This "Search Proposal" function provides all assessment documentation associated with a specific proposal, from referral through to Ministerial Statement, where relevant. Information on a specific proposal not available through this search function can be obtained by contacting DWER, EPA services: info.epa@dwer.wa.gov.au
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Last updated: May 16, 2023
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. Read more...Last updated: September 24, 2007
The proposal is to upgrade the Worsley alumina refinery in order to increase production to 4.4 million tonnes per annum (Mtpa). This is an inquiry under section 46 of the, Environmental Protection Act 1986, into a request to amend the conditions of Ministerial Statement 719 . Read more...Last updated: October 19, 2005
Worsley Alumina’s alumina refinery has existing approval for the production of 3.7 million tonnes per anum (Mtpa) of alumina. This proposal is for the construction and operation of a natural gas-fired, co-generation option. The proposal would be implemented in two stages, each consisting of a gas turbine with a nominal generation capacity of 120 MW electrical output and a heat recovery steam generator (HRSG) of nominally 210 MW steam output. The facility would be located at the Worsley alumina... Read more...Last updated: July 2, 2002
The construction and operation of a 110 MW gas-fired power station at the Boddington Gold Mine approximately 12 km north-west of Boddington and the construction of a natural gas pipeline to the power station, predominantly along the railway reserve between Pinjarra and Boddington. Read more...Last updated: June 30, 1997
The initial proposal by Worsley to develop the Boddington Gold Mine approximately 12km north-west of the town of Boddington was the subject of an EPA evaluation in 1985 (EPA 1985). An Environmental Management Programme was prepared and submitted in 1987 and the mine was commissioned in July 1987. Since that time environmental approvals have been given by the Minister for the Environment for two expansions of throughput, an additional water supply reservoir, the mining of basement and supergene... Read more...Last updated: July 2, 1996
The proposal is to expand alumina production from 2.0 million tonnes per annum to 3.5 million tonnes per annum at the Worsley Alumina Refinery, Collie, and undertake associated bauxite mining activities at Boddington. Read more...Last updated: January 25, 1995
The Boddington Gold Mine was originally assessed by the EPA in 1985. The EPA has subsequently assessed additional project expansions for the mine. Rehabilitation of the mine site is a key element of the commitments and Worsley Alumina has undertaken ongoing studies to assist in the overall rehabilitation. These studies are continuing. Inherent in the original rehabilitation concept for the mine site was the return of waste stockpiles to the mine pits and the maintenance of water quality in... Read more...Last updated: January 21, 1993
The proposal is to develop three small ore bodies to the east of the main ore body at the Boddington Gold Mine. The three small ore bodies are known as the Eastern Anomalies and it is proposed to mine them as an extension of the existing mining operation. The Boddington Gold Mine is located approximately 13 kilometres north-west of the town of Boddington in the South West region of Western Australia. The Eastern Anomalies area is located outside of the 34 Mile Brook catchment in which the main... Read more...Last updated: June 8, 1990
Inquiry under s46 into amending the conditions of Ministerial Statement 85 . Worsley Alumina Pty Ltd submitted a Notice of Intent for the mining and processing of supergene and basement ores at the Boddington Gold Mine in July 1989. Following assessment of the Notice of Intent by the Environmental Protection Authority, the Minister for the Environment issued a statement "that the proposal may be implemented" on 22 November 1989 (Ministerial Statement 85). Further metallurgical... Read more...Last updated: November 22, 1989
The proposal is to mine and process ore from the supergene/basement deposits at the Boddington Goldmine. The supergene orebody is that zone of mineralisation which lies at the interface of the weathered oxide zone and the fresh basement rock. Standard open cut methods, as currently employed for the oxide ore mining operation, will be utilised to mine the deeper supergene and basement ores. The supergene and some basement ores contain copper mineralisation which can interfere with the existing... Read more...Last updated: October 1, 1988
Worsley Alumina has submitted a proposal to upgrade the existing Boddington Gold Mine facilities by increasing the maximum daily process plant throughput from 12,000 tonnes per day to 16,000 tonnes per day Read more...Last updated: February 15, 1988
The proposal is to upgrade the existing Mine facilities by increasing the maximum daily process from 8 000 tonnes to 12 000 tonnes. Ore would continue to be mined from the same orebody currently being mined. It is therefore expected that the proposed increases in the rate of production would shorten the overall project life from fifteen to possibly ten years. The plant facilities required for the upgrading would be an additional crusher, a ball or semi-autogenous grinding mill, additional... Read more...