Newmont Boddington Gold Closure Plan M70/21, M70/22, M70/23, M70/24, M70/25, M70/564, M70/799, M70/1031, ML264SA(1), ML264SA(2), G70/215, G70/218, G70/219, L70/28, L70/95, L70/96 Submission Date December 2012 Version Number CR35945 Contact Details Javier Brodalka, Environment Manager Phone: (08) 9883 4251 Email: [email protected] Date Revision Description of Originator Reviewer(s) Approval Revision December ‐ ‐ K. De Sousa M. Durack, S. J. Brodalka 2012 Myles, R. Kok, A. James Newmont Boddington Gold – Closure Plan Closure Plan Checklist No. Mine Closure Plan Checklist Y/N/NA Section Comments 1 Has the Checklist been endorsed by a senior Y Checklist representative within the tenement holder/ operating company? 2 How many copies were submitted to DMP? Hard copies = 2 Electronic copies = 1 Cover Page, Table of Contents 3 Does the cover page include: Y Cover Page Project title Company name Contact details (including telephone numbers and email addresses) Document ID and version number Date of submission 4 Has a Table of Contents been provided? Y Table of Contents Scope and Project Summary 5 State why the MCP is submitted. Y 1.2 6 Does the project summary include: Y Section 2 Land ownership details 2.2 Location of the project 2.1 Comprehensive site plans 2.4 Background information on the history 2.3 and status of the project Legal Obligations and Commitments 7 Has a consolidated summary or registers of Y Section 3 Appendices 1‐3 closure obligations and commitments been included? Data Collection and Analysis 8 Has information relevant to mine closure been Y Section 4 Appendices 4 ‐ 8 collected for each domain or feature (including pre‐mining baseline studies, environmental and other data)? 9 Has a gap analysis been conducted to determine Y 4.4 if further information is required in relation to closure of each domain or feature? Stakeholder Consultation 10 Have all stakeholders involved in closure been Y 5.1 identified? 11 Has a summary or register of stakeholder Y 5.2 consultation been provided, with details as to who has been consulted and the outcomes? Final Land Use(s) and Closure Objectives 12 Does the MCP include agreed post‐mining land Y Section 6 use(s), closure objectives and conceptual landform design diagram? i Newmont Boddington Gold – Closure Plan Closure Plan Checklist No. Mine Closure Plan Checklist Y/N/NA Section Comments 13 Does the MCP identify all potential (or pre‐ Y Section 6 existing) environmental legacies, which may restrict the post‐mining land use (including contaminated sites)? Identification and Management of Closure Issues 14 Does the MCP identify all key issues impacting Y Section 7 Appendix 11 mine closure objectives and outcomes? 15 Does the MCP include proposed management or Y Section 7 mitigation options to deal with these issues? 16 Has the process, methodology and rationale been Y Section 7 provided to justify identification and management of the issues? Closure Criteria 17 Does the MCP include an appropriate set of Y Section 8 specific closure criteria and/or closure performance indicators? Closure Financial Provisioning 18 Does the MCP include costing methodology, Y Section 9 assumptions and financial provision to resource closure implementation and monitoring? 19 Does the MCP include a process for regular Y Section 9 review of the financial provision? Closure Implementation 20 Does the reviewed MCP include a summary of Y 10.2 closure implementation strategies and activities for the proposed operations or for the whole site? 21 Does the MCP contain a closure work program Y 10.3 for each domain or feature? 22 Have site layout plans been provided to clearly Y 10.1 show each type of disturbance? 23 Does the MCP contain a schedule of research and Y 10.3 trial activities? 24 Does the MCP include a schedule of progressive Y 10.3 rehabilitation activities? 25 Does the MCP include details of how unexpected Y 10.3 closure and care and maintenance will be handled? 26 Does the MCP contain a schedule of Y 10.3.5 decommissioning activities? 27 Does the MCP contain a schedule of performance Y Section 11 monitoring and maintenance activities? Closure Monitoring and Maintenance 28 Does the MCP contain a framework, including Y Section 11 methodology, quality control and remedial strategy for closure performance monitoring including post‐closure monitoring and maintenance? ii Newmont Boddington Gold – Closure Plan Table of Contents Table of Contents 1 Scope and Purpose ....................................................................................................................... 1‐1 1.1 Scope .................................................................................................................................... 1‐1 1.2 Purpose ................................................................................................................................ 1‐1 1.3 Structure .............................................................................................................................. 1‐2 1.4 Closure Planning Framework ............................................................................................... 1‐3 1.4.1 Closure Review Technical Team ................................................................................... 1‐3 1.4.2 Closure Plan Review Process ........................................................................................ 1‐4 1.4.3 Schedule ....................................................................................................................... 1‐4 2 Project Overview .......................................................................................................................... 2‐1 2.1 Project Location and Tenure ................................................................................................ 2‐1 2.2 Land Ownership ................................................................................................................... 2‐1 2.3 Project History ..................................................................................................................... 2‐2 2.4 Overview of Operations ....................................................................................................... 2‐3 2.4.1 Open Pit Mines ............................................................................................................. 2‐4 2.4.1.1 Wandoo North and South Open Pits ....................................................................... 2‐4 2.4.1.2 Satellite Open Pits .................................................................................................... 2‐4 2.4.2 Jarrah Decline ............................................................................................................... 2‐4 2.4.3 Waste Rock Landforms ................................................................................................ 2‐5 2.4.3.1 Waste Rock Landforms 7, 8, 9, 10, 11 and 12 .......................................................... 2‐5 2.4.3.2 Q3 Waste Rock Landform ........................................................................................ 2‐5 2.4.4 ROM Pad and Medium Grade Ore Stockpile ............................................................... 2‐5 2.4.5 Primary Crusher ........................................................................................................... 2‐6 2.4.6 Conveyor Corridor ........................................................................................................ 2‐6 2.4.7 Processing Plant ........................................................................................................... 2‐6 2.4.8 Residue Disposal Areas ................................................................................................ 2‐6 2.4.8.1 R4 RDA ...................................................................................................................... 2‐7 2.4.8.2 F1/F3 RDA ................................................................................................................ 2‐7 2.4.8.3 Future RDA ............................................................................................................... 2‐8 2.4.9 Water Storage Reservoirs and Dams ........................................................................... 2‐8 2.4.10 Support Infrastructure ................................................................................................. 2‐8 2.4.11 Accommodation Village ............................................................................................... 2‐9 3 Closure Obligations and Commitments ....................................................................................... 3‐1 3.1 Legislation ............................................................................................................................ 3‐1 3.1.1 Mining Act 1978 ........................................................................................................... 3‐1 3.1.2 Environmental Protection Act 1986 ............................................................................. 3‐2 3.1.3 Contaminated Sites Act 2003 ....................................................................................... 3‐3 3.1.4 Environmental Protection and Biodiversity Conservation Act 1999 ........................... 3‐3 3.2 Guidelines ............................................................................................................................ 3‐3 3.3 Regulatory Approvals ..........................................................................................................