ILLAWARRA COAL DENDROBIUM MINE AND CORDEAUX COLLIERY ANNUAL REVIEW FY18 CONTENTS Dendrobium Mine and Cordeaux Colliery Annual Review ............................................................... 4 1. Statement of Compliance ........................................................................................................ 5 2. Introduction ............................................................................................................................. 6 3. Approvals ................................................................................................................................ 9 4. Operations During the Reporting Period ................................................................................ 11 5. Actions required from previous Annual Review ..................................................................... 15 6. Environmental Performance .................................................................................................. 17 7. Water Management ............................................................................................................... 53 8. Rehabilitation ........................................................................................................................ 59 9. Biodiversity Offsets................................................................................................................ 60 10. Community ........................................................................................................................ 61 11. Independent audits ............................................................................................................ 64 12. Incidents and Non-compliances during the reporting period .............................................. 66 13. Activities Proposed in the Next Reporting Period ............................................................... 67 14. References ........................................................................................................................ 68 15. Plans ................................................................................................................................. 69 Plan 1a - Location of Mining Domain .......................................................................................... 69 Plan 1b - LW Status as at end of Financial Year ......................................................................... 69 Plan 2 – Dendrobium Mine Site .................................................................................................. 72 Plan 3 – Site Layout – Kemira Valley .......................................................................................... 74 Plan 4 – No. 1 Ventilation Shaft Site Layout ............................................................................... 77 Plan 5 – No.2 and 3 Ventilation Shaft Site Layout ...................................................................... 79 Plan 6 – Exploration Activities – Dendrobium Mine ..................................................................... 81 Plan 7 – Air Quality Monitoring Locations ................................................................................... 83 Plan 8 – Dendrobium Surface Water .......................................................................................... 85 Plan 9 – Noise Monitoring Locations .......................................................................................... 88 Plan 10 – Rehabilitation Areas ................................................................................................... 90 Plan 11 – Cordeaux Colliery Locality Plan .................................................................................. 93 Plan 12 – Cordeaux Colliery Pit Top Infrastructure ..................................................................... 95 Plan 13 – Cordeaux Colliery Pit Top Surface Water management .............................................. 97 Plan 14 – Biodiversity Offset – Maddens Plains.......................................................................... 99 16. Appendices ..................................................................................................................... 101 Appendix A: EPA Annual Return .............................................................................................. 101 Appendix B: Rehabilitation Security Cost Estimate - Department of Resources and Geoscience Only .......................................................................................................................................... 102 Appendix C: Dendrobium Mine Consent Condition Compliance ............................................... 103 Appendix D: Community Complaints Report ............................................................................. 104 Appendix E: Dendrobium Monitoring Data ................................................................................ 105 Appendix F: Closure Plans ....................................................................................................... 106 Dendrobium Mine and Cordeaux Colliery Annual Review 1 Appendix G : Dendrobium Mine Cordeaux Colliery Compliance Audit Program – Catchment Special Areas ........................................................................................................................... 107 Appendix H: Dendrobium Mine Triennial Independant Audit Report FY18 ................................ 108 Figure 1: ROM Production. ......................................................................................................... 11 Figure 2: Exploration Locations .................................................................................................. 13 Figure 3: EPL Dust Deposition Gauge, Average Results Summary. ........................................... 18 Figure 4: HVAS Results. ............................................................................................................. 19 Figure 5: Rainfall and temperature ............................................................................................. 21 Figure 6: Water Quality Data from the Mine Water Holding Lagoon. ........................................... 24 Figure 7: pH and Conductivity at the Cordeaux Filter Lagoon Underflow. ................................... 24 Figure 8: Site R1 Noise Compliance (LAeq, 15 min). .................................................................. 29 Figure 9: Site R6a Noise Compliance (LAeq, 15 min). ................................................................ 29 Figure 10: Site R39A Noise Compliance (LAeq, 15 min). ........................................................... 29 Figure 11: Subsidence impacts observed during the Reporting Period. ...................................... 47 Figure 12: Principal Response Flowchart in “Cordeaux Reservoir DSC Notification Area Contingency Plan”. ..................................................................................................................... 53 Figure 13: Mine Water Balance .................................................................................................. 53 Figure 14: Dendrobium Community Complaints. ........................................................................ 61 Table 1: Annual Review Overview ................................................................................................ 4 Table 2: Statement of Compliance................................................................................................ 5 Table 3: Contacts. ........................................................................................................................ 8 Table 4: Development Consent Approvals associated with Dendrobium Mine .............................. 9 Table 5: Mining Leases associated with Dendrobium Mine........................................................... 9 Table 6: Licences associated with Dendrobium Operations. ......................................................... 9 Table 7: Current Mining Approvals for the Dendrobium Operations. ............................................. 9 Table 8: Consents Leases and Licences for the Cordeaux Colliery. ........................................... 10 Table 9: Area 3 Longwall Start and Finish Dates. ....................................................................... 11 Table 10: Production Summary .................................................................................................. 12 Table 11: Arising Actions from Previous Dendrobium Annual Review and Triennial Audit .......... 15 Table 12: Relevant Standard for Air Quality. ............................................................................... 18 Table 13: Summary of Water Quality Results – Dend 7 (Upstream of KVCLF) ........................... 21 Table 14: Summary of Water Quality Results – Dend 10 (Downstream of KVCLF) .................... 21 Table 15: Summary of Water Quality Results – Dend 12 (Upstream of Pit Top) ......................... 22 Table 16: Summary of Water Quality Results – Dend 13 (Downstream of Pit Top) ..................... 22 Table 17: Monitoring Requirements and Prescribed Limits for LDP5 .......................................... 22 Table 18: EPL Annual Return Monitoring Summary ................................................................... 23 Table 19: Monitoring Requirements and Prescribed Limits ......................................................... 28 Table 20: Rail Haulage Noise Criteria. .......................................................................................