 4 2 24 Leachate Concentration Threshold 1 of the Norms and Standards, mobilisation of low

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--Activity Risk Environmental Assessment of Risk Significance

Description Receptors Impact Probability Magnitude Duration Scale

-~ I

concentrations of salts and metals during rainfall may migrate into the aquifer below the storage site

Although the Surface water Surface water quality leach testing change from baseline undertaken on slag indicates that the leachable fractions are below the Leachate Concentration Threshold 1 of the Norms and Standards, 2 6 -4 3 26 mobilisation of low concentrations of salts and metals during rainfall into runoff that is then discharged to an adjacent water course may increase salt load of the water course

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The following factors and criteria must be used to assess the Impacts of the activities:

Criteria c---

MAGNITUDE (SoverttyL DURATION 1 0 - Very high 5- Permanent (lon9!r than 10 years) 8-H•gh 4- Lona-term (5 to 10 vears)

'6- Moderate 3- Medium-term (12 months to 5_yeara} 4 - Low 2 - Short-term (0 to 12 months) 2 -Minor 1 - Immediate

SCALE PROBABILITY (Ukellhood) 5 -International 5- Definite --4 - National 4 - HJghlv probable 3-Reqional 3 - Medium probability 2-Local 2 - Low orobabifi tv 1 ·Site only 1-Im bable 0-None 0-None

Magnitude Magnitude measures the size of the impact

Duration Duration refers to the lifetime of the impact I.e. how long it will last

Scale The scale refers to the extent of the Impact.

Prob•blllty The probability refers to the chance of Impact to occur. The potential impact could be most likely to occur, unlikely,

etc.

Assessment of Significance of imoact

Significance rating of the potential Impacts illustrates the importance of the Impact itself. The size of area affected by pollution may be extremely high but the significance of this effect is dependent on the concentration or level of pollution in that area. In order to determine the signifiCance of impact, the following method was used:

Significance Points (SP) =(Magnitude+ Duration+ Scale) x Probability

The values of SP are then ranged as follows: Rlltlng O.Crtptlon

SP>80 Indicates high An impact which could Influence the decision about whether or environmental not to proceed with the activities regardless of any possible slgnifJCance mitigation.

SP30- Indicates moderate An Impact or benefit which is sufficientJy important to require eo environmental management and which could have an Influence on the

significance decision unless it Is mitigated. SP<30 Indicates low Impacts with little real effect and which will not have an Influence

environmental on or require modification of the activities. significance

+ Positive Impact An impact that is likely to result in positive consequences/effects

Pagel of I

1, ~~ LiC3\·'~ ~T\--1. hereby declare that I have read the completed the Risk Assessment form and hereby confirm that the information is to the best of my knowledge true and correct.

Furthermore, I declare that I am fully aware of my responsibilities in terms of the Waste Exclusion Regulations, and that failure to comply with these Regulations may constitute an offence in terms of the National Environmentai.Management: Waste Act, 2008 (Act 59 of 2008).

Applicant (Full names)

~EZ.U't'\VG,: \~~ Designation ---------------------

Signature --T-- -''r------------------"-....___J

$)..-, ~\.olo.C...\.A.1T '2-tl~ 5- .Jc>MA~~.I/.v..£.4 Date--- -------Place

Date Received

Decision Taken Authorised I Not Authorised (provide reasons)

Reference Number

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environmental affairs Department: Environmental Affairs REPUBLIC OF SOUTH AFRICA

RISK MANAGEMENT PLAN IN TERMS OF REGULATION 10 OF WASTE EXCLUSION REGULATIONS

APPLICANT

I SOURCE(S) OF WASTE

WASTE TO BE BENEFICIATED

BENEFICIAL USEIS

Anglo American Platinum- Rustenburg Platinum Mines Limited

Slag generated in the Smelter by the pyro-metallurgical processing, of PGM Concentrates from a variety of Anglo American Platinum Concentrators

Slag contained in the waste facility located at the Polokwane Metallurgical Complex

Dust suppression on unsurfaced areas

Abrasive for pneumatic air blasting

• Mining materials 0 Rock Support (replacement of wood packs) 0 Insulation 0 Thin skin liners (rigid and flexible)

• Building materials 0 Bricks (light and heavy) 0 Roofing (insulated or plain) 0 Walling (hollow core and insulated) 0 castable insulation slabs 0 castable /machinable profiles 0 Aggregate in standard building products 0 Light building products

-• Environmental

0 Cement foam for thermal or acoustic insulation

0 Thermal insulation

Road aggregate, surfacing and underburden

Construction fill

Backfill

Page 1 of7

Mineral fibres

Rock wool

MSDS ATTACHED IF YES HAZARDOUS

-WASTE GENERATING Polokwane Metallurgical Complex FACILITY

Palmletfonteln Fann

PHYSICAL ADDRESS Burgersfort Road

Polokwane

GPS CO-ORDINATES OF NUMBER OF LONGITUDE LATITUDE

WASTE GENERATING CORNERS

FACILITY (EG. eoo 29' 30" 1 29°27' 43.07"E 24°1' 57 .08" s Latitude; 34° 20' 15"

Longitude) 2 29°28' 8. 72"E 24°1' 57.00" s 3 29°28' 8. 72"E 24°2' 1.69" s 4 29°28' 6.58"E 24~' 5.26" s 5 29~8' 8. 70"E 24°2' 7 .03" s 6 29028' 8. 75"E 24~'9.42" s 7 29028' 2.81"E 24°2' 15.84" s 8 29°27' 58. 78"E 24°2' 17.21" s 9 29°27' 58.01"E 24°2' 15.02" s 10 29°27' 43.17"E 24°2' 15.10" s

Private Bag X4654, Polokwane

POSTAL ADDRESS

CONTACT PERSON Phillimon Mukumbe

TELEPHONE I CELL: 082 3381126 -

Page2 of7

11 I phllllmonpatson.muku FAX:

EMAIL mbe@angloamerican.c om

1 ~---------------------

Page 3of7

RISK MANAGEMENT PLAN

Adlvlty Rllk Dllcrlpllon Adlon(l) to mlnlmllllm.llgl the rtlk Rllponstillty (Who II ratpOIIIible to carry out thlaclion)

Deterioration of Deterioration of workers health if the Access to the site to be limited only to Receiving site. workers health if appropriate Personal Protective Equipment authorised personnel the appropriate is not utilised when working with Slag Personal Protective Worters to utilise all required PPE to limit Equipment (dust mask, overall and dermal exposure and risks to eyes as

eye protection) is specified in the SDS when potentially

not utilised when exposed to slag

working with Slag I

Transportation Other road users and communities along Slag transportation is to occur with Receiving sites

between the transport mute may experience a vehicles equipped with covers with no I transport contractor

generator and deterioration of health if repeatedly exposed tears or significant deterioration. Covers

users, generating for a sufficiently long period must be secured around the perimeter to

dust reduce the potential air contact with slag transported

Slag is not appropriately stored, and runoff Slag to be stored on a low permeability Receiving site managed with the result that sediments base capable of limiting infiltration into the wash from the stockpile onto adjacent soils underlying soils.

Raw material and into adjacent water courses storage at site of reuse Storage area to be equipped with stonn

water control mechanisms to contain runoff as per statutory requirements

Page4of7

Activity Rllk Descrlpllan Adlon(1) to mlnlrilel~~~n~g~ the rllk Relponslblllty (Who Is reiPOftllble to carry out the action)

Slag particulates actuated during Access to the site to be limited only to Receiving site manufacturing processes using slag, which authorised personnel then come into dermal contact or contact with eyes, with a subsequent deterioration

Manufacturing in workers' health

using slag Workers to utilise all required PPE as specified in the SDS when potentially exposed to slag

Although the leach testing undertaken on Slag to be stored on a low penneability Receiving site slag indicates that the leachable fractions base capable of limiting infiltration into are below the Leachate Concentration the underlying soils. Threshold 1 of the Norms and Standards, mobilisation of low concentrations of salts

Storage of slag and metals during rainfall may accumulate In the soils underlying the storage site

at users -premise Although the leach testing undertaken on Receiving site potentially slag indicates that the leachable fractions generating are below the Leachate Concentration leachate during Threshold 1 of the Norms and Standards, rainfall mobilisation of low concentrations of salts

and metals during rainfall may migrate into the aquifer below the storage site

Although the leach testing undertaken on Storage area to be equipped with I Receiving Site slag indicates that the leachable fractions 1 stonn water control mechanisms to are below the Leachate Concentration

Page 5of7

Adlwlly Rllk Dllcl1pllon Adlon(a)to mlnlmluf ......... the rllk Relponllbay (Who .. ....,anslble to ClnY out the action)

Threshold 1 of the Norms and Standards, contain runoff as per statutory mobilisation of low concentrations of salts requirements and metals during rainfall into runoff that is then discharged to an adjacent water course may inaease salt load of the water course

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DECLARATION

I, ~~ l..e;'-'\.6" ~\11-". _hereby declare that I have read the completed Risk Management form and hereby confirm that the information is to the best of my knowledge true and correct.

Furthermore, I declare that I am fully aware of my responsibilities in terms of the Waste Exclusion Regulations, and that failure to comply with these Regulations may constitute an offence in terms of the National Environmental Management: Waste Act, 2008 (Act 59 of 2008}.

Applicant (Full names)

Designation

ANt:4w ~c~ P~N..tM. -~'t"er-J q,u. tr.... ~ ~ Nu. "-'\ Li , "-E"S l:ro.

c:::::::::_ /

~ ~~ln-1-Signature t '

Date --~--~-~--=;...:7--=.2..;;:0_;\fr~- Place ;fo+t~liu.~

[foR OFFICE USE ONLY

Date Received

Decision Taken Authorised

Reference Number

Not authorised (provide reason)

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