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 USE/S

Anglo American Platinum - Rustenburg Platinum Mines I Limited

Slag generated in the Smelter by the pyro-metallurgical i

processing, of PGM Concentrates from a variety of Anglo I American Platinum Concentrators _

I Dust suppression on unsurfaced area_s--------1

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) o Castable insulation slabs o Castable /machinable profiles o Aggregate in standard building products o Light building products

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

Road aggregate, surfacing and underburden

Construction fill

Backfill

Mineral fibres

Rock wool

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WASTE GENERATING FACIUTY ORFACIUnES

PHYSICAL ADDRESS OF FACILITY OR FACILITIES

GPS Co-ORDINATES OF WASTE GENERATING FACILITY OR FACILITIES

CONTACT PERSON

NAME

ADDRESS

Mortimer Smelter

Blackwell Highway

Swartklip, North West

NUMBER OF CORNERS

1

2

3

4

5

6

Sam Ngaka

P.O. Box 8208

Rustenburg

0300

LONGITUDE

27° 8'26.26"E

27° 8'35.48"E

27a 8'42.48"E

27° 8'45.90"E

27° 8'39.38"E

27° 8'28.80"E

EMAIL ADDRESS Sam.ngaka@angloamerican.com

TELEPHONE 014 786 1 091

LATITUDE

24 24°58'4.72"S

24°57'59.46"S

24°57'59.89"S

24 °58'8.25"S

24°58'12.82"S

24°58'1 0.52"S

• DETAILED DESCRIPTION OF Operations at Mortimer Smelter consist of a Larox WASTE GENERATING PROCESS filtration plant, a Drytech flash drying plant, Hatch 38 MW

furnace and a 60 1/h matte crushing plant. Mortimer Smelter operations does not convert furnace matte, as such, final matte is sulphide rich and sent to the Anglo Platinum Converting Process at Waterval Smelter In Rustenburg. Furnace slag is granulated, and processed through a slag mill, or transferred to the slag dump

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

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1 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.

I

I *A process flow chart must be attached to the process description ________ __,,

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RISK ASSESSMENT WITHOUT MITIGATION

Activity Risk Environmental ~ollu.k Slgnlftcance

Description RKeptara 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 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 I 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

signifiCBiltly 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 dermal 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 densHy of the slag the transportation

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Raw material storage at site of reuse

Manufacturing using slag

Storage of slag at users premise potentially

Assessment of Risk Risk

Description

Environmental Receptors

Impact Probability 1

Magnitude Duration Scale

is such that it is unlikely to be significantly mobilised

route experiencing prolonged, frequent

l and repeated exposure may lead to eye irritation

If slag is not appropriately stored and runoff managed with the result that sediments wash from the stockpile onto adjacent soils and into adjacent water courses

Site soils and Change in soil quality those onto which from baseline the slag is washed during rainfall

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

4

Change in surface I water quality from I baseline 3

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.

Although the • Soil Soil quality change leach testing • undertaken on slag indicates that

Groundwater from baseline 3 users

4 4 1

6 4 2

I

2 5 1

2 4 1

Significance

36

36

16

21

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Activity Risk Envlronlnental AsaaM1ent of Risk j Significance

Deacrlptlon Rac:eplora Probability I Magnitude Impact Duration Scale

generating the leachable 1 leachate fractions are during rainfall below the

Leachate Concentration Threshold 1 of the Norms 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 Leachate 2 6 4 2 24 Concentration Threshold 1 of the Norms and Standards, mobilisation of low concentrations of

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Activity Risk Environmental Assessment of Rlak I Significance

Description Receptors Impact Probability Magnitude Duration Scale

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 wa~ ~ course

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

~ MAGNilVDE ISeveritl')

Criteria I DURATION

v hlgiJ_ 5- Permanent_{looger than 10 yt;ars} I 4- long-term {5 to 10 ~ears) ,

6-Moderate 3- Medium-term ( 12 months to 5 years) 4-Low 2 - Short-term LO to 12 months) 2-Minor 1 - Immediate

SCALE PROBABILITY (U kellhood} 5 - International 5- Definite 4- National 4 ·Highly J'ID)bable 3-Regional 3 - Medium probability 2-Local 2 - Low probabilit.L 1- SHe only 1 - Improbable I 0-None 0-None I

Mqnltude Magnitude measures the size of the Impact

Duration Duration refers to the lifetime of the Impact I.e. how long it wllllaat

Scale The scale refers to the extant of the impact.

Probability The probability refers to the chance of Impact to occur. The potential Impact could be moat likely to occur, unlikely,

etc.

Assessment of Significance of imoact

Significance rating of the potential Impacts Hlustrates 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: Riding Description

SP>BO Indicates high An impact which could influence the decision about whether or environmental not to proceed with the activities regardless of any possible significance ·mitigation.

SP30- Indicates moderate An Impact or benefit which is suff'ICienUy Important to require 80 environmental management and which could have an influence on the

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

environmental on or require modification of the activities. significance

+ Po•ltlva Impact An impact that Is likely to result In positive consequences/effects

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~ \.....a;I..\E" ~'{"'\""h I, 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 offe~ce In terms of the National Environmental Management: Waste Act, 2008 (Act 59 of 2008).

A.Je.. LC) """"'~c.A ,.._) ~ c....AT'i N '-' M -

~~T~~v~ (1~1NC..C-"-"'. 1\A,~ \.:TI:) . Applicant (Full names) ---=------=---_;___ ________ _

Designation

~~~~. Signature

9--\ Av.J:;...v...\ < ~ 8" ,::roH~"tu ~ Date----------- Place----

I FOR OFFICE USE ONLy

Date Received

Decision Taken Authorised Not Authorised (provide reasons)

Reference Number

Page 9 ofD

I

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 TOBE BENEFICIATED

BENEFICIAL USE/S

I Anglo American Platinum- Rustenburg Platinum Mines Limited

I 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 Mortimer Smelter

Dust suppression on unsurfaced areas

Abrasive for pneumatic air blasting

I-

• 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

1 Road aggregate, surfacing and underburden

Construction fill

Backfill

Page 1 of&

Mineral fibres

Rock wool

MSDS ATTACHED IF YES HAZARDOUS

WASTE GENERATING Mortimer Smelter FACILITY

Blackwell Highway

PHYSICAL ADDRESS Swartklip

North West

GPS CO-ORDINATES NUMBER OF LONGITUDE LATITUDE

OF WASTE CORNERS

GENERATING FACILITY 1 27° 8'26.26"E 24 24°58'4.72"5 (EG. 60° 29' 30" Latitude; 34° 20' 15" Longitude) 2 27° 8'35.48"E 24°57'59.46"5

3 27° 8'42.48''E 24 °57'59.89"8

4 27° 8'45.90"E 24°58'8.25"5

5 27° 8'39.38"E 24°58'12.82"5

6 27° 8'28.80"E 24°58'10.52"5

P .0. Box 8208

POSTAL ADDRESS Ru~enburg

0300

CONTACT PERSON Sam Ngaka

TELEPHONE 014 7861091 CELL:

EMAIL I Sam.ngaka@angloamerican.com FAX:

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RISK MANAGEMENT PLAN

AcUvlty Risk Dllcrtpllan Actlon(l) to rinlmllll malllgl the rllk Responsibility (Who Is responsible to carry out the don)

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 Workers 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 -- --

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

between the transport route may experience a vehicles equipped with covers with no 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 reduce the potential air oontact with slag

dust 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 storm

water control mechanisms to contain runoff as per statutory requirements

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Adlvlty Rllk Delcrfpllan Acllan(l) to mlnlmllll ........ the rllk Rllponllblllty (Who Is l"'lppMMbbe to carry aut 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 dennal 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 Nonns and Standards, mobilisation of tow concentrations of salts

Storage of slag and metals during rainfall may accumulate

at users in the soils underlying the storage site

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 Nonns 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 Receiving site slag indicates that the leachable fractions stonn water control mechanisms to are below the Leachate Concentration

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l Risk Description

Threshold 1 of the Norms and Standards, 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

Actlon(s) to mlnlmlseiiiWIIg8 the rtsk

contain runoff as per statutory requirements

I Responsibility (Who Is r11ponslble to carry out the action)

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DECLARATION

I, Go~ ~\.olE" ~l"ttr\. 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 Nationall;nvlronmental Management: Waste Act, 2008 (Act 59 of 2008}.

A..Jc;.w .Av.'=-.a.u:.AtU ()~N.A.oM -

Applicant (Full names) -~"'t't::!\.1 ~'-\.~C.. () c...A:t-.~ M ·~ ~b Designation

[ FOR OFFICE USE ONLY

Date Received

Decision Taken Authorised Not authorised (provide reason}

Reference Number

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