Project Proponent Water Corporation Proposal description The Water Corporation proposes the construction and operation of the Balannup Pressure Main, a 4.5 km wastewater pressure main from the Collared Street Pump Station to the Waterworks Road Pump Station in Armadale. Assessment Number 2081 Region Perth Referred under EP Act s38 Industry sector Infrastructure Last updated May 20, 2025 Related EPA Media Statement EPA to formally assess underground pipeline through Bush Forever bushland EPA recommends approval for underground pipeline: Report 1592 1. Referral Comment on this referral Balannup Wastewater Pressure Main Referral documentation Referral form (PDF, 2.06 MB) Supporting documentation (PDF, 1.69 MB) Supporting documentation - Appendix A (PDF, 8.8 MB) Supporting documentation - Appendix B (PDF, 11.87 MB) Appendix A (PDF, 6.31 MB) Appendices B and C (PDF, 11.68 MB) Appendices D-F (PDF, 5.89 MB) Appendices I - O (PDF, 4.34 MB) Hydrological assessment Appendix G Part 1 (PDF, 13.29 MB) Hydrological assessment Appendix G Part 2 (PDF, 10.31 MB) 2. Decision on whether to assess this proposal Chair's Determination Assess - Assessment on Proponent Information - Category A Extract of determination 14335 CD May 23 2016.pdf (PDF, 144.97 KB) Preliminary Environmental Factors Flora and Vegetation Hydrological Processes Inland Waters Environmental Quality Date published Monday, May 23, 2016 - 12:00 4. EPA Report on assessment EPA Report Number 1592 EPA Report Balannup Wastewater Pressure Main (PDF, 1.64 MB) Proponent documents Appendix 1 EPA scoping guideline.pdf (PDF, 391.11 KB) Appendix 2 ENV 2013 Flora.pdf (PDF, 12.59 MB) Appendix 3-1. Referral Supporting Documentation 2014 AECOM.pdf (PDF, 1.69 MB) Appendix 3-2.EcoPlough.pdf (PDF, 1.82 MB) Appendix 3-3.Route Options Considered.pdf (PDF, 5.68 MB) Appendix 3-4. Trenchless Construction Techniques Analysis.pdf (PDF, 1.38 MB) Appendix 4 - Groundwater Assessment (PDF, 2.06 MB) Appendix 5 - Pressure Main Report on the Geotechnical, Acid Sulfate Soils and Contaminated Sites Investigation - Part 1 (PDF, 12.15 MB) Appendix 5 - Pressure Main Report on the Geotechnical, Acid Sulfate Soils and Contaminated Sites Investigation - Part 2 (PDF, 11.65 MB) Appendix 6 - Draft Acid Sulfate Soil and Dewatering Management Plan (PDF, 6.72 MB) Appendix 7 GHD 2015 Hydrological Study (Part 1).pdf (PDF, 13.23 MB) Appendix 7 GHD 2015 Hydrological Study (Part 2).pdf (PDF, 13.77 MB) Appendix 7 GHD 2015 Hydrological Study (Part 3).pdf (PDF, 13.45 MB) Environmental Review (PDF, 11.71 MB) Key Environmental Factors Flora and Vegetation Hydrological Processes Inland Waters Environmental Quality Date published Monday, January 23, 2017 - 12:00 Appeals close Monday, February 6, 2017 - 12:00 5. Decision on proposal and implementation of proposal Withdrawal of Ministerial Statement Notice of withdrawal of Ministerial Statement s. 47A - Withdrawal of Statement - 200525.pdf (PDF, 64.86 KB) Date withdrawn Tuesday, May 20, 2025 - 12:00 Ministerial Statement Date of approval Tuesday, October 3, 2017 - 12:00 Ministerial Statement Ministerial Statement 1063.pdf (PDF, 683.97 KB)
