Project Proponent Grange Resources Limited Proposal description The proposal is for a desalination plant located approximately five kilometres (km) west of Cape Riche, and approximately 19 km from the nearest town of Wellstead. The desalination plant would be based on reverse osmosis technology. A seawater intake and pump station would be located 500 m east of Cheyne Inlet, and a brine outfall would be located on the south side of Cape Riche. Pipelines and infrastructure would be also constructed. Assessment Number 1864 Region Great Southern Referred under EP Act s38 Industry sector Infrastructure Last updated November 06, 2023 Current Status Ministerial Statement published 2. Decision on whether to assess this proposal Chair's Determination Assess - Public Environmental Review Extract of determination 1864-ChairDets-070211.pdf (PDF, 39.58 KB) Preliminary Environmental Factors Marine Environmental Quality Flora and Vegetation Date published Monday, February 7, 2011 - 12:00 3. Assessment Scoping Approved Monday, May 30, 2011 - 12:00 Environmental Review Environmental Review documentation Southdown Cape Riche PER document (PDF, 29.11 MB) Appendix A - Flora and Fauna Survey (PDF, 15.11 MB) Appendix B - Bathymetric Map Cheyne Bay (PDF, 47.2 KB) Appendix C - Water Quality Report (PDF, 585.52 KB) Appendix D - Benthic Habitat (PDF, 1.76 MB) Appendix E1 - Marine Mammal Assessment (PDF, 170.41 KB) Appendix E2 - Whale Distribution Maps (PDF, 309.12 KB) Appendix F - Fish Species List (PDF, 6.87 KB) Appendix G1 - Supporting Letters: Wellstead Progress Association (PDF, 240.46 KB) Appendix G2 - Supporting Letters: D Sutcliffe (PDF, 2.97 KB) Appendix H - Brine Toxicity Assessment (PDF, 387.08 KB) Appendix I - Noise Assessment (PDF, 17.39 MB) Appendix J - Visual Impact Assessment (PDF, 16.77 MB) Appendix K - Air Assessment (PDF, 5.5 MB) Appendix L - Aboriginal Archaeological and Enthnographic Survey (PDF, 6.38 MB) Appendix M - Hydrodynamic Modelling Report (PDF, 9.06 MB) Appendix N - Oceanograpic Measurements (PDF, 7.85 MB) Construction Environmental Management Plan (PDF, 1.24 MB) Operational Environmental Management Plan (PDF, 1.61 MB) Brine Discharge Management Plan (PDF, 1.32 MB) Proponent response to submissions Grange Resources- Response to submissions (PDF, 5.56 MB) 4. EPA Report on assessment EPA Report Number 1431 EPA Report Cape Riche- Seawater Desalination Plant (PDF, 2.31 MB) Key Environmental Factors Benthic Communities and Habitats Date published Monday, February 13, 2012 - 12:00 Appeals close Monday, February 27, 2012 - 12:00 5. Decision on proposal and implementation of proposal Ministerial Statement Date of approval Thursday, July 19, 2012 - 12:00 Ministerial Statement Ministerial Statement 904 (PDF, 901.82 KB) Post-assessment changes Notice of Interim Implementation Conditions under Section 46A s46A Notice - One year extension to Time Limit for Proposal Implementation (PDF, 220.33 KB) Date of approval (46a) Friday, July 14, 2017 - 12:00 Section 46 inquiry Cape Riche Seawater Desalination Plant (S46) [2383] Post-Assessment Documentation Date of Approval Thursday, September 28, 2017 - 12:00
