Wambo Coal AEMR 2010-2011 - Peabody Energy

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2010-2011 AEMRTable 5.2 – Maintenance Activities on Previously Rehabilitated LandNature of TreatmentAdditional erosion controlworks (drains re-contouring, rockprotection)Soil Treatment (detail – fertiliser,lime, gypsum etc)Area Treated (ha)ReportPeriodNextPeriod5.6 NIL
2010-2011 AEMRTopsoil stripped ahead of mining will be applied tothe reshaped surface in an even layer generally notless than 100mm. Topsoil is placed using reardump haul trucks, or ejector trucks, and spread withdozers or graders. Once spread, the topsoil surfacewill be disc or chisel cultivated to create a texturedsurface which assists in trapping surface runoff,provides seed entrapments and createsmicroclimates favourable for seed germination.Where biosolids are used, cultivation also integratesthe topdressing material, which is a requirement ofthe EPA biosolids handling guidelines.Following surface preparation, vegetationestablishment across the rehabilitated area iscommenced. The aim of revegetation is to minimiseerosion and facilitate the development of the postminingland-use, be it agricultural production orhabitat/ecosystem enhancement.5.1.1.1 Rehabilitation PerformanceDuring the previous reporting period, an Open CutMOP was approved for the period of 2010-2016.The Open Cut MOP covers all aspects of the OpenCut operations including mining, rehabilitation andtailings management.The total hectares of disturbance and rehabilitationat the commencement of the new MOP period (July2010) was 998.8ha and 270.3ha, respectively.Existing rehabilitated areas include the Whynot,Low-wall and Ridge Dump areas, RL160 Dump,Charlies Hole, Wombat Hill, and Radio Shack in thecurrent Open Cut plus older rehabilitation fromprevious Open Cuts.During the previous reporting period, approximately84.4ha was rehabilitated within the Open Cut. Thisessentially accounted for all available dump areaready for reshaping and rehabilitation. Furtherrehabilitation planned for the 2010-2011 reportingperiod was reliant on the completion of overburdendumps, particularly in the Rug/ Ridge dump area.Due to delays in overburden removal from theHomestead Pit (which was being placed on the Rug/Ridge dump), no significant dump areas wereavailable for reshaping, and no open cutrehabilitation was completed during the period.The major rehabilitation maintenance project wasthe remediation on the North Wambo CreekDiversion (NWC Diversion). Remedial works werecompleted between April and June 2011 andincluded the repair of several failed creek banks,wash outs, rock armoured structures and vehiclecrossing points (as listed in Table 5.2 and detailedin Section 5.1.3).5.1.1.2 North East Tailings DamThe rehabilitation of the area known as the NorthEast Tailings Dam (NETD) has been established asa stand alone project within Peabody’s Wambo CoalOperation. Initial works commenced at the NETDduring the 2008/2009 AEMR reporting period. Thedam, which was discontinued as an active disposalsite in 2004 following Department Approval underSection 127, has been the subject of a number ofstudies to identify a safe and viable method ofcapping the relatively weak surface. WCPL havebeen working together with Australian TailingsConsultants to develop a capping strategy utilisingreinforced geogrid and controlled layers of coarsereject and overburden placed by specialist lowground pressure equipment.The scope of the NETD capping project is torehabilitate the 1220m long by 200m widedecommissioned tailings storage facility.WCPL have investigated and evaluated the cappingmethod utilising purpose built low ground pressureequipment, in conjunction with Geotextilereinforcement. Extensive design works have beenundertaken to develop the concept and provideengineered solutions to cap the weak tailingssurface. The design has considered the strength ofthe current crust (verified through Shear VaneTesting), the equipment to be used and the cappingmaterial to determine the reinforcement and theplacement method required to ensure the safety ofthis operation.The planned rehabilitation for next year is 49 ha.This work is planned for the Rug/ Ridge Dump.All disused tailings dams are rehabilitated with theexception of the North East Tailings Dam, which iscurrently being capped for rehabilitation (seeSection 5.1.1.1).Page 84
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Wambo Coal Pty LimitedAnnual Enviro
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2010-2011 AEMR2.8 Water Management.
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2010-2011 AEMR3.13.1.3 Aboriginal C
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2010-2011 AEMRList of FiguresFigure
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List of Appendices2010-2011 AEMRApp
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2010-2011 AEMR1.0 Introduction1.1 S
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2010-2011 AEMRTable 1.0 - Annual Re
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JERRYS PLAINS 15kmCOAL & ALLIEDRIVE
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2010-2011 AEMRTable 1.2 - WCPL Mini
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2010-2011 AEMR1.3.3 Environmental P
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5UNITED COLLIERYGOLDENGW16GW17WOMBA
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2010-2011 AEMR1.3.7 Subsidence Mana
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2010-2011 AEMR1.5 Review of 2009-20
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2010-2011 AEMRNo DoPI Issue DoPI Ac
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2010-2011 AEMROpen CutDuring the re
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2010-2011 AEMRTable 2.1 - Productio
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2010-2011 AEMRthe excavators and re
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2010-2011 AEMRFigure 2.3 - Coal Han
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2010-2011 AEMRhydrocarbon spill res
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2010-2011 AEMRTable 2.3 - Stored Wa
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2010-2011 AEMRTable 2.4 - WCPL Wast
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Page 50 and 51: 2010-2011 AEMRFigure 3.5 - 2010-201
Page 52 and 53: 2010-2011 AEMRIn accordance with Co
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Page 56 and 57: 2010-2011 AEMR3.2.2.3 Dust Depositi
Page 58 and 59: 2010-2011 AEMR3.3 Erosion & Sedimen
Page 60 and 61: 2010-2011 AEMRTrigger levels for EC
Page 62 and 63: 2010-2011 AEMRWollombi Brook record
Page 64 and 65: 2010-2011 AEMRNovember and December
Page 66 and 67: GW20GW16 GW17 GW19P1P11P3NORTH WAMB
Page 68 and 69: 2010-2011 AEMRUnited Collieries Pie
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Page 72 and 73: V10-A2NORTH WAMBOCREEK DIVERSIONV10
Page 74 and 75: 2010-2011 AEMR3.8 Weeds3.8.1 Enviro
Page 76 and 77: 2010-2011 AEMR1252010 - 2011 AEMR B
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Page 82 and 83: WARNINGNo part of this plan should
Page 84 and 85: 2010-2011 AEMRGain advice on most s
Page 86 and 87: 2010-2011 AEMRWith the commencement
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Page 90 and 91: 2010-2011 AEMRNo. of complaints1098
Page 92 and 93: 2010-2011 AEMRSingleton Public Scho
Page 96 and 97: 2010-2011 AEMRNETD Rehabilitation w
Page 98 and 99: 2010-2011 AEMRtransects had a simil
Page 100 and 101: Appendix 1Rail Haulage Records
Page 102 and 103: Wambo Coal Pty Ltd2010-2011 AEMRTon
Page 120 and 121: Appendix 2Environmental MonitoringP
Page 122 and 123: Annual Environmental Management Rep
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Page 130 and 131: 876543210Annual Environmental Manag
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Annual Environmental Management Rep
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Wambo Coal Pty Limited2010-2011 AEM
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FM8 - Cross Section - 21 June 20113
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FM6 - Cross Section 21 June 201143.
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FM4 - Cross Section 21 June 201110.
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FM2 - Cross Section 21 July 201143.
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HYDROGRAPHIC STATIONFM9 - SOUTH WAM
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HYDROGRAPHIC STATIONFM7 - Stony Cre
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HYDROGRAPHIC STATIONFM5 - South Wam
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HYDROGRAPHIC STATIONFM3 - Lower Wam
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HYDROGRAPHIC STATIONFM1 - Upper Wam
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10.09.08.07.06.05.0Annual Environme
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Wambo Coal MineAnnual Report_______
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EXECUTIVE SUMMARYGlobal Acoustics w
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Table of Contents1 INTRODUCTION....
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The survey purpose is to quantify a
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1.3 TerminologySome definitions of
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1.5 Wambo Coal Rail Spur Developmen
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2 METHODOLOGY2.1 Assessment Method2
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Table 3.2 L A1(1 minute) dB GENERAT
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Table 3.10L A1(1 minute) dB GENERAT
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Table 3.12 L A1(1 minute) dB GENERA
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4 SUMMARY OF COMPLIANCE4.1 SummaryN
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DayEvening/NightNightLand NumberL A
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A.2 Wambo Rail Spur Development Con
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compliance with the LAeq(15 minute)
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2010 Annual EcologicalMonitoring Re
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Executive SummaryRPS Australia East
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ContentsEXECUTIVE SUMMARYI1 INTRODU
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1 IntroductionRPS Australia East (R
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1.2 Qualifications and Licensing1.2
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Figure 2-1: Locations of Flora Moni
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• In 2007 all quadrats recorded i
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2.3 Discussion2.3.1 Species Diversi
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species specific herbicide), no con
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3 FaunaFive types of targeted surve
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Bird survey locations are not marke
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Figure 3-2: Threatened Species Loca
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Species Abundance in 2010The number
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• Observer bias. Likely variation
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Common Brushtail Possum was identif
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• Understorey characteristics;•
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Figure 4-2: Riparian Section Condit
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Sections• A relatively high numbe
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4.4 RecommendationsImplementation o
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Appendix 3Summary ofEnvironmental I
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Appendix 4Register of CommunityComp
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NoDate & TimeReceivedNature of Comp
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Appendix 5Rehabilitation Plan
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aemcWambo Coal Mine, Rail Loop and
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