Worsley Mine Expansion – Revised Proposal

Project
Proponent
South32 Worsley Alumina Pty Ltd
Proposal description

South32 Worsley Alumina Pty Ltd currently operates the Boddington Bauxite Mine (located approximately 5km south-west of Boddington), Worsley Refinery (located approximately 15 km north-west of Collie) and port operations at the Bunbury Port.

The new proposal is for the:

·       expansion of the existing mining area and incorporation of new mining areas;

·       development of a bauxite transport corridor;

·       development of a contingency mining area and maintenance work at the Refinery; and

·       development of associated mine/support infrastructure.

The proposal, as amended under s. 43A of the Environmental Protection Act 1986, involves clearing of up to 3,855 ha of native vegetation for the mine and mining related activities. The proposal also requires two river crossings over the Hotham River.

Assessment Number
2216
Region
Peel
Referred under EP Act
s38
Industry sector
Bauxite
Last updated
1. Referral
Comment on this referral
Worsley Mine Expansion – Revised Proposal
Referral documentation
Referral Form.pdf (PDF, 320.5 KB)
Supporting Document (PDF, 21.15 MB)
Appendix A - Flora and Vegetation Report.pdf (PDF, 28.15 MB)
Appendix B - Desktop Fauna Assessment.pdf (PDF, 43.95 MB)
Appendix C - WMDE_SRE_Assessment.PDF (PDF, 6.91 MB)
Appendix D - CBME_SRE_Assessment.PDF (PDF, 2.1 MB)
Appendix E - WMDE Subterranean Fauna Review.PDF (PDF, 276.05 KB)
Appendix F - CBME Subterranean Fauna Review.PDF (PDF, 241.88 KB)
Appendix G - Aboriginal Heritage Survey Rpt.pdf (PDF, 4.72 MB)
Appendix H - Biodiversity and Forest Management Plan.pdf (PDF, 1.99 MB)
Appendix I - MNES Impact Summary Table.pdf (PDF, 527.45 KB)
2. Decision on whether to assess this proposal
Chair's Determination
Assess - Public Environmental Review
Extract of determination
Worsley Mine Expansion – Revised Proposal (PDF, 520.7 KB)
Preliminary Environmental Factors
Social Surroundings
Flora and Vegetation
Terrestrial Environmental Quality
Terrestrial Fauna
Inland Waters
Date published
3. Assessment
Scoping
Environmental scoping document
CMS17540-ESD Approved-070220.pdf (PDF, 1.57 MB)
Approved
Environmental Review
Make a submission
Worsley Mine Expansion – Revised Proposal - Public Environmental Review
Environmental Review documentation
South32 Worsley Alumina ERD - Rev 3 - 13 June 2022.pdf (PDF, 36.61 MB)
Appendix A – Environmental Scoping Document (PDF, 1.57 MB)
Appendix B – Definition of terms (PDF, 101.9 KB)
Appendix C – Stakeholder Consultation Summary (PDF, 288.14 KB)
Appendix D – Concordance table – within ERD (PDF, 116.8 KB)
E01 - Biodiversity and Forest Management Plan.pdf (PDF, 5.23 MB)
E02 - Threatened Species Management Plan.pdf (PDF, 3.41 MB)
E03 - Threatened Fauna Pre-Clearance Survey and Management.pdf (PDF, 620.86 KB)
E04 - Protected Areas Plan.pdf (PDF, 2.11 MB)
E05 - BBM Closure Plan.pdf (PDF, 38.98 MB)
E06 - Refinery Closure Plan.pdf (PDF, 7.5 MB)
E07 - Water Management Plan.pdf (PDF, 4.57 MB)
E08 - Dust Management Plan - Bauxite Mining and Transport.pdf (PDF, 1.27 MB)
E09 - Air Quality and Dust Management Plan - RLA.pdf (PDF, 4.89 MB)
E10 - Greenhouse Gas Management Plan.pdf (PDF, 2.15 MB)
E11 - Exploration Environmental Management Plan.pdf (PDF, 2.5 MB)
Appendix F1 - Assessment of Flora and Vegetation on Worsley Mine Expansion PAA.pdf (PDF, 42.17 MB)
Appendix F2 - WMDE, BTC CBME Phytophthora Dieback Occurrence Assessment.pdf (PDF, 4.02 MB)
Appendix F3 - Addendum - Assessment of Threatened and Priority Flora.pdf (PDF, 6.82 MB)
Appendix G1 - Worsley Alumina Mine Expansion (PAA) Fauna Assessment.pdf (PDF, 45.16 MB)
Appendix G2 - Four-phase Short-range Endemic Invertebrate Fauna Survey for the Worsley Mine Expansion Project.pdf (PDF, 16.82 MB)
Appendix G3 - Black Cockatoo Breeding Habitat Assessment for the Worsley Mine Expansion.pdf (PDF, 6.33 MB)
Appendix G4 - Potential habitat tree survey and foraging analysis for the Worsley Mine Expansion Proposal.pdf (PDF, 18.71 MB)
Appendix G5 - Four-phase Short-range Endemic Invertebrate Fauna Survey for the Worsley Mine Expansion Project_ADDENDUM.pdf (PDF, 2.01 MB)
Appendix H1 - Worsley Mine Expansion Soil Characterisation Study.pdf (PDF, 13.06 MB)
Appendix I1 - Groundwater and Surface Water Studies (GHD, 2020a).pdf (PDF, 59.15 MB)
Appendix I2 - Additional Groundwater Abstraction Memo (GHD 2020b).pdf (PDF, 897.04 KB)
Appendix I3 - Desktop Assessment Carter's Freshwater Mussel (GHD, 2019b).pdf (PDF, 777.33 KB)
Appendix I4 - Mercury Bioaccumulation and Habitat Values Memo (Stantec, 2021).pdf (PDF, 1.9 MB)
Appendix J1 - Worsley Alumina Mine Expansion Air Quality Assessment (ETA 2021).pdf (PDF, 10.03 MB)
Appendix K1 - Landscape and Visual Impact Assessment (ERM 2020).pdf (PDF, 12.57 MB)
Appendix K2 - Aboriginal Heritage Due Diligence Assessment (Brad Goode & Ass 2020).pdf (PDF, 17.57 MB)
Appendix K3 - Archaeological Survey of the Priority 1 Bridges & Transport Corridor (Brad Goode & Ass 2021).pdf (PDF, 6.5 MB)
Appendix K4 - Noise Impact Assessment (Talis 2021).pdf (PDF, 4.02 MB)
Appendix K5 - CBME Noise Screening Assessment (Talis 2020a).pdf (PDF, 2.27 MB)
Appendix K6 - Draft Cultural Heritage Management Plan.pdf (PDF, 6.71 MB)
Appendix K7 - Landscape and Visual Impact Assessment - BRDA extension (LOM 2021).pdf (PDF, 2.15 MB)
Appendix K8 - Addendum to a Report of an Aboriginal Heritage Survey BBM (Brad Goode & Ass 2021).pdf (PDF, 3.68 MB)
Appendix L01 - South32 Worsley Alumina Biodiversity Offsets Plan.pdf (PDF, 24.2 MB)
Appendix L02 & L3 - Offset value calculators.zip (ZIP, 12.85 MB)
Appendix L04 - Preliminary SRI Calculations for Conservation Significant Species.pdf (PDF, 572.98 KB)
Appendix L05 - South32 Worsley Alumina OIP_Offset 1.pdf (PDF, 1.52 MB)
Appendix L06 - South32 Worsley Alumina OIP_Offset 2.pdf (PDF, 8.54 MB)
Appendix L07 - South32 Worsley Alumina OIP_Offset 4.pdf (PDF, 271.31 KB)
Appendix L08 - South32 Worsley Alumina OIP_Offset 5.pdf (PDF, 2.29 MB)
Appendix L09 - Application of underpasses to expand nature reserves - responses of a critically endangered marsupial, the Woylie.pdf (PDF, 3.2 MB)
Appendix L10 - Can post-mining revegetation create habitat for a threatened mammal.pdf (PDF, 454.48 KB)
Appendix L11 - Diet of the critically endangered woylie in south-Western Australia.pdf (PDF, 4.73 MB)
Appendix L12 - Does forest restoration in fragmented landscapes provide habitat for a wide-ranging carnivore.pdf (PDF, 496.21 KB)
Appendix L13 - Ecology of Black Cockatoos at a Mine-site in the Eastern Jarrah -Marri Forest, WA.pdf (PDF, 435.03 KB)
Appendix L14 - Feeding activity of threatened black cockatoos in mine-site rehabilitation in the jarrah forest of south-western Australia.pdf (PDF, 454.19 KB)
Appendix L15 - Habitat requirements of the endangered red-tailed phascogale, Phascogale calura.pdf (PDF, 343.54 KB)
Appendix L16 - Habitat use of the Quokka, Setonix brachyurus (Macropodidae-Marsupialia), in the Northern Jarrah Forest of Australia.pdf (PDF, 210.34 KB)
Appendix L17 - Mine-site revegetation monitoring detects feeding by threatened black-cockatoos within 8 years.pdf (PDF, 93.86 KB)
Appendix L18 - National Recovery Plan for the Woylie - Bettongia penicillata ogilbyi.pdf (PDF, 1.42 MB)
Appendix L19 - Seasonal home range and habitat use of a critically endangered marsupial (Bettongia penicillata ogilbyi) inside and outside a predator-proof sanctuary.pdf (PDF, 543.44 KB)
Appendix L20 - Successional changes in feeding activity by threatened cockatoos in revegetated mine sites.pdf (PDF, 953.04 KB)
Appendix L21 - The life history of Pseudocheirus occidentalis (Pseudocheiridae) in the jarrah forest of south-western Australia.pdf (PDF, 252.41 KB)
Appendix L22 - Vertebrate Fauna Recolonization of Restored Bauxite Mines - Key Findings from Almost 20 Years of Monitoring and Research.pdf (PDF, 522.06 KB)
Appendix L23 - Re-establishing the mid-storey tree Persoonia longifolia in Restored forest following bauxite mining southern Western Australia.pdf (PDF, 2.09 MB)
Appendix L24 - Ecology, seed dormacy and germination biology of Persoonia longifolia for use in land restoration and horticulture.pdf (PDF, 5.95 MB)
Appendix L25 - Germination of Persoonia species.pdf (PDF, 2.22 MB)
Date Published (Environmental Review documentation)
Proponent response to submissions
South32 Worsley Alumina Pty Ltd Response to Submissions_V3 March 2024.pdf (PDF, 32.18 MB)
Appendix A1 - Public submission issues that align with WA Forest Alliance submission points.pdf (PDF, 257.43 KB)
Appendix A2 - Public submissions that align with WA Forest Alliance submission based on Environmental Factors.pdf (PDF, 402.46 KB)
Appendix A3 - Public submissions that were unable to be responded to.pdf (PDF, 100.01 KB)
Appendix A4 - Public submissions in support of the Revised Proposal.pdf (PDF, 137.97 KB)
Appendix A5 - Public submissions outlining general opposition to project.pdf (PDF, 161.93 KB)
Appendix A6 - 2019-8437- DCCEEW Review of Response to Submission Feb 2024 - Attachment A and B.pdf (PDF, 4.33 MB)
Appendix B9 - Exploration Environmental Management Plan v1.4.pdf (PDF, 2.91 MB)
Appendix B8 - Greenhouse Gas Management Plan v 1.3.pdf (PDF, 883.27 KB)
Appendix B7 - Air Quality and Dust Management Plan - RLA v1.2.pdf (PDF, 5.62 MB)
Appendix B6 - Dust Management Plan - Bauxite Mining and Transport v5.2 (1).pdf (PDF, 6.52 MB)
Appendix B5 - Water Management Plan.pdf (PDF, 9.99 MB)
Appendix B4 - Protected Areas Plan.pdf (PDF, 2.47 MB)
Appendix B3 - Threatened Species Pre-Clearance Survey and Management.pdf (PDF, 620.95 KB)
Appendix B2 - Threatened Species Management Plan.pdf (PDF, 5.84 MB)
Appendix B11 - Biodiversity Indicators - Peer Review.pdf (PDF, 755.59 KB)
Appendix B10 - Construction Environmental Management Plan.pdf (PDF, 8.73 MB)
Appendix B1 - Biodiversity and Forest Management Plan v6.2.pdf (PDF, 5.26 MB)
Appendix C6 - South 32 Lot 102 flora report.pdf (PDF, 15.73 MB)
Appendix C5 - Mattiske 2023, Review of Rehabilitation against Completion Criteria Dec 2023.pdf (PDF, 393.5 KB)
Appendix C4 - Stantec Completion Criteria Review 2021.pdf (PDF, 2.47 MB)
Appendix C3 - Mattiske. 2021c Addendum - Assessment of Threatened and Priority Flora_ed_update_Oct 2023 .pdf (PDF, 7.29 MB)
Appendix C2 - Mattiske 2021 Memorandum_Summary of Findings for Nullaga Bridge_Hotham River.pdf (PDF, 1.13 MB)
Appendix C1 - Mattiske. 2022, “Additional Information on Threatened Flora Species”..pdf (PDF, 2.07 MB)
Appendix D1 - Carters Freshwater Mussel Survey at Williams and Hotham Rivers .pdf (PDF, 6.59 MB)
Appendix D2 - South32 Worsley Alumina Boddington Mine and Offset Properties -Numbat Habitat Assessment .pdf (PDF, 10.9 MB)
Appendix D3 - Four Phase SRE Survey September 2023 - Phoenix.pdf (PDF, 22.06 MB)
Appendix D4 - Klunzinger et al. 2022 Westralunio (new threatened species) .pdf (PDF, 3.43 MB)
Appendix D5- Manuscript - Liddicoat et al_eDNA Restoration trajectories .pdf (PDF, 1.33 MB)
Appendix D6 - Northern jarrah forest water-balance study to inform the review of silviculture guidelines.pdf (PDF, 7.37 MB)
Appendix D7 - Soil DNA chronosequence analysis bacterial community re-assembly post-mining Peddel et al.pdf (PDF, 688.54 KB)
Appendix D8 - Molecular Ecology - 2022-Heyde-Evaluating restoration trajectories using DNA metabarcoding.pdf (PDF, 3.09 MB)
Appendix D9 - SPRAT database map showing the extent of the Chuditch habitat range in south western WA.pdf (PDF, 86.6 KB)
Appendix D10 - SPRAT database map showing the extent of the Red-Tailed Phascogale habitat range.pdf (PDF, 134.84 KB)
Appendix D11 - SPRAT database map showing the extent of the Woylie habitat range in south western WA.pdf (PDF, 125.01 KB)
Appendix D12 - SPRAT database map showing the extent of the Western Ringtail Possum habitat range.pdf (PDF, 86.34 KB)
Appendix D13 - SPRAT database map showing the extent of the Quokka habitat range in south western WA.pdf (PDF, 110.32 KB)
Appendix D14 - SPRAT database map showing the extent of the Carter's Freshwater Mussel habitat range.pdf (PDF, 117.09 KB)
Appendix D15 - Bain et al. 2015.pdf (PDF, 611.97 KB)
Appendix D16 - Woinarski et al 2022 Lights at end of tunnel - recovery for threatened animals.pdf (PDF, 595.79 KB)
Appendix D17 - Black Cockatoo Breeding Habitat Assessment - Phoenix - Final March 2023.pdf (PDF, 9.14 MB)
Appendix D18 - Email exchange WA Museum Sub-Sampling Request.pdf (PDF, 233.88 KB)
Appendix D19 - Phoenix -SRE_Four_Season_Survey_Report_Addendum (2).pdf (PDF, 2.01 MB)
Appendix D20 - Potential Habitat Trees in PAA.pdf (PDF, 168.02 KB)
Appendix D21 - Biologic South32 Lot 100_102 Offset Baseline Vertebrate Fauna Survey Report_Part1.pdf (PDF, 32.23 MB)
Appendix D21 - Biologic South32 Lot 100_102 Offset Baseline Vertebrate Fauna Survey Report_Part2.pdf (PDF, 49.67 MB)
Appendix D21 - Biologic South32 Lot 100_102 Offset Baseline Vertebrate Fauna Survey Report_Part3.pdf (PDF, 26.4 MB)
Appendix D21 - Biologic South32 Lot 100_102 Offset Baseline Vertebrate Fauna Survey Report_Part4.pdf (PDF, 26 MB)
Appendix D21 - Biologic South32 Lot 100_102 Offset Baseline Vertebrate Fauna Survey Report_Part5.pdf (PDF, 24.96 MB)
Appendix D21 - Biologic South32 Lot 100_102 Offset Baseline Vertebrate Fauna Survey Report_Part6.pdf (PDF, 32.25 MB)
Appendix D22 - Biologic South32 Gibbs Offset Targeted Vertebrate Fauna Survey Report_Part1.pdf (PDF, 3.14 MB)
Appendix D22 - Biologic South32 Gibbs Offset Targeted Vertebrate Fauna Survey Report_Part2.pdf (PDF, 51.27 MB)
Appendix D22 - Biologic South32 Gibbs Offset Targeted Vertebrate Fauna Survey Report_Part3.pdf (PDF, 1.83 MB)
Appendix D22 - Biologic South32 Gibbs Offset Targeted Vertebrate Fauna Survey Report_Part4.pdf (PDF, 51.23 MB)
Appendix D22 - Biologic South32 Gibbs Offset Targeted Vertebrate Fauna Survey Report_Part5.pdf (PDF, 3.6 MB)
Appendix D22 - Biologic South32 Gibbs Offset Targeted Vertebrate Fauna Survey Report_Part6.pdf (PDF, 51.25 MB)
Appendix D22 - Biologic South32 Gibbs Offset Targeted Vertebrate Fauna Survey Report_Part7.pdf (PDF, 5.23 MB)
Appendix D23 - Bamford Consulting Ecologists South32 Collie Offsets(Black Cockatoo)Assessment.pdf (PDF, 15.09 MB)
Appendix D24 - Biostat (2021) Offset Fauna Habitat Assessment 2021.pdf (PDF, 16.58 MB)
Appendix E1 - Boddington Bauxite Mine Dust Sampling and Analysis Results (2).pdf (PDF, 10.35 MB)
Appendix F1 - Groundwater Supporting Studies, Numerical Groundwater Modelling.pdf (PDF, 12.27 MB)
Appendix F2 - Salinity Risk Assessment for the Boddington Bauxite Mine Using FDA.pdf (PDF, 8.42 MB)
Appendix F3 - Review of the Bee Farm and Tunnel Road Catchment Study, 2004.pdf (PDF, 5.14 MB)
Appendix F4 - BBM Triennial Review Executive Summary (2017-2020).pdf (PDF, 512.27 KB)
Appendix F5 - Nullaga Haul Road Dilyan's Crossing Hydrology & Hydraulics Report 2023.pdf (PDF, 11.08 MB)
Appendix F6 - Salinity Risk Assessment for Hotham North using Flux Density Analysis (Green et al 2023).pdf (PDF, 6.94 MB)
Appendix F7 - Groundwater and Surface Water Studies - Revision 2.pdf (PDF, 1.3 MB)
Appendix F8 - Independent GW Model Review November 2023.pdf (PDF, 299.29 KB)
Appendix F9 - Technical Memo GHD Model Groundwater Uncertainty Analysis_Nov 23.pdf (PDF, 19.27 MB)
Appendix F10 - CBME Groundwater Model.pdf (PDF, 5.09 MB)
Appendix F11 - Quindanninq Indirect Impacts Review - WEC December 2023.pdf (PDF, 3.62 MB)
Appendix G6 - South32 Worsley Alumina OIP_Offset 3 (Ver 1).pdf (PDF, 393.72 KB)
Appendix G3 - South32 Worsley Alumina OIP_Offset 2 (Ver 4).pdf (PDF, 8.87 MB)
Appendix G4 - South32 Worsley Alumina OIP_Offset 4 (Ver 4).pdf (PDF, 5.54 MB)
Appendix G5 - South32 Worsley Alumina OIP_Offset 5 (Ver 4).pdf (PDF, 5 MB)
Appendix G2 - South32 Worsley Alumina OIP_Offset 1 (Ver 4).pdf (PDF, 9.57 MB)
Appendix G1 - South32 Worsley Alumina Biodiversity Offsets Plan_Rev 5D.pdf (PDF, 11.9 MB)
Appendix H1 - Boddington Bauxite Mine Dust Sampling and Analysis Report (2).pdf (PDF, 10.35 MB)
Appendix I - References_March 2024.pdf (PDF, 250.75 KB)
Appendix J1 - Biostat 2023 Phase IV Fauna Studies.pdf (PDF, 15.73 MB)
Appendix J2 - Biostat 2020 Quindanning Small Mammal Study.pdf (PDF, 3.05 MB)
Appendix J3 - Phoenix 2023 BlackCockatoo PHT Assessment.pdf (PDF, 8.08 MB)
Appendix J4 - BIOSTAT 2020 Offset Fauna Habitat Assessment Desktop Study Ecological Values.pdf (PDF, 2.77 MB)
Appendix J5 - Ninox 2012 Vertebrate Fauna Survey Newmont Boddington Gold Mine Waste Rock Disposal Areas.pdf (PDF, 6.66 MB)
Appendix J6 - Finn 2011 Black Cockatoo Habitat Eastern Acquired Lands Newmont Boddington Gold Mine.pdf (PDF, 586.99 KB)
Appendix J7 - Ninox 2012 Vertebrate Fauna Survey Marradong Timber Reserve.pdf (PDF, 4.05 MB)
Appendix J8 - Ninox 2007 Vertebrate Fauna Survey Marradong Timber Reserve.pdf (PDF, 3.49 MB)
Appendix J9 - BIOSTAT 2017-18 Vertebrate Fauna Monitoring Quindanning Timber Reserve.pdf (PDF, 7.28 MB)
Appendix J10 - Ninox 2002 Vertebrate Fauna Quindanning Timber Reserve.pdf (PDF, 5.95 MB)
Appendix J11 - Biostat 2017 Expansion Level 1 Fauna Assessment.pdf (PDF, 6.24 MB)
Appendix J12 - Bamford & Bancroft 2007 Fauna of the bauxite prospective areas around Worsley Refinery.pdf (PDF, 818.32 KB)
Appendix J13 - Ninox 2001 Vertebrate Fauna of Refinery Lease Area and Mornington Mills Block.pdf (PDF, 2.17 MB)
Date published (Proponent response to submissions)
Minor or preliminary work under s. 41A(3)
s. 41A(3) notice
CMS17540 - Notice - 061020.pdf (PDF, 331.51 KB)
Change to proposal during assessment under s. 43A
s. 43A notice
CMS17540 - s43A Notice of Decision - 060120.pdf (PDF, 3.64 MB)
CMS17540 - S43A Notice - 200921.pdf (PDF, 1.03 MB)
CMS17540 - S43A Notice - 140322.pdf (PDF, 1.08 MB)
CMS17540 - S43A Notice - 050923 (PDF, 1.46 MB)
CMS17540 - S43A Notice - 210224.pdf (PDF, 1.92 MB)
Date of approval s. 43A
4. EPA Report on assessment
EPA Report Number
1768
EPA Report
EPA Report 1768 Worsley Mine Expansion.pdf (PDF, 16.85 MB)
Key Environmental Factors
Social Surroundings
Flora and Vegetation
Terrestrial Environmental Quality
Terrestrial Fauna
Inland Waters
Date published
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