Project Proponent Worsley Alumina Pty Ltd Proposal description Worsley Alumina Pty Ltd (Worsley) proposes to upgrade the Worsley refinery in order to increase production to 4.4 million tonnes per annum (Mtpa). Worsley has approval under Part IV of the Environmental Protection Act, 1986 for production of 3.7Mtpa, and the refinery currently operates at 3.25Mtpa. Assessment Number 1526 Region South West Referred under EP Act s38 Industry sector Land use Last updated May 16, 2023 2. Decision on whether to assess this proposal Chair's Determination Environmental Review and Management Programme (ERMP) Preliminary Environmental Factors Flora and Vegetation Landforms Terrestrial Environmental Quality Terrestrial Fauna Hydrological Processes Date published Monday, June 21, 2004 - 12:00 3. Assessment Environmental Review Environmental Review documentation Worsley Alumina ERMP Exec Summary (PDF, 13.8 MB) Proponent response to submissions RTS- Proponent Response.pdf (PDF, 1.68 MB) 4. EPA Report on assessment EPA Report Number 1209 EPA Report EPA Report 1209 - Worsely Alumina (PDF, 1.35 MB) Key Environmental Factors Flora and Vegetation Landforms Terrestrial Fauna Hydrological Processes Date published Monday, November 28, 2005 - 12:00 Appeals close Monday, December 12, 2005 - 12:00 5. Decision on proposal and implementation of proposal Ministerial Statement Date of approval Thursday, April 13, 2006 - 12:00 Ministerial Statement Statement 719.pdf (PDF, 4.95 MB) Post-assessment changes s. 45C amendments Attachment 1 to Statement 719 - Change the power plant from a single coal fired boiler to two circulating fluidized bed co-generation boilers - change to proposal approved on 26 October 2007. Attachment 2 to Statement 719 - Increase the maximum production capacity to 4.7 million tonnes per annum - change to proposal approved on 26 February 2008. Attachment 3 to Statement 719 - Clear 29 hectares of State forest for a lay down area for expansion-related plant and equipment and further stockpiling of overburden material for construction of bauxite residue disposal areas - change to proposal approved on 17 April 2008. Attachment 4 to Statement 719 - Clear 16.5 hectares of State forest to expand freshwater lake at the bauxite refinery - change to proposal approved on 25 July 2008. Attachment 5 to Statement 719 - Install an additional secondary crushing plant adjacent to the existing crushing facilities at Saddleback - change to proposal approved on 23 January 2009. Attachment 6 to Statement 719 - Change to conveyor operations - change to proposal approved under s45C on 27 June 2011. Attachment 7 to Statement 719 – Change to Sulphur Dioxide and Carbon Monoxide emissions – change to proposal approved under s45C on 30 April 2012. Attachment 8 to Statement 719 - Increase in clearing within the Refinery Lease Area from 45.5 to 66.6 ha - change to proposal approved under s45C on 15 April 2016. Attachment 9 to Statement 719 - Construction of a temporary water supply pipeline and associated pumping infrastructure from Wellington Dam to the Worsley Refinery which requires clearing of up to 2 ha of undisturbed native vegetation and up to 6 ha previously native vegetation within Wellington National Park - change to proposal approved under s45C on 30 November 2016. Attachment 10 to Statement 719 - Conversion of the existing coal fired boilers to a natural gas fired facility (boilers) within the existing power and steam raising facilities at the Worsley Alumina Refinery. - change to proposal approved under s45C on 16 May 2023. Attachments Notice and Summary of Reasons.pdf (PDF, 180.56 KB) Date of approval s. 45C Friday, October 26, 2007 - 12:00 Tuesday, February 26, 2008 - 12:00 Thursday, April 17, 2008 - 12:00 Friday, July 25, 2008 - 12:00 Friday, January 23, 2009 - 12:00 Monday, June 27, 2011 - 12:00 Monday, April 30, 2012 - 12:00 Friday, April 15, 2016 - 12:00 Wednesday, November 30, 2016 - 12:00 Tuesday, May 16, 2023 - 12:00
