BHP BILLITON NICKEL WEST · 2020. 4. 20. · BHP Billiton Nickel West Pty Ltd (BHP NiW) currently...

BHP BILLITON NICKEL WEST MT KEITH SATELLITE PROJECT Works Approval Application Supporting Information, January 2020

BHP MKS Works Approval Application – Supporting Information

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Table of Contents

1.Introduction 1

2.Purpose of Document 1

3.Premises Details 2 3.1 Tenure 2

3.2 Prescribed Premises Categories 2

3.3 Other approvals, legislation and guidance 5

3.4 Stakeholder Consultation 7

4.Description of Proposed Activities 8

4.1 Scope of works 8

4.2 Timing and implementation 8

5.Siting and Location 13 5.1 Sensitive Land Uses 13

5.2 Ecological receptors 13

6.Existing Environment 15 6.1 Climate 15

6.2 Landforms and soil types 15

6.3 Surface and groundwater 15

6.4 Contaminated site status 16

6.5 Flora and vegetation 16

6.6 Fauna and fauna habitats 17

6.7 Aboriginal and European heritage 17

7.Emissions and Discharges 19 7.1 Air Emissions 19

7.1.1 Odour 19

7.1.2 Dust 19

7.1.3 Noise 19

7.2 Waste and Leachate 19

7.3 Wastewater (Sewerage) 20

7.4 Water management 20


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7.5 Groundwater 20

7.6 Dangerous goods and hazardous substances 20

7.7 Explosives 21

8.Risk Assessment 22 8.1 Monitoring 22

9.Fee calculation 25

10.References 26

ATTACHMENT 1A:Proof of Occupier Status 28

ATTACHMENT 1B:ASIC Company Extract 29

ATTACHMENT 2A MKS Premises Map 31

ATTACHMENT 2B Monitoring Locations 33

ATTACHMENT 2C Proposed Prescribed Premises Spatial Files 35

ATTACHMENT 3A Proposed Activities 36

ATTACHMENT 3B Clearing Area – Not Applicable 37

ATTACHMENT 3CNot Applicable 38

ATTACHMENT 4 Biosurveys – Not Applicable 39

ATTACHMENT 5A Other Approvals – EPBC2017/8001 40


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ATTACHMENT 5B Other Approvals – MS1087 42

ATTACHMENT 5C Other Approvals – MP (Registration ID 76846) 44

ATTACHMENT 6A Emissions & Discharges - NA 46

ATTACHMENT 6B Waste Acceptance – NA 47

ATTACHMENT 7 MKS Siting & Location 48

ATTACHMENT 8 Supporting Documents 50

ATTACHMENT 9 Fee Calculation 51

ATTACHMENT 10 Sensitive Information - NA 52

List of Tables

Table 1: Prescribed Premises Categories for MKS Licence Application ................................................................ 2 Table 2 MKS Project Infrastructure/Activities ...................................................................................................... 9 Table 3 Other activities; non prescribed........................................................................................................... 10 Table 4: Risk Assessment ............................................................................................................................... 23 Table 5: Fee calculation .................................................................................................................................. 25

List of Figures

Figure 1 MKS location. 3 Figure 2 MKS Tenements, tenure and prescribed premises boundary. 4 Figure 3 MKS Indicative site layout. 6 Figure 4 Indicative Bulk fuel storage facility layout. 12 Figure 5 Sensitive receptors and heritage sites in proximity to proposed MKS premises boundary. 18


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1. Introduction

BHP Billiton Nickel West Pty Ltd (BHP NiW) currently operates the Mt Keith Satellite (MKS) Project, a satellite operation to the existing Mt Keith Mine, approximately 720 kilometres (km) northeast of Perth and 430 km north of Kalgoorlie in the North-Eastern Goldfields region of Western Australia (WA). The nearest population centre is Leinster, located approximately 80 km to the south of the proposal. The MKS Project intersects the Shires of Leonora and Wiluna (Figure 1).

The MKS Project was approved under Part IV of the Environmental Protection Act 1986 (WA) (EP Act) by Ministerial Statement 1087 (MS 1087) issued on 28 December 2018. An approved Mining Proposal (Registration ID 76846) in accordance with the Mining Act 1978 also applies to the MKS Project.

Construction of the MKS Project commenced in February 2019, with first ore anticipated late 2019 calendar year. The mined ore will be transported by road trains via a haul road, for processing at the existing Mt Keith Mine, located approximately 20 km north of the MKS satellite operation.

A Section 45c application to increase the development envelope (increase of 6 ha) and to increase the clearing area (191 ha) was submitted to the Department of Water and Environmental Regulation (DWER) on 3 December 2019. A Mining Proposal (Application ID 84527) to support these minor changes was submitted to Department of Mines, Industry Regulation and Safety (DMIRS) on 23 December 2019 to allow for additional disturbance and a revised layout of facilities.

2. Purpose of Document

BHP NiW has identified that MKS requires registration as a Prescribed Premises under Part V of the EP Act with respect to activities to support the mining operations. The review and risk assessment of proposed activities identified some additional activities, which by nature or volume do not currently require licencing and are discussed briefly in Section 8. This document provides supporting information to accompany BHP NiW’s Application Form: Works Approval, under Part V of the EP Act for those activities that meet thresholds under the EP Act that require licencing. This application for prescribed activities includes:

used tyre storage facility crushing/screening of waste rock for construction purposes putrescible waste/landfill facility.

The risk assessment has considered those activities which require environmental management but are not of a volume, production rate, nor design capacity that would require part V licencing, including:

bulk fuels storage facility bioremediation facility vehicle and plant repair and servicing reverse osmosis plant (RO Plant) wastewater treatment and storage.

In accordance with the Application Form: Works Approval, under Part V of the EP Act, this supporting information includes the following attachments:

Attachment 1A Proof of occupier status ( Appendix A) Attachment 1B ASIC Company Extract (Appendix B) Attachment 2A Map of Premises (Section 2; and Appendix C) Attachment 2B Map of Monitoring Locations (Section 8.1) Attachment 2C Premises Spatial Files Attachment 3A Proposed Activities (Section 4) Attachment 3B Clearing Area – Not Applicable (refer Section 3.3 MS 1087)


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Attachment 3C Not Applicable Attachment 4 Biological Surveys - Not Applicable Attachment 5A Other Approvals – EPBC 2017/8001 Attachment 5B Other Approvals – MS 1087 Attachment 5C Other Approvals – Mining Proposal (Registration ID 76846) Attachment 6A Emissions and Discharges (Section 7) Attachment 6B Waste Acceptance - Not Applicable Attachment 7 Siting and Location (Section 5; Figure 5; and context Figures 1-4) Attachment 8 Other relevant information ((this) Supporting Document) Attachment 9 Fee Calculation (Section 9).

3. Premises Details

3.1 Tenure

MKS, as a satellite project to the Mt Keith mining operations, is located on mining tenements L36/110, L36/206, M36/183, M36/184, M36/185, M36/246, M36/286, M36/288, M36/294, M36/399, M36/422, M36/658, M36/677, M53/166, M53/217 and M53/218, as shown in Figure 3. Refer to Attachment 1A for tenement register extract as proof of occupier status. BHP NiW has adjacent Prescribed Premises at Mt Keith (L6453/1990/12), Cliffs (under review by DWER), and Leinster (L4612/1989/11) mining operations (Figure 1). The proposed Prescribed Premises boundary include tenements M36/183, M36/184, M36/185, M36/246, M36/286, M36/288, M36/399, M36/422 as shown in Figure 1 (Attachment 2A) and provided as spatial files (Attachment 2C).

3.2 Prescribed Premises Categories

BHP NiW is seeking a licence for the following prescribed premises categories listed in Table 1. Table 1: Prescribed Premises Categories for MKS Licence Application

Category Number

Description Production rate / Design Capacity

MKS’ Activity

12 Screening, etc. of material: premises (other than premises within category 5 or 8) on which material extracted from the ground is screened, washed, crushed, ground, milled, sized or separated.

50 000 tonnes (t) or more per year

1,000,000

57 Used tyre storage 100+ tyres Up to 250 tyres

89 Putrescible landfill site: premises on which waste (as determined by reference to the waste type set out in the document entitled “Landfill Waste Classification and Waste Definitions 1996” published by the Chief Executive Officer, as amended from time to time) is accepted for burial.

More than 20 but <5,000 tpa

~300 tpa

Not required:

73 Bulk storage of chemicals, etc: premises on which acids, alkalis or chemicals that (a) contain at least one carbon to carbon bond; and (b) are liquid at STP (standard temperature and pressure), are stored.

>1,000 m3 in aggregate

5 x 110 kL

85 Sewage facility - premises (a) on which sewage is treated (excluding septic tanks); or (b) from which treated sewage is discharged onto land or into waters

20-100 m3/day 20 m3/day

Mt Keith Satellite

Wiluna

Meekatharra

Mt Keith

Leinster

Kalgoorlie

Coolgardie

Leonora

WanjarriNature Reserve

COOLGARDIE,SHIRE OF

MOUNTMAGNET,SHIRE OF

MOUNTMARSHALL,SHIRE OF

SANDSTONE,SHIRE OF

MUKINBUDIN,SHIRE OF

CUE, SHIRE OF

MEEKATHARRA,SHIRE OF

LAVERTON,SHIRE OF

YALGOO,SHIRE OF

YALGOO,SHIRE OF

WILUNA,SHIRE OF

KALGOORLIE-BOULDER,CITY OF

LEONORA,SHIRE OF

MENZIES,SHIRE OF

YILGARN,SHIRE OF

WESTONIA,SHIRE OF

50,000

50,000

200,000

200,000

350,000

350,000

6,60

0,00

0

6,60

0,00

0

6,75

0,00

0

6,75

0,00

0

6,90

0,00

0

6,90

0,00

0

7,05

0,00

0

7,05

0,00

0

³ MKS LOCATION

Figure 1T. Richards

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0 30 60 90 120

Kilometres

Coordinate System: GDA 1994 MGA Zone 51

!(

!(

MKS

Western Australia

LeinsterMount Keith

PERTH

KALGOORLIE

Location Map

M53/166

M53/217

M53/218

M36/184

M36/658

M36/286

M36/183

M36/467

M36/246

M36/422

M36/294

M36/185

M36/288

M36/677

M36/399

L36/206

L36/110

260,000

260,000

270,000

270,000

6,96

0,00

0

6,96

0,00

0

6,97

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0

6,97

0,00

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6,98

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0

6,98

0,00

0

³

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Kilometres

Legend

MKS Prescribed Premises

MKS Disturbance Area

Misc. Licences

Mining Leases

Author: T Richards Date: 8/01/2020

BHPCoordinate System: GDA 1994 MGA Zone 51

Nickel West

MKS Tenements and Prescribed Premises boundary

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Figure 2


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3.3 Other approvals, legislation and guidance

Environment Protection and Biodiversity Conservation Act 1999 MKS was referred and assessed under the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act) (Cth). The project does not significantly impact on any Matters of National Environmental Significance and the MKS Project was deemed ‘not a controlled action’ under EPBC decision 2017/8001. Environmental Protection Act 1986 – Part IV MKS was referred and assessed under Part IV of the EP Act. Approval has been granted under MS 1087. A section 45c under the EP Act was submitted 3 December 2019 to make a minor increase the development area with an increase to the clearing area within. Mining Act 1978 Mining activities are undertaken in accordance with Mining Proposal (Registration ID 76846) pursuant to the Mining Act. In December 2019 an amendment to the MP was submitted to DMIRS to slightly increase the development area and clearing area (Application ID 84527) to be consistent with s45c (EPA) submission. Rights in Water and Irrigation Act 1914 (RIWI Act) The MKS Project will utilise the existing licensed borefields in accordance with the current RIWI Act licence conditions:

GWL63902 (current annual water entitlement of 1,095,000 kL/year) to allow for dewatering from Six Mile Well and Goliath pits.

Mt Keith operations borefields as per the revised Groundwater Well Licence Operating Strategy (GWOS) (BHP 2018), GWL69507 Albion Downs Borefield; GWL50299 Caprock Borefield; GWL60382 South Lake Way Borefield; GWL60628 Village Borefield; and GWL58596 Mt Keith Pit Dewatering. See section 8.1 in regards to groundwater monitoring under the GWOS.

Other approvals Landfill waste is transported to and disposed of in the Mt Keith landfill (DWER Licence L6453/1990/12). Hydrocarbon or other chemical spills will be contained and any contaminated material (e.g. rags, spill kit materials, contaminated soil) will be removed for treatment and disposal at an appropriately licensed hydrocarbon bioremediation facility (e.g. NMK); landfill or other treatment facility.

The Minister for Indigenous Affairs has granted consent under s18 of the Aboriginal Heritage Act 1972 to disturb heritage sites located within the Project area. Dangerous Goods licence for storage of fuel - Dangerous Goods Safety (Storage and Handling of Non-Explosives) Regulations 2007. The proposed storage of diesel will exceed the manifest quantity (100,000 L) and accordingly a Dangerous Goods licence will be required (application in process). An explosives storage licence (Dangerous Goods Safety (Explosives) Regulations 2007). Initially explosives required for blasting have been sourced from existing licensed storage at NMK. As the mining operation increases at MKS so will the need for explosives delivery to the operation. A dedicated explosive storage facility is now proposed as part of the revised Mining Proposal. An explosives storage and transport licences will be obtained.

Mobile CrusherLocation 1

Mobile CrusherLocation 2

Landfill

Used Tyre Disposal

Used Tyre Storage

Used Tyre Storage

SMW pit

MobileEquipmentService Bay

Explosiveyard

Laydownyards

Laydownyards

Laydown yards

Waste RockLandform

Goliath Pit

Sourthcreek

crossing

ExplosivesAccess road

TurkeysNest

Topsoil

Topsoil

Topsoil

Topsoil

Topsoil

Topsoil

Topsoil

DrainageControl

DrainageControl

DrainageControl

DrainageControl

DrainageControl

DrainageControl

DrainageControl

SouthAccessRoad

Northcreek

crossingFence Buffer

Fence Buffer

Fence Buffer

Fence Buffer

Fence Buffer

Haul road

ROM

Monitoring Bore

M36/246

M36/399

M36/183

M36/184

M36/185

M36/285

M36/286

M36/288

M36/422

L36/110

M36/631121

121

121

121

121

121

-27

-27

-27

-27

-27

-27

³ MKS IndicativeSite Layout

Figure 3T. Richards

Legend

MP84527

Granted Tenements

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Projection Details: MGA Zone 51

0 0.5 1 1.5 2

Kilometres


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3.4 Stakeholder Consultation

BHP NiW has undertaken extensive consultation for MKS during preparation and assessment of Environmental Review Document submitted under Part IV of the EP Act. The key stakeholders identified in this process included:

Department of Biodiversity, Conservation and Attractions (DBCA)

Department of Mines, Industry Regulation and Safety (DMIRS)

Department of Planning, Lands and Heritage (DPLH)

Department of Water and Environmental Regulation (DWER)

Environmental Protection Authority (EPA)

Shires of Wiluna and Leonora

Tjiwarl Native Title Holders (Tjiwarl).

BHP NiW aims to consult with all identified stakeholders throughout and beyond the approvals process. The objectives for this consultation are as follows:

engage appropriately with stakeholders to ensure that all stakeholders understand the potential aspects and benefits of the development of the Project and the approvals required to successfully develop the Project

ensure that stakeholders understand that the approvals being sought are for the development of a satellite deposit to sustain the existing Mt Keith operation

communicate with stakeholders in a clear and timely manner, consider the interests of and impacts on our stakeholders.

Ongoing consultation will be vital to ensure expectations are met with various stakeholders throughout the Project implementation and closure phases. BHP NiW maintains a Stakeholder Engagement Register so that stakeholder consultation and commitments can be recorded and tracked.


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4. Description of Proposed Activities

4.1 Scope of works

To operate MKS the following prescribed activities/facilities are required: 1. crushing/screening 2. used tyre storage facility 3. putrescible waste/landfill facility.

The following activities were assessed but do not meet the volumes or category characteristics that would require a licence under Part V Prescribed Premises:

1. bulk fuels storage facility 2. wastewater treatment plant (WWTP) 3. vehicle and plant repair and servicing 4. reverse osmosis plant (RO Plant).

A summary of the infrastructure, descriptions and specification for MKS is provided in Table 2.

4.2 Timing and implementation

The estimated operating period of the project / premises (e.g. based on estimated infrastructure life) is 20 years. BHP NiW will commence construction immediately upon receipt of the Works Approval. The anticipated construction schedule, pending approvals, is:

Commence construction Q1 2020 Practical completion Q2 2020 Commissioning Q2 2020 Operation Q2 2020.


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Table 2 MKS Project Infrastructure/Activities

Prescribed Activities

Infrastructure/Source of Emission

Description/specification

1 Mobile crushing/screening plant

Key characteristics One mobile crushing/screening plant Location Location 1: Run of mine (ROM); Location 2 waste rock landform (WRL) (refer Figure 3 for both indicative locations); M36/246 and/or

M36/422 Design capacity Category 12; 1,000,000 t/pa mobile crushing/screening unit Expected throughput 1,000,000 t/pa intermittent use Controls Fitted with spray nozzles to minimize dust emissions at the head drum, discharge point of the main conveyor and at the feed point

Stormwater infrastructure (earthen bunds) constructed as required to prevent stormwater ingress into the mobile crushing and screening plant operational areas Located at least 50 metres from drainage lines Located at least 500 m from Wanjarri Nature reserve (ESA)

Outputs Dust; noise; crushed/screened waste rock for use in construction of WRL, ROM, buttressing and wholly within the same tenure areas Proposed

management/controls Dust and noise is not expected to reach sensitive receptors, however dust will be managed on site with spray nozzles to minimize dust emissions at the head drum, discharge point of the main conveyor and at the feed point; operational dust suppression water carts on access roads

2 Used tyre storage

Key characteristics Used tyres will be stored prior to either offsite removal by an appropriately licenced contractor for recycling; or disposal within the WRL Location Used tyres will be stored adjacent to the Mobile Equipment Service Bay and Laydown Yard (indicative locations in Figure 3) M36/184 Design capacity The storage areas will be able to hold a maximum of 250 tyres Storage facility

characteristics and management

Used tyres will be stored on a 0.1 ha earthen pad, with the tyres stacked to a height of 4 m (as per Department of Fire and Emergency Services (DFES) guidance 2019) with tyres stacked on their side walls. Used tyre stacks will be stored no less than 6 m from any other tyre stacks. Used tyres will be stored on site until there is a full load for transport off site if recycling is an option; or transported for disposal within the WRL

Proposed management/controls

Tyre stacks, firefighting equipment and control of firefighting water run-off will be established in accordance with the DFES Guidance Note GN02: Bulk Storage of Rubber Tyres including Shredded and Crumbed Tyres (DFES, 2019). Where opportunity for tyre recycling is identified, tyres will be stored for recycling but in the interim will be repaired if possible, stored for landfill where not suitable for repair and no opportunity for recycling exists

3 Putrescible waste/landfill facility

Key characteristics The landfill is proposed to have a capacity of approximately 300 tonnes per annum of putrescible and inert waste Location The landfill site will be on the WRL; active area approx. 0.5 ha Figure 3; M36/422 Expected throughput 300 t/pa Inputs Putrescible, inert waste, tyres, hydrocarbon contaminated soils and waste meeting Class II criteria. Tyres may be added to the waste cell

but more usually,will be progressively added to the WRL according to the commitments in Section 7.2 Outputs Leachate and potentially contaminated stormwater


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Waste management will be undertaken in accordance with domestic and industrial waste management according to the existing NMK site procedures and NiW-ENV-PLN-005 BHP NiW Waste Management Plan. Leachate and storm water will be contained within the WRL cells. Cells to be at least 100 m from WRL edge and minimum 10 m from natural ground level; 500 m from ESA (Wanjarri nature Reserve). Burial of tyres shall only take place within the WRL shown in the Indicative Site Layout Map in Figure 3 (M36/422 & M36/183, M36/185).

Tyres shall only be landfilled in batches separated from each other by at least 100 mm of soil: a) each consisting of not more than 40 cubic metres of tyres reduced to pieces; or b) separated from each other by at least 100 mm of soil and each consisting of not more than 100 whole tyres.

Cell locations where tyres are to be buried will be surveyed and the latitude and longitude recorded.

Table 3 Other activities; non prescribed.



1 Bulk fuels storage facility

Key characteristics

Fuel will be storage in a dedicated bunded hardstand facility (Bulk Fuel Storage Facility) immediately adjacent to the unloading and refuelling bay, consistent with the requirements of AS1940-2018. Hardstand work areas will be constructed from compacted fill. Bunding will consist of windrows constructed from compacted low permeability material and raised entry/exit points to prevent ingress of stormwater and discharge of contaminated stormwater to surrounding areas. All contaminated stormwater will be retained within a stormwater sump designed to contain 1:10 year 24 hour rainfall event (with 300 mm freeboard). The sump will be located within the bunded area. Concrete barriers will be installed to prevent vehicular impact to fuel storage and refuelling facility. Refuelling facilities will be fitted with automatic cut-off and emergency stop systems, fire extinguishers and mobile spill kits. Hydrocarbon or other chemical spills will be contained and any contaminated material (e.g. rags, spill kit materials, contaminated soil) will be removed for treatment and disposal at an appropriately licensed hydrocarbon bioremediation facility (e.g. NMK); landfill or other treatment facility. Coolants, lubrication and hydraulic oils for servicing the mobile fleet will be stored separately within the mobile workshop.

Location The BFSF will be located adjacent to the unloading and refuelling bay – Figure 3 Storage Tank Design The storage tanks will be self-bunded diesel-only storage tanks Australian Standard 1940 – 2017 compliant. Refer Figure 5 for layout. Associated infrastructure Pipework associated with fuel storage facilities will be constructed with steel and be above ground. Pipework that is at risk of vehicle strikes will be

protected by bollards and/or earthen bunds. All transfer pumps will be fitted with pressure transmitters. Tanks will be refilled via road-train. Tank refuelling points will be located over an apron to provide containment of any spilled fuel. Any spilled fuel will be removed to the Bioremediation Facility.


Spills during refilling will be managed with automatic cut-off systems and the use of mobile spill kits in accordance with the requirements of AS1940. Any potentially contaminated material will be collected and transported to NMK or other appropriately licenced hydrocarbon bio-remediation facility for treatment. Groundwater will be monitored for hydrocarbons in the vicinity of hydrocarbon storage areas.


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2 Mobile Equipment Service Bay

Key characteristics To provide breakdown, servicing and minor planned maintenance in purpose-built facilities, with major maintenance works continuing to occur at the existing NMK facility

Location M36/184 (refer Figure 3) Proposed

management/controls Spills during servicing will be managed with the use of mobile spill kits in accordance with the requirements of AS1940. Any potentially contaminated material will be collected and transported to the bio-remediation facility for treatment.

3 Reverse osmosis plant (RO Plant)

Key characteristics RO Plant is still in planning phase and no details are currently available Location To be confirmed post planning phase 4 Dangerous goods (diesel, oils and greases, explosives) storage areas

Key characteristics Dangerous good storage will be designed and constructed by an appropriately qualified contractor to ensure compliance with regulatory requirements.

Location Explosives yard is located on M36/399 (Figure 3) Proposed

management/controls Appropriate licences issued pursuant to the Dangerous Goods Safety Act 2004 and associated regulations will be sought

5 Wastewater treatment Key characteristics BHP NiW proposes to use multiple Biomax units and septic facilities for the temporary ablutions at the ROM, service bays, and various locations

around the site Location Figure 3 has WRL ROM and key infrastructure areas labelled; Biomax units will be within M36/422, M36/183, M36/185, M36/184, M36/246 Design capacity Individual Biomax units will be sized to suit the workforce Expected throughput Current estimations up to 5400l/day and septics approximately 1500l/day Outputs Treated wastewater discharged to ground in previously cleared areas Proposed

management/controls Units will be fitted with high level alarm systems (e.g. alarm and/or flashing lights). Should the alarm system be triggered, the facility will be tagged “out of service” until the unit can be appropriately managed/maintained. In the event of spills the first priority will be to isolate the system and stop the release of wastewater. Contaminated soil will then be removed and disposed to an appropriately licensed landfill facility. An investigation and necessary works (e.g. repairs, upgraded capacity, etc.) will be undertaken to prevent further incidents. Septics and wastewater treatment units will be appropriately licenced under the Health (Miscellaneous Provisions) Act 1911, as required

6 Bioremediation facility

Key characteristics MKS will operate a bioremediation facility for the treatment of hydrocarbon contaminated soil Location WRL; Figure 3; M 36/422 or M36/183 Proposed

management/controls The site will be managed according to Assessment and management of contaminated sites Contaminated sites guidelines December 2014 (DWER 2014). Hydrocarbon contaminated material will be removed for disposal to bioremediation or an appropriately licensed disposal facility


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Figure 4 Indicative Bulk fuel storage facility layout.


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5. Siting and Location

This section includes information as required by Part 10 of the Licence Application Form and was assessed utilising information provided in Department of Environment Regulation (2016). MKS is located approximately 20 km to the south of Mt Keith Operations, located within the Shire of Leonora, 720 km north east of Perth and 430 km north of Kalgoorlie in Western Australia’s North-Eastern Goldfields (Figure 1). The nearest populated centres are Wiluna, 100 km to the north and Leinster, 70 km to the south. Figure 2 provides the tenure context for the MKS Project, while Figure 3 provides the indicative site layout.

5.1 Sensitive Land Uses

Sensitive land uses generally include residential development, hospitals, hotels, motels, hostels, caravan parks, schools, nursing homes, child care facilities, shopping centres, playgrounds and some public buildings (DER 2016). The nearest potentially sensitive land use is a mapped Environmentally Sensitive Area (DWER 2019c), Wanjarri Nature Reserve, a Class A nature reserve for the conservation of flora and faunas. It contains a low visitation campsite and the reserve boundary within ~1 km to the east of MKS, as shown in Attachment 2B.

5.2 Ecological receptors

The location of other potentially sensitive ecological receptors in relation to the premises is shown in Figure 5. MS 1087 has approved potential impacts to some ecological receptors and this application is consistent with the impacts assessed under MS 1087. The environmental assessment is more fully discussed in Section 6.

Ecological

Flora, Vegetation Flora and vegetation of MKS is discussed in full in Section 6.5. The flora and vegetation which will be cleared for MKS was assessed under MS 1087. There are no Threatened flora nor ecological communities. There are occurrences of Priority flora and one Priority Ecological Community (PEC) – the Violet Range PEC. Both will sustain minor impacts from the approved clearing however no significant impacts directly or indirectly will occur. Fauna Fauna and fauna habitats of MKS is discussed in full in Section 6.6. The MKS study area, which included the 878 ha of disturbance footprint within 1259 ha of development envelope was surveyed (Biota Environmental Science 2017) with targeted field surveys for the Night Parrot and Black-footed Rock-wallaby to address specific knowledge gaps relating to conservation significant species. No species of conservation significance have been recorded within the study area; however Priority 4 Brush-tailed Mulgara has potential to utilise the habitats of the local and regional area. The study area and surrounds has been subjected to a number of short-range endemic invertebrate fauna surveys, which have identified subterranean fauna that are not well known or well collected within the region but these were considered within the EPA assessment of the project as approved under MS 1087. Surface water

Surface water is discussed fully in Section 6.3. The area is characterised by ephemeral creek lines, with Jones Creek being the largest natural water course in the project area. No discharges to surface water will occur as part of the prescribed activity. Groundwater

Groundwater is discussed fully in Section 6.3. Groundwater is relatively scarce in the Project area, and lies approximately 15 to 35 m below MKS; no impacts to groundwater is expected from prescribed


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activities. No discharges to groundwater will occur as part of the prescribed activities. MKS is not within a Public Drinking Water Source Area. Conservation areas

The premises is located ~1 km to the east of Wanjarri Nature Reserve, which contains a campsite that may be considered a potential receptor. The campsite is at the former shearing shed within the Reserve and the area between the edge of MKS and the camp site retains 100% remnant vegetation acting as a natural buffer to mining activities.


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6. Existing Environment

6.1 Climate

Mt Keith-Leinster experiences a semi-arid climate with cool winters and hot summers. The Leinster Aero weather station (site number 012314) located approximately 77 km to the south of MKS is the closest Bureau of Meteorology data collection site. The seasonal range in mean daily minimum temperature is 5-23°C and in maximum temperature is 19-38°C. Wind strengths are generally moderate, averaging between 8-12 km/hr over most of the year. The prevailing wind direction is from the east to southeast over most of the year. Stronger westerly winds occur in spring, with September average afternoon strengths exceeding 40 km/hr on an average of 1 day per month. High temperatures and low humidity throughout much of the year produce an average pan evaporation of about 3,200 mm, and average evaporation exceeds average rainfall in all months of the year. The long-term average rainfall for the MKS area is about 235 mm. High intensity rains occur more commonly in summer, caused by localised thunderstorm activity or much larger weather systems associated with cyclones and tropical lows, however high intensity rain can also occur in association with winter weather patterns (Bureau of Meteorology, 2019).

6.2 Landforms and soil types

The MKS Project is located within the eastern portion of the IBRA (Thackway and Creswell, 1995) Murchison Biogeographic Region and the East Murchison (MUR1) sub region. The MUR1 subregion covers an area of 7,847,996 ha, covering northern parts of the ‘Southern Cross’ and ‘Eastern Goldfields’

Terranes of the Yilgarn Craton (Cowan, 2001). This sub region is characterised by: internal drainage; extensive areas of elevated red desert sand plains with minimal dune development; salt lake systems associated with occluded Palaeodrainage system; and broad plains of red-brown soils and granitic breakaway complexes as well as red sand plains (Cowan, 2001).

The Project lies in the north-eastern corner of the Archaean Yilgarn Block. The Eastern Goldfield Province is a typical Archaean granite-greenstone terrain characterised by large areas of granitic lithology and generally narrow, linear belts of greenstone (Griffin, 1990). Alluvial soils and sands overlay the granitic-greenstone units of the Yilgarn Craton. Underlying the soils in low areas is a red-brown siliceous hardpan (Curry et al., 1994). In the eastern half of the bioregion the soils are typically calcareous red earths, lithosols, duplex soil and clays and red sands (Australian Natural Resources Atlas, 2007).

The Project lies within the Keith – Kilkenny lineament geological anomaly that was interpreted and mapped from early reconnaissance data as a single fault line. This has been more recently described as not constituting a single simple continuous fault, but rather, is an artefact made up of separate, genetically unrelated segments. The Yakabindie Greenstone belt is one of three distinct greenstone components of the Mt Keith – Perseverance fault, which is described by Liu et al. (2002) as follows:

“The Yakabindie greenstone belt comprises a layered sequence of the Kathleen Valley Gabbro overlain by the massive tholeiitic Mount Goode Basalt. The Agnew greenstone belt comprises a lower sequenceof metamorphosed ultramafic, mafic, felsic volcanic, and sedimentary rocks, which is exposed in the Lawlers and Leinster Anticlines. The upper sequence, as exposed in the Mount White Syncline area, consists of metabasalt, metagabbro and metasedimentary rocks. Metamorphosed ultramafic, mafic, felsic volcanic and sedimentary rocks in the Perseverance area extend farther north to west of Mount Pasco. From Six Mile Well, ultramafic, sedimentary, and felsic volcanic/volcaniclastic rocks correlate with the greenstone sequences from Mount Keith to Wiluna. The Jones Creek Conglomerate represents a late clastic sequence and is restricted to a narrow, fault -bounded zone between the Yakabindie greenstone belt and granitoid in the west and the Mount Keith–Perseverance and Agnew greenstone belts to the east.”

6.3 Surface and groundwater

Regional hydrology (MWES Consulting 2017) was commissioned by BHP NiW to undertake an assessment of the baseline hydrological and hydrogeological regimes and identify potential impacts associated with the MKS Project. The MKS Project is located in the Lake Miranda catchment. The


16

north-east side of the main valley is formed by the Barr Smith Range, in which the existing NMK and proposed MKS pits are located. The upper slopes of the Range are sparsely vegetated, rocky and relatively steep. Drainage line gradients are typically 1-4% from the catchment divide at altitude 550-580m AHD down to about 515 m AHD. The short ephemeral creeks which drain the sides of the Range flood out onto the sedimentary deposits on the lower slopes of the valley. These minor lateral tributary creeks mostly terminate several kilometres short of the valley floor in vegetated distributary alluvial fans. Jones Creek drains the largest catchment of the Barr Smith Range and includes a well-defined creek-bed which crosses the lower valley alluvial slopes and discharges to a claypan near the valley axis.

Local hydrology – Jones Creek

MKS is located within the upper catchment of Jones Creek which is a lateral tributary system, incised into the Barr-Smith Range, at an altitude of approximately 520-560m AHD. The catchment is relatively efficient in terms of yielding stormwater run-off to the main stream. Surface gradients are relatively steep by regional standards, due to presence of a sequence of low strike ridges within the upper catchment. The rocky nature of the terrain with little alluvial or residual soil cover and sparse low vegetation further enhances the tendency for the catchment to shed rather than store water, which is evidenced by the dense array of well-defined and well incised minor tributaries and the relatively broad and coarse gravel bearing main-stream. This is also reflected in the flash-flooding type of creek flows generated by the catchment (MWES, 2017). Jones Creek is reported anecdotally to flow from moderate to high intensity rainfall of 25 mm or more.

Hydrogeology

Groundwater is relatively scarce in the MKS area, and lies approximately 15 to 35 m below. Aquifers are of limited lateral and vertical extent and surrounding rocks are of very low permeability. Water levels are relatively flat across the area, particularly on the ultramafic bodies with many values in the range 504-505 m AHD. There is a slight hydraulic gradient south down Jones Creek. Depth to the water table varies from a minimum of about 15 m outside the creek beds to a typical depth ranging from 25-35 m. At such depths, it is considered that groundwater does not sustain surface vegetation. Due to the depth to water table and limited recharge potential, natural groundwater level fluctuations are likely to be minor.

6.4 Contaminated site status

There is no contaminated site known from within a 50 km radius of MKS according to the Contaminated Site Database (DWER 2019b Accessed 31/12/2019).

6.5 Flora and vegetation

The MKS Project area has been subject to extensive field surveying since 1990, including desktop, reconnaissance and detailed surveys, and targeted surveys. The MKS Project survey covered a study area of approximately 5,422 ha (Western Botanical 2017). Thirty-eight vegetation associations and four vegetation association complexes were mapped and then grouped into six sub-units according to the dominating underlying geology/regolith which strongly influences the vegetation association species composition. Of note, the MKS Project lies centrally within the ~20,000 ha Violet Ranges (Perseverance Greenstone Belt) vegetation complexes (banded ironstone formation) Priority 1 PEC. This PEC extends for approximately 32 km in a north-south orientation and approximately 11 km in an east-west orientation at its widest point. The proposed development envelope represents 1,242 ha or 5.24% of the Violet Ranges PEC as currently mapped. No Threatened Flora as listed under the Biodiversity Conservation Act 2016 is known within or nearby the Project area. Fourteen Priority Flora have been recorded within the MKS Project study area with nine are directly impacted by proposed clearing. Clearing impacts and clearing of a small area of the PEC and Priority flora were considered in the EPA Part IV assessment and approved under MS1087.


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6.6 Fauna and fauna habitats

The MKS Project study area and surrounds has been subject to systematic fauna surveys since 1972. The Mt Keith Satellite Project study area, which included the 878 ha of disturbance footprint within 1259 ha of development envelope was surveyed (Biota Environmental Science 2017) and included a desktop fauna review with targeted field surveys for the Night Parrot and Black-footed Rock-wallaby to address specific knowledge gaps relating to conservation significant species. None of the mapped fauna habitats within the study area are restricted to the study area based on the broader distribution of vegetation communities and land system types. No species of conservation significance have been recorded within the study area; however Priority 4 Brush-tailed Mulgara has potential to utilise the habitats of the local and regional area.

Short-range Endemic & Subterranean Fauna The study area and surrounds has been subjected to a number of SRE invertebrate fauna surveys, which have identified nine broad habitats occurring within the study area, Targeted Survey Area and Wanjarri Nature Reserve. None of the species recorded from within the Development Envelope were restricted to the Development Envelope. Subterranean fauna surveys (Stantec 2016 2017) has revealed some species that are not well known or well collected within the region but these were considered within the EPA assessment of the project as approved under MS 1087.

6.7 Aboriginal and European heritage

BHP NiW is committed to undertaking heritage surveys in the area of its operations and ensures that both archaeological and ethnographic surveys are completed with the participation of Traditional Owners. The results of all heritage surveys and location of Aboriginal heritage sites are recorded in the BHP NiW’s database, which is used in the internal Environmental and Heritage Impact Assessment process, prior to land disturbance to ensure heritage sites are not accidentally impacted. Despite efforts to avoid or minimise impacts on Aboriginal heritage sites, the Project may have a residual impact on twenty-three known places within the area for which section 18 consent was obtained in 2003. Registered heritage sites have been identified in the vicinity of MKS, however no sites will be impacted by the prescribed activities. The location of heritage sites in relation to the premises boundary are shown in Figure 5Error! Reference source not found.. BHP NiW has in place with the Tjiwarl people an agreed Cultural Heritage Management Plan.

McFarlanes Find 02McFarlanes Find 02

Six Mile Well

YARALANGKANGU

KARTAN PUNGU

Yuralangkangu

Mitarrka

PINAWANGGU.

KUNIA.

MT FALCONERSITE COMPLEX.

Ngulu WuriWuri /Jones Creek

Mt FalconerSite Complex

Jones Creek1992-3 (FieldSite 3)

FieldSite Nine B

Jones Creek96/2Jones Creek96/2

McFarlanesFind 04

Jones Creek 3(Field Site 3)

MKS_181122_01

MKS_181122_02

Mt Pasco 10(Field Site7A and 7B)

Kiti

Ngulu Wuri Wuri/ Jones Creek(Site 13)

Partu Kutjata

Yunatarnu

Purungu(Site 14)

Wintjakunan

McFarlanesFind 01

Creekline Pt2

Creekline Pt2

CreekLine

M36/618

M36/216

M36/291

M36/399

M36/246

M36/677

L36/110

L36/206

L36/239

L36/240

M36/467

M36/183

M36/184

M36/185

M36/286

M36/288

M36/422

M36/631

M36/78

L36/94

M36/285

260,000

260,000

266,000

266,000

6,96

0,00

0

6,96

0,00

0

6,96

6,00

0

6,96

6,00

0

6,97

2,00

0

6,97

2,00

0

³MKS Project

T. Richards

Legend

Violet Range priority ecological community

Other recorded places on the register

Govt. Authority to Disturb Site

Govt. Authority to Disturb Site with Conditions

MKS Development Envelope

Wanjarri Nature Reserve

Scale:

Author:

1:45,000

Nickel West

Date: 20/01/2020

Doc. Path: F:\work\richartj\NDS1\Enviro\MKS_Works\MKS_Sensitive_Receptors_Fig5_RevB.mxd

Projection Details: MGA Zone 51

0 1 2 3 4

Kilometres Figure 5

Sensitive receptors and heritage sites in proximity

to MKS premises boundary


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7. Emissions and Discharges

The key emissions, discharges and proposed controls associated with MKS are outlined following.

7.1 Air Emissions

7.1.1 Odour

No significant odorous activities are proposed. Odour may be emitted from wastes accepted at the putrescible landfill, which will be located on the Waste Rock Landform (WRL) and will be managed so that it does not affect any sensitive receptors. The nearest sensitive receptor is the campsite at Wanjarri Nature Reserve (over 1 km away), which contains an old homestead infrequently used as a camp site with low visitation (DBCA Goldfields, Regional Leader Nature Conservation, pers. comm. 13/2/2020).

Waste management will be undertaken in accordance with the existing NMK site procedures and NiW-ENV-PLN-005 BHP NiW Waste Management Plan.

7.1.2 Dust

Dust generated during construction through clearing and stripping will be managed in accordance with BHP NiW Topsoil Stripping and Handling Procedure (NIW-HSEC-PRO-0035).

Dust during operation will result from vehicle movements within pits and unsealed roads, and during mobile crushing/screening operations. The mobile crushing/screening plant will be fitted with spray nozzles to minimize dust emissions at the head drum, discharge point of the main conveyor and at the feed point. Speed controls will be placed on vehicles to minimise dust generation. Dust will be managed with suppression water sprays as required; the mobile crushing/screening plant will typically be located at ground level, either within the WRL footprint or the ROM, where water carts actively control dust.

7.1.3 Noise

The noise generated from the mobile crushing/screening plant is within the context of an active mine site and over 1 km from any sensitive receivers (Wanjarri Nature Reserve). Mining operations use blasting charge sizes limited to ensure compliance with Environmental Protection (Noise) Regulations 1997 (WA).

7.2 Waste and Leachate

Wastes generated as part of the construction process, including packaging etc, will be captured and disposed of the proposed landfill facility located on the WRL.

Operational wastes include putrescible waste, general waste (excluding hydrocarbon contaminated material such as oil rags, chemical wastes or other hazardous materials) will be managed and disposed to the approved landfill location (refer Figure 3). Waste management will be undertaken in accordance with domestic and industrial waste management according to the existing NMK site procedures and NiW-ENV-PLN-005 BHP NiW Waste Management Plan.

The landfill cell within the WRL will be contained above the first lift (~10 m above ground level) to ensure no leachate reaches groundwater.

Used tyres (inert waste type 2) will be stored and then disposed within the WRL. Burial of tyres shall only take place within the WRL shown in the Indicative Site Layout Map in Figure 3 (M36/422 & M36/183, M36/185). Tyres shall only be landfilled:

i. in batches separated from each other by at least 100 mm of soil and each consisting of not more than 40 cubic metres of tyres reduced to pieces; or

ii. in batches separated from each other by at least 100 mm of soil and each consisting of not more than 100 whole tyres.


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Cell locations where tyres are to be buried will be surveyed and the latitude and longitude recorded.

No soil will be removed from the MKS Project. All topsoil will be stockpiled and reused for landscaping/rehabilitation where practical. Clearing and topsoil to be managed in accordance with BHP NiW Topsoil Stripping and Handling Procedure (NIW-HSEC-PRO-0035).

7.3 Wastewater (Sewerage)

BHP NiW proposes to use multiple Biomax units and septic facilities for the temporary ablutions at the ROM, service bays, and various locations around the site. Individual Biomax units will be sized to suit the workforce (estimated at up to 5400l/day and septics approximately 1500l/day). Septics and waste water treatment units will be appropriately licenced under the Health (Miscellaneous Provisions) Act 1911, as required.

Units will be fitted with high level alarm systems (e.g. alarm and/or flashing lights). Should the alarm system be triggered, the facility will be tagged “out of service” until the unit can be appropriately

managed/maintained.

In the event of spills from either facility, the first priority will be to isolate the system and stop the release of waste water. Contaminated soil will then be removed and disposed to an appropriately licensed landfill facility. An investigation and necessary works (e.g. repairs, upgraded capacity, etc.) will be undertaken to prevent further incidents.

7.4 Water management

During MKS construction and operations clean water diversion drains and bunds with a peak flood flow exclusion bund constructed at south east pit perimeter of Six Mile Well pit will be maintained. In addition, construction includes capture and treatment of contaminated stormwater with routine inspection and maintenance of stormwater drains and silt traps.

7.5 Groundwater

There will be no direct discharge to the environment or groundwater as part of MKS. Dewatering of pits via in-pit and surface pit sumps, and bores in accordance with current RIWI Act groundwater licences and supporting Ground Water Operating Strategies. Ongoing groundwater monitoring is required by water licences and the monitoring locations are shown in Attachment 2B.

7.6 Dangerous goods and hazardous substances

Use of dangerous goods and hazardous substances in accordance with existing NMK management procedures, including those for spill response and reporting. The proposed storage of diesel exceeds the manifest quantity (100,000 L) and accordingly a Dangerous Goods licence will be required (application in process).

Fuel will be stored within self-bunded storage tanks within a hardstand area, bunded by windrows of compacted material. Tanks will be refilled by road train. Fuel will be stored and handled in accordance with the approved code of practice AS1940, including, but not limited to tank design, placarding and maintenance of separation distances to on-site and off-site protected places.

Oils and greases associated with service bays will be stored in appropriately bunded areas.

Vehicle refuelling and service bays to be drained to appropriate oily water collection system and/or stormwater sump.

Any spills during refilling will be managed with automatic cut-off systems and the use of mobile spill kits in accordance with the requirements of AS1940.

Hydrocarbon contaminated material will be removed for disposal to the bioremediation area or an appropriately licenced disposal facility if required.

Groundwater will be monitored for hydrocarbons in the vicinity of hydrocarbon storage areas according to the GWOS (BHP 2018).


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7.7 Explosives

Storage within purpose-built, bunded facility, designed to meet requirements of the Dangerous Goods Safety Act 2004 (WA) and associated regulations including safe separation distances from mining and other activities.

The proposed location for this facility has been selected to meet the requirements of the Explosives Regulations and appropriate storage and transport licences will be sought.


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8. Risk Assessment

A risk assessment of the proposal covering all works, commissioning and operation was undertaken in accordance with DWER Guidance on Risk Assessments. Potential environmental risks associated with the prescribed activities are summarised in Table 4 and include:

crushing/screening of waste rock for construction purposes used tyre storage facility putrescible waste/landfill facility.

All phases (Construction, Commissioning and Operation) will have similar impacts, management and controls. MKS is remote with few environmentally sensitive areas/sensitive receptors. BHP NiW considers that with the existing and proposed management controls, the residual environmental risks associated with the prescribed activities are acceptable. Activities that require environmental management but do not require licencing include:

bulk fuels storage facility bioremediation facility vehicle and plant repair and servicing reverse osmosis plant (RO Plant) wastewater treatment and storage.

8.1 Monitoring

Groundwater monitoring is undertaken for MKS under the GWOS (BHP 2018) as part of current groundwater licensing conditions. Depth to groundwater is ~15 m near Jones Creek and 25 m elsewhere and no interaction with groundwater is anticipated from any of the prescribed activities.

The putrescible waste cell will be constructed after the first lift (~10m) and be encapsulated with inert material to maintain isolation from groundwater. The locations of the current suite of bores for groundwater monitoring (as conditioned under the GWOS (BHP 2018)) and locations are provided for information in Attachment 2B.

Dust is not currently monitored due to lack of sensitive receptors and the on-going management of dust through water carts.

Monitoring of flora and vegetation at Wanjarri Nature Reserve is undertaken under agreement with DBCA (Attachment 2B) and according to the Flora and Vegetation Management Plan approved under MS1087.


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Table 4: Risk Assessment

Risk identification Risk Analysis (Prior to management / control measure) – refer to Tables 1 and 2

Risk Management Residual Risk Analysis (After management / control measure) – refer to Tables 1 and 2

Detailed Risk assessment required

Risk

Project Phase

Possible Result Environmental receptors and exposure pathways

Consequence Likelihood Risk Matrix Rating

Management / Control Measures Consequence Likelihood Risk Matrix Rating

Disturbance to native vegetation

Clearing Loss of native vegetation

Vegetation (clearing) Minor Rare Low BHP NiW internal Environment and Heritage Impact assessment process is implemented on site to ensure all activities are undertaken in accordance with regulatory approvals.

No new ground disturbance required

Minor Rare Low No - No new ground disturbance is required.

Hydrocarbon discharge

Construction & operation

Hydrocarbon contamination

Soils via direct contact Surface Water (runoff) Groundwater via infiltration

Minor Possible Medium Immediate removal of spilled material; contaminated material disposed of to bioremediation area or an approved location

Slight Unlikely Low No – Typical construction/operation activity/impacts, proposed controls considered sufficient to address potential impact

Disturbance to Aboriginal Heritage

Clearing & construction

Damage or loss to Aboriginal heritage sites

Landforms (damage by mining equipment/ vehicles)

Moderate Rare Medium BHP NiW internal Environmental and Heritage Impact Assessment process; (which requires checking of heritage survey GIS data prior to ground disturbance activities)

No new ground disturbance required

Moderate Rare Medium No - No new ground disturbance is required.

Odour (from wastes accepted at putrescible landfills)

Operation Impact on neighbouring properties (Wanjarri camp site)

Air dispersion Slight Possible Low Located on WRL within mining tenure Closest sensitive receptor (camping area with

low visitation) is ~1 km

Slight Rare Low No – Typical operational activity /impacts, proposed controls considered sufficient to address potential impact

Dust emissions Dust from operational crushing activities; vehicle use of unsealed roads

Operation Airborne dust containing heavy metals

Soil and vegetation via deposition Air dispersion; human health via inhalation

Moderate Possible Medium Dust suppression water sprays as required Crushing/screening plant will be fitted with

spray nozzles to minimise dust Dust control equipment will be maintained in

efficient operating condition, routine maintenance and housekeeping will be undertaken to avoid accumulation of waste materials that could lead to dust generation and employees and contractors will continue to be inducted regarding importance of minimizing dust levels.

Water carts employed for unsealed roads Closest sensitive receptor (camping area with


Moderate Unlikely Medium No – Typical construction & operational activities /impacts, proposed controls considered sufficient to address potential impact

Noise emissions (crushing)

Operation Impact on neighbouring properties (Wanjarri camp site)

Air dispersion Slight Possible Low Works located within mining tenure Closest sensitive receptor (camping area with


Slight Rare Low No – Typical construction activity /impacts, proposed controls considered sufficient to address potential impact

Waste & leachate Operation Impact to groundwater quality

Groundwater via infiltration

Moderate Possible Medium Waste management will be undertaken in accordance with domestic and industrial waste management according to the existing NMK site procedures and NiW-ENV-PLN-005 BHP NiW Waste Management Plan

The landfill cell within the WRL will be contained above the first lift (~10 m above ground level) to ensure no leachate reaches groundwater

Used tyres (insert waste type 2) will be stored and then disposed within the WRL. Burial of tyres shall only take place within the WRL shown in the Indicative Site Layout Map in Figure 3 (M36/422 & M36/183, M36/185). Tyres shall only be landfilled in batches separated from each other by at least 100 mm

Possible Minor Medium No – Typical construction/operation activity/impacts, proposed controls considered sufficient to address potential impact


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of soil: each consisting of not more than 40 cubic metres of tyres reduced to pieces; or separated from each other by at least 100 mm of soil and each consisting of not more than 100 whole tyres.

Cell locations where tyres are to be buried will be surveyed and the latitude and longitude recorded

1

1 DWER, Guidance Statement: Risk Assessments Part V, Division 3, Environmental Protection Act 1986, Feb 2017


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9. Fee calculation

The application fee shown in Table 5Error! Reference source not found. has been calculated based on the DWER Industry Licencing System calculator (Accessed: https://ils.dwer.wa.gov.au/#FeesExampleW)

Table 5: Fee calculation

https://ils.dwer.wa.gov.au/#FeesExampleW


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10. References

BHP Billiton Nickel West (BHP NiW), 2018, Groundwater Licence 63902 (Yakabindie) Revised Operating Strategy Mt Keith Satellite Project M36/183, M36/246, M36/185, M36/184.

BHP NiW, 2018, Hydrological Processes Environmental Management Plan Mt Keith Satellite Project Revision A.

BHP NiW, 2018, Mining Proposal with a Mine Closure Plan - Mt Keith Satellite Proposal Mining Proposal on L 36/110, L 36/206, M 36/183, M 36/184, M 36/185, M 36/246, M 36/286, M 36/288, M 36/294, M 36/399, M 36/422, M 36/658, M 36/677, M 53/166, M 53/217 and M 53/218.

BHP NiW, 2018, Mt Keith Satellite Project Environmental Review Assessment Number 2122.

BHP NiW, 2019, Flora and Vegetation Environmental Management Plan Mt Keith Satellite Project Version 0.1. Perth.

Biota Environmental Sciences, 2017, Mt Keith Satellite Proposal Vertebrate Fauna Review, Unpublished report prepared for BHP Billiton, Perth.

Bureau of Meteorology, 2017, Climate Data Online Accessed: http://www.bom.gov.au/climate/data/stations/

Cowan, MA, 2001, Murchison 1 (MUR1 – East Murchison subregion). In NL McKenzie & JE May (eds.), A Biodiversity Audit of Western Australia’s 53 Biogeographical Subregions in 2002 (pp.466-479). Western Australia: Department of Conservation and Land Management.

Curry, PJ, Payne, AL, Leighton, KA, Hennig, P and Blood, DA, 1994, Technical Bulletin No. 84 An inventory and condition survey of the Murchison River catchment and surrounds, Western Australia. Department of Agriculture, Perth.

Department of Mines, Industry Regulation and Safety, 2019, Approval For Mining Proposal With A Mine Closure Plan - Mt Keith Satellite Proposal Mining Proposal On L36/110, L36/206, M36/183, M36/184, M36/185, M36/246, M36/286, M36/288, M36/294, M36/399, M36/422, M36/658, M36/677, M53/166, M53/217, M53/218.

Department of Environment Regulation, 2016, Environmental Siting Part V, Division 3, Environmental Protection Act 1986. State of Western Australia. Accessed: https://www.der.wa.gov.au/images/documents/our-work/licences-and-works-approvals/GS-Environmental-Siting.pdf

Department of Fire and Emergency Services, 2019, Guidance Note: GNO2: Bulk Storage of Rubber Tyres including Shredded and Crumbed Tyres. Department of Fire and Emergency Services, Perth.

Department of Health, 2011, Guidelines for the Non-potable Uses of Recycled Water in Western Australia. Department of Health, Perth.

Department of Health, 2016, Recycled Water Sampling Technique. Department of Health, Perth.

Department of Mines, Industry Regulation and Safety, 2019, Conditions on Mining Leases 36/183, 36/184, 36/185, 36/246, 26/286, 36/288, 36/294, 36/299, 36/422, 36/658, 36/677, 53/166, 53/217, 53/218, & Miscellaneous Licences 36/110, 36/206.

Department of Water (DoW), 2008, Water Quality Protection Note 22: Irrigation with nutrient-rich wastewater. Department of Water, Perth. Accessed: https://www.water.wa.gov.au/__data/assets/pdf_file/0013/4045/82324.pdf

DoW, 2009, Water Quality Protection Note 111 Landfills for Disposal of Putrescible Materials Department of Water, Perth. Accessed: https://www.water.wa.gov.au/__data/assets/pdf_file/0015/4056/84596.pdf

Department of Water and Environmental Regulation (DWER), 2014, Assessment and management of contaminated sites. Contaminated sites guidelines December 2014. Government of Western Australia. Accessed: https://www.der.wa.gov.au/images/documents/your-environment/contaminated-sites/guidelines/Assessment_and_management_of_contaminated_sites.pdf

DWER, 2019a, GWL63902(6) Licence to Take Water, granted by the Minister under section 5C of the Rights in Water and Irrigation Act 1914.

DWER, 2019b, Contaminated Sites Database Accessed: https://dow.maps.arcgis.com/apps/webappviewer/index.html?id=c2ecb74291ae4da2ac32c441819c6d47

http://www.bom.gov.au/climate/data/stations/

https://www.der.wa.gov.au/images/documents/our-work/licences-and-works-approvals/GS-Environmental-Siting.pdf

https://www.der.wa.gov.au/images/documents/our-work/licences-and-works-approvals/GS-Environmental-Siting.pdf

https://www.water.wa.gov.au/__data/assets/pdf_file/0013/4045/82324.pdf

https://www.water.wa.gov.au/__data/assets/pdf_file/0015/4056/84596.pdf

https://www.der.wa.gov.au/images/documents/your-environment/contaminated-sites/guidelines/Assessment_and_management_of_contaminated_sites.pdf

https://www.der.wa.gov.au/images/documents/your-environment/contaminated-sites/guidelines/Assessment_and_management_of_contaminated_sites.pdf

https://dow.maps.arcgis.com/apps/webappviewer/index.html?id=c2ecb74291ae4da2ac32c441819c6d47


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DWER, 2019c, Environmentally Sensitive Areas map. Accessed: https://cps.dwer.wa.gov.au/main.

DWER, 2019d, Landfill Waste Classification and Waste Definitions 1996 (as amended 2019). Accessed: https://www.der.wa.gov.au/images/media/Media_statements/Waste_definitions.pdf

DWER, 2017, Guidance Statement: Risk Assessments Part V, Division 3, Environmental Protection Act 1986, https://www.der.wa.gov.au/images/documents/our-work/licences-and-works-approvals/Fee_changes_2018/2018-05-25_IR-FS-12_Industry_Regulation_Fees.pdf Environmental Protection Authority, 2018, Report and recommendations of the Environmental Protection Authority Mt Keith Satellite Project, Perth.

Minster for Environment, 2018, Statement that a proposal may be implemented (Environmental Protection Act 1986) Statement No. 1087. Perth.

MWES Consulting, 2017, Mt Keith Satellite Operations Water Aspects and Impacts Draft Report Prepared for BHP Billiton Nickel West, Perth.

MWH, 2016a Mt Keith Satellite Operations: Short-range Endemic Invertebrate Fauna Impact Assessment Prepared for BHP Nickel West, Perth.

MWH, 2016b, Mt Keith Satellite Operations Subterranean Fauna Assessment, Prepared for BHP Billiton Nickel West, Perth.

Stantec, 2017, Mount Keith Satellite Operations Stygofauna Assessment, unpublished report prepared for BHP Nickel West, Perth.

Thackway, R and Creswell, I D, 1995, An Interim Biogeographic Regionalisation for Australia: A framework for setting priorities in the National Reserves System Cooperative Program Version 4.0. Canberra: Australian Nature Conservation Agency

Western Botanical, 2017, Flora and Vegetation Assessment of the Mt Keith Satellite Proposal Study Area, October 2018. Report for BHP Billiton, Nickel West Pty Ltd. Report Ref: WB867

Western Botanical, 2019, Flora and Vegetation Assessment for the Revised Development Envelope s45C application, Mt Keith Satellite. Unpublished report to BHP NiW, Perth.

https://cps.dwer.wa.gov.au/main.

https://www.der.wa.gov.au/images/media/Media_statements/Waste_definitions.pdf

https://www.der.wa.gov.au/images/documents/our-work/licences-and-works-approvals/Fee_changes_2018/2018-05-25_IR-FS-12_Industry_Regulation_Fees.pdf

https://www.der.wa.gov.au/images/documents/our-work/licences-and-works-approvals/Fee_changes_2018/2018-05-25_IR-FS-12_Industry_Regulation_Fees.pdf

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ATTACHMENT 1A: Proof of Occupier Status

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ATTACHMENT 1B: ASIC Company Extract

30

31

ATTACHMENT 2A MKS Premises Map

32

33

ATTACHMENT 2B Monitoring Locations

Groundwater monitoring locations as per current GWOS (BHP 2018)

Flora/vegetation monitoring as per Flora and Vegetation Management Plan (BHP 2019)

34

35

ATTACHMENT 2C Proposed Prescribed Premises Spatial Files

36

ATTACHMENT 3A Proposed Activities

Refer to Section 4 of Works Approval Supporting Information document

37

ATTACHMENT 3B Clearing Area – Not Applicable

38

ATTACHMENT 3C Not Applicable

39

ATTACHMENT 4 Biosurveys – Not Applicable

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ATTACHMENT 5A Other Approvals – EPBC2017/8001

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Insert EPBC approval

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ATTACHMENT 5B Other Approvals – MS1087

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Insert MS1087

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ATTACHMENT 5C Other Approvals – MP (Registration ID 76846)

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Insert MP

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ATTACHMENT 6A Emissions & Discharges - NA

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ATTACHMENT 6B Waste Acceptance – NA

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ATTACHMENT 7 MKS Siting & Location

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ATTACHMENT 8 Supporting Documents

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ATTACHMENT 9 Fee Calculation

Refer Section 9 Supporting Information

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ATTACHMENT 10 Sensitive Information - NA

Date post:	02-Mar-2021
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