Works Approval Supporting Document
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Works Approval Supporting Document Paraburdoo Iron Ore Mine – L5275/1972/12 July 2020 RTIO-HSE-0344902 RTIO-HSE-0344902 Disclaimer and Limitation This report has been prepared by Rio Tinto Iron Ore (Rio Tinto), on behalf of Hamersley Iron Pty Limited, specifically for the Paraburdoo Iron Ore Mine and Eastern Range Project. Neither the report nor its contents may be referred to without the express approval of Rio Tinto, unless the report has been released for referral and assessment of proposals. Document Status Approved for Issue Rev Author Reviewer/s Date To Whom Date Jennifer Major Jessica Hay Ewan Botterill Department of Water Jaclyn Ennis- A Cecilia LazoSkold June 2020 and Environmental Date 1 July 2020 John Jason Lee Regulation Kiarrah Thomas Lisa Terrusi RTIO-HSE-0322902 TABLE OF CONTENTS 1 APPLICANT DETAILS ............................................................................................ 4 2 INTRODUCTION ..................................................................................................... 5 3 PREMISES DETAILS.............................................................................................. 8 3.1 Premises Description ............................................................................................................... 8 3.1 Land Tenure ............................................................................................................................ 8 4 PROPOSED ADMINSTRATIVE CHANGES ......................................................... 12 5 TSF1 NORTHER CELL RAISE - PROPOSED INFRASTRUCTURE AND EQUIPMENT ......................................................................................................... 14 5.1 Overview ................................................................................................................................ 14 5.2 Construction Phase ............................................................................................................... 16 5.1 Environmental Commissioning .............................................................................................. 16 5.2 Time Limited Operations........................................................................................................ 17 5.3 Operations and Monitoring .................................................................................................... 17 5.4 Design and Tailings Studies .................................................................................................. 20 6 WASTE DUMP LANDFILL - PROPOSED INFRASTRUCTURE AND EQUIPMENT ......................................................................................................... 24 6.1 Overview ................................................................................................................................ 24 6.2 Construction ........................................................................................................................... 25 6.3 Time Limited Operations........................................................................................................ 25 6.4 Operations ............................................................................................................................. 25 6.5 Subsequent Landfill Facilities ................................................................................................ 26 7 CLEARING ........................................................................................................... 28 8 STAKEHOLDER AND COMMUNITY CONSULTATION ....................................... 28 8.1 Regulator Consultation .......................................................................................................... 28 8.2 Community Consultation........................................................................................................ 28 8.3 Traditional Owners ................................................................................................................. 29 9 OTHER APPROVALS, LICENCES AND PERMITS ............................................. 29 9.1 State Agreement Act .............................................................................................................. 29 9.2 Environmental Protection Act 1986 (Part IV) ......................................................................... 29 9.3 Environmental Protection Act 1986 (Part V) .......................................................................... 30 9.1 Mining Act 1978 ..................................................................................................................... 30 9.2 Rights in Water and Irrigation Act 1914 ................................................................................. 31 10 SITING AND LOCATION ...................................................................................... 31 11 ENVIRONMENTAL SITING CONTEXT ................................................................ 39 11.1 Climate ................................................................................................................................... 39 11.2 Topography ............................................................................................................................ 39 11.3 Geology and Soils .................................................................................................................. 39 11.4 Hydrology ............................................................................................................................... 41 11.5 Hydrogeology ......................................................................................................................... 41 11.6 Flora and Fauna .................................................................................................................... 44 12 RISK IDENTIFICATION AND ASSESSMENT...................................................................... 46 13 EMISSIONS, MANAGEMENT AND CONTROLS ................................................................ 54 13.1 Discharges to the Environment – Windblown litter ................................................................ 54 13.2 Discharges to the Environment – Liquid Waste .................................................................... 54 14 REHABILITATION AND CLOSURE ..................................................................................... 55 i RTIO-HSE-0344902 15 PROJECT COSTS ................................................................................................................ 56 REFERENCES ...................................................................................................................................... 57 Appendix 1 ........................................................................................................................................... 58 Paraburdoo Tailings Storage Facility Part V Works Approval Application Supporting Documentation (GHD, 2020a) ............................................................................................. 58 Appendix 2 ........................................................................................................................................... 59 Proposed Landfill – Distance to Groundwater ................................................................................. 59 Appendix 3 ........................................................................................................................................... 61 Flocculant Safety Data Sheet ............................................................................................................. 61 TABLES Table 3-1: Indicative coordinates of the proposed TSF1 Northern Cell Wall Raise ............................ 8 Table 3-2: Indicative coordinates of the proposed Landfill .................................................................. 8 Table 4-1: Indicative coordinates of the removed and replaced monitoring bores ............................ 12 Table 5-1: Proposed TSF 1 Embankment Raise Infrastructure and Equipment ............................... 15 Table 5-2: Proposed waste fines water quality monitoring schedule................................................. 18 Table 5-3: Stability Assessment Results ........................................................................................... 21 Table 9-1: Prescribed Premise category details under existing Licence L5275/1972/12 .................. 30 Table 10-1: Nearby environmentally sensitive receptors and aspect .................................................. 32 Table 11-1: Records of Conservation Significance Flora Species identified in Project Area .............. 44 Table 11-2: Weeds of National Significance Identified in Project Area ............................................... 45 Table 12-1: Risk Rating Matrix............................................................................................................. 46 Table 12-2: Consequence Matrix ......................................................................................................... 47 Table 12-3: Likelihood Matrix ............................................................................................................... 47 Table 12-4: Risk Assessment - TSF 1 Northern Cell Wall Raise ........................................................ 48 Table 12-5: Risk Assessment – Proposed Landfill .............................................................................. 50 Table 15-1: Estimated Project Costs ..................................................................................................