ML17334B622

Annual Environ Operating Rept for 960101-961231. W/970418 Ltr

ML17334B622
Person / Time
Site:	Cook
Issue date:	12/31/1996
From:	FITZPATRICK E INDIANA MICHIGAN POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
AEP:NRC:0806Q, AEP:NRC:806Q, NUDOCS 9704240079
Download: ML17334B622 (350)

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CATEGORY1REOUDRTOINEORMA'/ION,DISTRIBUTION TEM(RIDE)ACCESSION NBR:9704240079 DOC.DATE:

96/12/31NOTARIZED:

NOFACIL:50-',315 DonaldC.CookNuclearP6werPlant,Unit1,IndianaM50-316DonaldC.CookNuclearPowerPlant,Unit2,IndianaMAUTH.NAMEAUTHORAFFILIATION FITZPATRICK,E.

IndianaMichiganPowerCo.,RECIP.NAME RECIPIENT AFFILIATION DOCKET0500031505000316I

SUBJECT:

"AnnualEnvironOperating Reptfor960101-961231."

W/970418ltr.DISTRIBUTION CODE:C001DCOPIESRECEIVED:LTR ENCLSIZE:TITLE:Licensing Submittal:

Environmental ReptAmdt6RelatedCorrespondence NOTES:ERECIPIENT IDCODE/NAME HICKMAN,J INTERNAL:

IL~557501OGCHDS2EXTERNAL:

NOACCOPIESLTTRENCL11111011RECIPIENT IDCODE/NAME NUDOCS-ABSTRACT RGN3DRS/RSBNRCPDRCOPIESLTTRENCL1111110DNNOTETOALLMRIDSNRECIPIENTS:

PLEASEHELPUSTOREDUCEWASTE.TOHAVEYOURNAMEORORGANIZATION REMOVEDFROMDISTRIBUTION LISTSORREDUCETHENUMBEROFCOPIESRECEIVEDBYYOUORYOURORGANIZATION, CONTACTTHEDOCUMENTCONTROLDESK(DCD)ONEXTENSION 415-2083TOTALNUMBEROFCOPIESREQUIRED:

LTTR7ENCL6 1ll"II4 IndianaMichiganPowerCompany500CircleDriveBuchanan, MI491071395lNQMMAlMlCNEGAMPSSTApril18,1997AEP:NRC:0806QDocketNos.:50-31550-316U.S.NuclearRegulatory Commission ATTN:DocumentControlDeskWashington, D.C.20555Gentlemen:

DonaldC.CookNuclearPlantUnits1and2ANNUALENVIRONMENTAL OPERATING REPORTJANUARY1,1996TODECEMBER31,1996AttachedistheDonaldC.CookNuclearPlantAnnualEnvironmental Operating Reportfortheyear1996.Thisreportwaspreparedinaccordance withprocedure 12PMP6010OSD.001,"OffsiteDoseCalculation Manual,"section4.8.1,andTechnical Specification, AppendixB,Part2,section5.4.1.Sincerely, E.E.FittrickVicePresident vlbAttachment cc:A.A.BlindA.B.BeachMDEQ-DW8(RPDNRCResidentInspector J.R.Padgett<goiiC~9'704240079 9'6iR3iPDRADOCK050003i5PDRIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIC IIt4,1j',f ATTACHMENT TOAEP:NRC:0806Q ANNUALENVIRONMENTAL OPERATING REPORTJANUARY1,1996TODECEMBER31,19969704240079 6

TABLEOFCONTENTSPacaeI.Introduction II.ChangestotheEnvironmental Technical Specifications

..III.Non-Radiological'nvironmental Operating ReportA.B.C.D.E.F.G.PlantDesignandOperation Non-Routine ReportsEnvironmental Protection Plan.Potentially Significant Unreviewed Environmental Issue.Environmental Monitoring-Herbicide Applications MolluscBiofouling Monitoring

.SpecialReports11112IV.Radiological Environmental Operating ReportA.ChangestotheREMPB.Radiological ImpactofDonaldC.CookNuclearPlantOperations C.LandUseCensus.D.Solid,Liquid,andGaseousRadioactive WasteTreatment SystemsConclusion 333 LISTOFAPPENDICES e~eedixTitleI.Non-Routine Reports-1996II.Environmental Screening Reports-1996III.Herbicide Application Report-19'96IV.MolluscBiofouling Monitoring

-1996V.SpecialReportsVI.AnnualReport:Radiological Environmental Monitoring Program-1996A.Radiological Environmental Monitoring ProgramSummary-1996B.DataTablesC.Analytical Procedures SynopsisD.SummaryofEPAInterlaboratory Comparisons E.REMPSamplingandAnalytical Exceptions F.LandUseCensusG.SummaryofthePreoperational Radiological Monitoring ProgramH.SummaryoftheSpikeandBlankSampleProgramI.TLDQualityControlProgram I.INTRODUCTION Procedure 12PMP6010OSD.001,"OffsiteDoseCalculation Manual,"Section4.8.1andTechnical Specification, AppendixB,Part2,Section5.4.1requirethatanannualreport,whichdetailstheresultsandfindingsofongoingenvironmental radiological andnon-radiological surveillance

programs, besubmitted totheNuclearRegulatory Commission.

Thisreportservicestofulfilltheserequirements andrepresents theAnnualEnvironmental operating ReportforUnits1and2oftheDonaldC.CookNuclearPlantfortheoperating periodfromJanuary1throughDecember31,1996.During1996,basedonthemonthlyoperating repcrtsforUnit1andUnit2,theannualgrosselectrical generation, averageunitservicefactors,andcapacityfactorswere:~parameter GrossElectrical, Generation (MWH)UnitServiceFactor(4)UnitCapacityFactor-MDC*Net(%)*MaximumDependable Capacity8,687,540 97.695.3Unit28,298,030 87.086.2II.HANGESTOTHEENVIRONMENTAL TEHNICALPECIFICATIONS Therewerenoenvironmental Technical Specification changesin1996.III.NON-RADIOLOGICAL ENVIRNMENTALPERATINGREPORTA.PlantDesignandOperation During1996,noinstances ofnoncompliance withtheEnvironmental Protection Planoccurred, norwerethereanychangesinstationdesign,operations, tests,orexprimentswhichinvolvedapotentially significant unreviewed environmental issue.Therewasoneenvironmental screening duringthereporting period.Acopyofthisscreening islocatedinAppendixIIofthisreport.Itwasconcluded thatnoenvironmental evaluations wererequiredandthatn~unreviewed environmental questions existed.B.Non-Routine ReportsAsummaryofthe1996non-routine eventsislocatedinAppendixIofthisreport.Nolong-term, adverseenvironmental effectswerenoted.Environmental Protection PlanTherewerenoinstances ofEnvironmental Protection Plannoncompliance in1996.D.Potentially Significant Unreviewed Environmental IssuesTherewerenochangesinstationdesign,operations, testsorexperiments whichinvolvedapotentially significant unreviewed environmental issue.Therewasoneenvironmental screening duringthereporting period.Acopyofthisscreening islocatedinAppendixIIofthisreport.Thescreening determined thattherewerenounreviewed environmental 0

ques"ionsE.Environmental Monitoring

-Herbicide Application Technical Specifications AppendixB,Part2,section5.4.1,statesthattheAnnualEnvironmental Operating Report;hallinclude:summaries andanalyses'ftheresultsoftheenvironmental protection activities requiredbysection4.2ofthisEnvironmental Protection Planforthereportperiod,including acomparison withpreoperational studies,operational controls(asappropriate),

andpreviousnon-radiological environmental monitoring reports,andanassessment oftheobservedimpactsoftheplantoperation ontheenvironment.

Herbicide applications aretheactivities monitored inaccordance withsection4.2.Therewerenopreoperational herbicide studiestowhichcomparisons couldbemade.Herbicide applications aremanagedbyplantprocedure 12THP2160HER.001.Asummaryofthe1996herbicide applications iscontained inAppendixIIIofthisreport.Basedonobservations, therewere,nonegativeimpactsorevidenceoftrendstowardirreversible changetotheenvironment asaresultoftheherbicide applications.

Basedonourreviewofapplication recordsandfieldobservations, theapplications conformed withEPAandStaterequirements fortheapproveduseofherbicides.

F.MolluscBiofouling Monitoring ProgramMacrofouler monitoring andcontrolactivities during1996arediscussed inAppendixIVofthisreport.Wholewatersamplingstudiesshowednoadverseenvironmental impact.G.SpecialReportsTherewerenospecialreportsidentified during1996.IV.RADIOLOGICAL ENVIRONMENTAL OPERATING REPORTTheRadiological Environmental Monitoring ProgramannualreportislocatedinAppendixVIofthisreport.Theobjectives oftheoperational radiological environmental monitoring programare:Identifyandmeasureradiation andradioactivity intheplantenvironsforthecalculation ofpotential dosetothepopulation.

Verifytheeffectiveness ofin-plantmeasuresusedforcontrolling thereleaseofradioactive material.

Providereasonable assurance thatthepredicted doses,basedonradiological effluentdata,havenotbeensubstantially underestimated andareconsistent withapplicable standards.

Complywithregulatory requirements andStationTechnical Specifications

.andproviderecordstodocumentcompliance.

ChangestotheREMPTherewerenoidentified changestotheREMPduring1996.

Therewerenoidentified changestotheREMPduring1996.B.Radiological ImpactofDonaldC.CookNuclearPlantOperations Thisreportsummarizes thecollection andanalysisofvariousenvironmental samplemediain1996fortheRadiological "Environmental Monitoring ProgramfortheDonaldC.CookNuclearPlant.Thevariousanalysesofmostsamplemediasuggestthattherewasnodiscernable impactofthenuclearplantontheenvironment.

Theanalysisofairparticulate filters,charcoalcartridges, directradiation bythermoluminescent dosimeters, fish,water,mildandsediments fromLakeMichigan, drinkingwater,andfoodproducts, eitherdidnotdetectanyradioactivity ormeasuredonlynaturally occurring radionuclides atnormalbackground levels.Theonlyradionuclide whichappearsattributable totheDonaldC.CookNuclearPlantoperation istritium,whichwasmeasuredatlowlevelsinonsitewells.However,theassociated groundwater doesnotprovideadirectdosepathwaytoman.C.LandUseCensusTheLandUseCensusisperformed toensurethatsignificant changesintheimmediate vicinityoftheDonaldC.CookNuclearPlantareidentified.

Anyidentified changesareevaluated todetermine whetheramodification mustbemadetotheREMPorotherrelatedprograms.

Twodeletions ofmilkfarmswereidentified duringthe1996LandUseCensus.Afurtherdiscussion oftheLandUseCensuscanbefoundinAppendixVIofthisreport.D.Solid,Liquid,andGaseousRadioactive WasteTreatment SystemsTherewerenochangesinthesolid,liquid,orgaseousradioactive wastetreatment systemsduring1996.CONCLUSION Basedupontheresultsoftheradiological environmental monitoring programandtheradioactive effluentreleasereportsforthe1996reporting year,itcanbeconcluded thattherewerenoadverso.affectstotheenvironment ortothegeneralpublicduetotheoperation oftheDonaldC.CookNuclearPlant.3 APPENDIXINON-ROUTINE REPORTS1996 1996Non-Routine EventsFebruary26,1996-OutfallOODContinuous pHmonitoring wasinterrupted.

Theinterruption wascausedbyfoulingproblemsassociated withtheglasspHelectrode.

March10,1996-OutfallOODcontinuous pHmonitoring wasinterrupted.

Theinterruption wascausedbyanelectronic failureofpHmonitoring instrumentation.

May10,1996-Anestimated 1gallonofoilwaswasheddowntheroofdrainstothestormwatersystemasaresultofoilvaporaccumulating ontherooffromtheUnit2hydrogensealoilvaporextractors (anestimated 5gallonaccumulation)

.August19,1996-Approximately 2gallonsoflubeoilleakedfromadamagedoilresrvoirforatraveling waterscreentotheUnit1forebay.

APPENDIXIIENVIRONMENTAL SCREENING REPORTS1996 4

ANHWmwELECTRICPQHfF.RDataJune4,1996SubJectDonaldC.CookNuclearPlantEnvironmental Evaluation Unit2UpratePerAEP:NRC:1223arlsonl.P.AntlS.L.ColvisToAEP:NRC:1223DonaldC.CookNuclearPlantiotrodualion Thisenvironmental screening iswritteninsupportoftheapplication foramendment oftheDonaldC.CookNuclearPlant,UnitNumber2FacilityOperating License;foramendment oftheDonaldC.CookNuclearPlant,Unit2Technical Specifications; andforrelatedchangestotheUnit1Technical Specitications proposedprimarily tosupportoperation ofCookNuclearPiantUnit2atanincreased coreRatedThermalPowerof3588MWt.Inanticipation oftheproposedUnit2uprato,theMarch1994renewalsubmittal fortheNationalPollution DIscharge Elimination Systems(NPOES)PermitincludedarequestforIncreasing thethermaleffluentdischarge limit.Thefollowing excerptprovidesthfthhjustification.

viesescopeothechangeandthe

'Thecurrentthermaleffluentlimitforthecirculating watersysted'semiscargingtoLakeichlganis15.5x10'TU/hr.

Thislscalculated frommeasurements takenatOuthlls001and002forUnits1and2,respectively.

Atthislimit,theunitsareoperating withcalculated Theun'aximum temperature differentials of22.3and18.3degreesFfU'tseunitshavebeenrequiredtoreduceloadfrom100Mduringthehottestsummermonths'omaintaomaintainthethermaldischat~Je withinlimits.InordertomaintaIn100loloadthroughout

'iheenbreyear,including thehotsummermonths,weproposeincreasing thethermaldischarermaiscargeAttheproposedthermaldischarge, thetemperature differerttials arecalculated tobesorni1and2respectively, approximately1 degreeFgreater,or23.4and,19.3degreesFfoUtsdusingthesameconditions esintheabovecalculations.,

Th'heincreasenheatloadandisargetemperature toLakeMichiganareminimalandarenotexpectedtoresultinadverseenvironmental harmlnandaroundtheplantdischarges.'he 16.25x10'TU/hrwasicwasincreased to16.8x1O'TUlhrinalaterproposaltotheMONRdescribed inthedemonstra instration oftheacceptability oftheproposedincreaseinheatdischareofsaoeR,asRule98MichiganWaterQualityStandards (Attachment C).

'MgFnvironmental Evaluation U-2UpratePerAEP:NRC:1223OnJuno28,1995,theCookNulearPlantreceivedanewNPDESPermitwhichincludedpermission toinc."aseHeatAdditionDischarge Limitation to16.8x10'TU/hrwiththefollowing "Asacondition ofthispermit,thepermittee shallconductathermalplumestudyforoutfal!s001and002.Thestudyshallboconducted seasonally, duringspring,summerandfall.Eachseasonalstudyshalllndude adetermination ofthecurrentvelocityandvolumewhichservestodilutethedischarge InLakeMichigan, adetermination ofthestratification oftheeffluent, ifanyinLakeMichigan, predominant winddirection andvelocityatthetimeofthestudy,anddetailedmappingoftheplumeforeachstudy.Withinthree(3)monthsoftheeffective dateofthispermit,aplanforconducting thestudyshallbesubmitted tothePlainwell DistrictSupervisor oftheSurfaceWaterQualityDivisionforapproval.

Thestudyshallbeimplemented inaccordance withtheapprovedplan,whichwillincludeinformation regarding Initiation ofthestudy.Ifthepermittee desirestomakeanysubstantial changeslntkeapprovedplan,suchproposedchangesshallbesubmitted toandboapprovedbythePlainwell DistrictSupeiv',sor priortoimplementation.

Theresultofthisstudy'hall besubmitted tothePlainwell DistrictSupervisor vrithinfour(4)monthsofthecompletion ofthestudy."Aplanforconducting thestudywassubmitted onSeptember 25,1995totheMichiganDepartment ofNaturalResources (MDNR)(nowknownastheMichIganDepartment ofEnvironmental QualityorMDEQ)DistrictSupervisor oftlieSurfaceWaterQualityDivision(SWQD)(Attachment A).ApprovalfromtheMDEQSWQDwasreceivedonNovember6,1995(Attachment 8).Schedules havebeenestablished tomeettheotheritemsofSpecialCondition 9.currentNPDESPermit:"TheMichiganDeoartment ofNaturalResoures'scons!"dngthenecessity ofincorporatirg oincorpora ingMih'emperature limitations inthispermittoassurethattherequlroments ofRui82(1)fthiciganWaterQualityStandards aremet.Thorefore, whenconsideration ofthisissuehasbeencompleted, theDepartment maymodifythispermitin.accordance withPartII.B.4toaddappropriate temperature limitations orrequirements."

viewActionTaTheFinalEnvironmental Statement (FES),NationalPollution Discharge Elimination System(NPDES)PermitandAppendixSofTechnical Specifications werereviewedInsupportofthisscreening todetermine thepotential environmental impactassociated withthisproposeduprate.inaccordance with661000-LTG-2200-1, Revision0Preparation andDistribution ofEnvironmental Evaluations,"

anEnvironmental CheckSkeetwascompleted.

Theconclusions ofthischeckskeetfollow.

Peg*3Environmental Evaluation U-2UpratoPerAEP:NRC;12231.Willtheproposedactivityresultinasignificant increaseinanyadverseenvironmental impactpreviously evaluated intheFinalEnvironmental Statement (FES)7NoTheproposedu'pratewillresultinanincreaseintemperature ofthecoolingwttht'nerLakeMichiganasfoundinthesummaryofenvironmental ImpactandadverseeffectsintheFES.Theareaofthethermalplumeisalsoexpectedtoincreasefrom593to700acres,anincreaseofabout18'A.Webelievethatth"impactofthischangewillhaveanegligible effectontheenvironment end,doesnotrepresent asignificant increasoinanyadverseImpactdiscussed lntheFES.Onthebasisofthestatement 7,inthesummaryandconclusions portionoftheFES,allrequirements setforthintheFEScalledforthbytheNationalEnvironmental PolicyAct(NEPA)suchasLicenseConditions hasbeenmetandreviewedandapprovedbytheMichiganDepartment lumestuNaturalResources andtheUnitedStatesEnvironmental Protection Agonc.AhpumestudyasrequiredperNPDESpermitisscheduled oncetheupratehasoccurred.

Technical Speclficabons associated WiththeupratewillbeIncludedinAEP:NRC:1223.2.Istherooheproposedactivityamatternotpreviously evaluated intheFinalEuaeineinanvironmental No,TheFESdiscusses thermaleffluent-discharge andtheUnit2upraterepresents achangetotheNPDESeffluentlimitsasdiscussod Inquestion3and4,Theproposedactivitywasnotevaluated atiheheatdischarge levelsthatwereevaluated intheoriginalFES.However,thoFESdidevaluatethermaleffluentdischarge.

Currentmodelingstudiesindicated thatthecalculated mixingzonevnliexpand,yotthisisnotexpectedtobeasignificant deviation fromtheoriginalstudyanddoesnotindicateanadverseenvironmental impactpreviously evaluatod intheFES.Thisactivityandassociated effecthavebeenproviously evaluated i>>tiioFESandareallpotential adverseeffectsworeaddressed viatheNPDESPermitapprovalprocess.:,dJ.JudefromtheCenterforGreatLakosandAauaticSciencesforthU'iyIc~,wascontracted toperformaninves@ation ofchangesthatmightoccurduetotheheatIncreaseandhowthosechangesmightImpactthecurrentLakoMich'nfaunainthevicinityofthepl'ant(Attachment D).Thereviewdetermined thatthetheintriorequested heatinputandincreased iherma>pluinesizewillhaveeI'blnegigioimpactoneintegrity oftheLakeMichiganecosystem inthisareaofthelake.Inadd'tlh'aion,tispoueyingstudiesshowthosizeandincreased temperatures expectedwithintheplumewillhavenodiscernible adverseenvironmental impctth'dmpaonewioarrayofises,zooplankton, andbenthicorganlsrns thatarecommonraredd,,rare,enangered,oruncommoninthevicinityoftheCookPlant.Theeheenvironmental impactsandadverseeffectscontained intheFESwerereviewedanaIapproprhte measuresrequiredundertheNationalEnvironmental PolicyActendAppendixDto10CFRPart50woreaddressed viatheNPDESPermitapprovalprocessdescribed andattachedthroughout thisdocument iage4i"=nrironrnentaf Fvaluation U-2UpratoPorAEP:NRC:12233.WilltheproposedactivityresultInasignificant changeinconstituent orquantityofeffluent' NoThereisnosignificant changeinconstituent ofeffluent.

Thequantityoftheeffluenwillonlychangeinthoamountofheatbeingdischarged.

Thischangeisfrom15.5x10'TU/hr to168x10'TU/hr.Heatisdifferent fromchemicalpollutants inthatitwillnotinterfere vriththedesignated usesinthereceiving stream,norwillitimpactthopublichealthorenvironment.

Theadditional heattoberojoctedtoLakeMichiganisnotexpoctedtoresultinasignificant changeinthequalityofeffluentandhasbeenreviewedandapprovedandpermitted bytheMDNR.4.Willthepropcsedactivityresultinasignificant changoinaiithorized powerlevel?YesThechangetoRatedThermalPowerl'rom3411to358&bydeflnition reflectsachangeinauthorized Powerlevel.Impactsresulting fromthischangearediscussed inthe'esponsetoquestfon3andwillbeaddressed InAEP:NRC:1223 Technical Specification:

amendment proposaltotheUSNRC.5.Willapreviously undisturbed areabeimpactedbythisactivity?

NoThethermal"fumesizeisexpectedtoIncrease, althoughthisincreaselsnotexpectedtoimpactpreviously undiisturbed areasinLakeMlchlgan.

Thethermalplumestudythatvillboperformed asrequiredintheNPDESpermitvrilfdocumentwhethertherewillboasfgnificant environmental effectasaresultofthouorate.6.Willinitiation orimplementation oftlieproposedactivityrequiremodification toexistingpermits?NoInaccordance is%thoNPDESPermitNo.MI0005827 fortheDonaldC.CookNuclearPlantPARTIIA2.ChangeofConditions, anewapplication wassubmitted totheChloffthoPermitSectionofthoSurfaceWaterQualityDivisiontoincreasethehe."'ejected toLak~""".higan from15.5x10'TU/hrto16.8x10'TU/hr.

AlsosubminedtotheMichiganDepartment ofN"turalResources perPart4ofthegeneralrulesofthoh4'chigon WaterResourceCommission (WaterQualityStandards) wasaDemonstration ofAcceptability ofIncreaseHeatAdditfonproposedinaccordance to,Rule98(Attachment C).~C~IsionBasedonth'nthisreviewofthoproposeduprateofCookNuclearPlantUnit2from3411MWtto3588MWt,ltlsconcluded thatanunreviowed environmental questiondoesexist.Assuch,fnformalion concerning thechangewillbesubmitted totheNuclearRegulatory Commission inaccordance vrithprocedure 661-LTG-220041

'Preparation andDistribution ofEnvlronmontal Evaluations.

0 Page5Environmental Evaluation U-2UpratePerAEP:NRC:1223ltshouldbenotedthat4".edetermination thatanunreviewed environmental questionexistedwasanexpectedresultofthisevaluation.

Thepurposeofthisevaluation wastosupporttheproposedTechnical Specification Amendment submittal package.Fromastrictlyenvironmental perspective, theproposeduprateisnotconsdored tohaveasignificant adverseimpactontheenvironment asdiscussed lnthoFES.Finally,theMichiganDepartment ofNaturalResources hasapprovedtheproposedincreaseInthethermaleffluentlimit.BasedonareviewoftheFES,AppendixBTechnical Specifications, thecurrentNPDESPermitfortheCookNuclearPlant,and10CFR51requirements noenvironmental assessment (EA)orenvironmental impactstatement (EIS)isrequired.

EAsorEISsarenotrequiredforanyactionincludedinthelistofcategorical exclusions'et forthin10CFR51.22(c).

Specifically, 10CFR5'.22(c)(a),

providesthatanEAisnotrequired;or theissuanceofanamendment providedthat:Qitheamondment involvesnosignificant hazardsconsideration, thereisnosignificant changeinthetypesorsignificant increaseintheamountsofanyeffluents thatmaybereleasedoffsite,and(iu)thereisnosignificant increaseinindividual orcumulative occupational radiation exposure.

Plantradiation protection featuresaredesignedtolimittheradiation exposuretoplantpersonnel andthegenera)publicto10CFR20limitsundernormalconditions.

Nlhilecertainisotopesarepresentingreaterconcentration lnthefuolgapduetotheupratedpowerlevol,thoactualincreases inoccupational doseareexpectedtobominimal.Thefuelhasbeendesignedtooperateatthehigherp'urerlevelwithoutanydamage,whichwouldnegateanyincreases Inradioactivity trappedwithinanintactfuelrod.Also,ourtechnical specifications limittheconcentration ofradioactivity viithinthereactorcoolantsystem(seeTechnical Specification 3.4.8),Nevertheless, acddentoffsitodoseshavebeenrecalcu;ated basedontheupratedsourcetermandotheranalysisassumptions usedintheUpratingProgram.Insomecases,theresulting thyroidoffsitedoseconsequence's increaseslightlyabovethevaluespresently intheUFSAR..Thenewcalculated wholebc'ydoseseitherromainthesameastheUFSARvaiuosordecrease~orbothtypesofcalculations, tnechangesinthooffsiteradiation doseforeachaccidentarenotsignificant andarewithintheacceptance criteriaasdefinedin10CFR100.Sincesystemsandprocedures controlling normalradioactive releasesarebasedonlimitingplantffluentstoasmallfractionofregulatory limits,theproposedupratingofUnit2willnotexceed10CFR20or10CForCR100limits.Basodonthisinformation, therewIIIbonosignificant increaseinthetypesoramountsofeffluerits thatmaybereleasedoffsiteandnosignificant increaseinindividual orcumulative occupational radiation exposure.

AEPNObelievesthattheprovisions of10CFR51.22(c}(e}

areapplicable tothispowerincrease.

Forreasonsdescnbedin thesubmittal, AEPNObelievesthethreecriteriaof10CFR5122(c)(9) aresatisfied.

Thereforo, thisTechnical Specification amendment shouldbeconsidered underthe"categorical exclusions" provision of10CFR5122(c)(9).

Page6Environmental Evaluation U-2UpratePerAEP:NRC,.1223Theenviranmenta,'impacts atthohighorpowerlevelaboundedbytheimpactsassumedinthoexistingFESandcontrollod bythoMichiganDepartment ofEnvironmental QualitythroughtheNPDESPermitprogram,aridRule98oftheMichiganQualityStandards.

AcopyoftheDemonstration ofAcceptability ofincreased HeatAddition, whichwassubmitted aspartofthecompliance requirements bytheMDNRandEPA,isalsoincludedwiththispackageforreviewatAttachment C.Thissubmittal shouldassisttheNRCinmakingafindingofnosignificant impact"inaccordanco with10CFR51.32.References 1.2.3.4.Unit1and2Technical Specifications, AppendixB.NPDESPermitNo.MI0005827, June28,1995FinalEnvironmental Statement, August197310CFR51.22.(c),

10CFR51.32I/Approvedby:D.H.Malin,SectionManagerNuclearLicensing andFuelsAttachments c:S.J.BrewerD.M.Fitzgerald M.A.Ackerman 0

APPENDIXIIIHERBICIDE APPLICATION REPORT1996 ANKRlC'ANKLKCfRICPQWfRDateMarch26,1997subject1996Herbicide SprayReport-CookNuclearPlantW(FromE.C.MallenToJ.P.CarlsonThefollowing herbicides wereappliedonCookNuclearPlantpropertyduring1996.Round-upProOust.Preen.Weed-B-Gon FromJuly24-29,1996,amixtureofRound-upProandOustwasusedfortotalplantcontrolintheswitchyards,railroadright-of-way, aroundbuildings, parkinglots,thesewageandabsorption ponds,andwithintheplant'sprotected area.Theapplication wasperformed byDeAngeloBrothers, alicensedherbicide applicator oncontracttotheAEPWesternDivision.

OnSeptember 3,1996,themortality ofthisherbicide application wasassessedat80-90%.TheareasaroundtheOilBuildingandthePM&ISSteelYardwereassessedat15%effective.

Thefenceopeningbetweenthe34SKVand765KVyardsindicated noapplication hadoccurredinthisarea.Theeffectonsmall((3')saplingswasminimalandthesearequitenumerousinthe76SKVyard.Theprotected areahadaveryhighmortality, withonlyafewplantsnotedinthemicrowave zone.OnAugust8,9,and22,1996PreenwasusedforweedcontrolinplantingbedsaroundtheNorthGuardhouse

entrance, TrainingBuilding, andVisitor's ParkingLot.Theherbicide wasappliedbyalicensedapplicator fromtheMaintenance ANRBuildings

&GroundsCrew.Theherbicide was80-90%effective andcontrolled weedsintheplantingbedscuttingbackonweedingtime.OnJuly18,26,31andAugust1,27,28,and29,1996Weed-B-Gon wasusedforweedcontrolonthelawnsaroundtheplantsite..lie herbicide wasappliedbyalicensedapplicator fromtheMaintenance ANRBuildings

&GroundsCrew.Theherbicide was20-30%effective incontrolling weedsinthePlant'slawns.Thereasonforthislowefficacywasthattheherbicide wasappliedinsummerasopposedtoearlyspring.Insummary,baseduponourreviewoftheapplication records,manufacturer specifications, materialsafetydatasheets(MSDSs)andobservations ofthetreatedareas,theherbicides wereappliedaccording tothemanufacturer's labeledinstructions andaccording toFederalandStaterequirements.

Acertified applicator wasusedasrequired.

~Nosignsofoversprayorspillagewereobservedornoted.Noadverseenvironmental effectsoccurred.

Attao."=en:

2~Yi(KEYRound-upProOust~Jwii~s'fA'sgq>>rfg,>~'e~~~~r~~"Qf'IIjI.','0Irg>sWPreentNeed-B-Con P~O,r~r~W~rrrl6r,It/@..IfIt@"P:~P)(~~~oo9'~~~~~~Page1of6Rov<cfnnA 0

Attachment

!,8age2of6Revision0 PNP'(60H:."..3cAttachment STEELYARO"page3Pf6Re;ision0

-'i60HEg.pp<"-"-acnnent 2CES~6)4QRMBPage40"e<$sinn

?.'P'.o0HER.CO.Attachment 2~~~~OILB"RN-'XSS!TCHYARDpageSof6Revision0 12P.'tP'160:>>::-R.CO!

Actachmenc iIII/~//j1/II~~Page6of6Revision0 APPENDIXXVMOLLUSCBXOFOULXNG MONXTORXNG 1996

CookNuclearPlant1996ZebraMusselMonitoring andControlRessortZ~1ODUCTION Theplant'szebramusselmonitoring andcontrolprogramispresented inthefollowinreport.Chlorine, molluscicides, mechanical

cleaning, andchanesinlantdes'emain thezebramusselcontrolstrategattheCookPltoassessthethreatofzereaozebramusselinfestation anddetermine theeffectiveness oftopresentachallenetotheplantcontroltechniques.

Zebramusselswhichsloughfromthe'k'einaepipeinescontinuegeoescreenwash andtraveling screensystem,servicewaterumstrainers, plantcondensers, andthemiscellaneous sealinandco1'lantisworkinaressivelseaingancooingwatersystem.TheIgggiveyondesignchangestoalleviate thesezebramusselrelatedERADICATION ANDCONTROLMEASURESThe1996controlstrategyconsisted oftheusechlorination oftheservicewater,miscellaneous circulating watersystems,andmechanical cleaning.

zebramusselrelatedproblems'const'tuted alareeffortsin1996.argeofcontinuous andintermittent sealingandcoolingwater,andPlantdesignchangestomitigateportionofzebramusselcont,rolMECHANICAL CLEANINGbaswaserformMechanical cleaningoftheUnit2intakeforebayandUni2iYpeormedbydiversduringtheUnit2refueling outageinnitessentalmaincondenser inlett'~nnelwasinspected andcleanedduringtheoutage.Cleaningandflushingofsmallborepipingandstrainers insystemsandlowvolumewatersystemswascontinued in1996.Allthreeintakecribswerecleanedinthefallof1996tominimizeintakesondivingducks.Intakecribcleaninghasbeenaneffective duckentrainment intotheplant.MOLLUSCZCZDE TREATMENT RESULTSservicewaterpump1996.TheUnit2Unit2retueling theservicewatertheimpactofthemeanstomitigateTherewerenoproprietary molluscicide treatments in1996.CHLORINATION TREATMENT RESULTSAvendorsuliedchservicewaterandmiscellaneous pp'orination systemwasagainusedtocontinuously hl'hcorinaetecorinatethecirculatin waterssussealingandcoolingwatersystems,andintermitt tlgytern.Continuous chlorination oftheservicewatereny0.3to0.6mend-of-iesysemsanthemisceilaneous sealingandcoolingwatersystemttaaargeteerateoffdzeramusselsinthesesystems.'p

-o-pperesidua',

waseffective incontrolling thesettltfemenoCorrosion couponmonitorin studieshahavebegunt",indicatecorrosion ofyellowmetalsmis.yr.)andmildsteel(8.6mils./r../y.)intheservicewatersystems.daveno0serveactualcorrosion indication inengineering inspectio tate.Theplantscorrosion p'onrateobjectives fortheservicewatersystemsare<0.2nsoms./yr.foryellowmetalsand<5mils./yr.

formildsteel.Intermittent chlorination ofthecirculating watersystemt0.2f155y'dshortened to60minutesperdayinJunethruearlyDecemberwaseffective a.ppmorminutesperinminimizing slimegrowthinthemainandfeedpumpcondensers.

Thenon-essent'ervice watersystemwascross-connected tothemiscellaneous seainem1sceaneousseal1ngandcoo11gaterreatesystem.Thoughthemiscellaneous sealingandcoolinconnect'ater systemwascontinuously chlorinated viathenon-esst'on-essentia servicewatercross-gthesmallboreiction,thesystemstillexperienced someblockagebiltdh1ysanse1fragments instrainers.

Thepipingdownstream of.themiscellaneous sealingandco1'herehas.beenanoticeable reduction infrequency ofsmallboreiinoingwaerpumpblockagesincethesystemwasfirstcontinuously chlorinated dspawningseasonin1995.cornateuringthezebramussel,Zveebi0~acI~tm~us1eisc01tI~nFOULINGFROMTHEINTAKEPIPELINES Zebramusselscontinuetosloughfromtheintakepipelines especially whenflowvelocities andpatternsarechangedbycyclingthecenterintakegatevalveWMO-30and

circulating waterpumps.Thisoperation presentsachallenge tothetraveling screensandscreenwash systemintheirabilityto'handletheinfluxofzebramusselssloughing offfromtheintaketunnels.Any"carryover thatoccurs,mustbehandledbytheservicewaterpumpstrainers orisimpingedonthecondenser tubesheets.Thecontinuous operation ofthetraveling screenscontributed toalargedivermaintenance effortin1996.DESIGNCHANGESTraveling ScreensModifications ofthetraveling screenspraywash syternbegunin1995fromasingletoadualsprayheaderwithimprovednozzledesignwascompleted in1996underPM-873.Thedualsprayheaderreturnpipingwasroutedtothetraveling screentrashtroughtofacilitate flushingofthesprayheadersandnozzles.Inadditiontothesprayheaderandspraynozzlechanges,thescreenpanelsontraveling screen2-OME-43-7 werereplacedwithaflatterstainless steelwiremesh.Theimproveddesigneffectively removedthedebrisfromthetraveling screens.Theoldgalvanized dippedscreenpanelsaresystematically beingreplacedontheremaining traveling screenunitsbythestainless steelpanelsastheoldpanelswearout.Acomponent evaluation, CE-95-0345, performed onthenorthscreenwash pumpstrainerinAugustof1996,reducedthestrainermeshsizefrom1/8"to5/64"topreventthetraveling screenwash nozzlesfromplugging.

Miscellaneous Sealing&CoolingWaterPumpStrainerandFilterUpgradeInthefallof1996,the2"miscellaneous sealingacoolingwaterpumpstrainers werereplacedwith4"Haywardselfcleaningstrainers.

Inaddition, twoOntarioHydroIndustries 40micronfilterswereinstalled toruninparallel.

Thenewfilterswillbecomeoperational in1997whenthefilterbackwashroutingcanbechangedfromthescreenwash pumpstainerbackwashlinestothe30"turbineroomsumpoverflowlinetotheintakeforebay.ChemicalInjection PipelineAdesignhasbeenissuedunderDCP-108forinstallation oftwochemicalinjection pipelinesystemstoberunthroughthecenterintaketunnelandbranching atthecenterintakecribtothenorthandsouthintakecribs.Thisdesignisscheduled'o beinstalled inMay1997.Chemicals willbedelivered outtotheintakecribseffectively controlling zebramusselcolonization intheintakepipelines.

CONCLUSION Fortheforeseeable future,proprietary molluscicides willcontinuetobeusedforzebramusselcontrol.Mechanical cleaningcansupplement chemicalcontrolmethodsinthecirculating watersystem.Plantdesignchangesincluding strainers, filters,screens,andchemicaldeliverysystems,willworktoresolvetheplantszebramusselrelatedproblems.

Continuous chlorination hasproventobeeffective incontro~~ing zebramusselsintheservicewaterandthemiscellaneous sealingacoolingwatersystems.Corrosion couponstudiesintheservicewatersystemshaveshownthatalternatives tochlorineshouldbesoughttominimizecorrosion.

Azebramusselmonitoring programutilizing side-stream andarti,ficial substrate

monitors, alongwithdiverandheatexchanger inspections, willcontinuetobeusedtoevaluatetheeffectiveness ofchemicalandphysicalcontrolmeasures.

2

PreparedforAMERICANELECTRICPOWERDonaldC.CookNuclearPlantOneCookPlaceBridgman, MichiganbIOI.LUSCBIOFOULING MONITORING DURINGl996March1997LMSE-97/0091&673/003 Preparedby:LAWLER,MATUSKY&SKELLYENGINEERS LLPEnvironmental Science&Engineering Consultants 10207LucasRoad%oodstock, Illinois60098 TABLEOFCONTENTSLISTOFFIGURESLISTOFTABLESEXECUTIVE SUMMARY1INTRODUCTION PageNo.nIES-11.1PastHistory1.2Objectives 2METHODS2.1Whole-Water Sampling2.2Artificial Substrates 2-12-12-22.2.1PeriodicSettlement 2.2.2Cumulative Settlement 2.2.3PeriodicandCumulative SampleAnalysis2.3QualityAssurance

/QualityControl3RESULT~ANDDISCUSSION 2-22-32-32-43-13.1Whole-Water Sampling3.2Artificial Substrate Sampling3-13-23.2.1Circulating WaterSystem3-23.2.2ServiceandMiscellaneous SealingandCoolingWaterSystems3-33.3QualityAssurance

/QualityControlSamples4SUMMARYANDRECOMMENDATIONS 3-84-14.1Summary4.2Recommendations 4.3References 4-14-24-3Lawler,Matusky&SkellyEngineers LLP LISTOFFIGE!LESTableNo.TitleFollowing Page3-1WholeWaterSamplingProgramVeligersPerCubicMeter,D.C.Cook,19963-1A3-2A'rtificial Substrate Settlement-Forebay NumbersPerSquareMeter,D.C.Cook,19963-2A3-3Artificial Substrate Settlement-Periodic Servic"WaterandMiscellaneous CoolingWaterSystemsPostveliger DensityPerSquareMeter,D.C.Cook,19963-3A3-4Wholewater VeligerDensityandPeriodicSettlement intheServiceWaterSystem,D.C.Cook,19963-4A3-5'Artificial Substrate Settlement-Cumulative ServiceWaterandMiscellaneous CoolingWaterSystemsPostveliger DensityPerSquareMeter,D.C.Cook,19963-7ALawler,Matusky&SkellyEngineers LLP

LISTOFTAI)LESTableNo.TitlePageNo.2-1SamplingScheduleforZebraMusselMonitoring, D.C.Cook,19962-1A3-1WholeWaterSamplingProgramVeligersPerCubicMeter,D.C.Cook,'996 3-183-2ZebraMusselDensity,AverageSize,andSizeRangeofSettledPostveligers fromPeriodicSampling, D.C.Cook,19963-283-3Chlorination DatafortheServiceWaterSystems,D.C.Cook,19963-483-4ZebraMusselDensity,AverageSize,andSizeRangeof'ettled Postveligers fromCumulative

Sampling, D.C.Cook,19963-783-5ResultsofQA/QCSamples,D.C.Cook,19963-8AnlLawler,Matusky&SkellyEngineers LLP EXECUTIVE SUMMARYBiofouling Studieshavebeenconducted attheDonaldC.CookNuclearPlantsince1983.In1991,monitoring ofzebramusselsinthecirculating wat".r,essential servicewater(ESW),andnonessential servicewater(NESW)systemswasaddedtotheprogram.Theobjectives ofthismonitoring aretodetectthepresenceanddensityofzebramusselveligersinthecirculating watersystemandpostveliger settlement intheforebayandservicewatersystems.Veligerswerepresentintheforebayfrom9Maythrough12December1996.Peakdensities occurredon10Octoberand26September 1996,withthemajorpeakoccurring ontheOctoberdate(292,750/m

).Secondary peakswereobservedon17.24and31October1996.Thisperiodofpeakabundance istypicalforthelowerGreatLakeswhichnormallyexperience peakdensities duringtheSeptember-October period.Settlement occurredintheforebayonallperiodicsamplingdatesin1996,except6Juneand25July.Sizeinformation indicates thatsettlement duringthe6Juneto11Julyperiodwaspartially composedoftranslocators.

Firstevidenceof1996spawnedpostveliger settlement wasobservedon20June.Heaviestsettlement occurredbetween5September and21Novemberwiththepeakoccurring between19September and31October.ThisistypicalforthelowerGreatLake."."adissimilartoresultsreportedforthe1992,1993,and1994monitoring pfograllls.

Therewerenoproprietary molluscicide treaunents in1996.Therefore, theobjective ofcomparing cumulative settlement intheforebayaftertreatment withthatoftheentireseasoncouldnotbemet.Settlement oflivepostveligers firstappearedontheartificial substrates setintheservicewatersystemsduringthelatterhalfofOctober.Observation oflocationofindividuals onslides,numberofhalfshells,nociliaorinternalmovement, andsizedataindicated thatresultsrecordedfromJunethroughthefirsthalfofOctoberreflected theeffectsofthecontinuous chlorination, i.e.,primarily deadorganisms wereen'.rained ontheslides.ES-1Lawler,NIatusky0SkellyEngineers LLp

Peakdensities ontheneriodicartific!al substrates whichwereplacedontheservicewatersystemsoccurredduringthelatterhalfofOctoberforallservicewatersystems.Thisfollowedthepeakdensities inthewholewater samplesbyonetotwoweeks,asexpected.

Densities ofpostveligers onthecumulative artificial substrate sampleswerelowfrom23Maythrough22AugustandpeakedatESWR-I,ESWR-2,andthemiscellaneous sealingandcoolingwatersystemsduringthelatterhalfofOctober.ThehighestdensityreportedforNESWoccurredon12December.

Severalunexpected observations weremadeduringthe1996samplingseason.Theseincludes:

~Veligerswerepresentinthewholewater samplesthrough12December.

Sizedataforartificial substrate samples(bothperiodicandcumulative) indicated thatsmallpostveligers werepresentthrough12Decemberandthatthesespecimens werealieneonthesubstrates collected ontheNovemberandDecembersamplingdates.Anumberofpossibleexplanations arepresented fortheseobs.rvations.

Nooneexplanation byitselfisconsidered tobetheanswer;butrathersomecombination oftnesefactorsisthoughttoberesponsible fortheunexpected results.Thesepossibleexplanations include:oTheabnormally warmlakewater,asmeasuredatthe,intake,duringOctober(particularly thelatterhalfofthemonth)mostlikelyextendedthepeakspawnin"seasonforzeuramusselsuntilthefirstpartofNovember.

Theefficacyofthechlorinemayhavebeenreducedbythecombination ofcolderwaterandhighpHduringNovemberand/orthepossiblepresenceofchloramines inthesystem.Zebramusselmetabolic ratessloweddownwiththedecreaseinwatertemperature duringNovember; therefore, theywerenotassusceptible tochlorineasduringthewarmerweathermonths.Resultsmayreflectpresenceofquaggamusselsinthevicinityoftheoffshore.

intake.Theserelatives ofzebramusselscontinuetospawnatmuchcolderwatertemperatures thanzebramusselsandareknowntobepresentintheGreatLakes.ES-2Lawler,Matusky&SkellyEngineers LLp

CHAPTERIINTRODUCTION 1.1PASTHISTORYAmericanElectricPowerCompany(AEP)hasbeenconducting zebramusselmonitoring studiesattheDonaldC.CookNuclearPlantsince1991.Thepurposeofthestudiesistomonitorthepresenceofzebramusselveligerandpostveliger settlement densities inthecirculating water,essential servicewater(ESW),andnonessential servicewater(NESW)systemstohelpdetermine theeffectiveness ofzebramusselcontrolprograms.

The1996monitoring programconducted byLawler,Matusky&SkellyEngineers LLp(LMS)wasdesignedtodetectthetimingofspawningandsenlingofzebramusselsattheCookNuclearPlantandtocollectanddetermine densities for:(1)wholewater samplesforplanktonic veligers; and(2)artificial substrates setwithinthecirculating water,ESW,NESW,andmiscellaneous sealingandcoolingsystemsforperiodicandcumulative postveliger settlement.

1.2OMECTIVES Specificobje~...es forthe1996biofouling monitoring programwereasfollows:Whole-water samplingofthecirculating watersystemwasconducted weekly(June-October),

bimonthly (MayandNovember),

ormonthly(April'nd December) todetermine thepresenceanddensityoflarvalzebramussels.Artificial substrates weredeployedintheintakeforebayandservicewatersystemstodetectsettlement ofpost-veligers.

Sampleswerecollected everytwoweeksfromJunethroughOctoberandonceeverythreeweeksduringNovemberandDecember.

Lawler,NIatusky&SkellyEngineerLLp 1

CHAPTER2METHODS2.1WHOLE-WATER SAMPLINGWhole-water samplingofthecirculating watersystemwasconducted from25Aprilto12December1996according totheschedulepresented inTable2-1.Sampleswerecollected frommid-depth intheintakeforebaybypumpjnglakewaterthroughanin-lineflowmeter intoaplanktonnet.Thesamplinglocationwasconsistent withthatofpreviousstudies.Tworeplicates (2000literseach)werecollected duringeachsamplingevent.AMyersModel2JF-51-8wellpump,ratedtodeliver8gpm,wasconnected toanin-lineflowmeter assembly(SignetModelil'P58640) andpumpedwaterintoaplanktonnetforapproximately 45minutes.Tominimizeorganismabrasion, measuredflowwasdirectedintoaNo.20planktonnetthatwassuspended inapartially filled55-galplasticbarrel.Valveswereadjustedtoreduceflow,thuspreventing theplanktonnetfromoverflowing whenheavysedimentloadsorplanktonconcentrations werepresent.Sampleswerewasheddowngentlyintothecod-endbucketusingfiltered, circulating watersystemwatera<<uthentransferred intoa1literplasticjar.Ifneeded,filteredwaterwasaddedtothejartoensurethatafullliterwasanalyzed.

Afterthesecondreplicate wastaken,bothsamplesweretransported totheon-sitelaboratory andanalyzedimmediately.

Sampleswereinitially mixedthoroughly for3minutesusingamagneticstirplate.Then,usingacalibrated disposable Pasteurpipette,a1-mlaliquotofmixedsamplewasplacedintoaSedgewick-Rafter cellforcounting, usinganOlympusSZ-1145binocular microscope (18-110X) equippedwithcross-polarizing filters.Tenreplicates werecounted,andtheaveragewasextrapolated todetermine thenumberofindividuals percubicmeter.Thisprocesswasrepeatedforthesecondreplicate andthemeanofthetwovalueswascalculated toyieldafinaldensityvalue.Thedensitywascalculated asfollows.2-1Lawler,NIatusky&SkellyEngineers LLp C

TABLE2-1SAMPLINGSCHEDULEFORZEBRAMUSSELMONITORING, D.C.COOK,1996DATEWHOLEWATER ARTIFICIAL SUBSTRATE PERIODICCUMULATIVE AprilMayAugustOctober25923June6132027July311182518152229September 5121926310172431November721December12XXXXXXXXXXXXXXXXXXXXXX,XXXXXXXXXXXXXXX.2-1A

Density(0'im')=(averageO'*DF)/0.001L*IL/2000L*1000L/mSizemeasurements wererecordedforupto50organisms fromeachsample.Veligerlength(pm)wasmeasuredusinganocularmicrometer thatwascalibrated toastagemicrometer.

2.2ARTIFICIAL SUBSTRATES Todetermine zebramusselsettlement inthecirculating water,ESW,andNESWsystems,artificial substrates wereplacedintheintakeforebayupstreamofthetrashracks;sidestream samplersweresetonthereturnsideofbothservicewatersystemsandonthemiscellaneous sealingandcoolingsystem.Monitorswereequippedwithmodifiedtest-tube racksdesignedtoholdslidesforperiodicandcumulative sampling.

(Periodic settlement isdefinedasshort-termmonitoring, eithertwo-orthree-week periods,depending onthemonth.Cumulative settlement islong-term monitoring thatextendsfrominitialdeployment

[23May]totheendofthesamplingseason.)Bothperiodicandcumulative samplingdatesarepresented inTable2-1.2.2.1PeriodicSettlement Artificial st-'"ates thatweredesignedtomeasureperiodicsettlement wereplacedintheintakeforebayandconsisted ofcinderblocks withtest-tube rackssecuredinsidetheopenings,.

Periodicsamplersweredeployedbyropeinthecentrallocationatapproximately mid-depth.

Sidestream monitorswereplacedonthereturnsideoftheservicewatersystems(ESWandNESW)andthemiscellaneous sealingandcoolingwatersystem.Eachmonitorcontained twomodifiedtest-tube racksthatheldallslidesabovethemonitorbase.Thisallowedsiltandsedimenttofalloutbeforetheycouldinfluence postveliger settlement.

Monitorswerecovered4withaplant-approved fireproof fabrictolimitlightexposure.

Plantpersonnel checkedthemonitorsperiodically toensurethatadequateflowwasavailable, andflowwasadjustedasnecessary.

Oneachsamplingdate10slidesfromeachlocationwereretrieved andreplacedwithcleanslides.Thesewerelabeledasperiodicsettlement.

Slideswereplacedinlabeled2-212Lawler,MatuskyASkellyEngineers LLP 0

racks,covered,withaplasticbag,andtransported totheon-sitelaboratory wheretheywereanalyzedimmediately.

2.2.2Cumulative Settlement Asufficient numberofsubstrates wereinitially placedinthebioboxsamplerstoallow10slidestoberemovedoncepermonthattheservicewaterandmiscellaneous sealingandcoolingwaterlocations.

Theseslideswerenotreplaced.

Cumulative settlement wasmonitored intheforebayusingtwopiecesofPVCpipethatwereeachsixincheslongandhadaninsidediameteroftwoinches.Eachpipewascutinhalflengthwise, rejoinedusinghoseclamps,andattachedtoaropeatintervals ofaboutthreefeet.Theseweredeployedatthecentrallocationatmid-depth.

OnesamplerwasintendedtobeexposedtoClamTrolCT-2andtheotherwasnottobeexposedtothetoxicantduringtheClamtroltreatment.

Cumulative monitoring wasdesignedtoprovideinformation onaccumulated infestation throughout thegrowingseason.Therewerenoproprietar'y molluscide treatments in1996.2.2.3Periodicand'umulative SampleAnalysis~~~Analysiswasconducted withanOlympusSZ-1145binocular microscope (18-110X) equippedwithcross-p".larizing filters.Afteronesideoftheslidewasscrapedclean,theslidewasplacedonthemicroscope sothattheattachedpostveligers couldbecounted.Whens..becheheavilyinfested, asubsampling technique wasfollowed:

Theslidesweresubsampled usingasplitterthatpermitted eitherhalforaquarteroftheslidetobecounted.Countswerethenproportionally extrapolated toonesquaremeter.Settlement rateswerecomputedbytakingtheaveragevalueofthe10slidesandmultiplying thisvalueby533.34toobtainthedensityofzebramusselspersquaremeter."(Onepostveliger/microscope slideequals533.34veii~erspersquaremeter.)2-3Lawler,Matusky8'kellyEngineers LLP

Shelldiameters weremeasuredforupto50selectedandrandomindividuals forbothunsubsampled andsubsampled slidestoobtainmaximum,minimum,andmeansizes.Diameters weremeasuredusinganocularmicrometer calibrated toastagemicrometer.

2.3QUALITYASSURANCE

/QUALITYCONTROLAtotalofthreesamplingdateswerereanalyzed byMr.JeffreyMensinger (whoconducted thiszebramusselmonitoring programforLMSduringtheperiod1992through1994}forprecision andaccuracyofthecountingprocedures.

Sampleswereshippedtoanoff-sitelaboratory andanalyzedusingthesameprocedures astheoriginalanalysis.

Datesreanalyzed included27June,31October,and12December1996.Oneliterofwholewater andoneslidefromeachsamplingsite(bothcumulative andperiodicartificial substrates) werereinspected.

24Lawler,MatuskyScSkellyEngineers LLp

CHAPTER3RESULTSANDDISCUSSION 3.1WHOLE-WATER SAMPLINGSamplingofplanktonic veligersinthecirculating watersystemwasinitiated on25April1996andcompleted on12December1996.Fifty-six samplesweretal'en(twopersamplingdate)fromthestation's intakeforebay.Themonitoring systemperformed uptoexpectations.

Thecontinued useofanelectronic flowmeter provideddatacomparable tothoseofthe1993,1994,and1995monitoring programs.

Asaresult,directcomparisons withthosedatacanbemade.Resultsofsamplingarepresented inFigure3-1andTable3-1.Withtheexception ofthe25Aprilsamplingdate,veligerswerepresentinallsamplescollected.

Themajordensitypeakwasobservedon10October(292,750/m

).Lesserpeaksofabuiidance occurredon26September (92,250/m

),17October(57,250/m

),24October(53,450/m

),and31October(55,650/m3).

Aswasobservedinpreviousyears,veligerpresencethroughout themonitoring program(exceptforApril)suggeststhatsubstantial densities ofveligrsareinthewatercoltlŽnformorethansixmonthsoftheye~..Heaviestspawningactivityoccurredduringthemid-Ocl'.'i:liod.

Duringthesevenweeksfrommid-September throughtheendofOctober,meanveligerdensities wereapproximately 85,280/m, whichwasabout84,000/mgreaterthanthesameperiodin1995andsimilartodensities recordedin1994.In1993and1995,thepeakabundances wererecordedduringthissevenweekperiod;whilein1994,peakabundance occurredatypically inJune.ThelateSeptember-October periodofpeakabundance ismoretypical-forthelowerGreatLakes(O'eil,personalcommunication).

ItisthoughtthattheJune1994peakwasmoretheresultofunusually hotweatherthatoccurredturingthefirsttwoweeksofJunethanenvironmental differences betweentheearlyfallperiodsamongsttheyearsofrecord.3-1Lawler,Matusky4SkellyEngineers LLP FIGURE3-1WHOLE-WATER SAMPLINGPROGRAMVELIGERSPERCUBICMETER,D.C.COOK,1996292)750104470)rD7Oo1O.0ZApr25May23Jun1Nov2SAMPLINGDATE13Jun27Jul11Jul25Aug8Aug22Sep5Sep19Ocl3Ocl17~31May9Jun6Jun20Jul3Jul18Aug1Aug15Aug29Sap12Sep26Ocl10Ocl24Ncy7 0

TABLE3-1WHOLEWATERSAMPLINGPROGRAMVELIGEP.S PERCUBICMETER,D.C.COOK,1996DATEDENSITY(No./m3)SIZERANGE(pm)MEANSIZE(pm)4/25/965/09/965/23/966/06/966/13/966/20/966/27/967/03/967/11/967/18/967/25/968/01/968/08/968/15/968/22/968/29/969/05/969/12/969/19/969/26/9610/03/9610/10/9610/17/9610/24/9610/31/9611/07/9611/21/9612/12/9601501,1752501,375500253,6256251,95017,0006,3251,7009,67515,9259755,9758,27535,42596,2506,200292,75057,25053,45055,65017,4754,600925100-16075-625120-50080-13090-33012590-320100-15090-13090-18090-200100-23090-330100-330100-260'0-230100-26090-300100-300100-39090-33090-330100-400100-430130-330100-560100-560130118213100140125105114103110'142193138158174150I/4144165189197219216202216232363

Sizedataforthe1996samplingseasonshowsthattranslocators wereactiveintheforebayon23Mayand6June.Spawningcommenced between25Apriland9Mayandcontinued throughthemiddleofDecemberasindicated bythelowerportionofthesizerangedata.Sizerangedataalsoshowthattranslocators werepresentinthewatercolumnfrom23Maythrough6Jurebutthenwereabsentfromthesamplesfortheremainder ofthesamplingseason.Onmostotherdata,theupperendofthesizerangeexceededthesizeofsettlement (200-225pm) andwasinorexceededthisrangeoneverysamplingdatefrom1Augustthrough12December.

However,meansizedidnotapproachthissettlement sizerangeuntilOctober.Insummary,zebramusselveligerswerepresentinthewatercolumnonallsamplingdatesexcept25April.Spawningcommenced between25Apriland9Mayandcontinued throughmid-December.

Peakveligerdensities occurredduringthesevenweekperiodfrommid-September totheendofOctoberwhichistypicalforthelowerGreatLakesandhasbeenreportedattheCookPlantforthreeofthelastfouryears(1993,1995,and1996).3.2ARTIFICIAL SUBSTRATE SAMPLING3.2.1Circulating WaterSystemArtificial substrate monitoring wasconducted atthecenterforebaylocation(whichisprotected byadeflector

-"11):;om23Mayto12December1996.Periodicsettlement r;.',arthecirculating watersystem(forebay) areshowninFigure3-2.Table3-2providesdensityandsizeinformation forsettledpostveligers.

Settlement intheforebayoccurredonallperiodicsamplingdatesin1996except6Juneand25July.Densityinformation presented inTable3-2indicates thatsettlement waslowfrom6Junethrough5September (0-8600lmz).

Severaltranslocators settledonthesubstrates duringthe6"Juneto11Julyperiod.Firstevidenceofsettlement of1996spawnedzebramusselswasobservedon20June.Heaviestsettlement occurredbetween5September and21Novemberwiththepeakoccurring duringthe3Octoberto17Octoberperiod.ThisistypicalforthelowerGreatLakesandisconsistent withresultsreportedforthe1992,1993,and19943-2Lawler,Matusky&SkellyEngineers LLp

FIGURE3-2ARTIFICIAL SUBSTRATE SETTLEMENT-FOREBAY NUMBERSPERSQUAREMETER,DCCOOK,1996*~14E18U80tDCL0ZJun6Jul11Aug8Sep5Jun20JUI25Aug22Sop19SAMPLINGDATEOct3Oct17Oct31Nov21Dec12

TABLE3-2ZEBRAMUSSELDENSITY,AVERAGESIZE, ANDSIZERANGEOFSETTLEDPOSTVELIGERS FROMPERIODICSAMPLING, D.C.COOK,1996PERIODICSAMPLESDATEFOREBAYAvg.DensitySizeRange(No/.m)(rm)Qm)Dense(Norm)NESWAvg.SizeRangeQm)(pm)Dense(Norm)MS&,CAvg.SizeRangeQm)Qm)ESWR-1Avg.Dens/SizeRange(NoJm)(rm)Dense(No./m)ESWR-2Avg.SizeRange(pm)gm)6/06/966/20/967/11/961'25/968/08/968/22i969/05/969/19/9610/03/9610/17/9610/31/9611/21/9612/12/969,6003.20064074746,45364,533158,61370,56025,8672,880193415140-260140-1,475 2512451$43902$M302004303951~802742004608&400180400200-46029126M401,6001,60027204,2535,60031,6801,7075,173120-180100-1602673731251M-1603,520175249140-2001M.2801304606,3472,2"013O3301991304004,0001,173310100-7602071M-26012,053130130130130238200430126100-16011690-230271167140-200199100-260148100430235100460223lOM302301Eh%0531,6001604803733,147-1,1735,92020,4801,813989O-1OO117100-130117100-130137100-170193100-23022110O440239.180300268160-36023310040021010O4301602077472,0802.5609,2804,9602.7205,387120120126100.160124100-160153100.200212100-260192100~0226100-500194100-330386200-1.050 3372004304Onetranslocator at4620(rm)notinlcluded.

monitoring programs(LMS1993,1994,1995),butlaterthan1995whensettlement intheforebaypeakedbetween13Julyand17September (GLEC1996).Similarto1994and1995results,verylittlesettlement occurredduringthelateNovembertomid-December period.Basedonsizedata,themajorityofthoseindividuals settlingduringthisperiodwerepostveligers whoseaveragesizerangedfrom283to290pm.TwosixinchlongpiecesofPVC(ID2in.)weresuspended intheforebaytomonitorcumulative settlement.

Theobjective ofthisprogramelementistocomparethepostClamtroltreatment settlement tothatoftheentiresamplingseason.Datacollected inpreviousyearsindicates thatmuchoftheannualsettlement occursafterthetreatment.

Thisprogramobjective wasnotmetin1996becausemolluscicide treatment wasnotadministered andthesampleswerelost.3.2.2ServiceandMiscellaneous SealingandCoolingWaterSystemsThereturnsidesoftheESWandNESWsystemsweremonitored during1996.TheESWsystemsofbothUnits1and2weremonitored throughout thesamplingperiod;butonlytheUnit1NESWsystemwassampledin1996.Asidestrewbioboxmonitorwasalsoplacedonthemiscellaneous sealingandcoolingwatersystemwhichdrawsitswaterfromasourceseparatefrc::;thatoftheservicewatersystems.TheESW,NESW,andmiscellaneous sealingandcoolingwatersystemswerescheduled forchlorination frommid-Maytt.u..ndofNovember.

Periodicsettlement densities fortheservicewatersystemsanddiemiscellaneous sealingand'oolingwatersystemareshowninTable3-2andFibre3-3:Settlement occurredinlowdensities atNESWR-l,ESWR-l,andmiscellaneous sealingandcoolingwatersystemonthefirstretrieval date(6June),butdidnotappearonartificial substrates setatESWR-2until11July.Densityandsizeinformation (Table3-2)showsthatsettlement wassparseatalllocations duringJunewithdensities rangingfrom0to160U/mz.Sizedataindicatethatmostpostveligers collected inJunewerespawnedduringMay,withseveraltranslocators alsoappearing onthesubstrates.

3-3Lawler,MatuskyBcSkellyEngineers LLP

FIGURE3-3ARTIFICIAL SUBSTRATE SETTLEMENT-PERIODIC SERVICEMfATERANDMISCELLANEOUS COOLINGIfATERSYSTEMSPOSTVELIGER DENSITYPERSQUAREMETER,D.C.COOK'f99631,68020>480h~hhhhhhhhihh'hhhtESWR-1NESWMS&CESWR-2Jun6Jun20Jul11Jul25Aug8Sep5Aug22Sep19SAMPLINGDATEOct17Oct31DNov21ec12 Figure3-4presentsthecomparison ofperiodicsettlement densities withthoseofwholewater veligersforthesamplingseason.Asexpected, thesedatashowthatperiodsofincreased'ettlement inthesystemsmonitored lagincreases inwholewater densities byaboutonetotwoweeks.Thisisparticularly evidentduringthemid-September toendofOctoberperiod.Becausetotalresidualchlorinedataarenotavailable forthelast,twoweeksofOctober,itcannotb:determined whetherthesettlement.

wastheresultofinsufficient availability ofchlorinetopreventsettlement.

Chlorinewasadministered continuously tothetreatedsystemsfortheentireseasonin1996.Totalresidualchlorinedatawerereportedonaweeklybasis(Table3-3).'1'herewereseveraloccasions duringtheseasonwhennodataareavailable.

Theseinclude18Julyand25and31October.TheOctoberdatescoincidewiththelanerpart.ofthepeakspawningperiodandinadequate chlorination mayberesponsible forthehighdensities recordedatbothNESW(31,680/m

)andESWR-1(20,480/m

)locations on31October.Conversely, lowerdensities wererecordedatmiscellaneous sealingandcoolingandESWR-2locations on31Octoberthanontheprevioussamplingdate(17October)whenpeaksettlement occurredatbothlocations.

Inspection ofthedischarge monitoring report(DMR)forOctoberindicates thatchlorination wascontinuously appliedtothesystemsfrom19through31October.Thissuggeststhateitherthedosagewaslowontheefficacyofthechlorinehadbeenreducedbycondition beyondthecontrolofplantstaff.TheESWsystemsarecrossconnected downstream oftheonechlorineinjection pointthatservesbothESWsystems.TheseparatechlorineinjectlocationthatservestheNESWsystemalsoservesthemiscellaneous sealingandcoolingsystem.Considering thesecrossconnections, thedataaresomewhatconfounding.

Onepossiblexplanation isthatchlorineisnotbeing.equallydistributed throughthecrossconnections.

Inspection oftheremainder ofthedataindicates thatsettlement wasprevented/controlled fromMaythroughthetifthofSeptember.

Then,asthepeakspawningoccurredandlargenumbersofpostveligers ofsenlement sizecameintothesystems,densities ontheperiodicartificial substrates increased untilthepeakswerereachedinth:latterhalfofOctober(whichcoincided 23Lawler,Matusky8cSkellyEngineers LLP

FIGURE3-4WHOLEWATERVELIGERDENSITYANDPERIODICSETTLEMENT INTHESERVICEWATERSYSTEM,D.C.COOK,1996E3NESWMSECmIESWR-1K3ESWR-2WholeWater250Q)EOS)OtDEOC150:">o~mC0)CIL0)6$100tD0~PxsApt25May23Jun13Jun27Jul11Jul25Aug8Aug22SeP5SeP19Oct3'ct17Oct31Nov21May9Jun6Jun20Jul3Jul18Aug1Aug15Aug29Sep12Sep26Oct10Oct24Nov7Dec12SAMPLINGDATE

TABLE3-3CHLORINATION DATAFORTHESERVICEWATERSYSTEMS,D.C.COOK,1996DATENESWppmUNITIESWppmMS&CppmUNIT2ESWppmMay17May23May30Jun6Jun13Jun21Jun27Jul3Jul11JUI25Aug1Aug8Aug15Aug22Aug29Sep5Sep12Sep24Sep27Oct2Oct10Oct17Nov6Nov21'ov280.490.220.510.480.290.820.300.760.500.090.480.390.270.250.470.410.280.010.040.080.520.530.470.890.650.470.780.380.020.30ND0.730.300.410.080.260.150.140.130.400.040.210.090.010.621.040.010.030.020.78ND'.06<0.01<0.010.130.710.580.380.850.140.290.470.290.310.600.550.010.030.421.110.080.650.020.880.670.110.930.240.400.31ND0.640.410.570.130.420.810.450.280.891.12.230.15ND0.580.920.010.850.050.60*ND-Nodata3-4B25 0

withlackofchlorination data).Sizedatashowthatthemeansizeofpostveligers onthesubstrates weregenerally belowthethreshold forsettlement until19September.

Inspection ofthesmallerindividuals thatwerecollected revealedthattheyweredeadwhichindicated thatthechlorinewaseffective.

ItwasnotuntilthelatterpartofOctoberthattrulysettled,liveindividuals wereobservedonthesubstrates.

Thesecontinued toappearonthesubstrates untiltheendofthesamplingseason.Forthefirsttimeinthismonitoring program,settlement ofpostveligers continued inallthesystemsthroughNovemberuntiltheprogramwasconcluded inmid-December.

Theobservation ofanincreaseindensityatthreeofthefourin-plantmonitoring locations between21Novemberand12Decemberwasunexpected.

Thisappearstobeacombination ofthedensities ofveligersintheintakewaterandtheefficiency ofthechlorineatcoolerwatertemperatures inwaterthattypically exhibitshighpH.Figure34presentsinformation showingwholewater veligerandperiodicsettlement densities forthesamplingseason.Wholewater densities continued tobeabove50,000/m~

untilthefirstweekofNovemberandremainedabove17,000/m~

through7November.

Theseveligerscontinued togrowandbecamepostveligers ofsettleable sizebythethirdweekofNovember.

Mostlikely,veligerswerepresentinthelakewaterafter21Novemberandthesethenwereincludedintheunexpected periodicdensities recordedon12December.

Wholewater densities recordedduringthe1993through1995programsfortheNovember-December samplingperiodswerelessthan1000/m3forsamplingconducted afte~~Nc.~mber.

Thissuggeststhatspawningcontinued intothelate'earlywinterperiodin1996.ThisisatypicalinthevicinityofD.C.CookPlantbasedonfouryearsofdata.Apreliminary reviewofchlorinechemistry indicates thatpHmayhaveagreaterinfluence drivingthereactionthantemperature asshowninthefollowing table.PercentHyperchlorous AcidinSolutionTemperature pH7.5pH8.05'C64.336.310'C33.03-5Lawler,Matusky&Skelly,Engineers LLP

'L Activityratesofreactionareinfluenced bytemperature andthoseactivities areinfluenced bypH.Anydifference.

betweenyearsintemperature and/orpHwillmodifytheeffectiveness ofthechlorine.

Comparison ofdailywatertemperatures recordedontheDMR'sforthemonthsofOctober,November.

andDecemberfor1993through1996indicates thatintakewatertemperatures inOctober1996wereconsiderably warmerthanthepreviousthree,"ears, particularly duringthesecondhalfofthemonth.NovemberandDecember(first15days)meanintakewatertemperatures in1996weresimilartothoseof1993and1994butwarmerthanin1995.Ascanbeseeninthetablebelow,Decembermeanintakewatertemperatures recordedin1996werecoolerforthisperiodthaninboth1993and1994.MeanIntakeWaterTemperatures

'FYear1993199419951996Oct(1-15) 59.856.760.163.4Oct(16-31) 56.755.655.159.8Nov49.048.145.8489Dec(1-15) 44.643.438.842.2+canintakewatertemperatures reflectlakeconditions whichweremoreconducive tozebramusselspawningduringbothhalvesofOctoberin1996thantheywereinthepreviousyears.However,thedataforbothNovemberandtheflrthalfofDecemberdonotsuggestthatintakewatertemperatures in1996wouldhavebeenconducive tocontinued spawningduringtheNovember-December period.Therefore, itisreasonable toconclude, thatthefavorable spawningtemperatures duringthesecondhalfofOctober1996wereatleastpartially responsible forthesettlement observedontheartificial substrates inbothNovemberandDecember.

Changesmayalsohaveoccurredinthewaterqualityconstituents thatusechlorineasanoxidant,e.g.,iron,manganese, andammonia.Ammoniaisparticularly important becauseitformschloramines withchlorine.

TheseoftenaremeasuredintheTRCreadingssuggesting thatthetargetisbeingmet.However,chloramines arenotasreactiveasfreechlorine(therefore, notaseffective) althoughtheyaremorepersistent inthewatercolumn.Inthecase3-6Lawler,Matusky&SkellyEngineers LLp27 ofCookPlant,thiswouldreducetheeffectiveness becausetheflowthroughtheservicewatersystemsremainsrelatively rapid,thatis,itdoesnotremaininthesystemlongenoughforthechloramines tobeeffective.

Anotherpossibleexplanation fortheveligersandpostveliger senlement observedduringNovemberandDecemberisthattheindividuals wereearlylifestagesofquaggamussels(Dreissena bugensis),

arelativeofzebramussels.Quaggamusselstendtoinhabitdeeper,colderwatersandspawningisnotlimitedbycolderwatertemperatures.

Therefore, itisfeasiblethat,aslakewatertemperatures decreased duringNovemberandDecember, theseHmussels(ifpresent)continued tospawnandtheearlylifeformswerecollected.

Earlylifestagesofmuss'elsbelievedtobequaggamusselshavebeguntoappearduringcoldweathermonthsatothersamplingsitesalongtheGreatLakesduringthelast,twotothreeyears(L.RayTuttle,personalcommunication).

Itisplausible thatanadultpop!lation ofquaggamusselshasbecomeestablished inthevicinityoftheCookPlantintakeandhasreachedsufficient numberssuchthattheeffectsoftheirspawningisbeginning tobeobservedinthisproject.Asecondsetofdatawascollected fromeachoftheservicewatersystemsandmiscellaneous sealingandcoolingwatersystemforthepurposeofdetermining theeffectiveness ofchlorination duringtheentiresamplingseason.Thesecumulative densities andassociated sizeinformation:"-

~resented inFigure3-5andTable3-4.Artificial substrates usedforcumulative analyseswereseton23Mayandsetsof10slideswereretrieve~

fromeachlocationatmonthlyintervals throughout thesampling'seasonbeginning on20June.Resultswereevaluated inconjunction withperiodicdatatobetterunderstand pcstveliger settlement inthesystems.Densitydataindicatethatfewpostveligers wereontheartificial substrates collected from20Junethrough22AugustatNESW,ESWR-2,andmiscellaneous sealingandcoolingsystems.Concentrations attheESWR-1locationwassomewhathigherthantheotherlocations duringthisperiod.Sizeinformation showsthat,withtheexception ofseveraltranslocators collected atthemiscellaneous sealingandcoolingwaterlocation, mostoftheindividuals ontheslidesatalllocations werebelowthethreshold sizeforsettlement.

Furthermore, thesespecimens 3-728Lawler,Matusky4SkellyEngineers LLp FIGURES-SARTIFICIAL SUBSTRATE SETTLEMENT-CUlVlULATIVE SERVICEWATERANDMISCELLANEOUS COOLINGWATERSYSTEMSPOSTVELIGER DENSITYPERSQUAREMETER,D.C.COOK1996I1L6)1EQ)41GJtotDO.0ZJun20Jul25Aug22tk..Sep19SAMPLINGDATEOct17Nov21Dec12NESWMS8CESWR-2ESWR-1

TABLE3-4ZEBRAMUSSELDENSITY,AVERAGESIZE, ANDSIZERANGEOFSETTI.EDPOSTVELIGERS FROMCUMULATIVESAMPLING, D.C.COOK,I99tiCUMULATIVE SAMPLESDATENESWAvg.DensitySize(No./mz)(pm)Range(pm)Density(No./m)MS&CAvg.SizeRange(pm)(pm)ESWR-IAvg.DensitySize(No./m)(pm)Range(pm)Density(No./mz)ESWR-2Avg.SizeRange(pm)tpm)6/20/967/25/968/22/969/19/9610/17/9611/21/9612/12/96532302305872,9876,0803,52011390-160221100-300232100450387200-1,030 17,013425200-8001,9202,88015,8931,1732,98712190-39020310040021890<00380180-880314100-660373279170-4601,067155130-2002,13310390-1201,173119100-1602,667174100-2606,613246100-7001,120327160-6903,466376200-7305,2273,4671,6006,880199130-260246100-500.307160-460415200-8600373103100-120 0

exhibited nosignsoflite(beatingciliaandstomachmovement).

Thereasonable conclusion isthatthechlorinewasveryeffective throughout thesummer.Asthedensities ofveligersincreased inwholewater samplesduringthefall,densities onthecumulative artificial substrates alsoincreased asmightbeexpected.

Theobservation thatpeakdensitcccurredatthemiscellaneous sealingandcoolingwatersystemsandtheESWR-Isystemson17Octoberwasnotsurprising becausewholewater densities peakedon10October.However,peakdensities occurredattheothertwolocations on12DecemberwiththeNESWdensitybeingthehighest(17,013/m

)fortheyearforallcumulative samples.Thiswasunexpected andmayhavebeentheresultofalackofsufficient chlorination thatseemstohaveoccurredduringthelatterhalfofOctober.Thediscussion regarding efficacyofchlorineduringthislatefallperiodwhichispresented above(periodic artificial substrate results)appliestothecumulative resultsaswell.Sizedatashowtwoexpectedandoneunexpected results.Meansizesprogressively increased

'hroughout thefallperiodatalllocations (exceptforthelastsamplingatthemiscellaneous sealingandcoolingsystem);andgenerally, thehighendofthesizerangesalsoincreased duringthefallperiod.Thesomewhatunexpected resultwasthelowendofthesizerangeswhichindica'.dthatrecentlyhatchedpostveligers continued tosettleonthesesubstrates untilthemiddleofDecember.

Thepresenceofthesesmallerveligerssuggeststhatsettlement mayhavecontinued atsomelowrateafterthemonitoring programwasdiscontinued fori.season.Furthermore, mostofthoseorganisms observedontheartificial substrates inDecemberwerealive.Itisreasonable toconcludethatchlorination wasnotveryeffective duringthelatefallperiodin1996.3.3QUALITYASSURANCE/QUALITY CONTROLSAMPLESTheresultsoftheQA/QCsamplesanalyzedin1996aresummarized inTable3-5.Thesereinspections includedbothoriginalanalyzers usedforthisprojectandwereconducted byathirdanalyzer.

Becauseoneslidefromeachsetof10analyzedoneachsamplingdatewasrandomlyselectedforre-analysis, nostatistics wereapplied.However,resultswerecompared3-8Lawler,Matusky&SkellyEngineers LLP TABLE3-5RESULTSOFQA/QCSAMPLES)D.C.COOK,1996SAMPLESAMPLESAMPLEDATETYPELOCATIONONSITEDENSITYQA/QCDENSITY%AGREEMENT Jun27Wholewater Forcbay2525100.0Oct31Wholewater PeriodicPeriodicPeriodicPeriodicPeriodicForebayForebayESWR-1ESWR-2NESWMS&C56,00053,86621,3334,78025,6004,80059,40044,80019,7334,2674,80094.383.292.589.3ltK.ODec12Wholcwatcr PeriodicPeriodicPeriodicPeriodicPeriodicPeriodicCumulative Cumulative Cumulative Cumulative ForcbayForcbayESWR-1ESWR-2NESWMS&CCirc.H>OESWR-1ESWR-2NESWMS&C9253,2003,20037333,2005331,0665,3333,2006,9333,2007503,2002,6673,7333,2005332,1335,3332,6676,4003,20081.1100.083.3100.0100.0100.050.0100.083.392.3100.0'lidebrokenintransit.3-8A32 t'orpercentagreement betweenthetwoanalyses.

Ineachcasewhereartiticial substrate resultsfellbelow100%,thereinspection resultwaslowerthantheoriginal.

ItwasobservedbytheQCinspector thatspecimens werelyingfree,i.e.,offtheslide,inthepackaging.

Theconclusion isthatafewindividuals onthoseslidewerenotsolidlyattached, perhapsevendead,andfellfromtheslidesduringshipping.

Giventhisexplanation ofdifferences, theartificial substrate datareportedinthisprogramareacceptable.

Thedifference inthewholewater analysesforthe12Decembersampleisattributed tolownumbersofveligersinthesample.Thesemayhavesettledinthe!iterbottleduringshipmentandnotresuspended whenagitatedbytheQCinspector.

Wholewater resultsaredeemedtobeacceptable.

3-933Lawler,Matusky&SkellyEngineers LLP CHAPTER4SUMMARYANDRECOMMENDATIONS 4.1SUMMARYThe1996zebramusselsamplingwasinitiated on25Aprilandcontinued to12December.

ThemajorspawningpeakoccurredduringthefirstweekofOctoberwithlesserpeaksoccurring duringthethirdweekofSeptember andthelatterhalfofOctober.Themagnitude ofthepeakwastwoordersofmagnitude greaterthanthe1995peak,whichwasatypically low,andabout60%ofthepeakreportedfor1994.Peakpostveliger settlement intheforebayoccurredduringthe3-17Octoberperiodwhichfollowedpeakwholewater densities byabouteightto10daysasexpected.

Secondary peaksinsettlement wereobservedfortheperiodsbothjustbeforeandafterthemajorsettlement peak.Fallspawningandsettlement peaksaretypicalfortheloiterGreatLakes.Cumulative settlement observations werenotmadefollowing molluscicide treaunent becausetreatment wasnotadministered in1996.Periodsofheaviestperiodicsettlement occurredduringthemid-September toendofOctoberperiodinallplant,.;erns monitored.

Thiscorresponded topeakperiodsofspawningasmeasuredinthewholewater samples.Duringtheearlypartofthisperiod(mid-September tomid-October),

fewlivemusselswereobservedonthesubstrates.

However,frommid-October throughtotheendofthemonitoring season,livespecimens wereobservedontheslides,particularly inNovemberandDecember.

Thissuggeststhatchlorination waslesseffective duringthisperiodthanearlierintheseason.Cumulative settlement intheservicewaterandmiscellaneous sealingandcoolingsystemswasessentially prevented fromMaythroughthefirstp'artofSeptember.

Thefewspecimens onthesubstrates weredeadwhichisindicative ofeffective chlorination.

Thenaspeakspawningoccurred, densities increased peakinginmid-October inthemiscellaneous sealingandcooling4-134Lawler,Matusky&SkellyEngineers LLP andESWR-Isystems.Thiscorresponded topeaksinperiodicsettlement.

However,settlement unexpectedly peakedatNESWandESWR-2on12December.

Manyot'hesespecimens werealivereflecting thereducedlevelofeffectiveness ofthechlorination programduringtheNovember-December period.Growthofsettledpostveligers alsooccurredduringthisperiodreinforcing theconclusion thattheeffectiveness ofthechlorination programwasreducedduringthisperiod.4.2RECOMMENDATIONS Basedonobservations madeduringthecourseofthisprogram,LMSismakingseveralrecommendations:

Whole-water samplingshouldcontinuetobeinitiated inApriltodetermine thepresenceofveligersinthewatercolumn.Studiesofpostveliger settlement substrates shouldcontinuetobeconducted fromMaythroughDecember.

Inspection ofthesubstrates shouldincludeanempting tomovethepostveligers withaprobetodetermine whethertheyarestillmotilorhavebeguntolaydownbyssalthreatsforpermanent attachment.

Thechlorination systemshouldbemaintained toensureappropriate intermittent orcontmuous deliveryofchlorinetocontrolpostveliger, settlement (1May-IUecember),

particularly inlightofthe1996results.Basedonset'"~entdatafromtheearlypawofthepiogram(May-June),

chlorineshouldbedelivered totheservicewatersystemsbeginning duringthefirsthairofMay.Thisshouldreduce/eliminate thetranslocators fromestablishing residency inthecriticalservicewatersystems.Dailychlorination datashouldbemadeavailable toallowmoremeaningful interpretation ofresults.Severalotherwaterqualityparameters including pHandammoniashouldbemonitored attheintaketoaidindetermination ofefficacyofchlorine.

Also,concentration ofchloramines shouldbedetermined downstream ofthebioboxesforthesamereason.4-2Lawler,MatuskyASkellyEngineers LLP35

REFERENCES Lawler,Matusky,&SkellyEngineers U.t.1994.Molluscbiofouling monitoring during1993,DonaldC.CookNuclearPLant:FinalReport.46pp.Lawler,Matusky,&SkellyEngineers t.t.p.1995Molluscbiofouling monitoring during1994DonaldC.CookNuclearPlant:FinalReport.52pp.GreatLakesEnvironmental Center.1996.Azebramussel(Dreissena) monitoring surveyfortheDonaldC.CookNuclearPlant.FinalReport.37pp.4-3Lawler,Matusky&SkellyEngineers LLP36

APPENDIXVSPECIALREPORTS APPENDIXV.ANospecialreportswereidentified duringthe1996reporting period.

APPENDIXVIANNUALREPORT:RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM1996

DONALDC.COOKNUCLEARPLANTUNITS1Bt2OPERATIONAL RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM1996ANNUALREPORTJANUARY1toDECEMBER31,1996PreparedbyIndianaMichiganPowerCompanyaIldTeledyneBrownEngineering April15,1997

TABLEOFCONTENTSSECTIONTITLEPAGESummaryIntroduction SamplingandAnalysisProgram6III.SummaryandDiscussion of1996Analytical Results...........

15A.AirborneParticulates......

BAirborneIodine.16.18C.DirectRadiation

-TLDs.................

.19D.SurfaceWater..19E.Groundwater

..21F.DrinkingWaterG.SedimentH.Milk~~~~~~~~~~~~~~~~~~~~~~~~~~~25~~~~~~~~~~~~~~~~~~~~~~~~~~~~~2527I.Broadleaf Vegetation

...JRshi~~~~~~~K.FoodProducts.....

..27~~~~~~~~~~~~~~~~~2728IV.Conclusions........

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~29V.References

..................

33 00 TABLEOFCONTENTS.

(Cont)APPENDICES APPENDIXA-Radiological Environmental Monitoring ProgramSummary-1996....35APPENDIX3-DataTables.40APPENDIXC-Analytical Procedures Synopsis~~~~~o~67APPENDIXD-SummaryofEPAlnterlaboratory Comparisons

...........

77APPENDSE-REMPSamplingandAnalytical Exceptions.............

107APPENDIXF-LandUseCensus....................................

111APPENDIX6-SummaryofthePreoperational Radiological............

118Monitoring ProgramAPPENDIXH-SummaryoftheSpikeandBlankSampleProgram.......

122APPENDIXI-TLDQualityControlProgram.'...............

135

TABLEOFCONTENTS(Cont)LISTOFFIGURES1.OnsiteREMPMonitoring Locations 2.OffsiteREMPMonitoring Locations 3.FishSamplingLocations

....4.MilkFarmSurveyTable5.Residental LandUseSurveyTable............

6.MilkFarmSurveyMapResidential SurveyMap121314.114115116117LISTOFTRENDINGGRAPHSAverageMonthlyGrossBetainAirParticulates

....17DirectRadiation

-Quarterly TLD'sTritiuminGroundwater TritiuminDrinkingWater..EPACrossCheckProgramQualityControlTLDs..~~~~~~~~~~~~o2022~~~~~~~~~26.83~~~~~~~~~~~~~~~~~~~~~~~~~137 0

LISTOFTABLESTABLETITLEPAGEB-lConcentrations ofGrossBetaEmittersinWeekly..................

41AirborneParticulates B-2Concentrations ofGammaEmittersinQuarterly....................

45Composites ofAirborneParticulate SamplesB-3Concentrations ofIodine-131 inWeeklyAirCartridge...............

47Sample'sB-4DirectRadiation Measurements

-Quarterly TLDResults.............

51B-5Concentrations ofIodine,TritiumandGammaEmittersinSurfaceWater52B-6Concentrations ofTritiumandGammaEmittersin......~....~.....54Groundwater B-7Concentrations ofGrossBeta,iodine,Tritiumand.GammaEmittersinDrinkingWater57B-8Concentrations ofGammaEmittersinSediment.........

.59B-9Concentrations ofIodineandGammaEmittersinMilk..............

60B-10Concentrations ofIodineandGammaEmittersin..................

61Broadleaf Vegetables B-11Concentrations ofGammaEmittersinFish63B-12Concentrations ofGammaEmittersinFood/Vegetation

.64B-13GammaSpecLLDsandReporting Levels...65iv

SUMMARY INDIANAMICHIGANPOKERCOMPANYDONALDC.COOKPO~RNUCLEARPLANTRADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAMSUMMARYThisreportsummarizes thecollection andanalysisofvariousenvironmental samplemediain1996fortheRadiological Environmen-talMonitoring ProgramfortheDonaldC.CookNuclearPlant.Thevariousanalysesofmostsamplemediasuggestthattherewasnodiscernible impactoftheDonaldC.CookNuclearPlantontheenvironment.

Theanalysisofairparticulate filters.charcoalcartridges.

directradiation bythermoluminescent dosimeters, fish,water,milkandsediments fromLakeMichigan, drinkingwater.andfoodproducts, eitherdidnotdetectanyradioactivity ormeasuredonlynaturally occurring radionuclides atnormalbackground levels.Tritium,measuredatlowlevelsinon-sitewells,appearstobetheonlyradionuclide attributable totheplantoperations.

However,theassociated groundwater doesnotprovideadirectdosepathwaytoman.

INTRODUCTION

I.INTRODUCTION 0TheDonaldC.CookNuclearPiant'sRadiological Environmental Monitoring Program(REMP)isconducted "incompliance withNRCRegulatory Guide1.21and4.1,licensing commitments, andTechnical Specifications.

TheREMPwasdeveloped inaccordance withtheNRCRadiological Assessment BranchTechnical Position(BTP),Rev.1,November1979.AsynopsisofthesamplingprogramandmapscanbefoundinSectionII,SamplingandAnalysisProgram.Thisreportrepresents theAnnualRadiological Environmental Operating ReportforUnits1and2oftheDonaldC.CookNuclearPlantfortheoperating periodfromJanuary1,1996throughDecember31,1996.A.TheDonaldC.CookNuclearPlantofAmericanElectricPowerCompanyislocatedonthesoutheastern shoreofLakeMichiganapproximately onemilenorthwest ofBridgm"n.

Michigan.

Theplantconsistsoftwopressurized waterreactors, Unit1,1030MWEandUnit2,1100hAVE.Unit1achievedinitialcriticality onJanuary18,1975andUnit2achievedinitialcriticality onMarch10,1978.BObject'ives Theobjectives oftheoperational radiological environmental monitoring programare:l.Identifyandmeasureradiation andradioactivity intheplantenvironsforthecalculation ofpotential dosetothepopulation.

2.Verifytheeffectiveness ofin-plantmeasuresusedforcontrolling thereleaseofradioactive materials.

3.Providereasonable assurance thatthepredicted doses,basedoneffluentdata,havenotbeensubstantially underestimated andareconsistent withapplicable standards.

4.Complywithregulatory requirements andStationTechnical Specifications andproviderecordstodocumentcompliance.

During1996thefollowing changesweremadetotheOffsiteDoseCalculation Manual(ODCM)Thechangesbecameeffective on10/22/96andincluded:

Addinganattachment whichapprovedon-sitestorageofcontaminated concreteChangedUnitVentilation H-3requirement fromcontinuous toweeklygrabsamples.Removedemergency planvalues-duetoupcomingimplementation ofrevisedEmergency ActionLevels(EAL).Clarified sectiondescribing collection ofbroadleaf vegetation samplesinlieuofmilksamples.Corrected errorinnumbering ofelectrical polewhereTLDstation¹OFT-11islocated.Eliminated theneedforcompensatory samplingofEssential ServiceWater(ESW)systemwhenrespective radiation monitorsareinoperable unlessthecontainment sprayheatexchangers areinservice.

II.SAMPLINGANDANALYSISPROGRAM

II.SAMPLINGANDANALYSISPROGRAMTable1summarizes thesamplingandanalysisprogramfortheDonaldC.CookNuclearPlantforl996.Foreachsamplemedium,thetableliststhesamplelocations, including distanceanddirection fromthecenterofthetwounits,andthestationidentification.

Thestationidentifications forthesamplinglocations areshownonFiguresIand2.Alsoforeachsamplemediumthesamplecollection frequency, typeofanalysis.

andfrequency ofanalysisarelisted.

TABLE1DONALDC.COOKNUCLEARPLANT-1996ltAI)IOI.OGICAI SAMPLINGSTATIONSI>ISTANCI-:

AN(II>Ilail'C.I IONI'ltOMI'LANTAXISLocaUonDistanceDirection DereesCollection PreucncAnal/uencEnvironmental (TLD's)ONS.IONS-2ONS-3ONS-4ONS-5ONS-6(T.OI)(T-02)(T.03)(T-04)(T-05)(T-06)(T-07)(T-08)(T-09)(T-10)(T-II)(T-12)I!)15A.2:138A.2407A.1852A.1895A.1917A.2103A.2208I\.1368A.1390A.1969A.2292ft.18'8o90'18'8qo210'6o82'490127'1'3'uarterly DirectRadiation/Quarterly NewBuffaloSouthBendDowaglacColoma(NBF)(SBN)(DOW)(COL)15.6mlSSW26.2mtSE24.3mlENE18.9mlNNEIntersection ofRedArrowHwy.&Marquette WoodsRd,Pole¹B294-44Stevensvllle Substatlon Pole¹B296-13Pole¹B350-72Intersection ofShawnee&Cleveland.

Pole¹B387-32SnowRd.,Eastol'Holden Rd.,¹B426-1BrldgmanSubstaUon Callfornla Rd.,Pole¹B424-20RugglesRd.,PoleB369-214IntersecUon ofRedArrowHwy..&Hlldebrant Rd.,Pole¹B422-152 IntersecUon ofSnowRd.&BaldwinRd.,Pole¹B423-12(OFT-I)(OFT-2)(OFT-3)(OI'T-4)(OFT-5)(OFT-6)(OFT-7)(OFT-8)(OFT-9)(OFT-10)4.5mlNE36mlNE51mlNE4.1mlE4.2mlESE49n>lSE25mlS40mlS4.4miESE3.8mlS(OFT-11)3.8mlS

TABLE1I<>>>>i.lDONALDC.COOKNUCLEARPLANT-19961thl)I()1.()(ilCA I.SA411'l.l NGSTATIONSI)ISTAN(I:.ANI)I)II(ECTION FltOMl>IDENTAXISLocaUonAirCharcoal/Particulates StaUonDistanceDlrectlon DereesCollecUon FreucncAnalIs/FreuencONS.IONS-2ONS-3ONS-4ONS-5ONS-6NewllunaloSouth(3cndOowaglacColoma(A.I)(A-21(A.:I)(A-4)(A.5)(A-6)(NI3F)(SBN)(Dow)(COL)I!)15>A.2:I:38A.2107A.1852A.1895n.1917n.15.6nil26.2ml24.3n)I18.9n)ISSWSEF.NENNE18'8o)0'IHo18!)'10oWeeklyGrossBeta/Weekly 1-131/Weekly GammaIsotopic/

Quarterly Composllc Groundwater OnslleOnslteOnslteOnslteOnslleOnsltcOnslteOnslteOnslteOnslteOnslteOnslteOnslteOnslte(W-I)(W-2)(W-3)(W-4)(W-5)(W-6)(W-7)=(W-8)(W-9)(W-10)(W-1I)(W-12)(W-13)(W-14)=1969A.2292A.3279ft.418ft.404I'.424A.1895ft.1279I'.1447A.4216A.3206n.2631A.2152A.1780n.11'3o107o301o290'73'89'3'2'29'53 162'82'64 Quarterly GammaIsotopic/Quarterly Trltlum/Quarterly SteamGenerator Groundwater SteamGenerator StorageFacllltySteamGenerator StorageFacllltySteamGenerator StorageFacilitySteamGenerator StorageFaclllty(SG-I)(SG-2)(SG-4)(SG-5)08ml0.7mI07mI07ml.95'2o93'20Quarterly GrossBeta/Quarterly GrossAlpha/Quarterly GammaIsotopic/Quarterly TABLE1(('urerIDONALDC.COOKNUCLEARPLANT-1996l(AI)IOI.()(ll(:Al.

SAMI'l.lNGSTATIONS1)ISTAN(EANI)l)lltl'.C IIONFltOMI'IDENTAXISLocationStationDistanceDtrectlon DcreesCoUcctton FreucncAnalIs/FreencDrlnklnWaterSl.JosephPublicIntakeLakeTownslrlp PtrbllcIntakeStationSurfaceWaterISTJ)!).0nrlILTW)0.4nrlNF.SDallyGrossBeta/14DayCompositeGammaIsotopic/14 DnyComposlte1-131/14DayConrposltc Tritium/gtrartcrly Conrposllc Condenser Circulating WaterIntakeLakeMlchlganShorellnc LakeMlchlganShorcllne SWL-IIntakeSWL-2500A.SWL-3500ft.SNDallyGamn)aIsotopic/Monthly Composlle Tritium/guarterly Composltc C7~Sediment LakeMlchlganShoreline LakeMlchlganShorcllne SL-2SL3500A.500A.SNScml-annually GammaIsotopic/Scml-Annual Freehllng FarmBuchananMlle-Bacround(a)Freehl1ng 7.0mlSE14DaysGammaIsotopic/Sample 1-131/Sample WyantFarmDowagalcLlvinghouse FarmLaPorteWyant20.7mlLlvlnghouse 20.0mlES14DaysGammal~~toplc/Sample 1-131/SampleBroadleaf Veetatton(a)3Indicator Samples1ControlSampleWlthln8mllesol'lant15-25mllesdistantHlghcstD/QLandSectorMonthlywhenLessprevalent winddlrectlon aval)able GammaIsotopic'/Monthly 1-131/Monthly IalNomtlksampleswereobtainedtn1996as2of3Indtcator farmsdroppedfromprogramandnoreplacements couldbefound.Broadleaf vegctatton sampleswereobtainedInltcuofmttkIn1996.

TABLE1I('o>>l.lDONALDC.COOKNUCLEARPLANT-1996l(AI)I()I.O(<<ICAI.

SAMI'I,ING STATIONSl)ISI'AN(I:.rNl)l)II<I:.C1 IONI:feOMIIDENTAXISLocationStationDistanceDirection DerccsCollection FrcucncAnalis/ucncI'IkcMichiganI>kcMlclilgan I'ikcMlclilgan IekeMlcl>i@an ONS-NONS.SOPS-NOl'S-S.:Ia>la3.5>>ll5.0allSS2/yearGammaIsotopic/

2peryearGras/Broadleaf NcarcstsampleloPlantInhighestD/Qlandsectorcontalnlng media.~Gra<<<<Inalandsectorcontalnlng grapesapproximately 20mllesfromthePlantInoneofthelessprevalent D/Qlandsectors.SectorDSectorKAttimeolharvestAttimeofharvestGammaIsotopicattimeofharvest.GammaIsotopicatUmcofharvest.Composite samplesofDrinkingandSurface.watershallbecollected atleast.dally.Particulate samplefiltersshouldbeanalyzedforgrossbetaactivity24ormorehoursfollowing Alterremoval.Thiswillallowforradonandthorondaughterdecay.IfgrossbetaactivityInairorwaterIsgreaterthanIOtimestheyearlymeanofcontrolsamplesloranymedium,gammaIsotopicanalysisshouldbeperformed ontheindividual samples.Pleasenotethefollowing defenltlons:

IVeeklyatleastonceeveryseven(7)daysMonthly-atleastonceevery(3I)daysQuarterly

-atleastonceeveryninety-two (92)daysSemi-annually

-atleastonceeveryonehundredeighty-four (184)days

On-@iteHEMPMonitoring Loccltionsc)'IITLOT-OITLDT-02AIRONS-2h~.cYs.a~'BTLDT-OlAIRONS-ICcWELL'w-2!SVRFACEWATER(SWL-3lSEOIHENT(SL-3(WELLw-IiLDwE(.Lw-9TLDT-I2~(TLDT-OIi('LLSG-SWELLSG-2IELLSG-I~//AIR0NS-3WELLw4WELLw5SURFACEWATER(SWL-IlI~oo(lU'WEl.l.w-0WELLSG-4cIsELLw-6SvoFACEvA(ER(SWL-2(~SEDI((E(((

(5<-2((LDI05AIRD((55ITLOT-AIRO((5-6((~~.1rTLOT-IOTLOT-09tLDT-04,~~~AIRONS-4/wELLw-IO~J)WELLw-l3WELLw-IILAKETwPWELI.LEGENDONSIONS-6(AlrSoeo((noStationsT-Ol-'-I2:TLDSano(inoStationsV-I-r-I~(REHPT/5Grovndsote(

WellsSG-I,SG-2,SG-4,SG-5(REHPNonT/5Groundsoter

'WellsSWL-I,2.3:5~taceWaterSoso((noStat(oneSL-2,3:SedimentSow(in((Stat(one12

LEGE<OGffSITEREIC'GHIIORIHG LOCAIIbye<o<vv<oA<rvlLO<ocot<o~0<<~II~ILO<ocr<ivvOOC<,Or<VV<O H>>afaraaOi<va<oovotre<ocot<o~I~<CO<a>HI<afOaaCQ.OHASt<OSSASIOH

~<SAC<<GROS<HO AIR<<ILOICCCIVrvr'RyO<fIAcpst<<Is<as<OH OACaGoO<pCS~11fISOoclfI4~Of<<<~Sl.JOSE<a<SI.yATERTREAT%HIRAHI<STJ<ac<~VVAIC~CarI'>>A<<(1It~~<HH<sactao<t<V(Hat(RGH<S<ISLO(F'I~~SLOOfle<TLOGfI~RSTLOtFTR~$<Ir(HSI<II(TLOGfT.oaTLOO'RSD.c,co<a<H<sLIAAIS>>,<QLA<<ESoyHS>>loyATERTREAT~HIRAHI<Lly<ILOfI~OAIGG<<avSSOfl:<R~ILOas~II'ILOGfI~ILOOflS(MPHS<H<<<CSHILLBUsG$L~AIRE/////ILES~I<Sa<re<>>a\1IOOvAG<ACSt<BSTAIIOH OACKGRO<<HO AIRIILOtv<~AGIACOACRGRGs<HO fAAVICysAHILAAGR<EOICaGAGLrCS f~~~LlylCrGs<SE~<<<ac~a>><aSOUTHBEIeRAN<A<<EESTAIIO<daeva<(Ape<

AIRITLO<S<TH<13 I')$~~gJ$lIl.,;8%@rK~

.II'/~i'.P~gp.48%<g]'Klli.:i.aR 1.i/%7=.~JKl&~~,-s.a

III.SUMMARYANDDISCUSSION OF1996ANALYTICAL RESULTS15

III.SUMMARYANDDISCUSSION OF1996ANALYTICAL RESULTSAdiscussion ofthedatafromtheradiological analysesofenvironmental mediacollected duringthereportperiodisprovidedinthissection.Analysesofsamplesfor1996wereanalyzedbyTeledyneBrownEngineering, Inc.{TI)inWestwood, NewJersey.Theprocedures andspecifications followedatTeledyneBrownEngineering areinaccordance withtheTeledyneBrownEngineering QualityAssurance Manualandareexplained intheTeledyneBrownEngineering Analytical Procedures.

Asynopsisofanalytical procedures usedfortheenvironmental samplesare'rovedinAppendixC.Inadditiontointernalqualitycontrolmeasuresperformed byTeledyne, thelaboratory alsoparticipates intheEnvironmental Protection Agency'sInterlaboratory Comparison Program.Participation inthisprogramensuresthatindependent checksontheprecision andaccuracyofthemeasurements ofradioactive materialinenvironmental samplesareperformed.

TheresultsoftheEPAInterlaboratory Comparison areprovidedinAppendixD.Radiological analysesofenvironmental mediacharacteristically approachandfrequently fallbelowthedetection limitsofstate-of-the-art measurement methods.TeledyneBrownEngineering analytical methodsmeetorexceedtheLowerLimitofDetection

{LLD)requirements giveninTable2=ftheUSNRCBranchTechnical PositionofRadiological Monitoring, Revisionl.November1979.Thefollowing isadiscussion andsummaryoftheresultsoftheenvironmental measurements performed duringthereporting period.Comparison ismadewherepossiblewithradioactivity concentrations measuredinthepreoperational periodofAugust1971totheinitialcriticality ofUnit1onJanuary12,1975.Abriefsummaryofthepreoperational programisfoundinAppendixG.A.AirborneParticulates Airborneparticulate samplesarecollected withanoillesspumpatapproximately 56LPMusinga47mmparticulate filter.Resultsof16 0

TrendingGraph-1AYERAGEMONTHLYGROSSBETAINAIRPARTICULATES 40a.35La.30OOO25OO20OO151005Qi(ot001/897/891/907/901/917/911/927/921/937/931/947/941/957/951/967/96Indicators

~--e'--Controls gross,betaactivities arepresented inTableB-l.Themeasurement ofthegrossbetaactivityontheweeklyairparticulate filtersisagoodindication ofthelevelsofnaturalandormanmaderadioactivity intheenvironment.

Theaveragegrossbetaconcent.ationofthesixindicator locations was0.020pCi/m~witharangeofindividual valuesbetween0.007and0.036pCi/m~.Theaveragegrossbetaconcentration ofthefourcontrollocations was0.020pCi/m~witharangebetween0.007and0.033pCi/m~.In.TrendingGraph1the.,monthlyaveragegrossbetaconcentrations fortheindicator locations andforthecontrollocations areplotted.Thegrossbetaconcentrations inairparticulate filtersin1996werelowerthanattheendofthepreoperational periodwhentheeffectsofrecentatmospheric nucleartestswerebeingdetected.

Airparticulate filterswerecomposited bylocationonaquarterly basisandwereanalyzedbygammarayspectroscopy.

Resultsarepresented inTableB-2.Beryllium-7, whichisproducedcontinuously intheupperatmosphere bycosmicradiation, wasmeasuredinallfortysamples.Theaverageconcentration forthecontrollocations was0.128pCi/m~andthevaluesrangedfrom0.088to0.154pCi/m~.Theaverageconcentration fortheindicator locations was0.139pCi/m~witharangeof0.075to0.195pCi/m.Thesevaluesaretypicalofberyllium-7 measuredatvariouslocations throughout theUnitedStates.Naturally occurring potassium-40 wasmeasuredinsevenofthetwenty-four indicator quarterly composites withanaverageconcentration of0.005pCi/m~andarangeof0.004to0.009pCi/m~.Potassium-40 wasmeasuredinfourofthesixteencontrolquarterly composites withaconcentration of0.004pCi/m~andarangeof0.003to0.004pCi/m~.Noothergammaemittingradioactivity wasdetected.

BAirborneiodineAirborneiodinesamplesarecollected withanoillesspumpatapproximately 56LPMusingacharcoalfiltercartridge.

Charcoalcartridges areinstalled downstream oftheparticulate filtersandareusedtocollectairborneradioiodine.

Theresultsoftheweeklyanalysis18

ofthecharcoalcartridges arepresented inTable8-3.Allresultswerebelowthelowerlevelofdetection of0.07pCi/mwithnopositiveactivitydetected.

C.DirectRadiation

-Thermoluminescent Dosimeters Thermoluminescent dosimeters (TLDs)measureexternalradiation exposurefromseveralsourcesincluding naturally occurring radionuclides intheairandsoil,radiation fromcosmicorigin,falloutfromatomicweaponstesting,potential radioactive airbornereleasesfromthepowerstationanddirectradiation fromthepowerstation.TheTLDsrecordexposurefromallofthesepotential sources.TheTLDsaredeployedquarterly at27locations intheenvironssurrounding theD.C.CookNuclearPlant.Theaveragevalueofthefourareasofeachdosimeter (calibrated individually aftereachfieldexposureperiodforresponsetoaknownexposureandfortransitexposure) arepresented inTableB-4.Thoseexposureratesarequitetypicalofobservedra'tesatmanyotherlocations inthecountry.Theaverageannualmeasurement, forthecontrolsampleswas4.34mR/standard monthwitharangeof3.0to6,6mR/standard month.Theannualaccumulation ofindicator sampleshadameasurement of4.17mR/standard monthwitharangeof2.8to6.6mR/standard month.The1996annualaverageintheenvironsoftheDonaldC.CookNuclearPlantisatthelowrangeoftheexposurerat~~(1.0to2.0mR/week)measuredduringthepreoperational period.Theresultsoftheindicator andcontrolTLDsareingoodagreement andareplottedinTrendingGraph2.D.SurfaceWaterA125milliliter surfacewatersampleiscollected fromtheintakeforebayandfromtwoshoreline locations, allwithin0.3mileofthetworeactorsandwerecomposited dailyoveramonthlyperiod.Thethirtysampleswereanalyzedforiodine-131 bytheradiochemical technique described onpage73.Allresultswerelessthanthelowerlimitofdetection of1pCi/l.'I'hequarterly composite wasanalyzedfor19 J

TrendingGraph-2DIRECTRADIATION

-QUARTERLY TLDRESULTSri/r/001/9007/9001$107$11$27/921/937$31/947/941/957/951/967/96TLDControlsTLDIndicators

tritiumbyliquidscintillation methoddescribed onpage70.Resultsarepresented inTableB-5.Tritiumwasdetectedin2ofthe10samplesanalyzedwithanaverageconcentration of520pCi/liter andarangeof130to910pCi/liter.

Thisisslightlyhigherthanthe3measurements in1995whichhadanaverageconcentration of310pCi/liter.

Duringthepreoperational periodtritiumwasmeasuredinsurfacewatersamplesatconcentrations ofapproximately 400pCi/liter.

Naturally occurring potassium-40 andcesium-137 werenotmeasuredduring1996.Naturally occurring gammaemittingisotopesweredetectedusinggammarayspectroscopy.

E.Groundwater Watersamplesarecollected quarterly fromfourteenwells,allwithin4300feetofthereactors.

First,astaticwaterelevation isdetermined andthreewellborevolumesarepurgedfromthewellusingagroundwater pump,orequivalent.

Atwolitersampleisthenobtained.

Thesamplesareanalyzedforgammaemittersandtritium.Theresultsarepresented inTableB-6.Naturally occurring potassium-40 wasnotmeasuredduring1996norwerethereanyothergammaemittingisotopesmeasured.

Thegroundwater wellsW-4,W-5,W-6.W-7.W-9.W-11,W-13andW-14hadmeasurable tritiumactivitythroughout 1996.Tritiumwasmeasuredin21ofthe56samplesattheloca,onswithanaverageconcentration of1659pCi/liter andarangeof210to14000pCi/liter.

Theannualconcentrations oftritiuminwellsW-lthroughW-7areplottedinTrendingGraph3.Anadditional sixwellswereaddedtotheprogramduring1992andonewellin1993.Theresultsareplottedquarterly for1996inTrendingGraph3.Tritiumconcentration ingroundwater wellsduringthepreoperational periodtypically averaged400pCi/liter.

21

TrendingGraph-3TRITIUMINGROUNDWATER 198019821984198619881990199219944/9510/954/9610/96

TrendingGraph-3(Cont.)TRITIUViINGROUNDWATER 100008000!CL0M06000CII0)0CLCMC40002000198019821984198619881990199219944/9510/954/9610/96Well-4W:II-5Well-6Well-7

TrendingGraph-3(Cont.)TRITIUMINGROUNDWATER

'l6000(6CLOCLO00VOIUCL0)120008000400001/921/93'/941/951/96Well14addedtotheprogramin1993.Nosamplecollected January1994.Well8~Well9MWell10~Well11MWell12MWell13~Well14 Dailysamplesarecollected attheintakeofthepurification plantsforSt.JosephandLakeTownship.

The500mldailysamplesateachlocationarecomposited andanalyzedforgrossbeta,iodine-131, andgammaemitters.

Onaquarterly basisthedailysamplesarecomposited andanalyzedfortritium.TheresultsofanalysesofdrinkingwatersamplesareshowninTable3-7.Grossbetaactivitywasmeasuredinalltwenty-six samplesfromtheLakeTownshipintakewithanaverageconcentration of3.41pCi/liter andarangefrom2.1to5.1pCi/liter.

Grossbetaactivitywasmeasuredinalltwenty-six samplesfromtheSt.Josephintakewithanaverageconcentration of3.35pCi/liter andarangefrom1.8to5.7pCi/liter.

Nogammaemittingisotopesoriodine-131 weredetected.

Tritiumwasnotmeasuredinanyofthefoursamplesfromeitherlocation.

Tritium(orLLDvalues)indrinkingwaterareplottedinTrendingGraph4.Therewerenodrinkingwateranalysesperformed inthepreoperational program.G.~edimeniS.dtmentsamplesarecnllected semiannually alongtheshoreline ofLakeMichiganatthesametwolocations asthesurfacewatersamples.Twolitersoflakesedimentarecollected usingasmalldredgeinanareacoveredparttimebywaveaction.Thesedimentsamplesareanalyzedbygammarayspectroscopy, theresultsofwhichareshowninTableB-8.InAprilandOctoberonesamplewascollected fromlocationSL-2andSL-3.Gammarayspectroscop deetectednaturally occurring potassium-40 inallfoursamples.Therayspecroscopyaveragepotassium-40 concentration was4695pCi/kg(dryweight)witharangefrom3420to6510pCi/kg(dryweight).Thorium-228, alsonaturally occurring wasmeasuredinallsampleswithanaverageconcentration of443pCi/kg(dryweight)witharangefrom91.8to846pCi/kg(dryweight).Radium-226 wasmeasuredintwosamples25 TrendingGraph-4TRITIUMINDRINKINGWATER2000CL15000CLO0OO1000L5000a4"44p)+<<+r.<<~.<<~.<<~.<<~.<<~<<.~<<.+<<

<<~'"qy'<<<<~<<<<<<t"'~,

~'i'01/8907/8901/9007/9001/9110/914/9210/924/9310/934/9410/944/9510/954/9610/96~~~~"4~~~~~LakeTownshipSt.Joseph

withanaverageactivityof667pCi/kgandarangeof440to894pCi/kg(dryweight).Allothergammaemitterswerebelowthelowerlimitsofdetection.

H.MilkDuring1996.therequirements oftwosamplesfromdifferent locations couldnotbemet.Thesamplingoffoodsampleswasincreased tooffsetthemilk.Broadleaf VeetationBroadleaf vegetation wascollected inlieuofmilkduring1996.Thirtyonesampleswerecollected andresultsarepresented inTableB-10.Naturally occurring potassium-40 wasmeasuredinallsampleswithanaverageconcentration of4018pCi/kg(wetweight)andarangeof2220to6740pCi/kg(wetweight).Cosmogenically producedberyllium-7 wasmeasuredinallsampleswithanaverageconcentration of1275pCi/kg(wetweight)andarangeof324to4460pCi/kg(wetweight).Cesium-137 wasmeasuredinsevensamples.withanaverageconcentration of87.4pCi/kg(wetweight)andarangeof27.3to298pCi/kg(wetweight).J.FishUsinggillnetsinapproximately twentyfeetofwaterinLakeMichigan, 4.5poundsoffisharecollected 2timesperyearfromeachoffourlocations.

Thesampleswerethenanalyzedbygammarayspectroscopy.

Resultsarepresented inTableB-11.Naturally occurring potassium-40 wasmeasuredinallsampleswithanaverageconcentration of3463pCi/kg(wetweight)andarangeof2810to4200pCi/kg(wetweight).Cesium-137 wasmeasuredinfiveofthesevenfishsampleswithanaverageconcentration of50.8pCi/kg(wetweight)andarangeof28.7to72.0pCi/kg(wetweight).27 K.FoodProductsFoodsamplesarecollected annuallyatharvest,asnearthesiteboundaryaspossible, andapproximately twentymilesfromtheplant.Eachsampleconsistsof3poundsofgrapesand3poundsofbroadleaves.

Therewerefourfoodsamplescollected during1996andresultsarepresented inTableB-12.Naturally occurring potassium-40 wasmeasuredinallfoursampleswithanaverageconcentration of2163pCi/kg(wetweight)andarangeof1630to2650pCi/kg(wetweight).Cosmogenically producedberyllium-7 wasmeasuredinthreeofthefoursampleswithanaverageconcentration of1583pCi/kg(wetweight)andarangeof58.6to3280pCi/kg(wet-weight).

Allothergammaemitterswerebelowthelowerlimitsofdetection.

28 IV.CONCLUSIONS 29

IV.CONCLUSIONS Theresultsofthe1996Radiological Environmental Monitoring ProgramfortheDonaldC.,CookNuclearPlanthavebe.npresented.

Theresultswereasexpectedfornormalenvironmental samples.Naturally occurring radioactivity wasobservedinsamplemediaintheexpectedactivityranges.JOccasional samplesofafewmediashowedthepresenceofman-madeisotopes.

Thesehavebeendiscussed individually inthetext.Observedactivities wereatverylowconcentrations andhadnosignificant doseconsequence.

Specificexamplesofsamplemediawithpositiveanalysisresultsarediscussed below.Airparticulate grossbetaconcentrations ofalltheindicator locations for1996appeartofollowthegrossbetaconcentrations atthecontrollocations.

Theconcentration levelsareactuallylowerthanduringthepreoperational period.Gammaisotopicanalysisoftheparticulate samplesidentified thegammaemittingisotopesasnaturalproducts(beryllium-7 andpotassium-40).

Noman-madeactivitywasfoundintheparticulate mediaduring1996.Noiodine-131 wasdetectedincharcoalfiltersin1996.Thermoluminescent dosimeters (TLDs)measureexternalgammaradiation fromnaturally occurring radionuclides intheairandsoil,radiation fromcosmi~~riginandfalloutfromatmospheric nuclearweaponstesting,andradioactive airbornereleasesanddirectradiation fromthepowerplant.TheaverageannualTLDresultswereatnormalbackground exposurelevels.Surfacewatersamplesarecollected dailyfromtheintakeforebayandtwolocations inLakeMichigan.

Thesamplesareanalyzedquarterly fortritium.andmonthlyforgammaemittingisotopes.

Nogammaemittersweredetectedduring1996.Tritiumwasmeasuredandtheconcentrations wereatnormalbackground levels.Groundwater sampleswerecollected quarterly atfourteenwells,allwithin4300feetofthereactors.

Thethreewellswithin-500feethadmeasurable tritiumwhichisattributed totheoperation oftheplant.Thehighestconcentration measuredin1996was14000pCi/liter whilethe30 0

highestconcentration measuredduring1995was7000pCi/liter.

Theincreased tritiumconcentration isattributed todrainingportionsoftheComponent CoolingWater(CCW)systemtotheturbineroomsumpwhichdischarges intotheonsiteabsorption pond.WellW-14isadjacenttothepondandmonitorstheaquiferatthislocation.

Potassium-40, anaturally occurring nuclidewasnotobservedduring1996.Noothergammaemittingisotopesweredetected.

Samplesare'collected dailyattheintakesofthedrinkingpurification plantsforSt.JosephandLakeTownship.

Samplescomposited dailyoveratwoweekperiodareanalyzedforiodine-131, grossbeta,andmeasuredforgammaemittingisotopes.

Samplesarealsoanalyzedquarterly fortritium.Noiodine-131 orgammaemittingisotopesweredetected.

Grossbetawasmeasuredinallfifty-two samplesatnormalbackground concentrations.

Tritiumwasnotmeasuredinanyoftheeightquarterly composite samplescollected during1996.Sedimentsamplescanbeasensitive indicator ofdischarges from-nuclearpowerstations.

Sedimentsamplesarecollected semiannually alongtheshoreline ofLakeMichiganattwolocations incloseproximity ofthereactors.

Thesampleswereanalyzedbygammarayspectroscopy andonlynaturally occurring gammaemittersweredetected.

Thereisnoevidenceofstationdischarges affecting LakeMichigan, eitherinthesediments orinthewater.aspreviously discussed.

Milksampleswerenotanalyzedduring1996duetolackofparticipants intheprogram.Broadleaf samplingwasperformed inlieuofmilkcollection in1996.Cesium-137 wasmeasuredin7of31broadleaf samples.Noothergammaemittingisotopesweremeasuredinbroadleaf samplesin1996.Fishsamplescollected inLakeMichiganinthevicinityofthenuclearplant.wereanalyzedbygammarayspectroscopy.

Theonlygammaemittingisotopemeasuredwascesium-137 whichwasfoundinlowconcentrations infivesamples.31 Foodproducts, consisting ofgrapes,andbroadleaf vegetation werecollected andanalyzedbygammarayspectroscopy.

Nogammaemittingisotopesweremeasuredduring1996The-results oftheanalyseshavebeenpresented.

BasedontheevidenceoftheRadiological Environmental Monitoring ProgramtheDonaldC.CookNuclearPlantisoperating withinregulatory limits.Tritiuminsevenon-sitewellsappearstobetheonlyradionuclide whichcanbedirectlycorrelated withtheplant.Howevertheassociated groundwater doesnotprovideadirectdosepathwaytoman.32 V.REFERENCES 33

V.FMFERENCES l.DataTablesfrom1985-1988 CEP-AEPSC AnnualRadiological Environmental Monitoring ProgramReports.2.EberlineInstrument Company.IndianaMichiganPowerCompany,"D.C.CookNuclearPlantRadiological Environme'ntal Monitoring Program-1974AnnualReport",May1975.3.AmericanElectricPower,12PMP6010OSD.001,OffsiteDoseCalculation Manual.4.UnitedStatesNuclearRegulatory Commission, Regulatory Guide4.8"Environmental Technical Specifications forNuclearPowerPlants",December1975.5.UnitedStatesNuclearRegulato~

Commission, Regulatory Guide1.21"Measuring, Evaluating.

andReporting Radioactivity inSolidWastesandReleasesofRadioactive Materials inLiquidandGaseousEffluents fromLight-Water-Cooled NuclearPowerPlants,April1974.6.UnitedStatesNuclearRegulatory Commission, Regulatory Guide1.4"Programs forMonitoring Radioactivity intheEnilronsofNuclearPowerPlants",April1975.7.USNRCBranchTechnical

Position, "Acceptable Radiological Environmental Monitoring Program",

Rev.1,November1979.34 APPENDIXARADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAMSUMMARY35 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAMSUMMARYINDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTDOCKETNO.50-3I5/50-31,6 I!El<RIENCOUNlYJANUAI<YItoDECEMBER31.1996MEDIUMORPATIIWAYSAMPLF.DtUNITOFMEASUREMENTI ANAY.ANDTOTALNUMIIEROFANALYSESPERFORMED

.IFANIa/I>I.IANGEIWITIIINNAMEMEANDISTANCEANDD)RECTION RANGENUMI3EROFCOlrfROLLOCATIONNONROUTINE MEANREPORI'ED RANGEMEASUREMENTS AlrIodlnc(pCI/rrI3)1-131525-(0/:3I:I)-(0/213)AirborneParticulates (IE.03pCI/nr3)Grossficta524(Weekly)19.13(313/313)

ONS-IOrrslle1945ft.20.9(53/53) 19.7(212/212)

(7.2-36)(8.6-36)(7.0-33)GammaBc-740139(24/24)

(74.7-195)QNS.6Onslte1917ft.152(4/4),'104-195)128(16/16)

(88.3-I54)K-40405.0.9(7/24)

('3.95-9.39)ONS-2-Onsllc2338ft.7.06(2/4)

(4.72-9.39)-

3.84(4/16)

(2.91-4.47)

DirectRadlatlon (mR/StandardMonth)Gamma109Doseguarterly 4.17(92/92)

(2.8-6.6)

SBN26.2rnlSE5.15(4/4)

(4.5-6.6) 4.34(16/16)(3.0-6.6!

(a/b)Rauoofsampleswithdetectable actlvltytototalnumberofsamplesanalyzed.

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAMSUMMARYINDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTDOCKETNO.50-315/50-3I6 IIErelelEN COUVnJANUARYIIoDECEMBER31.1996MEDIUMORPATHWAYSAMPLEDIUNITOFMEASUREMENTI AA.ATOTALNUMIIEROFANALYSESPERFORMED MMNIa/hlRANGI'.wINNAMEMEANDISTANCEANDDIRECIlON RANGENUMBEROfCOmROLLOCATIONNONROUTINE MEANREPORTEDRANGEMEASUREMEIfl'S SurfaceWater(pCI/Ilier)

Gamma30/:10)N/A(0/0)11-310520(2/10)

(130-910)

SWL-1l>>take910(I/4)-(0/0)Groundwater (pCI/1lter)GamnIa56K-4056H-356Th-22856.(0/56)-(0/56)1659(21/56)

(210-14000)

N/AN/A-(0/0)-(0/0)Well141780ft.5410(4/4)-(0/0)(340-14000)

DrinkingWaterGrossBeta52(pCI/liter) 3.35(52/52)

(1.8-5.7)

LTW0.4mlS3.41(26/26)(2.1-5.1)

-(0/0)1-13152-(0/52)N/AN/A-(0/0)Gamma52H-3-(0/52)-(0/8)N/AN/AN/AN/A-(0/0)-(0/0)(a/b)Rauoofsampleswithdetectable activitytototalnumberofsamplesanalyzed.

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAMSUMMARYINDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTDOCKETNO.50-315/50-316 IIEl<BIEN('OtINIYJANUARYIloDECEMBER31.1996,MEDIUMORPATIIWAYSAMPLEDIUNITOFMEASUREMFNll ANAATOTAl.NUMIIEH OFANALYSESPERFORMED

)'hIFANI>/4)RANGEwANNAMEMEANDISTANCEANDDIRECTION RANGENUMBEROFCONTROLLOCATIONNONROUTINE MEANREPORTEDRANGEhlEASUREMENTS Sediment(pCI/kgdry)Gamma4K-404Cs-1374Ra-2264Th-22844!165(4/4l(3420-6510)

-(0/4)667(2/4)(440-894) 443(4/4)(91.8-846)

SI.-20.3n>lSN/ASL-20.3mlSSL-30.2mlN5000(2/2)

(3490-6510) 894(1/2)479(2/2)(I12-846)-(0/0)-(0/0)-(0/0)-(0/0)Broadleaf/

Vegetation (pCI/kgwet)Be-731Gamma311275(31/31)

(324-4460)Various1275(31/31)

(324-4460)

-(0/0)K-40Cs-13731314018(31/31)

(1206-241 I)87.4(7/31)

(27.3-298)

VariousVarious87.4(7/31)

(27.3-298)

-(0/0)4018(31/31)

-(0/0)(1206-24II)(a/b)Ratioofsampleswithdetectable activitytototalnumberofsamplesanalyzed.

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAMSUMMARYINDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTDOCKETNO.50-3/5/50-3I6 13ERRIENCOUNIYJANUARY1toDECEMBER31,1996ANAAMEDIUMORPATIIWAYTOTALNUMBF.RSAMPLEDOFANALYSFSIUNIToFMEAsUREMEIr11 PERFQRMED

)'MEANIa/IIIRANGEWIFANNAMEMEANDISTANCF.

ANDDIRECTION RANGENUMBEROFCOBOLLOCATIONNONROUTINE MEANREPORIEDRANGEMEASUREMENTS Fish(pCI/kgwet)GammaK-40:116:3(7/7)

(2810-1200)ONS-NorIh5.0nilS3780(2/2)

(3360-4200)

-(0/0)Cs-13750.8(5/7)

(28.7-72.0)

ONS-South 5.0mlS58.2(2/2)(51.8-64.6)

-(0/0)Food/Vegetation Gamnla(pCI/kgwet)Be-71583(3/4)

(58.6-3280)ONS-V3280(1/1)

-(0/0)K-402163(4/4)

(1630-2650)

OFS-V2650(1/I)-(0/0)Cs-137-(0/4)-(0/4)-(0/0)(a/b)Ratioofsampleswithdetectable actlvltytototalnumberofsamplesanalyzed.

APPENDIXBDATATABLES40

TABLEB.1INDIANhMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTRATIONS OI'ACROSS I)l".I'AEM)II'ERSINWEEI<LYAIRI3ORNE PART]CULATES Rc>>nil>>lnUnllsnf10"pCI/nPi-2sign>aSTATIONCODESCOLLECTION ONS-1ONS-2ONS-3ONS-4ONS-5ONS-6NBFDATESSBNDOWAvera)i28.0)/08/9601/12/960)/18/9601/24/9601/31/9629i236i426i32)i219i225i228i323i317i220i228+226i326i318i220i229+228+424i320i223i227+232+428+319i219i226i230i427+319i220+226i227i426+320i222i229+226+427i3(a)22i230+333+423+323i320i227+227i324+318+219+228i29i25+19*20iQ~BRUAQY02/07/9624i224i202/14/962)i220i202/21/9617i2'6i202/28/9621i219i226i227i223i223i221i216i219i217i2)7i219i215i216i220i216+217i216i217i220i216i220i227i219i219i218i223i215i216i2)5i226i217i217+218i224i18i~17i~18i~'ARCH03/06/9603/13/9603/20/9603/27/9624i225i220i226i222i222i220i2(b)(b)21i222i224i221i216i228i322i223i228i319i218i22)i219i228i2)9i217i221i220i225i222+223i220+22)i221i219i221i220i219i217i222i221+221i:23i'0ii22iQuarterAvg.

24k1021%721i922i923i102241022i623i922ill21i822iIa)Galewind;sampleblownandnotavailable.

Ib)Poweroff.Samplenotavailable.

TABLEB-I(Cont,)INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTRATIONS OFGROSSIIl".IhEMI'II'ERSINWEEKLYAIRBORNEPARTICULATES t<<sn))slnUn)Isof10~pCI/nP+2s)ginaSTATIONCODESCOLLECTION ONS-1ONS-2ONS-3'3NS-4ONS-5ONS-6NBFDATESSBNDOW-Avcragi2s.d0)/0:)/'.)6 04/10/9604/17/9604/24/9605/0)/9624t222l222t217t218i222i218i319+215i216i220k216i2IGi217i2)5i223i2)8i219i217i215i220i2)6i2IG+216i215i218i2)3i215t213+214i223i215i2IGi216i2)4+220i216k217i213i215i22li214+216+216i214*221i215+216i216i214i221i16%517i4)6*315i305/08/9605/15/9605/22/9605/29/9619i215i216t218i2I15i215i215i216i215i217i215i214i216i216i215i216i212i214i213i212i212i214i212t214i2'5i216i214i215i215i2)5i216i217i213i214i214i215i215t275iI815i213+2IGi313i315i214i6~JNE06/05/9606/12/9606/19/9606/26/9614i212i2ll+2Il+212i2)2i213i28.6i1.77.4i1.67.8i1.58.3i1.67.2i1.57.5i1.67.4i1.616i214i214i215i215i212i225+212i210i29.9i1.712i2-12i211+216i213i213i213i212i28.8i1.87.9i1.67.2i1.67.8i1.14i214+213i215i713i213i213i212i4QuartetlyAvg.

17i815i714iG15i714i613t516i914i714i614+614+7 TABLEB-1ICo~u.)INDIANAMICHIOANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTRATIONS OVGROSSIIETAEMIVI'ERS INWEEKLYAIRBORNEPARTICULATES IlrsnltsInUnitsof10~pCI/nPi2sigmaSTATIONCODESCOLLECTION ONS-1ONS-2ONS-3ONS-4ONS-5ONS-6NBFDATESSBNDOWAve@22k07/03/9607/10/9607/17/9607/24/9607/31/9623i219i221i215i216i222+221i221i220i217i216i219i222i217i216i214i214i218i213i218i222i226t2ISi2.7.0i1.519i219i216i218i221i220i221i219i217i215i213i22lt214i220i215i214i222i2IS+218i216i217%222i17i19i15i17*~V/ST08/07/9608/14/9608/21/9608/28/9618i2(a)23i226i217i220i225t223i217i2I7i219i218i214i216i2ISi219i219*222i223i223t220i224i224i223i219i2ISi224i224i221i218i224i222i220i217i225i222i220i219i18i218i23i223i25i223iPEP'~EM~BE 09/04/9609/11/9609/18/9609/25/9610/02/9633i333i312i223i223i232i334i39.2i1.624i222i226i225i27.8i1.420i218t232i235i229i230i233i232i233i234t233i232i29.7t1.511i29.6i1.5IIi29.6i1.524i226i225i219i227i221i225t222i222i220i229i232i231i30i230i232i9.9i1.59.7i1.510i23t222i223i23i220i222i~~Avg.22*1322i1318i1021i1221i1421i1221i142li1320i122liIl2lila)PumpolI.Samplenotcollected.

TABLEB-1I('ont.)INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCEYflMTIONS OFGI(OSSIll.".IAEMIIfEltSINiVFENLYAIRBORNEPARI'ICULATES Itcsnltslt>Ut>ltsof10"PCI/ni"i2sigmaSTATIONCODESCOLLECTION ONS-1ONS-2ONS-3ONS-4ONS.6ONS.6NBFDATESSBNDOWAveragi2s.dIP/Pg/9617i214iI)3i210/16/9622i227i323i210/23/9620i234i7(a)17i2)0/30/9623i220i219i2NOVEMBER13i225i219i223i216i226i218i221i217i225i218i222+217i224i221i221+221+226i.221i219+217i226i220i224+216i226+220+221+216ie25i21iI21i311/06/9623i11/13/9614i11/20/9619i11/27/9613i12/04/9627iDECEMBER223i228.5i1.6221i2212i2224i221i213i223i2lli223i223k216i223i216i230i218i2(a)20i312i224i223+2(a)22i215i230+2<10(a)16i222i213i225i220i213i224i214i224+221k212i220i215i225i221i216i223i215k229i221i414i522i314i326i512/11/9619i220i212/18/9623i223i212/23/9626i328i312/30/9626i225i220i221i226i324i225i227i229i328i221i224i224i327i226i226+228i328+325i225i229+327i221i227i227i323i223i225i229i326i225i224i229i325i226i525i428i326i322k1022i9AnnualAvg.

21ill20i1218i1020+1120i1220i1220ill20i12.20ill20i11QuarterAvg.

21i922i1420i923ill21i923i922i1022i922i120i1(a)Lowsamplevolume.(blNopower:blownfuse.Samplenotcollected.

TABLEB-2INDIANAMICHICANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTIIATIONS Of'hhlhlA I'.Mllf'flftS'N QUAftTEltI.Y COMPOSITES OFAIRBORNEPARTICULATES ftesnltslnUnitsofIO3pCI/nPi2sigmaStauonsNucudesFfrstQuarter01/01/9604/03/96 SecondQuarter04/03/9607/03/96 ThirdQuartertrr/03/96-10/02/96 FourthQuarter10/02/96-12/30/96 Averagei2s.d.ONS-If3e-7K-40Cs-134CG.137176i18<6<0.3<0.21~).'IJ154.:13i2.03<0.3<0.2159i16<5<0.3<0.293.4i9.3<5<0.3<0.3145+724.33i2.03ONS-2Bc-7K-40CB-134Cs-137139i14<4<0.2<0.2152i159.39i2.26<0.2<0.3160i16<6<0.4<0.396.4J9.64.72i2.21<0.2<0.2137i577.06A6.6ONS-3Be-7K-40Cs.134Cs-137180i183.95i2.28<0.3<0.3124i12<10<0.3<0.3114i11<7<0.2<0.274.7i7.5<7<0.3<0.3123i8.73.95A2.83ONS-4Be-7K-40Cs-134Cs-137172i17<6<0,2<0.2163i16<6<0.3<0.3147i15<4<0.3<0.395.4i9.5<10<0.3<0.3144i68ONS-5Be-7K-40Cs-134Cs-137132i13<7<0.3<0.3140i144.70i2.00<0.3<0.3146i15<5<0.2<0.2101i10<5<0.2<0.2130i404.70S2.00TypfcalLLDsarefoundInTableB-12.Allothergammaemltterswere<LLD.

OaTABLEB-2Koui.lINDIANAMICHIGANPOWERCOMPANY.-DONALDC.COOKNUCLEARPLANTCONCENTKYI'IONS OFOAMMAEMI'II'EltS'NQUARl'FRLY COMPOSITES OFAIRBORNEPARTICULATES Rcsnlls.InUnllsof103pCI/m3t2sigmaNuclldesFirstQuarter01/01/96O4/03/96 SecondQuarter04/03/9607/03/96 ThirdQuarter07/03/96.10/02/96 FourthQuarter10/02/96-12/30/96AverageX2s.d.ONS-6flc-7K-40CB-134CR-137195X194.39i1.98<0.3<0.3165t16<5<0.2<0.2144+14<4<0.2<0.21042104.14j1.55<0.2<0.2152+764.27+0.4Be-7K-40Cs-134Cs-137153i15<5<0.3<0.3105i112.91k1.48<0.2<0.2127+13<10<0.4<0.3116X12<5<0.3<0.3125+412.912I48SBNBc7K-40Cs-134Cs-137154f153.5121.69<0.2<0.2148i15<4<0.3<0.2115i12<6<0.2<0.2101k10<5<0.2<0.2130k513.51k1.69Be-7K-40Cs-134Cs-137146X15<8<0.3<0.3136i14<4<0.2<0.2152+15<6<0.3<0.397.829.8<6<0.3<0.3133A49Be-7K-40Cs-134Cs-137154215<4<0.2<0.2133k134.47R2.38<0.3<0.31220124.4622.43<0.3<0.388.328.8<7<0.2<0.2124A554.47k0.0TyptcalLLDsarefoundhiTableB-12.Allothergammaem'ltters were<LLO.

TABLEB-3INDIANAMICH)GANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTRATIONS OVIOI)INE-131 INWEEKLYAIRCARTRIDGE SAMPI.ESRcsilltslilUr>llsof10~pCI/mai2sigmaCOLLECT1ON ONS-1ONS-2ONS-3ONS-4DATESSTATIONCODESONS-5ONS-6SBNDOW01/08/9601/12/9601/18/9601/24/9601/31/96<20<20<10<10<10<10<20<10<10<10<20<30<10<10<10<20<30<10<10<10<7<10<7<10<810<20<10<10<20<20<30<10<20<20<10<30<10<20<20<20<30<10<20<20<9<10<8<10<10FEBRUARY02/07/9602/14/9602/21/9602/28/96<9<7<9<7<8<7<8<7<9<7<8<7<9<7<9<7<6<5<6<5<9<10<10<10<10<1010<10<10<10<10<10<9<10<10<10<6<7<8<8MARCH03/06/9603/13/9603/20/9603/27/96<7<10<10<10<7<7<10<10<10<10<10<10<7<10<10<10ta)<8<6<6(a)<9<6<10<7<7<7<10<8<7<7<10<7<7<7<8<5<5<5Ia)Powerolf;samplenotavailable.

TABLEB-3Icotn.)INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCQNCI:NTI&TIONS Ol'OI)INE-131 INWFFKLYAIRCARTRIDGE SAMPLESRtsttitslttUttllsof10~pCI/nPi2sigmaCOLLECTION ONS-IONS.2ONS-3ONS.4DATESSTATIONCOI)ESONS-5ONS.6SBNDOW04/03/9604/10/9604/17/9604/24/9605/01/96(20(20(10(10(10(20<<30<10<10(10(20(20<1010(10(20(2010<10<IO<9<9<6<6<6(20<20<7<6<6<20(20(8<7<8<20<20<8<7<8(20(20<7<7<8(10<10<5<5(505!08/9605/15/9605/22/9605/29/96<10<In(10<10<9<10(10(10(8(10(10(10<9<10<1010<6<6<8<9<10<7(10<10<10<8<10<10<10<8<10<10<10<8*(10<10<6<5<6<8JUNE06/05/9606/12/9606/19/9606/26/96(10<10<10<10<10<10<10(20<8(10(10(10<10<10(10(20<7<6<6<10<10<8<8(20<10<8<8<20<10<8<8(20<10<7<7(20<6<5<5<10 TABLEB-3Icom.IINDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENlIIATIONSOlIODINE-13 IINWEEKLYAIRCARTR!DGE SAMPLESResultsI>>UnttsofIG~pCI/>>P+2sigma=COLLECTION ONS-IONS-2ONS-3ONS-4DATESSTATIONCODESONS-5ONS-6SBNDOW88Z07/03/9607/10/9607/17/9607/24/9607/31/96(20<10<10<6<9<20<10<10<6<9(20<10<10<6<8<20<10<10<6<9<9<7<6<5<6<10<8<10<10<10<10<8<10<10<10<10<7<10<9<10<10<8<10<10<10<8<5<9<7<10AUGIG8T08/07/9608/14/9608/21/9608/28/96<10Ia)<10<10<10<8<10<1010<8<10<10<10<8<10<10<8<6<6<6<9<10<7<7<9<10<8<7<7<10<7<7<9<10<8<7<6<6<5<5SEPTEMBER 09/04/9609/11/9609/18/9609/25/9610/02/96<10<6<10<10<10<10<6<10<10<10<10<5<10<10<10<10<5<10<10<10<6<4<6<6<6<7<9<7<7<7<7<10<7<7<7<7<10<7<7<9<7<10<7<7<7<5<7<5<5<7(a)Pumpoff.Samplenotcollected.

0 TABLEB-3((:mu.)INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONC('.NTRATIC)NS Ol'OI)INI'.

~I:31INWFEKI.YAIRCARTRIDGE SAMPLESRcsnltsliiUnitsnf10"PCI/ni"i2sign>aCOLLECTION ONS-1DATESON8-2ON8-3ONS-4STATIONCODF.SONS-5ONS-6SBNDOW~QBE+10/09/9610/16/9610/23/9610/30/96<610<10<6<4<6<10<10<20(8)<10<6<6<5<10<10<7<4<6<10<5<9<7<6<10<10<7<7<1010<7<7<10<10<7<7<10<7<5<7<7NOVEMBER11/06/9611/13/9611/20/9611/27/9612/04/96<8<20<8<10<7<8<20<8<20<7s<7<20<8<20<7<8<20<9<10<7<6(a)<8<10<5<8(a)<9<10<10<40(a)<20<8<10<10<8<20<9<10<10<9<20<8<10<10<6<20<6<10<7D~ECEMBE12/11/9612/18/9612/23/9612/30/96<10<20<8<10<10<10<8<10<10<10<8<10<10<10<8<10<6<7<6<5<10<8<8<7<10<9<8<6<10<9<8<6<10<8<8<6<8<6<6<4Ia)Lowsamplevolume(b)Nopower,blownfuse.Samplenolcolleeled.

TABLEB.4INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTI)ll(I:CT l&I)lhl'ION MI'.ASUIIIIMENTS

-QUAIL'ERLY TLDRESULTSlb>>t)lt>>tnUnttsoftnR/stantlard monthSTATIONCODESFIRSTQUARTER01/01/96.04/02/96 SECONDQUARTER04/02/96-07/02/96 THIRDQUARTER(a)FOURTHQUARTER07/02/96-10/02/96 10/02/96-01/02/97 AVERAGE*2s.d.h-IA-2h-3h-4h-5'.6h-7A-8A-9A-10A-11A-120FS-IOFS-2OFS-30FS-4OFS-5OFS-6OFS-7OFS-8OFS-9OFS-10OFS-I1NBFSBNDOWCOLAveragei2s.d.4.1i0.34.0i0.73.3i0.34.6i1.33.8i0.73.8i0.44.0i0.43.9i0.54.0i0.93.4i0.54.1i094.3i0.43.7i0.33.6i0.33.9i0.34.1i0.44.2i0.34.8i0.44.2i0.84.7i0.34.3i0.03.8i0.44.7i0.34.4i0.64.9i0.33.9i0.33.5i0.34.1i0.84.711.9:3.6I0.5):3.:3iI.:3:3.13i0.:33.Ii0.33.3i0.43.4i0.33.9i0.3:3.6i0.43.1i0.335iOr)3.7i0.33.7iI).43.5i0.53.3i0.53.7+0.34.0i0.44.5i0.53.8i0.74.2i0.74.3+1.93.7i0.94.5i0.54.1i0.34.6i0.53.7i1.13.3i0.43.8i0.95.2i0.4r)Ii034.6i0.2r)5i045.0i0.35.0i0.35.1i0.25.Ii0.45.3i0.44.6i0.25).2i0.25.8i1.75.240.35.2i0.55.510.65.6i0.25.5i0.66.6i0.85.7i0.56.1i0.46.0i1.25.3i0.86.1i0.65.7i0.56.6i0.55.0+0.74.8i0.45.4i1.13.3i0.33.3+0.32.9i0.23.5i0.33.4+0.43.4i0.53.1i0.43.7i0.63.5i0.32.8i0.23.4i0.43.5i0.43.2i0.43.2i0.13.9i1.13.6i0.43.7i0.44.4i0.73.5i0.54.2i0.63.9i0.63.3i0.24.4i0.44.0i0.54.5i0.63.4i0.33.0+0.43.6i0.94.3+1.64.0*1.63.5i1.54.4+1.83.9+1.53.9i1.63.9+1.84.2i1.34.1+1.73.5i1.64.1i1.74.3+2.14.0i1.73.9i1.84.2i1.94.3i1.94.4i1.65.1i2.14.3i2.04.8i1.8-4.6i1.94.0i1.84.9i1.64.6+1.65.2i2.04.0+3.43.7+1.64.2i1.7Standardmonth~30.4days.la)Transitdosenotsubtracted I'romtotalsasTLDhadnotbeenptacedInshieldedTLDholder.

0 TABLEB5INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTIIATIONS OFIOI)INI'..

TltITIUMANDGAMMAEMI11'ERS'N SURFACEWATERltesttlts InU>>llsofpCI/lllcr i2sigmaSTATIONCollectIon Date1-131K-40SWII(Condenser Circ.)01/31/9602/29/9603/31/9604/30/9605/31/9606/30/9607/31/9608/31/9609/30/96IO/31/9611/30/9612/31/96<I<I<0.7<I<0.5<0.3<0.8<0.4<0.8<0.4I<0.9<80<50<70<100<70<40<50<40<50<90<50<100910k160<100<100100SWL-2(SoulhComp)01/31/9602/29/9603/31/9604/30/9605/31/9606/30/9607/31/9608/31/9609/30/9610/31/9611/30/9612/18/96(a)la)(al<I<0.5<0.4<0.8<OA<0.9<0.4<O.l<I<60<60<80<50<70<50<30<90<100<100<200130280(a)Samplenotcollected.

~IcalLLDsarefoundinTableB.]2.Allothergammaemitterswerebelow<LLD.

TABLEB-SI('ouiIINDIANAMICIIIGAN POWERCOMPANY-DONALDC.COOKNUCLEARPLANT(:ONCI:.N'I'I(ATI()NS I)I'()l)INI'..

'I'ill'I'I(JM ANI)GAMMAEMITTERS'N SURFACEWATERItcsnltslnU>>llsofpCI/littr+2sl(!nutSTATIONCollect(on Date1-131K-40SWI3(NorlltContp)01/31/9602/29/9603/31/9604/30/96.05/31/9606/30/960?/31/9608/31/9609/30/9610/31/9611/30/9612/18/96(n)ln)(n)<I<0.5<0.4<0.9<0.4<0.8<0.3I<2(b)<50<60<100<50<90<50<40100<80100100<100(alSamplenotcollected.

lb)LLDforI-13lnotmetduetothelowsamplevolumerecetved.

~VjptcatLLDsarefoundtnTableB-12.Allothergammaemttterswerebelow<LLD.

TABLE8.6lNDIANAMICHIGANPOWERCOMPANY.DONALDC.COOKNUCLEARPLANTCONC!'.NTIIATIONS Ol'IIITIUM ANI)GAMMAFMITTERS'N GROUNDWATER ltr>>tilt>>

lttUttltsofpCI(lltcr

+2sigmaSTAT!ONCouectlon Date1-131K-40WeuW-l01/26/!IG04/25/!IG07/25/!IG10/24(!)6<0.4<I(0.8<0.4<90<50<50<<60<200<200100(200WellW-201/25/9604/25/9607/25/9610/24/96<0.4<I<0.9I<50<70<70<<60<200(200(200(200WellW-301/26/9604/25/9607/25/9610/25/96<0.4I<0.8<0.4<50<<100<60<70<200(200<100(200WellW-401/30/9604/25/9607/26/9610/24/96<0.4<0.9(0.8<0.5<90(100(60<50640+14013002200130022001110k200WellW-501/30/9604/26(9607/26/9610/24/96<0.4<I<0.9<0.4<40<50<60<50320214011002200840R130810k150WellW-601/30/9604/26/9607/26/9610/24/96<0.4<1<0.7<0.3<100<80<50<70160022001100220066021208602140'ootnotes locatedatendoftable.

TABLEB.6I('own.IlNDIANhMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCON('I'.h"l ltATI()NS OI'RITIUM ANDGAMMAEMITI'ERS'N GROUNDWATER HrsnltsInUnttsofIiCI/Ittrr

+2sigmaSTATIONCollection Date1-131K-40WellW-7Ol/26/9604/25/IIG 07/25/116 10/25/96<0.4I<0.8<0.'I<100<60<60<100<2002502140<200<200WellW-S01/26/9604/25/9607/25/9610/24/96<0.4<I<0.9<0.5100<60<40<50<200<200<200<200'WellW-901/25/9604/25/96, 07/25/9610/24/96<0.4I<0.8<0.6<50<70<100<70<200260X140100<200WellW-1001/25/9604/24/9607/25/9610/24/96<0.4<II<0.5<80100<100<50<200(200<200<200WellW-1101/25/9604/24/9607/25/9610/24/96<0.4<I<0.8<0.5<50<50<50<100<20046'60<200<200WellW-1201/25/9604/24/9607/26/9610/24/96<0.4<1<0.7<0.4<50<50<50<90<200<300<200<200~Footnotes locatedatendoftable.

TABLEB6(routIINDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANT(ONC'I'.Nfl(ATI()NS

()I'IIITIUM ANDGAMMAEMITTERS'N GROUNDWATER ltriitlta It)Uttllsof1)C)/)lier 22s)gmaSTATIONWellW-13Col!ection Date01/26/960I/24/!)607/25/!)610/25/!)6I-131<0.5I<0.8<0.4K-40100<50<80<60<2003?0+I?0<200210+140WellW-1401/26/9604/25/9607/25/9610/25/96<0.5<I<0.7<0.5<90<100<90<70340k1102000k2005300+3001400021000(a)Averagei2s.d.1659j6060(o)Trtttumresultscont)rmcd byareanalysts.

'Pyptca)LLDsaretoundtnTableB.)2.AllothergammacmttterswereLLD.

TABLEB-7INDIANAMICIIIGAN PO%VRCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTRATIONS Ol'ROSSIII;"I'A.

IOI)INE.TltlTIUMANI)GAMMAEMITI'ERS'N DRINKINGlVATERHts>>ItsI>>U>>ItsofpCI/liter J2slg>>taCOLLECTlON DATELT%'ammaScIodine-131 01/17/9601/31/9602/14/9602/28/9603/13/9603/27/9604/10/9604/24/9605/08/9605/22/9606/05/9606/19/9607/03/9607/17/9607/31/9608/14/9608/28/9609/11/9609/25/9610/09/9610/23/9611/06/9C11/20/9612/04/9612/18/9612/30/964.0X1.02.8X1.03.5i0.92.6i0.93.6iI.I'.2i1.036'.13.6i1.137i1.03.6I1.03.7i1.13.2i1.04.2i1.23.6i1.02.9i1.03.7i1.05.1i1.13.7i1.23.1i0.93.0i1.03.2i0.92.5i0.93.2i1.02.1X0.93.4N1.12.9i1.1<LI.D<LI.D<LLD<LLD<LI.D<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LI.D<LLD<LI.D<LLD~<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<0.2<0.3<0.3<0.3<0.5<0.3<0.3<0.4<0.3<0.4<0.2<0.4<0.5<0.2<0.2<0.3<0.3<0.3<0.3<0.3<0.4<0.3<0.3<0.3<0.3<0.4<200<100100<100Averagei2s.d.3.4i1.2~~lealLU)satefoundIntableB.12.

TABLEB-7(Cone)INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTRATIONS OFGROSSIII".Ib.IODINE.TIZITIUMANDGAMMAEMITIERS'NDRINKINGWATERItcsnlbsInUnllsofpCI/Ilier

+2sigmaCOLLECTION DATESTJGrossBetaGammaScIodine-131 01/17/960I/31/9602/I4/9602/28/9603/13/9603/27/9604/10/9604/24/9605/08/9605/22/9606/05/9606/19/9607/03/9607/17/9607/31/9608/14/9608/28/9609/11/9609/25/9610/09/9610/23/9611/06/9611/20/9612/04/9612/18/9612/30/963.7X1.029iI.I4.4XI.I2.8X0.93.0XI.I3.7I1.05.7i1.22.3i1.04.3il.l3.4i1.026i1.03.9X1.01.8i1.13.4k1.03.8X1.13.021.03.721.02.6E1.14.121.03.921.13.521.04.1+1.13.1i1.02.0X0.93.0i1.12.5R1.1<I.LD<I.LD<LLD<LLD<LLD<LI.D<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<0.2<0.2<0.4<0.3<0.4<0.4<0.3<0.4<0.3<0.4<O.l<0.4<0.5<0.2<0.2<0.4<0.3<0.3<G.2<0.3<0.3<0.3<0.3<0.3<0.3<0.2<200<100<100100Average22s.d.3.4f1.7TypicalLLDsarefoundIntableB-12.

TABLEB.8INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANT('()N('I:.N'I'Ith'I'l()NS

()I')AMMA I'.MITI'EBS'N SEDIMENTlte.ultitntlnltsofI)CI/kpt(try)i2s)gulaStatIonCottectlon DateBe-7K-40CB-137Ra-226Th-228SL-2SL-3SL-2SL-304/16/9604/16/9610/15/9610/15/96<200-<200<200<2006510f6503420X3903490X3505360x540<20<30<20<20<400<700894X317440k23991.8+29.6846S85724k72112220Averagek2s.de4695i301466726424432795~IcalLLDsarefoundIntableB-12.Allothergammaemltterswere<LLD.

TABLEB.9INDIANAMICIIIGAN POWERCOMPANY.DONALDC.COOKNUCLEARPLANT('()N(I'.YI'I(AI'I()NS

()I'()l)INI'.

ANI)GAMMAEMITTERS'N MILKlhnitslntlnlt>>of1)CI/liter

~2stt.ntaCOLLECTION ANALYSISDATESSIAIIONCODESFREEHLINGLIVINGHOUSE Tl)erewerenomilkanalYsescomplelcd dvrinp.1996duetolackofparllclpanls tornccttl)emlnlmumrcqulrcmcnts oftheREMPprograni.

Inlieuofnttlk.I'oodandvegetation sampleswereIncreased.

0 TABLEB-10INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTItATIONS OlGAMMAEMI'Il'I'.IIS'N IIIIOhl)I.EAF VEGETATION COLLECTED INLIEUOFMILKltrsttlls lnUttllsofpCI/kg(wcl)X2s!gmaCOLLECTION DATE04/24/9604/24/9604/24/9G0I/24/9605/22/9605/22/9605/22/9G05/22/9605/24/9605/24/9605/24/9606/19/9606/19/9606/19/9606/19/9607/17/9607/17/9607/17)9607/17/9608/14/9608/14/9608/14/9608/14/9609/11/96StaUonNewBuffaloONS-IONS-2ONS-8NewBuffaloONS-IONS-2ONS-8SectorJ-20mllesSectorA-BeachSectorA-CabinSectorA-BeachSectorA-BeachSectorA-CabinLlvlnghouse FarmSectorA-BeachSectorA-ONS-ISectorA-CabinSectorJ-FarmSectorA-BeachSectorA-TrailESectorA-ONS-ISectorJ-FarmSectorJ-FarmDeserttlonIlroatllt;tf Ilro;ttlle'tf llroadlcaf Uroadlr.af 13roadlcaf Broadleaf I3roadlcaf l3roadlcaf 13roatlleaf I3roadlea fBroadlcal'roadleaf Broadleaf Broadleaf Broadleaf Broadlcal'roadleaf Broadleaf Broadleaf Broadleaf sadleafBroadleaf Broadleaf Broadleal'e-7 2790+280770i1014460i4504210i420969+126324X167404A74378i82461i86;372i107398f101995+111172021701510A150749k80628k1041220*1501830k210456+204822k106875k1111020+110828+831480+150K-404960+5003620X3605000i5004230X4204650+4603390+34046302460674026704310443049802500416024203600436049002490448024505030+500240022404090k41064902650480024803220232024302240257022604580~4604950+490I-131<20<20<20<20<10<10<1010<10<10<10<6<7<6<6<5<5<5<4<6<6<5<8<4CB-13710<10298+30<20<20<2074.6i9.7<10<1010<20<20<1041.5212.0<10<10<20<30<30<10<20<10<10<10~tealLLDsarefoundIntableB.!2.Allothergamntaemitterswere<I.LD.

TABLEB)0ttcan)INDIANAMICH)CANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONC)'.NTI(ATI()NS

()I'iAIDIAI'.%llIII'.l(S'NI)l(OAI)l.l'.AF VI'.GI".I'ATION COLLECTFD INL)EUQFM)LKI)ran)tiIttI)tt)liofIt('I/k)!

(ivct)12sl)ltttaCOLLECTION DATEStat)onDescrltlonBe-7K-401-131Cs-13709/11/l)6 09/II/9609/Il/9610/09/9610/09/9610/09/9610/09/96SectorA-I)ctc)tScclorA-E:l)carl)SectorA-Cal)tnSec)orJ-FarntScclorA-Trail)3ottndary SectorA-f)eachScclorA-TrollI)rtnNIIc:IfI)ro;ttl)t;tf l)ro;ttllc'tf

)3fondlcafBroadleaf f)roadlcaf Broadleaf I140+180553g)09758X883420+340929t1852210i.220555i134298023002220+2202390+2404870E4902330+2603230+3202340+230<4<5<4<5<4<4<542.5+19.1<2010<2070.4+22.557.6+18.427.3k15.4Average22s.d.1275R218340182241187.4R189~)ca)LLDsarefoundtntable8-)2.A))othergammaem)tterswere<<LLD.

k TABLEB-11lNDIANAMIClllGAN POWERCOMPANY-DONALDC.COOKNUCLEARPLANT('()N('I'.NTI(hl'l()NS

()I'hMMhI'.MI'fTERS'N FISIIl<<stiltsliiUiiltsofPCI/kgIwrt)t2sign)aCollection DateStationDescrltlo)Be-7K-40Cs-137Ra-226Th-228Or)/31/96 0)/JI/qGOr5/31/96 Or)/:31/96 09/10/9609/10/9609/10/9609/10/96OFS-Sfa)OFS-NONS-NONS-SOFS-NONS-NOFS.SONS-SSterlhrad/Stirkrr Long))osc SurkcrLikeTroutWallcycWalleyeBass/Wallcyc Bass/Walleye 100100100IQO<100100<100~3)10P3r)04200+4202810+2803500+3503360+3403490i3503370i340<2037.1+13.464.6i.13.1<2072.0i16.928.7k12.551.8212.3<300<300<300<300<400<300<300<20<20<20<30<40<20<30Average22s.d.3463k814'0.8236.3lalSamplenotcollected.

fyplca)LLDsarefoundtntableB-l2.AIIothergammaemitterswere<LLD.

TABLEB-12INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTCONCENTIIATIONS OFGAMMAEMIT'IEIIS'NFOOD/VEGETATION l<<snltslnUnitsolPCI/kg(v:cl)+2SIIimoCOLLECTION DATE09/18/96Of)/18/9609/18/9609/18/96StaUonSectorD-ONS-GSectorJ-OFS-GSectorD-ONS.VScclorJ-OFS-VDescrltlon(ropesGropesLcovcsLcovcsBe-758.6i31.6<503280I3301410i140K-401750i1801630k1602620X2602650R270I-131<6<6<20<10Cs-137<6<6<10<10Averagek2s.d.1583k3235216321096TyptealLLDsarefoundlntableB-l2.Allothergammaemltterswere<LLD.

TABLEB-131NDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTGAMMASl'I:.CTl<()MI.".I'ltY I.()KVI'.lt I.IMITSOl')l;I'ECTIONANDREPORTlNG LEVELSIsotoeTech8cLLDRetLevelTILLDTechSccLLDRctLevelCerium-144 Barlun)/La-140 Cesium-134 Ru.Rh-106Ccsl<)m-137Zr.Nb-95Manganese-54 Iron-59Zinc-65Cobalt-60 Cobalt-58 Iodine-131

'odlne-131 (a)601010801010101520101020WN/AN/A60N/A60N/AN/AN/A.N/AN/AN/A60N/AN/A1000N/A2000N/AN/AN/AN/AN/AN/A1003050/10750610/15515105510IWater-1literN/A60/1515N/A1830/'I51530301515IIN/A20030N/A50400100040030030010002Cerium-144 Barium/La-140 Cesium-134 Ru,Rh-1'06Ccslum-137 Zr,Nb-95Manganese-54 Iron-59Zinc-65Cobalt-60 Cobalt-58 iodine-131 Iodine-131 (a)Mttk-Clliter3050/107506205151055101N/A60/1515N/A18N/AN/AN/AN/AN/AN/AIIN/A'30060N/A70N/AN/AN/AN/AN/AN/A30.0070.0050.0020.0100.0020.0020.0020.0020.0020.0020.0020.040N/AN/A0.06N/A0.06N/AN/AN/AN/AN/AN/A0.07N/AN/A10N/A20N/AN/AN/AN/AN/AN/A0.9(a)Analysisbyradiochemistry andbasedontheassumptions lnProcedure PRO-032-11.

CharcoalTrap TABLEt3'aa~ii~INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTGAMMASlI:.<-.IIICGII.-.lleY I.I3WI:.It I.IIillsOl:Iil;-I'I:.Cl'ION ANI)REPOIGING LEVELSIsotoTlLLDTechScLLDRetLevelTILLDTechSccLLDRetLevelCrrli>>>>.34Itlarli>>>>/I a.140Ceslii>>>-134 It>>.RI>-106Crsl>>>>>.137Zr.Nb-95Ma>>gancsc 54Iron-59Zinc-65Cobalt-60 Cobalt-58Iodine-131 2002002020020402040402020100N/AN/hI:30N/h150N/h130260260130130N/AN/hN/A1000N/h2000N/h3000010000200001000030000N/A150530200304095060202030ScdlmcntSoll-IK-N/AN/A150N/A180N/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/hN/AN/AN/AGrossBeta/Trltlum LLDsandRcrtlnLevelsGrossBetaAlrParticulates DrlnklngWater0.01pCI/m30.01pCI/m32pCI/I4.0pCI/IN/AN/ASurfaceWaterGroundWaterDrinkingWater20020020020002000200020.00020.00020,000(b)Basedontheassumptions Inprocedure PRO-042-5.

APPENDIXCANALYTICAL PROCEDUIGM SYNOPSIS67 ANALYTICAL PROCEDUBZS SYNOPSISAppendixCisasynopsisoftheanalytical procedures performed during1996onsamplescollected fortheDonaldC.CookNuclearPlant'sRadiological Environmental Monitoring Program.AllanalyseshavebeenmutuallyagreeduponbyAmericanElectricPowerandTeledyneBrownEngineering andincludethoserecommended bytheUSNRCRegulatory Guide4.8,BTP,Rev.1,November1979.ANALYSISTITLEPAGEGrossBetaAnalysisofAirParticulate Samples....

GrossBetaAnalysisofWaterSamples..~~~~~~~~~~~~~~~~~~69~~~~~~~~~~~~i70AnalysisofSamplesforTritium(LiquidScintillation)....................

72AnalysisofSamplesforIodine-131 MilkorWater........'.....

~~~~~~~~~~73.73GammaSpectrometry ofSamplesMilkandWater.....

~~~~~~~~~~~~~~~74~~~~~~~~~~~74DriedSolidsotherthanSoilsandSediment.........

74FL4.1~~~~~~~~74SoilsandSediments

.............

.74CharcoalCartridges (Airiodine)~...............................

74AirborneParticulates..........................................

74Environmental Dosimetry

.~~~~~~~~~7668 GROSSBETAANALYSISOFSAMPLESAirborneParticulates Afteradelayoffiveormoredays,allowingfortheradon-222 andradon-220 (thoron)daughterproductstodecay,thefiltersarecountedinagas-flowproportional counter.Anunusedairparticulate filter,suppliedbythecustomer, iscountedastheblank.Calculations oftheresults,thetwosigmaerrorandthelowerlimitofdetection (LLD):RESULT(pCi/m3)((S/T)-(B/t))/(2.22 VE)TWOSIGMAERROR(pCi/m3)=2((S/T2)+(B/t2))1/2/(2.22 VE)LLD(pCi/m3)4.66(B/t/T)//(2.22VE)whcrc:SBETVGrosscountsofsampleincluding blankCountsofblankCountingefficiency NumberofminutessamplewascountedNumberofminutesblankwascountedSamplealiquotsize(cubicmeters)69 DETERMINATION OFGROSSBETAACTIVITYINWATERSAMPLES

1.0INTRODUCTION

Theprocedures described inthissectionareusedtomeasuretheoverallradioactivity ofwatersampleswithoutidentifying theradioactive speciespresent.Nochemicalseparation techniques areinvolved.

Oneliterofthesampleisevaporated onahotplate.Asmallervolumemaybeusedifthesamplehasasignificant saltcontent.Ifrequested bythecustomer, thesampleisfilteredthroughNo.54filterpaperbeforeevaporation, removingparticles greaterthan30micronsinsize.Aft.erevaporating toasmallvolumeinabeaker,thesampleisrinsedintoa2-inchdiameterstainless steelplanchetwhichisstampedwithaconcentric ringpatterntodistribute residueevenly.Finalevaporation todresstakesplaceunderheatlamps.Residuemassisdetermined byweighingtheplanchetbeforeandaftermountingthesample.Theplanchetiscountedforbetaactivityonanautomatic proportional counter.Resultsarecalculated usingempirical sell-absorption curveswhichallowforthechangeineffective countingemciencycausedbytheresiduemass.70

2.0 DETECTION

CAPABILITY Detection capability dependsuponthesamplevolumeactuallyrepresented ontheplanchet, thebackground andtheefficiency of.thecountinginstrument, anduponself-absorption ofbetaparticles bythemountedsample.Becausetheradioactive speciesarenotidentified, nodecaycorrections aremadeandthereportedactivityreferstothecountingtime.Theminimumdetectable level(MDL)forwatersamplesisnominally 1.6picocuries perliterforgrossbetaatthe4.66sigmalevel(1.0pCi/1atthe2.83sigmalevel),assumingthat1literofsampleisusedandthat>gramofsampleresidueismountedontheplanchet.

Thesefiguresarebaseduponacountingtimeof50minutesanduponrepresentative valuesofcountingefficiency andbackground of0.2and1.2cpm.respectively.,

TheMDLbecomessignificantly lowerasthemountweightdecreases becauseoireducedself'-absorption.

Atazeromountweight,l)>e4.66sigmaMDLforgrossbetai"0.9picocuries perliter.Thesevaluesreflectabetacountingefficiency of0.38.

ANALYSISOFSAMPLESFORTRITHJM(LiquidScintillation)

WaterTenmilliliters ofwateraremixedwith10mlofaliquidscintillation "cocktail" andthenthemixtureiscountedinanautomatic liquidscintillator.

Calculation oftheresults,thetwosigmaerrorandthelowerlimitdetection (LLD)inpCi/1:RESULT(N-B)/(2.22 VE)TWQS1GMAERROR=2((N+B)/dt)1/2/

(2.22VE)LLD4.66(B/ht)>/~/(2.22 VE)where:B2.22Vthegrosscpmofthesamplethebackground ofthedetectorincpmconversion factorchangingdpmtopCivolumeofthesampleinmlefficiency ofthedetectorcountingtimeforthesample72

ANALYSISOFSAMPLESFORIODINE-131 MilkorWaterTwolitersofsamplearefirstequilibrated withstableiodidecarrier.Abatchtreatment withanionexchangeresinisusedtoremoveiodinefromthesample.Theiodineisthenstrippedfromtheresinwithsodiumhypochlorite

solution, reducedwithhydroxylamine hydrochloride andextracted intotolueneasfreeiodine.Itisthenback-extracted asiodideintosodiumbisulr>te solutionandisprecipitated aspalladium iodide.Theprecipitate isweighedforchemicalyieldandismountedonanylonplanchetforlowlevelbetacounting.

Thechemicalyieldiscorrected bym"asuring thestableiodidecontentofthemilkorthewaterwithaspecificionelectrode.

Calculations ofresults,twosigmaerrorandthelowerlimitofdetection (LLD)inpCi/1:RESULTTWOSIGMAERRORLLDwhere:(N/dt-B)/(2.22 EVYDF)2((N/ht+B)/ht)

/(2.22EVYDF)=4.66(B/ht)

I/2/(222EVYDF)N=totalcountsfromsample(counts)ht=countingtimeforsample(min)B=background rateofcounter(cpm)2.22=dpm/pCiV=volumeorweightofsampleanalyzedY=chemicalyieldofthemountorsamplecountedDF=decayfactorfromthecollection tothecountingdateE=efficiency ofthecounterforI-131,corrected forselfabsorption effectsbytheformulaEEsEs(exp00085M)/(exp-0.0085Ms) efficiency ofthecounterdetermined froman1-131standardmountMs=massofPdl2onthestandardmount,mgmassofPdl2onthesamplemount,mg?3

GAMMASPECTROMETRY OFSAMPLESMilkandWaterA1.0literMarinelli beakerisfilledwitharepresentative aliquotofthesample.Thesampleisthencountedforapproximately 1000minuteswithashieldedGe(Li)detectorcoupledtoamini-computer-based dataacquisition systemwhichperformspulseheightanalysis.

DriedSolidsotherthanSoilsandSediments Alargequantityofthesampleisdriedatalowtemperature, lessthan100'C.Asmuchaspossible(uptothetotalsample)isloadedintoatared1-literMarinelli andweighed.Thesampleisthencountedforapproximately 1000minuteswithashieldedGe(Li)detectorcoupledtoamini-computer-baseddataacquisition systemwhichperformspulseheightanalysis.

FishAsmuchaspossible(uptothetotalsample)oftheedibleportionofthesampleisloadedintoataredMarinelli andweighed.Thesampleisthencountedforapproximately 1000minuteswithashieldedGe(Li)detectorcoupledtoamini-computer-based dataacquisition systemwhichperformspiilseheightanalysis.

nileandedimentsSoilsandsediments aredriedatalowtemperature, lessthan100'C.Thesoilorsedimentisloadedfullyintoa=tared,standard300cccontainer andweighed.Thesampleisthencountedforapproximately sixhourswithashieldedGe(Li)detectorcoupledtoamini-computer-based dataacquisition systemwhichperformspulsehe~ghtanalysis.

AirborneParticulates Thethirteenairborneparticulate filtersforaquarterly composite foreachfieldstationarealignedoneinfrontofanotherandthencountedforatleastsixhourswithashieldedGe(Li)detectorcoupledtoamini-computer-baseddataacquisition systemwhichperformspulseheightanalysis.

74

Amini-computer softwareprogramdefinespeaksbycertainchangesintheslopeofthespectrum.

Theprogramalsocomparestheenergyofeachpeakwithalibraryofpeaksforisotopeidentification andthenperformstheradioactivity calculation usingtheappropriate fractional gammarayabundance, halflife,detectorefficiency, andnetcountsinthepeakregion.Thecalculation ofresults,twosigmaerrorandthelowerlimitofdetection (LLD)inpCi/volume ofpCi/mass:

RESULTTWOSIGMAERROR(S-B)/2.22 tEVFDF)2(S+B)//(2.22tEVFDF)4.66(B)//(2.22tEVFDF)where:SArea.incounts,ofsamplepeakandbackground (regionofspectrumofinterest)

Background

area,incounts,undersamplepeak,determined byalinearinterpolation oftherepresentative backgrounds oneithersideofthepeak2.22lengthoftimeinminutesthesamplewascounteddpm/pCiDFdetectorefficiency forenergyofinterestandgeometryofsamplesamplealiquotsize(liters,cubicmeters,kilograms, orgrams)fractional gammaabundance (specific foreachemittedgamma)'ecayfactorfromthemid-collection datetothecountingdate

ENVIRONMENTAL DOSIMETRY TeledyneBrownEngineering usesaCaS04.'Dy thermoluminescent dosimeter (TLD)whichthecompanymanufactures.

Thismaterialhasahighlightoutput,negligible thermally inducedsignalloss(fading),

andnegligible selfdosing.Theenergyresponsecurve(aswellasallotherfeatures) satisfies NRCReg.Guide4.13.Transitdosesareaccounted forbyuseofseparateTLDs.Following thefieldexposureperiodtheTLDsareplacedinaTeledyneIsotopesModel8300.Onefourthoftherectangular TLDisheatedatatimeandthemeasuredlightemission(luminescence) isrecorded.

TheTLDisthenannealedandexposedtoaknownCs-137dose;eachareaisthenreadagain.Thisprovidesacalibration ofeachareaofeachTLDaftereveryfielduse.Thetransitcontrolsarereadinthesamemanner.Calculations ofresultsandthetwosigmaerrorinnetmilliRoentgen (mR):RESULTD=(D>+D2+D3+D~)/4 TWOSIGMAERROR=.2((p,-p)2+(p p)2+(D3-D)2+(D D)2)/3)1/2 WHERE:D1thenetmRofarea1oftheTLD,andsimilarly forD2,D3,andD4D>R1I1K/RI-Atheinstrument readingofthefielddoseinarea1theknownexposurebytheCs-137sourcetheinstrument readingduetotheCs-137doseonarea1averagedoseinmR,calculated insimilarmannerasabove,ofthetransitcontrolTLDsDtheaveragenetmRofall4areasoftheTLD.76

APPENDIXDSUMMARYOFEPAINTERLABORATORY COMPARISONS 77

EPAInterlaborato~

Comparison ProgramTeledyneBrownEngineering participates intheUSEPAInterlaboratory Comparison Programtothefullestextentpossible.

Thatis,weparticipate intheprogramforallradioactive isotopespreparedandatthemaximumfrequency ofavailability.

Beginning with1996theUSEPAdiscontinued providing milkandairparticulate filtersamples.Forreplacements, wehavepurchased comparable spikedsamplesfromAnalytics, Inc.Inthissection1996datasummarytablesarepresented forisotopesinthevarioussamplemediaapplicable totheDonaldC.CookNuclearPlant'sRadiological Environmental Monitoring Program.Thefootnotes ofthetablediscuss'investigations ofproblemsencountered inafewcasesandthestepstakentopreventreoccurrence.

78

~<A~T~KLAHOHATORY COMPARISON PROGRAM1996Environmental Collection DateMediaNuclideEPAResult(a)

TeledyneBrownEnineeringResult(b)

Deviation(c) 01/23/96Water01/26/96WaterSr-89Sr-90Gr-AlphaGr-Beta73.0+5.0212.1+7.025.05.05.05.073.67+5.00+19.00+7.1323.210.001.000.210.230.002.390.05(d)02/02/96Water03/08/96Water04/16/96Water1-131H-3Gr-BetaSr-89Sr-90Co-60Cs-134Cs-137Gr-AlphaRa-226Ra-22867.0+7.0166.9+43.0+16.0+31.0+46.0650.0+74.8+3.0+5.0+25.05.05.05.05.05.018.70.51.322002.0+2200.071.57+22000.00+160.00+41.33+15.33231.67242.33252.33+63.67+3.40+3.63+3.060.000.002.310.581.151.531.532.890.000.611.150.00-0.48-0.58-0.230.23-1.270.81-1.031.39-1.8206/07/96WaterCo-60Zn-65Cs-134Cs-137Ba-13399.0+300.0+79.0+197.0+745.0+5.030.05.010.075.099.00+309.33+69.67+202.00+711.00+1.732.081.532.6571.420.000.54-3.230.87-0.79(e)06/21/96WaterRa-226Ra-2284.9+9.0+0.72.35.50+9.7320.260.461.480.5507/l2/9607/l9/96OH/09/96iVatcrKV>terIVatcrSr-89Sr-90Gr-AlphaGr-Betafl-325.0+12.0k24.4+44.825.05.06.15.010879.0+1088.022.67+12.33+1.531.1522.67+0.5R45.33+2.089800.00+346.41-0.810.12-0.490.18-1.7209/27/96WaterRa-226Ra-22814.0+4.7+2.11.214.00+6.2021.000.500.002.1710/02/96Waterl0/15/96Water1-131Gr-AlphaRa-226Ra-228Gr-BetaSr-89Sr-90Co-60Cs-134Cs-137'9.129.925.1+111.8,+10.0+25.0215.0+20.0R30.0+14.81.51.316.85.05.05.05.05.027.0+6.026.33255.671+10.00+5.47+110.029.00226.002I4.'67+19.67+29.33+2.315.030.000.310.000.001.001.531~151.15-0.19-0.400.120.49-0.19-0.350.35-0.12-0.12-0.2379 zilA.LcvLELcLctlDUIcAL vlf,z4~gvu~evilIIcvtÃcLBJTI AvvoFnvixonmental Collection DateMediaNuclideEPAResult(a)

TeledyneBrownEnineerfngResult(b)

Deviation(c) 10/25/96WaterGr-AlphaGr-Beta10.3+5.034.6~5.09.03+39.67+0.72-0.440.581.7611/08/96WaterCo-60Zn-65Cs-134Cs-137Ba-13344.0+5.035.025.011.025.019.0+5.064.026.044.67+38.67212.00+20.67256.67+0.580.230.581.270.000.351.150583.21-2.12(g)12/06/96WaterRa-226Ra-22820.1+3.010.2+2.620.33+10.33+0.580.130.580.09Footnotes:

(a)(b)(c)(d)(c)fnEPAResults-Expected laboratory precision (1sigma).UnitsarepCi/liter forwaterandmilkexceptKisinmg/liter.

UnitsaretotalpClforairparUculate Alters.TclcdvneResults-Average+onesigma.UnitsarepCi/liter forwaterandmilkexceptKlsinmg/liter.

UnitsaretotalpCiforafrpartfculate filters.Normalized dcviaUonfromtheknown.Thevariation wasduetoself-absorpUon properties oftheEPAsamplematrix.OnfutureEPAwatersamplesofthistype,wewilldetermine theoverallalphacountingefficienc byspikingthcmatrixwithTh-230fnaccordance withtheirrecentadvisory.

Toverifythecauseforthedeviation.

aCs-134standardhasbeenpurchased.

IfthcCs-134cmcfcncyislowerthantheefficiency at604KeVand795KeV,thenratherthanchangethosecfficicncics (whichmaybeneededforotherisotopesofcomparable energies).

theCs-134branching intensity shallbeadjusted.

Erroneously lo~ceriumyieldswereobtainedinback-extraction fromriuEHP.Greatercaretobctakenduring~'k-extracUon.

Ifthisoperation isincomplete.

theceriumcarrieryieldbecomeslowerthantheAc-228yield.Theprocedure hadbeenrevisedtorequireadditional back-cxtractions forlongerperiodsofUmetoensurethatproperceriumcarrieryieldsareobtained.

Theprocedure isunderreviewtodetermine ifadditional back-extracUons arerequired.

(pJThccauseforthedeviaUoncouldnotbespecffically determined.

Sampleswereanalyzedintriplfcate onthreedifferenHPGedetectors providing resultswithgoodprecision (lessthanl1%deviaUon).

Thevaluescalculated bythcsoftwareforeachdiscreteenergylineofBa-133-wercalsoinagreement indicaUng anexcellent cfficicncy versusenergycaifbraUon At.Useofavalidbranching raUointhecalculaUon wasverified.

TheiniUalaliquotwasveriAedandtheCo-60,Cs-134.andCs-137valueswereinexcellent agreement withtheknown.AspecifictrendoverUmewasnotapparentinthedata,howeverthenormalized deviaUoncalculated fromtheEPAappearstodecreaseasthcknownactivityincreases.

Nocorrective actionsareanUcipated atthisUme.Futureanalyseswillbemonitored toidenUfyanypotenUaltrendtowardan"outofcontrol"condiUon.

80 ANALYTICS CROSSCHECKCOMPARISON PROGRAM1996SampleIDMediaNuclideTele'eBrownEnineeringResult(a)Analytics ResultRatio(b)E0633-396 TI¹1191203/12/96Water1-131Ce-141Cr-51Cs-134Cs-137Co-58Mn-54Fe-59Zn-65CO-6039+89K330253k65+49+37k93+100+81+59305754910836+88+322+58+64+48+31+83+97+76~2163'3224541.081.011.020.911.021.021.191.121.031.07E0635-396 MilkTI¹1191403/12/961-131Ce-141Cr-51Cs-134Cs-137Co-58Mn-54Fe-59Zn-65Co-60162240+880+150+180+140+93+250x260+220+620902020109303020132234+858+154+170+128+84+223+260+204+112438964ll13101.231.031.030.971.061.091.11l.121.001.08E0632.396 WaterTl<<1191103/12/96Sr-89Sr-9030+23+24+21+1.251.10E0634.396 Tl<<1191403/12/96E0636.396 Tl<<1191303/12/96MilkWaterSr-89Sr-90ll-330+1722800220031216+2982+1490.971.060.94E0746.396 Tl<<1922006/19/96AirFilterGrossAlphaGrossBeta37+150+310352144+1.061.04E0747-396 Tl¹1922106/19/96AirFilterCe-141Cr-51Cs-134Cs-137Co-58Mn-54Fe-59Zn-65Co-60310+910a210a690+190t140+180+30902070201020500+501200+100400+1048231027642173k2052"16389559228144%710825156+81.251.151.00l.191.211.231.321.301.1581

ANAIYTICSCROSSCHECKCOMPARISON PROGRAM1996SampleIDMediaNuclideTeledyneBrownEninecringResult(a)Analytics ResultRatio(b)E0748-396 AirFilterSr-90TI¹1922206/19/9671+374240.96E0749-396 AirFilterSr-90Tl¹1922306/19/9646+349+20.94E0750-396 AirFilterSr-90TI¹1922406/19/9666+463k31.05Footnotes (a)TeledyneResults-countingerroristwostandarddeviations.

UnitsarepCI/liter forwaterandmilk.Forgammaresults.iftwostandarddeviations arelessthan10%,thena10%erorisrcportcd.

UnitsaretotalpCIforairparticulate filters.(blRatiooi'Teledyne BrownEngineering toAnalytics results.82 0

80EPACROSSCHECKPROGRAMGROSSALPHAINAIRPARTICULATES (pg.1of1)604020201981198219831984198519861987198819891990199119921993199419951996aTlk3Sigma0EPAk3SigmaTheUSEPAdiscontinued airparticulate fittersamplesin1996.

EPACROSSCHECKPROGRAM160GROSSBETAINAIRPARTICULATES (pg.1of1)140120100806040200.1981198219831984198519861987198819891990199119921993199419951996D,TIk3SigmaoEPAk3SigmaTheUSEPAdiscontinued airparticulate fillersamplestn1996.

EPACROSSCHECKPROGRAM80STRONTIUM-90 INAIRPARTICULATES (pg.1of1)70605040302010-102019811982198319841985198619871988198919901991199219931994199519960TI23Sigma oEPA+3SigmaTheUSFPAdisconlinued airparliculale lillersamaplesin1996.

80EPACROSSCHECKPROGRAMCESIUM-137 INAIRPARTICULATES (pg.1of1)604020-201981198219831984198519861987198819891990199119921993199419951996Tlt3SigmaoEPAk3SigmaTheUSEPAdiscontinued airparticulate fillersamplesin1996.

100EPACROSSCHECKPROGRAMSTRONTIUM-89 INMILK(pg.1of1)806040200o201981198219831984198'9861987198819891990199119921993199419951996aTli3SigmaoEPAg3SigmaTheUSEPAdisconlinued milksamplesin1996.

0 80EPACROSSCHECKPROGRAMSTRONTIUM-90 INMILK(pg.1of1)604020201981198219831984198519861987198819891990199119921993199419951996oTIk3SigmaoEPAa3SigmaTheUSEPAdisconlinued milksamplesin1996.

2600EPACROSSCHECKPROGRAMPOTASSIUM-40 INMILK(pg.1'of1)24002200180016001400120010006001981198219831984198519861987198819891990199119921993199419951996oTl%3SigmaoEPAi3SigmaTheUSEPAdiscontinued milksamplesin1996.

160EPACROSSCHECKPROGRAMIODINE-131 INMILK(pg.1of1)140120100806040202019811982198319841~85198619871988198919901991199219931994199519960Tlf3SigmaoEPA+3SigmaTheUSEPAdisconlinued milksamplesin1996.

100EPACROSSCHECKPROGRAMCESIUM-137 INMILK(pg.1of1)80600CL40201981198219831984198.'98619871988198919901991199219931994199519960Tli3SigmaoEPAk3SigmaTheUSEPAdiscontinued milksamplesln1996.

180EPACROSSCHECKPROGRAMGROSSALPHAINWATER(pg.1of1)160140120100806040202019841985198619871988198919901991199219931994199519961997Tlt3SigmaoEPAt3Sigma 260EPACROSSCHECKPROGRAMGROSSBETA1NWATER(pg.2of2).2201801401006020o-20198619871988198919901991199219931994199519961997oTli3Sigma0EPAa3Sigma

EPACROSSCHECKPROGRAMGROSSBETAINWATER(pg.1of2)220200180160140leO120100804020-20198119821983198419851986Tl23sigma<EPAa3sigma t

30000EPACROSSCHECKPROGRAMTRITIUMINWATER(pg.2of2)25000200001500010000500019851986198719881989199019911992199319941995199619978Tlk3Sigma0EPAa3Sigma

~+~~e~~~~I~~IIII~~~~I~I~t~I~~I~I EPACROSSCHECKPROGRAMlOD1NE-131 1NWATER(pg.1of1)180140'I006020-20198119831985198'9891991199319951997oTla3SigmaoEPAI3Sigma

EPACROSSCHECKPROGRAMCOBALT-60 INWATER(pg1of2)1008060402000-2019811982198319841985198619871988aTIX3sigma oEPAt3sigma

'120EPACROSSCHECKPROGRAlVI COBALT-601N WATER(pg.2of2)80604020-2019881989-199019911992199319941995199619970Tlk3Sigma0EPA+3Sigma EPACROSSCHECKPROGRAMCESIUM-134 INWATER(pg.2of2)806040CDCD20-2019881989199019911992199319941995199619970Tl13SigmaoEPAk3Sigma 0

4IIL~~~~~~~I0~40 V0 120EPACROSSCHECKPROGRAMCESIUM-137 INWATER(pg.2of2)10080604020-201988198919901991199219931994199519961997oTlk3Sigma-oEPA+3Sigma

EPACROSSCHECKPROGRAMCESIUM-137 INWATER(pg.1of2)80604020-201981198219831984198519861987Tli3sigmaoEPAf3s',gma 100EPACROSSCHECKPROGRAMSTRONTIUM-89 INWATER(pg.2of2)806040202019851986198719881989199019911992199319941995199619970Tlk3SigmaoEPAi3Sigma

EPACROSSCHECKPROGRAMSTRONTIUM89 INVfATER(pg.1of2)100806040DCL20-2019811983198419850Tli3sigmaoEPAk3sigma

80EPACROSSCHECKPROGRAMSTRONTIUM-90 INWATER(pg.1of1)604020201981198219831984198519861987198819891990199119921993199419951996'1997Tlk3SigmaoEPAk3Sigma

APPENDIXEREMPSAMPLINGANDANALYTICAL EXCEPTIONS 107

PROGRAMEXCEPTIONS AIRPARTICULATES On01/24/96, attheSouthBendairstation,astrongwindgustblewtheparticulate filterfromthesamplerheadandthefilterwaslost.Anenhancement wasaddedtotheprocedure, directing theusertopre-loadsampleheadsor.changefiltersinsidethevehicleifinclement weatherconditions exist.On03/06/96, itwasdiscovered thatelectricpowerwasoffatairstationsONS-5andONS-6.Atechnician walkeddownthepowerlineanddiscovered thatthelinefusewasopen.On08/14/96.

theONS-1samplepumplostpower.The'particulate and12sampleswerenotobtained.

On10/23/96.

theONS-2pumpwasfoundwiththebreakertripped.Thesamplepumponlyranfor34hours.On11/06/96theairparticulate and12resultsfromNewBuffalowereconsidered invalidasthesamplepumppulledanaverageof7.6LPMduringthe7daymonitoring period.On11/13/96powerwaslostatstationsONS-5andONS-6duetoatrippedfuseline.Noparticulate or12sampleswereobtained.

Throughout.

theyear,theairparticulate grossbetaresultsdidnotmeettheODCMLLDof.01pCi/m~.Thisisconsistent withhistorical results.SURFACEWATERlWiniericingconditions onLakeMichiganprevented surfacewatersamplecollections atbeachlocations (SWL-2andSWL-3)from01/01/96to03/31/96.

Wintericeclearedandsamplingresumedon04/Ol/96.

Inclement weatherprevented samplecollection on10/30/96atlocations SWL-2andSWL-3.Beginning on12/18/96throughtheendoftheyear,surfacewatersampleswerenotobtainedfromlocations SWL-2andSWL-3duetothereturnoficeattheshoreline.

OnOl/22/97TeledyneBrownEng.reportedthattheiodine-131 resultforstationSWL-3wasmorethan1.0pCi/liter (2.0pCi/liter) inDecember.

Thiswasattributed tothedecreased amountofsamplewatersenttothelabforanalysis.

108

GROUNDWATEROn01/26/96wellsamplesW1,W3,W4,W5,W6.W7,W8,W13,W14,SG-2,SG-4andSG-5werenotcollected duetoinclement weatherandelectricpoweravailability.

However,allweresubsequently sampledwithinthe25%graceperiod.GrossbetaresultsfromstatiohsSG-1.SG-2,SG-4,andSG-5onOl/25.04/25,07/26,and10/25/96werehigherthantheODCMLLDof4.0pCi/liter.

Thisisconsistent withhistorical data.On07/25/96, groundwater fromwell-14measuredatritiumresultof5,300pCi/liter andon10/25/96theresultfromwell-14was14,000pCi/liter.

ThisexceededtheODCMLLDof2000'pCi/liter.

DRINKINGWATEROnseveraloccasions thegrossbetaLLDfailedtomeettheODCMLLDof4.0pCi/liter attheSt.JosephandLakeTownshipFacilities.

Thisisconsistent withhistorical information.

Itappliestocomposite samplesfromSt.Joseph:02/02-02/14, 03/28-04/10, 04/25-05/08, 09/12-09/25 andIO/24-11/06.

FromLakeTownshipfacilitythecomposite sampleswere:03/14-03/27.

06/20-07/03.

and08/15-08/28.

Inaddition, theLakeTownshipdrinkingwatersamplefrom04/30/96wasnotcollected.

Thesamplecollector failedtoobtainthesample.Thiswasonlythesecondincidentofamisseddrinkingwatersamplesince1987andtheincidentwasattributed towaterlabtechnician oversight.

BROADLEAF SAIVB'LES INLIEUOFMILESAMPLESDuringl996nomilksampleswereobtainedbecausetwor,-'hethreeIndicator farmsdroppedfromtheprogram.Noreplacement farmscouldbelocated.PertheOffsiteDoseCalculation Manual,broadleaf samplesweresubstituted inlieuofmilksamples.Monthlybroadleaf sampleswerenotobtainedduringthefirstquarterof1996duetoseasonunavailability.

InAprilbroadleaf samplingbegan.InMayitwasdiscovered that.procedural directions, intheODCM,indicating wheretoobtainthe,indicator broadleaf samplesweremisinterpreted duringAprilsamplecollection.

Broadleaf sampleshadbeenobtainedfromthethreehighestD/Qlandsectorsinsteadofobtaining threeindicator samplesfromthehighestD/Qlandsector.Thiswascorrected fortheMaybroadleaf samples.Broadleaf cesium-.137 LLDresultsfromstationONS-2was298.0pCi/kgon04/24/96and74.6pCI/kgon05/22/96.

TheODCMLLDis60pCi/kgforcesium-137.

Allothergammaemittingradionuclides resultsmetrespective LLDsforMay1996.109 l0 On10/09/96, thebroadleaf cesium-137 resultwas)60pCi/kg(70.4pCi/kg)insectorA.Theothertwosamplelocations insectorAshowedIresults(60pCi/kg.Broadleaf sampleswerenotobtainedinNovemberandDecember1996duetoseasonunavailability.

FISHNofishwerecollected atlocationOFS-Son05/31/96.

TLDsThetransitdoeswasnotsubtracted fromtotalsforthethirdquarterTLDs.ThetransitTLDwasinadvertently notplacedintheshieldedTLDholder.110

APPENDIXF1996LANDUSECENSUS

APPENDIXFSUMMARYOFTHE1996LANDUSECENSUSTheLandUseCensusisperformed toensurethatsignificant changesintheareasintheimmediate vicinityoftheplantsiteareidentified.

Anyidentified changesareevaluated todetermine whethermodifications musttbemadetotheREMPorotherrelatedprograms.

Nosuchchangeswereidentified duringthe1996LandUseCensus.Thefollowing isasummaryofthe1996results.MilkFarmSurveThemilkfarmsurveyisperformed toupdatethelistofmilkfarmslocatedintheplantarea,toidentifytheclosestmilkfarmineachlandsector,andtoidentifythenearestmilkanimal'hose milkisusedforhumanconsumption.

ThemilkfarmsurveyfortheDonaldC.CookNuclearPlantwasconducted onJuly2.1996.In1996thereweretwodeletions totheMichiganDepartment ofAgriculture's listofdairyfarmsinBerrienCountyMichigan.

Oneofthedeletedfarmshadpreviously participated intheREMPMilkSamplingProgram.Thepr'eviously identified milkanimal,agoatowne~bySueDormancontinues tobe'heclosestmilkproducing animaltotheDonaldC.CookNuclearPlantwhosemilkisusedforhumanconsumption.

Theclosestedgeoftheanimalspastureis13,425feetfromthePlant'scenterline axis.ResidenQal SurveTheresidential surveyisperformed toidentifytheclosestresidence ineachlandsectorsurrounding theDonaldC;CookNuclearPlant.Theresidential surveywascompleted onJuly2,1996.Therewasonenewresidential buildingpermitsissuedbyLakeTownshipduring1996.Inadditionadoor-to-door surveywasthenconducted usingalocalareamap.Theclosestresidence totheDonaldC.CookNuclearPlantineachsectorremainsunchanged fromthepreviousyear.112

Broadleaf~Surve Inaccordance withOffsiteDoseCalculation Manual,broadleaf vegetation samplingisperformed inlieuofagardencensus.Broadleaf samplingisperformed tomonitorforplantimpactontheenvironment.

Thesamplesareobtainedatthesiteboundary.

Thebroadleaf analytical resultsfor1996werelessthantheTechnical Specification LLDs.'13

Figure4INDIANAMICHIGANPOWERCOMPANY-DONALDC.COOKNUCLEARPLANTMilkFarmSurvey-1996SurveySectorYearDistanceMilesAddressBDGabN/AN/AN/AN/AN/AN/A13.95.110.510.56.84.14.17.07.07.77.71212NomilkfarmsNomilkfarmsNomilkfarmsNomilkfarmsNomilkfarmsNomilkfarmsWilliamNimtzGeraldTotzkeAndrewsUniversity AndrewsUniversity LeeNelsonLeeNelsonG.G.Shuler&SonsG.G.Shuler&SonsGeorgeFreehling GeorgeFreehling JerryWarmbeinJerryWarmbeinKennethTappanKennethTappanN/AN/AN/AN/AN/AN/A3445ParkRd.,EauClaire6744TotzkeRd.,BarodaBerrienSpringsBerrienSpringsRFD1,Box390A,SnowRd.BarodaRFDl.Box390A,SnowRd.Baroda*RFD1,SnowRd.,BarodaRFD1,SnowRd..Baroda2221W.GlendoraRd.,Buchanan2221W.Gtc.i.uora Rd.,Buchanan14143MillRd.,ThreeOaks14143MillRd.,ThreeOaksRt.2,KrugerRd,ThreeOaksRt.2,KrugerRd,ThreeOaksAllothersectorsarcoverwater.(a)Reporting Year(b)Yearpriortoreporungyear.114

Figure5INDIANAMICHIGANPOWERCOMPANY.DONALDC.COOKNUCLEARPLANTltrsl<l<>>tin)

I>>>>dUscSurvey-I!)96SectorHouselt)InFeetProert¹StrcctAddress13216.216I2)621653093309357335733II-I1.0006-0004-'01-7 II-II-ooo6-ooon

-o)-7II-II-ooo6.ooon-o9-2 11-11-0006 0004-09-2 II-II-6800.0028-00-0 II-I1-6800-0028.00-0

)1-11-0005-0036.0)

-8II~I1-0005-0036-0)

-8lierDrive.RosemaryDcaclilierDrive.RosemaryBeachlierDrive,Rosemaryl3cachlierDrive.Roscntary B<ac))LakeRoad.RosemarylicacliLakeRoad,Rosemary13cach7500ThorlonDrive7500ThortonDriveFVl1010563)56315392539237283728494449443366336630903090II-I).0005.0009-07-0 II-I)-0005-0009-07-0 11-11-0008-0015-03-1 1)-)1-0008-0015-03-1 II-I1-0007-0013-01-4 11-11-0007-0013-01-4 II-I1-8600-0004-00-1 11-1)-8600-0004-00-1 II-I1-0007-00)0-02-3 II-I1-0007-00 10-02-3II-I1-0007-0010-03-1 11-11-0007-0010-03-1 7927RcdArrow7927RcdArrow8197RcdArrow8197RcdArrowLivingston RoadLivingston RoadWildwoodWI)dwoodL)v)ngsto<>

HillsLivingston IIillsLlvlngston Hl)lsLivingston Hills)Iig)1wayIllghtvayHlglnvayH)ghway[I)House¹indicated Istherel'erence numberusedonmapwhenobtaining therawAciddata.la)Reporting Yearlb)Yearprtortoreporongyear.

DONALDC.COOKNUCLEARPOWERPLANT10MlLEEPZBERRlENCOUNTY1996uILKFA(I.'lStr'R)jrY rnH~~~I~~~~~alaHI,S'r.A.((aI~~IWt~I~Cnj'I~Ie~!~IS0~360AIIspeltHl(r'MB.I(ll301+iIl(n((jsIxaI~I~I,x8~R~eI~(EtpxI~~,+(s(t(I~~II'I~~~~IS(SI(wI4(I!ne'sisstjtg, 0(Isjs(I~~ls'...II'ets~rt~IsIs~s(Soot~N~~~oapsst~)I.O'>I)III(~as"jl~IJp~s)~III(lII~~~(s)~~~~~~~\~II~II!)I(7~.I()otsn'"sI~nttsI~~~(~ax((m~we!I"-"ii'aI&lat/PI7I(InesP.IiPtgS.W~~cf'b,~)WSaon(sn'l>>W~e$~IIV]~1~,~~~~~Ia(s)AI',t.Iyswats3I~,II~I~re~~l3Vsp)sCroenst770"/pIrwwI~ClosetsnllsSueDorsssn~~IwIt~'AnltseII~~~I~'I~~~i~~~~~~ttea,~IIIgle(I;t~>,lerg733AndrewsIjnlverslty or~w~s(oI~l!I1$(~I~~~Itjr4~EIt(wwO(rIgHllsAI~t~'t~~~~'Ii~s',I.~A~r,~E'~~~~~;~~/~oI~soot~37Scnu(p-i=t5sjex'3=I~Aw"I~I~Et',w~"I~I~HIA'.4IIWt~I~nlroyIIrslje25ClsjII.~~ellIonnusretseln

~s'I0.).o(tasct

~I~twI(0E00o'i~I8ro(!assn lerel("es3'I~i(onI~xl~w~wreu~rI,~j,rwow~rVWwtgs~Q~~70PsyneIP.I.o(necss I~~~~~lln(.;,'1((ys')"

pptns~wttI~l-:H')~,Io~oI:ls!Psso~rs'~~l'Arl'te(~Isa)All;"'/~'"lICs116

vOigI):--Q4]ma:Yr((prQo/,t.,/I,,OB~4$vl'~Z~go0,TjrgO~/';'O)gg/VtQs/-///Il)-e~()/!~~J('96RESIDEHTIAL LANDUSESURVEY

APPENDIXGSUMMARYOFTHEPRE-OPERATIONAL RADIOLOGICAL MONITORING PROGRAM118

~I SUlVQ~YCFTHEPRE<OPERATIONAL RADIOLOGICAL MONITORING PROGRAMApreoperational radiological environmental monitoring programwasperformed fortheDonaldC.CookNuclearPlantfromAugust1971untiltheinitialcriticality ofUnit1onJanuary18,1975.Theanalysesofsamplescollected inthevicinityoftheDonaldC.CookNuclearPlantwereperfGrmed byEberlineInstrument Corporation.

Thesummaryofthepreoperational programpresented inthisappendixisbasedonthesevensemi-annual reportscoveringtheperiod.Thepurposeofthissummaryistoprovideacomparison oftheradioactivity measuredintheenvironsoftheDonaldC.CookNuclearPlantduringthepre-start upofUnit1andtheradioactivity measuredin1996.AsstatedinthereportfortheperiodofJuly1toDecember31.1971~thepurposesofapreoperational radiological monitoring programinclude:(a)-Toyieldaveragevaluesofradiation levelsandconcentrations ofradioactive materialinvariousmediaoftheenvironment.

(b)Toidentifysamplelocations and/ortypesofsamplesthatdeviatefromtheaverages.

(c)Todocumentseasonalvariations thatcouldbeerroneously

>t~rpreted whenthepowerstationisoperating.

(d)Toindicatetherangeofvaluesthatshouldbeconsidered "background" forvarioustypesofsamples.(e)To"prooftest"theenvironmental monitoring equipment andprocedures priortooperation ofthenuclearpowerstation.(h)Toprovidebaselineinformation thatwillyieldestimates ofthedosetoman,ifany,whichwillresultfromplantoperation."

Thediscussion t,hatfollowsisforthevarioussamplemediacollected andanalyzedinboththepreoperational periodandduring119

1996.Ana]ysesperformed duringthepreoperational butnotrequiredin1996,arenotdiscussed.

Thegrossbetaactivityinairparticulate filtersrangedfrom00-'0.17pCi/m3fromthemiddleof1971tothe'middle of1973.1973andinJuneof1974thepeople'sRepublicofChinadetona<<datmospheric nucleartests.Asaresulttherewereperiodsduringwhichthegrossbetaresultswereelevatedtoashighas0.45pCi/m3statistically significant differences betweenindicator andbackground stations.

Bytheendofthepreoperational periodthevalueswereapproximately 0.06pCi/m3.Thegammarayana]ysesofcomposited airparticulate filtersshowed"traceamounts"offissionproducts, Ce-144,Ru-106,Ru-103.Zr-95andNb-95,theresu]tsoffa]]outfrompreviousatmospheric nucleartests.Cosmogenically producedbervllium-7 wasalsodetected.

Thedirectradiation background asmeasuredbythermoluminescent dosimeters (TLD)rangedbetween1.0andnirem/week duringthethreeandone-halfyearsperiod.Milksamplesduringihepreoprationalperiodwereanalyzedf<<iodine-]3]

andbygammaray-spectroscopy (andforstrontium-89 andstrontium-90).

Allsampleshadnaturally occurring potassium-40 withvaluesrangingbetween520and2310pCi/liter.

Cesium-137 wasnie;isurcd inmanysamplesafterthetwoatmospheric nucleartestsnicntioned above.Thecesium-137 activityrangedfrom8to33pCi/>><<r.iodine-13]

wasmeasuredinfourmilksamplescollected July9.1974.Thevaluesrangedbetween0.2and0.9pCi/liter.

Lakewatersampleswerecollected andanalyzedfortritium>>d bygammarayspectroscopy.

Trii.iumactivities werebelow1000pCi/>><<randtypically averagedabout.400pCi/liter.

Noradionuclides w<<edetectedbygammarayspectroscopy.

]20

Gammarayspectroscopy analysesoflakesedimentdetectednaturalabundances ofpotassium-40, uranium,and thoriumdaughters, andtracesofcesium-137 below0.1pCi/gwhichisattributed tofallout.Gammaspectroscopy analysesoffishdetectednaturalabundances ofpotassium-40 andtracesofcesium-137, thelatterattributed tofallout.Drinkingwateranalysiswasnotpartofthepreoperational program.

0 APPENDIXHSUMMARYOFTHESPIKEANDBLANKSAMPLEPROGRAM122

TELEDYNEBRO~ENGPlEERING QUALITYCONTROLPROGRAMThegoalofthequalitycontrolprogramatTeledyneBrownEngineering istoproduceanalytical resultswhichareaccurate, preciseandsupported byadequatedocumentation.

Theprogramisbasedontherequirements of10CFR50,AppendixB,NuclearRegulatory Guide4.15andtheprogramasdescribed inQualityAssurance ManualIWL-0032-395 andQualityControlManualIWL-0032-365.

Allmeasuring equipment iscalibrated forefficiency atleastannuallyusingstandardreference materialtraceable toNIST.Foralphaandbetacounting, checksourcesarepreparedandcountedeverydaythecounterisinuse.Controlchartsaremaintained with'threesigmalimitsspecified.

Controlofthealpha-beta countingequipment isdescribed inprocedure PRO-032-27, "Calibration andControlofAlpha/Beta Counters".

Backgrounds areusuallymeasuredatleastonceperweek.Thegammaspectrometers arecalibrated annuallywithaNISTtraceable standardreference materialselectedtocovertheenergyrangeofthenuclidestobemonitored andtoincludeallofthegeometries measured.

Backgrounds aredetermined everyotherweekandchecksourcesarecountedweekly.Theenergyresolution andefficiency wereplottedattwoenerpvlevelsonchartsandheldwithinthreesigmacontrollimits.FromJanuaryI,1996December31,1996theenergylevelswere59.5and1332KcV.This-;oc.dure isdescribed inPRO-042-44.

"Calibration andControlofGammaRaySpectrometers".

Theefficiency oftheliquidscintillation countersisdetermined atleastannuallybycountingNISTtraceable standards whichhavebeendilutedinaknownamountofdistilled waterandvariousamountsofquenching agent.Theprocedure isdescribed inPRO-052.-35.

"Determination ofTritiumbyLiquidScintillation".

Thebackground ofeachcounterismeasuredwitheachbatchofsamples.Acontrolchartismaintained forthebackground andchecksourcemeasurements asastability check.Preparation ofcarriersolutions andacceptability criteriaarecontained inprocedure PRO-032-49 "Standardization ofRadio-chemical Carrier123

Solutions".

Preparation ofefficiency calibration standards andchecksourcesisdescribed inprocedure PRO-032-27, "Calibration andControlofAlpha/Beta Counters".

ResultsarereviewedbeforebeingenteredintothedatasystembytheQualityAssurance orLaboratory Manager,orsupervisors forreasonableness oftheparameters (background, efficiency, decay,etc.).Anyresultswhicharesuspect,=being higherorlowerthanresultsinthepast,arereturnedtothelaboratory forrecount.Ifalongercount,'ecay check,recountonanothersystemorrecalculation doesnotgiveacceptable resultsbasedonexperience, anewaliquotisanalyzed.

Thecompleteinformation aboutthesampleiscontained ontheworksheet(s).

Nodeviations fromwrittenprocedures occurredduring1996.124

ResultsofDuplicate Analysesfor1996SamleeAnalsisFirstAnalsisSecondAnalsisAirParticulates ResultsinUnitsof10-3pCi/m3Gr-B,eta~I2.5+0.2E-022.6+0.3E-022;3+0.2E-021.7+0.2E-021.6+0.2E-022.3+0.2E-022.1+0.2E-021.4+0.2E-021.6+0.2E-021.9+0.2E-021.5+0.2E-021.1+0.2E-021.5.0.2E-022.1+0.2E-021.9+0.2E-022.0+0.2E-021.8+0.2E-023.0+0.2E-022.2+0.2E-021.7+0.2E-021.7+0.2E-022.1+0.2E-022.3+0.2E-021.2+0.2E-022.6+0.2E-022.9+0.3E-023.6+0.4E-022.4+0.22.3+0.32.3+0.21.7+0.21.6+0.22.1+0.22.2+0.21.4+0.21.6+0.21.9+0.21.5+0.21.3+0.21.5+0.22.3+0.22.1+0.22.1+0.22.0+0.23.0+0.22.3+0.22.3+0.21.8+0.21.8+0.22.3+0.21.4+0.22.6+0.22.7+0.33.6+').5E-02E-02E-02E-02E-02E-02E-02+-02E-02E-02E-02E-02E-02E-02E-02E-02E-02E-02E-02E-02E-02E-02E-02E-02E-02E-02E-02AirParticulates/

CharcoalFiltersResultsInUnitsof10-pCI/m1adinc-131L.T.1.L.T.1.L.T.5.L.T.l.L.T.7.L.T.7.L.T.2.L.T.5.L.T.1.L.T.l.L.T.8.L.T.l.L.T.9.L.T.l.L.T.l.E-02E-02E-03E-02E-03E-03E-02E-03E-02E-02E-03E-02E-03E-02-E-02L.T.1.E-02L.T.6.E-03L.T.l.E-02L.T.l.E-02L.T.2.E-02L.T.9.E-03L.T.1.E-02L.T.1.E-02L.T.5.E-03L.T.8.E-03L.T.6.E-03L.T.2.E-02L.T.9.E-03L.T.2.E-02L.T.6.E-03Footnotes locatedatendoftable.125

ResultsofDuplicate Analysesfor1996(cont.)SamleeAnalsisFirstAnalvsisSecondAnalsisAirParticulates/

CharcoalFiltersResultsinUnitsof10-3pCI/m3Iodine-131 L.T.6.L.T.7.L.T.l.L.T.5.L.T.6.L.T.l.L.T.7.L.T.9.L.T.l.L.T.l.L.T.8.L.T.3.E-03E-03E-02E-03E-03E-02E-03E-03E-02E-02E-03E-02L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.L.T.8.E-032.E-021.E-029.E-039.E-03l.E-02l.E-021.E-021.E-022.E-021.E-022.E-02SurfaceWaterResultsInUnitsoi'CI/liter H-3H-3L.T.1.E02L.T.2.E02GroundWaterResultsinUnitsofpCI/liter DrinkingWaterResultsInUnitsofpCI/liter GammaH-3Gr-AlphaGr-BetaGammaH-31-131GammaH-3GammaH-31-131GammaH-3Gr-BetaI-131GammaGr-Beta1-131Gamma(a)3.4+1.1E02(a)7.3+2.2E00.(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)3.6+1.0E00(a)(a)3.5+1.0E00(a)(a)(a)2.9+1.1E02(a)6.7+2.1E00(a)(a)(a)(a)(a)(pl(a)'a)(a)(a)2.9+1.0E00(a)(a)3.4+1.1E00(a)(a)Footnotes locatedatendoi'able.126

ResultsofDuplicate Analysesfor1996(cont.)SamleeAnalslsFirstAnalsisSecondAnalsisFoodResultsinUnitsofpCi/kg(wet)GammaK-40Be-7Cs-137(a)(a)2.39+0.24E031.72+0.17E037.58+0.88E023.28+0.91E02(b)2.55+1.91EOl(c)(a)Allgammaresultslessthanthedetecoonlimit(LLD).(b)Resultpositivebutassociated errormadeitsuspect.(c)Confirmed byareanalysis.

127 TeledyneBrownEngineering In-HouseSpikedSampleResults-1996WaterGrossAlphaGrossBetaGamma(Cs-137)Gamma(Cs-137)H-3(LS)ikeLevelsCiL1.1+0.5E012.2+0.7EOl2.2+0.3E042.0+0.3E041.4+0.4E03AccetableRaneCi10.6-1.6E011.5-2.9E011.9-2.5E04(1/3-1/31/96) 1.7-2.3E04(2/7-12/26/96) 1.0-1.8E03068060740907850085410908009408099061040610832111841188212380128951331213932146311510715514160031661816838173711775418334188311945520049206722109821890224202272723137AxuQysisDate01/03/9601/10/9601/17/9601/24/9601/31/9602/07/9602/14/9602/21/9602/28/9603/06/9603/13/9603/20/9603/27/9604/03/9604/10/9604/17/9604/24/9605/01/9605/08/9605/15/9605/22/9605/29/9606/05/9606/12/9606/19/9606/26/9607/03/9607/10/9607/17/9607/24/9607/31/9608/07/9608/14/96GrosBetaL1.3+02EOl2.5+0.2EOl2.5+0.2EOl2.6+0.2E012.0+O.lEOl2.1+0.2EOl1.7+O.lE012.2+0.2EOl"1.4+O.lEOl1.8+0.1E011.9+0.2E012.3+0.2EOl2.2+0.2E011.8+O.lE011.6+O.lEOl2.3+0.2<Ol2.1+0.2EOl1.6+O.lEOl1.8+O.lEOl2.1+0.2EOl1.8+O.lEOl2.3+0.2E012.3+0.2EOl2.1+0.2EOl2.3+0.2EOl2.3+0.2EOl1.8+O.lEOl2.3+0.2EOl2.0+0.1EOl2.3+0.2EOl2.3+0.2EOl1.6+O.lEOl2.0+O.lEOl128 TI¹23840241.812474325119257752626326820274342820628965293622980830605312033165032143'2713 3325433811AnalysisDate08/21/9608/28/9609/04/9609/11/9609/18/9609/25/9610/02/9610/09/9610/16/9610/23/9610/30/9611/06/9611/13/9611/20/9611/27/9612/04/9612/ll/9612/18/9612/26/96GrossBetaCi2.1+0.2EOl2.1+0.2EOl1.6+O.lEOl2.3+0.2EOl2.1+O.lEOl1.9+O.lEOl2.5+0.2EOl2.4+0.2EOl2.4+0.2EOl2.5+0.2E012.4+0.2E0126+02EOl2.2+0.2EOl2.6+0.2EOl2.7+0.8E00(a)2.1+0.2E012.7+0.2E012.2+0.2EOl2.3+0.2EOlTI¹SPIKES-GAMMA(Cs-1.37) lumhs'-"*06811074140785508546090850941309911104111083711189118871238512889133081392614627151021599701/03/9601/10/9601/17/9601/24;9601/31/9602/07/9602/14/9602/21/9602/28/9603/06/9603/13/9603/20/9603/27/9604/03/9604/10/9604/17/9604/24/9605/08/962.2+0.2E042.3+0.2E042.2+0.2E042.14+0.21E042.32+0.2..E042.06+0.21E042.05+0.21E042.09+0.21E042.09+0.21E042.42+0.24E042.45+0.25E042.08+0.21E042.08+0.25E042.11+0.21E042.09+0.21E042.07+0.21E042.21+0.22E042.12+0.21E04(a)Thegrossalphaandgrossbetarecoveries forspikedsample31650wereapproximately 10%.Errorsincounting.

dataentryorcalculation havebeenruledoutasacausetothebestofourability.Possiblepipetting errorisspkingthesamplecannotbeconfirmed ordenied,butisunlikely.

Subsequent spikedsampleswereincontrol.129

TI0SPIKES-GA1VMA(Cs-137)ci1661416835173681775118828.19452200462066921095218872241722724231342383724178247402511625772262602681727431282032896229359298053009330602312003145831647321403271033251335703380805/15/9605/22/9605/29/9606/05/9606/19/9606/26/9607/03/9607/10/9607/17/9607/24/9607/31/9608/07/9608/14/9608/21/9608/28/9609/04/9609/11/9609/18/9609/25/9610/02/9610/09/9610/16/9610/23/9610/30/9611/06/9611/08/9611/13/9611/20/9611/22/9611/27/9612/04/9612/11/9612/18/9612/20/9612/26/962.09+0.21E042.06+0.21E042.06+0.21E042.08+0.21E042.14+0.21E042.02+0.20E042.04+0.20E042.11+0.21E042.07+0.21E042.07+0.21E042.07+0.21E042.05+0.21E042.03+0.20E042.07+0.21E042.02+0.20E042.10+0.21E042.06+0.21E042.13+0.21E042.11+0.21E042.05+0.21E042.03+0.20E042.04+0.20E042.08+0.21E042.06+0.21E042.08+0.21E042.05+0.21E042.03+0.20E042.08+0.21E042.02+0.20E042.04+0.20eu42.08+0.21E042.09+0.21E042.07+0.21E042.10+0.21E042.04+0.20E04TI¹SPIKES-TRITIUM-(H-3)10mlIItslzsCi106808074110785208543090820941001/03/9601/10/9601/17/9601/24/9601/31/9602/07/961.44+0.15E031.56+0.17E031.49+0.15E031.19+0.14E031.39+0.15E031.35+0.16E03130 TI¹'PIKES-TRITIUM-(H-3)10mlc'9908104081083411186118841238212899133.'6139361463515111155161600516620168421737517758183381883519459200532067621102218942242422731231562384424185247472512325779262672682427438282102896929366298123060931207316543214732717332583381502/14/9602/21/9602/28/9603/06/9603/13/9603/20/9603/27/9604/03/9604/10/9604/17/9604/24/9605/01/9605/08/9605/15/9605/22/9605/29/9606/05/9606/12/9606/19/9606/26/9607/03/9607/10/9607/17/9607/24/9607/31/9608/07/9608/14/9608/21/9608/28/9609/04/9609/11/9609/18/9609/25/9610/02/9610/09/9610/16/9610/23/9610/30/9611/06/9611/13/9611/20/9611/27/9612/04/9612/11/96-12/18/9612/26/961.38+0.16E031.37+0.16E031.63+0.17E031.37+0.16E031.44+0.16E031.47+0.16E031.43+0.17E031.46+0.19E031.51+0.18E031.66+0.20E031.35+0.17E031.32'+0.15E031.33+0.15E031.52+0.16E031.33+0.15E031.39+0.11E031.71+0.20E031.37+0.15E031.35+0.15E031.28+0.15E031.19+0.16E031.32+0.17E031.34+0.15E031.39+0.15E031.27+0.15E031.24+0.15E031.36+0.15E031.32+0.15E031.13+0.15E031.40+0.16E031.30+0.16E031.41+0.16E031.22+0.15E031.23+0.14E031.41+0.19E031.26+0.15E031.14+0.17E031.43+0.17E031.09+0.15E031.13+0.16E031.24+0.16E031.17+0.17E031.25+0.16E031.28+0.17E031.26+0.18E031.55+0.18E03131

TeledyneBrownEngineering In-HouseBlanksSampleResults-1996WaterGROSSBETABLANKSTI¹AnalysisDateGrossBetaC"06805074080784908540090790940709905104051083111183118811237912894133111393114630151061551316002166171683717370177531833318830194542004820671210972188922419227262313623839241802474225118257742626201/03/9601/10/9601/17/96Ol/24/9601/31/9602/07/9602/14/9602/21/9602/28/9603/06/9603/13/9603/20/9603/27/9604/03/9604/10/9604/17/9604/24/9605/01/9605/08/9605/15/9605/22/9605/29/96, 06/05/9606/12/9606/19/9606/26/9607/03/9607/10/9607/17/9607/24/9607/31/9608/07/9608/14/9608/21/9608/28/9609/04/9609/ll/9609/18/9609/25/96L.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.TL.TL.TL.TL.T8.8.8.9.9.8.1.9.8.9.8.7.8.7.8.7.9.1.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.8.8.8.7.8.8.8.9.9.8.8.9.8.8.L.T.8.L.T.8.E-OlE-01E-01E-01E-OlE-01E00E-01E-01E-01E-01E-01E-01E-OlE-01E-01E-OlE00E-OlE-01E-OlE-OlE-01E-01E-01E-01E-OlE-01E-01E-01E-01E-01E-01E-01E-01E-01E-OlE-01E-01132

GROSSBETA-BLANKS(Cont.)Tl¹AnalysisDateGrossBetaCi26819274332820528964298073060431202316493214232712332533381010/02/9610/09/9610/16/9610/23/9611/06/9611/13/9611/20/9611/27/9612/04/9612/11/9612/18/9612/26/96L.TL.TL.TL.TL.T.L.T.L.T.L.TL.TL.TL.TL.T8.E-018.E-018.E-Ol8.E-019.E-019.E-018.E-Ol8.E-017.E-017.E-019.E-018.E-01TI¹TRITIUM-(H-3)-BLANKSActivi068100741307854085450908409412099101041010836ll1881188612384128971331413934146331510915518160071662216840173731775618336188331945701/03/9601/10/9601/17/9601/24/9601/31/9602/07/9602/14/9602/21/9602/28/9603/06/9603/13/9603/20/9603/27/9604/03/9604/10/9604/17/9604/24/9605/01/9605/08/9605/15/9605/22/9605/29/9606/05/9606/12/9606/19/9606/26/96L.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.1.43E021.57E021.48E021.60E021.53E021.65E021.90E021.84E022.14E022.0CE021.60E021.79E021.90E022.24E022.26E02238E021.81E021.51E021.61E021.42E021.53E021.09E021.62E021.43E021.61E021.51E02133 TI¹TRITIUM-(H-3)-BLANKS(Cont.)isDateCi200512067421100218922242222729231552384224183247452512125777262652682227436282082896729364298103060731205316523214532715332563381307/03/9607/10/9607/17/9607/24/9607/31/9608/07/9608/14/9608/21/9608/28/9609/04/9609/11/9609/18/9609/25/9610/02/9610/09/9610/16/9610/23/9610/30/9611/06/9611/13/9611/20/9611/27/96.

12/04/9612/11/9612/18/9612/26/96L.T.1.75E02L.T.1.66E02L.T.1.40E02L.T.1.50E02L.T.1.55E02L.T.1.48E02L.T.1.46E02L.T.1.50E02L.T.1.60E02L.T.1.63E02L.T.1.69E02L.T.1.56E02L.T.1.56E02L.T.1.48E02L.T.2.34E02L.T.1.57E02L.T.1.74E02L.T.1.80E02L.T.1.69E02L.T.1.74E02L.T.1.74E02L.T.1.91E02L.T.1.74E02L.T.1.87E02L.T.2.00E02L.T.1.72E02134 0

APPENDIXITLDQUALITYCONTROLPROGRAM135 TLQQUALITY'ONTROL PROGRAMTeledyneBrownEngineering performsanin-housequalityassurance testingprogramfortheenvironmental TLDlaboratory.

Onaquarterly basistheQAmanageroraqualified designate exposesgroupsofTLDstothreedifferent dosesusingaknownexposureratefromacesium-137 source.Typicalexposures arebetween20and80mR.TheTLDsarereadoneachofthethreeModel8300Readersintheenvironmental TLDlaboratory andthecalculated resultsarereportedtotheQAmanager.TheQAmanagerevaluates theresultsandwritesareportdiscussing theperformance ofthelaboratory.

For1996allresultswerewithintherequirements ofRegulatory Guide4.l3,SectionC.Thestandarddeviations ofthreemeasurements ateachexposureforeachreaderwaslessthan7.5%.Thepercentdeviation oftheaverageofthethreemeasurements fromtheknownexposureateachexposureforeachreaderwaslessthan30%.Theaccompanying graphsindicatethenormalized deviations oftheaveragemeasurements fromtheknownexposures ateachexposureforeachreader.136 QUALITYCONTROL-TLDsHIGHDOSE0.8Cl00XC2DClE0C04CO0E00.60.40.2-0.2-0.4-0.6-0.8-1.2-1.4//rIReader¹242malfunctioned duringtestingin3/96.Testrepeatedin4/961/933/937/9310/932/945/949/9412/943/956/9510/9512/953/964/966/967/969/9612/96Reader-205

-w-~Reader-211

~Reader-242 rr-,.Reader-9150 Reader-9150 permanently removedfromserviceduringthefirstquarter1993.

QUALlTYCONTROL-TLDsLOWDOSEoI0CLXoOC0ClE0C0C$0'0E0K2.51.50.5.-0.5-1.5-2.A-ifjX/y/Readerf/2O5testinvalidin3/96.Testrepeatedin4/96.',rIIteReaderff242malfunctioned duringtestingin3/96.Testrepeatedin4/96I/\I1/933/937/9310/932/945/949/9412/S43/956/9510/S512/953/964/966/967/969/9612/96--e--Reader-205

-W-Reader-211

~Reader-242

~Reader-9150 Reader-9150 waspermanently removedfromserviceduringthefirstquarter1993.

0 QUALITYCONTROL-TLDsMIDDLEDOSEo40CLOQI0=CoE0C0o'QE0X1.50.5-0.5-1.5e.>e-~Reader8242.malfunctioned duringtestingin3/96.Testrepeatedin4/96~~~~/1/g33/g37/g310/932/945/949/9412/943/956/9510/9512/953/964/966/967/969/9612/96Reader-205

-W-~Reader-211

~Reader-242

~Reader-9150 Reader-9150 waspermanently removedfromserviceduringthefirstquarter1993.

QUALlTYCONTROL-TLDSTLDREADER205IOI-C0COE0C0gd'50Nt5E0Z2.51.50.50-0.5//e/3/96TestInvalid.Repeated4/96.II~~I~~IIIIIII1Ie-~-8-1.51/933/937/9310/g32/945/g4g/9412/943/956/9510/9512/953/964/967/969/9612/96LowDose--e-MiddleDose-6t-HighDose QUALITYCONTROL-TLDSTLDREADER211l.50.50prSig-0.5////-1.5-21/933/937/931P/932/945/949/9412/943/956/951P/9512/953/964/967/969/9612/96LowDose--e-.MiddleDoseHighDose

QUAONTROL-TLDsToREADER2421.5OD0aXOOI-0cQC0C0gDC)CUE00.5-0.5-1.5Q~IIIsIIreadermalfunction in3/96Testrepeatedin4/96-21/933/937/9310/932/945/949/9412/'943/956/9510/9512/954/966/969/9612/96--e--L."wDose--e-MiddleDose~HighDose