ML17334B472

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DC Cook Nuclear Plant,Units 1 & 2 Annual Environ Operating Rept,920101-1231. W/930421 Ltr
ML17334B472
Person / Time
Site: Cook  American Electric Power icon.png
Issue date: 12/31/1992
From: FITZPATRICK E
INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To: MURLEY T E
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
AEP:NRC:0806M, AEP:NRC:806M, NUDOCS 9304290174
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A.CCELERATEDDOCUlVIEYTDISTrBUTIONSYSTEMREGULA'IlINFORMATIONDISTRIBUTIOh.YSTEM(RIDE)ACCESSIONNBR:9304290174DOC.DATE:kQh~"NOTARIZED:NODOCKETNFACIL:50-315DonaldC.CookNuclearPowerPlant,Unit1,IndianaM0500031550-316DonaldC.CookNuclearPowerPlant,Unit2,IndianaM05000316AUTH.NAMEAUTHORAFFILIATIONFITZPATRICK,E.IndianaMichiganPowerCo.(formerlyIndianaaMichiganEleRECIP.NAMERECIPIENTAFFILIATIONMURLEY,T.E.DocumentControlBranch(DocumentControlDesk)I

SUBJECT:

"DCCookNuclearPlant'ts1&2AnnualEnvironOperatingRept,920101-1231."W930421ltr.DISTRIBUTIONCODE:IE25DCOPIESRECEIVED:LTR4ENCLSIZE:TITLE:EnvironmentalMonitoringRept(perTechMpecs)NOTES:DRECIPIENTIDCODE/NAMEPD3-1LADEANFWINTERNAL:NRR/DRSS/PRPB11RGN3DRSS/RPBEXTERNAL:EGGGSIMPSON,FCOPIESLTTRENCL3311221122RECIPIENTIDCODE/NAMEPD3-1PDREGFILE01RGN3FILE02NRCPDRCOPIESLTTRENCL11111111DSNOTETOALL"RIDS"RECIPIENTS:PLEASEHELPUSTOREDUCEWASTE!CONTACTTI.IEDOCUMEN'ICONTROLDISK,ROOMPl-37(EXT.504-2065)TOELIMINATEYOURNAMEFROMDISTRIBUTIONLISTSFORDOCUMENTSYOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:LTTR13ENCL13 IndianaMichiganPowerCompanyP.O.Box16631Coiumbus,OH43216NAEP:NRC:0806MDonaldC.CookNuclearPlantUnitNos.1and2DocketNos.50-315and50-316LicenseNos.DPR-58andDPR-74ANNUALENVIRONMENTALOPERATINGREPORT-1992U.S.NuclearRegulatoryCommissionDocumentControlDeskWashington,D.C.20555Attn:T.E.MurleyApril21,1993

DearDr.Murley:

AttachedistheDonaldC,CookNuclearPlantAnnualEnvironmentalOperatingReportfortheyear1992.ThisreportwaspreparedinaccordancewithSection5.4.1ofAppendixB,PartIIandSection6.9.1.6ofAppendixATechnicalSpecificationsoftheDonaldC.CookNuclearPlant.Sincerely,ZE~p~VicePresidentedgAttachmentcc:A.A.Blind-BridgmanNFEMSectionChiefJ.R.PadgettG.CharnoffA.B.Davis-RegionIIIAdministrator(2encl.)NRCResidentInspector-Bridgman9Som901Ve'9aliil'DRADOCK05000Si5R;-,'DR~pP J,~I AnnualEnvironmentalOperatingReportJanuary0,throughDecember34,1992IndianaMichiganPowerCompanyBridgman,MichiganDocketNos.50-315&50-316LicenseNos.DPR-58&DPR-74

TABLEOF'ONTENTS~PaeIntroductionChangestotheEnvironmentalTechnicalSpecificationsIII.Non-RadiologicalEnvironmentalOperatingReportA.lA.2A.3A.4B.C.PlantDesignandOperationNon-RoutineReportsEnvironmentalProtectionPlanPotentiallySignificantUnreviewedEnvironmentalIssuesEnvironmentalMonitoring-HerbicideApplicationsMacrofoulerMonitoringandTreatmentIV.Solid,Liquid,andGaseousRadioactiveWasteTreatmentSystemsV.RadiologicalEnvironmentalMonitoringProgram(REMP)3A.lA.2B.ChangestotheREMPRadiologicalImpactofDonaldC.CookNuclearPlantOperationsLandUseCensusandWellReportVI.Conclusion LISTOFAPPENDICESappendixTitleIVNon-RoutineReport-1992EnvironmentalEvaluation-1992HerbicideApplicationReport-1992MacrofoulerMonitoringProgram-1992AnnualReport:RadiologicalEnvironmentalMonitoringProgram-1992RadiologicalEnvironmentalMonitoringProgramSummary-1992DataTablesAnalyticalProceduresSynopsisSummaryofEPAInterlaboratoryComparisonsREMPSamplingandAnalyticalExceptionsLandUseSurveysSummaryofthePreoperationalRadiologicalMonitoringProgramHSummaryoftheREMPQualityControlProgramSummaryoftheSpikeandBlankSampleProgramTLDQualityControlProgram

I.INTRODUCTIONTechnicalSpecificationSection6.9.1.6andAppendixB,PartII,Section5.4.1requirethatanannualreportbesubmittedtotheNuclearRegulatoryCommissionwhichdetailstheresultsandfindingsofongoingenvironmentalradiologicalandnon-radiologicalsurveillanceprograms.ThisreportservestofulfilltheserequirementsandrepresentstheAnnualEnvironmentalOperatingReportforUnits1and2oftheDonaldC.CookNuclearPlantfortheoperatingperiodfromJanuary1,1992throughDecember31,1992.During1992,basedonthemonthlyoperatingreportsforUnit1andUnit2,theannualgrosselectricalgeneration,averageunitservicefactors,andcapacityfactorswere:arameterU~nitUnit2GrossElectricalGeneration(MwH)UnitServiceFactor(8)UnitCapacityFactor-MDC*Net(0)5,197,60064.855.71,485,88019.514.9*MaximumDependableCapacity~~II.CHANGESTOTHEENVIRONMENTALTECHNICALSPECFICATIONSTherewerenoenvironmentalTechnicalSpecificationchangesin1992.III.ON-RADIOLOGICALENVIROENTL0IGEPORTA.lPlantDesignandOperationDuring1992,noinstancesofnoncompliancewiththeEnvironmentalProtectionPlanoccurred,norwerethereanychangesinstationdesign,operations,tests,orexperimentswhichinvolvedapotentiallysignificantunreviewedenvironmentalissue.Thereweresevenenvironmentalevaluationsduringthereportingperiod.CopiesoftheseevaluationsarelocatedinAppendixIIofthisreport.Theevaluationsdeterminedthattherewerenounreviewedenvironmentalquestions.A.2Non-RoutineReportsAsummaryofthe1992non-routineeventsislocatedinAppendixIofthisreport.Nolong-term,adverseenvironmentaleffectswerenoted.

A.3EnvironmentalProtectionPlanTherewerenoinstancesofEnvironmentalProtectionPlannoncompliancein1992.A.4PotentiallySignificantUnreviewedEnvironmentalIssuesTherewerenochangesinstationdesign,operations,testsorexperimentswhichinvolvedapotentiallysignificantunreviewedenvironmentalissue.Thereweresevenenvironmentalevaluationsduringthereportingperiod.CopiesoftheseevaluationsarelocatedinAppendixIIofthisreport.Theevaluationsdeterminedthattherewerenounreviewedenvironmentalquestions.B.EnvironmentalMonitoring-HerbicideApplicationTechnicalSpecificationsAppendixB,Subsection5,4.1,statesthattheAnnualEnvironmentalOperatingReportshallinclude:summariesandanalysesoftheresultsoftheenvironmentalprotectionactivitiesrequiredbySubsection4.2ofthisEnvironmentalProtectionPlanforthereportperiod,includingacomparisonwithpreoperationalstudies,operationalcontrols(asappropriate),andpreviousnon-radiologicalenvironmentalmonitoringreports,andanassessmentoftheobservedimpactsoftheplantoperationontheenvironment.HerbicideapplicationsaretheactivitiesmonitoredinaccordancewithSubsection4.2.Therewerenopreoperationalherbicidestudiestowhichcomparisonscouldbemade.Herbicideapplicationsarecontrolledbyplantprocedure12THP6020.ENV.104.Asummaryofthe1992herbicideapplicationsiscontainedinAppendixIIIofthisreport.Basedonobservations,therewerenonegativeimpactsorevidenceoftrendstowardirreversiblechangetotheenvironmentasaresultoftheherbicideapplications.Basedonourreviewofapplicationrecordsandfieldobservations,theapplicationsconformedwithEPAandStaterequirementsfortheapproveduseofherbicides.

C.'acrofoulerMonitoringandTreatmentMacrofoulerstudiesandactivitiesduring1992arediscussedinAppendixIVofthisreport.IV.SOLIDLIUIDANDGASEOUSRADIOACTIVEWASTETREATMENTSYSTEMSTherewerenochangesinthesolid,liquid,orgaseousradioactivewastetreatmentsystemsduring1992.V.DIOLOGICALENVIRONMENTALMONITORINGPROGRAMREMPTheRadiologicalEnvironmentalMonitoringProgramannualreportislocatedinAppendixVofthisreport.Theobjectivesoftheoperationalradiologicalenvironmentalmonitoringprogramare:1.Identifyandmeasureradiationandradioactivityintheplantenvironsforthecalculationofpotentialdosetothepopulation.2.Verifytheeffectivenessofin-plantmeasuresusedforcontrollingthereleaseofradioactivematerial.3.Providereasonableassurancethatthepredicteddoses,basedonradiologicaleffluentdata,havenotbeensubstantiallyunderestimatedandareconsistentwithapplicablestandards.4.ComplywithregulatoryrequirementsandStationTechnicalSpecificationsandproviderecordstodocumentcompliance.A.lChangestotheREMPTherewerenochangestotheREMPduring1992.A.2RadiologicalImpactofDonaldC.CookNuclearPlantOperationsThisreportsummarizesthecollectionandanalysisofvariousenvironmentalsamplemediain1992fortheRadiologicalEnvironmentalMonitoringProgramfortheDonaldC.CookNuclearPlant.AnalysesofsamplemediasuggestthattherewerenodiscernableimpactsassociatedwithoperationoftheDonaldC.CookNuclearPlantontheenvironment.Theanalysesofairparticulatefilters,charcoalcartridges,directradiationbythermoluminescentdosimeters,samplesof

~~fi'sh,water,andsedimentfromLakeMichigan,drinkingwater,milk,andfoodproducts,eitherdidnotdetectanyradioactivityormeasuredonlynaturallyoccurringradionuclidesatnormalbackgroundlevels.B.LandUseCensusandWellReportTheLandUseCensusisperformedtoensurethatsignificantchangesintheimmediatevicinityoftheDonaldC.CookNuclearPlantareidentified.AnyidentifiedchangesareevaluatedtodeterminewhetheramodificationmustbemadetotheREMPorotherrelatedprograms.Nosuchchangeswereidentifiedduringthe1992LandUseCensus.AfurtherdiscussionoftheLandUseCensuscanbefoundinAppendixV(F)ofthisreport.VI.CONCLUSIONBasedupontheresultsoftheradiologicalenvironmentalmonitoringprogramandtheradioactiveeffluentreleasereportsforthe1992reportingyear,itcanbeconcludedthattherewerenoadverseaffectstotheenvironmentortothegeneralpublicduetotheoperationoftheDonaldC.CookNuclearPlant.

APPENDIXINON-ROUTINEREPORTS1992

1992Non-RoutineEventsFebruary,1992-TheNPDESPermitlimitof30mg/lforthemonthlyaverageTotalSuspendedSolids(TSS)onOutfallOOC(PlantHeatingBoiler)wasexceeded.Theanalysesindicatedanaveragevalueof41.4mg/l.FirstQuarter,1992-Aninternalreviewofourrecordsrevealedthatthefirstquarter1992samplesforStormwaterOutfall001Shadnotbeencollected.June6,1992-Duringintermittentchlorinationoftheplantservicewatersystems,ourNPDESPermitlimitof0.30mg/l,foragrabsampleofTotalResidualChlorine(TRC)wasexceeded.TheanalysisindicatedaTRCconcentrationof0.76mg/l.June24,1992-Duringintermittentchlorinationoftheplantservicewatersystems,ourNPDESPermitlimitof0.30mg/l,foragrabsampleofTotalResidualChlorine(TRC)wasexceeded.TheanalysisindicatedaTRCconcentrationof0.33mg/l.June30,~1992-Aminor,inadvertentdischargeofthemollusicideClam-trolCT-1mayhaveoccurredintosurfacewaters.~~~~~~~September16,1992-NoticeableturbiditywasvisualizedinOutfalls001and002duringaforebayClam-troltreatment,.resultingfromtheinitialdosageofbentoniteclaywhichisusedasaClam-troldetoxicant.

IndianaMichiganPowerCompanyCookNuclearPlantOneCookPlaceBridriman.Ml491066164655901INDIANAMICHIGANPOWERMichaelD.MooreDeputyDirectorDepartmentofNaturalResourcesStevensT.MasonBuildingP.O.Box30028Lansing,MI48909October30,1992

DearMr.Moore:

Re:SummaryofScaupEventsPeryourrequest,thefollowingisasummaryofthesequenceofeventswhichledtotheunfortunatelossofapproximately400lesserandgreaterscaupslastwinterattheCookNuclearPlant.TheCookPlantislocatedinBridgman,MichiganonthesoutheasternshoresofLakeMichigan.Weoperatetwo1100megawattWestinghousePressurizedWaterReactors.Coolingwaterissuppliedviathreesixteenfootdiametercorrugatedsteelpipelineslocatedapproximately2250feetoffshore.Threeoctagonalintakecribsapproximately75feetindiameterwithvelocitycaps(seeAttachments¹1,¹2,and¹3)takesuctioninapproximately22feetofwater.Designflowatthebarracksonthestructuresisonefootpersecondwithallthreepipelinesinuseandallsevencirculatingwaterpumpsinoperation.Totalflowthroughtheonce-throughmaincondensercoolingwatersystemis1.6milliongallonsperminute.Thesurroundinglakebottomconsistsofmostlysand.Alimestonerip-rapstabilizationzonesurroundstheintakecribs,dischargestructuresandpipelinepathsinfront,oftheplant.Thelimestoneandintakecribshaveformedaperfectsubstratefor,zebramusselstoattachandprovideanabundantfoodsourceforlesserandgreaterscaups.Allsevencirculatingwaterpumpswererunning,whenthefirstscaupswerediscoveredintheplant'sscreenhouseforebay.Theplarttwasoperatinginthede-icemodeinwhichthecenterintakepipelinewasalignedasadischargepipeline.Thisalignmentnecessaryforrepairworkscheduledforthecenterintakevalve.

MichaelD.MooreOctober30,1992Page2InitialScauSihtinsOnDecember5,1991,plantpersonnelnotedthatovera2to3dayperiod,approximately90to100deadscaupshadcollectedinthescreenhousetrashbasketsafterthescreenwashpumpswererun.Thebirdswerenotmangledordisfiguredinanyway.Plantpersonnelinvestigatingtheincidentdissectedoneofthescaupsinanattempttodeterminethecauseofdeath.Zebramussels(Dreissenaproventriculusoftheanimal.Thegizzardwasfoundtocontainanumberofzebramusselshellfragments.Deathappearedtohaveoccurredbydrowning.Itwashypothesizedthatthescaupswerefeedingontheabundantzebramussel'populationestablishedonthecirculatingwaterintakecribsandsurroundingriprap.TheMDNRPlainwellOfficewasnotifiedbyphoneoftheincident.CookPlantZebraMusselHistorZebramusselswerefirstdetectedattheplantonJuly18,1990intheplantscreenhouseforebay.Initialdensityestimatesrangedfrom0.25-0.67individualspersquaremeterintheplantscreenhouseforebayandintakecribs.Inlatefallof1990,zebramusseldensitieshadincreasedtoapproximately100individualspersquaremeter.NomigratoryduckswereseenaroundtheareaoftheintakecribsonLakeMichiganorfoundinthescreenhousetrashbasketsin1990.Inthespringof1991,again,nomigratoryduckswereseenorfoundintheplant.Duringthesummerof1991,southernLakeMichiganunderwentapopulationexplosionofzebramussel's.Thiswasconfirmedbybio-monitoringstudiesperformedattheplant.Bythefallof1991,zebramusseldensitiesattheintakecribshadincreasedtoapproximately180,000to200,000persquaremeter.ThePlantutilizesanumberoftechniquestocontrolzebramusselinfestation.Presentlytheseincludetheuseofintermittentchlorinationandtargetedmolluscicidetreatmentstotheserviceandcirculatingwatersystems.Diversarecontractedtophysicallyremovezebramusselsusingwaterblastersandscrapersfromareaswherechemicaltreatmentwasimpossibleornoteffectivewithwaterblasters.

MichaelD.MooreOctober30,1992Page3InitialCorrectiveActionstoDeterScausOnDecember6,1991,approximately250scaupswereseendivingneartheintakecribs.Plantbiologistsattemptedtoscarethebirdsawayusingasmallinflatableboat.Thescaupslefttheimmediatearea,onlytoreturnsoonaftertheboat.hadleftthewater.Blankswerefiredfromshoreinanattempttofrightenthebirdsaway,buttheblastsweredrownedoutduetothedistancetothebirds,andthesoundofthesurf.OnDecember7,1991,plantbiologistsattemptedtoscarethescaups(approximately250)again,utilizingshotgunblanks,firedfromthesmallinflatableboatlocatedattheintakecribsthemselves.Again,thebirdsreturnedaftertheboatleftthewater.AttherequestofMikeBaileyoftheMDNRPlainwellOffice,.86scaupsthathadbeencollectedinthetrashbasketswerestoredintheplantfreezersforfurtherstudybyU.S.FishandWildlifebiologists.ByDecember9,1991,thenumberofscaupsdiscoveredinthescreenhousetrashbasketshadreachedapproximately280.Plantengineersdeterminedthatacirculatingwaterpumpcouldbeturnedoffinanattempttodecreasethewatervelocityattheintakecribs,withoutreducingreactorpower.Itwashopedthatthiswouldpreventthescaupsfrombeingsuckedintotheplantforebay.Onlytenscaupswerefoundintheplantsscreenhousetrashbasketsduringthenextfourdays.Thisreducednumbercouldhavebeenattributedtothefactthatthemajorityofthescaupshadlefttheimmediateareaonthe9th.Asopposedtoover"200scaupsbeingseenonDecember8,only5-12scaupswereseenthenextfourdaysneartheintakecribs.Hence,wecouldnotconcludewhetheroperatingatareducedflowusingsixvs.sevencirculatingwaterpumpshadmadeapositivedifference.NumerousbirdscaretacticswereemployedbyplantbiologistsinaccordancewithpermissiongivenbyMikeBaileyoftheMDNR.PlantbiologistsdeployedBirdScareEyes(balloonspaintedwithpredatoryeyesandreflectiveribbons).Theballoonswereattachedtothebuoysmarkingtheintakecriblocations.Raftswerealsodeployedandattachedtothebuoystosimulateboats.Thesedevicesseemedtofrightenthescaupsfromtheintakecribareatemporarily,buthighwinds,coldwatertemperature,andwaveactionsoonendedallattemptstokeepanytypeoffloatingscaredeviceoutattheintakesforanyextendedperiodoftime.

MichaelD.MooreOctober30,1992Page4Furthermore,thebuildupofshoreicemadefurtherdeploymentsofthesedevicestoohazardousforworkcrews.AutilityinWisconsinthathadasimilarexperiencecormorantsattheirsurfacelevelintakestructuresnotedthatvisualtacticsaretemporaryatbest.Thebirdsbecomeaccustomedtotheobjectsandsoonignoredthem.OnDecember13,1992,theplantwentoffde-icemodetofurtherreducethevelocityattheintakecrib.Coolingwasterwasthereforedrawnfromthreepipelinesinsteadoftwo.-FromaboutDecember15,1991,totheendofFebruary,scauppopulationsseenraftingneartheplant'sintakecribsrangedfrom1toover200.Fromthe15thofDecemberuntilJanuary21,1992,onlytwoscaupswerediscoveredinthetrashbasketsandnoadditionalduckshavebeencollectedtodate(seeAttachments¹4and¹5).Znadditiontothescaups,fourbuffleheadswereseenclosetoshoredivinginapproximately10to15feetofwater.Plantpersonnelmadedailyobservationsofmigratorybirdsraftingnearthe.intakecribarea,inanattempttobetterlearnthebirdshabitstohelpinmitigatingtheproblem.OnJanuary19,1992,theplantwasreturnedtothede-icemodeofoperation,takingsuctionfromtwopipelinesanddischargingthroughthecenterintake.Thisbecamenecessarytopreventfrazzleicefromblockingtheintakecribflowpathway.OnFebruary4,1992inanattempttopermanentlyrelocatethescaups,ahelicopterwascharteredtoherdtheducks,andforcethemtoanotherlessdangerousfeedingground.Unfortunately,thescaupsdidnotcooperate.However,wediddiscoverthatthebirdsfoundanothersitewheretheywouldcongregate.OnemilenorthoftheplantonLakeMichiganinfrontoftheGrandMereLakes,over100scaupswereseenonseveraldaysraftinganddivinginaspecificarea.Weassumedthattheremustbeanothercolonyofzebramusselsinthisareathatthescaupsfeedon.Weattemptedtodrivethescaupstowardthisareawiththehelicopterwithlittlesuccess.Thebirdsappeartoflybackandforthbetweenthetwoareatofeed.FromFebruary21,1992untilMarch11,noscaupswereseenneartheintakecribarea.~OnMarch12,1992,approximately30scaupswereseenraftingattheintakecribs.

MichaelD.MooreOctober30,1992Page5OnApril1,1992,aplantbiologistnotedover500scaups,mergansersandafewloonsraftingintheareaneartheintakecribs.NoscaupshadbeenseensinceMarch12,andnonehadbeenfoundinthescreenhousetrashbasketssinceJanuary21.ThewaterfowlwereseenagainonApril2,10and13inapproximatelythesamenumbers.Thefishingtrafficneartheintakesbecameheavyinmid-April,andthescaupswerenotseenagainuntilOctober13,1992.Plantbiologistsbelievethescaupsarefeedingontheintakestructuresthemselves,andmayinfactswimrightintothetunnelsinsearchofzebramussels.PlantbiologistsdoveontheintakestructuresinJanuarytoascertainwhetherthescaupsweremakinganyimpactonthezebramusselpopulation,orifanygrazingpatchescouldbeseenontheactualcribsthemselves.Unfortunatelynodefinitiveconclusionscouldbemade.Theautopsyresultsindicatedahighpercentageofyearlingscaups.Theymaybecomedisoriented,andsimplycannotfindtheirwayoutagainstthecurrent.Wehadhopedbyvaryingthenumberofoperatingcirculatingwaterpumpsand/orthenumberofpipelinesbeingutilizedassuctions,wecoulddeterminewhetherthescaups.weresuckedinorwhethertheywouldjustswiminandcouldnotfindtheirwayout.Aconclusioncouldnotbereachedbecausethenumberofbirdsfeedingintheareaatthetimeoftheplantmodificationswasrelativelysmallandhadlittleeffect.FuturePreventativeactionsTopreventfurtherlossesofmigratingwaterfowl,theintakestructureswillbecleanedofzebramusselspriortothefallmigrationof1992.AccordingtoU.S.FishandWildlifebiologiststhescaupmigrationshouldbeginaroundNovember.Whenpossible,CookNuclearPlantwillcontinuetoconfiguretheplant'scirculatingwatersysteminamannertominimizeflowattheintakestructuresduringperiodsofduckmigration.Diverswillcleanthestructureaslateintheseasonaspossible(weatherpermitting),toremoveallsettledzebramusselsincludingthe1992newlysettledDreissenapostveligers.Webelievebyremovingthefoodsourceneartheareawheretheducksmaybecomedisorientedorswimtoclosetotheplantsuctions,theduckswillnotbecomeentrappedinthetunnels.Thebirdswillstillbeabletofeedonthemusselsonthesurroundinghalf-mileofrip-rapthatiscoveredwithzebramussels,buttheywillbeawayfromthedanger MichaelD.MooreOctober30,1992Page6associatedwiththeintakecribs.Buoyswithpredatorowlshavealsobeen.deployed.ThePlanthasalsopurchasednumerousaviaryscaredevicestobeusediftheneedarisestofrightenthebirdsawayfromtheintakecribs.Theseincludeamulti-detonationLPgascannon;a6mmhandheldlauncherwithscreamingsirens,birdbangers;shot-tells(birdscaringblanksforshotguns);predator-eyeballoons;andaAVA-2ScareAlarm.Toemploymanyofthesedevices,goodlakeconditionsarerequiredtoworkoutneartheintakecribs.Whenthewaveheightsexceedtwofeet,orwhenshoreiceisformed,theconditionsbecometoohazardoustoperformwork.However,theuseofscaredevicesmaynotbecomenecessarybecauseoftheremovalofthefoodsource(zebramussels)fromtheintakecribs.Insummary,weareconfidentthatthemeasuresbeingtakentoremovezebramusselsfromtheintakestructureswillgreatlyminimizeanyfutureducklosses.Wewillcontinuetomonitorthepopulationsraftingatourintakes.Sincerely,A.A.BlindPlantManager/jsc:M.Bailey,MDNR'lainwell MichaelD.MooreOctober30,1992Page7bc:E.E.FitzpatrickJ.E.RutkowskiK.R.BakerL.S.GibsonJ.T.WojcikD.M.FitzgeraldJ.P.CarlsonD.L.BakerA.J.AhernA.E.Gaulke l~~~>e~~

Atta'chment2COLLAPSIBLERACKVIEW.TWO(2)PERSIDEOFOCTAGON-16TOTALRACK.7"X7"OPENING.

IJIItIiIVI~JIve*g~7tV)

Attachment40BOFDZD12-02-9112-0391'2-04-9112-05-9112-06-91AN12-06-91PM12-07-9I.AM12-07-91PM12-08-91AM1208-91PH12-09-.91AM12-09-91PM12-I.0-91AM12-I.0-91PM12-11-91AM12-11-91PH12-12-91AM12-12-91PM12-3.3-91AM12-1391PM12-14-91AM12-I.491%K12-1591AM12-1591PM12-1691AM12-3.691PH12-1791AM12-1791PH12-I.8-9112-199112-219112-22-91'12-239112-279112-309101029201-209201-21-9201-22-9201-23-9201-25-9201-27-9201-28-9201-29-9201309202-03-9202-04-9202-05-9202-06-9202-12-923030303593,8665122521126000010.00100000000000001000000000000>250>250>250>250>200>100>200<504125102304200>6053>30570>60>73>110>80>80>1002>1203>50>50>30>202>3QQ**>15>20>40>40>2QQ***>45>70>100 Attachment500000000002-3.3-92.02-3.7-9202-19-9202-21-9203-12-9204-01-9204-02-9204-3.0-9204-13-9210-19-92.otalnumberofscauyskilled385>125'3O>500>500>400>40050NoLakeobservationsmade>*ObservationsviahelicopteroverplantandGrandMerearea+**ObservationsatGrandMerearea APPENDIXIIENVIRONMENTALEVALUATIONREPORTS1992

Thereweresevenenvironmentalevaluationsduringthereportingperiod.Thefollowingdocumentsarecopiesoftheseevaluations.Theseenvironmentalevaluationsdeterminedthattherewerenounreviewedenvironmentalquestions.

ANKRICANKLECTRlCPOll%RDateFebruary5,1992SubjectDonaldC.CookNuclearPlantEnvironmentalEvaluationPM-837FromS.L.Colvis'S~ToJ.J.Satin/PM-837DC-RS-7915Asrequested,IhavereviewedPM-837foritsenvironmentalimpact.Afterdiscussionswithplantpersonnel,Ihavedeterminedthatthisdesignchangedoes~orequireanenvironmentalevaluation.ThismemoistoserveasdocumentationofthisdecisionasrequiredbyRadiologicalSupportSectionProcedureRS-34.Themodificationonlyallowsfortheinstallationofthediffusers.Itdoesnotincludetheactualin]ectionofanychemical(molluscide,etc.)aspartofitsscope.Itisassumedthatthiswillbedealtwithinthedevelopmentoftheprocedureforthechemicaladdition.Atthattime,anenvironmentalevaluationwillbepreparedbythissectiontodeterminetheenvironmentalimpactduetothechosenchemical.Ifyouhaveanyquestionsregardingthisdetermination,pleasecontactDane.Approvedby'RadiologicalSupportSectionC;D.M.Fitzgerald/J.CarlsonR.MClaes'.R.Satyan-Sharma APR14'9318:33DCCOOKP.2FebruaryLa,le926U>J<<XcaMachineGlycolHeaderModification,12-%.-267FromR.M.ClaasToJ,E,TraderFur<<uanttoRadfologfcslSupportSectionProcedur>>RS-34,thismemo<<hallservetodocumentthatanEnvironmenta1Evaluationi<<notrequiredtob>>performedfortheproposedmodificationoftheicemachinaglycolheadera<<describedin12MM-267.TheDesfgnChangeProposalwillmodifytheglycolreturnand<<upplyheadertotheicemachinetoaccommodatesupplementalcooling,Thefnstallatfonwillrequireatfe-inutilizingateeonasixinchdiameter<<ectionofpipewithaflangeandavalvetof<<clat>>flow.SincetheproposedlocationofthemodfficatfonistheUnit1afdoofthe650'levation,theconcern-arisesinOatany1>>aks-fromthesystemwouldhaveadirectroutetotheenvironment.ItisthereforerecommendedthatacontafnmentstructureencompasstheproposedmodificationtomitigatethepotentialoiaglycolLeat'romthesystem..Asdescribedabove,itcanbaconcludedthatthereapp>>arstob>>nounxevfewedenvironmentalque<<tionasdefinedinSection3.1ofAppendixBoftheFacilftyOperatingLicense.Thepropo<<adactivitywouldpo<<>>nosignificantadverseeH>>ctontheenvironment.Fromthe<<copeandrespon<<ibilftyoftheRadiologicalSupportSection,anEnvironmentalEvaluationisnotrequiredandtheactivitydefinedin12-MM-267mayproceed,Approvedby:Z/d'~D,R.Williams,ManagerRadiologicalSupportSectionz./p~Concurrenceby:k~NucleacensingSectionConcurrenceby;D,C.CnvfronmentaSetion~Ldgc:S.Hover12-MM-267PacketX-RS-7915 OateFebruary18,1992IceMachineGlycolHeaderModification,12-Kf-267FromR.M.ClaesToJ.E.TraderPursuanttoRadiologicalSupportSectionProcedureRS-34,thismemoshallservetodocumentthatanEnvironmentalEvaluationisnotrequiredtobeperformedfortheproposedmodificationoftheicemachineglycolheaderasdescribedin12-MM-267.TheDesignChangeProposalwillmodifytheglycolreturnandsupplyheadertotheicemachinetoaccommodatesupplementalcooling.Theinstallation'willrequireatie-inutilizingateeonasixinchdiametersectionof,pipewithaflangeandavalvetoisolateflow.SincetheproposedlocationofthemodificationistheUnit1sideofthe650'levation,theconcernarisesinthatanyleaksfromthesystemwouldhaveadirectroutetotheenvironment.Itisthereforerecommendedthatacontainmentstructureencompasstheproposedmodificationtomitigatethepotentialofaglycolleakfromthesystem.Asdescribedabove,itcanbeconcludedthatthereappearstobenounreviewedenvironmentalquestionasdefinedinSection3.1ofAppendixBoftheFacility.OperatingLicense.Theproposedactivitywouldposenosignificantadverseeffectontheenvironment.FromthescopeandresponsibilityoftheRadiologicalSupportSection,anEnvironmentalEvaluationisnotrequiredandtheactivitydefinedin12-MM-267mayproceed.4Approvedby:<~.W~~ZD.R.Williams,ManagerRadiologicalSupportSection2./eyg~Concurrenceby:cAMNuclearCLicensingSectionConcurrenceby:D.C.Cnvir'onmentaSetionedgc:S.Hover12-MM-267PacketDC-RS-7915 AMKRlCANELECTR%POWKRDateApril15,1992SubjectEnvironmentalEvaluationoftheSodiumHypochloriteInjectionSystemFromR.M.ClaesToJ.J.Satin12-PM-801PackagePursuanttoRadiologicalSupportSectionProcedureRS-34,thismemoshallservetodocumentthatanEnvironmentalEvaluationisnotrequiredtobeperformedfortheproposedinstallationofasodiumhypochloriteinjectionsystemasdescribedin12-PM-801.Thismodificationwillinstallapermanentliquidsodiumhypochloriteinjectionsystemtoreplacethe.existinggaseouschlorinationsystem.ThesystemshallbeusedtocontrolmicrobiologicalgrowthandmacrofoulinginfestationintheCirculatingWater,ESW,NESW,andMake-upWatersystems.Environmentalconcerns.inherentinthismodificationhavebeensatisfactorilyaddressed.TheMaterialSafetyDataSheetfortheuseofsodiumhypochloriteonsiteisapprovedandonfile.Stationpersonnelcognizantofthissystemanditsfunctionareexperien'cedintheprecautionsandhandlingofthischemicalsolution.Mitigationofsignificantenvironmentalimpactbytheinstallationofthissystemhasbeensatisfiedbytheconstructionofaconcretecontainmentstructuresurroundinganinstalledsodiumhypochloritestoragetank.Thecontainment.structurewillretainapproximately100%ofthecontentsofthetankintheeventofabreechofintegrity.DrainageofthecontainmentstructurewillbetotheTurbineRoomSumppreventingadirectreleasepathwaytoLakeMichigan.Inaddition,thismodificationincludesconstructionofapracticalbulkchemicalunloadingarea.Thisareawillbeconstructedofapolylinerunderasphaltwithavalveddrain.Itisgradedandcurbedtocontainapproximately150%ofastandarddeliveredvolume~InaccordancewithTechnicalSpecification,environmentalconcernsi'dentifiedintheFinalEnvironmentalStatementwhichrelatetowaterqualitymattersareregulatedbywayofthelicensee'sNPDESpermit.ThecurrentNPDESrevisionrecognizestheuseofandhasestablishedeffluentconcentrationlimitsforsodiumhypochloriteinthisapplication.

J.J.SatinApril15,1992Page2Theproposedactivitywillonlyaffectareasoftheenvironmentthathavebeenpreviouslydisturbedorwhichhavebeenevaluatedforsignificantadverseenvironmentalimpact.Asdescribedabove,itcanbeconcludedthatthereappearstobenounreviewedenvironmentalquestionasdefinedinSection3.1ofAppendixBoftheFacilityOperatingLicense.Theproposedactivitywouldposenosignificantadverseeffectontheenvironment.FromthescopeandresponsibilityoftheRadiologicalSupportSection,anEnvironmentalEvaluationisnotrequiredandtheactivitydefinedin12-PM-801mayproceed./Approvsasy:~+Id"A~K.6<6<I/~~D.R..Williams,ManagerRadiologicalSupportSectionConcurrenceBy:4IS'2-ucearicensingtConcurrenceBy:DonaldC.oEnvironmentNuclearPlantSectionc:DC-RS-7915 AMERICANELECTRlCPOWERpateJune121992StjbjaotEnvironmentalEvaluationAssessmentFromr.J.~J.LLichneruio'oJ.P.GarisonRadiologicalSupportSectionFileDC-RS-7915Re:LettertoDNRDatedApril27,1992fromJ~P.GarisonPursuanttoRadiologicalSupportSectionprocedureRS-34,thismemorandumshallservetodocumenttheenvironmentalevaluationfortheproposednaturetrailsinthevicinityofthevisitorcenter.Mr.GarisonrequestedapprovalfromtheDNRtoconstructnaturetrailslocatednorthoftheEnergyInformationCenter.AsmallwoodenplatformtooverlookLakeMichiganandanobservationtowernearawetlandsareawillalsobeincluded.Thisassessmentisbasedonwhetherornotthisproposedactivityinvolvesanunreviewedenvironmentalquestion.Thatis,willthis0"'mpactpreviouslyevaluatedinthefinalenvironmentalstatement(FES)..Secondly,doesthisactivityhaveasignificantchangeineffluentsorpowerlevelwhichmayhaveasignificantadverseenvironmentalimpact..ItisstatedintheFES(V-1)Section2,therewasnospecificplanforpermittingpublicaccesstoanypartofthe650acreproperty,exceptfortheVisitorCentergroundsandparkinglot,.ThesenaturetrailsarenothingmorethananextensionofthevisitorcenterandtheimpactofconstructingthetrailsisnotsignificantincomparisontotheimpactsoriginallyconsideredintheFESforvisitor'enterconstruction.ItisthereforeconcludedthatadditionoftheproposednaturetrailsandobservationdeckisconsistentwiththeassumptionsmadeintheoriginalFESevaluationoftheVisitor'sCenterfacilities.

J.P.GarisonJune12,1992Page2Furthermore,theStateofMichiganisreviewingandwillneedtoapprovethisactivityandthenecessarycriticaldunepermitbeforewecanproceed.Therefore,anunreviewedenvironmentalquestiondoesnotexi.st.Approvedby:./.'~4&LE~D.R.Williams,ManagerRadiologicalSupportSectionConcurrence:NuclearLiingSectionConcurrence:M.84/'PfZ~GeneralSpisor,EnvironmentSectionedg 5AMERICAMEMClRlCPOWEROateSeptember15,1992SubjectEnvironmentalEvaluationoftheUndergroundStorageTankReplacementProjectFromR.M.ClaesToD,P.Ritzenthaler12-RFC-4113PackagePursuanttoRadiologicalSupportSectionProcedureRS-34,thismemoshallservetodocumentthatanEnvironmentalEvaluationhasbeenperformedfortheproposedreplacementoftheundergroundstoragetanksasproposedin12-RFC-4113.Theundergroundtanksproposedforremovalandreplacementarealllocatedwithinpreviouslydisturbedareasandnofurthersignificantenvironmentalimpactsshouldbeexperienced.TheRFCpackagecomprehensivelydetailsprovisionsthatwillmitigatethepotentialforfutureenvironmentaldegradationduetoanyassociatedsystemfailure.Theremovalofdrywellsaffectedbythispro]ectwillberectifiedunderaseparatedesignchangepackagerTransformerJ)eckDrainOilWaterSeparatorModification,forwhichanenvironmentalevaluationwillbeperformed.Theproposedactivitywillserveasasite-enhancement.byreducingthepotentialforenvironmentaldegradationduetoonsitefuelstoragerequirements.Asdescribedebon,itcanbeconcludedthatthereappearstobenounreviewedenvironmentalquestionasdefinedinSection3.1ofAppendixBoftheFacilityOperatingLicense.Theproposedactivitywouldposenosignificantadverseeffectontheenvironment.Initiationoftheproposedactivitydefinedin12-RFC-4113willbecontingentuponobtaininganyrequiredpermitsandauthorizationswhichmayincludethefollowingitemstoensurethattherearenoadverseenvironmentaleffects.Activity,suchasconcretework,thatwillbeperformedinareaspreviouslydisturbedandwillimposeinsignificantenvironmentalimpactmayproceedasnecessarypriortosatisfyingthecontingencies.HPDESpermitfordischargingwaterfromdewateringoperationsPermissionfromMichiganDNRtoperformworkontheplantheatingboilerswhicharelocatedinaknownAct307oilcontaminationsiteObtainingCriticalDuneandErosionpermitse September15,1992Page2NotifyingtheStateFireMarshallDevelopingadisposalplanforpotentiallyoilcontaminatedsoilApprovedby:D.R.Williams,Manager,RadiologicalSupportSectionConcurrenceBy:ucleLice~gConcurrenceby:DonaldC.CNuclearPlant,EnvironmentalSectionedgc:~~DC-'RS=.7915'::8 AMERICANELECTRICPOWEROateOctober9,1992SubjectEnvironmentalEvaluationoftheTransformerDeckDrainOfl/MaterSeparatorModificationFromR.M.ClaesToR.O.Beem12-PM-1201PackagePursuantCoRadiologicalSuPPortSectionProcedureRS-34,ChfsmemoshallservecodocumeacthatanEnvironmentalEvaluationhasbeenPerformedfortheProPosedtransformerdeckdzainoil/waterseparatormodificationasdescribedfn12-PM-1201.ThismodificationwillservetoeahancethePerfozmanceoftheoil/waterseparatorsandtherebymitigatetheconsequencesoffirewaterdelugecombinedwithatransformeroilspill.NosignificantadverseenvironmentalimpactisidentifiedbytheuseofthissystemafterChemodificationiscomplete.Thedzywellsproposedforremovalaspartofthemodificationarealllocatedwithinpreviouslydisturbedareasaadnofurthersignificantenvironmentalimpactsshouldbeexperienced.TheRFCpackagedetailspzovisfonsthatwillmitigatethepotentialforfutureenvironmentaldegradationduetoanyassociatedsystemfailure.Theproposedactivitywillserveasasiteenhaacementbyreducingthepotentialforenvironmentaldegradationduetonormalwater/oilwasteandoil/waterdelugetothetransformerdeckdrain.Asdescribed'bove,itcanbeconcludedthatthereappearstobenounreviewedenvironmentalquestionasdefinedinSection3.1ofAppendixBoftheFacilityOperatingLicense.Theproposedactivitywouldpose"nosignificantadverseeffectontheenvironment.InitiationofCheproposedactivitydefinedin12-PM-1201willbecontingentuponobtaininganyrequiredpermitsandauchorizatfonslwhfchmayincludethefollowfagitemstoensureChatCherearenoadverseenvironmentaleffects.Actfvity,suchasconcretework,thatwillbeperformedinareaspreviouslydisturbedandwillimposeinsignificantenvironmentalimpactmayproceedasnecessarypriortosatisfyingthecontingencies:NPDESpermitfordirectingofl/waterseparatoreffluenttothestormwaterdrainagesystemi~0~~~I~I~'AI11 October8,1992Page2NPDESpermitfordischargingwaterfromdewateringoperationsDevelopingadisposalplanforpotentiallyoilcontaminatedsoilApprovedby:D.R.Williams,Hanager,RadiologicalSuppo'rtSectionConcurrenceBy:learmngConcurrenceby:Donal.kNucle'arPlant,EavironmentalSectionedgc::.-DC-RS-7915 AMERICANELECTRICPOWERDateMarch1,1993EnvironmentalEvaluationoftheProposedInstallationofDedicatedFireWaterStorageTanks,RFC12-3065R.M.ClaesP.J.Russel12-PM-3065PackagePursuanttoRadiologicalSupportSectionProcedureRS-34,thismemoshallserveastheEnvironmentalEvaluationfortheproposedinstallationofdedicatedfirewaterstorage,tanksasdetailedin12-PM-3065.TheRFCisdeemednecessarytoreplacetheLakeMichigansupplysource.ThissourcehasbecomeinfestedwithZebraMusselswhichcouldpotentiallyposeadverseaffectsonthefireprotectionsystem.Thetanksproposedforinstallationarelocatedwithinpreviouslydisturbedareasandnofurthersignificantenvironmentalimpactsshouldbeexperienced.TheRFCpackagecomprehensivelydetailsprovisionsthatwillmitigatethepotentialforfutureenvironmentaldegradationduetoanyassociatedsystemfailure.Eachofthetwodiesel.drivenpumpswillhaveanassociated250gallonfueloiltankwithinthepumphouse.Eachtankwillbelocatedwithinaconcreteblockdikeinsidetheindividualfirepumprooms.Thedikeswillsufficientlycontainthevolumeoftheassociatedtank.Thepumphouseinternalfloordrainswillberoutedtothecondenserpitsumppumpstomitigateanyspillswithinthepumphouse.Inaddition,afuelunloadingareawillbeprovidedwhichwillbecapableofcontainingtheentirevolumeofthelargestcompartmentofatankerunloadingtothesystem.Astormwaterdraininthevicinityofthepumphousewillberelocatedtoprecludethepotentialforfueloiltoenterthedrainagesystem.Inaddition,theMichiganDepartmentofNaturalResources'riticalSandDunesPermithasbeenobtainedforthiswork.TheMDNRwasalsonotifiedofafacilitymodificationwhichwillresultinachangeinconditions,perNPDESPermitMI0005827.Specifically,dieselpumpcoolingwaterwillbedischargedtoLakeMichiganviaoutfall002S.Thismodificationwillnotresultinanew,different,orincreaseddischargeofpollutants.(SeeattachedmemoofJanuary14,1992toMDNR.)

P.J.RusselMarch1,1993Page2Asdescribedabove,itcanbeconcludedthatthereappearstobenounreviewedenvironmentalquestionasdefinedinSection3.1ofAppendixBoftheFacilityOperatingLicense.Theproposedactivitywouldposenosignificantadverseeffectontheenvironment.FromthescopeandresponsibilityoftheRadiologicalSupportSection,theactivitydefinedin12-PM-3065mayproceed.\D.R.Williams,Manager,RadiologicalSupportSectionConcurrenceBy:PSCunclearLiingConcurrenceBy:onaldC.ookNuclearPlant,vironmentalSectionc:DC-RS-795 Or,sCookP!acaBiidgman,Ml4910S6164655901FredMorley,DistrictSupervisorMichiganDepartmentofNaturalResources62KNorthTonthStreetP.O,Box355Plainwell,Michigan49080Js"CIAJCLJanuary14,1992

DearMr.Morloy,

Re:NPDESPermitNo.HI0005827CookPlant,Bx'idgman,MichiganAsrequiredbypartXX.A.2oftheCookplantNationalpollutantDischargeEliminationSystem(NpDRs)permitHo.Ml0005827,we..axeprovidingnotificationofafacilitymodificationwhichwil3...resultina.changeof.conditions.Medonotbelievethatthismodificationwillresultinanew,different,orincreaseddischargeofpollutantsforreasonsdiscussedbelow.Specifically,theCookplantisFireprotectionSystemisbeingmodifiedasaxeeultoftheinfestationofPreissenapolymorpha(Zebramussel)inLakeMichigan.ThesystemwhichnovdravssupplywaterfxomLakeMichigan,willbamodifiedtousechlorinatodT.akaTownshipdrinkingwaterasthewatersource.Electricalpumpswillserveasthepximaxymeansformaintaininadocpxatepressureinthefireprotectionheadexs.Dieselbackuppumpsvillbeinstalledtoensureadequatesystempressureinthe.eventoflossofelectricalpoweroxextremelyhighwaterdemand.Mheneachdieselpumpoperates,adesignflowofappxoximately60.gallonsperminuteofthedischargewaterispumpedtocooltheengineblockviaaheatexchanger.(BeeAttachmentg1.)ThiscoolingwaterwillbedischargedtotheplantstormvatersystemandreachLakeMichiganviaStormwatlrOutfall002SThecurrentcookplantFireprotectionsystemconfigurationissimilaxinthattheinitialresponsepumpsaroelectricallydx'ivan,andthedieseldrivenpumpsessentiallyserveaabackups.TodatethadieselpumpshaveneverbeenusedtofightafireatCockP'ant.Thepumpsareinfrequentlyusedtomaintainwaterpressureduetosystempressureloss,Shouldthistrendcontinue,thenewdieselpumpswillbeoperatedfortestingpurposesonly.Testsarerunmonthlyfoxapproximately30minutesperpump.Onceevexy18monthsthapumpsarerunsimultaneouslyforapproximately15-20minutes,alsofaxtestingpurposes.Assuming.thisschedule,approximately45,600gallonsperyearwouldhedischargedtoLakeMichigan.Monthlydischargeswouldbeapproximately3,600gallons.MAR1'9315:386164656161PRGE.882 ProdMorley,DistrictSuyezvisorJanuary,14,1992Page241Duetotherelativelysmallamountofwaterbeingdischar9'ed/thefactthatitiaLakeTownshipdrinkingwater',webelievethatthez'ewillQenoadversechangeinthecpxalityofthedischarg4flowfromStormwaterOutfall0028.Thechlorinecontentofthewateratthepointofdischargeshouldbanegligible,duet'o'issipationCuringthetimeitwillromaininonsitestoragetankspriortodischarge,andthechlorinedemandwhichwi11beencounteredinthestormwatersystem,Pleaseletmeknowifyouneedfurtherinformationregardingthisnotification.Sincerely,Diane:ieraidZnviroentalSupervisorFx;edMorley,DistrictSupervisorJ'anuary14,1992Page3bc:A.A.Ilind0oRoRutkbwikiJ.T.MogcikD.L.Sa3cerP.J.Russellc.i.HawkO'P.~CarisbnPeHoStathakisMAR1'9315:396164656861PAGE.883 19171615141Intakemanifoldaadintercooler(25000NKI!oalgQ.InterioroutletB.Iatercoolerinlet4.Thermostats5.PromiatsrcoolsroutlotS.ExpansiontankFigureQ.CooUagSystemV.Peassurecayppsi)1B.CoolantSlyBimeatexchs5gtr14.%sterpump0.Toinletof15<V/stermanifold.iateroooler1SOQcoolerM.Customersupplied17.Bleedtub>>scurc>>ofravreater1B.WaterinletmaaifoM11.Rawwateryumy19.%stercooledexhaust1LRavrwaterdischargemanifoldSchematicDiagram(HoatExchangerType)NRR1'9315:4861646S6861PAGE.884 APPENDIXIIIHERBICIDEAPPLICATIONREPORT1992

DateFebruary2,19935lNblANAMIC8lGANPOWERsub)cot1992HerbicideSprayReport-CookNuclearPlantFromJ,S.LewlToD.M.FitzgeraldFromJune3-7,1992,TownsendTreeServiceappliedamixtureofStompandOusttocontrolgrassandweedgrowthontheplantsite.Atotalof91.2quartsStompand91.2ouncesofOustwereappliedover33.4acres.Themanufacturer'slabelrecommendsthatStompbeappliedatarateofbetween24quartsperacre.Stompwasappliedatarateof2.7quartsperacre.Themanufacturer'slabelrecommendsthatOustbeappliedupto12ouncesperacre.Oustwasappliedatarateof2.7ouncesperacre.InNovember,theareastreatedwereinspectedandthefollowingobservationsweremade:1.SewagePonds:~Sparsepatchesofweedsgrowingonthesidesofbothsewageponds.Herbicideswereonlyappliedtothewater'sedge.Noevidenceofoverspraywasfoundinoraroundthesewageponds.2.RoadtoAbsorptionPond:Noweedsorsignsofoverspraywerefound.3.765kVSwitchgearYard:~Noweedswerefound.4.345kVSwitchgearYard:~Noweedsorsignsofoverspraywerefound.5.RailroadTrackseastoftheTrainingCenter:~Smallpatchesofweedsweregrowing,Novisiblesignsofoverspraywerefound.6.ParkingLotB:*~Patchesofgrasswerefoundgrowinginsidethefenced-inarea.Intra4ystem HerbicideSprayReportFebruary2,1993Page27.69kVSwitchgearYard:~Nosignsofweedsoroverspraywerefound.8.NorthProtectedAreaFence:~Goodweedcontrol.9.SouthProtectedAreaFence:Weedsaregrowingalongthefence.10.EastProtectedAreaFence:~Goodweedcontrol.11.ICMSOfficeTrailer:~Noweedswerefound.Novisiblesignsofoverspraywerefound.12.ICMSFabricationShop:~Sparsepatchesofweedsaregrowing.Nosignsofoverspraywerefound.13.SouthwestsideofTurbineBuilding:~Noweedswerefound.14.SouthendofTurbineBuilding:~Sparsepatchesofweedswerefoundgrowing.Nosignsofoverspraywerefound.15.Unit1RWSTArea:~Moderateweedcontrol.Someareaswerenotsprayed.duetoradiationprotectionrestrictions.80%killinareassprayed.16.Unit2RWSTArea:~Moderateweedcontrol.Someareaswerenotsprayedduetoradiationprotectionrestrictions.90%killinareassprayed.17.Hydrogen/NitrogenStorageTankArea:Nosignsofweedsoroverspraywerefound.18.ConstructionFabricationShop:~Noweedswerefound.19.RoadtotheMeteorologicalTowers:~Patchesofgrasswerefoundgrowingontheroads.Nosignsofoverspraywerefound.tntra4ystem HerbicideSprayReportFebruaxy2,1993Page3Basedonourreviewoftheapplicationrecordsandobservationsofthetreatedareas,itappearsthattheherbicideswereappliedinaccordancewithherbicidelabelrequirements,andnoadverseenvironmentaleffectsoccurred.Thefollowingadditionalareaswereidentifiedforthe1993herbicidetreatmentprogralQ:~OilBarn~PaintStorageBuilding~SandblastShack~Theroadleadingtoandaroundthetowerfromtheemployeeparkinglot.~Eastsewageplantparkinglot.Intra4ystem

APPENDIXIVMACROFOULERMONITORINGPROGRAM1992

IndianaMichiganPowerCompanyCookNuclearPlant1992ZebraMusselandAsiaticClamMonitoringandControlReportMarch18,1993INTRODUCTIONThelargedensitiesofzebramussels(180,000-200,000persquaremeter)reportedin1991actuallydecreasedin1992(67,000persquaremeter)duetotheincreaseintheaveragesizeofthemusselsandtheformationofclumpsonuntreatedintakestructuresandcomponentswithinthecirculatingwaterintakeforebayareas.Acoolsummerseasonin1992mayhaveledtoasmallerrecuitmentofzebramusselsinlowerLakeMichiganascomparedtothe1991spawningseason.(Schloesser&Nichols,EastLansing,MIzebramusselconferenceJan.11-12,1993)Areportonthebio-monitoringstudiesbyLMS"anddatacollectedbyERMareattached.Ofparticularnoteistherevelationthatintermittentchlorinationoftheservicewatersystemsat1.5-2.0ppmforone,155-minuteperiodeach24hourswasineffectiveincontrollingzebramusselinfestationinlowornoflowareas.Intermittentchlorinationofthecirculatingwatersystemat0.2ppmforone,155-minuteperiodeach24hourswasalsoineffectiveincontrollingzebramusselinfestationinlowornoflowareas.ERADICATIONANDCONTROLMEASURESThe1992controlstrategyconsistedoftheuseofaproprietarymolluscicide(Clam-trol),intermittentchlorinationoftheserviceandcirculatingwatersystems,andmechanicalcleaning.MECHANICALCLEANINGBothUnit1andUnit2underwentrefuelingoutagesduringtheyear.Thisallowedthemechanicalcleaningofzebramusselsbydiversinthecirculatingwaterintakeforebay.Hydrolasersanddredgepumpswereused.toremove1-2"ofzebramusselgrowthfromthewallsandcomponentswithintheintakeforebay.Thecirculatingwaterintakecribswerealsocleanedofzebramussels.Asaresultoftargetedmolluscicidetreatmentstothenorthandcenterintakepipelines,andalargescaletreatmenttothe.intakeforebayin1992,theplantexperiencedalargeinfluxofdeadmusselsfromthesesourceswhentheunitswerebroughtupinpowerinthefall.Over1,100cubicyardsofzebramusselswereremovedfromtheCookNuclearPlantcirculatingwaterintakeforebaysasaresultof.mechanicalcleaningduringoutagesandintheaftermathofmolluscicidetreatments.ZebramusselsloughagefromtheSouthintaketunnel,whichwasnottreatedwithmolluscicidein1992,isstilloccuring.Themusselsfromthissourcearebeingremoved fromthecirculatingwaterbythetravelingscreens.CLAM-TROLTREATMENTRESULTSClam-trol(BetzIndustrial,Inc.)treatmentsinvolvingdischargestothesurfacewaterswereperformedinfourphasesin1992anddiscussedbelow.ThefireprotectionsystemwasflushedwithClam-trolinvolvingagroundwaterdischargefourtimesin1992.Wholeeffluenttoxicitytestingwasperformedtodemonstratecompliancewithwaterqualitystandardsfortreatmentstothenorthandcenterintaketunnels,andcirculatingwatersystem.Thistestingwasconductedasarequirement,oftheMichiganDNRClam-trolauthorizationletterofApril24,1992.Phases162-TreatmentstotheNorthandCenterIntakePipelinesLowdemandforcirculatingwaterasaresultofplantoutagesallowedfortheintakepipelinestoberemovedfromserviceandtargettreatedwithClam-trol.Asaresult,chemicalusageofboththeClam-trolandthebentoniteclaydetoxicantwasgreatlyreducedwithgoodresults.Thenorthintakepipelinewastreatedatatargetfeedconcentrationof15ppmfor12hoursonAugust12-13,1992andthecenterintakepipelinewastreatedonSeptember11-12,1992.Zebramusselmortalitiesweredeterminedtobe>954asdeterminedbydivinginspectionsperformedfollowingthetreatments.Phase3-CirculatingRaterSystemTreatmentOnSeptember16,1992,theentirecirculatingwatersystemwastreatedfor12hoursusing'lam-trolatatargetfeedrateof15ppm.Bentoniteclaywasinjectedintothedischargeasadetoxicantataratioofatleast3:1clay:Clam-trolbeforebeingdischargedtoLakeMichigan.Zebramusselmortalitiesmeasuredbybio-boxesplacedthroughouttheplantrangedfrom87-994.Subsequentintakeforebayinspectionsbydiverstwoweeksaftertheapplication,indicateda>95%killwithcleanwallsandforebaycomponents.Phase4-Spot,.TreatmentoftheContainmentSprayHeatExchangersRoutineinspectionsoftheContainmentSprayHeatExchangersduringplantoutagesrevealedlightcolonizationofzebramussels.ThreeofthefourContainmentSprayHeatExchangersweretreatedfor48hourseachat50ppmClam-trol.CirculatingwaterdilutionflowswereadequatetoensurethatdischargeconcentrationsofactiveClam-trolwerebelowthe0.05ppmatplantoutfalls001and002.TheUnit1and2WestContainmentSprayHeatExchangersweretreatedfrom11/23/92to11/25/92.TheUnit1EastContainmentSprayHeatExhangerwastreatedfrom12/9/92to12/11/92.TheUnit2EastContainmentSprayHeatExchangerwasnottreatedduetotheneedforavailabilityoftheheatexchangerduringunitstart-up.Alsofallinglaketemperaturesmayhaverenderedthetreatmentineffectiveifperformedatalaterdate.

Zebramusselmortalitieswerenotassessedfromthesespottreatments.Instead,pressuregaugeswereinstalledattheinletandoutletpipingtomeasurethepressuredropacrosseachheatexchanger.Aflowimprovementof100gpmwithacorrespondingincreaseindeltaPwasmeasuredafterthetreatmentstotheUnit1andUnit2NestContainmentSprayHeatExchangers.Thisdatashowedaslightimprovementinheatexchangerperformancewhenhydraulicflowresistancewasanalyzed.NoperformanceimrovementsweredetectedafterthetreatmenttotheUnit1EastimprovemeContainmentSprayHeatExchanger.PireProteectionSystemTheplant'sfireprotectionsystemwasflushedwithatargetfeedof15ppmClam-trolfourtimesduring1992.Nomortalitystudieswereperformed.Constructionofdedicatedfireprotectionwatertanksandapumphousewasbegunin1992underRFC-3065.Thefireprotectionsystemwatersourcewillbeswitchedtomunicipaldrinkingwaterin1993,thuseliminatingthethreatofzebramusselinfestation.CHLORINATIONTREATMENTRESULTSIn1992,theessentialservicewater(ESN)andnon-essentialservicewater(NESN)systemsreceiveddailyintermittentsodiumhypochloritetreatmentsof1.5-2.0ppmtotalresidualchlorine(TRC)for155minutesfromMayuntillateNovember.Duringthesameperiod,thecirculatingwatersystemreceiveddailyintermittentsodiumhypochloritetreatmentsof0.2ppm(TRC).TheconstructionofapermanentsodiumhypochloritefeedsystemunderPM-801wascompletedbeforethe1992treatmentprogram.Fromheatexchanger,condenserwaterbox,andvariouspipinginspections,itwasdeterminedthattheintermittentchlorinationprogramwaseffectiveinareasofadequateflow.Inareasoflowornoflow,colonizationwasdetected.Inspectionsofthecirculatingwatersystemrevealedthatthelowlevelsofchlorineat0.2ppm(TRC)wereeffectiveinslimecontrol,buthadlittleornoeffectincontrollingzebramusselcolonizationinareasoflittleornoflow.Systemstakingsuctionfromthecirculatingwatersystemwhichareexposedtothislowlevelofchlorination,includingtheofficebuildingairconditioning,miscellaneousseal6cooling,screenwashpumps,lawnsprinklerpump,andchlorineinjectorwatersupplypump,weresub'ectto'olonizationofzebramussels.AfterClam-troltreatments,musselsresidingwithinthesesystemswoulddieandcausepluggingproblems.The1993chlorinationstrategycallsfortheservicewatersystemstobetreatedcontinuouslyat0.5ppmtoensurecolonizationdoesnotoccurintheESWandNESN.Filtration,chlorination,chlorine/bromineandmultipleClam-troltreatments,arebeingstudiedforsystemswhichtakesuctionfromthecirculatingwater system.CONCLUSXONShocktreatmentsofaproprietarymolluscicidetoremediatejuvenileandadultzebramussels,inconjunctionwiththeuseofsodiumhypochloritetocontrolveligersettlement,hasbeenaneffectivemethodincontrollingzebramussels.Mechanicalcleaningcanbeeffectiveinareaswherechemicalmeansareimpossibleoruneconomical.Chemicalmethodsforcontrollingzebramusselsinlowornoflowareasoftheservicewatersystemscanbeimprovedwithcontinuouschlorination.Switchingthefireprotectionsystemfromrawlakewatertomunicipaldrinkingwaterin1993willeliminatethethreatofzebramusselinfestationinthefireprotectionsystem.Abio-monitoringprogramutilizingsidestreamandartificialsubstratemonitorsalongwithdiverandheatexchangerinspectionswillcontinuetobeusedtoevaluatetheeffectivenessofchemicalandphysicalcontrolmeasures.

DONALDC.COOKNUCLEARPLANTMOLLUSCBIOFOULINGMONITORINGDURING1992PreparedFor.AMERICANELECTRICPOWERSERVICECORPORATIONOneRiversidePlazaColumbus,OhioApril1993PreparedBy:LMSE-93/0201&652/001LAWLER,MATUSKYScSKELLYENGINEERSEnvironmentalScience&EngineeringConultantsOneBlueHillPlazaPearlRiver,NewYork10965 CHAPTER1INTRODUCHON1.1PASTHISTORYIndianaandMichiganPowerCompany(I&M),asubsidiaryofAmericanElectricPower(AEP),hasbeenconductingbio-foulingstudiesattheDonaldC.CookNuclearPlant(CookNuclearPlant)since1983.Initially,thestudiesweredirectedtowardAsiaticclams.However,withtherecentappearanceofzebramusselsinLakeMichigan,thestudieswereexpandedin1990toincludezebramussels.Thepurposeofthestudieswastodetectthepresenceofbio-foulingmollusksinthecirculatingwater,essentialservicewater(ESW),nonessentialservicewater(NESW),fireprotectionsystem,andproximalLakeMichigan.Thepurposeofthe1992monitoringprogramconductedbyLawler,Matusky&SkeiiyEngineers(LMS)wastodeterminewhenspawningandsettlingofzebramusselsoccurattheCookNuclearPlantandnearbyLakeMichigan.'Ihemonitoringprogramwasdesignedtocollectandanalyzewhole-watersamplesfor~planktonicveligers,andartificialsubstratessetwithinthecirculatingwater,ESW,andNESWsystemsforjuveniles.Inaddition,sampleswerecollectedfromtheGreprotectionsystemandotherrandomlyselectedlocations.BeachsurveyswereconductedalongtheshorelineofLakeMichigannearthe'ookNuclearPlantandneartheconQuenceoftheSt.JosephRiverandLakeMichigan.1.2OBJECTIVESSpecificobjectivesforthe1992bio-foulingmonitoringprogramwereasfollows:~Whole-watersamplingofthecirculatingandservicewatersystemswasconductedonasemi-weeklybasisduringafour-weekperiod(mid-Julytomid-August).Thesamplingwasconductedtodeterminethepresenceandconcentrationofplanktoniczebramusselveligem.Lawler,Matusky&SkellyEngineers

~Fireprotectionwatersamplingwasconductedforthepresenceofzebramusselshellsduringflowtests.~Artificialsubstratesweredeployedintheintakeforebayandservicewatersystemstodetectsettlementofpostveligerzebramussels.SamplesweretakeneverytwoweeksfromJulythroughOctoberandeverythreeweeksinNovemberandDecember.~BeachinspectionswereconductedduringJuly,September,andNovembertodetectadultzebramusselpresenceandcolonizationnearCookNuclearPlantandatthemouthoftheSt.JosephRiver.~Tocheckonsuspectedinfestations,plantpersonnelcollectedsamplesfromwithintheplantatlocationsandtimesthatwereoutsidethesampledesignoftheprogram.~TemperatureandpHwererecordedduringeachwhole-waterandartiflcialsubstratesamplingperiod.1-2Lawler,Matusky&SkellyEngineers CHAPTER2METHODS2.1CIRCULATINGANDSERVICEWHOLE-WATERSAMPLINGWhole-watersamplingofthecirculatingandservicewatersystemswasconductedoverafour-weekperiodbetween21Julyand14August1992.SamplesweretakenfromtheintakeforebayandESWandNESWsystems.Eight24-lirsamplesfromeachofthethreesystemswerecollectedandanalyzed.SampleswereinitiatedonMondayandThursdaymorningandconcludedTuesdayandFridaymorningsduringthefour-weekperiod.Thewhole-watersamplingprocedureforthecirculatingwatersystemwasmodifiedduringthefour-weeksamplingperiod.Initially,adiaphrampumpwasusedtopumpwaterfromtheUnit2dischargeforebay.Becauseofthehighflowrateandpulsingactionofthispump,thepumpwasreplacedandthesamplinglocationchanged.AJABSCObrandcentrifugal'pumpratedat26gpmwasusedtopumpwaterfromtheplantintakeforebay.TheJABSCOwasabletodeliver13gpminuse.BoththeESWandNESWwhole-watersamplesweretakenfromthebiomonitordischargehoses.MeasuredflowwasdirectedintoNo.20netsthatweresuspendedinapartiallyfilled55-galbarreltominimizeorganismabrasion.Samplesweregentlywashedfromthecod-endintoasamplejarandputonice.Forallsystems,flowcalculationsweredeterminedbyflllingabucketandtimingthefillingwithastopwatch.Thisprocedurewasperformedatthebeginningandendofeachsamplingperiod.Sampleswerecountedlivewithin24hrsofcollection.Thosenotanalyzedwithin24hrswerefirstpreservedoniceandthenwithethanol.Duetothelargesamplevolumes,allsamplesweresubsampledusingcalibrateddisposablePasteurpipets.Five,1-mlaliquotswereexaminedinaSedgewick-Raftercell.CountingmethodologiesfollowedthoserecommendedbyMarsden(1992).Rawcountsinthealiquotsweremultipliedbytheconcentrationvalue,thendividedbythetotalvolumetoyieldnumberofveligersper1000l.2-10Lawler,Matusky&SkellyEngineers 2.2FIREPROTECTIONSAMPLINGThefireprotectionsystemsweresampledbydirectingtheQrst3to5minofhydrantflowthroughaNo.35sieveduringflowtesting.Thecontentsofthesieveswereexaminedon-siteforthepresenceofshellorshellfragments.Nomicroscopicexaminationwasrequiredforthesesamples.Althoughamonthlysamplingplanwasoriginallyscheduled,plantmanagementprohibitedlowtestingwithouttheintroductionofamolluscicideintothesystem.Misrequirementrestrictedthefrequencyoffireprotectionsamplingtothosetreatmenttimes.23ARTIFICIALSUBSTRATESiAnumberofartificialsubstratesweredeployed.Toassessthedegreeofzebramusselsettlementwithinthecirculatingwater,ESW,andNESWsystems,threeartificialsubstrateswereplacedintheintakeforebayupstreamofthetrashracksandtwobiomonitorsweresetintheESWandNESWsystemsrespectively.TheforebaysamplersconsistedofPlexiglassracks(Figure2-1)designedtohold40standardmicroscopeslidesthatcouldberemovedforanalysis.Twoslideswereplacedbacktobackineachslot,whicheliminatedtheneedforscraping,Racksweredeployedbyropestoapproximately0.5mfromthebottom,anchoredwithacinderblock,andorientedsuchthatflowwasperpendiculartotheverticallyplacedslides.DeploymentofracksfollowedapprovedI&Mplantequipmentinstallationprocedures.ArtificialsubstratesplacedintheESWandNESWsystemsconsistedoftesttuberacksequippedwith12microscopeslideseach.Tworackswereplacedwithineachbiomonitor(Figure2-2).TheslideswereexaminedeverytwoweeksduringthemonthsofJuly,august,September,andOctober.ThesettimewasextendedtothreeweeksduringNovemberandDecember.Slidesremovedfromtheforebayracksandbiomonitorswereexaminedusingalow-power~~~~~~~~~(10-40x)dissectingmicroscope.Musselsthatsettledontheentireareaofonesideofaslide2-2Lawler,Matnsky&SkellyEngineers FIGURE2-1SLIDERACKFORDEPLOYMENTlNINTAKEFOREBAYDonaldC.CookNuclearPlant1992DOUBLERACKOFSUDES(TYPICAL)REMOVABLELUCITESTRIP(L)34.8cmx(W)2.5cmx(H)0.6cmNYLONWINGNUT3.7cmSUTSTOMOUNTSUDEFRAMES4mm(TYPICAL)EACHSUTFITS2SUDES20SUTS40SUDESNOTTOSCALE FIGURE2-2ARTIFICIALSUBSTRATEBIOMONITORDonaldC.CookNuclearPlant1992DISCHARGE3/4-IN.DISCHARGE.I1IIIIIIIIIII1tIIIIIIIII1IIIIIIIIIIIITOPWITHBOLTSFORINSPECTION6-IN.DIAMETERAPPROXIMATELY3FTTALLSLIDESWITHTESTTUBERACKSINTAKE3/4-IN.PIPINGCLEANING,FLUSHVALVE (25mmx75mm)werecounted.Thisvaluewasmultipliedbyaconversionfactor(533)tocalculatethenumberofsettledmusselspersquaremeter.Thesenumberswerethenaveragedforallslidescontainedwithinasamplertocomputeaveragesettlingdensitiesduringeachsamplingintervalateachlocation.2.4BEACHWALKSAMPLINGBeachwalksamplingwasconductedonceduringeachofthemonthsofJuly,September,andNovember.ThemajorareasexaminedwerethebeachadjacenttotheplantandthejettyandriprapatthemouthoftheSt.'JosephRiverinSt.Joseph,Michigan.Beachwalkswerelimitedto45minineachareapersamplingperiod.2.5INSPECTIONSAMPLINGANALYSESPlantpersonnelsubmittedtwosamplestakenfromorneartheplantforanalysis.Sampleanalysisconsistedofinspectionforwholemusselsandshellfragments.2.6RANDOMSAMPLINGANALYSESPlantpersonneldeployedsubstratestreatedwithexperimentalprotectivecoatingsforasix-weekstudyperiod(mid-JulytoearlySeptember),Substrateswereexaminedforvisiblesettledjuveniles,withthedegreeofinfestationbeingnotedasheavy,medium,light,ornone.Thosewithlightornojuvenilesettlementwerefurtheranalyzedundermagnificationtodeterminequantitativepostveligersettlementdensities,ifnecessary.2.7WATERQUALITYMONITORINGDuringeachsamplingevent(wholewaterandartificialsubstrate),watertemperaturesandpHmeasurementsweretakenwithcalibratedcertiGedASTMthermometersandpHpens,givingtheprecisionlevelof+0.1'Cand+0.1pHunits,respectively.2-3Lawler,Matusky&SkellyEngineers 2.8NONRADIOLOGICALQUALITYASSURANCE/QUALITYCONTROLNonradiologicalqualityassurance/qualitycontrol(QA/QC)wasanimportantaspectoftheprogram.QAwasincorporatedintotheprograminseveralareas.LMSpersonnelassignedtothisprojectweretrainedon-siteinpropercollectionandhandlingtechniques.Standardproceduresweredevelopedandfollowed.LaboratorytechniquesweresupervisedbyMs.Bardygula-Norm,ourin-houseexpert.Ms.Bardygula-NormservedastheQCinspectorthroughoutthestudy.Fieldauditswereperformedonwhole-watersampling,artificialsubstratesampling,andonebeachwalk.LaboratoryQCinspectionsshowedanaverageoutgoingqualitylevel(AOQL)of<0.05.-TheAOQLisbasedonqualitycontrolstatisticalprobability.Itdenotesthenumberofdefectiveunits(errors)thatcanbeexpectedintheproduct.Inthiscase,theaccuracyoftheproductispredictedtobegreaterthan95%basedoninspectionofsamplesandthemeasurestakentocorrectdefects(errors).Lawier,Matusky8cSkellyEngineers CHAPTER3RESULTS3.1CIRCULATINGANDSERVICEWHOLE-WATERSAMPLINGSamplingofplanktonicveligersinthecirculating,ESW,andNESWsystemswasinitiatedon20Julyandcompleted14August.Atotalof24samplesweretakeninthethreedifferentsystems.Thecirculatingwatersystemsamplerwassusceptibletomechanicalfailure.Ontwooccasions,thepump'sthermalprotectorshutdowntheunitduringthe24-hrsamplingperiod.Causeswereactualpumpfailureandacloggedintake.Highplanktondensitiesinforebayon11and14Augustcausedthenettoclogandoverflowduringthenighthours.Asaresult,samplesonthesedatesrepresent8hrsofsampling.AllchangesweremadeafterapprovalbyI&Mpersonnel.Inlightoftheseproblems,caremustbetakenwheninterpretatingthecirculatingwaterdata,asearlycountsarelikelyunderestimated.NosimilarproblemswereencounteredontheESWandNESWsystemsbecausetheywereequippedwithvalvescapableofadjustingflowrates.The21JulysamplefromtheNESWsystemwasnottakenbecausenoflowwasavailableatthesamplingpoint.Thiswasaresultofanoutage.Thesamplingapparatuswasmovedtoanewlocationinthesystemforthenextsampleperiod,therebysolvingtheproblem.ResultsofsamplingarepresentedinTable3-1andFigure3-1.ESWresultsshowedonemajorpeakon11August,whendensitieswereinexcessof7000/ms.TheNESWsystemexhibitedapeakduringeachsamplingdateduringthe4-11Augustperiod.Densitiesinthecirculatingwatersystemdidnotexceed2000/msduringthesamplingseasonbutdidpeakon11August.3-1Lawler,Matusky4SkellyEngineers TABLE3-1WHOLE-WATERSAMPLINGVELIGERS/1000l,TEMPERATURE,ANDpHDonaldC.CookNuclearPlant21July-14August1992DATELOCATIONVELIGERABUNDANCE'CpH21July24July28July30July4August7August11August14AugustForebayESWNESWForebayESWNESWForebayESWNESWForebayESWNESWForebayESWNESWForebayESWNESWForebayESWNESWForebayESWNESW81395a716931049687531280b3214854619255350b161063001967'04355951438'291237321.928.9a15.616.219.018.518.722.918521.525.019.820.021.519319.520.421.822.222318.919.319.98.48.3a8.18.28.07.98.17.98.28.48.28A8.58.58.28.28.28.58.78.78.18.18.1'NosampleduetoinadequateQow.Nosampleduetopumpcloggingorfailure.'Represents8hrsofsampling.

Figure3-1WholeWaterSamplingVeligersPer1000LitersDonaldC.CookNuclearPlant1992FOREBAYIESWNESW500030002000100007/2107/2407/2807/3008/0408/0708/1108/14NESWESWFOREBAY 3.2FIREPROTECTIONSYSTEMSAMPLINGNomolluskswerefoundinanyofthehydrantsamples.'.3ARTIFICIALSUBSTRATESAMPLING3.3.1ForebaySettlingSettlingratesforthecirculatingwatersystem(forebay)areshowninTable3-2andFigure3-2.Averagesforthethreeforebaylocationsarenotpresentedsothatspatialdifferencesinsettlementresultingfromdifferentflowvelocitieswithinthebafflesinstalledintheforebaycanbeshown.Peaksettlementoccurredon6Octoberwithslightlyover100,000/m~detectedintheshelteredcentralforebaylocation.Otherforebaylocationspeakedsimultaneouslybutatmuchlowerdensities(6000to8000m~).Thesepeaksoccurredafterthewhole-watersamplingprogramhadended;therefore,noinferencescanbemade.Alatepeakthatoccurredon10NovemberatthecentralforebaylocationwastheresultoflargerjuvenilestranslocatingfromthePlexiglassframetotheslides.Thisphenomenoncontinueduntil22December,suggestingactivemovementevenatlowlaketemperatures.Nodataarepresentedfortheforebaysouthlocationfor10Novemberto22December.As.theunitcameonlinesuccessivecirculatingpumpswereturnedon,creatingthehighwatervelocitiesandheavyturbulence.Thisturbulenceshatteredallslidesheldatthislocation.3.3.2ServiceWaterSettlingSettlingratesfortheservicewatersystemsareshowninTable3-2andF;gure3-2.Anearlypeak(morethan45,000/m~)occurredon25AugustintheESWsystem,whiledensitiesover5000/m~occurredsporadicallyfromearlyAugusttothebeginningofDecember.TheNESWsystemexhibitedamuchlowerpeakofapproximately8700/m~on8September.3-2Lawler,Matushy&SkellyEngineers TABLE3-2GIPOSTVELIGERSEITLEMENT-No/maDonaldC.CookNuclearPlantJuly-December1992DATENESWFOREBAYSOUTHFOREBAYCEREALFOREBAYNORTH28July11August25August8September22September6October20October10November1December22December28736,0445,2378,6932,4697,1762,71171166727401,46745,2626,7191,6215,478a7,4227,1554/2204614865264,1016,019106bbb4,1601,0671,3978713,754102,09923913,4932@201/732@113133383793,7978,0371335,16553333811I'Resultofnoflowthroughbiomonitor;flowrestrictioncausedbyaccumulationofzebramusselshells.Slidesbrokenbyturbulence.

Figure3-2PostVeligerSettlementIndividualsPerSquareMeterDonaldC.CookNuclearPlant1992120100~ForebayNorthIForebayCentral~ForebaySouthIESWiiIIIlNEsw804Crt60DO402007/2808/1108/2509/0809/2210/060/2011/1012/0112/22ForebayNohhForebayCentralForebaySouthESWNESW Theserelativelyhighvaluesmaynotberepresentativeofactualsettlingwithinthesystembecauseofdesignproblemswiththebiomonitorsusedtohousetheslides.Havinglowflowratesandanupflowdesign,thesebiomonitorseasilycloggedwithsand,silt,andzebramusselshellsandshellfragments.Becauseofthereducedflow,settlingdataforNESWandESWshouldbeconsideredqualitatively.VisualinspectionsshowedthatlivejuvenileswereregularlypresentinsidethebiomonitorspriortotheClam-Trol,CT-1treatment.TheyreappearedinearlyOctobertolateDecember.Juvenilesof3to5mmwereabundantduringthefinalinspectionon22December,indicatingsurvivalandgrowthofzebramusselswithinlow-flowareasoftheservicewatersystems.Nozebramusselsettlingwasobservedontheheatexchangerinthecondensertubesatthesestations.3.3.3QualitativeEffectsofBiocideTreatmentsTwotypesofbiocideswereusedtocontrolthezebramusselwithintheCookNuclearPlant.Chlorineassodiumhydrochlorite,presentlypermittedunderthefacility'sNationalPollutantDischargeEliminationSystemPermit,wasinjectedintoallsystemsthroughouttheperiodofthisproject.Chlorinewasinjectedcontinuouslyfor2hrsduringeach24-hrperiod.Basedontheobservations,'hiswasnoteffective.Clam-Trol,CT-1,aproprietarymolluscicide,wasaddedasa12-hrtreatmenton16September.Substratesexaminedon22Septemberindicated>90%mortality.Thiseffectivetreatmentwas,however,shortlived;threeweekslater,peaksettlementoccurredintheforebay.~3.4BEACHWALKSAMPLINGTwolocationswereexaminedaspartofthebeachwalksamplingeffort.Thefirstlocationwas'hebeachadjacenttotheCookNuclearPlant.Becausethereisminimalhardsubstratepresentonthisbeach,theexaminationfocusedonsearchingforlooseshells.Thesecond3-3Lawler,Matushy&SkellyEngineers locationwasanareaofriprapalongthesouthsideofthesouthjettyatthemouthoftheSt.JosephRiverinSt.Joseph,Michigan.On23Julythebeachneartheplantwasexamined.Numerousclumpedandsingledeadzebramusseladultsandshellfragmentswerefoundalongthestormwashline.ExaminationalongthesouthjettyinSt.Josephalsorevealedbeach-washeddeadadultsandshells.Thewalkswererepeatedon22Septemberand10NovemberwithsimilarGndings.3.5INSPECTIONSAMPLEANALYSESTwoinspectionsampleswerecollectedbyplantpersonnelandshippedtoLMSforanalysis.ResultsareshowninTable3-3.3.6RANDOMSAMPLEANALYSESAtestwasconductedfromJuly17,1992toSeptember8,1992onseveralcoatingsthataremarketedasantifoulingcoatings.Metalcouponswithvariouscoatingswereplacedintheintakeforebayforthetestperiod,retrieved,andthesettlementrateevaluated.Thecompanyisreviewingthesedataandtheresultsfromotherresearchoncoatingstodeterminetheusefulnessofantifoulingcoatingonintakestructuressuchastrashracksandtravelingscreenassemblies.3.7WATERQUALHTMONITORINGWatertemperaturesandpHwererecordedduringeachwhole-waterandartiGcialsubstratesamplingperiod.Valuesrecordedduringthecollectionofwhole-watersamplesarepresentedinTable3-1.ThosevaluesrecordedduringthepostveligersettlementcollectionsareshowninTable34.Lawler,Matushy8cSkellyEngineers TABLE3-3INSPECTIONSAMPLEANALYSESDonaldC.CookNuclearPlantJulyandSeptember1992DATESITEDESCRIPTIONRESULTS7JulyTravelingScreenBay1-2Temp:18.8'CpH:8.1Adults(8+mm)Juveniles(3-8mm)ShellFragments216Abundant30SeptemberNorthSideCenterIntakeCrib-LakeBottomTemp:12.2'CpH:8.1Adults(8+mm)Juveniles(3-8mm)ShellFragmentsSmallSnails1730 TABLE34TEMPERATUREANDpHVALUES,POSTVELIGERSEITLEMENTCOLLECTIONSDonaldC.CookNuclearPlantJuly-December1992DATEFOREBAYpH'CpHoCNES%pH'C28July11August25August8September22September6October20October0NovemberDecember22December8.28.58.17.98.1aa8.08.08.018.221.322.021515.0aa10.47.23.78.18.78.28.18.28.18.18.08.18.018.722.222.922.516.714.612.51138.5437.98.78.18.18.28.18.18.08.18.022.922.322.721.918215.112.71158.75.7'Notavailablefromplantpersonnel.

CHAPTER4DISCUSSIONOFRESULTS4.1CIRCULATINGANDSERVICEWHOLE-WATERSAMPLINGVeligerabundancedatapresentedinTable3-1mustbeviewedwithcaution.Themanymechanicalproblemsencounteredsamplingtheforebaygreatlyinfluencedtheresults.Eventhoughthedatareportedfor11and14Augustrepresent8-ratherthan24-hrsamples,theseresults,whenextrapolatedtoa24-hrperiod,maybethemostrepresentativeoftheconcentrationofveligersintheforebayduringthefour-weekperiod.TheseforebaydatamayreflectthebeginningofthespawningpeakthatresultedinpeaksettlementduringSeptemberthroughouttheregion(reportedbynumerousinvestigatorsduringtheThirdInternationalZebraMusselConference,Toronto,February1993).Comparisonoftheextrapolatedforebayveligerconcentrationstotheveligerconcentrationsreportedfortheservicewatersystemson11and14Augustsuggeststhatforebayandservicewaterconcentrationsweresimilar.Basedonthiscomparison,concentrationsofveligersintheforebaymayhavebeensimilartothosereportedfortheservicewatersystemsontheearliersamplingdates.whenmechanicalproblemsoccurredwithforebaysampling.'.2ARTIFICIALSUBSTRATESAMPLING4.2.1ForebayIntheforebay,postveligersettlementwaslowuntilSeptember,withtheexceptionofthe.centralandnorthlocationson28July.ThesehigherconcentrationsmostlikelyreflectaspawningspatethatoccurredduringtheflrsthalfofJuly,beforethewhole-watermonitoringprogramwasinitiated.ThehigherconcentrationsreportedforSeptemberfollowthetrendreportedbynumerousotherinvestigatorsworkinginthesouthernLakeMichiganregion(ThirdInternationalZebraMusselConference).Lawler,Matusky&SkellyEngineers Thehighestconcentrationsrecordedateachlocationintheforebayoccurredon6October,approximatelythreeweeksaftertheClam-Troltreatment.Whilereasonsforthehighsettlementarenotknownatthistime,thisphenomenonhasbeenobservedinpreviousyears.Thesecondarypeakofsettlementrecordedatthecentralandnorthlocationson10Novemberreflectsthetranslocationofjuvenilesratherthansettlingofanewcohortduringthesamplingperiod.ThistranslocationcontinuedatreducedratesuntiltheendofthesamplingprograminDecember.4.2.2ServiceWaterSystemsSettlementoccurredthroughoutthesamplingseasonontheartificialsubstratesplacedintheNESWandESWsystems.Duringtheperiodcoveringthesetsmadeon28Julythroughthosecollectedon8September,theconcentrationsintheservicewatersystembiomonitorsexceededtheconcentrationsreportedintheforebay.Ataminimum,thisindicatesthatthechlorineinjectionthatoccurredupstreamofthebiomonitorswasineffectiveatpreventingsettling.Thisismostlikelyattributabletothe2-hrcontinuousinjectionduringeach24-hrperiodratherthanintermittentinjectionsthroughouteachday.Asecondconfoundingfactorwasthelowflow,upfiowdesignofthebiomonitors.Thisdesignwasamenabletoeasilycloggingandmaynothaveaccuratelyrepresentedtheactualflowconditionsinthesystemsatthemonitoringlocations,i.e.highvelocitiesinservicewaterpipes.Takentogether,thesetwofactorscontributedtothehighconcentrations.4.3BEACHWALKSBeachwalkinspectionsinthevicinityoftheplantandSt.Joseph'sharborrevealednoindicationoflive,attachedadultzebramusselsintheseareas.Observationsmadeneartheplantrevealedthatalackofsuitablesubstratewasavailableforzebramusselattachment.Numbersofdeadordetachedshellsinthedriftlinewereobservedinbothlocations.Thesehadwashedonshoreduringstormevents.Lawler,Matusky4SkellyEngineers 4.4WATERQUALITYMONITORINGWatertemperaturesintheforebayfollowedexpectedseasonaltrends.TemperaturesrecordedattheNESWandESWstationswereslightlyhigherthanthosereportedfortheforebaywithNESWtemperaturesbeingthehighest.ValuesreportedforpHindicatethatpHgenerallyrangedbetween7.9and8.2.Exceptionsoccurredon4and11AugustwhenrecordedpHvalueswerebetween8.4and8.7.Allthesevaluesarebasic,suggestingthatwaterconditionsareconducivetozebramussellifehistorysuccess.Actualwaterconcentrationsofcalciumwouldberequiredtoverifythiscondition.4.5RECOMMENDATIONSBasedonobservationsmadeduringthecourseofthisprogram,severalrecommendationsarebeingpresentedtoeliminatecertainproblemsandtoacquireamorecompletedatabase.Theseincludethefollowing:~Platesamplersratherthanslidesamplersarerecommendedfortheforebaystations.~In-lineflowmetersarerecommendedforallbioboxinstallations.Thiswilleliminateinaccuratefiowsbeingestimatedwhencloggingorothermechanicalproblemsprematurelyendthesampling.~Commerciallyconstructedbioboxesshouldbeusedforin-plantservicewatersystemsampling.Theseshouldbelocatedinareaswherepipelineflowisslowenoughtopermitpostveligersettling.~Whole-watersamplingshouldbeinitiatedduringtheearlypartofMayorwhenforebaytemperaturesare10'CandcontinuetoSeptember.AccordingtoEllenMarsden(pers.commun.),portionsofsouthernLakeMichiganwerereportedtohaveveligerdensitiesofapproximately30,000/m3bymid-May1992.Thisisimportanttomakedecisionsregardinginitiationofpreventivecontrolprograms.~Postveligersettlementsamplingneedstobeconductedfrommid-MaythroughDecemberataminimum.'I%iswillallowmonitoringofsettlementtimesandpreventativecontrolsuccesswithintheservicewaterorothersystems.Lawler,Matnsky4SkellyEngineers APPENDIXAEXPERIMENTALCOATINGSTESTDonaldC.CookNuclearPlantForebay17July-8September1992NAMEJUVENILEINFESTATIONPOSTVELIGERSETTLEMENT(Norm~)Rhino-texturedredRhino-greymeshRhino-greytrianglePorterHKA800Sys2000Epotech2000DowEnvelonWisconsinC-793PorterMultiEasy-OnZebraWaxPlasticBarGrillNoneLightNoneNoneNoneHeavyMediumLightLightNoneLight1,5991,59912,799none3,733-5,33334,1335,866

APPENDIXVANNUALREPORT'ADIOLOGICALENVIRONMENTALMONITORINGPROGRAM1992

DONALDC.COOKNUCLEARPLANTUNITS1&2OPERATIONALRADIOLOGICALENVIRONMENTALMONITORINGPROGRAM1992ANNUALREPORTJANUARY1toDECEMBER31,1992PreparedbyIndianaMichiganPowerCompanyaxldTeledyneIsotopesApril15,1993 TABLEFENSECTINTITLEPAGEuInmaryo~~~~~~~~~o~o~~oo~o~o~~~~o~o~~~~oeoooooooooooooo1SIntroductionoooo~oooo~~oo~~o~oo~o~oo~oo~o~~~oo~~~o~~o~~o~o3I.II.SamplingandAnalysisProgram..............................5III.SuIIImaryandDiscussionof1992AnalyticalResults...........18A.AirborneParticulates................................19AirborneIodine....................................21EC.DirectRadiation-TLDs..............................22SurfaceWater......................................22D.EoG03und/WCIIWat5oeo~ee~oooo~oo~oooooooooo~eo~~~~~o24DrinkingWater.....................................28F.G.Sediment..................ooooooeeo~ooooo~o~oo~o28~Milk~ooooo~ooo~oeooo~o~~~oo~~o~o~ooo~ooo~~~~~~~~~~H30IHShe~oo~ooeeo~oooooo~e~~ooo~~eoo~~eoo~~eooooooe~~o31FoodProducts......................................31J.Conclusions..............................................32IV.References..............................................36V.

TABLEOFCONTENTS{Cont)A~PPENDIEAPPENDIXA-RadiologicalEnvironmentalMonitoring.................38ProgramSummary-1992APPENDIXB-DataTables........................................43APPENDIXC-AnalyticalProceduresSynopsis........................71APPENDIXD-SuznmazyofEPAInterlaboratoryComparisons...........87APPENDIXE-REMPSamplingandAnalyticalExceptions.............117APPENDIXF-LandUseCensus...................................120APPENDIXG-SummaryofthePreoperationalRadiological............127MonitoringProgramAPPENDIXH-SummaxyoftheREMPQualityControlProgram........131APPENDIXI-SummaryoftheSpikeandBlankSampleProgram.......133APPENDIXJ-TLDQualityControlProgram.........................146 TABLEOFCONTENTS(Cont)LISTFFIOnsiteK)Locationso~o~o~~o~~o~o~o~~oooo~~oo~ooso~o~~o~~o11l.2.Onsite-GroundwaterWells..................................12Onsite-AirStations.o~~o~oo~ooo~~o~oo~~o~o~~ooo~o~o~~~~~134,Onsite-SteamGeneratorGroundwaterWells................145.Air,WellandLakeWaterLocations............................15LDLocations00000100\0~0~~0~1010t~11~10F000T000~~~~~00~~~~167.FishLocations...............oo~ooooo~~~~~~o~~178.MilkAnimalSurvey'Ihble..............................1239.ResidentalLandUseSurveyTable............................12410.MilkFarmSurveyMap.....................................125ResidentialSurveyMap...................................126LISTOFTRENDINGGRAPHSAverageMonthlyGrossBetainAirParticulates..................202.DirectRadiation-QuarterlyTLD's.............................233.TritiuminGroundwater.....................................254TritiuminDrinkingWater...................................29EPACrossCheckProgram...~o~~~~~~o~~~o~o~~~~~~~~~o~~~926.QualityControlTLDs.....ooooooooeooo~~~~~oo~~~oo~~~~~o148 LISTOFTABLESTABLETITLEPAEB-lConcentrationsofGrossBetaEmittersinWeekly...................44.AirborneParticulatesB-2ConcentrationsofGama'mittersinQuarterly....................48CompositesofAirborneParticulateSamplesB-3ConcentrationsofIodine-131inWeeklyAirCartridge...............50SamplesB-4DirectRadiationMeasurements-QuarterlyTLDResults.............54B-5ConcentrationsofIodine,TritiumandGammaEmitters.............55inSurfaceWatertB-6ConcentrationsofTritiumandGammaEmittersin.................58QuarterlyGroundwaterB-7ConcentrationsofGrossBeta,Iodine,Tritiumand..................60GammaEmittersinDrinkingWaterB-8ConcentrationsofGammaEmittersinSediment...................62B-9ConcentrationsofIodineandGammaEmittersinMilk..............63B-10ConcentrationsofGammaEmittersinFish........................67B-11ConcentrationsofGammaEmittersinFood/Vegetation.............68B--127giC(QLLDsAchicvCdooooooooo~~oooooooo~o~~~ooo~ooo~oooooo~oo69 SUMMARY INDIANAMICHIGANPOWERCOMPANYDOITED)C.COOKPOWERNUCLF~PLA'NTRADILGIALENVIRONMENTALMNITORINPRGRAMISUMMARYThisreportsummarizesthecollectionandanalysisofvariousenvironmentalsamplemediain1992fortheRadiologicalEnvironmen-talMonitoringProgramfortheDonaldC.CookNuclearPlant.Thevariousanalysesofmostsamplemediasuggestthattherewasnodiscernableimpactofthenuclearplantontheenvironment.Theanalysisofairparticulatefilters,charcoalcartridges,directradiationbythermoluminescentdosimeters,fish,water,milkandsedimentsfromLakeMichigan,drinkingwater,andfoodproducts,eitherdidnotdetectanyradioactivityormeasuredonlynaturallyoccurringradionuclidesatnormalbackgroundlevels.Tritium,measuredatlowlevelsinon-sitewells,appearstobetheonlyradionuclideattributabletotheplantoperations.However,theassociatedgroundwaterdoesnotprovideadirectdosepathwaytoman.

I.INTRODUCTION

~INTRDTINTheDonaldC.CookNuclearPlant'sRadiologicalEnvironmentalMonitoringProgram(REMP)isconductedincompliancewithNRCRegulatoryGuide1.21and4.1,licensingcommitments,andTechnicalSpecifications.TheREMPwasdevelopedinaccordancewiththeNRCRadiologicalAssessmentBranchTechnicalPosition(BTP),Rev.I,November1979.AsynopsisofthesamplingprogramandmapscanbefoundinSectionII,SamplingandAnalysisProgram.ThisreportrepresentstheAnnualEnvironmentalOperatingReportforUnits1and2oftheDonaldC.CookNuclearPlantfortheoperatingperiodfromJanuary1,1992throughDecember31,1992.,A.TheDonaldC.CookNuclearPlantofIndianaMichiganPowerCompanyislocatedonthesoutheasternshoreofLakeMichiganapproximatelyonemilenorthwestofBridgman,Michigan.Theplantconsistsoftwopressurizedwaterreactors,Unit1,1030MWEandUnit2.1100hGVE.Unit1achievedinitialcriticalityonJanuary18,1975andUnit-2achievedinitialcriticalityonMarch10,1978.BObjectivesTheobjectivesoftheoperationalradiologicalenvironmentalmonitoringprogramare:l.Identifyandmeasureradiationandradioactivityintheplantenvironsforthecalculationofpotentialdosetothepopulation.2.Verifytheeffectivenessofin-plantmeasuresusedforcontrollingthereleaseofradioactivematerials.3.Providereasonableassurancethatthepredicteddoses,basedoneQluentdata,havenotbeensubstantiallyunderestimatedandareconsistentwithapplicablestandards.i4.ComplywithregulatoryrequirementsandStationTechnicalSpecificationsandproviderecordstodocumentcompliance.4 II.SAMPLINGANDANALYSISPROGRAM II.AMPLINANDANALYIPRRAMTable1sunUnarizesthesamplingandanalysisprogramfortheDonaldC.CookNuclearPlantfor1992.Foreachsamplemedium,thetableliststhesamplelocations,includingdistanceanddirectionfromthecenterofthetwounits,andthestationidentiQcation.Thestationidentificationsformanyofthesamplinglocationsareshownonthemaps,Figures1,2,and3.Alsoforeachsamplemediumthesamplecollectionfrequency,typeofanalysis,andfrequencyofanalysisarelisted.

TABLE1DONALDC.COOKNUCLEARPLANT-1992RADIOLOGICALSAMPLINGSl'ATIONSDISTANCEANDDIRECTIONFROMPLANTAXISLocationStationDirectionDereesColleconFreuenEnvironmental's)ONS-1ONS-2ONS-3ONS-4ONS-5ONS-6ONS-7ONS-8ONS-9ONS-10ONS-11ONS-12(A-I)(A-2)(A-3)(A-4)(A-5)(A-6)(A-7)(A-8)(A-9)(A-10)(A-11)(A-12)1945A.2338A2407A1852A.1895A.1917A.2103IL2208lt.1368A.1390A.1969A.2292A.18048090'1801890210036o820149'27'14630NewBuffaloSouthBendDowagiacColomaIntersectionofRedArrowHwy.&MarquetteWoodsRd,Pole¹B294-44StevensvilleSubstationPole¹B296-13Pole¹B350-72IntersectionofShawnee&Cleveland,Pole¹B387-32SnowRd.,EastofHoldenRd.,¹B426-1BridgmanSubstationCaliforniaRd.,Pole¹B424-20RigglesRd..PoleB369-214IntersectionofRedArrowHwy.,&HildebrantRd.,Pole¹B422-152IntersectionofSnowRd.&BaldwinRd.,Pole¹B423-12(NBF)(SBN)(DOW)(COL)(OFS-1)(OFS-2)(OFS-3)(OFS-4)(OFS-5)(OFS-6)(OFS-7)(OFS-8)(OFS-9)(OFS-10)(OFS-11)16.024.024.318.94.53.65.14.14.24.92.54.04.43.83.8mlmimlmimimimlmimimimimimlmimiSSWSEENENNENENENEEESESESSESESQuarterlyDirectRadiation/Quarterly TABt.lDONALDC.COOKPLANT-1992RADIOLOGICALSAMPLINGSTA'11ONSDISI'ANCEANDDIRECTIONFROMPLANTAXISLocationStationDistanceDirectionDereesCollectionuenIs/nAirCharcoal/ParticulatesONS-IONS-2ONS-3ONS-4ONS-5ONS-6NewBullaloSouthBendDowagiacColoma(A-I)(A-2)(A-3)(A-4)(A-5)(A-6)(NBF)(SBN)(DOW)(COL)1945A.2338ft.2407A.1852A.1895A.1917A.16.0ml24.0ml24.3ml18.9mlSSWSEENENNE18448'0'18'89'104WeeklyGrossBeta/Weekly1-131/WeeklyGammaIsotopic/QuarterlyCompositeGroundwaterOnsiteOnslteOnsiteOnsiteOnsiteOnslteOnslteOnslteOnsiteOnslteOnslteOnslteOnslte(W-1)(W-2)(W-3)(W-4)(W-5)(W-6)(W-7)(W-8)(W-9)(W-10)(W-11)(W-12)(W-13)1969A.2292A.3279A.418A.404A.424A.1895'A.1279A.1447A.4216A.3206A.2631A.2152A.11'3'074301'90'734189453'241294153'6241824QuarterlyGammaIsotopic/QuarterlyTHtium/QuarterlyNonTechnical8cificationRelatedWellsSteamGeneratorStorageFacllltySteamGeneratorStorageFacilitySteamGeneratorStorageFacilitySteamGeneratorStorageFacility(SGRP-1)(SGRP-2)(SGRP-4)(SGRP-5)0.8mi0.7mi0.7mi0.7mi95'24934924QuarterlyGrossBeta/MonthlyGrossAlpha/MonthlyGammaIsotopic/Monthly TABLE1(Cont.)DONALDC.COOKNUCLEARPLANT-1892RADIOLOGICALSAMPLINGSTA'HONSDISTANCEANDDIRECHONFROMPLANTAXISDistanceDIrectionDereesCoeconlIenWaterSt.JosephPublicIntakeLakeTownshipPublicIntakeStaUonSrufaceWater(STJ)(LTW)9.0ml0.4mlNEGrossBeta/14DayCompostteGammaIsotopic/14DayComposite1-131/14DayCompositeTrtUum/QuarterlyCompositeCondenserClrculaUngWaterIntakeLakeMichiganShorelineLakeMichiganShorelineLakeMichiganShorelineLakeMichiganShorelineLlL-2~L-3I4L-5Intake0.3ml0.2ml0.1ml0.1mlSNSNGammaIsotopic/MonthlyComposite'MUum/QuarterlyCompositeSedimentLakeMichiganShorelineLakeMichiganShorelineLakeMichiganShorelineLakeMichiganShorelineL-2L-3I4I50.3ml0.2ml0.1ml0.1mlSNSNSemi-annuallyGammaIsotopic/Semt-AnnuallyRHIk-IndicatorTotzkeFarmSchulerFarmWannblenFarmZelmerFarmLomzackFarmFreehlingFarmBarodaBarodaThreeOaksBridgmanGalienBucharmmTotzkeSchulerWarmblenZelmerLozmackFreehllng5.1ml4.1ml7.7ml4.8ml9.5mi7.0mlENESESSSESSESSE14Days1-131SampleMIIk-BacormdWyantFarmDowagaicLlvlneFarmLaPorteWyant20.7miLivlnghouse20.0miESOnceevery14DaysGammaIsotopic/Sample1-131/Sample TABt.)DONALDC,COOKNEARPLANT-1992RADIOLOGICALSAMPLINGSTA'11ONSDISTANCEANDDIRECTIONFROMPLANTAXlSLocationStationDistanceDirectionDeeesCollecUonuenLakeMichiganLakeMichiganLakeMichiganLakeMlchlganONS-NONS-SOFS-NOFSN.3ml.4ml3.5ml5.0mlNSNS2/yearGammaIsotopic2/yearGra/BroadleafNearestsampletoPlantlnhighestD/QlandsectorSectorJAtUmeofharvestGammaIsotopicatUmeofharvest.GraInalandsectorcontaininggrapesapproximately20milesfromthePlantand180'romthesectorwiththehighestD/Q.Approximately20milesfromthePlantSectorJSectorBAtUmeofharvestAttimeofharvestGammaIsotopicatUmeofharvest.GammaIsotopicatUmeofharvest.CompositesamplesofDrinldngandSurfacewatershallbecollectedatleastdally.ParUculatesampleAltersshouldbeanalyzedforgrossbetaacUvity24ormorehoursfollowingfilterremovaLThiswillallowforradonandthorondaughterdecay.IfgrossbetaacUvityinairorwaterisgreaterthan10timestheyearlymeanofcontrolsamplesforanymedium.gammaisotopicanalysisshouldbeperformedontheindividualsamples.Pleasenotethefollowingdefenitions:Weeklyatleastonceeveryseven(7)daysMonthly-atleastonceevery(31)daysQuarterly-atleastonceeveryninety-two(92)daysSemi-annually-atleastonceeveryonehundredeighty-four(184)days I.EGENDOlisilcTLDLoc:>tioiisAIThroughAI2TLDA11TLDA1I4gjys'Og00'O00IIU]gn~-/TLDA10TLDA5TLDA6TLDASfpTLDA9>lyTLDTLDA3~PSA4~'~~><op/ffff WELL1HOWELLSV/ELL2WELL4NWEL.L51WEL6'~~+1ELL8LWWELLLAKETNfP/WELQ/,-WEIL11fWELL7WELL1~WELL1,,V/ELL12dOgq(/Q0P,~LEGNDOnsiteGroitt>~lwaterWells%-1throughW-13

~Ci~QOnsiteAirStationsAIThroughA6AIRAl0pOgtDC.g~5nAIRA2pog-lSS~c!)AIRA5AIRA6LD.I0P+8QfEll~g~m~~a0AIPA3il)~.q(AigA4W/<<~~p.vP~ll

-0o~~OO~p~08SI.-RPM/ELI2SGRPMfELL5-SGRPLVEIL1/////1//Is-SGRPW4(~/oN()c~Kei/LEGENDSteamGeneratorGroundwaterWellsSGRPI,SGRP2,SGRP4andSGRP5 Figure5AAir,TLDStationsPLLakeWaterSampleStations(rntakes)MMilkSampleStations20MILESp<WatervIietA.9rBENTONHARBORS/ST.JPH.IS51StevensvIeD.C.COOKPLANTVfEauClaireIDOWAGIACNewBuffalBridgmanMV512BerrienSpringsNILESjIle41///&1MICHIGAN,'.CITY;;::<~="'.Vs'0MICHIGANINDIANANewCarlisle20IstD2SOUTHBENDIO20SCALEOFMILES15 0~-K%+A@ggCIJ~~II-(I~O~]I=lli,)Fi')r.I~1j.Is~4t~/J/~'k4,sa.al~$S//\

Figure7SAMPLINGLOCATIONSFISHCOLLECTEDFORRADIOLOGICALANALYSISOffsfreNorthOnsfteNorthOnsfteSouthINOOQLNdafsfteSouthpy/0gy0sQ5ffOW~Nffwesfasses17 III.SU5HCARYANDDISCUSSIONOF1992ANALYTICALRESULTS MMARYANDDISCSINF192ANALYTICALAdiscussionofthedatafromtheradiologicalanalysesofenvironmentalmediacollectedduringthereportperiodisprovidedinthissection.Analysesofsamplesfor1992wereanalyzedbyTeledyneIsotopes,Inc.(TI)inWestwood,NewJersey.TheproceduresandspecificationsfollowedatTeledyneIsotopesareinaccordancewiththeTeledyneIsotopesQualityAssuranceManualandareexplainedintheTeledyneIsotopesAnalyticalProcedures.AsynopsisofanalyticalproceduresusedfortheenvironmentalsamplesareprovedinAppendixC.InadditiontointernalqualitycontrolmeasuresperformedbyTeledyne,thelaboratoryalsoparticipatesintheEnvironmentalProtectionAgency'sInterlaboratoryComparisonProgram.Participationinthisprogramensuresthatindependentchecksontheprecisionandaccuracyofthemeasurementsofradioactivematerialinenvironmentalsamplesareperformed.TheresultsoftheEPAInterlaboratoryComparisonareprovidedinAppendixD.Radiologicalanalysesofenvironmentalmediacharacteristicallyapproachandfrequentlyfallbelowthedetectionlimitsofstate-of-the-artmeasurementmethods.TeledyneIsotopesanalyticalmethodsmeetorexceedtheLowerLimitofDetection(LLD)requirementsgiveninTable2oftheUSNRCBranchTechnicalPositionofRadiologicalMonitoring,Revision1,November1979.Thefollowingisadiscussionandsummaryoftheresultsoftheenvironmentalmeasurementsperformedduringthereportingperiod.ComparisonismadewherepossiblewithradioactivityconcentrationsmeasuredinthepreoperationalperiodofAugust1971totheinitialcriticalityofUnit1onJanuary12,1975.AbriefsummaryofthepreoperationalprogramisfoundinAppendixG.A.AirbrnPiulAirborneparticulatesamplesarecollectedwithaconstantflowoillesspumpat2.0CFMusinga47mmparticulatefilter.ResultsofgrossbetaactivitiesarepresentedinTableB-1.Themeasurementof..

AVERAGEMONTHLYGROSSBETAINAIRPARTICULATES~~~~~~~~'1I-',-,.;.7/::.'P,;i,92'---a---Controls7/~'.'".":;1/;.."':'"7l.'.1/::."',7/.:..:-',;;:;".:-.~.,'..".;-',,>>,:89,;-'.:.':.89..',".':,i'.',90:.'.~:.'.'.:.-,90,"'.~;,.:'.91'.:,-.91.--+-Indicators'4 thegrossbetaactivityontheweeklyairparticulatelitersisagoodindicationofthelevelsofnaturalandormanmaderadioactivityintheenvironment.Theaveragegrossbetaconcentrationofthesixindicatorlocationswas0.017pCi/m~witharangeofindividualvaluesbetween0.003and0.035.pCi/m~.Theaveragegrossbetaconcentrationofthefourcontrollocationsw'as0.017pCi/m>witharangebetween0.007and0.035pCi/m.InTrendingGraph1themonthlyaveragegrossbetaconcentrationsfortheindicatorlocationsandforthecontrollocationsareplotted.Thegrossbetaconcentrationsinairparticulatelitersin1992werelowerthanattheendofthepreoperationalperiodwhentheeffectsofrecentatmosphericnucleartestswerebeingdetected.Airparticulatefilterswerecompositedbylocationonaquarterlybasisandwereanalyzedbygammarayspectroscopy.'Beryllium-7whichisproducedcontinuouslyintheupperatmospherebycosmicradiationwasmeasuredinallfortysamples.Theaverageconcentrationforthecontrollocationswas0.108pCi/m>andthevaluesrangedfrom0.088to0.177pCi/m~.Theaverageconcentrationfortheindicatorlocationswas0.108pCi/m>witharangeof0.085to0.153pCi/m>.Thesevaluesaretypicalofberyllium-7measuredatvariouslocationsthroughouttheUnitedStates.Naturallyoccurringpotassium-40,probablyfromdust,wasmeasuredinsixofthetwenty-fourindicatorquarterlycompositeswithanaverageconcentrationof0.006pCi/m~andarangeof0.003to0.011pCi/m~.Potassium-40wasmeasuredinoneofthesixteencontrolquarterlycompositeswithaconcentrationof0.008pCi/m>.Noothergammaemittingradioactivitywasdetected.B.AirborneIodineAirborneparticulatesamplesarecollectedwithaconstantflowoillesspumpat2.0CFMusinga47mmparticulatefilter.Teda-3Bcharcoalcartridgesareinstalleddownstreamoftheparticulatefiltersandareusedtocollectairborneradioiodine.TheresultsoftheweeklyanalysisofthecharcoalcartridgesarepresentedinTable'B-3.All resultswerebelowthelowerlevelofdetectionwithnopositiveactivitydetected.DirRiaon-ThrmluminnDimrThermoluminescentdosimeters(TLDs)measureexternalradiationexposurefromseveralsourcesincludingnaturallyoccurringradionuclidesintheairandsoQ,radiationfromcosmicorigin,falloutfromatomicweaponstesting,potentialradioactiveairbornereleasesfromthepowerstationanddirectradiationfromthepowerstation.TheTLDsrecordexposurefromallofthesepotentialsources.TheTLDsaredeployedquarterlyat27locationsintheenvironssurroundingtheD.C.CookNuclearPlant.Theaveragevalueofthefourareasofeachdosimeter(calibratedindividuallyaftereachfieldexposureperiodforresponsetoaknownexposureandfortransitexposure)arepresentedinTableB-4.Thoseexposureratesarequitetypicalofobservedratesatmanyotherlocationsinthecountry.Theaverageannualmeasurementforthecontrolsampleswas3.68mR/standardmonthwitharangeof3.3to4.4mR/standardmonth.Theannualaccumulationofindicatorsampleshadameasurementof3.94mR/standardmonthwitharangeof3.1to5.1mR/standard.month..The1992annualaverageintheenvironsoftheD.C.CookPlantisatthelowrangeoftheexposurerates(1.0to2.0mR/week)measuredduringthepreoperationalperiod;TheresultsoftheindicatorandcontrolTLDsareingoodagreementandareplottedinTrendingGraph2.SurfcWterOnelitersurfacewatersamplesfromtheintakeforebayandfromfourshorelinelocations,aQwithin0.3mileofthetworeactorswerecollectedandcompositeddailyoveramonthlyperiod.Thesampleswereanalyzedforiodine-131bytheradiochemicaltechniquedescribedonpage79.Noiodine-131wasdetected.Thequarterlycompositewasanalyzedfortritiumbygascounting,describedonpage73,duringtheQrstandsecondquarterswhenthismethodwas22 DIRECTRADIATION-QUARTERLYTLDRESULTSh'I'~~~~'Ly+~0~6,,"=":.:::-'-.1h'I\i,'b1$0:-,'4$d",'7)$0,"::;30I00.'.'.'1$1.,"'.:.;',04$1;.;;",d7$1..'.;.,10$1:'=.1$2':.'/92--4TLDControlsTLDIndicators'II7/92"..10$2'.

discontinued.Thethirdandfourthquarterlycompositeswereanalyzedthebyliquidscintillationmethoddescribedonpage74.Naturallyoccurringpotassium-40wasmeasuredinthreesampleswithanaverageconcentrationof61.5pCi/literandarangeof55.9to68.0pCi/liter.Cesium-137wasmeasuredinonesamplewithanactivityof7.19pCi/liter.Tritiumwasdetectedin12ofthe20samplesanalyzedwithanaverageconcentrationof554pCi/literandarangeof170to1400pCi/liter,Thisishigherthanthe15measurementsin1991whichhadanaverageconcentrationof239pCi/liter.Duringthepreoperationalperiodtritiumwasmeasuredinsurfacewatersamplesatconcentrationsofapproximately400pCi/liter.Naturallyoccurringgammaemittingisotopesweredetectedusinggammarayspectroscopy.GroundwatrWatersamplesarecollectedquarterlyfromthirteenwells,allwithin3300feetofthereactors.First,astaticwaterelevationisdeterminedandthreewellborevolumesarepurgedfromthewellusinganairdrivenbladderstylepump.Aonegallonsampleisthenobtained.Thesamplesareanalyzedforgammaemittersandtritium.TheresultsarepresentedinTableB-6.Naturallyoccurringpotassium-40wasmeasuredinfoursampleswithanaverageconcentrationof76.6pCi/literandarangeof39.1to161pCi/liter.Noothergammaemittingisotopesweredetected.ThegroundwaterwellsW-4,W-5,W-6,W-7,W-10,W-12andW-13hadmeasurabletritiumactivitythroughout1992.Tritiumwasmeasuredinthreeofthesixteensamplesatthelocationswithanaverageconcentrationof662pCi/literandarangeof120to1500pCi/liter.TheannualconcentrationsoftritiuminwellsW-1throughW-7areplottedfrominTrendingGraph3.Anadditionalsixwellswereaddedtotheprogramduring1992.Theresultsareplottedquarterlyfor1992inTrendingGraph3.Tritiumconcentrationingroundwaterwellsduringthepreoperationalperiodtypicallyaveraged400pCi/liter.24

't'-;,".-:;:.'..;",.:.':='-..-::Treriding'Graph:-3'-"'"TRITIUMINGROUNDNATERh!'!'t!SOOO..l-.';.'."'.,',.'4000:t'$000';.';::-".;;-:=;."::.*20tcb;~,,'..tt~t-".:.100hb:/~Oi'h.'*:;i..:::.;:t':,'.1980;."=1981'.1982:.'-..'988':1984-";.1986';.1988:.:.1987.1988':.1989.=-1990'1991-.'1992'

-3.(Cont.).TRITIUMINGROUNDNATER~:'.-$0000~\::;:;;.Sboo..'.0,,8-'.='-.':..=".'-.':-:-',.1'.',:.'-,'6000~'=-4000~U).~.':';,~",'::,'.'0000.-".':.:.1980'1581:-'!.',$982:,'1988':19S4'985.1986'19S71988'.)989.'":1990-1991)992Nell<Nell-5NeBWNell-7A 1'::--.:-.-'-.'.-.."'-'.'=':.::--.'.-;:...:-:.:.:.'=Trending'Graph-3(Cont.)'--...,-.,'RITIUMINGROUNDVfATER'"'"-""000~~.-c.'::"-='.4000':.-':;:8.'.::.:"*::.".;"".'.Q:~~-.~:r""-'.':2000'II*Ih'I~~hh,,~1082hWe1!4+-Well-9~Welh10~Nell-11~Nell-12Well-18 DailysamplesarecollectedattheintakeofthepurificationplantsforSt.JosephandLakeTownship.The500mldailysamplesateachlocationarecompositedandanalyzedforgrossbeta,iodine-131,andgammaemitters.Onaquarterlybasisthedailysamplesarecompositedandanalyzedfortritium.TheresultsofanalysesofdrinkingwatersamplesareshowninTableB-7.Grossbetaactivitywasmeasuredinalltwenty-sixsamplesfromtheLakeTownshipintakewithanaverageconcentrationof3.6pCi/literandarangefrom1.9to6.2pCi/liter.Grossbetaactivitywasmeasuredinalltwenty-sixsamples&'omtheSt.Josephintakewithanaverageconcentrationof3.7pCi/literandarangefrom2.6to5.1'pCi/liter.Nogammaemittingisotopesoriodine-131weredetected.TritiumwasmeasuredinoneofthefoursamplesfromLakeTownshipintakewithaconcentrationof150pCi/liter.TritiumwasmeasuredinonesamplesfromSt.Josephintakewithaconcentrationof180pCi/liter.TritiumindrinkingwaterisplottedinTrendingGraph4.Therewerenodrinkingwateranalysesperformedinthepreoperationalprogram.G.SedimentSedimentsamplesarecollectedsemiannuallyalongtheshorelineofLakeMichiganatthesamefourlocationsasthesurfacewatersamples.Twolitersoflakesedimentarecollectedusingasmalldredgeinanareacoveredparttimebywaveaction.Thesedimentsamplesareanalyzedbygammarayspectroscopy,theresultsofwhichareshowninTableB-8.InMayandNovemberonesamplewascollectedfromeachlocationL2,L3.L4andL5.Gammarayspectroscopydetectednaturallyoccurringpotassium-40andinallsamples.Theaveragepotassium-40concentrationwas5628pCi/kg(dryweight)witharangefrom4390to6470pCi/kg(dryweight).Thorium-228,alsonaturallyoccurringwasmeasuredinsevenofthe28

~<<'"':..:..:".:,:..;.;,.;:.'::,:,'::::;::::,':.:;::,'..;,'.';:":".-.:.;,",","..'.-:.'.TI'endingGiaph-.'4':,<<~,',<<'~,,~TRITIUMINDRINKINGWATER<<:.'.'".,-',.'-::-'.-;..O'-,",",";;","1060::'.','600,rr<<~~<<~p,~<<<<~<<<<~~<<<<<<<<~~~~g%<<rrr<<~i<<'6g,'-:-'.:.'-.'...'-.:,:,,:,01/89';.04/89'07/89'0/89.01$0':04/90:07$0.',10$0"01$1.04$1:,,10$11/92".,4$2.<<7/9210$2,.\~<<~<<W>>~<<~LakeTownshipSt.Joseph<<r~~=,i<<=<<

Thorium-228,alsonaturallyoccurringwasmeasuredinsevenoftheeightsampleswithanaverageconcentrationof130pCi/kg(dryweight)witharangefrom95.3to150pCi/kg(dryweight).Cesium-137,attributedtofalloutfrompreviousatmosphericnucleartests,wasnotdetectedduring1992.Allothergammaemitterswerebelowthelowerlimitsofdetection.MQksamplesofonegallonarecollectedfroma500gallonbulktankeveryfourteendaysfromsevenfarmslocatedbetween4.1milesand20.7milesfromthesite.Milksamplesarepreservedbyadding40gramspergallonofsodiumbisulfatewhenthesamplesarecollected.Thesamplesareanalyzedforiodine-131andforgammaemitters.TheresultsareshowninTableB-9.Iodine-131wasnotmeasuredinanyofthe175samplesanalyzed."Duringthepreoperationalperiodpotassium-40wasmeasuredinallsampleswitharangefrom520to2310pCi/liter,arangecomparabletothatin1992.Iodine-131wasmeasuredinfoursamplescollectedsoonafteranatmosphericnucleartestwithconcentrationsbetween0.2and0.9pCi/liter.Cesium-137wasmeasuredinnumeroussamplesafterthenucleartestwithconcentrationsbetween7and64pCi/liter.During1992theaveragepotassium-40concentrationforthecontrollocationsduringwas1347pCi/literwitharangeof1110to1890pCi/liter.Theindicatorlocationshadanaverageconcentrationof1379pCi/literandarangeof1020to1870.Therewerenodetectionsofiodine-131during1992.Cesium-137wasdetectedinonebackgroundsamplewithaconcentrationof9.34pCi/literandoneindicatorsamplewithaconcentrationof13.4pCi/liter.30 UsinggillnetsinapproximatelytwentyfeetofwaterinLakeMichigan,4.5poundsoffisharecollected2per/yearfromeachoffourlocations.Thesamplesarethenanalyzedbygammarayspectroscopy.1Naturallyoccurringpotassium-40wasmeasuredinallsampleswithanaverageconcentrationof3113pCi/kg(wetweight)andarangeof2340to4160pCi/kg(wetweight).Cesium-137wasmeasuredinoneoftheeightQshsampleswithaconcentrationof48.0pCi/kg(wetweight).J.FoodProductsFoodsamplesarecollectedannuallyatharvest,asnearthesite.boundaryaspossible.andapproximatelytwentymilesfromtheplant.Theyconsistof5poundsofgrapes,1poundofgrapeleavesand5poundsofbroadleaves.Naturallyoccurringpotassium-40wasmeasuredinalleightsampleswithanaverageconcentrationof2401pCi/kg(wetweight)andarangeof1630to3850pCi/kg(wetweight).Cosmogenicallyproducedberyllium-7wasmeasuredinsixoftheeightsampleswithanaverageconcentrationof1976pCi/kg(wetweight)andarangeof58.2to4030pCi/kg(wetweight).Cesium-137wasmeasuredintwosampleswithanaverageconcentrationof28.1pCi/kg(wetweight)andarangeof19.9to36.2pCi/kg(wetweight).31 IV.CONCLUSIONS32 IV.CttNGLIOIISTheresultsofthe1992RadiologicalEnvironmentalMonitoringProgramfortheDonaldC.CookNuclearPlanthavebeenpresented.Theresultswereasexpectedfornormalenvironmentalsamples.Naturallyoccurringradioactivitywasobservedinsamplemediaintheexpectedactivityranges.Occasionalsamplesofafewmediashowedthepresenceofman-madeisotopes.Thesehavebeendiscussedindividuallyinthetext.Observedactivitieswereatverylowconcentrationsandhadnosignificantdoseconsequence.Specificexamplesofsamplemediawithpositiveanalysisresultsarediscussedbelow.Airparticulategrossbetaconcentrationsofalltheindicatorlocationsfor1992appearstofollowthegrossbetaconcentrationsatthecontrollocations.Theconcentrationlevelsareactuallylowerthanduringthepreoperationalperiodwhentheinfluenceofatmosphericnucleartestswasbeingdetected.Gammaisotopicanalysisoftheparticulatesamplesidentifiedthegamma.emittingisotopesasnaturalproducts(beryllium-7andpotassium-40).Noman-madeactivitywasfoundintheparticulatemediaduring1992.Noiodine-131wasdetectedincharcoalfiltersin1992.Thermoluminescentdosimeters(TLDs)measureexternalgammaradiationfromnaturallyoccurringradionuclidesintheair.andsoil,radiation~fromcosmic'originandfalloutfromatmosphericnuclearweaponstesting,andradioactiveairbornereleasesanddirectradiationfromthepowerplant.TheaverageannualTLDresultswereatnormalbackgroundexposurelevels.SurfacewatersamplesarecollecteddailyfromtheintakeforebayandfourlocationsinLakeMichigan.Thesamplesareanalyzedquarterlyfortritium,andmonthlyforgammaemittingisotopes.Onlyonegammaemitter,cesium-137,wasdetectedinonesampleduring1992.Tritiumwasmeasuredandtheconcentrationswereatnormalbackgroundlevels.Groundwatersampleswerecollectedquarterlyatthirteenwells,allwithin3300feetofthereactors.Thethreewellswithin500feethad33 measurabletritiumwhichisattributedtotheoperationoftheplant.Thetritiumlevelsin1992comparewellwiththosemeasuredin1991.Thehighestconcentrationmeasuredin1992was1500pCi/literwhilethehighestconcentrationmeasuredduring1991was1700pCi/liter.Thetritiumlevelsingroundwaterhavebeenplottedforthelastdecadeandindicatedecreasinglevelsoftritium.Potassium-40,anaturallyoccurringnuclidewasobservedinfoursamplesduring1992.Noothergammaemittingisotopesweredetected.SamplesarecollecteddailyattheintakesofthedrinkingpurlQcationplantsforSt.JosephandLakeTownship.Samplescompositeddailyoveratwoweekperiodareanalyzedforiodine-131,grossbeta,andforgammaemittingisotopesandanalyzedquarterlyfortritium.Noiodine-131orgammaemittingisotopesweredetected.Grossbetawasmeasuredinallfifty-twosamplesatnormalbackgroundconcentrations.Tritiumwasmeasuredinfouroftheeightquarterlycompositesampleswithbackgroundlevelsthatwerelowerthanthosemeasuredduring1991.Sedimentsamplescanbeasensitiveindicatorofdischargesfromnuclearpowerstations.SedimentsamplesarecollectedsemiannuallyalongtheshorelineofLakeMichiganatfourlocationsincloseproximityofthereactors.Thesampleswereanalyzedbygammarayspectroscopyandonlynaturallyoccurringgammaemittersweredetected.ThereisnoevidenceofstationdischargesaffectingLakeMichigan,eitherinthesedimentsorinthewater,aspreviouslydiscussed.Milksampleswerecollectedeveryfourteendaysfromsevenfarmsuptoadistanceof20.7milesfromthesite.Thesamplesweremeasuredforiodine-131andforgammaemittingisotopes.AlthoughI-131wasmeasuredduring1989therewerenomeasurementsofiodine-131inmilkduring1992or1991.Potassium-40wasmeasuredinallmQksamplesatnormalbackgroundlevels.Cesium-137wasdetectedintwosamples.FishsamplescollectedinLakeMichiganinthevicinityofthenuclearplantwereanalyzedbygammarayspectroscopy.Theonlygammaemittingisotopemeasuredwascesium-137whichwasinaverylowconcentrationinonesample.

Foodproducts,consistingofgrapes,grapeleaves,andbroadleafvegetationwerecellectedandanalyzedbygammarayspectroscopy.Theonlygammaemittingisotopemeasuredwascesium-137.Theresultsoftheanalyseshavebeenpresented.BasedontheevidenceoftheRadiologicalEnvironmentalMonitoringProgramtheDonaldC.CookNuclearPlantisoperatingwithinregulatorylimits.TritiuminQveon-sitewellsappearstobetheonlyradionuclidewhichcanbedirectlycorrelatedwiththeplant.Howevertheassociatedgroundwaterdoesnotprovideadirectdosepathwaytoman.35 V.REFERENCES36 V.REFERENCESl.UnitedStatesNuclearRegulatoryCommission,RegulatoryGuide4.8"EnvironmentalTechnicalSpecificationsforNuclearPowerPlants",December1975.2.IndianaMichiganPowerCompany,D.C.CookTechnicalSpecifications,Units1and2.3.USNRCBranchTechnicalPosition,"AcceptableRadiologicalEnvironmentalMonitoringProgram".Rev.1,November1979.4.EberlineInstrumentCompany.IndianaMichiganPowerCompany,"D.C.CookNuclearPlantRadiologicalEnvironmentalMonitoringProgram-1974AnnualReport",May1975.5.DataTablesfrom1985-1988CEP-AEPSCAnnualRadiologicalEnvironmentalMonitoringProgramReports.6.UnitedStatesNuclearRegulatoryCommission,RegulatoryGuide1.4"ProgramsforMonitoringRadioactivityintheEnvironsofNuclearPowerPlants",April1975.7.UnitedStatesNuclearRegulatoryCommission,RegulatoryGuide1.21"Measuring,Evaluating,andReportingRadioactivityinSolidWastesandReleasesofRadioactiveMaterialsinLiquidandGaseousEffluentsfromLight-Water-CooledNuclearPowerPlants,April1974.37 APPENDIXARADIOLOGICALENVIRONMENTALMONITORINGPROGRAMSUMMARY38 RADIOLOGICALENVHtONMENTALMONITORINGPROGRAMSUMMARYINDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTDOCKETNO.6&816/NM16BERRIENCOUNTY'ANUARY1toDECEMBER31,1992MEDIUMORPATHWAYSAMPLEDIUNII'FMEASUREMENII'IIALNUMBEROFANALYSESPERFORMEDMEANla/b)RANGENAMEMEANDISI'ANCEANDDIRECIIONRANGECONIROLLOCATIONMEANRANGENONROUIINEREPORTEDMEASUREMENISAirIodine(pCl/m3)1-131631-(0/317)N/AN/A-(0/214)0AirborneGrossBeta531Particulates(Weekly)(IE-03pCl/m3)16.7(317/317)(2.9-35)SouthBend24.0mlSE17.3(54/54)(7.2-3216.6(214/214)(6.6-35)K-4040Gamma40Be-740107.8(24/24)(84.5-163)6.31(6/24)(3.16-10.7JDowaglac24.3mlENE117.9(4/4)(91.0-177)A-5Onslte1895(t.10.0(2/4)(9.21-10.7)108.4(16/16)(87.6-177J8.31(1/16)DirectRadiation(mR/StandardMonth)Gamma108DoseQuarterly3.94(92/92)(3.1-6.1)OFS-64.9miSE4.90(4/4)(4.8-5.1)3.68(16/16)(3.3-4.4)(a/b)Ratioofsampleswithdetectableactivitytototalnumberofsamplesanalyzed.

RADIOLOGICALENVlRONMEONITORINQPROGRAMSUMMARYINDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPIANTDOCKETNO.6&418/NM16BERRIENCOUNIYJANUARYItoDECEMBER31,1992MEDIUMORPATHWAY'IOTALNUMBERSAMPLEDOFANALYSESIUNIl'OFMEASUREMEmlPERFORMEDMEANIa/b)RANGENAMEMEANDISI'ANCEANDDIRECIIONRANGECONIROLIDCATIONMEANRANGENONROVIINEREPORfEDMEASUREMENISSurfaceWater(pCI/liter)Cs-137H-320Gamma65K-406561.5(3/65)(55.9-68,0)7.19(1/65)554(12/20)(170-1400)I50.1miN62.0(2/13)(55.9-68.0)L-5O.lmiN670(2/4)(340-1000)L-IIntakeForebay7.19(l/13)-(0/0)-(0/0)-(0/0)Groundwater(pCI/liter)Gamma51K-40H-35176.6(4/51(39.1-161)666(21/51)(120-1500)Well10Well7161(1/4)1148(4/4)(840-1500)-(0/0)-(0/0)DrlnlrlngWaterGrossBeta52(pCI/liter)3.60(52/52)(1.9-6.2)SIJ9.0miNE3.65(26/26)-(0/0)(2.6-5.1)1-13152-(0/52)N/AN/A-(0/0)Gamma52H-3-(0/52)165(2/8)(150-180)N/AN/ASIJ9.0miNE180(1/4)-(0/0)-(0/0)(a/b)RauoofsampleswithdetectableacUvitytototalnumberofsamplesanalyzed.

RADIOLOGICALENVIRONMENTALMONITORINGPROGRAMSUMMARYINDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTDOCKETNO.60-316/60-316BERRIENCOUNTYJANUARY1toDECEMBER31,1992MEDIUMORPATHWAYSAMPLEDIUNITOFMEASUREMEÃQ1QTALNUMBEROFANALYSESPERFORMEDMEANIa/b)RANGENAMEMEANDISI'ANCEANDDIRECTIONRANGECONIROLLOCATIONMEANRANGENONROUTINEREPORIEDMEASUREMENISSediment(pCI/kgdry)Gamma8K-408Ra-22685628(8/8)(4390-6470).506(1/8)L-20.3mtSL-50.1mlN5965(2/2)(5790-6140)506(1/2)NoControlNoControl'Ih-2288130(7/8)(95.3-150)I40.1mlS144(2/2)(138-150)NoControlMIIk(pCI/liter)Gamma155K-401551379(104/104(1020-1870)Warmbten7.7mlS1407(26/26)(1210-1850)1347(51/51)(1110-1890)1-131155-(0/104)N/AN/A-(0/51)Cs-13715513.4(1/104)Freellng13.4(1/21)9.34(1/51)(a/b)Rauoofsampleswtthdetectableactivitytototalnumberofsamplesanalyzed.

RADIOLOGICALENVIRONMEMONITORINGPROGRAM8UMMARYINDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTDOCKETNO.60%16/6016BERRIENCOUlfIYJANUARYItoDECEMBER31,1992MEDIUMORPATHWAY1%7l'ALNUMBERSAMPLEDOFANALYSESIUNITOFMEASUREMENIIPERFORMEDMEAN[a/b)RANGENAMEMEANDISPANCEANDDIRECTIONRANGECONIROLLOCATIONMEANRANGENONROUHNEREPORIEDMEASUREMENISPish(pCI/kgwet)GammaK-403113(8/8)(2340-4160)ONS-North0.3mlN3610(2/2)(3060-4160)-(0/0)Cs-13748.0(1/8)OFS-North3.5mlN48.0(l/2)-(0/0)Pood/Vegetation(pCl/kgwet)1976(6/8)(58.2-4030)SectorBVariable2360(1/2)-(0/0)K-40Cs-1372401(8/8)(1630-3850)28.1(2/8)(19.9-36.2)SectorJVariableSectorAVariable2680(4/4(1820-3850)28.1(2/2)(19.9-36.2)-(0/0)-(0/0)(a/b)Ratioofsampleswithdetectableacttvitytototalnumberofsamplesanalyzed.I APPENDIXBDATATABLES43 INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTGROSSBETAEMITIERSINWEEKLYAIRBORNEPARIICULATESResultstnUnitsof10-sPCI/m~22sigmaCOLUM:TIONDATESA-2A-3A-4A-5STATIONCODESA-BColomaDowaghcNewBuffSouthBendAveragek2s.d.JANUAR901/06/9201/13/9201/20/9201/27/9202/03/9224+224k219+227k220%223k2212216k221%220k225%225%227%225%224+227%221%226%224%223%2-23+220%220%221%218%220%219%218%227%225+227%228%227%228%2202219k2202214%220%220%225+226k219%225k2192225%219k218k225k218%225+323k519%326+419%4~~BUgf02/10/9202/17/9202/24/9203/02/9220%216%218%215%2I9+216%216%28.8%1.515k213%217%216+219k217+218%216%216%216%215+214%218k219k216%215a2191220k218k218a2202218k2162216%2)9k218%217%214+2192216k217+218+219'18%316'16%3gAI~C03/09/9203/16/9203/23/9203/30/9220%217%218+219%219%218%212%116%217%213%214%215%219%219%219%217%215%216%215%214+218k215%219k21742224220k215+217+217a2172213k213k219%218%219%213%22022192217k214+219%318%316%515%319%918%719%7'19%819%919%820%B19%919*819%B19k1 TABLEB-1{cINDIANAMICHIGANPOlVERCOMPANY-DONALDC.COOKNUCLEARPLANTGROSSBETAEMIITERSINWEEKLYAlRBORNEPARTICULATESResultsinUnitsof10-3pCI/msk2sigmaCOLLECMONA-1DATESA-2A-SA-4A-6STATIONCODESA-6Co)ornaDowaglacNewBuffSouthBendAveragek2s.d.04/06/9204/13/9204/20/9204/27/9205/04/9218k214t213%27.1k1.416k218%219%220%215%218%221%216%215%215%214%216%216%214k214+211k211k214k212k210k27.5%1.47.4k1.46.4k1.36.9C1.46.6k1.416%217+269%09(a)17%214%216%216k214k210k27.3+1.415k213%216%212%27.0k1.414%2192217k213k27.221.418k218k515+212+37k215%605/08/9205/15/9205/11/9205/18/9205/25/9206/01/92Ib)lb)15k216%213k214k216%215%218%2l7i218%219%2121214%214%215%215%2151216%215+213k215a214%215%215%214%212%211%212%214%215+215%211%213%214+213%212%214%221k324k416%324k314k218+221%324k415+217%613%215'06/08/9206/15/9206/22/9206/29/9216%213%216%215+213%216%215%211%215%215%215%314i214+214+216+214%215%214%214%214%214%214%111%29.3k1.611+213%23.2k0.8(a)10%211k29.2k1.59.2i1.59.8%1.610k513%213%212%2.14%213%214%216%214%213%2-15%214*2QiauterIyAvg.14%614%614%616%71SA814%614271Sa6131616%914%2(a)Equipmentmalfunctfon:resultsIntotalpCIandnotIncludedlnaverages.(b)Extrasamplescollectedduetoheavydust.

INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTGROSSBETAEMBERSINWEEKLYAIRBORNEPARTICULATESResultslnUnitsof10-3pCI/m~k2sigmaCOLQ~ONA-1DATESA-2A-3STATIONCODESA-6ColomaDowaglacNewBuffSouthBendAveragek2sod07/06/9207/13/9207/20/9207/27/9208/03/9216%218%217%218%215%216%214%218%212%217%217+218%216%217%218%218%28.0%1.38.6%1.49.3k1.49.7k1.48.6%1.49.0%1.47.6k1.37.2k1.311%29.1%1.59.8%1.6Ilk29.7k1.613%211%211%217%213%214%215%214%213%213%212%215k216%28.9R1.3IOR213+2'19%219%28.3k1.312%214%217%317%49R211%214+3bUG~S'g08/10/9208/17/9208/24/9208/31/9218+217+216%'216+217%216+216%216%216%214%213+213%213+213+213%212%211%210%220%217%217%217%217%217%215%216+218%212%211k211k28.7%2.29.7k2.28.0%2.18.3%2.18.6%2.2102218+217%211%2(a)12%319+217%312%210+3SEPTEMBER09/07/9209/14/9209/21/9209/28/9220%220%220%221%221%220%220%216k216%217%22.0%0.5lb)16+216%214%220%221%222%2(c)22k221+220+214%22.9%1.215%212%212%216%214%219k213%222k214k220%216%222k215+220%220%1182216+320%221%214%213%8QuarttrlyAvg.16%814%1016%814%816%816%814%814%'916%816%816%1(a)Equipmentmalfunction;lowsamplevolume.(b)Lossofpowertoairstauon;resultslntotalpClandnotIncludedlnaverages.(c)Lossofpowertoairstauon;samplenotavailable.

TABLEB-1{Cant.lINDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTGROSSBETAEMITIERSINWEEKLYAIRBORNEPAKI1CULATESResultstnUnitsof10-3pCI/m3k2sigmaCOILECTIONDATESA-1A-2A-3A-4A-6STATIONCODESA-BColomaDowaglacNewBuffSouthBendAmnge22S.d.CXQQ~BI$10/05/9210/12/9210/19/9210/26/9211/02/9221%218%219%230%215%220k217+216%234k212k220k218k215k232k211%219%216%2I?%234k312%221%217%215%230%210%221%216%216%231%212%219k217%215%227k210t220k214k215%231k211%222k216%220%235%2llk219%215%216%225+211+220%216%316%431%612%3~OL~B~E11/09/9211/16/9211/23/9211/30/928.3k1.57.6%1.58.4%1.59.121.6?.3k1.518%217+218%219%220%217+215%218%216%215%216%216%215%215%215%28.1%1.57.4+1.420%225%216%216+216+216%28.5%1.5'.8,k1.48.5k1.58k116%218%218%219k514+216%217%2162216%217%217%216%1DECEMBER12/0?/9212/14/9212/21/9212/28/9218%211%228%233k217%218%218%216%220%218+2"18%211%211%29.8%1.69.4k1.613%212+212+230%232%228k228k231+228%231+233%235%231%229k231%229%231%218k218%210+213%232k231%229k232k218%211%330+431%4QmeterAvg.19%1419%1719%1719%1618+1819%1618%1418%1619%171911419%18AnnualAvg.17%1116%1117%1117%111BA1117%1117%101BRll17%1217%1017211 LEB-2INDIANAMICHIQANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTRATIONSOFGAMMAEMfITERS'NQUARTERLYCOMPOSITESOFAIRBORNEPARTICULATESResultslnUnttsof10-3pCt/m3k2stgmaStationsNuciidesFirstQuarter11/so/91~/80/9$SecondQuarterOS/so/9246/20/QQThirdQuarterOs/29/92OQ/28/saFourthQuarter09/28/9012/2s/02AvengeRQad.A-1Be-7K-40Cs-134Cs-13792.9%9.3<4<0.2<0.2120k12<4<0.3<0.3118212<4(0.2(0.299.7k10.0<5<0.3<0.3108227A-2Be-7K-40Cs-134Cs-13791.0k9.1<6<0.3<0.3125%13<7<0.3(0.21012103.16%1.75<0.2<0.296.2j:9.6<8<0.3<0.3103+303.16k1.75A-3Be-7K-40Cs-134Cs-137117k12<5<0.3<0.3127R13<10<0.3<0.3107k11<3(0.2<0.299.7k10.05.2222.70<0.4<0.4113+245.22a2.70Be-7K-40Cs-134Cs-13790.4k9.02.95A1.70<0.2<0.2153+15<5<0.3<0.395.8+9.6<4(0.2(0.2101k10<5<0.3<0.2110258.2.95A1.70A-5Be-7K-40Cs-134Cs-13784.5k8.5<8<<0.3<0.3110k119.21k2.89<0.3<0.3102+10<7<0.3<0.387.0R8.710.7k3.4<0.4<0.395.9R2410.0+2.1TypicalLLDsarefoundfnTableB-12.Allothergammaemttterswere<LLD.

TABLEB-2tcont.)INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTRATIONSOFGAMMAEMITIERS'NQUARTERLYCOMPOSIIESOFAIRBORNEPARI1CULATESResultsinUnitsof10-8pCI/m~k2sigmaNucHdesHrst~r12/80/91~/80/92SecondQuarter08/80/9248/29/92ThirdQuarter08/29/9249/28/92FourthQuarter09/28/9212/28/92Averagei2ad.A-6Be-7K-40Cs-134Cs-13792.1%9.26.59R2.01<0.3<0.3147%15<6(0.2<0.3120k12<7<0.3<0.2110k11<6<0.3<0.3117R466.59R2.01Be-7K-40Cs-134Cs-13793.9k9.4<4<0.3<0.3123+12<5<0,3<0.293.6R9.4<10<0.3<0.396.7+9.7<4<0.3(0.2102k28DowagtacBe-7K-40Cs-134Cs-13793.4k9.3<20<0.5<0.4177%18<10<0.4<0.4110t11<4(0.2(0,291.0k9.1<6<0.3<0.3118k81NewIhdI'aloBe-7K-40Cs-134Cs-13788.6k8.9<10<0.3<0.3126k13<4(0.2(0.2124R12<5<0.2<0.393.9+9.4<5<0.3<0.4108R39SouthBendBe-7K-40Cs-134Cs-13796.1R9.6<4<0.2<0.3137k14<9<<0.3<<0.3102R108.31A2.99<0.3<0.387.6k8.8<10<0.4<0.3106k438.31%2.99~IcalLLDsarefoundinTableB-12.Allothergammaemitterswere<LLD.

INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTIODINE-131INWEEKLYAIRCARTRIDGESAMPLESResultsinUnitsof10-3PCI/m3k2sigmaCOLLECTIONA-1DATESh-2A-4STATIONCODESA-5A-6ColomaDowagfacNewBuffalo8outhBend01/06/9201/13/9201/20/9201/27/9202/03/92<10<<10<10<<10<20<10<10<10<<10(20<<10<10<10<10<20<10<<10<10<10(20<6<8<9<5<10<10<10<10<10(20<10<10<10<10<20<10<10<10<10<20<9<5<5<9<10<10<10<10<10<2002/10/9202/17/9202/24/9203/02/92<10<10<10<<10<10<10<10<10<10<10<10<10<10<10<10<10<6<6<8<9<20<10<20<10<20<10<20<10<20<10<10<9<20(10(10(8<20<<10<20<10~R~g03/09/9203/16/9203/23/9203/30/92<20(20<6<20<10(20<7(20<10<20<10<20<10(20<5(20<9<7<7<10<10<10<10<10(10<10<10<10<10<.10<10<10<8<9<7<9<10<10<10<10 TABLE&8tcont.)INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTRATIONSOFIODINE-131INWEEKLYAIRCARTRIDGESAMPLESResultslnUnitsof10-3pCI/m3k2sigmaCOLIECTIONA-1DATESA-2A-4STATIONCODESA-5AWColomaDowagiacNewBufXaloSouthBend04/06/9204/13/9204/20/9204/27/9205/04/92<20<20<20<20<20<20<20<20<20<20(20(20<20<20(20(20<9<20<8<20<10(20<8<10(a)<9<20<10(20<20<20<20<20<20(20<20(20<20<20<20<20<10<<10<10<10<10<20<20(20(20<2005/08/92tb)05/14/92tb)05/ll/9205/18/9205/25/9206/01/92(20<20<20(20(20(20<20(20<20<20<20<20<20(20<20(20<9<9<10<10(20(20<30(20(20(20<30(20<20(20<30(20<10<10<20<9<10<30<50<40<30(2006/08/9206/15/9206/22/9206/29/92(20(10<20(20(20<10<10<20(20<10<10<20<20<20<10<30<10<6<4(a)<10<<30<10<20<20<30(20(20(20<30<20(20<20(20<7<10<10<30(20<20(20(a)Equipmentmalfunctton.(b)Extrasamplescollectedduetoheavydust.

B-3(Cont.)INDIANAMICHIGANPONERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTRATIONSOFIODINE-131INWEEKLYAIRCARTRIDGESAMPLESResultsInUnitsof10-~PCI/msk2sigmaCOLLECTIONA-IDATESA-2STATIONCODESA-5A-6ColomaDowaglacNewBuIMoSouthBend07/06/9207/13/9207/20/9207/27/9208/03/92<20<20<10(20<20<20<20<10<20<20<20<20<10(20(20(20(20<10<20<20<10<10<6<7<10<9<10<10<10<20<10<10<10<10(20<10<10<10<10(20<8<6<9<8<8<10<'10<10<10<20AUGUST08/10/9208/17/9208/24/9208/31/92(20<20<10<20<20<20<10<20<20(20<10<20(20<20<10(20<7<10<7<8<10<10<10<20<10<10<10<20<10<10(10(20<9<10<<10<10<10<10(a)<20<20SEPTEMBE09/07/9209/14/9209/21/9209/28/92<20<20<<10<20(20<20<10<10(20(20<10<20(20<<10Ib)(c)<10<8<9<10<7<9<20<6(20<9(20<10<20<9<20<10(20<6<10<10<7<9(20<10<20(a)Equipmentmalfunct)on;lowsamplevolume.(b)Lossofpowertoairstat)on.(c)Lossofpowertoatrstat)on;samaplenotavailable.

TABLEB-3[cont.)INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTRATIONSOFIODINE-131INWEEKLYAIRCARTRIDGESAMPLESResultsInUnitsof10-3PCI/m3k2sigmaCOLLECTIONh-IDATESA-2A-4STA'11ONCODESA-6A-6ColomaDowaglacNewBulfaloSouthBend10/05/9210/12/9210/19/9210/26/9211/02/92<20(20<20<10<20<20(20<20<10<20(20<20(20<10<20<20(20(20(20<20<<10<7<8<9<7(20<10<10<10<10<20<10<10<10<10(20<10<10<10<10<8<8<10<7<9<20<10<10(10<2011/09/9211/16/92vl11/23/9211/30/92<20<10(10<10(20<10<10<10<20<10<10<10(20<10<10<10<10<<9,<6<7<10<20<10<20<<10(20<10(20<10(20<10<20<7<10<7<7<10(20<10<2012/07/9212/14/9212/21/9212/28/92<20<20<20<10<20(20(20<10(20(20(20(10<20(20(20<10<7<7<10<9<10<10<30<9<10<10<30<9(10<10<30<9<9<9(20<6<10<10<30<9 B-4INDIANAMICHIGANPOWERCO-DONALDC.COOKNUCLEARPLANTDIRECTRADIATIONMEASUREMENTS-gUARTERLYTLDRESULTSResults!nUnitsofmR/standardmonthSTATIONCODESFIRSTQUARTER01/04/92-04/05/92SECONDQUARTER04/05/92~/05/92THIRDQUARTER07/05/92-10/04/92FOURTHQUARTER10/04/92%1/OS/93AVERAGE+2s.d.A-1A-2A-3A-4A-5A-6A-7A-8A-9A-10A-11A-12OFS-1OFS-2OFS-3OFSXOFS-5OFS-6OFS-7OFS-8OFS-9OFS-10OFS-11NBFSBNDOWCOL3.8R0.73.840.53.2i0.33.8%0.33.5i0.43.4A0.63.8R0.43.6R0.44.2A0.83.2i0.44.1k0.74.0*0.43.8R0.34.2%0.34.0k0.44.3a0.34.3k0.34.8i0.43.8%0.34.9i0.44.2R0.43.8+0.44.6k0.53.920.54.4k0.93.5%0.13.420.33.6A0.33.8R0.63.2R0.64.0%0.53.7%0.53.7%0.23.8%0.33.8%0.74.1k0.53.5%0.64.2A0.54.1i0.53.7%0.64.1+0.84.2%0.44.3k0.94.2A0.85.1k0.93.8%0.64.7%0.64.5k1.03.8A0.74.7k0.74.1+0.74.0%0.83.4%0.63.5k0.33.7k3.7k3.2t3.9k,3.5k3.5k3.923.7i4.0k3.2k4.0k4.2k3o7k4.0k4.0i4.3+4.2k4.9k3.7k4.7k4.3k3.8k4.5k3.8k4.0a3323.3k0.10.20.10.20.10.10.10.20.20.10.20.10.30.20.30.30.10.60.10.30.30.20.3O.10.40.20.33.5R0.23.620.23.1R0.23.8A0.23.4R0.23.3R0.23.6R0.33.620.33.8A0.33.2R0.23.8%0.43.8A0.23.7A0.23.8R0.13.820.44.3k0.34.0k0.34.8R0.53.8R0.14.620.34.2R0.53.9k0.14.4A0.23.7*0.24.020.23.32O.l3.320.23.7k0.33.720.23.2E0.13.9R0.23.5+0.33.5a0.33.8%0.33.7%0.24.0k0.33.320.34.020.34.0%0.33.7i0.14.020.34.0k0.34.3k0.04.2i0.34.9k0.33.8A0.14.7*0.34.3k0.33.8R0.14.6E0.33.9k0.34.1k0.43.4R0.23.420.2Average22s.d.8.920.94.0%0.93.9+0.93.8A0.88.9%0.9Standardmonth~30.4days.

TABLEB-5INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTRATIONSOFIODINE,TRITIUMANDGAMMAEMITTERS'NSURFACEWATERResultslnUnitsofpCl/literk2sigmaSTATIONCollectionDateI-131K-40L-1(CondenserCirc.)01/09/9202/06/9203/05/92(a)04/02/9204/30/9205/28/9206/25/9207/23/9208/20/9209/17/9210/15/9211/12/9212/10/92<0.3<0.4<0.3<0.4<0.2<1<0.4<0.3<0.3<0.4<0.4<0.3<0.3<100<100<80<50<50<50<80<60<70<90<70<6060.5+2.71<100<100170k70170R80I2(SouthComp)01/09/9202/06/9203/05/9204/02/9204/30/9205/28/9206/25/9207/23/9208/20/9209/17/9210/15/9211/12/9212/10/92<0.3<0.3<0.3<0.4<0.2<1<0.4<0.2<0.3<0.3<0.3<0.3.<0.3<100<200<100<100<50<60<80<60<?0<200<90<90<100<200<100220R701100k100TyptcalLLDsarefoundlnTableB-12.Allothergammaemltterswerebelow<LLD.(a)Cesium-137wasmeasuredat7.19k2.52pCI/1andconfirmedbyadditionalmeasurements.

LEB-5(cont.lINDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCElfIRAT1ONSOFlODINE,TRITIUMANDGAMMAEMITIERS'NSURFACEWATERResultslnUnitsofpCI/literk2sigmaSTATIONCollectionDateK-40(NorthComp)01/09/9202/06/9203/05/9204/02/9204/30/9205/28/9206/25/9207/23/9208/20/9209/17/9210/15/9211/12/9212/10/93<0.3<0.3<0.3<0.5<0.3<0.7<0.8<0.3<0.3<<0.3<0.5<0.3<0.3<100<80<50<50<60<70<80<100<70<70<70<50<50190R80<100310k701400k100(South500)01/09/9202/06/9203/05/9204/02/9204/30/9205/28/9206/25/9207/23/9208/20/9209/17/9210/15/9211/12/9212/10/92<0.3<0.3<0.3<0.4<0.3<1<0.5<0.2<0.4<0.3<0.5<0.4<0.3<90<100<80<50<50<60<50<80<80<70<80<80<100190k90<100360+701200k100TyptcalLLDsarefoundinTableB-12.Allothergammaemltterswerebelow<LLD.

TABLEB-5{cant.)INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTRATIONSOFIODINE,TRITIUMANDGAMMAEMITTERS'NSURFACEWATERResultsinUnitsofpCl/literk2sigmaSTATIONCollectionDateI-131KROL-5(North500)01/09/9202/06/9203/05/9204/02/9204/30/9205/28/9206/25/9207/23/9208/20/9209/17/9210/15/9211/12/9212/10/92<0.4<0.4<0.3<0.4<0.3<<I<0.5<0.2<0.5<0.5<0.4<0.3<0.368.0k29.6<60<10055.9225.2<90<100<70<90<100<80<60<50<60<100<100340k701000k100TyptcalLLDsarefoundlnTableB-12.Allothergammaemltterswerebelow<LLD.

ABLEB-BINDIANAMICHIGANPOWERANY-DONALDC.COOKNUCLEARPLANTCONCENTRATIONSOF'IRITIUMANDGAMMAEMITIKRS'NQUARIERLYGROUNDWATERResultsinUnitsofpCI/literk2sigmaSTATIONCollectionDateI-131K-40Well-102/09/9204/28/9207/31/9210/31/92<0.1<0.2<0.2<0.2<100<60<50<50<200<100<100<100Well-2Well-SWell-4Well-5Well-BWell-702/09/9204/28/9207/31/9210/31/9202/09/9204/28/92.07/31/9210/31/9202/09/9204/28/9207/31/9211/01/9202/09/9204/28/9207/31/9211/01/9202/09/9204/28/9207/31/9211/01/92'2/09/9204/28/9207/31/9210/31/92<0.1<0.2<0.2<0.1<O.l<0.2<0.2<0.1<0.1<0.2<0.2<0.1<0.4<0.2<O.l<0.1<0.1<0.2<0.1<O.l<0.1<0.2<0.3<0.2<100<90<50<50<50<100<90<60<200<50<50<80<100<90<50<50<60<70<50<40<100<60<50<80<200120R80<100<100<200<100<200<1001200A1101100k1001100k100840k100720R160580%100410k100280k110300k100540k100540k100450k901300k1001500k1001200k100950k110TypicalLLDsarefoundinTableB-12.Ailothergammaemitterswere<LLD.

TABLEB-6{coot.lINDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTRATIONSOFTRITIUMANDGAMMAEMITIERS'NQUARIERLYGROUNDWATERResultsinUnitsofpCI/literk2sigmaSTATIONCollectionDateI-181K-40Well-8Well-9Well-10Well-11Well-12Well-1S02/09/9204/28/9208/10/92(a)10/31/9202/18/9204/28/9207/31/9210/31/9202/11/9204/28/9207/30/9210/31/9202/11/9204/28/9207/30/9210/31/9202/11/9204/28/9207/30/9210/31/9202/11/9204/28/9207/31/9210/31/92<0.1<0.2<0.1<0.1<0.3<0.1<0.2<0.1<0.4<0.2<0.2<0.1<0.4<0.2<0.1<0.2<0.5<0.2<0.2<O,l<0.4<0.2<0.2<0.2<50<60<40<50<50'7.0R24.8<50<60<90<60<60161k25<100<50<90<70<90<100<5039.1%15.5<100<100<5059.1+20.6<200<100<100<100<200<100<100<100<200<100140+80140R80<200<100<100<100<200120k80<100<100950k140650k110490k100260R90Average%2S.d76.6%114662%8360'PgpicalLLDsarefoundlnTableB-12.Allothergammaemltterswerc<LLD.(a)Sampleunavailable:substitutesamplecollected08/10/92.

LEB-7INDIANAMICHIGANPOWERANY-DONALDC.COOKNUCLEARPLANTCONCENTRATIONSOFGROSSBETA,IODINE.TRITIUMANDGAMMAEMIITERS'NDRINKINGWATERResultsInUnitsofpCI/ltterk2sigmaCOLLECTIONDATELakeTownship01/09/9201/23/9202/06/9202/20/9203/05/9203/19/9204/02/9204/16/9204/30/9205/14/9205/28/9206/11/9206/25/9207/09/9207/23/9208/06/9208/20/9209/03/9209/17/9210/01/9210/15/9210/29/9211/12/9211/26/9212/10/9212/24/923.0k2.6x4.3s4.1k6.2k3.3k3.4k5.9k3.7i2.343.7k3.3k3.4+2.9k4.7+3.5k2.9k3.5k3.6i4.2k3.5k2.4+2.8k3.8k1.9k3.4+1.01.01.11.01.21.01.01.21.11.01.01.01.01.01.11.00.91.01.01.10.90.90.90.91.21.0<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLDIodine-1S1<0.3<0.3<0.3<0.4<0.3(0.2<0.3<0.5<0.3<0.4<0.4<0.2<0.3<0.3<0.5<0.3<0.1<0.4<0.4<0.3<<0.4<0.3<0.3<0.5(0.2<0.3<100<100<100160k80AveragekS.Bk2s.d.TyptcalLLDsarefoundIntable2.0B-12,150k80 TABLEB-7tcant.)INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTRATIONSOFGROSSBETA,IODINE,TRITIUMANDGAMMAEMITIERS'NDRINKINGWATERResultsinUnitsofpCI/literk2sigmaCOILECTIONDATESt.JosephOl/09/9201/23/9202/06/9202/20/9203/05/9203/19/9204/02/9204/16/9204/30/9205/14/9205/28/9206/11/9206/25/9207/09/9207/23/9208/06/9208/20/9209/03/9209/17/9210/01/9210/15/9210/29/9211/12/9211/26/9212/10/9212/24/92Average42$od3.1a1.13.1a1.13.1+1.03.9k1.04.6%1.12.9i1.04.0k1.12.6k1.03.3+1.14.2%1.24.7a1.13.2i1.03.911.04.4k1.12.6R1.05.1k1.13.0%1.05.1k1.13.7k1.04.7k1.13.9k1.02.6%1.03.4k0.93.4k0.93.3k1.33.2R1.03.7%1.8Gamma8c<LLD<LLD<LLD<LLD<LLD<LLD<LLD<ILD<LLD<LLD<LLD<Il.D<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLDIodine-191<0.3<0.2<0.3<0.4<0.4<0.2<0.3<0.3(0.2<0.2<0.4(0.2(0.2<0.3<0.5<<0.3(0.2<0.5<0.3<0.4<0.4<0.3<0.3<0.4<0.2<0.2(200180k90<100<100IcalLLDsarefoundintableB-12.

INDIANhMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTRATIONSOFGAMMAEMITIRRS~INSEDIMEÃ1'esultstnUnttsofpCl/kg(dry)+2stgmaStattonCollectionDateBe-7KKOCa-137Ra-226Th-228I4L-505/17/9205/17/9205/17/9205/17/9211/19/9211/19/9211/19/9211/19/92<200<200<200<200<200<200<200<2006140k6105170R5204390k4405800k5805790k5806470k6506040k6005220k520<30<20<20<20<20<30<20<30<400<300<400<400<300<<400<400506R297141k25133k19138R32<40139R28116k2115022295.3k21.7hvaage%2S.d8628%13328062297130%37TyptcalLLDsarefoundintableB-12.Allothergammaemltterswere<LLD.

TABLEB-9INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCElfFRATIONSOFIODINEANDGAMMAEMITIERS'NMILKResultsinUnitsofpCi/literk2sigmaCOLLISIONANALYSISSHULERDATESTOTZEESTATIONCODESFREEHLING(a)WARMBEINZELMERLIVINGHOUSEWYANT01/10/92K-40I-1311140k1101640k150<0.2<0.21290k130<0.11430k1401180k120<O.l<0.2(b)01/26/92K-40I-1311120X110<0.21490a150<O.l14602150<O.l1280k130<0.21360%140<O.l1350k140<0.202/07/92K-401-1311200k12013702140<0.1<0.11340k130<0.21240R120<0.11310k130<0.11280k130<O.lu)02/21/92K-401-1311020i100<0.21280k130<0.21440k140<0.114202140<0.21200k120<0.41120t110<0.203/06/92K-401-131122011201470t150<0.2<0.21400k140<O.l1390*140<0.21360k140<0.11200k120<0.203/20/92K-40I-1311360k1401340k1301420k140<0.2<0.2<0.11210120<0.2(c)1380k140<O.l13302130(d:<0.2(a)Addedtotheprogram03/20/92toreplaceLozmack.(b)Samplenotavailable.(c)Zelmeroutofbusiness03/16/92.(d)Cesium-137wasmeasuredat9.34+4.63pCi/liter.TypicalLLDsarefoundintableB-12.Allothergammaemitterswere<LLD.

INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTRATIONSOFIODINEANDGAMMAEMITIERS'NMILKResultsinunitsofpCi/literk2sigmaCOILECTIONANALYSIS8HULERDATESTOTZEESTATIONCODESFREEHLINGWARMBEINZELMERLIVINGHOUSEWYANT04/03/92K-401170k1201440k1401230k1201300k1301-131<0.1<0.2<0.2<0.21420k1401260k130<0.1<0.104/17/92K-401-1311870j190<0.11430k1401330k1301710k170<0.2<0.2<0.21370k14014502140<0.2<0.105/01/92K-401-1311510k150<0.11320k1301470k1501850k190<0.2<0.2<0.21770k1801690+170<0.2<0.205/15/9205/29/92K-401-131K-401-1311290%130<0.11700k170<O.l1350k140<0.21480k150<0.11280k130<0.11300k130<0.11320k1301370k140<0.1<0.21320%130<0.21310k130<O.l1290k130<0.11290%130<0.106/12/92K-401-1311340k130<0.2!1510k1501400k14014002140<0.2<0.2<0.21890R190<0.114602150<0.206/26/92K-401-1311300k130<0.21440k1401580k1601360k140<0.2<0.2<0.11310t1301420k140<0.2<O.lTypicalLLDsarefoundintableB-12.Allothergammaemitterswere<LLD.

TABLEB-9(cont.)INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTRATIONSOFIODINEANDGAMMAEMITIERS'NMILKResultsinUnitsofpCi/literk2sigmaCOLLMONANALYSISSHULERDATESTOTZKESTATIONCODESFREEHLINGWARMBEINZELMERLIVINGHOU8EWYANT07/10/92K-401-1311680k170<0.31510k150<0.21400k1401330k130<0.2<0.213202130<0.31310k130<0.207/24/92K-40I-1311370k1401430k1401470k1501340t130<0.2<0.2<0.1<0.21410k1401460k150<0.2<0.208/07/92K-401-1311470k1501230k1201480k1501470k150<0.2<0.1<0.1<0.21450k1401310k130<0.2<0.308/21/9209/04/9209/18/92K-401-131K-401-131K-401-1311400k140<0.11250k130<0.21770k180<0.11450k150<0.091160k120<0.21460k150<O.l1160k120(a)<0.11340%130<0.21330k130<0.11380%140<0.11450k140<0.21460k150<O.l1340k130<0.11550k160<0.21260k130<0.11290k130<0.21310k13011102110<0.1<0.1TypicalLLDsarefoundintableB-12.Allothergammaemitterswere<LLD.

B-9{cont.)INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCElfHVLTIONSOFIODINEANDGAMMAEMITIERS'NMILKResultslnUnitsofpCl/literk2sigmaCOLu&TIONANALYSISDATESSHULERTOTZKESTATIONCODESFREEHLINQWARMBEINZELMERLIVINQHOUSEWYANT10/02/9210/16/9210/30/9211/13/9211/27/9212/11/9212/26/92K-401-131K-40I-131K-401-131K-40I-131K-401-131K-401-131K-401-1311220i120<0.11380k140<0.71370k140<0.21370k140<0.414401140<0.21070k110<0.115802160<0.11480k150<0.314902150<0.21260k130<0.51220k120<0.21390k140<0.21360k140<0.21460R150<0.21300k130<0.21270+130<0.31290k130<0.21160k120<0.21320i130<0.21410k140<0.21130k110<0.21210k120<0.21440k140<0.213302130<0.21360A140<0.21510k150<0.21490k150<0.21380k140<0.21400A140<0.41430k140<0.21390R140<0,314102140<0.11200k120<0.212904130<0.21160k120<0.21270R130<0.31280%130<0.21180R120<0.21400k1401180k120<0.2<0.21390k1401290k130<0.2<0.4TypicalLLDsarefoundlntableB-12.Allothergammaemltterswere<LLD.

TABLEB-10INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTRATIONSOFGAMMAEMITTERS'NFISHResultsinUnitsofpCi/kg(wet)k2sigmaCollectionDateStationDescrltionBe-7K-40Cs-187Ra-226Th-22805/07/9205/07/9205/07/9205/07/9210/06/9210/06/9210/06/9210/06/92OFS-SouthOFS-NorthONS-SouthONS-North.OFS-SouthOFS-NorthONSSouthONS-NorthRedHorseSucker<300RedHorseSucker<200RedHorseSucker<200RedHorseSucker<300RedHorseSucker<300RedHorseSucker<300RedHorseSucker<200RedHorseSucker<3003000A4602340k3702970k3703060R3902930%3403330k3903110k3104160R430<3048.0k24.3<30<40<30<30<30<<40<600<400<500<500<400<500<400(600<50<40<40<50<40<40<30<50Average%2s,cLSllSk1017-48.0%24.S~TypicalLLDsarefoundintableB-12.Allothergammaemitterswere<LLD.

T11INDIANAMICHIQANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTRATIONSOFGAMMAEMITIERS'NFOOD/VEGETATIONResultslnUnitsofpCl/kg(wet)k2sigmaCOLLECTIONDATEStationDescritionBe-7K-40I-181Cs-1S708/09/9208/09/9209/27/9209/27/9209/27/9209/27/9210/09/9210/09/92SECTOR-ASECIQR-ASECTORS(close)SECTORS(20M)SECTORS(close)SECTORS(20M)SECIQR-BSECTOR-BBroadLeavesBroadLeavesGrapeLeavesGrapeLeavesGrapeGrapeGrapeLeaves1460+1501180k1202770k2804030k40058.2k26.2<30<402360k2401630%1702730R2703220%3203850k3901820k1801830k1801660k1702470R250<30<20<40<40<10<8<8<3036.2+14.519.9+10.5<20<20<5<4<4<10Averagek2s.d.197BR27882401k1BS728.1k2S.1TypicalLLDsarefoundlntableB-12.Allothergammaemltterswere<LLD.

TABLEB-12INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTGAMMASPECIROMETRYLOWERLIMlTSOFDEIECTIONANDREPORTINGLEVELSIsotoTechSecLLDRetLevelTILLDTechScLLDRetLevelCerium-144Barium/La-140Cesium-134Ru,Rh-106Cesium-137Zr,Nb-95Manganese-54Iron-69Zinc-65Cobalt-60Cobalt-58iodine-131Iodine-131(a)eetatlo601010801010101520101020-weN/AN/A60N/A60N/AN/AN/AN/AN/AN/A60N/AN/A1000N/A2000N/AN/AN/AN/AN/AN/A1003050/10750610/155151055101Water-lteN/A60/1515N/A1830/15153030151511N/A20030N/A50400100040030030010002Cerium-144Barium/La-140Cesium-134Ru,Rh-106Cesium-137Zr,Nb-95Manganese-54Iron-59Zinc-65Cobalt-60Cobalt-58Iodine-131iodine-131(a)3050/107506205151055101teN/A60/1515N/A18N/AN/AN/AN/AN/AN/A11N/A30060N/A70N/AN/AN/AN/AN/AN/A30.0070.0050.0020.0100.0020.0020.0020.0020.0020.0020.0020.040Filter-CiN/AN/A0.06N/A0.06N/AN/AN/AN/AN/AN/A0.07N/AN/A10N/A20N/AN/AN/AN/AN/AN/A0.9(a)AnalystsbyradiochemistryandbasedontheassumptionsinProcedurePRO-032-11.'l~p TABLE{cont.)INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARHANTGAMMASPECTROMETRYLOWERLIMITSOFDETEC11ONANDREPOKIINGLEVELSIsotoTech8cLLD'etLevelTech8eoILDRetLevelCerium-144Barium/La-140Cesium-134Ru,Rh-106Cesium-137Zr,Nb-95Manganese-54Iron-59Zinc-65Cobalt-60Cobalt-58Iodine-1312002002020020402040402020100N/AN/A130N/A150N/A130260260130130N/AN/AN/A1000N/A2000N/A3000010000200001000030000N/A150530200304095060202030N/AN/A150N/A180N/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AQrossBeta/TrttlumLLDsandReAirParticulatesDrinkingWater'.01pCI/m30.01pCI/m32pCI/l4.0pCI/lN/AN/ASurfaceWaterGroundWaterDrinkingWater2002002002000'000200020,00020,00020,000(b)BasedontheassumptionslnprocedurePRO-042-5.I APPENDIXCANALYTICALPROCEDURESSYNOPSIS71 ANALYTICALPROCEDURESYNOPSISAppendixCisasynopsisoftheanalyticalproceduresperformedduring1992onsamplescollectedfortheD.C.CookPlant'sRadiologicalEnvironmentalMonitoringProgram.AllanalyseshavebeenmutuallyagreeduponbyIndianaMichiganandTeledyneIsotopesandincludethoserecommendedbytheUSNRCRegulatoryGuide4.8,BTP,Rev.1,November1979.AIMLYSISTITLEPAGEGrossBetaAnalysisofAirParticulateSamples..........................73GrossBetaAnalysisofWaterSamples.................................74AnalysisofSamplesforTritium(Gas).................................76atereee~~~~oee~oe~~~e~e~eee~eeeeee~eeee~eeee~~ee~ee~e~ee~o76WAnalysisofSamplesforTritium(LiquidScintillation)....................77AnalysisofSamplesforStrontium-89and-90..........................78otalWater..................................................78Tilkoooooooo~oooo~oooooooo~ooooooooooooo~o~ooo~oooooo~o~~~oo78MSoilandSediment............................................78nicSottidsoo~ooo~~oo~ooooe~~o~~o~e~~o~~~~~oo~o~o~o~ooo~~~e79Orgap~~4rP~~culates...............................................79AnalysisofSamplesforIodine-131...................................82MilkorWater..oooooo~ooo~ooo~o~~oe~ooooooooooo~o~ooo~82GammaSpectrometryofSamples....................................83ilkandWater...............................................83MDriedSolidsotherthanSoilsandSediment......................83e~ooooooooooo~~ooooooooooooooooooo~ooo~ooo~~~~~~e~~o~~ooo83HshSoilsandSediments.................,.........................83CharcoalCartridges(AirIodine)................................83AirborneParticulates...EnvironmentalDosimetry....eeee~eeeee~ooo~e~eeoe~~eee~e84ooeooe~~~eo~~~~o~~~~o~~~o~ooooo~oo~~~~~86 AirbornePculatGROSSBETAANALYSISOFAfteradelayoffiveormoredays,allowingfortheradon-222andradon-220(thoron)daughterproductstodecay,thefiltersarecountedinagas-flowproportionalcounter.Anunusedairparticulatefilter,suppliedbythecustomer,iscountedastheblank.Calculationsoftheresults,thetwosigmaerrorandthelowerlimitofdetection(LLD):RESULT(pCi/m3)((S/T)-(B/t))/(2.22VE)'IWOSIGMAERROR(pCi/m3)=2((S/T2)+(B/t2))1/2/(222VE)LLD(pCi/m3)466(B/t/T)1/2/(2.22VE)where:SBETVGrosscountsofsampleincludingblankCountsofblankCountingefficiencyNumberofminutessamplewascountedNumberofminutesblankwascountedSamplealiquotsize(cubicmeters)73 DETERMINATINFROSSBETAACTIVITYINWATERLEI.DI~NTNDTINTheproceduresdescribedinthissectionareusedtomeasuretheoverallradioactivityofwatersampleswithoutidentiiyingtheradioactivespeciespresent.Nochemicalseparationtechniquesareinvolved.Oneliterofthesampleisevaporatedonahotplate.Asmallervolumemaybeusedifthesamplehasasignificantsaltcontent.Ifrequestedbythecustomer,thesampleisfilteredthroughNo.54filterpaperbeforeevaporation.removingparticlesgreaterthan30micronsinsize.Afterevaporatingtoasmallvolumeinabeaker,thesampleisrinsedintoa2-inchdiameterstainlesssteelplanchetwhichisstampedwithaconcentricringpatterntodistributeresidueevenly.Finalevaporationtodrynesstakesplaceunderheatlamps.Residuemassisdeterminedbyweighingtheplanchetbeforeandaftermountingthesample.Theplanchetiscountedforbetaactivityonanautomaticproportionalcounter.Resultsarecalculatedusingempiricalself-absorptioncurveswhichallowforthechangeineffectivecountingefficiencycausedbytheresiduemass.74 2.0ETENAPABILITYDetectioncapabilitydependsuponthesamplevolumeactuallyrepresentedontheplanchet,thebackgroundandtheefficiencyofthecountinginstrument,anduponself-absorptionofbetaparticlesbythemountedsample.Becausetheradioactivespeciesarenotidentified,nodecaycorrectionsaremadeandthereportedactivityreferstothecountingtime.Theminimumdetectablelevel(MDL)forwatersamplesisnominally1.6picocuriesperliterforgrossbetaatthe4.66sigmalevel(1.0pCi/1atthe2.83sigmalevel),assumingthat1.literofsampleisusedandthat>1gramofsampleresidueismountedontheplanchet.TheseQguresarebaseduponacountingtimeof50minutesanduponrepresentativevaluesofcountingefficiencyandbackgroundof0.2and1.2cpm,respectively.TheMDLbecomessignificantlylowerasthemountweightdecreasesbecauseofreducedself-absorption.Atazeromountweight,the4.66sigmaMDLforgrossbetais0.9picocuriesperliter.Thesevaluesreflectabetacountingefficiencyof0.38.75 ANALYSISOFSAMPLFORTRIT(GasCounting)WaterApproximately2mlofwaterareconvertedtohydrogenbypassingthewater,heatedtoitsvaporstate,overagranularzincconversioncolumnheatedto400'.Thehydrogenisloadedintoaoneliterproportionaldetectorandthevolumeisdeterminedbyrecordingthepressure.Theproportionaldetectorispassivelyshieldedbyleadandsteelandanelectronic,anticoincidencesystemprovidesadditionalshieldingfromcosmicrays.Calculationoftheresults,thetwosigmaerrorandthelowerlimitdetection(LLD)inpCi/1:RESULT3.234TNVN(CG-B)/(CNVs)ITWOSIGMAERROR=2((CG+B)ht)>/23.234TNVN/((CNVs)(CG-B))4.66(3.234)TNVN(CG)>/2/(htCNVS)where:TN3.234VNVsCNCGBh,ttritiumunitsofthestandardconversionfactorchangingtritiumunitstopCi/1volumeofthestandardusedtocalibratethe-efficiencyofthedetectorinpsiavolumeofthesampleloadedintothedetectorinpsiathecpmactivityofthestandardofvolumeVNthegrossactivityincpmofthesampleofvolumeVSandthedetectorvolumethebackgroundofthedetectorincpmcountingtimeforthesample ANALYSISOFSAMPLESFORTRITIUM(LiquidScintillation)WaterTenmiiiiiitersofwateraremixedwith10miofaliquidscintillation"cocktail"andthenthemixtureiscountedinanautomaticliquidscintiQator.Calculationoftheresults,thetwosigmaerrorandthelowerlimitdetection(LLD)inpCi/1:RESULT(N-B)/(2.22VE)TWOSIGMAERROR=2((N+B)/bt)>/2/(2.22VE)4.66(B/LIIt)1/2/(222VE)where:NB2.22VEthegrosscpmofthesamplethebackgroundofthedetectorincpmconversionfactorchangingdpmtopCivolumeofthesampleinmlefficiencyofthedetectorcountingtimeforthesample77 ANALYSISOFSAMPLESFORSTRONTIUM-89AND-90W~~rStablestrontiumcarrierisaddedto1literofsampleandthevolumeisreducedbyevaporation.StrontiumisprecipitatedasSr(NO3)2usingnitricacid.Abariumscavengeandaniron(ferrichydroxide)scavengeareperformedfollowedbyadditionofstableyttriumcarrierandaminimumof5dayperiodforyttriumingrowth.Yttriumisthenprecipitatedashydroxide,dissolvedandre-precipitatedasoxalate.TheyttriumoxalateismountedonanylonplanchetandiscountedinalowlevelbetacountertoinferSr-90activity.Strontium-89activityisdeterminedbyprecipitatingSrCO3fromthesampleafteryttriumseparation.Thisprecipitateismountedonanylonplanchetandiscoveredwithan80mg/cm2aluminumabsorberforlowlevelbetacounting.MilkStablestrontiumcarrierisaddedto1literofsampleandthesampleisfirstevaporated,thenashedinamuQlefurnace.Theashisdissolvedandstrontiumisprecipitatedasphosphate,thenisdissolvedin3MHN03.Thissolutionispassedthroughacrownetherextractioncolumntoisolateelementalstrontium.Stableyttriumcarrierisaddedandthesampleisallowedtostandforaminimumof5daysforyttriumingrowth.Yttriumisthenprecipitatedashydroxide,dissolvedandre-precipitatedasoxalate.TheyttriumoxalateismountedonanylonplanchetandiscountedinalowlevelbetacountertoinferSr-90activity.Strontium-89isdeterminedbyprecipitatingSrCO~fromthesampleafteryttriumseparation.Thisprecipitateismountedonanylonplanchetandiscoveredwithan80mg/cm2aluminumabsorberforlowlevelbetacounting.ildimnThesampleisfirstdriedunderheatlampsandanaliquotistaken.Stablestrontiumcarrierisaddedandthesampleisleachedinhydrochloricacid.Themixtureisfilteredandstrontiumisprecipitatedfromtheliquid78 portionasphosphate.StrontiumisprecipitatedasSr(N03)2usingfuming(90%)nitricacid.Abariumchromatescavengeandaniron(ferrichydroxide)scavengearethenperformed.Stableyttriumcarrierisaddedandthesampleisallowedtostandforaminimumof5daysforyttriumingrowth.Yttriumisthenprecipitatedashydroxide,dissolvedandre-precipitatedasoxalate.TheyttriumoxalateismountedonanylonplanchetandiscountedinalowlevelbetacountertoinferSr-90activity.Strontium-89activityisdeterminedbyprecipitatingSrC03fromthesampleafteryttriumseparation.Thisprecipitateismountedonanylonplanchetandiscoveredwithan80mg/cm2aluminumabsorberforlowlevelbetacounting.OraniSoliAwetportionofthesampleisdriedandthenashedinamufflefurnace.Stablestrontiumcarrierisaddedandtheashisleachedinhydrochloricacid.Thesampleisfilteredandstrontiumisprecipitatedfromtheliquidportionasphosphate.StrontiumisprecipitatedasSr(N03)usingfuming(90%)nitricacid.Aniron(ferrichydroxide)scavengeisperformed,followedbyadditionofstableyttriumcarrierandaminimumof5daysperiodforyttriumingrowth.Yttriumisthenprecipitatedashydroxide,dissolvedandre-precipitatedasoxalate.Theyttriumoxalateismountedonanylonplanchetandiscountedinalowlevelbetacountertoinferstrontium-90activity.Strontium-89activityisdeterminedbyprecipitatingSrC03fromthesampleafteryttriumseparation.Thisprecipitateismountedonanylonplanchetandiscoveredwithan80mg/cmaluminum2absorberforlowlevelbetacounting.AirParticulatsStablestrontiumcarrierisaddedtothesampleanditisleachedinnitricacidtobringdepositsintosolution.Themixtureisthenfilteredandthefiltrateisreducedinvolumebyevaporation.StrontiumisprecipitatedasSr(N03)2usingfuming(90%)nitricacid.Abariumscavengeisusedtoremovesomeinterferingspecies.Aniron(ferrichydroxide)scavengeisperformed,followedadditionofstableyttriumcarrieranda7to10dayperiodforyttriumingrowth,Yttriumisthenprecipitatedashydroxide,79 dissolvedandre-precipitatedasoxalate.Theyttriumoxalateismountedonanylonplanchetandiscountedinalowlevelbetacountertoinferstron-tium-90activity.Strontium-89activityisdeterminedbyprecipitatingSrC03fromthesampleafteryttriumseparation.Thisprecipitateismountedonanylonplanchetandiscoveredwith80mg/cm2aluminumabsorberforlevelbetacounting.'Calculationsoftheresults,twosigmaerrorsandlowerlimitsofdetection(LLD)areexpressedinactivityofpCi/volumeorpCi/mass:RESULTSr-89TWOSIGMAERRORSr-89LLDSr-89RESULTSr-90TWOSIGMAERRORSr-90LLDSr-90(N/4t-BC-BA)/(2.22VYSDFSR-89ESR-89)2((N/ht+BC+BA)/ht)//(2.22VYSDFSR8gESR8g466((BC+BA)/ht)1/2/(2.22VYSDFSR-89ESR-89)(N/b,t-B)/(2.22VY1Y2DFIFE)2((N/h,t+B)/ht)1/2/(2.22VY1Y2DFEIF))4.66(B/bt)1/2/(222VY1Y2IFDFE)So where:Ntotalcountsfromsample(counts)countingtimeforsample(min)backgroundrateofcounter(cpm)usingabsorberconQgurati2.22BABAYSDFSR-89ESR-89KDFY-90EY-90IFY-90IGY-900.016Y1Y2dpm/pCivolumeorweightofsampleanalyzedbackgroundadditionfromSr-90andingrowthofY-900.016(K)+(K)(EY/abs)(IGY90)chemicalyieldofstrontiumdecayfactorfromthemidcollectiondatetothecountingdateforSR-89efficiencyofthecounterforSR-89withthe80mg/cm.sq.aluminumabsorber(N/bt-BC)Y90/(EY90IF>90DFY90Y1)thedecayfactorforY-90fromthe"milk"timetothemidcounttimeefficiencyofthecounterforY-90ingrowthfactorforY-90fromscavengetimetomilkingtim<theingrowthfactorforY-90intothestrontiummountfrom"milk"timetothemidcounttimetheefficiencyofmeasuringSR-90throughaNo.6absorbertheefficiencyofcountingY-90throughaNo.6absorberbackgroundrateofcounter(cpm)chemicalyieldofyttriumchemicalyieldofstrontiumIFdecayfactorofyttriumfromtheradiochemicalmQkingtimetothemidcounttimeefficiencyofthecounterforY-90ingrowthfactorforY-90fromscavengetimetotheradio-chemicalmilkingtime ANALYSISOFSAMPLESFORIODINF131MilkorWaterTwolitersofsampleareQrstequilibratedwithstableiodidecarrier.Abatchtreatmentwithanionexchangeresinisusedtoremoveiodinefromthesample.Theiodineisthenstrippedfromtheresinwithsodiumhypochloritesolution,reducedwithhydroxylaminehydrochlorideandextractedintotolueneasfreeiodine.Itisthenback-extractedasiodideintosodiumbisulQtesolutionandisprecipitatedaspalladiumiodide.Theprecipitateisweighedforchemicalyieldandismountedonanylonplanchetforlowlevelbetacounting.Thechemicalyieldiscorrectedbymeasuringthestableiodidecontentofthemilkorthewaterwithaspecificionelectrode.Calculationsofresults,twosigmaerrorandthelowerlimitofdetection(LLD)inpCi/1:RESULTVVOSIGMAERROR(N/jR-B)/(2.22EVYDF)2((N/ht+B)/b,t)1/2(2.22EVYDF)=4.66(B/5t)1/2/(2.22EVYDF)where:N=totalcountsfromsample(counts)b,t=countingtimeforsample(min)B=backgroundrateofcounter(cpm)2.22=dpm/pCiV=volumeorweightofsampleanalyzedY=chemicalyieldofthemountorsamplecountedDF=decayfactor'fromthecollectiontothecountingdateE=efficiencyofthecounterforI-131,correctedforselfabsorptioneffectsbytheformulaEEsEs(exp-0.0085M)/(exp-0.0085Ms)efficiencyofthecounterdeterminedfromanI-131standardmountMs=massofPdl2onthestandardmount,mgmassofPdl2onthesamplemount,mg82 GAMBIASPECTROMETRYOFSAMPLESMilkandWaterA1.0literMarinellibeakerisfQledwitharepresentativealiquotofthesample.Thesampleisthencountedforapproximately1000minuteswithashieldedGe(Li)detectorcoupledtoamini-computer-baseddataacquisitionsystemwhichperformspulseheightanalysis.riedlirThSoilsimntAlargequantityofthesampleisdriedatalowtemperature,lessthan100'C.Asmuchaspossible(uptothetotalsample)isloadedintoatared1-literMarinelliandweighed.Thesampleisthencountedforapproximately1000minuteswithashieldedGe(Li)detectorcoupledtoamini-computer-baseddataacquisitionsystemwhichperformspulseheightanalysis.FishAsmuchaspossible(uptothetotalsample)oftheedibleportionofthesampleisloadedintoataredMarinelliandweighed.Thesampleisthencountedforapproximately1000minuteswithashieldedGe(Li)detectorcoupledtoamini-computer-baseddataacquisitionsystemwhichperformspulseheightanalysis.SoilsandSedimentsSoilsandsedimentsaredriedatalowtemperature,lessthan100'C.Thesoilorsedimentisloadedfullyintoatared,standard300cccontainerandweighed.ThesampleisthencountedforapproximatelysixhourswithashieldedGe(Li)detectorcoupledtoamini-computer-baseddataacquisitionsystemwhichperformspulseheightandanalysis.CharalrideAirIodinCharcoalcartridgesarecounteduptofiveatatime,withonepositionedonthefaceofaGe(Li)detectoranduptofouronthesideoftheGe(Li)detector.EachGe(Li)detectoriscalibratedforbothpositions.ThedetectionlimitforI-131ofeachcharcoalcartridgecanbedetermined83 (assumingnopositiveI-131)uniquelyfromthevolumeofairwhichpassedthroughit.IntheeventI-131isobservedfntheinitialcountingofaset,eachcharcoalcartridgeisthencountedseparately,positionedonthefaceofthedetectorAirpmPulThethirteenairborneparticulatefiltersforaquarterlycompositeforeachfieldstationarealignedoneinfrontofanotherandthencountedforatleastsixhourswithashieldedGe(Li)detectorcoupledtoamini-computer-baseddataacquisitionsystemwhichperformspulseheightanalysis.Amini-computersoftwareprogramdefinespeaksbycertainchangesintheslopeofthespectrum.Theprogramalsocomparestheenergyofeachpeakwithalibraryofpeaksforisotopeidentificationandthenperformstheradioactivitycalculationusingtheappropriatefractionalgammarayabundance,halflife,detectorefficiency,andnetcountsinthepeakregion.Thecalculationofresults,twosigmaerrorandthelowerlimitofdetection(LLD)inpCi/volumeofpCi/mass:84 RESULT'IWOSIGMAERROR(S-B)/2.22tEVFDF)2(S+B)//(2.22tEVFDF)4.66(B)//(2.22tEVFDF)0where:S2.22Area,incounts,ofsamplepeakandbackground(regionofspectrumofinterest)Backgroundarea,incounts,undersamplepeak,determinedbyalinearinterpolationoftherepresentativebackgroundsoneithersideofthepeaklengthoftimeinminutesthesamplewascounteddpm/pCidetectoreQiciencyforenergyofinterestandgeometryofsamplesamplealiquotsize(liters,cubicmeters,kilograms.orgrams)fractionalgammaabundance(specificforeachemittedgamma)decayfactorfromthemid-collectiondatetothecountingdate ENVIRONMENTALDSIMETRYTeledyneIsotopesusesaCaS04.Dythermoluminescentdosimeter(TLD)whichthecompanymanufactures.Thismaterialhasahighlightoutput,negligiblethermaQyinducedsignalloss(fading),andnegligibleselfdosing.Theenergyresponsecurve(aswellasallotherfeatures)satisfiesNRCReg.Guide4.13.TransitdosesareaccountedforbyuseofseparateTLDs.FoQowingthefieldexposureperiodtheTLDsareplacedinaTeledyneIsotopesModel8300.OnefourthoftherectangularTLDisheatedatatimeandthemeasuredlightemission(luminescence)isrecorded.TheTLDisthenannealedandexposedtoaknownCs-137dose;eachareaisthenreadagain.ThisprovidesacalibrationofeachareaofeachTLDaftereveryGelduse.Thetransitcontrolsarereadinthesamemanner.RTWOSIGMAERROR-2((D>D)2+(D2D)2+(D3-D)2+(D4"D)2)/3)1/2CalculationsofresultsandthetwosigmaerrorinnetmilliRoentgen(mR):ESULTD=(Dl+D2+D3+D4)/4WHERE:D1thenetmRofarea1oftheTLD,andsimilarlyforD2,D3,andD4DlI1K/R1-A~\theinstrumentreadingofthefielddoseinarea1KRItheknownexposurebytheCs-137sourcetheinstrumentreadingduetotheCs-137doseonarea1QaveragedoseinmR,calculatedinsimilarmannerasabove,ofthetransitcontrolTLDsDtheaveragenetmRofall4areasoftheTLD.86 APPENDIXDSUMNARYOFEPAINTERLABORATORYCOMPARISONS87 EPAINTERLABORATORYCOMPARISONPROGRAMTeledyneIsotopesparticipatesintheEPAInterlaboratoryComparisonProgramtothefullestextentpossible.Thatis,weparticipateintheprogramforallradioactiveisotopespreparedandatthemaximumfrequencyofavaQability.Inthissectiontrendinggraphs(since1981)andthe1992datasummarytablesarepresentedforisotopesinthevarioussamplemediaapplicabletotheDonaldC.CookPlant'sRadiologicalEnvironmentalMonitoringProgram.Thefootnotesofthetablediscussinvestigationsofproblemsencounteredinafewcasesandthestepstakentopreventreoccurrence.88 USEPAINTERLABORATORYCOMPARISONPROGRAM1992EnvironmentalCollectionDateMediaNuclideEPAResult(a)TeledyneIsotoesResult(b)01/17/92WaterOl/31/92WaterSr-89Sr-90Gr-AlphaGr-Beta51.0220.0230.0230.025.05.08.05.045.67218.67225.00231.6721.531.534.000.5802/07/92Water02/14/92WaterI-131Co-60Zn-65Ru-106Cs-134Cs-137Ba-13359.0240.02148.02203.0231.0249.0276.026.05.015.020.05.05.08.061.00238.002145.002191.00229.00253.67k75.6721.732.651.7321.662.002.527.5102/21/92Water03/06/92WaterH-3Ra-226Ra-2287904.0210.1215.52790.01.53.97800.002100.005.30+0.9520.00k2.00(c)03/27/92AirFilter04/14/92WaterGr-AlphaGr-BetaSr-90Cs-137Gr-BetaSr-89Sr-90Co-60Cs-134Cs-137Gr-AlphaRa-226Ra-2287.0241.0215.0210.02140.0215.0217.0+56.0224.0222.0240.0214.9214.025.05.05.05.021.05.05.0.5.05.05.010.02.23.511.33243.002,12.67%11.00298.00216.00214.33255.00222.67224.67234.33213.33215.3320.581.000.581.732.001.001.151.731.533.062.082.080.58(d)

USEPAINTERLABORATORYCOMPARISONPROGRAM1992EnvhonmentalCollectionDateMediaNuclideEPAResult(a)TeledyneIsotoesResult(b)04/24/92Milk05/08/92WaterSr-89Sr-90I-131Cs-137KSr-89Sr-9038.0229.0278.0239.0k1710.0229.0k8.025.05.08.05.086.05.05.036.00226.00'1.67246.6721680.00224.0026.3324.580.004.042.3172.111.730.58(e)05/15/92WaterGr-AlphaGr-Beta15.0244.025.05.010.00244.6721.001.1506/05/92WaterCo-60Zn-65Ru-106Cs-134Cs-137Ba-13320.0299.02141.0215.0215.0298.025.010.014.05.05.010.021.332107.002127.00215.00216.00293.3320.583.6111.531.001.006.0306/19/92Water07/17/92Water08/07/92WaterH-3Ra-226Ra-228I-13124.9k16.723.74.245.026.02125.02347.02100.00223.33217.33243.33+0.001.150.586.0308/28/92AirFilterGr-AlphaGr-BetaSr-90Cs-137Co-60Zn-65RQ-106Cs-134Cs-137Ba-13330.0269.0225.0218.0210.02148.02175.028.028.0274.028.010.05.05.05.015.018.0'5.05.07.027.33269.00222.67216.67k11.002156.672164.3348.6728.67275.6720.581.001.152.311.000.587.510.580.589.2990 USEPA,INTERLABORATORYCOMPARISONPROGRAM1992EnvironmentalCollectionDateMediaNudideEPAResult(a)TeledyneIsotoesResult(b)09/18/92Water09/11/92WaterGr-AlphaGr-BetaSr-89Sr-9045.0211.050.025.020.025.015.025.045.00+2.0045.0021.7316.0021.0013.0021.009/25/92MilkSr-89Sr-90I-131Cs-137K15.0215.002100.0215.021750.025.05.010.05.088.016.0022.0012.6721.1599.0027.2115.6721.151660.00285.4410/23/92WaterH-35962.02596.05666.67257.74Footnotes:(a)EPAResults-Expectedlaboratoryprecision(1sigma).UnitsarepCi/literforwaterandmilkexceptKisinmg/liter.UnitsaretotalpCiforairparticulateAlters.(b)TeledyneResults-Average2onesigma.UnitsarepCi/literforwaterandmilkexceptKisinmg/liter.UnitsaretotalpCiforairparticulatefHters.(c)AlllabdatasheetswereveriAedforaccuracy.Threedifferentdetectorswereusedwithaliquotingrowthtimesof9and19days.Resultsrangedfrom4to6pCi/l.Dilutionerrorhasbeendeterminedtobetheprobablecauseforthedeviationfromthespikevalue.Internalbiweeklyspikeanalyseshavebeenincontrol.Correctiveactionincludesimplementationofadilutionformtorecordaliquotandsolventvolumes.Entrieswillbemadebythetechnicianandreviewedbythesupervisor.(d)Therewaslargefractionoflowenergybetaemitters(Co-60andCs-134)inthesample.Detectoremciencydecreaseswithdecreasingenergy.Wearerequiredtocalibratewiththehighenergybetaemitters(Cs-137andSr-90).Nocorrectiveactionnecessary.(e)ThereisnoapparentreasonforthehighCs-137results.ThesamplegeometryanddetectorefficiencieswereveriQedtobecorrect.TheTotalKand1-131bygammaspectroscopywereingoodagreementwithEPAvalues.Thereisnotrendandresultswerewithin23sigmasonoactiontaken.91 160TREND1NGGRAPH5EPACROSSCHECKPROGRAMGROSSBETAINA)RPARTICULATES140120O1OOC!0806040201981198219831984198519861987198819891990199119921993'8/25/89EPAtestinvalid.Tlk3Sigma4EPAk3Sigma EPACROSSCHECKPROGRAMGROSSALPHAINAIRPARTICULATESO4020201981198219831984198519861987198819891990199119921993Tl23Sigma4EPA23Sigma EPACROSSCHECKPROGRAMGROSSBETAINAIRPARTICULATES160140120100C$P806040201981198219831984198519861987198819891990199119921993'8/25/89EPAtestinvalid.Tlk3Sigma4EPAt3Sigma EPACROSSCHECKPROGRAMSTRONTIUM-90INAIRPARTICULATES8060O40t50I-20-201981198219831984.198519861987198819891990-199119921993Tlk3sigmaoEPA+3sigma EPACROSSCHECKPROGRAMCESIUM-137INAIRPARTICULATES60O4020201981198219831984198519861987198819891990199119921993Tl23sigma4EPACT3sigma EPACROSSCHECKPROGRAMSTRONTIUM-89INMILK1008060~wO04020201981198219831984198519861987198819891990199119921993Tlk3sigma4EPAk3sigma EPACROSSCHECKPROGRAMSTRONTIUM-90INMILKImI400CL20201981198219831984198519861987198819891990199119921993Tlk3sigma4EPAk3sigma EPACROSSCHECKPROGRAMPOTASSIUM-40INMILK260024002200LeI1800016001400120010001981198219831984198519861987198819891990199119921993oTlggsigmaoEPAi3sigma EPACROSSCHECKPROGRAMIODINE-131INMILK140120100~ae80Q604020-201981198219831984198519861987198819891990199119921993Tlk3sigma4EPAk3sigma EPACROSSCHECKPROGRAMCESIUM-137INMILK10080LoO60OCL40201981198219831984198619861987198819891990199119921993TI13sigma4EPAR3sigma EPACROSSCHECKPROGRAMGROSSALPHAINNATER140120100~e800604020-201984198519861987198819891990199119921993Tlk3Sigma4EPAk3Sigma 220EPACROSSCHECKPROGRAMGROSSBETAINWATER(pg.2of2)200180160140O120O10080604020-2019861987198819891990199119921993TlASsigmaoEPA%3sigma 220EPACROSSCHECKPROGRAMGROSSBETAINWATER(pg.1of2)20018016014012010080604020-20198119821983198419851986Tlk3sigma4EPAk3sigma 18000EPACROSSCHECKPROGRAMTRITIUMINWATER(pg.2of2)160001400012000I100000CL8000600040002000198519861987198819891990199119921993Tlk3sigmaoEPAk3sigma 5000EPACROSSCHECKPROGRAMTRITIUMINWATER(pg.1of2)400030002000CL1000-100019811982198319841985DTlk3sigmaoEPAk3sigma 100EPACROSSCHECKPROGRAMCOBALT-60INWATER(pg.2of2)80604020-201988198919901991199219930Tlk3sigmaoEPAk3sigma 100EPACROSSCHECKPROGRAMCOBALT-60INWATER(pg1of2)80604020-2019811982198319841985198619871988DTlk3sigmaoEPAk3sigma 100EPACROSSCHECKPROGRAMCESIUM-134INWATER(pg.2of2)80604020-20198819891990199119921993aTl%3sigmaoEPA%3sigma 100EPACROSSCHECKPROGRAMCESIUM-134INWATER(pg.1of2)8060iwI40OCL20-20198119821983198419851986198719880TI%3sigmaoEPAk3sIgma EPACROSSCHECKPROGRAMIODINE-131INWATER160140120100O8000604020201981198219831984198519861987198819891990199119921993Tl%3sigmaoEPAf3sigma EPACROSSCHECKPROGRAMCESIUM-137INWATER(pg.2of2)12010080604020-201988198919901991199219930Tlk3sigmaEPAi3sigma 80EPACROSSCHECKPROGRAMCESIUM-137INWATER(pg.1of2)604020-201981198219831984198519861987aTlk3sigma4EPAk3sigma 100EPACROSSCHECKPROGRAMSTRONTIUNI-89INWATER(pg.2of2)8060OV4020-201985198619871988198919901991199219931994aTlf3SigmaoEPAk3Sigma 100EPACROSSCHECKPROGRAMSTRONTIUM>>89INWATER(pg.1of2)8060O400CL20-20198119821983198419850Tlk3sigmaEPAk3sigma EPACROSSCHECKPROGRAMSTRONTIUM-90INWATER806040O0202019811982198319841985198619871988198919901991199219930Ti+3sigmaoEPAk3sigma APPENDIXEREMPBASH'LINGANDANALYTICALEXCEPTIONS117 PROGRAMEXCEPTIONSREMPdeviationsfor1992arelistedattheendofthisappendix.Wherepossible,thecausesofthedeviationshavebeencorrectedtopreventrecurrence.Therewerefiveincidentsin1992involvingairsamplers.Threeofthefiveincidentsinvolvedactualmalfunctionofairsamplingequipment.Thisisamarkedimprovementover1991andisweQbelowtheindustryaverage.Theremainingtwoincidentsresultedfromapowersurgeduringathunderstormwhichdisabledthepowersupplytotheairstation.On1/10/92amilksamplewasnotobtainedGomtheWyantFarm.Thewholesaler,whocollectsmilkfromdairyfarmers,changedhisrouteandarrivedattheWyantFarmearlierthanusual.TheREMPsamplecollectormodifiedhiscollectionroutetopreventrecurrence.TheZelmerFarmnotifiedtheD.C.CookPlantoftheirintentiontogooutofthedairybusiness.TheFreehlingFarmagreedtoparticipateintheREMPMilkSamplingProgram,thusreplacingtheZelmerFarm.TheLozmackFarmwasdiscontinuedtopreventredundantsamplinginthesamelandsector.During1992therewerethreeoccurrencesinvolvingthechangeindifferentialpressure(Delta'P')measuredacrossairsamplefiltermedia.Twooftheseoccurrencesinvolved"settling"ofthecharcoalinsidetheTEDAcharcoalcartridges.ThisissuewasresolvedbyutilizingmoreefficientTEDAcartridges,whicharelessproneto"settling".AnincreaseintheDelta'P'asmeasuredattheSouthBendairstationandwasattributedtodustloading.Thesamplingfrequencywasincreasedtosemi-weeklyfortwosampleperiodswhichresolvedtheissue.Eachoftheairsamplersareequippedwithapressurecompensatedregulatorwhichadjuststhedifferentialpressurewhenflowisimpeded.118 REMPEXCEPTIONSFORSCHEDULEDSAMPLINGANDANAI.YSISDURING1992StationDescritionDateofSamlinReason(s)forLoss/ExcetionA-2AirParticulate/AirIodineSouthBendAirParticulate/AirIodineA-4AirParticulate/AirIodineSouthBendAirParticulate/AirIodineA-5AirParticulate/AirIodineA-4A-4AirParticulate/AirIodineAirParticulate/AirIodineLozmackMilkSouthBendAirParticulate/AirIodine02/24/92/03/02/9203/09/9205/04/9205/08/92/05/14/9206/22/9208/17/9209/14/9209/21/9201/01/92LowDelta'P'eadingsdueto"settling"ofcharcoalmedia.HighDelta'P'eadingsdueto"settling"ofcharcoalmedia.Blownfuse;lowsamplevolume.Collection&equencysemi-weeklyduetodustloading.Unitfoundoff.Blownfuse;lowsamplevolume.Electricityoff;lowsamplevolume.Poweroutage;nosampleavailable.ISamplingatLozmackFarmdiscontinued.FreehlingFarmclosertoPlant.WyantZelmerMilkMilk01/10/9203/20/92Sampleunavailable.Sampleunavailableduetofarmergoingoutofdairybusiness.ReplacedbyFreehlingFarm.119 APPENDIXF1992LANDUSECENSUS120 AE'PENDIXFSUMMARYOFTHE1992LANDUSECENSUSTheLandUseCensusisperformedtoensurethatsignificantchangesintheareasintheimmediatevicinityoftheplantsiteareidentified.AnyidentifiedchangesareevaluatedtodeterminewhethermodificationsmustbemadetotheREMPorotherrelatedprograms.Nosuchchangeswereidentifiedduringthe1992LandUseCensus.Thefollowingisasummaryofthe1992results.MilkFarmSurveThemilkfarmsurveyisperformedtoupdatethelistofmilkfarmslocatedintheplantarea,toidentifytheclosestmilkfarmineachlandsector,andtoidentifythenearestmilkanimalwhosemilkisusedforhumanconsumption.ThemQkfarmsurveyfortheCookPowerPlantwasconductedonSeptember24,1992.In1992therewerenoadditionsandfivedeletionsfromthelistofareamilkfarms.NoneofthedeletedmilkfarmswereinvolvedintheCookPlantmilksamplingprogram.Thepreviouslyidentifiedmilkanimalcontinuestobetheclosestmilkanimaltotheplant.Themilkanimalislocated2.5milesfromtheplant'scenterlineaxistotheclosestedgeoftheanimal'spasture.ResidentialSurvTheresidentialsurveyisperformedtoidentifytheclosestresidencetotheplantineachlandsector.The1992AnnualResidentialLandUseSurveywascompletedonSeptember28,1992.Thissurveywasconductedperprocedure12THP6010ENV.059,usinganupdatedlistofnewresidentialbuildingpermitsfromLakeTownshipandprevioussurveymaps.TheresidenceclosesttothePlantineachlandsectorremainsunchangedfromthepreviousreportingyear.121 BroadleafSurvInaccordancewithTechnicalSpeciQcation(T/S)3.12.2,broadleafvegetationsamplingisperformedinlieuofagardencensus.Broadleafsamplingisperformedtomonitorforplantimpactontheenvironment.Thesamplesareobtainedatthesiteboundary.Thebroadleafanalyticalresultsfor1992werelessthantheTechnicalSpeciQcationLLDs.122 Figure8INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLF~PMilkandAnimalSurvey-1992SxmreySectorYearDistanceMilesNameAddressDGN/AN/AN/AN/AN/AN/A5.15.110.510.56.86.84.14.17.07.07.77.71212NomilkanimalsNomQkanimalsNomQkanimalsNomilkanimalsNomilkanimalsNomQkanimalsGeraldTotzkeGeraldTotzkeAndrewsUniversityAndrewsUniversityLeeNelsonLeeNelsonG.G.Shuler&SonsG.G.Shuler&SonsGeorgeFreehlingGeorgeFreehlingJerryWarmbeinJerryWarmbelnKennethTappanKennethTappanN/AN/AN/AN/AN/AN/A6744TotzkeRd.,Baroda6744TotzkeRd.,BarodaBerrienSpringsBerrienSpringsRFD1,Box390A,SnowRd,BarodaRFD1,Box390A,SnowRd.BarodaRFD1,SnowRd.,BarodaRFD1,SnowRd.,Baroda2221W.GlendoraRd.,Buchanan2221W.GlendoraRd.,Buchanan14143MllRd.,ThreeOaks14143MllRd.,ThreeOaksRt.2,KrugerRd,ThreeOaksRt.2,KrugerRd,ThreeOaksAllothersectorsareoverwater.(a)ReportingYearfb)Yearpriortoreportingyear.123 INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTResident)a)LandUseSurvey-1992SectorHouse(t)InFeetStreetAddress216121612165216511-11-0006-0004-01-711-11-0006-0004-01-711-11-0006-0004-09-211-11-0006-0004-09-2lierDrive,RosemiyBeachlierDrive,RosemiyBeachlierDrive,RosemaryBeachlierDrive,RosemaryBeachDH10103093309367335?3356315631539253923728372849444944336633663090309011-11-6800-0028-00-011-11-6800-0028-00-011-11-0005-0036-01-811-11-0005-0036-01-811-11-0005-0009-07-011-11-0005-0009-07-011-11-0008-0015-03-111-11-0008-0016-03-111-11-0007-0013-01-411-11-0007-0013-01-411-11-8600-0004-00-111-11-8600-0004-00-111-11-0007-0010-02-311-11-0007-0010-02-311-11-0007-0010-03-111-11-0007-0010-03-1LakeRoad.RosemaxyBeachLakeRoad,RosematyBeach7500ThortonDrive7500ThortonDrive7927RedArrowHighway7927RedArrowHighway8197RedArrowHighway8197RedArrowHighwayLivingstonRoadLivingstonRoadWildwoodWildwoodLivingstonHillsLivingstonHillsLivingstonHillsLivingstonHills(I)HousesindicatedIsthereferencenumberusedonmapwhenobtatnlngtherawAciddata.(a)ReportingYear(b)Yearpriortoreportingyear.

~-I~~.~~kMeEKSYI'III,WS~'@PS,'SJgSwh~lAe~/I~I~~ggfgIII)WARSki'CHALi%.+L%)g~~=)I%g4+>;aSibie.C&aR'.,'9w:-4f.0%5--""a~ipar,.>x%lWRlh'.-.."R~/k~';$Ã+~iilga,~-NPHlt ssPg0rC0',':to~6~olln~~t~/c/o,g)')~+~~I~".+gNJJo'LX0..~DUSPSUR]992~ygygpgg)pNTM-0O!m..~oP0rarcalOO~0wr~orassL'o1s':::->+s~ooo~~o~IQTHPTHPg)iom<'>>~I/.IJ/CI/'IGJHg)i!RlhVAfo')racgbo{1lYc(lAt'c~,oem~sc'o'.py~gss\dI'lJ,~~~MS.sI~4.h;~..a4-.!.s.oaaaaasasa*lp4g~vp'o.gP'.o0s:(C~~~cbig:W,@'co,~stlaaajtt~~l..f,)"ot+cc,0Ogoiolo~fIorA.ji~aaroo+~loo~t'~l~~~lCr%ttttrt APPENDIKGSU5HdARYOFTHEPRE-OPERATIONALRADIOLOGICALMONITORINGPROGRAM127 SUMMARYOFTHEPREOPERATIONALRADIOLOGICAL,MONITORINGPROGRAMIApreoperationalradiologicalenvironmentalmonitoringprogramwasperformedfortheDonaldC.CookNuclearPlantfromAugust1971untiltheinitialcriticalityofUnit1onJanuaxy18,1975.TheanalysesofsamplescollectedinthevicinityofthenuclearpowerplantwereperformedbyEberlineInstrumentCorporation.Thesummaxyofthepreoperationalprogrampresentedinthisappendixisbasedonthesevensemi-annualreportscoveringtheperiod.Thepurposeofthissuxxxmaxyistoprovideacomparisonoftheradioactivitymeasuredintheenvironsoftheplantduringthepre-startupofUnit1andtheradioactivitymeasuredin1992.AsstatedinthereportfortheperiodofJuly1toDecember31,1971,thepurposesofapreoperationalradiologicalmonitoringprograminclude:(a)"Toyieldaveragevaluesofradiationlevelsandconcentrationsofradioactivematerialinvariousmediaoftheenvironment.(b)Toidentifysamplelocationsand/ortypesofsamplesthatdeviatefromtheaverages.(c)Todocumentseasonalvariationsthatcouldbeerroneouslyinterpretedwhenthepowerstationisoperating.(d)Toindicatetherangeofvaluesthatshouldbeconsidered"background"forvarioustypesofsamples.(e)To"prooftest"theenvironmentalmonitoringequipmentandprocedurespriortooperationofthenuclearpowerstation.(h)ToprovidebaselineinformationthatwiOyieldestimatesofthedosetoman.ifany,whichwillresult5omplantoperation.",Thediscussionthatfollowsisforthevarioussamplemediacollectedandanalyzedinboththepreoperationalperiodandduring 1992.Analysesperformedduringthepreoperationalbutnotrequiredin1992,arenotdiscussed.ThegrossbetaactivityinairparticulateQltersrangedfrom0.01to0.17pCi/m3fromthemiddleof1971tothemiddleof1973.InJuneof1973andinJuneof1974thePeople'sRepublicofChinadetonatedatmosphericnucleartests.Asaresulttherewereperiodsduringwhichthegrossbetaresultswereelevatedtoashighas0.45pCi/m3withnostatisticallysignificantdifferencesbetweenindicatorandbackgroundstations.Bytheendofthepreoperationalperiodthevalueswereapproximately0.06pCi/m3.ThegammarayanalysesofcompositedairparticulatefQtersshowed"traceamounts"ofQssionproducts,Ce-144,Ru-106,Ru-103,Zr-95,andNb-95,theresultsoffalloutfrompreviousatmosphericnucleartests.Cosmogenicallyproducedberyllium-7wasalsodetected.Thedirectradiationbackgroundasmeasuredbythermoluminescentdosimeters(TLD)rangedbetween1.0and2.0mRem/weekduringthethreeandone-halfyearsperiod.Milksamplesduringthepreoperationalperiodwereanalyzedforiodine-131andbygammarayspectroscopy(andforstrontium-89andstrontium-90).Allsampleshadnaturallyoccurringpotassium-40withvaluesrangingbetween520and2310pCi/liter.Cesium-137wasmeasuredinmanysamplesafterthetwoatmosphericnucleartestsmentionedabove.Thecesium-137activityranged&om8to33pCi/liter.Iodine-131wasmeasuredinfourmilksamplescollectedJuly9,1974.Thevaluesrangedbetween0.2and0.9pCi/liter.Lakewatersampleswerecollectedandanalyzedfortritiumandbygammarayspectroscopy.Tritiumactivitieswerebelow1000pCi/literandtypicallyaveragedabout400pCi/liter.Noradionuclidesweredetectedbygammarayspectroscopy.129 Gammarayspectroscopyanalysesoflakesedimentdetectednaturalabundancesofpotassium-40,uraniumandthoriumdaughters,andtracesofcesium-137below0.1pCi/gwhichisattributedtofallout.Gammaspectroscopyanalysesoffishdetectednaturalabundancesofpotassium-40andtracesofcesium-137,thelatterattributedtofallout.Drinkingwateranalysiswasnotpartofthepreoperationalprogram.130 APPENDIXHSUMMARYOFTHEREMPQUALITYCONTROLPROGRAM131 SUIHlHARYOFTHEREMPQUALXXYCONTROLPROGRAMTheplantprocedureforimplementingthequalitycontrolprogramreferencesRegulatoryGuide4.15.Theprogramutilizesblank,replicateandspikedsampleswithinfourdiferentparameters;gammaisotopic,tritium,iodineandgrossbeta.TheblankandreplicatesamplesarepreparedattheD.C.CookPlantandthespikedsamplesarepreparedbyTeledyneIsotopes.Twentyfivequalitycontrolanalyseswereperformedduring1992.Overninetypercent(23)ofthesamplesanalyzedgaveacceptableresults,howevertwosamplesdidnotmeettheacceptancecriteriaof2twostandarddeviationsfromtheknownvalue.Thethirdquartertritiumsampledidnotmeettheacceptancecriteria.Teledyneconductedaninvestigationwhichincludedreviewinglabprocedures.technicianprotocolandverificatioofinstrumentcontrolcharts.Anewsamplewaspreparedandgaveacceptableresults.Thefourthquartergrossbetasampledidnotmeettheacceptancecriteria.TeledyneIsotopesconductedanacceptableinvestigationtodeterminetherootcause.Theanalyseswasrepeatedwithacceptableresults.132 APPENDIXISUMEGQtYOFTHESPIKEANDBLANKSAMPLEPROGRAM133 SUMMARYOFTHESPIKEANDBLANKSdQMPLEPROGRAMThefollowingtableslisttheblanksandspikedwatersamplesanalyzedduring1992fortheTeledyneIsotopesIn-houseQualityAssuranceProgram.Analysisdateisanalogoustocollectiondatetoidentifyweeklyanalysisofsamples.Threeanalysesforgrossbetaactivitywerereportedoutsidethespecifiedacceptableranges.NodocumentedcorrectiveactionwastakenbecauseinaccordancewithSection9.1ofourQualityControlManual(IWL-0032-365),theacceptancecriteriaforaparticularanalysis"iswithin3standarddeviationsoftheEPAonesigma.onedeterminationasspecifiedintheEnvironmentalRadioactiveLaboratoryStudiesProgramEPA-600/4-81-004,Table3,Page8".Forgrossbetaactivitybelow100pCi/1thecontrollevelatwhichcorrectiveactionmustbetakenis215pCi/1.Thequalityassurancedepartmentoperationallyinvestigatesgrossbetaspikeresultswhichexceedtheonestandarddeviation,onedeterminationlevels(25pCi/1),becauseofpreviousexperienceinreportingresultswithinthatlevel.Controlchartsforgrossalphaandbetaspikesdidnotindicateanybiasinresults.ForthetritiumspikesbygasanalysisthethreestandarddeviationsoftheEPAonesigma,onedeterminationwouldbegreaterthan1000pCi/1foraspikelevelof1500pCi/1.Thequalityassurancedepartmentoperationallyinvestigatestritiumspikeresultswhichexceedk200pCi/1.Controlchartsindicatedalowbiasintritiumspikeresultswithonlyfiveoutofthirty-sevenmeasurementsoutsidethe15%operationalacceptancecriteria.InAugust1992thegascounterswereremovedfromservice(notasaconsequenceofthequalitycontrolsampleresults)andwasnotreturnedtoservice.Sampleswerecountedoritheliquidscintillationcounterwhichexhibitedexcellentperformancewithoutanyobviousbiasinqualitycontrolsampleresultsthroughout1992.

TeledyneIsotopesIn-HouseSpikedSampleResults-1992WaterAna~sGrossAlphaGrossBetaGamma(Eu-154)H-3(G)H-3(LS)6203762372632406422364802654046620166965677046818768967699417039971154718047281574501751137613775706766867745878081792247991880653814878260483361842378425685164SikeLevels112522k51.420.2E051.420.3E031.420.3E04GROSSALHEAAniD01/02/9201/08/9201/15/9201/22/9201/29/9202/05/9202/12/9202/19/9202/26/9203/04/9203/11/9203/18/9203/25/9204/01/9204/08/9204/15/9204/22/9204/29/9205/06/9205/13/9205/20/9205/27/9206/03/9206/10/92'6/17/9206/24/9207/01/9207/08/9207/15/9207/22/9207/29/9208/05/92AccetableRanCi6-1617-271.2-1.6E051.1-1.7E031.1-1.7E04Acvii11.320.2EOl1.120.2E018.821.6E001.5+0.3EOl9.521.8E009.021.9E001.020.2EOl1.120.2E019.4k1.7E001.320.2EOl1.120.2EOl1.420.2E011.620.2E019.521.6E008.921.5E008.621.7E009.821.6E001.220.2EOl1.220.2E011.220.2EOl1.420.2EOl1.620.2EOl1.420.2E011.320.2E011.420.2E018.321.6E001.220.2E011.220.2E011.120.2EOl1.320.2EOl1.220.2EOl1.0+0.2E01135 Teledynehotopesin-HouseSpikedSampleResults-1992WaterAnalydsGrossAlphaGrossBetaGamma(Eu-154)H-3(G)H-3(LS)6203762372632406422364802654046620166965677046818768967699417039971154718047281574501751137613775706766867745878081792247991880653814878260483361842378425685164iceLevel112522k51.420.2E051.520.3E031.520.3E04GROSSALPHAAnisDe01/02/9201/08/9201/15/9201/22/9201/29/9202/05/9202/12/9202/19/9202/26/9203/04/9203/11/9203/18/9203/25/9204/01/9204/08/9204/15/9204/22/9204/29/9205/06/9205/13/9205/20/9205/27/9206/03/9206/10/9206/17/9206/24/9207/01/9207/08/9207/15/9207/22/9207/29/9208/05/92etableRan6-1617-271.2-1.6E051.3-1.7E031.3-1.7E04Activii11.320.2E011.120.2E018.821.6E001.520.3EOl9.521.8E009.021.9E001.020.2EOl1.120.2E019.4k1.7E001.320.2E011.120.2EOl1.420.2EOl1.620.2EOl9.521.6E008.921.5E008.621.7E009.821.6E001.220.2E011.220.2E011.240.2E011.420.2E,011.620.2E011.420.2EOl1.320.2E011.420.2E018.321.6E001.220.2E011.220.2EOl1.120.2E011.320.2E011.220.2EOl1.020.2EOl TI¹865548775687896889268894390049907129101991750932819344993958945949528296008968039730998048990650010900123TI¹62036623716323964222648016540366200669646770468187689676994170399711547180472815745017511376137GROSSALPHA(Cont.)08/12/9208/19/9208/26/9209/02/9209/09/9209/16/9209/23/9209/30/9210/07/9210/14/9210/21/9210/28/9211/04/9211/11/9211/18/9211/25/9212/02/9212/09/9212/16/9212/23/9212/30/92GROSSBETAisDate01/02/9201/08/9201/15/9201/22/9201/29/9202/05/9202/12/9202/19/9202/26/9203/04/9203/11/9203/18/9203/25/9204/01/9204/08/9204/15/9204/22/9204/29/9205/06/92Acti1.220.2E011.220.2EOl1.820.3E011.320.2E011.320.2EOl1.320.2E011.120.2E018.721.4E001.220.2EOl1.420.2EOl1.020.2EOl6.121.4E001.420.2E011.320.2E011.020.2EOl9.121.5E001.420.2EOl1.220.2EOl1.120.2E011.120.2EOl1.320.2EOl1.920.1E011.8+0.1EOl2.120.2E012.620.2EOl1.62O.lE011.52O.lE012.720.2E011.720.1E012.120.2EOl1.8k0.2E012.02O.lE012.120.2EOl2.5k0.2EOl1.92O.lEOl2.02O.lE012.320.2EOl2.320.2EOl2.420.2EOl2.12O.lEOl137 TI¹75706766867745878081792247991880653814878260483361842378425685164865548775687896889268894390049907129101991750932819344993958945949528296008968039730998048990650010900123TI¹62042623776324564228648076540966206GROSSBETA(Cont.)05/13/9205/20/9205/27/9206/03/9206/10/9206/17/9206/24/9207/01/9207/08/9207/15/9207/22/9207/29/9208/05/9208/12/9208/19/9208/26/9209/02/9209/09/9209/16/9209/23/9209/30/9210/07/9210/14/9210/21/9210/28/92ll/04/9211/11/9211/18/9211/25/9212/02/9212/09/9212/16/9212/23/9212/30/92GAMIN%A(Eu-154)~A~Ol/02/9201/08/9201/15/9201/22/9201/29/9202/05/9202/12/92Activi2.6+0.2E011.920.1EOl2.320.2EOl2.5k0.2EOl1.92O.lEOl1.820.1EOl2.320.2E011.22O.lEOl2.020.2EOl2.3+0.2EOl2.320.2E012.120.2E011.92O.lE012.320.2EOl2.320.2E012.520.2EOl2.320.2EOl2.320.2EOl2.520.2E012.320.2EOl2.020.1EOl2.220.2E012.420.2EOl2.520.2EOl2.0k0.2EOl2.320.2E012.220.2E012.920.2E012.02O.lE012.020.1EOl1.7+O.lE012.320.2EOl2.220.2E012.320.2E011.4120.14E051.3620.14E051.4320.14E051.3820.14E051.44k0.14E051.4620.15E051.4520.15E05 TI¹6697067709681926897269946704047115971809728207450675118761427571176691774637808679229799238065881492826098336684242845318516986559877618790188931889489005490717910249175593286934549396194597952859680697312980520011200126GAMMA(Eu-154)i~iioi02/19/9202/26/9203/04/9203/11/9203/18/9203/25/9204/01/9204/08/9204/15/9204/22/9204/29/9205/06/9205/13/9205/20/9205/27/9206/03/9206/10/9206/17/9206/24/9207/01/9207/08/9207/15/9207/22/9207/29/9208/05/9208/12/9208/19/9208/26/9209/02/9209/09/9209/16/9209/23/9209/30/9210/07/9210/14/9210/21/9210/28/92ll/04/9211/11/9211/25/9212/02/9212/09/9212/23/9212/30/92Activi1.3621.4321.4021.4021.43k1.4821.41+1.4021.4221.4221.4621.4121.4621.3921.4321.4621.4221.4621.5021.46k1.4421.4821.47k1.4821.4521.3621.4921.4721.4021.4621.4521.49k1.2821.4521.4821.3921.4821.4921.4821.4821.43+1.5121.5021.45+0.14E050.14E050.14E050.14E050.14E050.14E050.14E050.14E050.14E050.14E050.15E050.14E050.15E050.14E050.14E050.15E050.14E050.15E050.15E050.15E050.40E050.15E050.15E050.15E050.15E050.14E050.15E050.15E050.14E050.15E050.15E050.15E050.13E050.15E050.15E050.14E050.15E050.15E050.15E050.15E050.14E050.15E050.15E050.15E05139 TI0TRITIUM%-(H-3)A~i01/02/9201/08/9201/15/9201/22/9201/29/9202/05/9202/12/9202/19/9202/26/9203/04/9203/11/9203/18/9203/25/9204/01/9204/08/9204/15/9204/22/9204/29/9205/13/9205/06/9205/20/9205/27/9206/03/9206/10/9206/17/9206/24/9207/01/9207/08/9207/15/9207/22/9207/29/9208/05/9208/12/9208/19/9208/26/9209/02/9209/09/9209/16/9209/23/9209/30/9210/07/9210/14/9210/21/9210/28/926203962374632426422564804654066620366967677066818968969699437040171156718067281774503751157570876139766887746078083792267992080655814898260683363842398452885166865568775887898889278894490050907139102091751932829345093959(a)ThemeInitsplagreaterentofaweeklyspikedasuremcewintheassubstitutedtheliquidliquidscintillationsamE03E03E03E03E03E03E03E03E03E03E03E03E03E03E03E03E03E03E03E03E03E03E03E03E03E03E03E03E03E03E030.10.10.10.10.10.10.10.1O.l0.10.10.20.10.10.10.10.10.10.20.10.10.10.10.30.1O.l0.10.10.10.30.20.1O.l0.10.10.10.10.10.10.10.10.10.10.11.421.4k1.321.221.321.521.421.321.421.421.421.421.421.421.321.321.521.221.321.3k1.421.421.221.321.2i1.321.421.321.421.221.321.321.421.421.521.521.321.521.621.421.321.421.621.42E04(a)E04E04E04E04E04E04E04E04E04E04E04E04disconUnueod.ThespikrJuly29,1992.dafteedatritiumsamplewasscintillaUonmethples.cUvityfstentimes>40 TI8945959528396009968049731098049990660011000124TRITHHN-(H-S)11/04/9211/11/9211/18/9211/25/9212/02/9212/09/9212/16/9212/23/9212/30/92Activi1.421.621.421.421.421.421.421.321.520.1E040.1E040.1E040.1E040.1E040.1E040.1E040.1E040.1E04141 TeledyneIsotopesIn-HouseBlanhsSampleResults-1992WaterTI¹62035623706323864221648006540266199669636770368186689666994070398711537180372814745007511276136757057668577457780807922379917806528148682603833608423684525851638655387755878958892588942900489071191018917499328093448A~EDt01/02/9201/08/9201/15/9201/22/9201/29/9202/05/9202/12/9202/19/9202/26/9203/04/9203/11/9203/18/9203/25/9204/01/9204/08/9204/15/9204/22/9204/29/9205/06/9205/13/9205/20/9205/27/9206/03/9206/10/9206/17/9206/24/9207/01/9207/08/9207/15/9207/22/9207/29/9208/05/9208/12/9208/19/9208/26/9209/02/9209/09/9209/16/9209/23/9209/30/9210/07/9210/14/9210/21/92L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.95.l.1.9.92.46.97.98.6.7.3.6.7.7.7.96.6.7.97.9.L.T.L.T.L.T.L,T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L,T.8.8.6.6.6.5.7.l.7.7.6.5.8.L,T."8.L.T.8.L.T.7.E-01E-01E00E00E-01E-01E00E-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-OlE-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-OIE00E-01E-01E-01E-01E-01 TI¹93957945939528196007968029730898047990640010800122TI¹GROSSAIZEQL(Cont.)AnisDate10/28/9211/04/9211/11/92ll/18/9211/25/9212/02/9212/09/9212/16/9212/23/9212/30/92GROSSBETAActiviL.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.Activi4.8.4.5.6.7.5.6.7.8.E-01E-01E-01E-01E-01E-01E-01E-01E-01E-016203562370632386422164800654026619966963677036818668966699407039871153718037281474500751127613675705766857745778080792237991780652814868260383360842368452585163865538775501/02/9201/08/9201/15/9201/22/9201/29/9202/05/9202/12/9202/19/9202/26/9203/04/9203/11/9203/18/9203/25/9204/01/9204/08/9204/15/9204/22/9204/29/9205/06/9205/13/9205/20/9205/27/9206/03/9206/10/9206/17/9206/24/9207/01/9207/08/9207/15/9207/22/9207/29/9208/05/9208/12/9208/19/92L.T.L,T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.7.8,E-01E-019.l.7.8.l.l.9.8.8.7.8.8.8.7.9.8.98.8.8.9.8.9.8.98.8.8.7.E-01E00E-01E-01E-00E-00E-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-01E-011.'E001.EOO1.E00 TI487895889258894290048907119101891749932809344893957945939528196007968029730898047990640010800122GROSSBETA(Cont.)AnsDate08/26/9209/02/9209/09/9209/16/9209/23/9209/30/9210/07/9210/14/9210/21/9210/28/9211/04/9211/11/9211/18/9211/25/9212/02/9212/09/9212/16/9212/23/9212/30/92TarTruM-(8-3)ActiviL.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L,T.L.T.L.T.L.T.L.T.L.T.L.T.L,T.8.98.98.98.8.8.l.8.7.8.7.8.7.l.7.8.E-01E-01E-01E-01E-01E-01E-01E-01E-01E00E-01E-01E-01E-01E-01E-01E00E-01E-01TI4620416237663244642776480665408662056696967708.681916897169945704037115871808728197450575117761417571076690774627808579227(a)Tritiumby11qutd01/02/9201/08/9201/15/9201/22/9201/29/9202/05/9202/12/9202/19/9202/26/9203/04/9203/11/9203/18/9203/25/9204/01/9204/08/9204/15/9204/22/9204/29/9205/06/9205/13/9205/20/9205/27/9206/03/9206/10/92sctnUllation.L.T.T.T.T.T.T.T.T.L.L.L.L.L.L.L.L.L.T.T.T.T.T.T.T.T.T.T.T.T.T.T.T.T.L.L.L.L.L.L.L.L.L.L.L.L.L.L.1.l.8.7.l.l.2..2.1.l.l.2.1.1.2.l.l.l.l.2.2.2.99.E02E02E01E01E02E02E02E02E02E02E02E02E02E02E02E02E02E02E02E02E02E02E02(a)E02(a)ActiviCii44 TI¹7992280657814918260883365842418453085168865588776087900889298894790053907169102391754932859343593960945969528496010968059731198050990670011100125TRITIUM-(H-S)(Cont,)AnsDat06/17/9206/24/9207/01/9207/08/9207/15/9207/22/9207/29/9208/05/9208/12/9208/19/9208/26/9209/02/9209/09/9209/16/9209/23/9209/30/9210/07/9210/14/9210/21/9210/28/9311/04/9211/11/9211/18/9211/25/9212/02/9212/09/9212/16/9212/23/9212/30/92L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L,T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.l.3.8.2.2.E02E02E02E01E02E022.E022.E021.E022.l.l.9.1.l.l.l.2.1.2.2.1.1.l.1.l.l.l.E02E02E03g))E02E03E03E03E03E03E03E03E03E03E03E03E03E03E03E03E03A(b)ThegascountingmethodfortritiumanalysiswasdiscontinuedasofSeptember1,1992.Itwasreplacedbyaliquidscintillationmethodwhichhastheequivalentmeasurementsensitivity.However,theweeklyblankmeasurementscontinuedwiththelowermeasurementsensitivityuntiltheendoftheyear.In1993thetritiumblankanalysiswillbeperformedbythemoresensitiveliquidscintillationmethod.145 APPENDIXJTLDQUALITYCONTROLPROGRAMi46 TLDQUALITYCONTROLPROGRAMTeledyneIsotopesperformsanin-housequalityassurancetestingprogramfortheenvironmentalTLDlaboratory.OnaquarterlybasistheQAmanageroraqualiQeddesignateexposesgroupsofTLDstothreedifferentdosesusingaknowncesium-137exposurerate.TheperformanceofthesecondquartertestintheearlypartofthethirdquarterhadnoimpactonTLDresultsreportedthroughouttheyear.Duetoanincreasedworkload,theQAmanagerperformedthesecondquarterexposuresonJuly14,1992.SubsequentthirdandfourthquarterexposureswereperformedinSeptemberandNovembertoensurefourtestswouldbeperformedfor1992.Typicalexposuresarebetween20and80mR.TheTLDsarereadoutoneachofthethreeModel8300ReadersintheenvironmentalTLDlaboratoryandthecalculatedresultsarereportedtotheQAmanager.TheQAmanagerevaluatestheresultsandwritesareportdiscussingtheperformanceofthelabs.For1992allresultswerewithintherequirementsofRegulatoryGuide4.13,Section'C.Thestandarddeviationswerelessthan7.5%andthevariationsfromtheknownwerelessthan30%.Theaccompanyinggraphsshowthenormalizeddeviationsofthemeasureddosestotheexposuredosesforeachofthethreereaders.

TRENDIAPH6QUALITYCONTROL,-TLDSTLDREADER2050.5liI~-0,5IIIII/II/X/01/8904/8907/8910/8901/9004/9007/9010/9001/9104/9107/9110/911/927/929/9211/92LowDose9--MiddleDoseH-HighDose QUALITYCONTROL-TLDSTLDREADER21$1,50.5-0.5/0/////i/01/8904/8907/8910/8901/9004/9007/9010/9001/9104/9107/9110/911/927/929/9211/92LowOose8--MiddleOoseH-HighDose~Reader-211 QUALlTYTROL-TLDsTLDREADER2420.8COOCL0.60.4cEOaOI0.2W.4%.8//////%/II01/8904/8907/8910/8901/9004/9007/9010/9001/9104/9107/9110/911/927/929/9211/92LowDose8--MiddleDose~HighDose QUALlTYCONTROL-TLDsTLDREADER91500.5-1.510/9001/9104/9107/9110/911/927/929/9211/92LowDose8--Middle'oseH-HighDose

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