ProjectProponent: BHP Billiton Petroleum Pty LtdProposal 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: 1838Region: PilbaraReferred under EP Act: s38Industry sector: IndustrialInfrastructureOil and gasLast updated: January 17, 2012Current Status: Ministerial Statement published 2. Decision on whether to assess this proposalChair'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 HabitatsMarine FaunaFlora and VegetationTerrestrial FaunaDate published: Monday, 5 July, 2010 4. EPA Report on assessmentEPA Report Number: 1360EPA Report: Report 1360 - Macedon Gas Development (PDF, 2.06 MB)Key Environmental Factors: Benthic Communities and HabitatsMarine FaunaFlora and VegetationTerrestrial Environmental QualityTerrestrial FaunaDate published: Monday, 5 July, 2010Appeals close: Monday, 19 July, 2010 5. Decision on proposal and implementation of proposalMinisterial StatementDate of approval: Thursday, 28 October, 2010Ministerial Statement: Ministerial Statement 844 - Macedon Gas Development (PDF, 2.8 MB) Post-assessment changess. 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, 17 January, 2012