Extraction Plan - Peabody Energy

Extraction Plan – North Wambo Underground Mine Longwalls 7 and 8Table A1-5 (Continued)Requirements of the Approval of Application under Section 60 of the Heritage Act, 1977 (2012/S60/30)ConditionNumberCondition6 Mitigation measures should be carried out in accordance with the recommendations made in the followingdocuments:Mine Management Plan: Underground Mining in the Vicinity of Wambo Homestead Complex, Reportprepared for Wambo Coal Pty Ltd, by Godden Mackay Logan, July 2012Subsidence Data Review and Impact Assessment for Longwalls 7 and 8 at North Wambo UndergroundMine, Warkworth. DITTON GEOTECHNICAL SERVICES Report no. NWU-001/4 for Peabody EnergyAustralia Pty Ltd. Date: 23 May 2012.A copy of these specific recommendations is appended as a Schedule to this consent.The Applicant is required to obtain an additional peer review of the recommended monitoring measures byan appropriately qualified geotechnical consultant. That review is to be submitted within 3 months from dateof consent for review by the Heritage Council or its Delegate. Subject to the findings of the peer review,additional mitigation measures may need to be implemented / installed at the WHC to the satisfaction of theHeritage Council or its Delegate.7 A suitably qualified heritage consultant is to regularly monitor the current bracing and protective works, tosupervise any interim works during the mining activity as well as to supervise subsequent works to ensurethe site is protected in accordance with the above documents.8 The nominated heritage consultant shall: undertake on site heritage inductions, inspect removal works andthe addition of new elements to minimise impacts on significant fabric and views and manage theimplementation of the conditions of approval.9 The nominated heritage consultant shall submit a report to the Heritage Council or its Delegate within3 months of the completion of each stage of the works. The reports shall confirm that all the works havebeen completed in accordance with the approved documents and conditions of this approval. An additionaldetailed report also to be submitted to the Heritage Council or its Delegate is to be prepared 2 years afterthe conclusion of the longwall mining to assess whether any additional subsidence impacts have beensustained by the WHC due to any reason including, but not limited to, any collapse of overlying strata intothe goaf. If so, any identified impacts are to be made good through specific remedial work completed to thesatisfaction of the Heritage Council or its Delegate.Document Reference/CommentThe WHCMMP is a component of the HeritageManagement Plan (Appendix E).A peer review of the recommended monitoringmeasures was conducted by Mine SubsidenceEngineering Consultants (MSEC). Theserecommendations have been incorporated in theExtraction Plan.Refer to Section 5.2 of the WHCMMP.This will continue to be implemented by WCPL.Reporting will be conducted as required by thiscondition.EP/SMP LW7-8 Rev B December 2012 Page A1-24