environmental affairs Department: Environmental Affairs REPUBLIC OF SOUTH AFRICA

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

APPLICANT . Anglo American Platinum - Rustenburg Platinum Mines Limited

1--

WASTE STREAM OR PORTION Slag generated in the Smelter by the pyre-metallurgical OF A WASTE STREAM TO BE processing, of PGM Concentrates from a variety of Anglo EXCLUDED FROM THE American Platinum Concentrators DEFINITION OF WASTE

Dust suppression on unsurfaced areas

BENEFICIAL USE/S 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

Mineral fibres

Rock wool

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WASTE GENERATING FACILITY Waterval Smelter ORFACIUTIES

I

PHYSICAL ADDRESS OF Portion 14 of Waterval 303 JQ, Anglo Converting FACILITY OR FACILITIES Process

Rustenburg, North West

GPS CO-ORDINATES OF WASTE NUMBER OF LONGITUDE LATITUDE GENERATING FACILITY OR CORNERS FACILITIES

1 27°18'56.56"E 25°40'8.87"8

2 27°19'5.4611E 25°40'11.63"8

3 27°19'5.8411E 25°40'15.32"8

4 27°18'58. 77"E 25°40'15.82"8 -

5 27°18'57 .57"E 25°40'18.24"8 -

6 27°18'49.92"E 25°40'17.38"8

7 27°18'51.27"E 25°40'11.26"8

CONTACT PERSON

NAME Diale Mokwena

ADDRESS .Anglo American Platinum limited, Waterval Smelter (Pty) Ltd

P.O. Box404

Kroondal

0350

EMAIL ADDRESS diale.mokwena@angloamerican.com -TELEPHONE +27 83 4148475

"'DETAILED DESCRIPTION OF The wet concentrate is dried in flash dryers. Thereafter WASTE GENERATING PROCESS the dry concentrate is fed into the primary furnaces. The

furnace matte is tapped and then granulated (Waterval). The furnace slag is milled and floated to generate a concentrate recycle or stockpiled directly if essentially barren of pay metals.

The furnace matte is then fed to the Anglo Platinum Converting Process (ACP) where the matte is upgraded through removal of the iron (and sulfur) to form Waterval Converter Matte (WCM). The WCM is bottom cast, slow cooled over several days, then crushed and forms the final product from the smelters. The converter matte is transported to the Rustenburg Base Metals Refinery

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f PRODUCTION PROCESS FLOW CHART ATTACHED

WASTE CLASSIFICATION

IF WASTE IS HAZARDOUS LIST THE HAZARDS OF THE WASTE

(RBMR) for further processing. The converter slag is granulated and recycled to a Slag Cleaning Furnace (SCF) at Waterval for recovery of the base and precious metals. The SCF matte is recycled to the ACP, while the SCF slag is milled and floated to produce a concentrate recycle.

YES

HAZARDOUS

Slag does not represent chronic or acute aquatic toxicity and is therefore not classified as being Environmentally hazardous in terms of SANS 1 0234. 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 MITIGATION

Activity Risk 1

Environmental ~of Risk 1 Significance

Deacrlptlon Receptcn -Impact Probability Magnitude Duration Scale

I

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 I lead to skin irritation users storage Protective through repeated and stockpile Equipment Is not frequent exposure. potentially utilised when generating working with Slag I Air Site workers 2 6 5 1 24 dust to which and if continuous prolonged, ffequent 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

Transportation and communities communitieS along

between along the the transportation

generator and transport route route experiencing may experience a prolonged dermal 1 4 2 3 9 users, deterioration of contact with slag may

generating health if lead to skin irritation

dust repeatedly through repeated and exposed for a frequent exposure.

I

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Risk

Deacrlptlon

Environmental Receptors

Impact

sufficiently long Other road users and period, within the communities along context that the

Assessment of Risk

Probability Magnitude Duration I Scale

I

density of the slag the transportation is such that it is route experiencing 1 unlikely to be prolonged, frequent

2 6 3

and repeated significantly exposure may lead to mobilised

l------+-------~~,--- 1 eye Irritation

If slag is not Site soils a~hange in soil quahty appropriately those onto which from baseline stored and runoff the- slag is 4 4 4 1

result that rainfall

1 Significance

11

36

Raw material storage at site of reuse

managed with the washed during I sediments wash 1----------------+-----~-----i------l------------- -1 from the stockpile Water courses Change in surface I

Manufacturing using slag

onto adjacent into which slag is water quality from soils and into spilled or washed baseline 3 adjacent water courses

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

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.

6 4 2 36

2 5 1 16

Page 5 of 10

Activity Risk Environment.~ As.........tdRisk Significance l Dascripllon R8ceptonl

Dundlon I Scale Impact Probability MagnitUde

Storage of Although the • Soil Soil quality change slag at users leach testing • Groundwater from baseline premise undertaken on users potentially slag indicates that generating the leachable leachate fractions are during rainfall below the

Leachate Concentration Threshold 1 of the Norms and 3 2 4 1 21 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 I

the leachable fractions are 2 6 4 2 24 below the Leachate Concentration TIYeshold 1 of the Norms and

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

Crtterta MAGNnuDE {SeVI!o tY) -- DURAnQfll

1 0 • Very high 5- Pennanent(longer than 10 ~ears)

~ Hish 4 ·Long-term (5 to 10 years} 11-Moderate 3 ·Medium-term l12 months to 5 years) 4-Low 2 ·Short-term IO to 12 months) 2-Minar 1 - Immediate

SCALE PROBABILITY lUkeUhQOd) 5-'iriternatlonal II· Definite 4-N.Uonal 4 • Highly probable 3-Regional 3- Medlump robabilitv 2-Loc* 2 • Low probability. 1· Slta only 1-lmprobable 0-None 0-None

MagnitUde . M.gnltude meaures the slz.e of the Impact

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

Scale The scala refers to the extent of the Impact.

Probllblllty The probllblllty refers to the chance of Impact to occur. The pobmtlal Impact could be mo.t II kaly to occur, unlikely, etc. Assessment of Sianificance of impact

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:

Rating Description

SP>eo 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 sufficiently important to require 60 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. signifJCance

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

Page 9 of10

I

I, OtoRboN l.e:s~e:-~in1. 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 Environmental Management: Waste Act, 2008 (Act 59 of 2008).

I

Applicant (Full names)

.....,&t\.0 ~sQ..tc.A...J 0&.A-"TlNAM. ...

(k~.,.e:N~~ {)c.A-TtN&.tM. M,r-.6l L-tt>

---~""' lS : \ ~ ...JtUtr\,.. Designation - --- ----------------

Date

FOR OFFICE USE ONLY

Date Received

Decision Taken Authorised Not Authorised (provide reasons)

-----~----_.--~~--------------~-~---4-

I Reference Number

Page10 of10

environmental affairs Department: Environmental Affairs REPUBLIC OF SOUTH AFRICA

RISK MANAGEME:NT PLAN IN TERMS OF REGULATION 10 OF WASTE EXCLUSION REGULATIONS

-APPLICANT Anglo American Platinum- Rustenburg Platinum Mines

Limited

SOURCE(S) OF WASTE Slag generated in the Smelter by the pyro-metallurgical processing, of PGM Concentrates from a variety of Anglo American Platinum Concentrators .

WASTE TO BE Slag contained in the waste facility located at the BENEFICIATED Waterval Smelter

Dust suppression on unsurfaced areas

BENEFICIAL USE/S 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 of&

Mineral fibres

Rock wool r-

BENEFICIAL USEIS Cement and Clay bricks

Dust suppression on unsurfaced roads

Abrasive for pneumatic air blasting

Cement foam for thermal or acoustic Insulation

MSDS An ACHED IF YES HAZARDOUS

WASTE GENERATING Waterval Smetter FACILITY

Portion 14 of Waterval 303 JQ PHYSICAL ADDRESS

Anglo Converting Process

GPS CO-ORDINATES OF NUMBER OF LONGITUDE LATITUDE

WASTE GENERATING CORNERS

FACILITY (EG. 60° 29' 30" -

1 27.18'56.56"E 25°40'8.87''8 Latitude; 34° 20' 15" - -Longitude 2 21• 19'5.46"E 25°40'11.63"8

-3 27.19'5.84"E 25°40'15.32"8

4 27°18'58. 77"E 25°40'15.82"8

5 27°18'57.57"E 25°40'18.24"8

6 27.18'49.92"E I 25.40'17.38"8 -

7 27.18'51.27"E 25°40'11 .26"8

Anglo American Platinum limited, Waterval Smelter (Pty) Ltd

POSTAL ADDRESS P.O. Box404

Kroondal, 0350

CONTACT PERSON Diale Mokwena

TELEPHONE CELL: 083 414 8475

EMAIL diale.mokwena@angloame FAX: rican.com

Page2 of ll

RISK MANAGEMENT PLAN

Activity Risk Delcltpllon Actlon(l) to mlnlmllel rnn1111 the risk Responsibility (Who Is responsible to carry out the action)

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 dermal exposure and risks to eyes as mask, overall and specified in the SDS when potentially eye protection) is exposed to slag not utilised when 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 for a sufficienUy long period must be secured around the perimeter to

users, generating reduce the potential air contact 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 under1ying soils.

I 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 Dllcrlpllon Adan(l) to mlnlmllli m.llgl the rllk Rllpanllblllly (Who .. I'IIIJOftllble to C111Y out the action)

Slag particulates actuated during Access to th~ 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

r-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 permeability 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 low concentrations of salts

Storage of slag and metals during rainfall may accumulate

at users in the soils under1ying 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 -

Page4of8

Activity Risk Dascrtptlon Actlon(s) to mlnlmllel manage the risk Responsibility (Who Is reeponslble to carry out the action)

Threshold 1 of the Nonns 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 increase salt load of the water course

Pagesote

I DECLARATION

I, G..Dil.Oo ~ \...Q'""'c; ~ M ~ hereby declare that I have read the completed Risk Management fonn and hereby confinn that the infonnation is to the best of my knowledge true and correct

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

A,jC.\,0 ~...,_,~ Q~,. t-JU~­

Applicant (Full names) ~~~t.c.. P ~, ..... u.~IV\,I"Q. L&o.

Designation -~-~ __ ... _ ... _'T'_~ ____ : _ .. _\ _a:.t\ __ ""-_~_~_-_______ _

Cf32 .,._~ Signature -~--=--.......c...----------------Date

I FOR OFFICE USE ONLY

Date Received

Decision Taken Authorised

r-­

Reference Number

I Not authorised (provide reason)

Pageton