ML17309A426

Radiological Environ Survey Jan-Dec 1988. W/890429 Ltr

ML17309A426
Person / Time
Site:	Ginna
Issue date:	12/31/1988
From:	MECREDY R C ROCHESTER GAS & ELECTRIC CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 8905170093
Download: ML17309A426 (98)

Text

.CEDERTEDDlBUTIOY,DEMONS"TIONSYSTEMREGULATORY XNFORMATION DISTRIBUTION SYSTEM.(RIDS)ACCESSION NBR:8905170093 DOC.DATE:

88/12/31NOTARIZED:

NO.DOCKETFACIL:50-244 RobertEmmetGinnaNuclearPlant,Unit1,Rochester G05000244AUTH.NAMEAUTHORAFFILIATION MECREDY,R.C.

Rochester Gas&ElectricCorp.RECIP.NAME

'RECIPIENT AFFILIATION

SUBJECT:

"Radiological EnvironSurveyJan-Dec1988."W/890429ltr.DISTRIBUTION CODE:IE25DCOPIESRECEIVED:LTR lENCLlSIZE:TITLE:Environmental Monitoring Rept(perTechSpecs)NOTES:License Expdateinaccordance with10CFR2,2.109(9/19/72).

05000244gRECIPIENT IDCODE/NAME PD1-3LASTAHLE,CINTERNAL:

AEOD/DSP/TPAB NRRROTHMAN,RNRR/DREP/RPB 10F011PILE02EXTERNAL:

EGGGSIMPSON,FNRCPDRCOPIESLTTRENCL441111112211112211RECIPXENT IDCODE/NAME PD1-3PDIRMTECHADVNRR/DEST/ADE 8HNUDOCS-ABSTRACT RGN1DRSS/RPBLPDRCOPIESLTTRENCL111111112211S/NarZr)ALL"RXDS"RECZPXENZS

~PLEASEHELP'US10REDUCEWASTE.'XNZACZ

'XHEDOCUMENTCGPZROLDESK,"ROOMPl-37(EXT.20079)TOEIZKCNATE YOURKQKHUHDISTEUBVTION LXSTSFORDOCUMENZS YOUDGNITNEED!IITOTALNUMBEROFCOPIESREQUIRED:

LTTR21ENCL21DS LPfp"C40<g4,J j/jjjjjjjjjj/I

/jjjjjjjjjj/

AIVO/,/////I////@Ill

///l/llllllll

/~ZZullk//////Ij/j/I ROCHESTER GASANDELECTRICCORPORATION o89EASTAVENUE,ROCHESTER, N.Y.14649-0001 TKLKPHONC AREAcoDE7I4546-2700April29,1989U.S.NuclearRegulatory Commission DocumentControlDeskWashington, DC20555

Subject:

AnnualRadiological Environmental Operating ReportR.E.GinnaNuclearPowerPlantDocketNo.50-244

DearSirs:

Theenclosedinformation isbeingsubmitted inaccordance withtherequirement ofTechnical Specification Section6.9.1.3.Thisinformation isasummaryofallanalysesperformed aspartoftheRadiological Environment Monitoring requirements ofSection3.16oftheR.E.GinnaTechnical Specifications.

Trendplotsofgrossbetadataforairandselectedwatersamplesandgammameasurements fromTLD'ssurrounding theR.E.Ginnasiteareincludedfortheyear1988andtheyearsof1968to1988.Fromthedatacollected, theredoesnotappeartobeanymeasurable effecttotheenvironment fromtheoperation oftheR.E.Ginnaplant.Verytrulyyours,RobertC.Mecedy I4I~~

Mr.WilliamT.RussellRegionalAdministrator U.S.NuclearRegulatory Commission Region1475Allendale RoadKingofPrussia,PA19406ResidentNRCInspector GinnaStationMs.DonnaRossNevYorkStateEnergyOfficeEmpireStatePlazaAlbany,NY12223AmericanNuclearInsurersMAELUTheExchangeSuite245270Farmington AvenueFarmington, CT06032ATTN:WinthropHayesCentralRecords,GinnaStationCategory2.22.2 c4+~a RADIOLOGICAL ENVIRONMENTAL'URVEY-Zanua-December1988Theenvironment surrounding theGinnaNuclearPlantisroutinely monitored todetermine theinfluence ofplantoperation onthelevelsof'an-made radioactivity.

Samplesarecollected on-sitewhereconcentrations wouldbeexpectedtobehighestifareleasefromtheplantshouldoccurandcomparedtosampleswhichhavebeencollected simultaneously atpointswheretheconcentration oftheplanteffluentp iscalculated tobelessthan14ofthoseatthecloserlocations.

Thereference samplesprovidearunningbackground whichmakesitpossibletodistinguish betweensignifi-cantradioactivity introduced totheenvironment fromtheoperation oftheplantandthatintroduced bynucleardetonations orothersources.Duringtheyearof1988,1787sampleswereobtainedandanalyzed.

437ofthesesampleswereanalyzedbyagammascan.Inaddition, 16EPA'Interlaboratory Comparison Studiessampleswereanalyzedandreported.

Thesamples.includedair,water,fallout,fish,vegetation, milkanddirectradiation.

Therewasnosignificant difference betweenon-siteandoff-sitesamplesandnopositiveresultswerefoundthatwereduetoplantoperations.

Theconcentrations ofradioactive materialintheenvironment resulting fromplantreleaseswerecalculated fromthemeasuredreleaseratesanddilutionfactors.Thesecalculated concentrations couldnothavebeendetectedbecauseofthemagnitude andfluctua-tionsofthebackground orbecausetheywerebelowthesensitivity oftheanalyticprocedures.

Thecalculated concentrations wouldgiveadosecommitment wellbelowthedesignobjectives specified inAppendixI,10CFR50.ANALYTICAL RESULTSThevalueslistedonthefollowing tablesincludetheuncertainties statedas2standarddeviations (954confidence level).S905170093 SSi231PDRADOCK05000244RPDCpr-z</g

• +<<Qtp>"v<<4 rKeDefinitions Curie(Ci):Thequantityofanyradionuclide inwhichthenumberofdisintegrations persecondis37billion.Picocurie (pci):Onemillionth ofamillionth ofacurieor0.037disintegrations persecond.CubicMeter(M):Approximately 35.3cubicfeet.Liter(L):Approximately 1.06quarts.LowerLimitofDetection TheNuclearRegulatory Commission hasrequested thatreportedvaluesbecomparedtotheLowerLimitofDetection (LLD)foreachpieceofequipment.

TableXIIisalistingoftheLLDvaluesforgammaisotopesusingourGe(Li)multichannel pulseheightdetectorsystem.Thesevaluesarebeforethecorrection fordecay.Anexplanation ofthecalculation oftheLLDisincludedfollowing TableXII.Grossdetection

'limitsareasfollows:Beta:AirWaterMilk0.003pCi/MGrossbetafor400Msample.1.2pCi/LGrossbetafor1litersample.0.24pCi/LIodine131for4litersample.Fallout1.1pCi/m/dayfor0.092Mcollection area.Gamma:Air0.03pCi/mIodine131oncharcoalcartridge for400Msample.Radiation 5millirem/

quarterforonequarterexposure(TLD).AIRPARTICULATES Radioactive particles inairarecollected bydrawinganairsamplethroughatwoinchdiameterparticulate filteratarateofapproximately 1cfm.Thevolumeofairsampledismeasuredbyadrygasmeterandcorrected forthepressuredropacrossthefilter.Thefiltersarechangedweeklyandallowedtodecayforthreedayspriortocountingtoeliminate mostofthenaturalradioactivity suchastheshorthalf-life daughterproductsofradonandthoron.Thedecayperiodisusedtogiveamoresensitive measurement oflong-lived man-maderadioactivity.

rely~~4I1fvV>'~/,Sjf\V Thereisaringof6samplingstationsontheplantsitelocatedfrom150to300metersfromthereactoratthepointcalculated tobe.indicative ofmaximumannualaveragegroundlevelconcen-trationsfornormalplantreleases.

Inaddition, thereisaringof5samplingstationslocatedapproximately 7to10milesfromthesitethatserveasbackground stations.

Basedonweeklycomparisons, therewasnostatistical difference betweentheon-siteandthebackground radioactive particulate concentrations.

Theaverageconcentrations forboththeon-siteandbackground sampleswere0.018pCi/MfortheperiodofJanuarytoDecember, 1988.Maximumweeklyconcentrations foreachstationwerelessthan0.039pCi/m.Theaveragecalculated concentration ofparticulate atthesiteboundaryduetomeasureable plantparticulate releaseswouldbe6.97E-8pCi/Mor0.00027%oftheaveragereleaseconcentration of2.58E-2pCi/m.Theenvironmental samplingprogramcannotdetectsuchconcentrations againstthemagnitude ofthebackground of0.014pCi/mTableIAisalistof-valuesfortheon-sitesamplersduringJanuarythroughJune,Table.IIA-is a-list-fortheon-sitelocations during'JulythroughDecember.

TableIBisalistof-valuesforthe-off-sitesamplersduringJanuarythroughJune,TableIIBisalistforthe'off-site locations duringJulythroughDecember.

Theparticulate-filters fromeachsamplinglocationweresavedanda13weekcomposite wasmade.Agammaisotopicanalysiswasdoneforeachsamplinglocationandcorrected fordecay.Theresultsof'thisanalysis.

arelistedinTablesIIIAandB.Iodinecartridges areplacedatfourlocations.

Thesecartridges arechangedandcountedeachweek.Alistofvaluesforthesecartridges isgiveninTableIV.Atrendplotofthe1968to1988AirFilterdataisincluded.

Preoprational datain1968and1969wereapproximately anorderofmagnitude higherthancurrentvaluesduetoatmospheric bombtestingduringthoseyears.

il~9~(All~t,'P14$tiaar4 WATER"'Composite samplesarecollected weeklyfromLakeOntario,upstream(RussellStation)anddownstream (OntarioWaterPlant),andanalyzedforgrossbetaactivity.

Therewasnosignificant difference betweentheupstreamanddownstream sampleconcen-trations.

Theyearlyaverageswere2.24and2.35pCi/liter fortheupstreamanddownstream samplesrespectively.

ResultsarelistedinTableVAforJanuarythroughJuneandTableVBforJulythroughDecember.

Atrendplotoftheupstreamanddownstream samplesfrom1968to1988isincluded.

Preoperational datain1968and1969wereapproximately afactorof2higherthancurrentvaluesduetofalloutfrombombtestingduringthoseyears.Weeklycomposite samplesaretakenfromtheplantcirculating waterintakeanddischarge canal.Theyearlyaverageswere2.19and2.07pCi/liter fortheintakeanddischarge canalrespectively.

Theseareessentially thesameastheupstreamanddownstream valuesof2.24and2.35pCi/liter astheyfallwithintheerrorbandof+2sigmaandrangeofthemeasurement.

Forallbatchreleases, thecalculated averageconcentration inthedischarge canal'from theidentified activitywas0.058pCi/liter.

Thenormal'2sigmavariation" in'the=activity calcula-tionofcomposite samplesis0.84pCi/liter or15.timestheaverageconcentration addedbyreleasesfromtheplant.'Samplesoftapwater,thenearestwell,andthecreekwhichcrossesthesitewerecollected andanalyzedmonthly.Theresultsshow.noindication ofplantinfluence.

TheseresultsarelistedinTablesVAandVB.Gammaisotopicanalysiswasdoneoneachmonthlysampleandbiweeklyormonthlycomposites ofweeklysamples.ThesearelistedinTableVIIandseparated bysourceofsample.FALLOUTFalloutisatermusedtodenoteradioactive materialsettlingfromtheatmosphere totheground.Atthesamplingstations, thefalloutsettlesasdust.oriscollected withrainfallbyafunnelandbottle.Therearetwoon-sitesamplingstationsandthreeoff-site.

Falloutgenerally increases inthespringmonthsduetotransferoffissionproductsfromtheuppertotheloweratmosphere inconjunction withincreased rainfall.

Therewasnosignificant difference betweenon-siteandoff-sitesamplesfortheperiodofJanuarythroughDecember, 1988.TableVIIIliststhevaluesforfalloutsamples.

NE~EW EXTERNALPENETRATING RADIATION Athermoluminescent dosimeter (TLD)withasensitivity of1milliremisissuedas.partof.,theenvironmental monitoring.

Thirty-nine TLDbadgesarecurrently placedinfourringsaroundtheplant.Theseringsrangefromlessthan1000feetto15milesandhavebeendispersed soastogiveindications ineachoftheninelandbasedsectorsaroundtheplantpotential population exposures shouldanexcessive releaseoccurfromtheplant.Badgesarechangedandreadafterapproximately 3monthsexposure.

TLDlocation47isinfluenced byitscloseproximity totheContaminated Equipment StorageAreaestablished in1983andwillnormallyread40-60mRem/quarter.

Fortheyearof1988,omittinglocation7,on-siteexposurerangedbetween11.0and18.3mrem/quarter,withanaverageexposureof14.2mrem/quarter andoff-site10.0to18.5mrem/quarter withanaverageexposureof12.9mrem/quarter.

TableIXgivesTLDreadingsforeachquarter.Atrendplotofthequarterly averagedoseratebyTLDlocationisincludedcomparing 1987and1988.Duringearly1987,adjustments weremadetotheTLDsystemwhich-mayhaveresultedinincreased accuracyforlowdosemeasurements.

"'Thismayexplaintheapparentdifference<between the1987,.and 1988averageenvironmental exposures.

~Environmental factorscouldalsohavecausedthisdifference.

TheNRCalsodoesTLDmeasurements aroundtheplant.Comparing thedataforthesecondandthirdquarterof1988usingthedatafromNUREG-0837 Vol.8,No.2&3.ResultsinmRem/quarter.

Lessthan2miles2-5milesGreaterthan5milesGinnaSecondThird13.913.913.613.311.811.9NRCSecondThird14.715.814.115.114.114.5MILKMilksamplesarecollected monthlyduringNovemberthroughMayfromoneofthethreedairyherdslocatedthreetofivemilesfromtheplant.DuringtheperiodstartinginJunethroughOctober,asampleiscollected fromeachfarmbiweekly(onceeverytwoweeks).Acontrolfarmsampleistakenforeachmonthlysampleandonceduringeachbiweeklyperiod.ThemilkisanalyzedforIodine-131 andalsogammascannedformajorfissionproducts.

Themethodinvolveschemicalseparation ofiodineandgrossbetacounting.

Interference fromotherradioactive isotopeshasmadetheresultssuspectinthattheyarebiasedhigh.Thecountingprocedure isnotspecificforIodine-131 andotherisotopesmayaddtothecountrate.Attemptstodetermine thehalf-life oftheactivityinthesampleisdifficult becauseofthelowcountingratesinvolved.

vII"4H4rh3-1'~1l)+tPIhl During1988,nosamplesindicated positiveactivitythatexceededtheLLDfortheanalysis.

Theannualdosetothethyroidofaninfantwhichcouldresultfromthemeasuredplantreleaserate,wascalculated bythemethoddescribed intheOffsiteDoseCalculation Manual.Themaximumresultant annualthyroiddosefor1988wouldbe0.007mremusingthecow-milk-infant pathway.Theannualaverageplantreleaserateduringthegrazingseasonwouldgiveaconcentration

=of<0.005pCi/liter ofIodine-131 inmilk,whichisbelowtheLLDforthisanalysis.

LAKEONTARIOFISHFishcaughtnearthedischarge canaloutfallwerefilleted, andcountedforgammaemittingisotopes.

Acomparison todataforfishcaught15milesandmoreawayfromtheplantshowsnoindication ofplantinfluence sinceneithercobalt-60 orcesium-134weredetected.

Somesamplesofbothindicator andbackground fishhaddetectable amountsofcesium-137.

IsotopicGammaConcentrations

-(pCi/wet-kilogram),

are..listed.'in TableXI.Asampleofalgae(cladophora) andofthesandwasobtainedfromthelakebottominthedischarge plumearea.ResultsofthegammascansareincludedinTableXI.Cesium-137 wasdetectedinlakebottomsample,buttheabsenceofcesium-134 andcobalt-60 indicates thecesium-137 isprobablydue-tofallout.Thelakebottomismainlyrockwithveryinfrequent smallquantities ofsand.Thismakeslakebottomsamplingextremely difficult.

OTHERSAMPLESAdditional samplesrepresenting vegetation andfruitweretakenandanalyzedforgammaemittingisotopes.

TheresultsforthesesamplesarelistedinTableXIB.LANDUSECENSUSAlandusecensuswasdonetodetermine changesintheuseofthelandwithin5milesoftheplant.Therewerenomajorchangesintheuseofthelandwithmostremaining agricultural.

Therewereseveralprivatehomesconstructed, butnonewhousingdevelopments orlargebusinessconstruction projects.

Thethreedairyoperations continued withanaverageof40to70milkingcows.Therewerenogoatsusedformilkonaregularbasiswithinthe5mileradius.Therewasanincreaseincattleraisedforbeef.

IIt60 EPAINTERLABORATORY COMPARISON STUDYAnindication ofthelaboratory's abilitytoanalyzesamplesandachieveresults'consistent withotherlaboratories istheaimoftheEPAInterlaboratory Comparison.

Selectedunknownsarereceivedandanalyzedbyourprocedures andtheresultsaresenttotheEPAEnvironmental Monitoring SystemsLaboratory.

Areportisreturnedfromthemindicating theconcentrations withwhichthesampleswerespikedandhowwecomparedtootherlaboratories analyzing thesamesamples.TableXIIIisatabulation ofthesamplesanalyzedduring1988.DEVIATIONS TOTHESAMPLINGPROGRAMDeviations tothesamplingprogramarepermitted whensamplesarenotobtainable duetohazardous conditions, seasonalavailability ortomalfunctioning ofautomatic samplingequipment.

Samplesthatwerenotavailable duetomalfunctioning ofautomatic samplingornotavailable foraspecificreasonarenotedondatatablepages.

Pg'.kt RESULTSNOTMEETINGTHEMAXIMUMLLDI'"-'hemaximum'LLD valuesasdefined.byTechSpecsare:A~nalsisWater~ColAirborneParticulate orGas~clm3~FoodFishParticulate (pCi/kg,Milk(pCi/kg,sgrossbeta4a1x1023H54Mn59Fe58,60Co65Zn>5Zr-Nb131I134<137Cs 140ga-La2000(1000

)1530153015b15(10a),18 15b7x10-21x10-21302601302601301515b6060a.LLDfordrinkingwaterb.Totalforparentanddaughter w1gJ The'following samplesexceededthemaximum.LLDforiodineasspecified inTechSpecsandarereportedhereasrequired.

~~.Sample:ReasonWaterAugustCircOutMilkSmallchemicalyieldofl94gaveavaluehigherthantherequiredLLD.OctoberllFarmBSmallchemicalyieldofl84gaveavaluehigherthantherequiredLLD.

t'-P++bl IiPAIR%AYSAMIPIZX)

ROCH1HTER GASANDZXZCZRICCORPORATION ENVIENMENTAL RADIOIOGICAL MONZIORING PROGRAMSURGERYR.E.GINNANUCXZ'ARPOWERPIANTDOCKETNO.50-244NAYNE,NEÃYORKREPORTING PERIOD1988ITYPEAND~MI-)INDIGQQRIOCATIONS IIOCATIONNZIHHIGHESTANNUALMEANICONTROLIOCATIONS IM1MHEROFIID)MEAN(1)fNAMEfMEAN(1)MEAN(1)ANALYSESRANGEDISTANCEANDDIRECTION RANGERANGE(AIR:PARTICuuuZ (pCi/Cu.M.

)IODINE(GROSSHEZA610(0.003)0.018(354/354)

I0.002-0.040GAMMA,SCAN482<LLD2828II0.02-IGAMMASCAN2080.28<IID104104IONSITEIOCATION"13l0.018(52/52)IO014(257/257) 690M1940.005-0.0400.002-0.039<IID2020I<LID104104IDIRECTRADIATION:

(3)iTZD(GAMMA16.1(12.9(84/8414.4-18.310.0-18.5156I0.08I14.2(68/6811.0-18.3ONSITEIOCATION200M185III)I¹5)I~~:DRINKING(pCi/LITER)

IGROSSHEZA.76)12l272(76/76)I1.23-4.57INELL~LB640M150(3.45(12/12)1.91-4.57IGAMMA,SCAN49I(2)IRa22624(1/49)INELLB14-34640M150IODINE360.24<IID3636(25(12/12)14-34(pCi/LITER)

)GROSSHEZA165)1.2]2.15(114/114)

I1.25-6.88IGAMMASCAN43I(2)IIODINE450.24<LLD3333[DEERCXKEZ200M135(2.88(12/12)I2~32(51/51)1.76-5.161.35-5.62I<LLD(12/12)<IID1212ALLIGROSSHEZA60I1.2l4.91(24/24)ida1.54-9.95(STATION¹5200M185[5.12(12/12)[5.43(36/36)1.54-8.711.37-19.03/MILK:(pCi/~)/FISH:lmXZTATION:

1/IODINE56/0.24/<IID(38/38)IGAMMA,SCAN582<IID3838IGAMMA.SCAN16J(2)iCs-13741(6/8)IDISCHAEKE PUJME22-110[GAMMASCAN7[(2)[<LID(5/5)I<LID(18/18)<IID1818140(5/8)30-66]<IID(2/2)(1)Meanandrangebasedondetectable measurements only.Fractionofdetectable measurements atspecified locations inparentheses.

(3)Onedirectradiation locationhasbeendeletedfmmthissuaunarysinceitwasaffectedbythecontaminated equipment storagelocation50metersaway.Gheaveragereadingatthislocationis35~Quarter.

I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRANNumberofSamlesandSamleLocatonsSamlinandCollection FreuencTeandFreuencofAnalss1.AIROORHEa.Radioiodine 2indicator 2controlContinuous operation Radioiodine canister.

ofsamplerwithsampleAnalyzewithin7dayscollection atleastofcol?ection of1-131.onceper10days.b.Particulates 2.DIRECTBADIATIOH 7indicator 5control10indicator 10control11placedgreaterthan5milesfromplantsiteSameasabove.TLDsat.leastquarterly.

Particulate sampler.Analyzeforgrossbetaradioactivity

>24hoursfollowing filterchange.Performgammaisotopicanalysisoneachsampleforwhichgrossbetaactivityis10timesthemeanofoffsitesamples.Performgammaisotopicanalysisoncomposite (bylocation) sampleatleastonceper92days.Gammadosequarterly.

RADIOLOGICAL ENVIRONMENTAL MONITORING PRORAMExposurePath~wa1NumberofSamlesandSamleLocatonsSamlinandCollecLion FreuencTeandFreuencofAnalsos3.WATERBORNE a.Surfaceb.Drinking~~1control(RussellStation)1indicator.

(Condenser MaterDischarge)

.1indicator (OntarioWaterDistrictIntake)Composite*

samplecol>>lectedoveraperiodof<31days.Sameasabove.Grossbetaandgammaisotopicanalysisofeachcomposite sample.Tritiumanalysisofonecomposite sampleatleastonceper92days.Sameasabove.*Compo~ate sampletobecollected bycollecting analiquotatintervals notexceeding 2hours.

.RADIOLOGICAL ENVIRONMENTAL NONITORINC PBOGRAHE~xoao>~ePatlwa~aodora~acle4.INCESTIOH NumberofSamlesandSamleLocatonsSamlinandCollection FreuencofAnalsosa.r>ilk'control3indicator JunethruOctobereachof3farmsAtleastonceper15days.GammaisotopicandI-131analysisofeachsample.-1control1indicator.,

NovemberthruHayoneofthefarmsAt'eastonceper31"'Gammaisotopicanddays.I-131analysisofeachsample.b.Fishc.FoodProducts4control4indicator (OffshoreatGinna)1control2ipdicator (Onsite)Miceduringfishingseasonincluding atleastfourspecies.Annualattimeofharvest.Samplefrom'woofthefolloMing:

1.apples2.cherriesGammaisotopicanalysisonedibleportionsofeachsample..Gammaisotopicanalysisonedibleportionofsample.1control2indicator (Onsitegardenornearestoffsitegardenwithin5milesinthehighestD/Qmeteorological sector)Attimeofharvest.Onesampleof:1.browedleafvegetation 2.othervegetable Gammaisotopicanalysisonedibleportionsofeychsample.

~~~~II~~gQaggj]~IQi,4sI' Ilp45f1)4p\

NLhKEOHThRIO~$10$~~!~JQstyralmfiIOI o'P6It7klI'-~.20~~We++~eI1lgOHSITEhIRHOHITORPOST-hCCIDEHI'LD

(.~f U~'

.WaterLAKEQNTARIPlOHlLES,'.I5HiL'F:8---....

ICretcontSIctl~~2I5MtLE~I~qoltWEST1(VterWZl.lafibrild4%llSOnSONNQSOU~(egt'IO~'PNFLWOe~0ghtoSgltCTPnfieldOP'g'C$0XOtal/'t.rr "fsU LA6CasusLKL.wuuQ,+~~4$ss>~KRONA'tlat 6t.AREASiCo%+7-<B.bs

+LullcH/Kbo4=9~MILE.SoooOooo044OOOOOOOoooooo404O800~4%%od0~t~:.LAhI,,:t,I~t0II-tR~%000~05t~QoL$<~JE8~osN:::Rp".'

~~~~I~It~t~\~~%~04~Ooh~000044OOht00VOJ~~44OoottOO444IL'I~t'.r~~t~~~~~~~~%t~SEaEELRo.\%~~%~~\~%~~'l.~h,0:'///I-IJJbCV)CO'\~VLASA%A"Eh%4tz%~C.'lJhl~J~'IGa.Ccu9%STATERD.OC3EJZCLE TABLEICE-9:3SectorESESESSESSWSWWSWDistancetoNearest.Residence Ip,Ro~~vs+50SQQ400lilooQhQOODistancetoNearestGardenlangdac5too<DistancetoMilkProducing AnimalsMaoe,dwv~spyChangesfrompreviousyear:,Milkanimallocations:

hC)KQ.~fe((KlO~+MSLandUseCensusCompleted By:Date:4<i~ha~sa IC TABLE19880;IS'.TA.Rt;OIIETOIIS GROSSBETAANALYSESRESULTSItlOC>Cu.M.UEEHOFSTATIOtl2STATIOtl3sTATIotl4STATIOrl5STATION6STATION?STATION13AVE.JAH.JAH.Jhtl~JAtr.JAH.FEB'EB.FEB.FEB.IIARCHMARCHtIARCHtfARCHAPRILAPRILAPRILAPRILAPRILHAYtIAYtIAYtfAYJUHEJUHE'JUNEJUNEI81522295194If18I81522296132P273-JAtl.-JAH.JAtl.-JAtl.-FEB.-FEB'FEB.-FEB.-tfARCH-MARCH-MARCH-MARCH-APRIL-APRIL-APRIL-APRIL-APRIL-MAY-MAY-MAY-MAY-JUHE-JUHEIQ-JUHE17-JUNE24-JULY815222951219264111825I815296132P273.Ip17?4P.Qf9io.002P.0294D.OQ3 Q.Q17+Q.QQ3 Q.pf?>D.003 Q.Q18+D.QQ3 Q.D230D.QQ3 Q.Q17+Q.QQ3 Q.Q16+D.OQ3 Q.019+V.QQ3 P.OI64D.OQ3 Q.off>D.QQ3 0.018ra.a03 Q.ef2~D.QQ3Q.PIP%V.PQ3 Q.QI3>D.QQ3 p.ef3>D.QQ3 P.QI4ip.p03 Q.VIVID.QQ3

.e.ef4~D.QQ3 Q.QQ7+D.QQ2 Q.DI540.QD3 D.Q2IOD.OQ2 Q.QI4>D.QQ3 D,P22~D.OD4 Q.Q29~D.QQ4 P.QQ?+D.OQ3 Q.Q204D.QD2 O.Q28+D.002 Q.pf6>D.QD2(a)0'IBtp.po2 0.020+V.OO2 0.02D+Q.OQ2 Q.QI6~D.PQ2 puef5+D.QQ20.015>D.Q02 Q.QI24D.002 0.023+0.002 O.p'IfKD.002 Q.PI4%D.QO2 O.Q12+Q.QQ2 Q.Q12+Q.Q02 Q.QI2>D.QO2 Q.QQ9+D.QQ2 D.pf44D.OQ2Q.QQ8ip.eo2 Q.Q13~D.Q02 Q.Q26+D.QO3 Q.QI34D.QQ2 Q.QI6>D;D02 0.025+V.QQ3 Q.QQ94D.DQI e.ef9~D~QefD.02?IQ.QQ2Q.QI8+Q.QQ2 Q.Q18+Q.QQ2 Q.PI?~O.PD2 D.024+0.QQ2 Q.QI94O.QQ2 Q.Q13+D.QQI Q.QI4+D.QQ2 P.QI4<O.QP2 O.PIIIp.epfp.pf?~Q.DQ2 0.012+0.003 P.Q12to.epf Q.Q13>Q.QQ2 P.OI34O.P02 0.011+0.QQ2 Q~Qfoio.ppf Q.QI34O.QQ2 P.PP?4D.PPI Q.QII4Q.QQ2 Q.025+0~QQ2P.Qfele.PQ2e.ef8>Q.QQ2 Q.02400.QQ2 Q.QQBIQ.OpIQ.QI9~e.epf Q.O28>P.QQ2 e.ef6>Q.Q02P.Q2I<V.QQ2Q.Q18+O.QQ2 Q.Q22<D.QQ3 Q.Q2P+D.PQ2 P.OI4+Q.ppf Q.efn+D.'Qpf 0'14+V.OQ2 0.010+0.QQ1 0.0'I8la.002Q.010+0.PQ2 Q.OI24o.pef P.QIPIO.PDI e.ofp~o.pof Q~QIego.001Q.OP9%D.QQI e.of3io.pp2 Q.QQ9rp.ppf Q.012+0.QQ2 Q.018+V.QO2 Q.QI44D.QD2 Q.QI94Q.QQ2 O.Q24+Q.PQ2 Q.PPBKP.QQI O.ef94D.QO2Q.Q28+0.002 O.QI3~Q.QQ2 D.PI940.002 0.019+0.002 O.Q22+O.QO2 0.02Q+0.002 0.014+0.QO2 Q.ofeto.pof D.DI5~0.002 Q.off>O.QQ2 D.of?WD.OD2 0.013~0.002 D.Q13>0.002 0'1200.QD2 Q.Q1270.002 0.012+Q.OQ2 O.PQ240.002 Q.DI5>O.OP2 0.007+D.QQ2 0.01240.002 Q~037+0.003 P~Df3ID.OO2Q.pf?ND.PO2 0.026%V.PO2 O.QQ9IO.QO2 0.021+Q.002

-0.028+0.002 0.015+V.002 O.of9+o.oa20.019+Q.002 0.023+D.002-0.O20+D.OO2 0.015+Q.002 0.014+Q.OQ2 0.015+0.002 0.Q10+0.002O.af6>0.0020.011+0.003 O.Q14+Q.OO2 O.afOtp.0020.01240.002 0012le.0020.009+V.002 0.014+0.002 0.008+0.002 0.012+0.002 0.028+0.003 O.OI0+Q.002o.o2o+o.oa2 0.024+Q.002 0.012+0.002 0.021+V.002 0.033+D.002 0.020+Q.Q02 0.023+0.002 0.021+0.002 0.029+Q.Q03 0.024+0.002 0.010+Q.001 0.018+0.002 0.019>0.002 0.010+0.002 0.018+Q.002 0.016+0.002 0.014~0.0Q2 0.009+0.Q02 0.018+0.002 0.010+0.001 0.013+Q.002 0.019+Q.002 0.01240.002 O.afn<Q.Q020.030>0.002 o.ano+o.oo5 0.015~0.001 0.021+0.002 0.005I0.0010.0200.0290.0160.0200.019.0.023'.020 0.0140.0150.0150.01'.0.0170.0120.013a.0110.0130.012Q.a'I00.0150.0000.O'130.0260.0'l2Q.O180.025O.OQBHAXIMUM.AVERAGEIIIHIMUMP.029+V.003 P.Q16Q.OQ7+Q.QQ2 o.o28+e.oo2 Q.Q16Q.DQBID.QO2 0.027+0.002 Q.Q15p.ep?&o.eef O.Q28~D.OQ2 Q.QI5Q.OOB+O.QQI 0.03?+D.OQ3 P.Q16o.oa'.e.ao20.028+V.002 0.016O.OQO+0.002 0.040+Q.005 0~019o.ao5+o.oaf (a)UtlITOUTOFSERVICE(b)FILTERTORHOROFFCEHTEREB

TABLI!IIA1988Ot!SITEAIRtl0t!ITORS

!iROSSBETAAt!ALYSES RESULTSItlpC.:CL'.tI.MEE!(OFSTATIOH?STATIOH3STATInrtSSTATIOH5STATION6STATIOH7STATIOH13AVE.JULYJULYJULYJULYJULYAUG'UG.AUG.AUG.SEPT.SEPT.SEPT.SEPT.SEPT.OCT.aCT.ACT.OCT.HOV.HOV.HOV.tlo"DEC.DEC.DEC.DEC.815???95I?I'929162330714?I?841118?5!6?3JULYJULYJULYJULYAUG.AUG.AUG.AUG.SEPT~SEPT.SEPT.SEPT.SEPT.OCT.OCT.OCT~OCT.HOV.HOV.HOV.HOVEDEC~DEC.DEC.DEC.DEC.8152219C111926?16233021421281118251916233QQ.0234D.0040.031+Q.PO4 Q.P254D.004 p.p?04e.pp4 e.p30+Q.QQ5 Q.Q3I+e.oeg 0.03140.005 Q.pl?4Q.PO4 Q.Q194e.op5 e.p2Q4Q.QQ5 Q.QI?IQ.QQ4 Q.QQ3>0.003 o.p!44e.oe5 Q.Q2Q,4Q~QQ5O.P144Q.PO5 O.P244Q.PO5 Q.pl54e.pp5P.P174Q.PQ5 (a)(a)(a)Q.ol?4Q.QQ4 P.P234Q.PP20.0244Q.QP2 0.02240.PP2 Q.Q2?4'Q2 P.Q224D.P03 P.Q334D.QP3 0.0214Q.OO?

P.e?24Q.QP?

0.0274Q.QQ3 0.0314Q.PP3 Q.P254P.OP3 O.P164P.PO2 0.01?+e.pp?

0.0194Q.PP3 P.O164Q.OQ?

0.0094e.po2 Q.Q154e.pp?

0.0194Q.PO3 O.Q134Q.PO2 0.0244e.oo3 O.QI04D.PP?

P.e?04Q.PP3 0'14+Q.eo?

0.0144e.oo3 0.0054e.po2 0~0264e.po3 O.0164e.OP3O.e?74Q.PP30.0234P.PO3 P.Q264Q.QQ3 P.o?040.002 Q.e840~ep2Q.p?04e.pp2 e.e?Qle.eo?

0n184QPn1Q.o?4te.oe?

e.o?54o.eo Q.013+0.002 P.01540.00?

P.o!9+P.eo?

P.o!9+0F002O.P124e.ool Q.QI5ie.po?

Q.ol?4P.QO2 0.0144Q.QP2 O.e?34P.OO2 0.013+0.QQ2 0.022+Q.eo?

0.01540.QP?Q.019+0.PO2 O.oil4Q.QO20.02340.PP?

P.Q?54Q.PQ2

'Q.o?9+P.QP2 O.o?440.QP2Q.Q?3>e.pp?

Q.p?840.003 P.o??:P.PP2 P.o?04Q.QO?

O.o?14P.QP?

p.p?64pnp?0.025+0.QQ2 e.023+0.pp?

Q.01440.002

+.QI6~e.po?

0.0184D.PP20.0144P,PP2 P.e?24P.PP?

0.0154D.eo?Q.QI?40.002 P.OP9+0.002 0.012+0.002 0.01240,002 P.OI?io.ee?

0.01440.QO?

Q.o!6+0.002 Q.QIQ4o.oo?

o.o??4o.pe.

Q.o?540.oo?0~02540.00?

P.P18+P.PP2 P.P?34epee?O.P194D.OO2 0.03140.003 0.02140.002 Q~Q214D.PP2 0.02640.003 0.025+0.003 Q.O274D.003 0.012+0.QP2 0.01740.ep2 0.0184Q.OP2 D.e!9+P.OP2 0.0284e.po3 0.014+P.po?

0.017+D.PO2 0.0134P.PO2 0.02240.002 O.Q134Q~PQ20.0184Q.QQ?

0.014+0.OO2 0.018+D.QQ2 0.009+D.OO2 0.024+0.002 0.02240,002 0.026+Q.QO2 0.0214Q.PQ2 Q.e?34Q.PO2 0.019+Q.QQ2 0.030+0.002 0.02840.006 O.021+O.O02 0.01940.003 0'25+0.002 0.025+0.002 0.011+0.002 0.01640.0030.016+0.002 0.01?+0.002 Q.01640.0020.01440.002 0.016+0.003 0.01540.002 0.021+0.002 0.0134Q.OP2 0.015+0.003 0.015+0.002 0.0'15+0.002 0.009+0.002 0.02240.002 0.025+P.002 0.023+D.002 0.020+P.O02 0.021+P.Q02 0.01840.002 0.02440.002 0.016+0.002 0.01940.002 0.027+0.002 0.02040.002 0.021+0.002 0.013+0.OP?

0.011+0.002 0.01540.002 0.01740.002 0.018+0.002 0.015+0.002 0.0144D.O02 0.013+0.002 0.018+0.002 0.01140.001 0.015+0.002 0.010+Q.001 0.01640.002 0.00940.002 0.022+0.002 0.02340.002 0.022+0.002 0.0224D.002 0.01940.002

.0.0210.0290.0220.0210.0280.0260.0250.0130.0160.0180.016Q.P190.0150~0170.0130P220.012,0.0180.014Q.016Q.0090.02?0.0240.0250.021PP21tIAXIIIUtt AVERAGEt!IHIHUtlQ.031le.0040,n?QQ.QP34Q.PP30.03340.003 n?pO.pp4P.PQ?0.029+P.QP2 Q.o"0P.p!140.PQ2 0.0284Q.QQ3 Q.OI9Q.OO9+O.ee?

00314Q.003 n.o?Qe.p094Q.QQ2 0.030+0.QO?

0.0190.0094Q.002 0.02?+0.002 0.0170.099+0.00?

',.)UHITOUTOFSERVICEFILTERTORHOROFFCEHTERED TABLEIIt1988OF!SITEAIRHOHITORSGRO'=SBCTAAt<<ALYSES RESULTSIt>oL'tCU-tl.UEE!lOFSTATIOH8STATIOtt9STATTOtt10STATION118TATIOII12AVE.JAtl.1JAII.8JAII.15'Att.22IAR~29IER.5f<<ER.12fER.19fER.26IIARCH4IIARCH11I!ARCH18IIARCH25APRILAf'RIL8Af'RIL15APRIL22APRIL29t!AY6tlAY13tIAY20IIAY27JUHE3JUtlEI0JUtlE!."JUIIE24JAtl.8JAtl.15JAtl.22JAW.29FEB.5FEB.12FER.19FEB'6ttARCHMARCH11MARCH18MARCH25APRILIAPRIL8APRIL15APRIL22APRIL29MAY6tlAY13MAY2QMAY27J0tlE3JUHE1QJUtlEJLltlc'<<4JULY0.018<<Q.QQI 0.023<<Q.QQ2 (b)Q.Q17<<Q.QQ2 Q.QIS<<Q.QQ2 Q.Q?1<<Q.QQ2 0.0164Q.QOI 0.014<<0'.Q02 Q.014+0.002 Q.Q17<<Q.QQ2 Q.QIQ<<Q.QQI Q.Q17<<Q.QQ2 0.014<<Q.OQ2 Q.QI9<<Q.QO2 Q.QQ9<<Q,QOI Q.Q14<<Q.QQ2 0.012<<Q.QQ2 0.012<<Q.QQ2 0F016<<Q.QQ2 (a)Q.Q12<<0.002 Q.Q26<<Q.QQ2 0.011<<Q.QQ2 Q.Q20<<Q.QQ2 Q.Q22<<Q.QQ2 Q.Q13<<Q.QQ2 Q.Q19<<Q.nQ2 0.026<<Q.QQ2 0.017<<Q.QQ2 Q.Q19<<Q.QQ2 Q.Q16+Q.QQ2 Q023<<Q.QQ2 0.018+0.QQ2 Q.Q15<<Q.QQ2 0.013<<Q.QQ2 Q.015<<O.Q02 0.011<<Q.OQ2 Q.O17+Q.QQ2 (b~Q.OI5IQ.OQ2 0F010<<Q.QQ2 Q.O13<<,Q.QQ2 0.012>Q.QQ2 Q.Q13+Q.QQ2 Q.QIR<<Q.QQ2 Q.QQ6<<Q.QQI Q.Q13<<Q.QQ2 Q.Q26~Q.QQ2 Q.Q12<<Q.QQ2 0.020+Q.QQ2 Q.Q25<Q.QO2 QQIQ<<nQQ2Q.O21<<Q.QQ2Q.Q33<<Q.QQ3 0.017<<Q.QQ3 0'ie<<QQQ3O.Q16<<O.QQ3 Q.025<<,Q.QQ3Q.022<<O.QQ3 Q.Q15<<Q.QQ3 Q.Q!5<<Q.QQ3 Q.QI6iQ.QQ2 Q.OQ8<Q.QQ2 0.014>0.003 Q.OI5>Q.QQ3 O.Q15<<OQn3Q.OQ94.0.003 Q.013+0.QQ3

-Q.QI3<<Q.QQ3 Q.Q15<<Q.QQ3 e.e26<<Q.QQ4 Q.014+0.QQ3 Q.Q13<<Q.QO3 Q.Q31<<Q.QQ3 Q.QII<<Q.QQ3 Q.021<0.QQ3 nn21<<QQQ30.015<<Q.QQ3 P0.019<<0.002 0.028i0.003 0.01440.003 Q.019~0.003 0.018~0.003 Q~024<<0.003 0.016<<0.002 O.QI3t0.003 Q.O15<<0.003 Q.OI4<<OS0030.012<<Q.O03 0.014w0.003 0.013+0.003 Q.0t310.0120.006<<0.003 0.011<<0.003 0.012+0.003 Q.O14<<0.003 Q.QI7i0.003 0.026+0.004 Q.QI6t0.003 Q.013+0.002 Q.015+0.004 Q.021+0.004 Q.026+0.004 O.nI2<<Q.Q03 0.01'?<<0.001 O.027+0.002 Q.Q10i0.002 0.01?<<Q.Q03 0.010i0.002 0.024+0.002 0.019+0.002 0.012+0.00'I 0.015+0.002 O.015+0.0020.010<<0.OOI0.015+0.O02 0.013+Q.002 0.002<<Q.OI5 0.000+0.001 0.013+0.002 0.01240.002 O.Q11+0.002 O.QI7+Q.QQ2 0.014+0.QQ2 0.007<<0.002 0.026+0.002 0.012+Q.0020.017+0.O02 0.022+0.002 0.009+0.002 0.0190.027Q.0130.0190.01?0.0230.0180.0'I40.0140.015O.0100.0150.014Q.OOO0.0080.0130.0120.013O.0100.0150.0120.0270.0120.0200.024O.012-tltiXIMUMAVERAGEtiIH'MUMQ.026<<Q.Q02 0.016Q.QQ9<<Q.QQ1 0.026<<Q.OQ2Q.Q16Q.QQ6<<Q.QQI 0.033<<Q.O03Q.QI7Q.QQ8<<Q.QQ2 0.020+0.003 Q.016O.006<<Q.OQ30.027+0.002 0.015O.Q02<<0.015!-.-.iUUIT0<<JTOFSERVtCEcILTEPTnr,;InRn,"FCE<<ITEREIi vA'Oii:v<<ti<<38OtfSITEO'Ptl<<<<ilITT<<PS

""at'8"zT'O'AAtt"iLvS"-

RES'JETSI!1DC.'CU.."..UCEViSTATIgtt8STATIOttSTATIOtt$0STATIOtt$1STATIOtl12AVE.JULYJULYJULY.$ULYJULYaAUG.hUG.s"iUG.nUG.SEPT.iEPvSEPT.SEPT.SEPT.lTCT.ilCT.OCT.EtcT.tNV.1$0"$$0Vttg'!.ltEC.t)EC.IlEC.DEC.181522?9C1219?61916?330?1428411182516?3JULY8JULY$5JULY22JULY29AUG.5AUG.12AUG.19AUG.?6SEPT.?SEPT.SEPT.16SEPT~23SEPT.30OCT.?OCT.OCT.21OCT."8ttOV.tieV.11t!OV.18tlOV.259EC.29EC.'?9EC.16OEC.239EC.300.021<<0.002 0.025<<0.002 0.01?<<0.002 0.0?0+0.002 0.03$<<e.gg?0'22+0.002 0'25+0.002 (a>0.013<<0.002 0.015<<Q.002 0.017+0.QQ2 0.019+0.O02 0.01?<<e.o02 0.0$6<<O.QQ20.013<<0.002Q.e?5<<e.eo?

0.01?i'02 0.018<<g.ee2 0.012<<0.002 Q.Q18<<0.002 0.0$1<<e.oe20.024ig.002 0.025+0.ee?

0.031+0.002 0.025i0.0020.021<<O.Q02 Q.e?1<<e.ge?

0~029+0~On?0.0$6<<0.002Q.g?$<<e.oe?0.025<<0.002 0.024+0.002 0.024<<0.002 0.014+0.002 0.01ie.ne?.0.016ie.e03 0.018ie.002 e.019<<o.eo n.0$4<<0.0020.016<<0.002 0.016<<0.002 Q.g?3>0.003 0.0$3<<0.0020.020<<g.ee?

0.012<<0.002 0.019<<O.002 0.012+9.002 0.028<<e.002 0.029<<0.003 0.025ig.ee?

0.0-?ig.eg'2 Q.O21ie.ee2 0.022<<0.003 0.030<<e.eg3 O.gl?<<0.003 0.025<<0.003 0.034<<0.003 0.024<<0.003 0.029<<0.003 O.g<<8<<0.003 0.018<<0.003 O.015iO.0/30.019<<0.003 0h'7<<<<Qhg>0.01?<<0.003 0.018<<e.eg3 O.el?<<0.003 0.023<<0.003

-0.013ie.oo3 n0$9<<Q.QO30.012<<e.ee3 00?n<<0.003 Q.gle<<0.003 0.026<<0.003 002?ig.ng?

O.Q27<<0.002 Q.e?4<<Q.002, 0.022i0.002 0.021+0.0040.031+0.004 0.018<<0.004 0.028<<0.004 0.039<<0.005 0.025>0.005 0.030i0.005 0.0$?<0.0050.01440.005 0.016<0.005 0.0$5<<.0.0050.021<<0.005 0.0$?<<0.0050.012<<0.005 0.015<<0.005 0.020<<0.005 0.014ieF0050.0?oio.o06 0.01$<<0.0050.0?eig.007 0.006>0.006 Q.e?o<<e.oo6 0.018+0.006 Q.e?5<<0.0060.029ig~0060.019ig.aa4 0.0$9ie.002a.026+0.og?

0.0$s+0.0030029yg002 0.03040.002 0.02240.002 0.022<<0.002 o.el?ie.ea?

0.014+0.002 0.016+0.002 0.016+g.0020.021+0.002a.017+0.002 0.017<<0.0020.014+0.0020F022>e.ao?

0'13+9.002 0.017+0.002 0.01~+0.0020.018+0.002 0.011+0.002 0.025+0.002 0.025ie.ga20.027<<e.og2 0.023+0.002 0.037<<9.003 0.02$0.0200.0$70.0230.0320.023Q0250.0150.0140.0160.0170.0200.0160.0$60.015O.0230.0130.019O.0120.0190.010a.0250.0250.0270.0250.021tlAXItlUtl iYVERAGEttlttItiUtt 0.03$<<0.002OneO.gll<<(.002 0.029<0.002 0.020Q.gt2ie.ge2 0.03'1<<0.003Qn<<0.0$Q<<0.0030.0<<9+0.005070..006.<<0.006 0.037+0.003 00200.0$$<Q.oe?UNITOUTOr5.'r'!ICE IILT.'.TORt!OR0"-IGEttTERE9

ONSITEAIRMONITORSGROSSBETAANALYSISR.E.8INNAPOWERSTATIONpCi/cuMETER0.0350.030.0250.020.0150.010.00503579111315171921232527293133353739414345474951 WEEKNUMBER~1988~1987

OFFSITEAIRMONITORSGROSSBETAANALYSISR.E.GINNAPOWERSTATIONpCi/cuMETER0.0350.030.0250.020.0150.010.005013579111315171921232527293133353739414345474951 WEEKNUMBER~1988~1987 U

ANNUALTRENDINGOFAIRACTIVITYGROSSBETAANALYSISFOR1968-1988R.E.GINNAPOWERSTATIONpCi/cuMETER0.350.30.250.20.150.10.050686970717273?47576777879808182838485868788YEAR~ONSITEMONITORS~OFFSITEMONITORSPEAKSAREINDICATIVE OFNUCLEARDETONATIONS INTHEATMOSPHERE.

TABLEIIIA13WeekCarrposite AirFilterGarrmaIsotopicAnalysisResultsinpCi/m3LOCATIONFIRSTOVARIERhfRflltERSt411ONI"AIRflLtERSTATIONI3ATRFILIER$141IONI1AIRFILTERS14IIONISATRfILIERSTATIONI6AIRFILTER$14IIONI7AIRFILIERST41IONI8AIRfILIERSTAIIOKI9AIRfllTERSI4110NIl0AIRfllTERSIA'IION111AIRFILTERSf411ONII2AIRflltERSIAIIONII37IEf40>'>2I"5>16145>12145>11122>15Il'5>16150>12145>16120>2495>"592>1495>1540<O.oee<O.oed<0.001<0.001<O.oed<0.001<0.001.<O.OII<0.007<0.018(0.001<0'0551CR(0Ot'><0.0$5(0.DID(0.010(0.060<0.019(0.019<0.057(0.090<0.110<O.OIO<0.070515'7$8NKFECo(0.002<D.IDB(0.0030.002<0.107<0~002O.ool<0105<0~002<O.oel<D.ees<0.002<0.001<0.007<0.002<0eel<0ODSCo.ooi<0.001(0.00$<0.002(0.001<0~Iod<0~002(D.OO2(0.009<0~001<0.002<0.110<0.001<0.001<0.Ied<0.002<o.eof<o.Oof(o.eo60CO(0.003<0.002'0.002(0.002<0.002<0.003(0.003<0.001(0.002<0.003<0.001(0.0026$ZN<D.O05<0.003<0.00<0.002<0.003<0.002<0.002<0.003<0.004<0.005inOO3<0.005ZR:0.006(0.005<0.003(0.003<O.OO1<0.003<0.003<0.001(0.007<0.007<0.004<I905~n.ood<b.oOI{0.003<0.003<0.00$<0.004<0.001<0.004<0.007<O.not<0.005<0.005103RO<0.00$<0.004<0.003<0.003<0.001<0.003<0.003(0.004<0.006<0.007<0.004<0,001IodRU<0.018<0.013<0.009<0.109<O.I12<0.109<0.009<0F010<0.016<0.018<O.I09<0'12134CS<0~DI2<o.oet(0.001<0.001'0.011<o.oet<0.001co.oef<o.oez<0.002<0.001<osoet137CS<0.002<0.002<0.001<0.001<0.002(0.00$(0.001<0.001<0.003<0.002<0.001<Oe002IID84(0.180<0.150<O.IIO<0.11$<0.175<0.175;0.175<0.20$(0.33$<0.11$<0.2$0(0F29511$CE(0.009<0.007<0.005<0.OOS(0.007<0.Ood<O.ond<o.no7<0.011C0.013(0.007{0.008<0.012(0.009<O.end<0.006<0.009<0.006(O.nnd<0.007(0.011<0.012<0.007<0008LOCAttONSECONDOUIRtERAIRFILIERST4TtONI2AIRFILTERS1411ONI3AIRFILIERSTATION~IhlRflllERSTAIIONI5nlRFILTERSTATIONIdntRftltERsthtroNI:AIRFtltERSIAltONIIntRFILTERSthttoNI9AIRfILIERslAIIONItoAIRfllTFRSTATIONlfIAIRftltERS14TIONII2AIRFILIERSTAIIONI137IE124>16142>151$8>12III>121~>18:0'1>15II>I'15>15135>30f42>&10!>15150>1810(0.009<O.DOS<0.001;O.DD3(0.006O.DIS(0.001C0.001coOe~ce.oe8(0.044'D.oet<0.065'.0.041(0.033;,0.039<0.0$5'(0.051{0.038(0.013'0.082(0.09S0.01900'1NN<0.002<0.001(O.oel<0.001Ce.eel<D.eel<e.ool(0~001CO.OOZ.0.002!O.eel..O.eet59fE(0.009(0~IOS(0.001(0,001<O.eed(o.eed:D.eef(D.OOS(0.010:0.101!D.ced(D.eedQlCo(D.Dol(0.002'000$ce.ee2'.o.oo.'000~'.D.ee".;D.oo.;D.eel!0.001>>0'>ee+6nCo(0.00$(0.002~0.00$(0.003.D.OOZ(0.002~n.onf'0.003;0.002(0.003'nOn>,O.eof65ZNCo.oob(0.003<0.002<0.002<0.003<0.003(0.002<0.002<0.004.,<0.004<o.nnz<0.00395ZR<D.oed<0004<O.D03<0.003<0.005(0.004<0.003<0.001(0.006!0.00.<0.004(0~OD4t5NB<O.oed<0.001<D.003<0.003<0.005<0.004<0.003(0.001<0.007<0.008<0.001<0.0O4103RO<0.00$<0.003<0.002<0.003Ce.001,0.001{D.DD3CO~003<I~005<D.oed<I~003<0.001lnd.131137ROCSCS<0.0$9(D.OD2<D.002(0~012<0.001(0.001<0.009<0.001<0.001<0~eee(0.001<0.001<0.013<0~Oet<0.001<O.O12(D.DII(0.001(0.009:D.oet(0.001<D.elo<0.001(0.001<o.etdco.ooz<o.ooZ<0.0$8(0.002(0.002<0.009(0.001.<0.001<0F010(0.001<0F00111094<0.125<0.080:O.OOO(0.120'01$$<0.155(0120<0.110<0.275<0.330<0.180(0.200t41CEC0.008(oooS{0.004iooo5CD007<0.006>'0.005(0.005<0.010(0.011(0.006<0.006f44~CE{0.013<0.008'O.ood<0.005<n.009<0.008<O.oed(oood<0.011<0012<0.006<0.007

TABLEXIT.B13MeekCE3ttgosite AirFilterGamtaIsotopicAnalysisResultsinpCi/m5LOCATION'IttlRDQUARTERAIRflllfRST4110'II2AIRfILIER'14IION I3AIRflllfRSt4110NI4AIRflllERSIAtlottI5AIRFILTERSIAIIO!IIdAIRFILTERSTATIONI7AIRflllfRS14ltottI8AIRfILIERSTATIONI1AIRFILTERSTATIONIIQAIRfILIERSIAIIONIIIAIRFILTERSIAIION112AIRFILTERSTATIONIll7DC72)\I112115"73llI97190711291~1589>12114313983171041299311240K:0.010<0.00$<0.003<0.003<0.004(0.00$(0.003<0.003(0.006(0.011<0.003<0.002$1CR(0.074<0.0IICO.O28(0F031(0.047<0.0$8(0.037<0.03$<0.068(0.130(0.0$1(0.04154NN<0.002(0.001<0.001<0.001CO.ODI<0.001<0.001co.onl<D.QD2<D.DO3<0.001<0.00159fE<0.010(0.00$(0.404(0.001<0.00$<0.Qnd<o.oot(D.not<D.OD8<0.Ot4<O.OOS<0.00458Co(D.O04<0.002Cn.oelCn.onl<0.002<0Dn"(0.002<0.001<0.003<0.00$(0.002<0.00160CO(0.00"<0.003rn.ool!0.001<0.003<0.001<0.001<0.001(0.002(0.003(0.001(0.001652N<0.Ood<0.003<0.002<0.002<0.003'0003<0.002<0.002<0.004<0.006(0.002<0.00295r0.Oor'O.O04 (0.002<0.003<0.004r0.00$<0.003CD.O03(0.00$(0.009<0.003<0.00395<b.007<0.004<0.002<0.003(0.004<0.00$<0.003<D.003<0.00$<0.010<0.004<0.003103RU<o.ooe<D.003<0.002<0.002<0.003<0.004'0002<0.003<D.OOS<0.009<0.003<0.003106134137RUCSCS<0F023<D.OD2<0~Q02ro012<0001<0001<0.007<0.001<0.001<0F007<0.001(0.001<0~Oll<0.001<0.001<0.013<0.001<0.001<0.008<0.001<0.001<0.008<0.001<0.001<0.013<0.001(0.002<0.025<D.QD2<0.003<0.008<0.001(0F001<o.oo7<o.nol<o.oot14084<0.170<0.120<0~082<0~10$<0~15$<0.200<0.12$<0.120<0.240<0.600<0.2$5<0.205141CEre.olo<0.006<<0.004!O.OO4<0.006!0.007<0.005r0.005(0.009!0.017<O.nod<0.00$144CE<0.015<0.008<0.005<0.005<0007<0.00840.005<0.005<0.010<0.016(0.005!0.004LOC4TIONfOURTHQUARTERAIRFILTERSTATIONI2AIRFILTERSI41IONI3AIRflllfRSTAIIONI4AIRFlllER$141IONI5AIRFILTERSI4IIONI6AIRfILIERSTAIIottI7ATRfILIERSTATIONI8AIRflltfRSTATIONI9nlRfllTER$14110HII0AIRflltfRSTATIONIIIAIRflllERSTATION112ntRFlllfRSTATIONItl7DE4731569ltI741880itoME973~1081112"3>15138'071)In8338862i840K<0.007'.0.001roon'0.003(0.003(0.001ce002(0.001:n.oot(0.012rn.eel'c'e<<$1CR<0.048(0.034(0.019(0.023<0.026(0.030(0.022:O.O28;O.O38<0.100'0Ono'0nnt54Ntt<0.002CO.OOI<0.001(0.001<0.001<0.001<0.001<0.001<0.001rn.e03:o.oel'0.00159'$8ffCO<0.007<0.003<0.005<0.002<0.003(0.001(0.Q03(0.001(0.003(D.eol(0.404<0.001<0.003<O.oel(o.eot<0.001<0.00$(D.Q02<0.013<0.00$co.eotco.nnt'.n.e03:0.E")IdeCO!0.002<0.002!0.001cn.oot.O.eot(0.001ro.notco.no3<0.001!0.004rg.ent'0.00'I6$Ett<0.001(0.003<0.002<0.002(0.002<0.002(0.002<0.002<<0.003ro.o07r0.002ro.ne7<0.005<0.003<0.002<0.002ro00"C0.003<0.002co.no3r0.003<0.010rOoe3000103I0dHSRURU<0.005<0.004(0.016<0003r0.003<Q.olt<0.0020,002<0.006<0.002r0.002<0.007<0.002<O.O02(0.007<0.003re002(0009.0'.QO2CO.OO7<0.002rn002(0,009<o.en3<O.ott(D.DO8<Q~028!0.002rn.noo<o'.Qo2',o.oo7134137CSCS<O.OD2<O.OO2<0F001CO.OOI<0.001<0F001<0.001<0.001<D.DDI<0F001<O.ODI<O.OOI'0001(0001<0.001(0.001(0.001<0.001<0'D3<0.003(0.001<0.001(0.001(0.00114084Cn.100<0.074<0~010(0F017~,o.oe3<0.076<0.017Cn.ed3<0.094(0'55<0.073;O.ndt141CE<0.007<0.005~<0.003<0.003<0.004<0.004!0.003(0.004r0.00$!0.014<0.004<0.003144CC<0.011<0.007<0.004<0.005;0.005<0.006<0.004<O.ood<0.007<0.018<0.005<0.001 TABLEIVCHARCOALCARTRIDGES GAMIIAANALYSESFORIODIttERESULTSIHpCj/CU.M.QEEKOFSTA.H4STA.I7STA~tt9STA.HI1MEEtlOFSTAtt4STAH7STAH9STAtl11JAN.IJAN.8-JAH.15-JAN.22-JAH.29-FEB.5-FEB'2-FEB.19-FEB'6-MARCH4-tIARCH11tIARCH18-MARCH25-APRILIRPRIL8-APRIL15-APRIL22-APRIL29-MAY6-HAY13-tIAY20-tIAY27-JUHE3-JUHE10-JUHE17-JUt!E24JAH~8JAH.15JAH.22JAH.29FEB'FEB'2FEB.19FEB.26MARGH4MARCH11MARCH18MARCH25APRIL1,APRIL8APRIL15APRIL22APRIL29MAY6MAY13MAY20MAY27JUHE3JUttEI0JUHE17JUNE24JULYI<0.02<0.02<0.02<0.02<0.02<0.02<0.03<0'3<0.06<0.05<0.05<0.06<0.06<0.04<0.05<0.05<0.05<0.05<0.05<0.04<0.05<0.05<0'5<0.06'0F05<0.05<0.04<0.03<0.03<0.03<0.03<0.03<0.05<0.05<0.08(0.00<0.09<0.09<0.09<0.06<0.07<0.09<0.07<0.07<0.06<0.07<0.07<0.06<0'8<0F09<0F07<0.06<0.03<0.02<0'3<0.02<0.02<0'3<0.03<0.03<0.06<0.06<0.06<0.06<0.07<0.05<0.05'0.06<0.05<0.06<0.06<0.05<0.05<0.05<0.05<0.06<0F05<0.05<0F05<0.04<0.04<0.04<0.04<0.05.<0.06<0.04<0.12(0.11<0.13<0.13<O.12<0.09<0.11<0.11<0.10<0.10<O.11<0.13<0.11<0.12<0.12<0.13(O.12<0.13JULYJULYJULYJULY-AUG.AUG.AUG.AUG.AUG.SEPT.SEPT.SEPT.SEPT.OCT.OCT.OCT.OCT.OCT.KOV.NOV.HOV.NOV.DEC.DEC.DEC.DEC.41110-25-8-15-2'9-29-5-12-19"26-3-10-17-24317-I4-21-26-3-10-17"24-JULYJULYJULYAUG.AUG.AUG.AUG.AUG.SEPT.SEPT.SEPT.SEPT.OCT.OCT.OCT.OCT.OCT.NOV.HOV.HOV.HOV.DEC.DEC.DEC.DEC.DEC.11.1825815222'95121926'101724317142126310172431(0.05<0.05(0.05(0.05<0.05<0.05<0.05<0.06,<0.05<0.06<0.05<0.04<0'5<0.05<0.05<0.06<0.06<0.06(0.06<0.05<0.06<0~05.<0.05(0F05(0.06(0.05<0.07(0.06<0.29(0.08<0.07<0.07(0.07<0.08(0.08(0.00<0.00<0.06<0.00<0.11<0F09<0.08<0.00<0.09<0.06<0.06<0.07<0.05<0.06<O.eh<o.oh<0.00(0.06<0.05(0.05(o.oh<0.05(0.06<0.06(0.05(0F05(0.07~<0.05(O.O?<0.070.07<0.07(0.07(0.07<0.07<0.07<O.O0{0.07(O.ohD.O?(0/00"7<0.08(0.14(0.12<0.13<0.160.15<0.15<0.15<O.17<O.10(O.10<0.10<0.23<0.20(0'2<0.22(0.22<0'1<0.23<0.22<0.25<0.28<0.20<0<0.21<0.25<0.19ALLVALUESGIVEttAS<ARELESSTHAt(THELLDCORRECTED FORDECAY.

TABLE<<<<h1988EtlVIMttt!EttTAL HATERSh!!PLEOGROSGBETARESL'LTSItl<<<<Cj/LhÃALYSF:S UEEV.QFRUSSELLO.U.!I.CIPC.ItlCIIIC-0<<JTDEERCREE!!TAPIJELL'll.,!AH.3JArt.!0-JAH.I?JAH.24JA!l.31IEB.IEB.I4IEB.21!EB.28-t!ARC!l6"t!ARCH13-t!ARCH20-IIARCH27hf'RIL3AF'RIL10hF'RIL17-hf'RIL24-I!AYt~I!AY8t!AY15t!AYHAY29JUHE5JUHEI".,Nt(EJUHE26JAH.9JAtt.t6JAtt.JAII.30FEI'.I3FEI:.20FEB.27HARCH5tlARCH12tlARCH19!!ARCH26APRIL2APRIL9AF'RIL16APRIL23APRIL30HAY*7tlAY14I!AY21I!AY28JUHEJUttEIIJUHEISJUt!C25JULY2I.85.<<.0.76 1.45+0.7'9 I.42<<0.792.28+0.82 1.68<<0.76 2.47+0F871.28<<0.74 3.86+0.g?

1.43<<0.68 1.76<<0.71 2.0?<<0.8'?

2.600.0.93 4.48<<0.'?7 2.82+0.94 2.38+0.87

<1.202'6<<0.842.35<<0.811.65<<0.8?

2.14<<OS93<1.202.14+0.84 1.80<<0.86 1.77<<0.81

91.96<<O.S!

1.90<<OS?73.24<<O.?8 1.96<<0.8"I.?e<<O.?6 2.16<<.0.83 2.46<<0.77 2.47<<-O.?7 2.28<<0.76 1.23<<0.75 2.10<<0.90 2.83<<0.91 2.40<<0.82 2.36<<0.'?0 2.84<<0.922'2<<0.842.45<<O.S4 2.?6<<0.86 1.30<<0.84 1.57<<O.S7

<1.202.12<<0.85 2.03<<0.83 2.08<<0.86 1.55<<0.841.71<<-0.80 1,79+0,902.1.2<<0.?5I~88>O.S!!.40<<0.733<<?<<0"'-.68<<0.?8 2.07<<0.86 2.18<<O.S3 1."02.82<<0.79 1.95<<Q.74 1.44-<<Q.??

2.07~0.88 2.84<<0.86 2.43~0~832.73<<0.88 2.2?<<0.36 2.39<<O.SO 2.I9<<0.891.68<<0.87 2.!S<<0.84 2.71<<0.84

<1.2010!.47<<0.8?

2.81<<0.87 2.2'?<<0.75 06iQ?01.98~0.76 2.3?i0.?t 1.63<<0.7?

'1<02.:3<<Q.SI 2.47<<Q.783.14'0.791.94<<0.731.36<<0.811.55<<0.83 1.79<<0.??2.04<<0.852.81<<0.88 2.37.i0.80 2.37<<0.85 1.84<<O.SO 1.?1<<0.79 3.62i0.91I.62i0.85 1.99+0.90 896')<<07i<<'Oak743.13<<0.91

".66<<0.952.93<<0.97 I.?4<<0.922.75iI.QO2.68<<I.P?

<1.203?0.92<1.20I.91+0.932.31<<0.05 3.42+1.Q2 2.2241.P23.20<<t.09<1.20".11<<.1~QS3.Q3<<0.86,3.?8%,I~QltIAÃIHUII i"i<<?ERAGEIIIHIIIUt!4.40<<0.972.171.28<<OS743.24<<O.?02~161.23<<O.?53P7<<Qlg16!.20<<n65:62~0~'?!2'61.30<<0.8'9 3.13>0.91 5w1.."4<<n.92 3.P3<<0.86252pg3.'?8+I.QI 1.91>0.93ALLL<<ALUESGIOEHAS<ARELESSTHAHTIIE!.LBCOPRECTEO f'QRBECAY.

S ThKZVBO.W.D.RESULISINpCj/LHEXL'B'ULY3JULY10JULY17JULY24JULY31283.7MG.14ME.21NJG.28SEPT.4SEPT.11SEET.18SEET.25OCP.2OCP.9OCP.16OCP.23OCP.30KV.6NN.33KV.20KV.27IZC.4IZC.31IZC.38IZC.25-JULY-JULY-JULY-JULY-AU".-AIR.-AU".-AIJ.-SEET.-SEPT.-SEET.-SEEP.-OCP.-OCP.-OCP.-OCP.-OCP.-KV.-KV.-KV.-KV.-GEJ.-GEC.-GEJ.-HEC.-GEJ.9162330633202731017241835222951239263101724312.30H).94 2.63K).78 3.27+0.96 2.75f0.97 3.1(HO.92 2.91&.923.2lt0.99 2.19tO.851.35H).78 3.MO.922.07&.842.5tH0.83 2.538).81 2.71M.861.8(HO.83 2.52%.831.42H).77 1.EB0.831.3%0.771.70H).78 2.39%.821.81&.751.4550.85 1.61&.702.71&.852.40H).85 3.$80.922.tXHO.833.60H).84 2.IDAHO.82 2.4&0.792.04&.882.85H).93 3.07+1.002.GBO.822.(&0.84<1.202.7OH).90 2.7(HO.90 4.16H).933.30H).88 3.07M.902.268).82 2.7&0.912.6&8).882.32i0.81 1.63+0.87 l.GB0.792.84M.851.84&.772.3&8).80 2.10H).824.1&0.931.9&$0.831.64&.852.338).79 1.4HO.862.238).91 1.86H).93 2.49H).81 1.96H).85 1.$80.812.4&&0.85 1.91&.823.5250.87 3.58HJ.88 2.398).89 1.86H).79 2.50H).88 2.(&0.781.628).78

<1.201.67&.783.1&0.922.5'.761.6283.76 2.56H).81 3.5&H).88 1.4&8).79 2.30fO.77 1.91&.781.42+0.76 1.65tO.88 2.228).92 1.61M.952.ZHO.811.4&8).80 1.45%.783.07M.901.5%0.753.2&%.882.4~.802.31M.812.84%.052.07&.842.WHO.831.47&.742.0HO.831.87M.842.47&.832.4&0.762.3&H).761.77&.711.8&0.793.2%0.881.47&.803.83+1.08 2.6&0.854.5$.1.332.15tO.82 2.43+1.03 3.13+1.062.6&H).86 4.57+1.08 4.01M.961.6HO.743.3~.924.0l+0.96 2.8210.82 4.57+1.083.248).95 2.828).82 4.5$.1.012.321.3010.77 2.551.680.872.231.4SH).86 2.071.42tO.76 3.463.13+1.06 2.241.47M.803.882.43+1.03 AILVKUESGI.VENAS<ARE?ASSGKK'IHEIXDKHRECKDKRIZCKY.

ENVIRONMENTAL WATERSAMPLESGROSSBETAANALYSISFOR1988R.E.GINNAPOWERSTATIONpCi/liter 5l3579111315171921232527293133353?39414345474951 WEEKNUMBER~UPSTREAM, RUSSELL~DOWNSTREAM, OWDALLVALUESPLOTTEDAT1.00pci/LARELLDVALUES.

7th ANNUALTRENDINGOFENVIRONMENTAL WATERSGROSSBETAANALYSISR.E.GINNAPOWERSTATIONpCi/liter l21006869707'17273747576777879808182838485868788YEAR~UPSTREAM, RUSSELL~DOVINSTREAM, OWDYEARS1968"1988 L

TABLEVIAEHVIROHMEHTAL WATERSAMPLESTRITIUMANALYSISRESULTSINpCj/LHOttTHOFRUSSELLO.WAD.CIRC.It1CIRC.DUTDEERCREEViTAPWELL'D'AHUARY FEBRUARYHARCHAPRILJUHEJULYAUGUSTSEPTEtlBER OCTOBERHOVEMBERDECEHBER<595<615<700<690<550770+380<570570<580<570<520<640<595<615<700<690<550<625<570<570<580<570<520<640<615<700<615<700<690<690<550<550<625<625<570<570<570<570<580<570<580<570<520<640<520<640<595<595<595<610720+410830+440<690<560(a>(a)(a><570550+330<715<595(610'50600740I430<560<630<580<570<520745~450,00+3606'0'00i390

<690<690<560(a)<-630<580<570O90+330ALLVALUESGIVEHAS<ARELESSTHAHTHELLDCORRECTED FORDECAY.(a)ttoSampleTa'ken1'avTrjtiu~.

fW TABLEVIDFALLOUTTRITIUMANALYSISRESULTSIHpCi/LltOHTHOFJAtlUARYFEBRUARYMARCHAPRIL<595<615<595<6'I5<595<615<595<615<700<690<700<690<700<690<700<690STATIOH35TATIOtl5STATIOH8STATIOtl10STATIOH12<595<615<?00<690JUHEJULYAUGUSTSEPTENBER OCTOBERHOVENBERDECEMBER<600<625(570<570<580'~<5?0<520<600<625<570<570<580<570<520{640<600<625<570.<570<500<570<5~0<640(600g<625<570<5?0<580510<520<640<600C$2<570<570<580cTp<520ALLVALUESGIVEHAS<ARELESSTHANTHELLDCORRECTED FORDECAY.

TABLEVICIOBIHEIHllATERRESULTSIHpCi/LMOHTHDFRUSSELLO.U.D.CIRC.IHCIRC.OUTBEERCREEYiTAPDELL~D~JAHUARYFEBRUARYMARCHAPRILMAYJUHEJULYAUGUSTSEPTEMBER OCTOBERHOVEMBERDECEMBER<0.37(0.32<0.36(0.35<0.36<0.34(0.45<0.39<0.50<0'9(0.50<0.40<0.29(0.35<0.50<0.35<0.39<0.35<0'2<0.47<0.32<0.26<0.52<0.58<0.58<0.26<0'9<0.35(0.56(0.39<0.59<1'4<0.51(0.30<0.50<0.30<0.28<0.40<0.48<0.23<0.53<0.38<0.48<0.31<0.43<0.31<0.38<0.31<0.26<0.30<0.24<0.36<0.39<0.38(a)(a)(a)(0.30<0.41<0.38<0.32<0.3S(0.32(0:35<0.34<0.38(0.33<0.40<0.3S<0.40<0.28<0.33<0.77<0.33<029<0.35<0.30<0.37<0.38<0.38<0.38<0.35<0.31<0.43ALLVALUESGIVEHAS<ARELESSTHAMTHELLDCORRECTED FORDECAY.(a)HoSar>pieTaken.

TABLEVIIARUSSELLSTATZOttMATERGAMMAISOTOPICAttALYSEG RESULTSIt!pCi/LITER BETMEEtlDATESOF7nE54lsil595860FECOCQ6IJ95Ztl'Rfigsv!IDJAHIJAH~31FEB.I-FEB.29IIARCHI-NARCH31APRILI-APRIL30HAYI-MAY31JUHEI-JUkE30JULYI-JULY31AUG.I-AUG.31SEPT.I-SEPT.30OCT.I"OCT.31HOV.I-HOVE30DEC.I-DEC.31<29<46<51<45<46<45<51<48<50<51<47<36{48<57<49Smple<57<58<555?<54<54{5135c5Lost5565r5556<3<48<5<69<5<68<5"69{5(69<5(6<10<6(75<69<5<6<10<5<69<5(610(10r53Q~<109-'.9(11(10(10<r'?(11(9r555555555BETMEEttDATESOF103106134137140141144226RURUCS.CSBACECERAJAtl.IFEB.tlARCHIAPRILIHAYIJUHEIJULYAUG.SEPT~IOCT~ItlOV.IDEC.-JAtl.31-FEB.2'9-IIARCH31-APRIL30-HAY31-JUHE30-JULY31-AUG.31-SEPT~30-.OCT.31tlOV.30IE"31<47r46{53<S0{50<485c5rc{?ss?{3{45<5r48<c<48<5r6666(6r?{}~3?3.'1322?1r1r41I~6<206<275<I'?8(12(13(11<12{13(1413-(14i<13(34<52(54cs5'7'.66(61{sQ11{10<IOis~~rIn~gI11<Is111~~ALLVALUESGIVEtlAS<ARELESSTHAtlTIIELLDCORRECTCD FORDECAY.

tABLEVII8ONTARIOltATERDISTRICTMATERGANtlAISOTOf'IC AHALYSESRESULTSIWpCi/LITER BEIltEEKDATESOF7BE5I51CRNK5958FECO60CO65959SZHZRIII103RU106RU134137140141CSCS~'BACE144226CE"RA7-JAH.2121-FEB.44-FEB.1818-NARCH33-NARCHI?17-tlARCH3131-Af'RIL1414-APRIL2828-NAY1212-tlAY2626-JUKE99-JUHE2323-JULY77-JULY2121-AUG.41-AUG.1818-SEPT.II-SEF'T.1515-SEPT.2929-OCT.1313-OCT.272?-NOV.1010-tlOV.2421-DEC.88-DEC."222-JAt!.<2e<25<45(13<hd<47<18(52<50(45(47(hd(45(52<52<56(54'lIc0(54(52'.48<54(545I<30(3(27(3<46<5<46(47(5(17<5<58<5<57(5(61(5(62~(5<53<5<53(5(57<5<54(5<71(5<56<6(dd(5(dh(6(63<-5<54(5<ed(5<61(5{49<5(65<5(63<5<61<55<35<39<589<49<59<5<10(59<5<10<59<58(59<58<5<10(59<6<II<6<10<6<10<5<10<5(Io<5(10<59<5(11(6<11(5<10<543656666666766(6677666666r55(109<1099(10<11'99<10<11<10<10<11<12(11<10(10<10(<10(10<10<11<105(35(38(50(S0(59<59<59<S10(69<69<59(59<58(5IO<610(610(610(69(610(510<69(60(510(610(610(6335$5d66{6S6<65(d67766766r76<28<28<hl<46<46<48(48(SI(48<46<18<48<16<47(55<55<53<50<$0<53<51(48<51<$1<503<33<35<65<65<65<65<65(65(65<65(65<65(65(6<5<65(75<66<65(65<'65(65<65<65<65<65<5<10(8<11<7<18<11<18<11<18<1119<II<28<13<27<13<32<14<32<14<18<12<21<12(21<13(17<12<31<15(22<14<31<16<31<16<29(15<22<11<32<16<29<15<20<13<32<15<31<16<31<15<34(6<33<6<Si{10<52(10(52<10<53<11(53{10<,53(10(54<10<55<11<55<10<55<11(50<10<55'0'(SO(11<64<12(65<12<65<12(63{11<61<11<62(11(61<ll<61<11<64<11(63(11<60ALLVAI.UESG.".'Ett:,5

.'RELESSTIIAtlTHELLDCORRECTED FORDECAY.

TABLE",IICCIRC-OUTttATERGAMMAISOTOf'IC AHALYSEGKGULTSIt(pCi/LITER BETUEEHDATESOF75154BE"CRtlH$958FECO60CO652H95ZRtoRU106I34RUCS137140141CSBACE144226CERAJAH.JAH.f'ER.rEB.HARCHtfARCHIIARCHnf'RILi"iPRILHATttAYJUIIE.IUHE,.HILZJULYAUG.AUG.AUG.GEf'T.SEPT.OC'f.OCT.WOU.ttOV~DEC.t>EC.6-')Q-3-17-16-3Q.13-27'PS8-2s-6-2P3-17-3114"')8-IN~6'i3?--JAH.20FER.3FEB.17tlARCH2NARCHldMARCH30APRIL13Af'RIL27NAT11NAY25JUNE8JUIIE22JULY6JULY2QAUG.3AUG.17AUG.31SEPT.11SEf'T.28OCT.12OCT.26NOV.9tt09.23DEC.?DEC."IJAtt.4(3(55(5{28<30<29<35(44<18<46<51{43<46DataLost<41<18<5<16{48<5<50<59(5<50{62<5<44<54<5{48(51{5DataLost(48(el<5{53<72(5<51<61<5<5d<61{6<5d(d2<5:51<62'5DataLost{51{dl'(~5<52{62<5{17(49<5{52<62<5<52{59{5<52<el{55{35<39<.59<58<<9{59<59{5<10<5{9<59<5<10<5<11<5<10<6<11<5(11<6{10<5{10<5<10{59<5<11<5<10<5<10<53/55566666{76667766666e655999<109999<10(10<10<10(10{11(11<10(11<10<10(9<10<10<10<10<10666(666(10(6e9<5<10(6<10<69<6(e6r7r7r6766<e65(3('35<3<48<59(5<6<88<59<49<5(69.6<6<5<59<S(.d<29<3<28<3<47<4<46<5<4$<5<16<5(48<5<47<5<48<5<48<5<4'9<5<48<5<47<5<$0<6<51<6<52<6<50<S<51<5<50{5<$1<5<51<5<49<5<49<53<124<155<206<2$6<19<19S<186<286<326,<176<206<266<356(316<32(7<296<286<286<296<19(6<336<276<3088<.-1t<12<fl{1212<13<11<1212<14<16<16<16<16<15<15<15(13<1614f$<34<7<33<6<52(10<Sf<10<52<10(53<.10{,55<11(54<10<55(11(56(10<51<11<57~(61<f0{64<12(66<12<61(12<61<11(62<11<63<11<60<11<63<11<60(11<60<11ALLUALUESGIUEttAS'RELESSTHANTHELLDCORRECTED FORDECAY.

7 TABLEIVIIDBEERCREEtlLtATERGAtttthISOTOPIChtNYSESRESULTSINpCir'LITER BETtlEEHBATESOF7CIBECRc'4Htl59FECQCOv0CO(Cncrne.'tBJAtl.FEB.HARCHAPRILttAYJUtlEJULYAUG.SEPT.OCT.tlOV.BEC.1-JAtl.311-FEB.291-HARCH311-APRIL301-ttAY311-JUHE301-JULY311-AUG'11-SEPT.30!-~OCT.311tlOV.301-DEC.31<50<43<47<45<46{45ttottotto<49<48<49<33<46{5147{49<55FlowFlowFlow{51!5g<5575!C55inCleekinCl'eekinCreek55<11888{4<107r!5rC5I55656V66612{1011<10<11{11/I1<11r89rn'\{9rr"4IVCC55BETMEEttBATESOF103106134137140141144226RURUCSCSBACECERuiJAtl.1FEB.1ltARCH1Al'RILIttAY1JUHEJULY1AUG'EPT.1OCT.1HOV.1JAtl.31-FEB.29-tlARCH31-APRIL30-ttAY31-JUHE30-JULY31-AUG.31-SEPT.30-OCT.31tlOV.30BEC~3165655r(14V(V6;60!6<44<5<47<6{46<5<46<5C<51!5166rr'<20<20<23((5<186(216<20(!185<11{12(12<12<13(7~u{1422(51rSc57~53'.50{6Jr~<63/13(~+I<Il11~II{12ALLVALUESGIVEtlAS<AIELESSTMAttTHELLOCORRECTED FORDECIIY

TABLEVIIETAPWATERGAHMAISOTOPICAHALYSESRESULTSIHpCi/LITER BETUEENDATESOF75154595860659595BECRMHFECOCOZHZRtlDJAH.FEB.MARCHAPRILMAYJUHEJULYAUG.SEPT.OCT.HOV~BEC.1-.JAH.311-FEB.29-MARCH311-APRIL30-t!AY,311-JUNE301-JULY311-AUG.31-SEPT~301-OCT.311-HOV.301-DEC.3127(43<45<44<46<45(44<51<47<49<49{29<3(45(4SampleHat/49(49(5(55(5(53<5<51<5{54<5(50;5(51<5(50<558Tat;en(8r8'99(--88r8(1093<44(55(55<55'75<65(65(65{6S(65<66(589(9'8(ll(8'9<9(10('9(10<10<10(8(10(9(10(93"55r{C(Cr5BETQEEtlDATESOF103106134137140141144226RURUCSCSBACECERAJAH.1-JAN~31FEB.1-FEB.29MARCH1-MARCH31APRIL1-APRIL30tlAY1-HAY3lJUNE1-JUHE30JULY1-JULY31AUG.1-AUG.31SEPT.1-SEPT~30DC'-OCT.31tl01HOV~30BCC.!-."-C.3l3r(55(55{5r(665{46<44<49(48(48{5Src0(494p5555/5pnr(42<56{66666r6(19{'19<18(1?(l7(21(20{20(194{124(18?(11(11<12(12<12(13<13(13':13{52(545?(56(5664<595(60<11<10<11r11(10'.12<10(!!11(33(7<49(10ALLVALUESGIVEtlAS(ARELESSTHANTHELLDCORRECTED FORDECAY.

1 O'ELLI'O'l<<ITLR GAHtIA~SOTOI'IC AH"'SE0RESULTSV.'Ci.'LITER I<<ETUEEt!DATESOFrBCC<<JICR54NHFE5860659595COCOIttZIIt!B3AtlfEI'.t!ARC!IAPRILtIAYJUI'EJULYAUG.SEF'T.OCT.IIO"DrC-APRILI-MAY-JUNEI-JULYI-AUG.I-SEPT.I-OCTrI-tteV.I-DEC.3031303131303~3031I-JAH~31I-FEB.29I-HARCH31<28r<<'I<<~48<46(nc<45J2<48<48<4833clc'5054c4CCJJCCJJ52C7vJ51/3/CJ/5555<</5C58(90/<<,'r<109r<<0<3<44<65<65(6(5'<75<65(76(85(65<665<11<11(11<10(II<11<11<12<11<123<1130<59<50(5(0<59-5~9<50<5<10<6'9<59(59<5BETIIL'Ett DATESOF103RU105RU13413?CSCS14014114422$!IACECEIthJAtt.IFEE'.It!ARCHIAPRILIAYIJUt!EIJULYIAUG.ISEPTCCT.HO'2.IDEC.-JAH.-FEB."HARCH-APRIL.HAY-JUHE-JULY.tJG.-SEPT.-OCT~-Item-DEC.312931301!303I313031303l3CJ5C5C5r/1?P748fc47484?5C5~Sp53366/55/rr/55rr/'4666556I512<10<<9IIQr1nI?19(lQr<</rlg0<11<12<1211-'.13.,13y~g<36,24~6<52<13<56<In<56<14<54<13<50<14"50<12:60(13<65(14.60<13<63<13"52('13<<~In'J<<~IlrSG<<llgttASr<<nrrls.~THAITl<<EILDCllRI<<FETED fag1<<Er!<<Iy TABLEVIIIFALLOUTGROSSBETAtl,"tALYSES RESULTSIHpCi/H/DAYHotlTllOFJAtlUARYFEBRUARYHARCHAPRILJUtlfAUGUSTSEF'TEHBER OCTOBERHOVEHBERIiECEHBER STAIIOtt3STATIOH53.l6~0.433.61>0.781.54~0.25 5.94>0.83 8.95>t.t4 4.42i0.86 2.00<1.45 3.9O>>.677.59+1.57 7'3+2.381.88'.S72.84~0.56 8.71>>.194.53~0.985.65~t.70 6.t:41.78 5.9?it.48 5.09~2.17 4.54+0.97 3.63w0.72 5.76)0.89 5.470.90 5.27It~St4.26'1.43 2.3240.30 4.2240.963.44~0.?5 4.38>1.05 3.31~0.97 t.37~0.73 8.56~2.36 2.92~1.636.63it.62 3.83%t.6604+0?g3.30+0.59 6.10+0.5?

3.36+0.74 3.4240.?4 1"-.05+1.

55li15.05+tF417.33+2.08 4.1"<1.6619.03>2.28 3.93+1.18 2.26+1F905.45i1.01 3.9I40.6i5STATIOH8STATIOtt10STATIOH123'1+0.443.84>0.88 3.90+0.64 7-00+1.05 4.96+1.01 6.35+0.?1 4.93+1.864.58+1.72 3-81+1.26 8.44I2.418-59>1.39 3.37+1.02ttAXIHUttAVERAGEHIttIHUtt4.701.88~0.57 P<<1y~~'~Is5.121.54~0.25 O.sbt2.36 F881.37+0.?J 1'?.03+2.28,'.1?

2.26+1.908.59>>.395.243-Ol+0.44

TABLEEXTERNALPENETRAT]NG RADIATION THERMOLUM INESCENTDOS]METERY 1988UnitsMr/91dayQtr.LOCATIONawwww1stQtr2ndQtr3rdQtr4thQtr¹2-¹?plus¹13areon-siteneartheIineofhighestannualaveragegroundlevelconcentration.

¹8-¹12areoffsiteat~adistanceof8to15miles¹14-¹16arelocatedalongaIine3000.ft.westoftheplant.¹17-¹21arelocatedalongLakeRoad.¹22-¹24arelocatedalong~theeast.siteboundaryline.¹25-¹30areoffsiteataditanceof8to15miles.¹31through¹40arelocatedinanarcatadistanceof4-5mi1es.%%aa0ww%w42345678910111213]41516171819202122232425262728293031323334353637383940%%%%a%ww15.3+/-+/-+/-+/-+/-+/-+/-+/-+/-+/-+/-+/-+/-+/-+/-+/-15.715.718.312.640.31.1.8I0.3I2.3I2.9I2.8I6.913.415.213.914.415.314.714.914.013.5]5.416.113.111.313.815.]12.610.215.112.914.614.418.514.613.814.513.812.8+/-+/-y/+/-+/-+/-+/-+/-+/-+/-y/+/-+/-+/-+/-+/-+/-+/-+/-+/-+/-+/-3.84,04.04.63.26.53.02.63.-I3.33.24.33.43.83.53.63.93.73.83.53.43.94.03.32.83.53.83.22.63.83.33.73.64.73.73.53.73.53.213.914.614.914.412.434.512.510.812.112.511.814.812.614.413.513.414.214.214.812.913.713.813.811.511.012.513.811.510.014.513.I13.8]4.714.812.213.312.913.912.3+/-+/-+/-+/-+/-y/~/y/y/+/+/-+/+/-+/+/-+/-+/-+/-+/-+/+/-+/-+/-+/-+/+/-+/-+/+/-+/-+/-+/-y/+/-+/-+/-+/-+/-+/-3.53.73.83.63.18.73.12.73.03.23.03.73.23.63.43.43.63.63.73'3.43.53.52.92.83.23.52.92.53.73.33.53.73.73.]3.43.33.53.1]4.4]4.014.515.911.029.512.4II.511.810.912.115.212.915.I14.312.214.213.713.814.212.713.614.810~510.813.215.012.710.313.312.314.114.113.911.712.114.314.212.6+/-y/+/-+/-+/-+/-+/-+/-+/-+/-+/-+/-+/-+/+/-+/-+/-+/-+/-+/-+/-+/-+/-+/-+/>>+/-+/-+/-+/-+/-+/-+/-+/-+/-+/-+/-+/-+/-+/-3.63.53.74.02.87.43.12.93.02.73.13.83.23.83.63.13.63.53.53.63.23.43.72.72.73.33.83.22.63.33.13.63.63.53.03.03.63.63.214.7]5.215.615.514.337.113.911.812.514.412.'715.613.315.017.013.615.615.216.514.413.514.914.812~211.613.4+/-+/-+/-+/-+/-+/-+/-'/-+/-+/-+/-+/-+/-+/-+/-+/-+/-+/-+/-+/-+/-+/+/-+/-+/14.2+/-13.5+/-12.314.112.814.414.714.312.312.112.913.912.7+/+/-+/-+/-+/-+/-+/-+/-+/-+/-3.73.83.93.93.65.93.53.03.23.63.23.93.43.84.33,43.93.84.23.63.43.83.73.12.93.43.63.43.13.63.2~3.63.73.63.13.03.33.53.2eaeeeeeraaasaeasassswaaeaaoeeeeaaoeeawraaesaaaaaaaawswwwwaaeaesaraeaeeaeeeeaaeaa

EXTERNALPENETRATING RADIATION THERMOLUMINESCE NTDOSIMETRY R.E.GINNAPOWERSTATION20AVEmRem/QTR181716l2246810121416182022242628303234363840 TLDLOCATIONNUMBER~1988~1987LOCATION¹7OMITTED

TABLEXI!ILIlRESULTSINpCf/LITER cARMADnDCDBArBDACBDACBDACAl1CBACBDArBOAhCBk1BDArDADCDh>>CvhIAgJAH~ccBFEB..".ARCHMARCHAPRILAPRILMAYMAYJUREJUHEJUHEJUHEJUHEJUHEJUHEJUHEJULYJULYJULYJULYJULYJ'JLYJULYJULYAUG.AUG.AUG.AUG.AUG.AUG.AUG.AUG.AUG.SEPT.SEPT.SEPT.SEPT.SEPT.SEPT.SEPT.SEPT.SEPTOCT.OCT.OCT.OCT.OCT.OCT.OCT.OCT.NOV.HOV.DEC.DEC.I498i1912614162f23183057!2141921161749lp16182330I6815202127294613182P2517!5~e~~16'-131'.0.37<0.3P<0,38<0,38<O.33<0.36<O.34<0.39<0.36<0.38<0.39<0.38<0.39<0.33<0.36<0~40<0.48<0.40<0.56<0.33<0.36<0.34<0.37<0.33<0.42<.0.44<0.40<0.35<0.47<0.39<0.37<0.37<0.42<0.36<0.40<0.43<0.37<0.42<0.36<0.41<0.38<0.50<0.34<0.30<0.39<0.38<1.11<0.38<0.38<0.42<0.46<0.43<0.46<0.33<0.65<0.36rS-1371<7(7<7<6(6<8<6<8<6A(6<6<6<6<7<6<6<6<7<6<6<7<6<6<6~<6<8<7<6<7<8<7<'7<7<7<7<7<7<7<7<7<7<7<6<6<7<7<6<7<7<6<7<7<7BA-140(22(18(14r'I(1P<20(20<25<18<20<19<21(19<20(19<19(19(10(20(1'9(20(19(20<20(20(25(20(19.(22(25(23(23(23'(27(22(24(21,(21(21(21<21(11H-4Of620+II0!$20l!:P!47G~!'50I48Pi'.3P1660+!Of63P~IPP1620+IIPf640~!fP1750+IIPf580afPP1960+f401450+110f5'90+Ifp 1680+f201650+f201530+I!Pf640+!f015PO+!101560+I!01710+1101590+!101690+!201570+!20f$7O+1!Of650+!f01620+!2O1670~1101580+12O1590>fI01740+!10162&120I610+1.'101590>fop1640+lfpf64041001580+1101550>lpp1660+120*1560~ff01570+1101270if501330+!30!340~170f360+1701490'40I450>1401540I11061pifPO'.350~f6P1350+!70149011601320+'901550~ffP1590+Ifpf360'6P1530+110ALLVALUESGIVEHAS<ARELESSTHANTHELLDCORRECTED FORDcCAY

TABLEXIFishSamplesResultsinpCi/kgmWetDESCRIPTION IIRSfHALF1988DROUHTROUTLAKETROUTIIHITEI'ERCHYEt.LOUfERCHSECOIIDHALF19885/275/275/2740K3200'O4?3011502380'037601160SlS159CRIIHFE;67(7<15(315(17<51<72<7<15<200(f6<375860coca7(9<21<227<9<16<10659595ZtlZRtIPr12'9<37r32:IS<13r?(37(32(20103106131RURUI8(66(11,28<160<2808<66<13(20<t55<52131CS7<167,<16137CS30>4<21110>IS140111111226PACECERA<30<16<67<-14(310<68<175<33<31(16<68<14(110<43<160<34CHINOOKSALNON8/9DROIIHTROUT11/1IIORTHERH f'IKE11/4t.AKEfROUT12/23750I903770>t104310i1403160+8013<195<10<215<15(250<8<210<31<44<36<41<11<13<11<19<19<12<9<34<230<92(25<2118C34<31'23<20<0<I?0<110rto<9Srl?O<23<110<140<t'9<76<10<10<1573646<1826~5<680'<135<18<200<42<110<20<210<51<160<29<49<51<8?<15BACKGROUND FISHFIRSTHALF1988ROC!.'I'ASS4/12DULI.HEAD 5/8IIAIIIPOU TROUT5/8SNALLHOUTH PASS6/8SECONDHALF19SS359041904130tI10553ottoo45504140(!70<310<!25<570<37<91<ll<39<20<100<15(59<170<32'4<13<37<24<23<17<94<355(25'r29<48(66(34(42<f50<820<330~25<21<100<700(62<200<42<37<135<!30(31<31(10<12<1866its<1328iB<!40<120<450<58110<!70<100<150<53<20<37<26IOCKPSS9.1SYELLOUf'ERCtl11/ICH!tlOOKALHOK!I'DROUttTROUT:I/9'890iI0036QOitto2?toi804970il30<!50<!10'<670<f30<15<115<11<1009(63(12<28<30(14(27<14<14<15r34C32')3(31(6'.53'61l(80<75<110r75<63<1304?<39<86rtt<t1<115<25513<15<1232'?(842tSC1230!6(240<160<l60<f90<150<120C99C67<32C130r'l4<24<15T)LLVALUESGIVENAS<ARELESSIHAHTHELLDCORRECTED FORDECAY.

'E TABLEXICLAKESAMPLESRESUIZSINpCi/KGMDESCRIPTION 40K51CR54MN59FE58CO60CO65ZN95ZR95NBCLADOPHORA

-8/12755+70<63<6<13<6<8a<14<ll<6LAKEBOTTOM8/18560+80<72<6<1467<16<ll7DESCRIPTION 103RU106RU131I134137CS140BA141CE144CE226RACLADOPHORA 8/1<6IAKEBOTTOM8/1<7<58<55<8<677<22398+7<30<14<17<65<71<12ALLVALUESGIVENAS<ARELESSTHANTHELLDCORRECTED FORDECAY.II

TADLEXI"VEGLTATIC!1 Shtlf'LES RESVI.TSIHtC>.'.',Gtl UETDESCRIF'T'IOH LETTUCE7/18CHLRRIES7/20APF'LES9/9ZUCCIHI10/5GRAPES,10/1040I0340>3130 IOI30~60IIO0~6020?2$901230~5051CR<400<58<65<94/635459.58HHFECO":39<74/396<12<57<13<7<10<20'10?<13<6CP<138695ZttZFttt8;83<613<40<13<10<5<14<12<7<23(li"<10<14<12<7COtlTROLVEGETATIOtl SAtlPLESAPPLES9/26SllISSCIIARDIO/

4710.t1002920i140'.64<1606<13<7<17<31<16<10<2014<12<7<36<29-'.16LETTUCECHERRIESAPPLESZUCCIHIGRAPES7/187/209/910/510!10DESCRIPTIOH103RU<3958117<385c'6'1gL,~J<63'7i88;38<476/7<9i'0/~/7rCOHTROLVEGETATIOH SAtlPLES106131134137RUICS1'S140BArlIO/gpr<39I4't144226CECEISA<84(385<85<13<59/11<li?<79'S(24<110<22<16<i5<14APPLES9/26SllISSCHARDIO/47<I?6'1;I08-:7'20;16<2016<77"I'I<39<180<35ALLVALUESGIVEHAS'REl.ESSTHAttTHLLDCORRECTED

.OhDECAY.

TableXIIIDWERLIMITOFDETECTION (LLD)AirFilters(a) pci/M3(minimium sple.3500M3/Qt.)WaterMilkpCi/liter pCi/liter (sampleof(sampleof3.5liters)3.5liters)FishpCi/kg(ave.sple~2kg)Vegetation(a) pCi/kg(ave.sple.2kg)AveDecay(c)Be-755days0.0250.5d438days0.5d486days0.5daysK-40Cr-51Mn-54Fe-59Co-58Co-60Zn-65Zr-95Nb-95Ru-103Ru-106I-131Cs-134Cs-137BaLa-140Ce-141Ce-144Ra-226Beta0.0120.0350.0020.0050.0020.0020.0040.0050.0040.0040.0140.03(b)0.0020.0020.0640.050.090.004465456Gamma0.24Beta1256121.2(1liter)5810452914561222010301010252418189510Gamma150.24Beta10124010020951020101322171012100121012,102511020(a)LLDvaluewillvaryduetodifferent samplesizes.Databasedon1988background samplespectra.(b)CharcoalCartridge (c)Ave.decaynormalperiodfrommidpointofsamplingperiodtocountingtime.

0gld,Ap'\

TableXII(Continued)

TABIZNOTA'IKON WeLLDisthe.smallestconcentratian afradioactive materialinasamp3e'hat wQ1yieldanetcount(abovesystembackground) thatwLL1bedetectedwith95>>probability withanly5$probability offalseIyconcluding thatablankobserva-tionrepresents a"real"signal.Poraparticular measur~ent systaa(whichmay1ncluderadiochemical separation):

4.66SbLLDmEV'.22xpf-Qt))lwhereLLDisthelowerlimitafdtectianasdefinedabove(aspC1perunitnassorvalume)Sbisthestandarddevtaticn afthebackground countingrateorofthecountingrateaCablanksampleasappropriate (ascountsperndznxte).

Eisthecountizgefficiency (ascountsperdisintegration)

VMthesamp3esMe(inunitsofmassorvolune)2.22isthenunkerafdisintegrations perminuteperpicocurie lYisthefractional radiochend.cal yield(whenapplicable) histheradioactive decayconstantfortheparti~radionuclide ThevalueafSbusedMthecalculation aftheLLDforaparticuIar measurement systemshallbebasedontheactualobservedvariancecf'helackgraund countingrateorofthecountry:rateaftheblsnksamples(asappropriate) ratherthanonanunverified theomtica31y.

predicted variance.

Incalcu3ating theLLDforaradianuclide detisrijdned.

bypuma-rayspectranetry, theback~euKshall1ncludethetypicalcontributions Notherradionuclf.des noznallypresentMthesamples(e.g.,potass~oinmi33csamples).

1u TABLEXIIIEPAINTERLABORATORY COMPARISON PROGRAM-1988Alpha/Beta inWater(ResultsinpCi/1)Date03/18/8807/22/8811/25/88SampleA~nalsisAlphaBetaAlphaBetaAlphaBetaExperimental Data3329109109111011118769107EPAValuekl~6+513+515+54+59+59+5GammainWater(ResultsinpCi/1)02/05/88Co-60Zn-65Ru-106Cs-134Cs-13767676591838593938963695385858169+594+9.4105+10.564+594+506/03/88lo/07/88Cr-51Co-60*Zn-65Ru-106Cs-134Cs-137*Cr-51Co-60Zn-65Ru-106Cs-134Cs-137303363339333432117ill115198199204262522343938210200280353433162159164130124121252425222524302+3015+5101+10195+2020+525+5251+2525+5151+15152+1525+515+5Iodine-131 inWater(ResultsinpCi/1)04/08/88I-131*Samplelostby7.5+0.75leakageinshipment08/05/8812/09/88I-131*I-131941009611611711576+8115+12Averageofresultsreportedexceeding

+2sigma,seeattachednotes.

'tllPl~(

TABLEXIII(Cont'd)EPAINTERLABORATORY COMPARISON PROGRAM-1988DateAirFilters03/25/88(ResultsinpCi/filter) 08/26/88SampleA~nalsisAlphaBetaCs-137AlphaBetaCs-137Experimental Data242221595857162128999272728131711EPAValue~1020+550+516+58+529+512+5Milk(ResultsinpCi/1)02/26/8806/24/8810/28/88I-131*I-131Cs-137K-40I-131Cs-137K-402421078713059625916001590158087'93875453521630170017504+0.494+951+51600+8091+950+51600+80TritiuminWater(ResultsinpCi/1)02/12/8806/10/8810/14/88H-3H-3*H-3*3130296026904380374044052800326031903327+3625565+5572316+350*Averageofresultsreportedexceeding

+2sigma,seeattachednotes.

C"llgE1K'T TABLEXIIINOTES:GammainWaterIodine-131 inWaterIodine-131 inMilk6/03/888/05/882/26/88Cs-134andCs-137weregreaterthan+2sigmafromtheknownvalue.Aplasticcountingmarinelli usedforpreviousEPAsampleswasusedandnoback-groundforcontamination wassubtracted.

Aftersubtraction ofbackground contamination theresultswouldstillbehighbutwithin+2sigma.NoapparentreasonwhythegammascanforI-131showedaresultgreaterthan+2sigma.Arecheckofthecalibration showednoappreciable changeintheefficiency fortheI-131'-'"peakenergyor"areaasdetermined bythecomputerprogram.Thereplication ofresultswaspoorwithonevalueequalling theknownandtwobeinglow.Nospecificcausecouldbedetermined.

TritiuminWater6/10/8810/14/88Thelowcountingratesmeanasmallvariation inbackground canchangethecalculation bylargepercentages.

Thewrongbackground valuemayhavebeenusedforthecalculation causingthecalculated valuetobeeitherloworhigh.