Annual Review

Annual Review

CENTENNIAL MANDALONG PTY LTD Mandalong Mine ANNUAL REVIEW March 2017 Contents 1 STATEMENT OF COMPLIANCE ................................................................................................... 1 2 INTRODUCTION ............................................................................................................................. 4 2.1 OVERVIEW ............................................................................................................................. 5 2.2 SCOPE .................................................................................................................................... 5 2.3 SUMMARY OF WORKS .......................................................................................................... 6 2.3.1 Mandalong Mine .................................................................................................................. 6 2.3.2 Delta Entry Site ................................................................................................................... 6 2.3.3 Cooranbong Entry Site ........................................................................................................ 6 2.3.4 Cooranbong Haulage Road ................................................................................................ 7 3 APPROVALS .................................................................................................................................. 9 3.1 DEVELOPMENT CONSENTS .............................................................................................. 12 3.2 MINING AUTHORITIES ........................................................................................................ 15 3.3 ENVIRONMENT PROTECTION LICENCE ........................................................................... 15 3.4 AUTHORISATIONS & EXPLORATION LICENCES .............................................................. 15 3.5 CONSENT CONDITIONS – ANNUAL REVIEW REQUIREMENTS ...................................... 15 4 OPERATIONS SUMMARY ........................................................................................................... 17 4.1 OTHER OPERATIONS ......................................................................................................... 17 4.2 EXPLORATION ..................................................................................................................... 18 5 ACTIONS REQUIRED FROM PREVIOUS ANNUAL REVIEW ................................................... 19 5.1 MINE WATER REDUCTION TARGETS ............................................................................... 20 5.2 WASTE MANAGEMENT ....................................................................................................... 21 6 ENVIRONMENTAL PERFORMANCE ......................................................................................... 22 6.1 NOISE MONITORING ........................................................................................................... 22 6.1.1 Summary of Noise Monitoring Results .............................................................................. 23 6.2 BLAST MONITORING ........................................................................................................... 24 6.3 AIR QUALITY MONITORING ................................................................................................ 24 6.3.1 Mandalong ......................................................................................................................... 24 6.3.2 Delta Entry Site ................................................................................................................. 26 6.3.3 Cooranbong Entry Site ...................................................................................................... 27 6.3.4 Air Quality Monitoring Data Interpretation ......................................................................... 28 6.3.5 Particulate Matter .............................................................................................................. 30 6.3.6 Greenhouse Gas Monitoring ............................................................................................. 31 6.3.7 Greenhouse Gas Abatement Investigations Measures .................................................... 32 6.4 WETLAND MONITORING .................................................................................................... 34 6.5 VAM-RAB REHABILITATION OFF-SET MONITORING ....................................................... 39 6.6 GREEN & GOLDEN BELL FROG RESEARCH PROGRAM ................................................. 41 6.7 CULTURAL HERITAGE & ARCHAEOLOGY ........................................................................ 41 6.7.1 Aboriginal Archaeology –LW18-21 SMP Area .................................................................. 41 6.7.2 Aboriginal Archaeology –LW22-23 Extraction Plan Area ................................................. 42 6.7.3 Mandalong South Surface Site (MSSS) Archaeological Investigations ............................ 43 6.7.4 European Heritage ............................................................................................................ 46 6.8 RAINFALL MONITORING RESULTS ................................................................................... 46 6.9 SUBSIDENCE MONITORING ............................................................................................... 48 6.9.1 Subsidence Performance Measures ................................................................................. 48 6.9.2 Subsidence Reporting ....................................................................................................... 49 6.9.3 Subsidence Performance Summary ................................................................................. 49 6.10 AGRICULTURAL LAND SUITABILITY ................................................................................. 59 6.10.1 Agricultural Suitability Classification.............................................................................. 59 6.10.2 Assessment of Agricultural Suitability ........................................................................... 60 6.10.3 Agricultural Suitability Impact Assessment ................................................................... 60 6.11 FLOODPATH MONITORING ................................................................................................ 67 7 WATER MANAGEMENT .............................................................................................................. 69 Page ii 7.1 SURFACE WATER MONITORING ....................................................................................... 69 7.1.1 Mandalong & Cooranbong Entry Site................................................................................ 69 7.1.2 Cooranbong Haul Road .................................................................................................... 69 7.1.3 Surface Water Monitoring Results .................................................................................... 71 7.1.4 Data Interpretation............................................................................................................. 75 7.2 WATER BUDGET ................................................................................................................. 76 7.2.1 Water Supply, Use & Discharge ........................................................................................ 76 7.2.2 Mine Water Management .................................................................................................. 77 7.3 GROUNDWATER MANAGEMENT....................................................................................... 78 7.3.2 Groundwater Monitoring Results ....................................................................................... 81 7.3.3 Groundwater Levels .......................................................................................................... 85 7.3.4 Groundwater Quality ......................................................................................................... 85 8 REHABILITATION ........................................................................................................................ 87 8.1 PROGRESSIVE REHABILITATION AND COMPLETION .................................................... 88 8.2 MANDALONG MINE REHABILITATION ............................................................................... 89 8.2.1 Longwall Mining Area ........................................................................................................ 89 8.2.2 Exploration Sites ............................................................................................................... 90 8.2.3 Delta Entry Site ................................................................................................................. 90 8.2.4 Cooranbong Entry Site ...................................................................................................... 90 8.2.5 Cooranbong Haul Road .................................................................................................... 90 8.3 BUILDINGS ........................................................................................................................... 91 8.3.1 Mandalong Mine ................................................................................................................ 91 8.3.2 Delta Entry Site ................................................................................................................

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