Wambo Coal AEMR 2010-2011 - Peabody Energy

aemcWambo Coal Mine, Rail Loop and Coal LoaderIndependent Environmental Audit – Minister’s Condition of ApprovalPerformance Measures – Built Features22AThe Applicant shall ensure that the development does not causeany exceedances of the performance measures in Table 14B, to thesatisfaction of the Director-General of DII.Table 14B: Subsidence Impact Performance MeasuresBuilt FeaturesAll built featuresPublic SafetyAlways safe. Serviceability should bemaintained wherever practicable. Loss ofserviceability must be fully compensated.Damage must be fully repairable, and mustbe fully repaired or else replaced or fullycompensated.Public Safety No additional riskNotes:1) The Applicant will be required to define more detailedperformance indicators for each of these performance measures inBuilt Features Management Plans or Public Safety ManagementPlan (see condition 22C below).2) The requirements of this condition only apply to the impacts andconsequences of mining operations undertaken following the date ofmodification 9.3) Requirements regarding safety or serviceability do not preventpreventative or mitigatory actions being taken prior to or duringmining in order to achieve or maintain these outcomes.4) Compensation required under this condition includes anycompensation payable under the Mine Subsidence CompensationAct 1961 and/or the Mining Act 1992. Wambo Coal Longwall 1End-of-Panel Report, 16 Oct2009 Wambo Coal Longwall 2End-of-Panel Report, 24 Aug2010YesOngoingThe End-of-Panel Reports for Longwall 1 and 2 conclude that themonitoring of actual subsidence along the monitoring lines for eachlongwall indicated that the actual S max values across all chainages fall withinthe predicted subsidence movements as outlined in the SMP.Supplementary environmental monitoring indicated n=minimal impact ongroundwater, surface water quality and creek bed condition fromsubsidence related to the coal extraction from LW1 and LW2.Longwall underground mining commenced in Longwall Panel1 (LW1) in October 2007 and was completed in January2009. Longwall mining commenced LW2 during March 2009.At the end of the reporting period LW3 had retreatedapproximately 500m.Subsidence monitoring is currently undertaken for longwallpanels in accordance with WCPL‟s approved SMP. Theresults of subsidence monitoring are reported to the DII asrequired in the SMP. Subsidence in the South Wambo andStony Creek areas is further discussed in Section 5.1.2 of thisreport.Baseline Riparian Vegetation and Bed Bank StabilityMonitoring Programs were initiated in North Wambo, SouthWambo and Stony Creeks in 2006.The Riparian Vegetation and Bed Bank Stability MonitoringProgram continued in during the 2009-2010 reporting period.22BAny dispute between the Applicant and the owner of any builtfeature over the interpretation, application or implementation of theperformance measures in Table 14B is to be settled by the Director-General of DII. The Director-General of DII may seek the advice ofthe MSB on the matter. Any decision by the D-G of DII shall be finaland not subject to further dispute resolution under this consentNotedExtraction Plan22CThe Applicant shall prepare and implement an Extraction Plan forthe second workings within each seam to be mined to the Wambo Coal Longwall 1End-of-Panel Report, 16 OctA Subsidence Management Plan for 2005 to 2012 for firstworkings in the Wambo Seam was approved by DPI- MineralResources in October 2005 with mining commencing intrevor brown & associates 54applied environmental management consultants