Wambo Coal AEMR 2010-2011 - Peabody Energy

2010-2011 AEMROpen CutDuring the reporting period, Downer BlastingServices (DBS) relocated their reload facility fromthe Sarah Marie Dump area to a new site within theRL 140 Dump area.2.4 Mining2.4.1 Production and WasteSummaryConstruction of new reject bin at the CHPPThe CHPP also completed an upgrade at the railload out area to assist in the management of coaloverflow and surface water runoff. The upgradeincluded a new concrete pad for stockpiling smallamounts of coal spillage and an oil water separator.Administration AreaA new vehicle parking area adjacent to the Main CarParking area was completed in early 2011 toincrease the capacity for employee and contractorcar parking by approximately 80 vehicles.North Wambo UndergroundThere were a number of construction activities atthe Underground during the 2010-2011 reportingperiod, including: Completion of Homestead fan construction andcommissioning; Removal of NWU Inpit axial fan; Installation and commissioning of new inpitcentrifugal fan; Development of mains entries into homesteadopen cut pit; Construction of mains heading portals; Development of Maingate 6 portals; Extension of mains conveyor into HomesteadPit; Installation of MG6 conveyor system andgantry; and Installation of Homestead infrastructure such asawnings.Table 2.1 provides a summary of coal production forthe 2010-2011 reporting period. During thereporting period, a combined total of 8.730 (Mt) ofROM coal was mined, representing a 15.1%increase compared with the 2009-2010 reportingperiod.Open cut operations in the reporting period weregenerally in accordance with the Open Cut MOP.The provisional mine production schedule in theOpen Cut MOP for the 2010-2011 reporting periodallowed for approximately 4.1Mt ROM coal mined.The actual ROM coal for reporting period was 4.015Mt. Approximately 194,750.5m 3 of topsoil wasrecovered, whilst no topsoil was used forrehabilitation purposes. Approximately27,583,359bcm of overburden material wasremoved during the reporting period, almost 27%more than the previous AEMR period.Underground operations in the reporting periodwere generally in accordance with the UndergroundMOP. The provisional mine production schedule inthe Underground MOP for the 2010-2011 reportingperiod allowed for approximately 2.81Mt ROM coalmined. The actual ROM coal for reporting periodwas 4.715 Mt.2.4.2 Estimated Mine LifeCoal resources in the Colliery Holding and A444exploration area are approximately 648 Mt withgreater than 65.6% (425.43 Mt) of the resource atmeasured status. WCPL has approval to mine up to14.7 Mt per annum of ROM coal for 21 years from2004 within the Colliery Holding. This mining willtake place through the existing Open Cut operationsin the Whybrow, Redbank Creek, Wambo andWhynot seams and Underground mining in theWambo seam.New Homestead Ventilation FanPage 19