ML18075A080
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| ML18075A080 | |
| Person / Time | |
|---|---|
| Issue date: | 03/16/2018 |
| From: | Richard Chang Division of Decommissioning, Uranium Recovery and Waste Programs |
| To: | |
| RChang DUWP | |
| Shared Package | |
| ML18075A077 | List: |
| References | |
| Download: ML18075A080 (20) | |
Text
SharpeArmyDepot,California Sites33/29(SHAD041)
March5,2018
2 1.InstallationLocation SharpeArmyDepot
3 1.SiteLocation Sites33/29(SHAD041)
- SHAD041islocatedinthesouthcentral portionoftheinstallation,adjacenttothe gateonLathropRoad.
- SHAD041isrelativelyflat,sparsely vegetated,andnobuildingsarepresent.
SHAD041
4 2.OperationalHistory SharpeArmyDepot
- SharpeArmyDepotwasestablishedin1941andisapproximately720acres
- Formostofitsexistence,theinstallationsprincipalmissionshavebeento store,ship,andpackagegeneralsuppliesandmaintainequipment.
- Earlymissionincludedrepairandreconditioningofbothheavyequipment vehicles,helicoptersandfixedwingedaircraft.
- SharpeArmyDepotwastransitionedtotheDefenseLogisticsAgencyin 1997andrenamedDefenseDistributionDepotSanJoaquin.
- In2013,theinstallationwastransferredbacktotheArmyanddesignatedto InstallationManagementCommand.ThePresidioofMontereywas designatedwithcaretakerauthorityuntilthepropertyisexcessed.
5 2.OperationalHistory Sites33/29(SHAD041)
- Duringthe1960s,solidwastefrompaintstrippingoperationswasregularly mixedintothesoilsandburnedatSHAD041(ESE,1994a).
- OtherwastesdisposedofatSHAD041burnpitsincludewood,paper,empty paint/solventcans,wastepaint/solvents,wasteoil,usedhydraulicfluidand anythingelsethatwouldburn.(ESE,1994a)
- Radiumpaint,dials,gaugesandothercommoditiesmayhavealsobeen disposedofattheSHAD041burnpits(Tidewater,2012).
- ContaminatedfuelwasnotreportedlydisposedofatSHAD041(ESE,1994a).
- SHAD041iscurrentlynolongeractivelyused.
- AtPresent:
- ArmyandAirForceExchangeServiceoperatesadistributioncenterin thesouthernportionoftheDepot.
- TheMarinesconductmilitaryreservetraininginthenorthwestern cornerofSharpeArmyDepot.
- TheCaliforniaArmyNationalGuardownsapproximately53acresinthe northernportionofSharpeArmyDept.
6 3.PreviousInvestigations Sites33/29(SHAD041)
- 1980- PreliminaryAssessment
- 1993/1994-RemedialInvestigation(ESE,1994a)- Metalsonly
- 22soilsamplesindicatedthepresenceofelevatedleadandchromiumconcentrations insoil(ESE,1994a);identificationofeightburialtrenchesandpits.
- 1996-OU2RecordofDecision(ROD)signed(ESE,1996);leadandtotal chromiumcleanuplevelsdefined.
- 1996-Sitedelineation(Radian,2000)
- Totalchromiumandleadwerelessthancleanuplevels.
- Resultsofleachabilitytestingdidnotexceedsolubleactionlevels.
- Nothreattoonsiteadultworkersortogroundwaterquality.
- 1996-OU2RODsigned(ESE,1996);removaloflead&chromiumcontaminatedsoil
- 1998 AdditionalsitecharacterizationconductedattherequestoftheCentral ValleyRegionalWaterQualityControlBoard(Radian,2000).
- Totalchromiumandtotalleadconcentrationswerelessthancleanuplevels.
- Nothreattoonsiteadultworkersorgroundwaterquality.Noactionrequired.
7 3.PreviousInvestigations Sites33/29(SHAD041)
- 2011-OU2RODAmendmentimplementedLUCsatSHAD041toprotect humanhealthandtheenvironment(URS,2011).
- 2012 Agammawalkoversurveywasperformedoverthemajorityof SHAD041.Levelsofradioactivityweredetectedabovebackground.
- Twosoilsamplelocationswereidentifiedatlocationswiththehighest directmeasurementsidentifiedduringthewalkoversurvey.
- Sampleswerecollectedfromtwointervals:06and618andwere sentforoffsiteanalysis.Totalradiumconcentrationswereabove background(Tidewater,2012).
- Asatemporarysafetymeasure,afenceandwarningsignswereinstalled aroundtheareaofhighestpotentialradiologicalconcern.
8 4.RegulatoryEngagement Sites33/29(SHAD041)
- SharpeArmyDepotwasplacedontheNationalPrioritiesListin1987and enteredintoafourpartyFederalFacilitiesAgreement(FFA)in1989.
- ThefourorganizationsontheFFAare:
- TheU.S.EnvironmentalProtectionAgencyRegion9,
- TheCaliforniaEnvironmentalProtectionAgency,includingthe DepartmentofToxicSubstancesControlandCentralValleyRegional WaterQualityControlBoard,and
- TheU.S.Army(SharpeArmyDepot/PresidioofMonterey)
- Theremedialprojectmanagementteammeets:
- Quarterlyinpersonatthesite
- Monthlyviaconferencecall
9 5.CurrentInvestigation Sites33/29(SHAD041)
- ThenextstepintheComprehensiveEnvironmentalResponse,Compensation, andLiabilityAct(CERCLA)processisaRemedialInvestigation/Feasibility Study(RI/FS).
- TheRI/FSwilldelineatesurfaceandsubsurfacecontamination(both radiologicalandnonradiological).
- FieldworkwascompletedOct2017.
- Forradium226,approximately21samplelocationswereselected; multiplesampleswerecollectedatdifferentdepths(fromsurfaceto14 feetbelowgroundsurface)ateachlocation.
- The DraftRI/FSReportisscheduledforcompletioninSpring2018.
10 6.References Sites33/29(SHAD041)
- ESE,1994a.RemedialInvestigation/FeasibilityStudyatSharpeSite,Soils FeasibilityStudyReport.Final.December.
- ESE,1994b.RemedialInvestigation/FeasibilityStudyatSharpeSite,Soils RiskAssessment,VolumeIandII.Final.December.
- ESE,1996.RecordofDecision,BasewideRemedy(OperableUnit2 Soils).
February.
- RadianInternational(Radian),2000.OperableUnit2NoFurtherAction RemedialReport.December.
- URS,2011.AmendmenttotheRecordofDecision,BasewideRemedy (OperableUnit2 Soils).June.
- Tidewater,2012.PhaseIHistoricalReview,ScopingSurvey,andRemedial RecommendationsReportfortheDLADefenseDepotJoaquinCenterSharpe SiteLathrop,CA.Final.February.