Final environmental impact statement, Oro Cruz operation of the American Girl mining project PDF
Preview Final environmental impact statement, Oro Cruz operation of the American Girl mining project
BLMLIBRARY Environmental Impact Statement 88045154 ORO CRUZ OPERATION OFTHE AMERICAN GIRL MINING PROJECT PreparedBy: BureauofLandManagement ElCentroResourceArea ElCentro,California P.M.DeDycker&Associates,Inc. Lakewood, Colorado November1994 # £M # 4^^ iijm^^0 TAKEi UnitedStatesDepartmentoftheInterior aPmRiIeDrEicIaN' BUREAUOFLANDMANAGEMENT ElCeEnl1tC6re6o1n,tSCraooluiRtfehosr4ontuiharcS9et2r2Ae4er3te-a4561 ORG CINRREUPLZYREFPE3RO8TO0O:9 L^LI (CA-067.20) November 11,1994 Dear Reader: Wearepleased toprovideyouwiththisFinalEnvironmental Impact Statement (EIS) for the proposed Oro Cruz Operation ofthe American Girl Project for your review and comment. The Oro CruzOperation isaproposed surface and underground goldmining project on 191 acres ofpublic land inImperial County, California. The purpose ofthis FinalEISistoidentifyanddescribetheenvironmental consequences thatwouldresultfrom theproposed miningoperation. ThisFinalEIShasbeenprepared tomeettherequirements oftheNational Environmental PolicyActandtheCouncilonEnvironmental Quality'simplementing regulations (40CFR 1500). The document has been prepared byP.M.DeDycker and Associates, Inc.,an independent environmental consultant, under the direction of the Bureau of Land Management. A30-daypublicreviewperiod hasbeen established forthisdocument. Written comments pertaining tothisdocument ortheproposed OroCruzOperation willbeconsidered inthe decision making process. Written comments should be submitted to the BLM at the followingaddress nolater than December 12,1994. BureauofLandManagement ElCentroResourceArea 1661SouthFourthStreet ElCentro,CA 92243 Attention: ThomasZale The Final EIS willbe used by the BLM together with economic, social and technical information todecideonthediscretionary actionsbeingproposed byAmerican GirlMining JointVenture, theprojectapplicant. TheBLMwillprepare aRecord ofDecision forthe project afterevaluation ofanywritten comments. Sinceri foa ixft^/^^ G.Ben Kc ^0/t'tMi Area Manager C'nO^-P'O^^Q:f%'^A/)^^^ CoverSheet FinalEnvironmentalImpactStatement ForTheProposed OroCruzOperation ImperialCounty,California LeadAgency: U.S.Department oftheInterior BureauofLandManagement CaliforniaDesertDistrict ElCentroResourceArea ElCentro,California ProposedAction: Excavationoftwoopenpitsandanundergroundmine,awasterockdumpandthree smallerdevelopmentdumps,ahaulroadtoexistingprocessingfacilities,andasource ofaggregate. Comments orrequests forinformation shouldbedirected totheBureau ofLand Management asfollows: BureauofLandManagement ElCentroResourceArea 1661SouthFourthStreet EiCentro,CA 92243 (619)353-1060 Attention:ThomasZale Designation: FinalEnvironmentalImpactStatement (EIS) Abstract: Inaccordance withthe National Environmental PolicyAct,the Bureau ofLand Management (BLM)publishedaNoticeofIntenttoprepareanEISfortheProposed Oro CruzOperation ofthe American GirlProject onJune 5,1992. APlanof Operation fortheProposed Oro CruzOperation wasfirstsubmittedl toBLMby AmericanGirlMiningJointVenture(AGMJV) inMarch1992andwaslaterrevised inMay1993. Followingscoping,BLMprepared aDraftEISforpublicreviewand comment. ANoticeofAvailabilityfortheDraftEISwaspublishedintheFederal RegisteronMay2,1994. Comments ontheDraftEISwereacceptedthroughJune 28,1994. Commentsreceivedafterthatdatewerealsoconsidered. Theproposedactionisasurfaceandimdergroundminingprojectonimpatentedlode andplacerclaimsonpubliclandsinImperialCounty,California. About2.5million tonsoforeand8.5milliontonsofwasterockwouldbeminedfromtwoopenpits,the CrossPitanddieQueenPit,duringanestimated twoyearperiod. TheQueenPit wouldbebackfilleduponcompletionofmining. Undergroimdminingvrauldbeginin theCrossPitandbeconductedconcurrentlywithsurfacemining. One-halfmillion tonsoforeand75,000tonsofwasterockwouldbeproduced duringathreeyear period. Oreproducedbybothsurfaceandundergroundminingwouldbetransported 2.5milesbyhaultruckstoexistingmillandheapleachfacilitiesinAmericanGirl Canyonviaaproposedhaulroad. WasterockwouldbedisposedofintheQueenPit, andononelargeandthreesmallerwasterockdumps. Aggregateforuseinstabilizing undergroundmineworkingswouldbehauledfromaquarryneartheexistingAmerican GirlCanyonfacilitiestotheCrossPitalongthesamehaulroad. Surfacedisturbance resultingfromtheproposedactionwouldtotal191acres. Alternativestotheproposedactioninclude: • NoAction • CompleteBackfillingofWasteRock • CyanideSolutionApplicationViaDripEmitters ® FloatingCoveronPondsContainingCyanideSolution Aodfdsiotmioenaprlojcehcatngfaecsiliitniemsiannidngcoamnpdonpernotcseswsienrgeocpoenrsaitdieornesd,abnudteclhiamnigneasteidnftrheomlfoucratthieorn analysisintheFinalEISonthebasisoftechnicalandeconomicfeasibility,and/or environmentalconsequences. Theenvironmentalconsequencesoftheproposedactionandalternativesareaddressed intheFinalEISintermsofthefollowingelementsofthehumanenvironment: » ClimateandAirQiiality Recreation © Geology VisualResources Hydrology Sound • Soils CulturalResources e Vegetation Transportation o Wildlife Socioeconomics • LandUse IssuesidentifiedduringscopingandcommentsontheDraftEISareaddressedinthe Final EIS pertained to air quality,vi'ildlife,cultural resources, visualresources, wrielcdrleiafteiownoaluludsereamnadinpusbilgincifsiacfaentty,ancdyanuinadveomiadanbalgee,meenvte,naafntderrmeictliagmaattiioonn.. Impactsto PublicReviews ThisFinalEISisbeingdistributed fora30-daypublicreviewperiod. Thisreview periodwillendonDecember 12,1994. TheFinalEIS willbeusedbytheBLM togetherwitheconomic,socialandtechnicalinformationtodecideonthediscretionary atoctitohnesBbeLiMngarteqtuheesteadbobveyAaGddMrJesVs.onWroirttebnefocroemmDeenctesmboenrthe12,Fin1a9l94E,IwSilslubamlisottebde considered inthe decisionmakingprocess. TheBLMwillprepare aRecord of Decisionfortheprojectafterevaluationofwrittencomments. Thisdocumenthasbeenapprovedforpublicreview. Henri R.Bisson DistrictManager California Desert District Final Environmental Impact Statement ORO CRUZ OPERATION OFTHE AMERICAN GIRL MINING PROJECT PreparedBy: BureauofLandManagement ElCentreResourceArea 1661 SouthFourth Street ElCentro, California 92243 P.M. DeDycker&Associates, Inc. 12596 WestBayaudAve. Suite380 Lakewood, Colorado 80228 November 1994
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