Project Proponent Water Corporation Proposal description The Water Corporation of Western Australia proposes to construct, commission, operate and maintain a new wastewater treatment plant (WWTP) on a portion of the C class Crown reserve No. 29778 (Forestry Purposes) on Chugg Street, north-east of the Walpole townsite. That portion of the reserve is predominantly cleared and used as a depot for the Department of Conservation and Land Management. Assessment Number 1154 Region South West Referred under EP Act s38 Industry sector Infrastructure Last updated May 25, 2026 Current Status Ministerial Statement withdrawn under s.47A 2. Decision on whether to assess this proposal Chair's Determination Consultative Environmental Review Preliminary Environmental Factors Flora and Vegetation Hydrological Processes Inland Waters Environmental Quality Date published Friday, 4 April, 1997 3. Assessment Environmental Review Environmental Review documentation Consultative Environmental Review document (PDF, 28.49 MB) 4. EPA Report on assessment EPA Report Number 909 EPA Report Waste water treatment plant, Walpole (PDF, 1.92 MB) Key Environmental Factors Flora and Vegetation Hydrological Processes Inland Waters Environmental Quality Water Date published Friday, 13 November, 1998 5. Decision on proposal and implementation of proposal Withdrawal of Ministerial Statement Notice of withdrawal of Ministerial Statement Notice to Withdraw Statement_1.pdf (PDF, 313.76 KB) Date withdrawn Monday, 25 May, 2026 Ministerial Statement Date of approval Tuesday, 2 February, 1999 Ministerial Statement Ministerial Statement 493 (PDF, 449.93 KB) Post-assessment changes Section 46 inquiry Wastewater Treatment Plant, Stage 1 at Chugg Street Walpole (s46)
