HVO 2009 Annual Environmental Management Report - Final

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Coal & Allied – Hunter Valley Operations 5.3 OTHER INFRASTRUCTURE....................................................................................................... 183 5.4 REHABILITATION STATUS AT END OF REPORTING PERIOD............................................... 183 5.4.1 West Pit........................................................................................................................... 183 5.4.2 South (Riverview, Cheshunt, Lemington South Pits)...................................................... 184 5.4.3 North (Carrington and North Pits) ................................................................................... 184 5.4.4 Review of Rehabilitation Monitoring and Performance................................................... 185 5.4.5 Decommissioning Closure Plans and Schedules ........................................................... 186 5.4.6 Final Void ........................................................................................................................ 187 5.5 FURTHER DEVELOPMENT OF THE FINAL REHABILITATION PLAN..................................... 187 6 ACTIVITIES PROPOSED IN THE NEXT AEMR PERIOD .................................................................... 188 6.1 PLANS FOR THE 2010 REPORTING PERIOD .......................................................................... 188 AEMR 2009 vi
Coal & Allied – Hunter Valley Operations LIST OF FIGURES Figure 1: HVO Regional Proximity....................................................................................................................... 3 Figure 2: HVO Mine Site Layout.......................................................................................................................... 4 Figure 3: Coal & Allied Environmental Services Organisation Chart for 2009 .................................................. 24 Figure 4: Coal & Allied Product Coal Destinations 2009 ................................................................................... 31 Figure 5: Schematic of the Material Recycling Facility at Thornton .................................................................. 33 Figure 6: Waste Statistics for HVO in 2009....................................................................................................... 33 Figure 7: 2009 HVO Waste Streams ................................................................................................................. 34 Figure 8: Location and Status of Tailings Dams at HVO................................................................................... 36 Figure 9: HVO Water Balance Schematic ......................................................................................................... 40 Figure 10: HVO Salt Balance Schematic Diagram............................................................................................ 41 Figure 11: HVO West Pit Water Management Structures ................................................................................. 45 Figure 12: HVO North Pit Water Management Structures ................................................................................ 46 Figure 13: HVO South Pit Water Management Structure.................................................................................. 47 Figure 14: Location and Status of Levee Banks at HVO................................................................................... 48 Figure 15: Rainfall Summary for 2007 to 2009.................................................................................................. 52 Figure 16: Maximum and Minimum Temperatures for the 2009 Period............................................................ 53 Figure 17: 2009 Annual Wind Rose................................................................................................................... 54 Figure 18: Quarterly Average Wind Roses for HVO in 2009 (Clockwise from top left; January to March, April to June, July to September, and October to December)....................................................................... 54 Figure 19: Ambient Air Monitoring Network at HVO in 2009............................................................................. 56 Figure 20: Dust Depositional Annual Average 2007 to 2009 ............................................................................ 58 Figure 21: Dust Depositional Annual Average Increase 2008 to 2009 ............................................................. 58 Figure 22: Dust Isopleth Annual Average Dust Deposition January 2009 – December 2009 (g/m2/month insoluble matter) at gauges on private and Coal & Allied owned land.............................................. 61 Figure 23: Annual Average HVAS TSP Results 2007 to 2009.......................................................................... 64 Figure 24: Monthly Mean TSP and Rainfall at HVO in 2009............................................................................. 64 Figure 25: Annual Average HVAS PM 10 Results 2007 to 2009......................................................................... 65 Figure 26: Monthly Mean PM 10 and Rainfall at HVO in 2009............................................................................ 66 Figure 27: PM 10 Results for 2009 against 24 Hour Impact Assessment Criteria .............................................. 68 Figure 28: Surface Water Monitoring Network at HVO in 2009 ........................................................................ 72 Figure 29: Hunter River Mean pH, EC and TSS ............................................................................................... 76 Figure 30: Hunter River pH Trends ................................................................................................................... 76 Figure 31: Hunter River EC Trends ................................................................................................................... 77 Figure 32: Hunter River TSS Trends ................................................................................................................. 78 Figure 33: Wollombi Brook pH Trends .............................................................................................................. 79 Figure 34: Wollombi Brook EC Trends.............................................................................................................. 79 Figure 35: Wollombi Brook TSS Trends............................................................................................................ 80 Figure 36: Other Tributaries pH Trends............................................................................................................. 81 Figure 37: Other Tributaries EC Trends ............................................................................................................ 82 AEMR 2009 vii
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HVO 2009 Annual Environmental Management Report - Final

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