HVO 2009 Annual Environmental Management Report - Final

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Coal & Allied – Hunter Valley Operations 2.7 ORE AND PRODUCT STOCKPILES 2.7.1 Stockpile Capacity Each different CPP site has different storage facilities for processed (saleable) and unprocessed (ROM) coal. The capacity of each site is listed in Table 11. Table 11: Stockpile Capacities Location ROM (t) Saleable (t) Hunter Valley CPP 100,000 297,000 (HVLP) Howick CPP 15,000 30,000 Lemington CPP (care & maintenance) 75,000 700,000 Newdell CPP 0 600,000 2.7.2 Changes or Additions to Process or Facilities during 2009 The Lemington CPP has been inactive for the entire 2009 period. Howick CPP was operated during 2009 for the processing of coal from West Pit. Newdell CPP site is currently being used as a second loading facility. 2.7.3 Changes in Product Transport Once the coal has been processed, it is then transported to one of the various loading points via conveyor belt or road. The coal from HVCPP is transported to the HVLP by means of overland conveyor with a total of 10 million tonnes of coal moved by this method in 2009. A further 0.76 million tonnes of processed coal was moved from Howick CPP to Newdell Load Point for transport. HVO also has the capacity to transport coal by conveyor belt directly to a local power station. During 2009, 0.41 million tonnes of coal was handled by this method. During the year 0.35 million tonnes of coal was transported from HVLP to Newdell Load Point. Under the HVO DA 450-10-2003, Coal & Allied have been granted an exemption to Schedule 4 Condition 51, and are no longer required to wash the wheels of trucks entering public roads. After the coal has reached either HVLP or the Newdell Load Point, the bulk of it is transported to Newcastle by the rail network. During 2009, 10.80 million tonnes of coal was transported by this method. Currently, both HVCPP and Howick CPP are in operation, with coal processing facilities suspended at the Lemington CPP. During 2009 there was a total of 13.50 million tonnes of ROM coal processed by the HVCPP and 1.50 million tonnes by the Howick CPP. The HVCPP is in operation 24 hours a day, seven days a week. The Howick CPP operates 24 hours per day for five days a week. Table 12 outlines the details for product tonnes transported throughout the HVO site in 2009. AEMR 2009 37
Coal & Allied – Hunter Valley Operations Table 12: Coal Transported at HVO during 2009 Category of Transport Quantity Coal transported from the site (million tonnes) via trains 10.80 Coal received from HVO South of the Hunter River (million tonnes) 7.53 Coal hauled by road to the Hunter Valley Load Point NIL Coal hauled by road to the Newdell Load Point (million tonnes) 1.11 Coal hauled by road from the Newdell Load Point to the Ravensworth Coal Terminal Coal hauled by road from the Hunter Valley Load Point to the Ravensworth Coal Terminal NIL NIL Number of coal haulage truck movements (on site) generated by the development* 75,000 This is assuming that the average payload per truck is 200 tonnes and does not account for contractor haulage. 2.8 WATER MANAGEMENT The objective of the HVO Water Management Strategy is to manage all surface and sub-surface water so that: Fresh water usage is minimised; Impacts on the environment and HVO neighbours are minimised; and Interference to mining production is minimal. This is achieved by: Minimising freshwater use from the Hunter River; Preferentially using mine water for coal preparation and dust suppression; An emphasis on control of water quality and quantity at the source; Segregating waters of different quality where practical; Recycling on-site water; Ongoing maintenance and review of the system; and Disposing of water to the environment in accordance with statutes and regulations. 2.8.1 Water Balance A 2009 static water balance for HVO is presented in Table 13 and a simplified schematic of this balance is included as Figure 9. The water balance is for a coal production rate of 15 million tonnes per year ROM and 11.2 million tonnes per year of product. The elements of the static water balance most affected by climate show the largest variation year to year. Those elements of the water balance mainly affected by process show the least variation from year to year, and remain within a reasonably narrow and predictable band (eg the volume of water pumped in tails depends mainly on the tonnage of coal processed and the level of control of the tailings density). A salt flux schematic is shown in Figure 10. A comparison of the water balance with the 2004 West Pit EIS (Environmental Impact Statement) water balance prediction is presented in Appendix 9. AEMR 2009 38
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HVO 2009 Annual Environmental Management Report - Final

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