Project Proponent BHP Billiton Petroleum Pty Ltd Proposal description The proposal is to construct a sub sea pipeline, onshore gas treatment and compression plant, and sales gas pipeline. The subsea pipeline from the Macedon Gas Field (100 kilometres west of Onslow) connects to the onshore gas treatment and compression plant at Ashburton North (15 kilometres southwest of Onslow). The sales gas pipeline connects the onshore facility to the Dampier to Bunbury Natural Gas (DBNG) Pipeline. Assessment Number 1838 Region Pilbara Referred under EP Act s38 Industry sector Industrial Infrastructure Oil and gas Last updated January 17, 2012 Current Status Ministerial Statement published 2. Decision on whether to assess this proposal Chair's Determination Environmental Protection Statement (EPS) Extract of determination Chairman's Determination - Macedon Gas Development (PDF, 39.3 KB) Preliminary Environmental Factors Benthic Communities and Habitats Marine Fauna Flora and Vegetation Terrestrial Fauna Date published Monday, July 5, 2010 - 12:00 4. EPA Report on assessment EPA Report Number 1360 EPA Report Report 1360 - Macedon Gas Development (PDF, 2.06 MB) Key Environmental Factors Benthic Communities and Habitats Marine Fauna Flora and Vegetation Terrestrial Environmental Quality Terrestrial Fauna Date published Monday, July 5, 2010 - 12:00 Appeals close Monday, July 19, 2010 - 12:00 5. Decision on proposal and implementation of proposal Ministerial Statement Date of approval Thursday, October 28, 2010 - 12:00 Ministerial Statement Ministerial Statement 844 - Macedon Gas Development (PDF, 2.8 MB) Post-assessment changes s. 45C amendments Attachment 1 to Statement 844 – Offshore pipeline realignment and change to water supply – change to proposal approved under section 45C on 17 January 2012. Date of approval s. 45C Tuesday, January 17, 2012 - 12:00