Olympic Dam Expansion Draft Environmental Impact Statement 2009 Executive Summary
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OLYMPIC DAM EXPANSION DRAFT ENVIRONMENTAL IMPACT STATEMENT 2009 EXECUTIVE SUMMARY Olympic Dam Expansion Draft Environmental Impact Statement 2009 Executive Summary 1 DISCLAIMER The Draft Environmental Impact Statement (Draft EIS) has been prepared by Arup Pty Ltd and ENSR Australia Pty Ltd (Arup/ENSR) on behalf of BHP Billiton Olympic Dam Corporation Pty Ltd (BHP Billiton) for submission to the Commonwealth Minister for Environment, Heritage and the Arts under the Environment Protection and Biodiversity Conservation Act 1999 (Commonwealth), the South Australian Minister for Mineral Resources Development under the Development Act 1993 (SA) and the Roxby Downs (Indenture Ratification) Act 1982 (SA) (and the indenture scheduled to that Act) and the Northern Territory Minister for Natural Resources, Environment and Heritage under the Environmental Assessment Act and the Environmental Assessment Administrative Procedures (together, the Ministers). The Draft EIS has been prepared for that purpose only and no one other than the Ministers should rely on the information contained in the Draft EIS to make any decision. In preparing the Draft EIS, Arup/ENSR and BHP Billiton have relied on information provided by specialist consultants, government agencies and other third parties available during preparation. BHP Billiton has not fully verified the accuracy or completeness of that information, except where expressly acknowledged in the Draft EIS. The Draft EIS has been prepared for information purposes only and, to the full extent permitted by law, BHP Billiton, in respect of all persons other than the Ministers, makes no representation and gives no warranty or undertaking, express or implied, in respect of the information contained in the Draft EIS and does not accept responsibility and is not liable for any loss or liability whatsoever arising as a result of any person acting or refraining from acting on any information contained in the Draft EIS. NOTE ON CURRENCY Where possible, the contents of the Draft EIS are up to date as at 9 December 2008. This was not possible where parts of the Draft EIS were prepared from information provided by third parties (as discussed above) prior to the document being concluded. COPYRIGHT © The concepts and information contained in this document are the property of BHP Billiton. Use or copying of this document in whole or in part without the written permission of BHP Billiton constitutes an infringement of copyright. ISBN 978-0-9806218-0-8 (set) ISBN 978-0-9806218-1-5 (summary) 2 Olympic Dam Expansion Draft Environmental Impact Statement 2009 Executive Summary CONTENTS PREFACE 7 OVERVIEW OF THE PROPOSED EXPANSION 9 The project 9 Project need 10 THE PROPONENT 13 STAKEHOLDER CONSULTATION AND ENGAGEMENT 14 Consultation to date 14 Public consultation 15 THE EXISTING OLYMPIC DAM OPERATION 16 Mining and processing 16 Regulatory compliance and reporting 16 Arid Recovery 19 THE OLYMPIC DAM EXPANSION 20 Mining 20 Rock storage facility 21 Processing 21 Tailings storage 25 Water supply 25 Electricity supply 26 Materials handling and transport 28 Workforce and accommodation 34 Olympic Dam Expansion Draft Environmental Impact Statement 2009 Executive Summary 3 4 Olympic Dam Expansion Draft Environmental Impact Statement 2009 Executive Summary CONTENTS MANAGING THE IMPACTS OF THE EXPANSION 36 Mining, processing and linear infrastructure 36 Desalination plant 43 Landing facility 48 Road transport 48 Electricity supply 48 Greenhouse gas emissions 48 Roxby Downs and Andamooka 49 Aboriginal cultural heritage 51 Economics 53 Rehabilitation and closure 54 Environmental management programs 54 BHP BILLITON’S MAJOR COMMITMENTS 55 Expansion 55 Ongoing operation of expanded project 56 NEXT STEPS 57 HOW TO OBTAIN MORE INFORMATION AND MAKE YOUR VIEWS KNOWN TO GOVERNMENT 57 ABBREVIATIONS 59 Acronyms 59 Units of measurement 59 Olympic Dam Expansion Draft Environmental Impact Statement 2009 Executive Summary 5 6 Olympic Dam Expansion Draft Environmental Impact Statement 2009 Executive Summary PREFACE BHP Billiton is seeking the approval of the Australian, South by the proposal and others with a broader interest in the Australian and Northern Territory governments for a significant project’s implications. expansion of its existing mining and processing operation at Olympic Dam in northern South Australia (Figure 1). The public exhibition of the Draft EIS extends this consultation and engagement by providing the opportunity for individuals, Should all necessary approvals be granted, BHP Billiton groups and organisations to express their views about the would commit to substantial capital investment at Olympic proposal before the Australian, South Australian and Northern Dam and elsewhere, which would more than double direct Territory governments decide whether or not to approve the employment at Olympic Dam, provide significant opportunities project. Information about how and when to make a submission to third-party businesses, and increase considerably is provided at the end of this summary document. government and export revenues. The geographic area studied for the Draft EIS has been termed The expansion is centred on the creation of a new open pit mine the EIS Study Area. It extends beyond the area of mining and that would lift ore production six-fold and require expanded minerals processing operations at Olympic Dam and the Roxby minerals processing facilities. Major support infrastructure Downs township to take in the land in the wider region of South would also be built, including a coastal desalination plant, a Australia and in Adelaide and Darwin on which it is proposed to new power line and possibly a gas-fired power station, a rail establish infrastructure. The EIS Study Area provides a context line, an airport, port facilities, a village to accommodate for understanding and assessing local and regional impacts. workers, and more housing, retail, commercial and community The Environment Protection and Biodiversity Conservation Act facilities in the Roxby Downs township where much of Olympic 1999 (EPBC Act) does not require impacts beyond Australia’s Dam’s operational workforce would continue to live. jurisdiction to be assessed. The proposed expansion is a large and complex project. A To ensure the Draft EIS is widely accessible, there is an detailed and technical Draft Environmental Impact Statement electronic resource at <www.bhpbilliton.com/odxeis>, which (Draft EIS) has been prepared to comply with the guidelines simplifies and clarifies some of the complex studies that support set by the three governments and to explain the impacts and the Draft EIS through animations and modelling simulations. benefits of the proposed actions. The Draft EIS informs decision-makers and stakeholders about the need for the This Executive Summary is not a reproduction of the Draft EIS in project, potential environmental, social, cultural and economic miniature. It seeks to explain the project as a whole and the issues arising in the construction and operation phases and at main impacts and benefits in the places where the project closure, and how these issues would be managed. In preparing would be located, but does not attempt to cover every feature the Draft EIS, BHP Billiton has consulted widely and taken of the project, nor every impact it would have. account of the views of stakeholders potentially affected Olympic Dam Expansion Draft Environmental Impact Statement 2009 Executive Summary 7 Darwin Alice Springs Lake Brisbane Eyre Roxby Downs Perth Sydney Canberra Adelaide Melbourne Coober Pedy Hobart Marree OLYMPIC DAM Lyndhurst Andamooka Roxby Downs s nge Lake Ra Lake rs Woomera Torrens Windabout Pimba linde Pernatty F Island Lagoon Lagoon Port Augusta Whyalla Point Lowly Port Pirie Upper Eyre Spencer Peninsula Gulf Yorke Peninsula Spencer Gulf Gulf St Vincent ADELAIDE Existing Olympic Dam Special Mining Lease 020406080100 Existing Roxby Downs Municipality km Figure 1 Location of Olympic Dam 8 Olympic Dam Expansion Draft Environmental Impact Statement 2009 Executive Summary OVERVIEW OF THE PROPOSED EXPANSION The project The major items of infrastructure required to support the expansion of mining and minerals processing would include: The proposed expansion would be a progressive development, requiring construction activity over a period of 11 years to • a 280 megalitre per day (ML/d) coastal desalination plant at increase production to the levels shown in Table 1. Off-site Point Lowly on the Upper Spencer Gulf (to supply 200 ML/d infrastructure would be built and operational in time to deliver of additional water via a 320 km pipeline connection to inputs to, and export products from, the expanded operation Olympic Dam and with the potential to supply 80 ML/d for as required (Figure 2). the South Australian Government to replace River Murray water to Upper Spencer Gulf and Eyre Peninsula regions) When dates are mentioned in the context of the project • either a new 270 km electricity transmission line from activities it has been assumed that all necessary approvals Port Augusta to Olympic Dam, or a gas pipeline from would be obtained in 2010 and work commenced soon Moomba and a new gas-fired power station at Olympic afterwards. The project configuration is based on an 11 year Dam, or a hybrid solution that is a combination of these construction period, however the project schedule ultimately two supply methods will depend on the timing and nature of government approvals • a 105 km rail line to connect Olympic Dam to the national