Wambo Coal AEMR 2010-2011 - Peabody Energy

2010-2011 AEMR1.3.7 Subsidence Management PlanWCPL’s Underground operates under an approvedSubsidence Management Plan (SMP). The SMP forFirst Workings was approved by the DTIRIS inOctober 2005 with mining commencing inNovember 2005. The SMP for Second Workingswas lodged in March 2006 and was approved by theDTIRIS on the 11 December 2006. This SMPcovers underground mining activities until 1/11/2013which includes longwall panels 1 through to 6 (LW1-6). The SMP also includes the management ofenvironmental impacts associated with subsidence.Mine subsidence is discussed further in Section3.16.1.3.8 Emplacement Area ApprovalsTable 1.4 outlines previous emplacement approvalsissued under Section 126 Approvals forEmplacement Areas (Dams).A Section 127 Approval to DiscontinueEmplacement Areas was granted on the 8September 2004 for the North East Tailings Dam(NETD). In July 2009 WCPL submitted to theDTIRIS a Section 101 amendment, replacing theoriginal Section 127.1.3.9 EPBC ApprovalWCPL was granted approval (EPBC 2003/1138) inaccordance with Environment Protection andBiodiversity Conservation Act, 1999 (EPBC Act) forthe expansion of the mine on the 23 November2004. In accordance with the approval, WCPL haveprepared a Flora and Fauna Management Plan toaddress the conditions set out in EPBC 2003/1138.1.4 Mine ContactsTable 1.5 outlines the contact details for sitepersonnel responsible for mining, coal preparation,rehabilitation and environmental management atWCPL.These emplacement areas can be seen in Figure1.4. The Hunter Pit emplacement is the only currentoperational area. Rehabilitation of pastemplacement areas continued this reporting periodwith these activities outlined in Section 2.5.1.3.Table 1.4 – Emplacement Area ApprovalsDateGrantedArea Details Current StatusArea No. 1 Whynot (South) Area Rehabilitated.28/08/1991Area No. 2 Ridge Open Cut and Cut 11N areas Capping complete.Area No. 3Ridge Portal/Western Open CutRidge Portal rehabilitated.Western Cut temporaryrehabilitated.Area No. 4This comprised sub areas A and B as below:02/12/1993Area AA south east extension of the NorthEast Open CutNow called Charlies Hole. Thisarea was rehabilitated during thereporting periodArea B Original slurry drying pond area Rehabilitated.North Whynot Void - Rehabilitated.08/05/1995Area ‘C’ Open cut approval area number 8/8AUsed as mine water storage. Notplanned to be used for tailings.Hunter Pit Commenced filling in 29/03/2004 Current disposal area.23/01/2004 Area No. 1 Whynot (South) Area Rehabilitated.Page 13