ML17244A541

Offsite Dose Calculating Manual

ML17244A541
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Site:	Ginna
Issue date:	05/29/1979
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OffsiteDoseCalculatin HanualforGinnaStationIIgemmmmE MI'lmfll.ES-Gb2M+g@s-z'H9gqo&Q50'Z5g

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B'~XiJ%7X";ll N~',rglg'3/fi GinnaStationOffsiteDoseCalculatin ManualTABLEOFCONTENTSRadiological EffluentTechnical Specification SectionDoseCalculation ManualPAGE83.5.34.12.1I.LiquidEffluentMonitorSetpoints 3.5.34,12.2II.GaseousEffluentMonitorSetpoints 3.9.1.1LiquidEffluentReleaseConcen-trations3.9.1.23.9.1.35.5.1IV.V.LiquidEffluentDoseLiquidWasteTreatment andOperability 10123.9.2.13'.9.2.2VI.GaseousEffluentDoseRateVII.GaseousEffluentDoses14153.9.2.35.5.25.5.3VIII.GaseousWasteTreatment andOperability 174.10IX.Environmental Monitoring SampleLocations 193.9.2.4.a X.Preparation ofSpecialReporttoDemonstrate Compliance withEnvironmental Radiation Protection Standards 30 LISTOFTABLESANDFIGURES~PaeTable1DoseParameters forRadioiodines andRadioactive Particulate, GaseousEffluents Table2DoseFactorsforNobleGasesandDaughters Table3Dispersion Parameter (X/Q)forLongTermReleases, PlantVent23Table4Dispersion Parameter (D/Q)forLongTermReleases, PlantVent24Table5Dispersion Parameter (X/Q)forI,ongTermReleases, Containment 25PurgeTable6Dispersion Parameter (D/Q)forLongTermReleases, Containment 26PurgeTable7Dispersion Parameter (X/Q)forLongTermReleases, GroundVent27Table8Dispersion Parameter (D/Q)forLongTermReleases, GroundVent28Table9PathwayDoseFactorsDuetoRadionuclides OtherthanNobleGases29Figure1GinnaStationLiquidWasteTreatment System13Figure2GinnaStationGaseousWasteTreatment andVentilation Exhaust18SystemsFigure3LocationofOnsiteAirMonitorsandPostAccidentTLD's20Figure4LocationofFarmsforMilkSamplesandOntarioWaterDistrict21IntakeFigure5LocationofOffsiteAirMonitors22 C

I.LiuidEffluentHonitorSetpintsTheradiological effluentTechnical Specifications requirealarm/trip setpoints forradiation monitorsoneacheffluentline.Precautions, limitations andsetpoints applicable totheoperation ofGinnaStationliquideffluentmonitorsareprovidedinProcedures P-9andRD-13.Setpointvaluesaretobecalculated toassurethatalarmandtripactionsoccurpriortoexceeding thelimitsof10CFR20atthereleasepointtotheunrestricted area.Thecalculated alarmandtripactionsetpoints foreachradioactive liquideffluentlinemonitorandflowdetermination mustsatisfythefollowing equation:

Equation(1):cfF+fWhere:C=theeffluentconcentration limitimplementing 10CFR20forunrestricted areas,inpCi/ml.the'etpoint, inpCi/ml,oftheradioactivity monitormeasuring theradioactivity concentration inthedischarge linepriortodilutionandsubsequent, release;thesetpoint, whichisproportional tothevolumetric flowofthedilutionstreamplustheeffluentstream,represents avaluewhich,ifexceeded, wouldresultinconcentrations exceeding thelimitsof10CFR20intheunrestricted area.f=theflowasmeasuredattheradiation monitorlocat'ion, involumeperunittime,inthesameunitsasFbelow.F=Thedilutionwaterflowasdetermined priortothereleasepoint,involumeperunittime.IiquideffluentbatchreleasesfromGinnaStationaredischarged throughaliquidwastedisposalmonitor.Theliquidwastestreamisdilutedintheplantdischarge canalpriortoenteringLakeOntario.Thelimitingbatchreleaseconcentration (c)corresponding totheliquidwastemonitorsetpointiscalculated fromtheaboveexpression.

Sincethevalueof(f)isverysmallincomparison to(F),theexpression becomes:Equation(2)c<CFfWhere:themaximumpermissible concentration ofgrossbetaactivityabovebackground inthecirculating water7discharge attheunrestricted areaboundary(lx10pCi/ml.)thedilutionflowassumingoperation ofonly1cir-culatingwaterpump(200,000gpm).thewasteeffluentdischarge ratebaseduponpumpcurves.

Thelimitingreleaseconcentration (c)isthenconverted toasetpointcountratebyuseofthemonitorcalibration factordetermined perprocedure RD-13.Theexpression becomes:Equation(2a)Setpoint(cpm)=c(Ci/ml)Cal.FactorpCi/mlpercpmE~xamle(LiquidRadwaateRealtorR-18):Ifoneassumes,forexample,thattheeffluentdischarge rate,(f)is30gpm,thenthelimitingbatchreleaseconcentration (c)wouldbedetermined asfollows:c(Ci/ml)<1x10(Ci/ml)~200000(m)30gpmc<6.7x10(pCi/ml)ThemonitorR-18alarm/trip setpoint(incpm)isthendetermined utilizing themonitorcalibration factorcalculated inprocedure RD-13.Assumingacalibration

-9factorof9.5x10~(Ci/ml),thealarm/trip aetpointformonitorR-18wouldbe:cpm6.7x10(Ci/ml)7x104cm9.5x10~(Ci/ml)cpmThesetpointvaluesfortheSteamGenerator Blowdownmonitor(R-19),theRetention Tankmonitor(R-21),andtheAllVolatileTreatment wastedischarge monitor(R-22)arecalculated inasimilarmannerusingEquations (2)and(2a),substituting appropriate valuesof(f)andthecorresponding calibration factor.

II.GaseousEffluentMonitorSetpintsPrecautions, limitations andsetpoints applicable totheoperation ofGinnaStationgaseouseffluentmonitorsareprovidedinProcedures P-9andRD-13.Setpoints areconservatively established foreachventilation effluentmonitorsothatdoseratesinunrestricted areascorresponding to10CFRPart20limitswillnotbeexceeded.

Conservatism istobeincorporated intothedetermination ofeachsetpointtoaccountfor:1.Allexposurepathwaysofsignificance atthecriticalreceptorlocation; 2.Dosecontributions tothecriticalreceptorfrommultiplereleaselocations 3.Dosecontributions frommajorisotopesexpectedtobepresentineffluents.

Thegeneralmethodology forestablishing plantventilation monitorsetpoints isbaseduponaventconcentration limit(inpCi/cc)derivedfromsitespecificmeteorology andventreleasecharacteristics.

Theventconcentration limitisthenconverted tocpmorbcpmperunittimedepending upontheparticular monitor's methodofoperation, samplingrateanddetection efficiency.

A.Containment andPlantVentRadioiodine MonitorsR-10AandR-10BThecontainment andplantcharcoalcartridges whichispresent.ventradioiodine monitors(R-10AandR-10B)employfixedwillshowanincreaseincountratewhenradioiodine Thefoodandgroundplanepathwayandinfantdoseareusedasthebasisforthelimitingreleaserateandventconcentration limitforI-131.ThelimitingreleaserateforI-131isdetermined foreachventusingtheequation:

Equation(3)Where:Q.(pCi/sec.)

=1500mrem/r(piwe)thedoseparameter forradionuclide ibaseduponthemaximumorganJosefromthefoodandgroundplanepathways, inm.mrem/yrperpCi/sec.RefertoTablel.(D/e)thehighestcalculated annualaveragedispersion para-meterforestimating thedosetothecriticaloffsitereceptorfromventreleasepoint(v),inmeivthereleaserateofradionuclide ifromvent(v)whichresultsinadoserateof1500mrem/yrtothecriticaloffsitereceptororgan,inpCi/sec.

ThevalueofQl13(pCi/sec) determined forthecontainment andplantventisusedtocalculate (hecorresponding ventconcentration limitbydividingbytherespective maximumreleaseflowrateforeachvent(incc/sec.).

Finally,thecalibration factor(inpCi/ccperb,cpm/hour) thatisdetermined annuallyforeachmonitoristhenappliedtothelimitingventconcentration toarriveatacorresponding hcpm/hour valueinthefollowing manner.Equation(3a)Setpoint(cpm/hr)=iv(Ci/sec)FlowRatecc/secCal.Factor pCi/ccperhcpm/hrE~xamle(PlantVentRadioiodine MonitorR-10B):-8-2AssumingD/Q=3.0x10(m)atthecriticalreceptorlocationandsubstituting

.vtheappropriate doseparameter intoequation(3),thecalculated releaseratelimitbecomes:131(VCi/sec) 1500(mrem/

r)1.1x10(m.~mrem/yrperpCi/sec)~3.0x10(m)122-8-2QI-131=0.05(pCi/sec)

Withamaximumventreleas~2flow rateof3.77x10(cc/sec)andacalibration 7factorequalto1.72x10=(pCi/ccperhcpm/hour),

thelimitingcountratein-creaseiscalculated tobe:Limiting0.05(Ci/sec)Countrateincrease377x10(cc/sec)'.72x1012(pCi/ccpergcpm/hr)=770(cpm/hr)Iftheplantvent(R-10B)reading's rate-of-change inany15-minute periodexceeds1/4thecountrateincreaselimit,theplantcomputerwillinitiateanalarm.Also,eachradioiodine monitoralarmsetpointisfixedata(cpm)levelwhichwillalarmR-10Afollowing approximately 1hourofcontainment ventingorR-10Bafter2.25hoursofauxiliary buildingventingattheventconcentration limits.

B.Containment andPlantVentParticulates tfonitors R-llandR-13Thecontainment andp'lantventparticulate monitors(R-11andR-13)aresettoalarmwhileventingatlevelsatorbelowconcentration limitsbaseduponaverage.isotopemixtures.

Themonitorsdetectparticulate activitycollected onamovingfiltertape.Ventconcentration limitsmaybecalculated forradioactive particulates withhalf-lives greaterthan8daysbyuseofequation(3)andtheassumption thatCs-137willbethecontrolling isotope.Substituting theappropriate parameters, Equation(3)becomes:QC137pCi/sec)=1500(mrem/r)4.7x10(m.mrem/yrper/sec).D/Q(m)102pCi"2Theresulting releaseratelimitforCs-137isusedinthecalculation oftheplantventandcontainment ventconcentration limits,takingintoaccountthemaximumflowratesfromeachvent.Thecorresponding monitorcountrate(cpm)isthencalculated usingthecalibration factordetermined annuallyforeachvent,following thesamemethodexpressed inEquation(3a).

C.Containment PlantVentandAirEectorNobleGasMonitorsMonitorsR-12R-14andR-15MonitorR-12measuresnoblegasactivityincontainment whenisolated, orinthecontainment ventduringpurgereleases.

NoblegasesbeingreleasedviatheplantventaredetectedbyR-14.MonitorR-15ontheairejectornormallyindicates onlybackground

activity, howeveritservesasoneofthefirstmeansfordetection ofprimary-to-secondary leakage.Thereleaseratelimitfornoblegasesshallbecalculated bythefollowing equa-tionfortotalbodydose:Equation(4)g.(pCi/sec)

=500(mrem/r)ivK.(mrem/yrperpCi/m)X/Q(sec/m)33andbythefollowing equationforskindoses:Equation(5)Q.(pCi/sec)

=3000(mrem/r)(L.+1.1M.)(mrem/yrperpCi/m)~X/g(sec/m)33Where:K.=Thetotalbodydosefactorduetogammaemissions foreachidentified noblegasradionuclide, inmrem/yrperpCi/mfromTable2.L.=Theskindosefactorduetobetaemissions f~reachidentified noblegasradionuclide, inmrem/yrperpCi/mfromTable2.M.=Theairdosefactorduetogammaemissions f~reachidentified noblegasradionuclide, inmrad/yrperpCi/mfromTable2(unitconversion constantof1.1mrem/mrad convertsairdosetoskindose).X/Q=Thehighestcalculated annualaveragedispersion parameter vforestimating thedosetothecriticaloffsitereceptorfromventreleasepoint(v),insec/m.(}.=thereleaserateofradionuclide ifromvent(v)whichivresultsinadoserateof500mrem/yrtothewholebodyor3000mrem/yrtotheskinofthecriticalreceptor, inpCi/sec,Xenon-133istheprincipal noblegasreleasedfromallventsandisappropriate foruseasthereference isotopeforestablishing monitorsetpoints.

ThewholebodydosewillbethemostlimitingandtheXe-133releaseratelimitiscalculated bysubstituting theappropriate valuesinEquation(4).AfterthereleaseratelimitforXe-133isdetermined foreachvent,thecorresponding ventconcentration limitsarecalculated basedonmaximumventflowrates.Annually-derived monitorcalibration factors(pCi/ccpercpm)convertlimitingventconcentrations tocountratefollowing thesamemethodexpressed inEquation(3a).

TABLE1DOSEPAEMTERSFORRADIOIODINES ANDRADIOACTIVE PARTICULATE GASEOUSEFFLUENTS~

lio-.lideP.Inhalation Pathway(mrem/rerCi/m)P.food8GroundPathways(mmrem/rerCi/sec)Radio-nuclideP.Inhalation Pathway(mrem/rerCi/m)P.FoodSGroundPathways(m~mrem/rerCi/sec)-51-54-59-58-60-65-86-89-9091-95.-95~-99~-103-106,-110m6.5E+023.6E+022.5E+042.4E+041.1E+043.2E+046.3E+041.9E+054.0E+054'E+077.0E+042.2E+041.3E+042.6E+021.6E+041.6E+053.3E+042.4E+031.1K+071.1E+097.0E+085.7E+084.6E+091.7E+101.6E+101ALOE+109.5E+101.9E+093.5E+083.6E+083.3E+083.4E+104.4E+ll1.5E+10Cd-115mSn-126Sb-125Te-127mTe-129mTe-132Cs-134Cs-136Cs-137Ba-140Ce-141Ce-144Np-239I-131I-133Unidentified 7.0E+041.2E+061.5E+043.8E+043.2E+041.0E+037.0E+051.3E+056.1E+055.6E+042.2E+041.5E+052.5E+041.5E+073.6E+064.1K+074.8E+071.1E+091.1E+097.4E+101.3E+097.2E+075.3E+105.4E+094.7E+102.4E+088.7E+076.5E+082.5E+061.1E+129.6E+099.5E+10,helisteddoseparameters areforradionuclides thatmaybedetectedingaseouseffluents.

Additional doseparameters orisotopesnotincludedinTable1maybecalculated usingthemethodology described inNUREG-0133.

TABLE2DOSEFACTORSFORNOBLEGASESANDDAUGHTERS:"

~dionuclide

.-83m:-85m--85=-87-88--89-"-90-131m133m-133135m135-137-138<<-41TotalBodyDoseFactorK.3.(mrem/rerCi/m)7.56E-02'<1.17K+031.61E+Ol5.92E+031.47E+041.66E+041.56E+049.15E+012.51E+022.94E+023.12E+031.81E+031.42E+038.83E+038.84E+03SkinDoseFactorL.3(mrem/rerCi/m)1.46E+031.34E+039.73E+032.37E+031.01E+047.29E+034.76E+029.94E+023.06E+027.11E+021.86E+031.22E+044.13E+032.69E+03GammaAirDoseFactorM.i(mrad/rerCi/m)1.93E+011.23E+031.72E+016.17E+031.52E+041.73E+041.63E+041.56E+023.27E+023.53E+023.36E+031.92E+031.51E+039.21E+039.30E+03BetaAirDoseFactorN.(mrad/rerCi/m)2.88E+021.97E+031.95E+031.03E+042.93E+031.06E+047.83E+031.11E+031.48E+031.05E+037.39E+022.46K+031.27E+044.75E+033.28E+03"Shelisteddosefactorsareforradionuclides thatmaybedetectedingaseouseffluents.

"7.56E-02

=7.56x10 III.LiuidEffluentReleaseConcentrations Liquidbatchreleasesarecontrolled individually andeachbatchreleaseisauthorized baseduponsampleanalysisandtheexistingdilutionflowinthedischarge canal.Plantprocedures RD-7andRD-8establish themethodsforsamplingandanalysisofeachbatchpriortorelease.Areleaseratelimit,derivedfromEquation(1),iscalculated foreachbatchbaseduponsampleanalysis, dilutionflowandallprocedural conditions beingmetbeforeitisauthorized forrelease.Thewasteeffluentstreamenteringthedischarge canalismonitored andwillauto-matically terminate thereleaseifthepre-selected monitorsetpointisexceeded.

(SeeSectionI.)Ifgrossbetaanalysisisperformed foreachbatchreleaseinlieuofgammaisotopicanalysis, thenaweeklycomposite forprincipal gammaemittersandI-131isperformed.

Additional monthlyandquarterly composite analysesaretobeperformed asspecified inTable4.12-1oftheGinnaTechnical Specifications.

IV,LiuidEffluentDoseThedosecontribution receivedbythemaximally exposedindividual fromtheingestion ofIakeOntariofishanddrinkingwaterisdetermined usingthefollow-ingmethodology.

Thesecalculations willassumeanearfielddilutionfactorof1.0inevaluating thefishpathwaydose,andadilutionfactorof20betweentheplantdischarge andtheOntarioWaterDistrictdrinkingwaterintakelocation(Figure4).Dosecontributions fromshoreline recreation, boatingandswimminghavebeenshowntobenegligible intheAppendixIdoseanalysis(June,1976)anddonotneedtoberoutinely evaluated.

Thefollowing expression isusedtocalculate ingestion pathwaydosecontributions mforthetotalreleaseperiod<ghtfromallradionuclides identified inliquideffluents releasedtounrestricted areas:Equation(6)mD=X[AiZdt~Ci~F~]i2=1Where:Dthecumulative dosecommitment tothetotalbodyoranyorgan,t,fromtheliquideffluents forthetotaltimeperiodinmrem.mZht~)R=1thelengthofthe2thtimeperiodoverwhichC.<andF<areaveragedforallliquidreleases, inhours.theaverageconcentration ofradionuclide, i,inundiluted liquideffluentduringtimeperiodbt>fromanyliquidrelease,inpCi/ml.A.1'Ethesite-related ingestion dosecommitment factortothetotalbodyoranyorgantforeachidentified principal gammaandbetaemitterinmrem/hrperpCi/ml.SeeEquation(7).thedischarge canaldilutionfactorforC.duringanyliquideffluentrelease.Definedastheratiookthemaximumundiluted liquidwasteflowduringreleasetotheaverageflowfromthesitedischarge structure tounrestricted receiving waters.Thedilutionfactorwilldependonthenumberofcirculation pumpsoperating andduringicingconditions thepercentage openingoftherecirculating gate.10 Where:Equation(7)A.=k(U/D+UFBF.)DF.A.=thesite-related ingestion dosecommitment factortothetotalbodyortoanyorgan,x,foreachidentified principal gammaandbetaemitter,inmrem/hrperpCi/ml.k=unitsconversion factor,1.14x10=10pCi/pCix10ml/kg-.56..38760hr/yr.U=areceptorperson'swaterconsumption byagegroupfromtableE"5ofRegulatory Guide1.109.D=Dilutionfactorfromthenearfieldareaofthereleasepointwtopotablewaterintake.Thesitespecificdilutionfactoris20,takenfromAppendixB,GinnaStationEnvironmental Report(August1972).Thisfactorisassumedtobe1.0'forthefishingestion pathway.UF=areceptorperson'sfishconsumption byagegroupfromtableE-5ofRegulatory Guide1,109.BF.=Bioaccumulation factorfornuclide,i,infishpCi/kgperPCi/2,fromTableA-1ofRegulatory Guide1.109.DF=Doseconversion factorfornuclide,i,forareceptorperson1inpre-selected organ,t,inmrem/pCi, fromTablesE-ll,E-12,E-13,E-14ofRegulatory Guide1.109.Theprojected monthlydosecontribution fromreleasesforwhichradionuclide con-centrations aredetermined byperiodiccomposite sampleanalysismaybeapproxi-matedbyassuminganaveragemonthlyconcentration basedonthepreviousmonthlyorquarterly composite analyses.

However,forreporting

purposes, thecalculated dosecontributions fromtheseradionuclides shallbebasedontheactualcomposite analyses.

11 V.LiuidWasteTreatment and0erabilitThedosecontribution tothemaximally exposedindividual fromliquideffluentreleasesisprojected onceeachmonthforthesubsequent 31-dayperiodtodeter-minethenecessity foroperating theliquidradwastetreatment system.Thedoseprojection istobebaseduponanestimateofthenumberoftankreleasesandlevelofuntreated liquidwasteactivitywhichcouldbedischarged overtheen-suing31days.Thenumberofreleasesisestimated fromanhistorical averagenumberofIaundryTankandWasteCondensate Tankreleasesforcomparable reactoroperating periods.Averagetankradioactivity concentrations aresimilarly deter-minedbyhistorical averaging.

Themaximumindividual totalbodyandorgandosecommitments arethencalculated usingEquation(6).Whenthe31-dayprojected dosecommitment forpredicted releasesexceeds0.06mremtothetotalbodyor0.2mremtoanyorgan,appropriate equipment intheliquidradwastesystemshallbeusedtoreducethequantities ofradioactive materialinliquideffluents tobereleased.

Liquidradioactive wastesaregenerally treatedbytheliquidradwastesystemasdefinedinsection5.5.1oftheGinnaTechnical Specifications, therequirement forliquidradwastetreatment willbesatisfied byroutineplantpractices.

ThesesystemsareshowninFigure1.If,duringthe31-dayperiod,greateroperational flexibility wouldbeachievedbysuspending treatment ofagivenwastebatchpriortorelease,adoseevaluation mustbeper-formedtodemonstrate compliance withTechnical Specification requirement 3.9.1.3.a.

Thedoseevaluation mustshowthatthecalculated dose.contribution fromtheuntreated batch,whenaddedtothecumulative dosefromearlierreleasesduringthemonth,doesnotexceed0.06mremtothetotalbodyor0.2mremtoanyorgan.Ifthisandallotherprocedural requirements aremet,thebatchmaybeauthorized forreleasewithouttreatment.

12 4FIGUREGINNASTATIONLIQUIDWASTETREATMENT SYSTEMLIQUIDWASTEWASTEHOLDUPTANKWASTEEVAPORATOR MIXEDBEDDEMINERAL-IZERTOWASTECONDENSATE TANKSROUNITDETERGENT WASTES VI.GaseousEffluentDoseRateGaseouseffluentmonitorsetpoints asdescribed inSectionIIofthismanualareestablished atconcentrations whichpermitsome'argin forcorrective actiontobetakenbeforeexceeding offsitedoseratescorresponding to10CFRPart20limitations.

Plantprocedures RD-l.l,RD-1.2,RD-1.3,RD-2;RD-3,RD-5andRD-12establish themethodsforsamplingandanalysisforcontinuous ventilation releasesandforcontainment purgereleases.

Plantprocedure RD-6establishes themethodsforsamplingandanalysispriortogasdecaytankreleases.

Thedoserateinun-restricted areasduetoradioactive materials releasedingaseouseffluents maybeaveragedovera24-hourperiodandshallbedetermined usingthefollowing expressions:

Equation(8)D=X[K(X/Q)Q.)(tototalbody)Equation(9)D=Z[(Li+1.1>1i)(X/Q)Qi](totheskin)3.Equation(10)D=Z[P.VQ.)i(critical organ)K.=Thetotalbodydosefactorduetogammaemissions fore~ch3.identified noblegasradionuclide, inmrem/yrperpCi/mfromTable2.Theskindosefactorduetobetaemissions f~reachidentified noblegasradionuclide, inmrem/yrperpCi/mfromTable2.Theairdosefactorduetogammaemissions f~reachidentified noblegasradionuclide, inmrad/yrperpCi/mfromTable2(unitconversion constantof1.1mrem/mrad convertsairdosetoskindose).P.Thedoseparameter forradionuclides otherthannoblegasesfortheinhalation/pathway, inmrem/yrperpCi/mandforfoodandgroundplanepathways, inm~mrem/yrperpCi/secfromTable1.Thedosefactorsarebasedonthecriticalindividual organandmostrestrictive agegroup.(X/Q)vThehighestcalculated annualaveragerelativeconcentration foranyareaatorbeyondtheunrestricted areaboundary, insec/m.Thehighestannualaveragedispersion parameter forestimating thedosetothecriticalreceptor; insec/mfortheinhalation pathway,andinmforthefoodandgroundpathways.

Qiv,thereleaserateofradionuclide ifromvent(v),inpCi/sec.14 VII.GaseousEffluentDosesTheairdoseinunrestricted areasduetonoblegasesreleasedingaseouseffluents fromthesiteshallbedetermined usingthefollowing expressions:

Duringanydesiredtimeperiod,forgammaradiation:

Equation(11)D=3.17x10Z[v.(X/Q),Qi,],and-8Duringanydesiredtimeperiod,forbetaradiation:

Equation(12)Dp=3.17.10'[N.(X/Q)vQiv]-dWhere:The-airdosefactorduetogammaemissions f~reachidentified noblegasradionuclide, inmrad/yrperpCi/mfromTable2.N.Theairdosefactorduetobetaemissions fogeachidentified noblegasradionuclide, inmrad/yrperpCi/mfromTable2,(x/Q)Forventreleases.

Thehighestcalculated annualaveragerelativeconcentration foranyaregatorbeyondtheun-restricted areaboundary, insec/m.Thetotalgammaairdosefromgaseouseffluents, inmrad,forthedesiredtimeperiod.Thetotalbetaairdosefromgaseouseffluents, inmrad,forthedesiredtimeperiod.Q.=Thereleaseofnoblegasradionuclides, i,ingaseouseffluents fromallvents,inpCi.Releasesshallbecumulative overthedesiredtimeperiod.3.17x10=Theinverseofthenumberofsecondsinayear.-815 Thedosetoanindividual fromradioiodines andradioactive materials inpar-ticulateformwithhalf-lives greaterthan8daysingaseouseffluents releasedfromthesitetounrestricted areasshallbedetermined usingthefollowing

.expression:

Duringanydesiredtimeperiod:Equation(13)DI3.17x10XR.~WQ-8Where:~iv=Thereleaseofradioiodines, andradioactive materials inparticulate formingaseouseffluents, i,withhalf-lives greaterthan8days,inpCi.Releasesshallbecumulative overthedesiredtimeperiodasappropriate.

DIThetotaldosefromradioiodines andradioactive materials inparticulate formwithhalf-lives greaterthan8daysingaseouseffluents, inmrem,forthedesiredtimeperiod.WvTheannualaveragedispersion parameter forestimating thedgsetoanindividual atthecriticallogation; insec/mfortheinhalation pathway,andinmforthefoodandgroundpathways.

R.=T)edosefactorforeachidentified radionucljde, i,inm~mrem/yrperpCi/secormrem/yrperpCi/mfromTable9.16 VIII.GaseousWasteTreatment and0erabilitNormalplantprocedures andpractices callfortreatment ofgaseouseffluents priortorelease,usingtheappropriate wastetreatment systemsdescribed inSection5.5ofGinnaTechnical Specifications.

TheseareshowninFigure2.17 FIGURE2GINNASTATIONGASEOUSWASTETREATMENT ANDVENTILATION EXHAUSTSYSTEMSGASEOUSWASTETREATMENT SYSTEMFROMCVCSYSTEMTWOCOMPRESSORSFOURDECAYTANKSTOPLANTVENT12,500cfm(1fan)CONTAINMENT PURGECHARCOALANDHEPAFILTERSREACTORCONTAINMENT 25,000cfm(2fans)TOCONTAINMENT VENTAUXILIARY BUlLDINGVENTILATION SYSTEMAUXBLDG"G"FILTERUNITSAC0,000cfm~TOPLANTVENTAUXBLDG"A"FILTERUNITSCFNOTE:A=HEPAFILTERSC=CHARCOALFILTERSF=FANS IX.Environmental MonitorSamleLocations Figure3showstheonsiteindicator samplelocations forairborneparticulates, radioiodine anddirectradiation.

Respective samplelocations arespecified below.Alsoindicated onFigure3istheonsitevegetable garden,aswellastheplacement ofpost-accident TLD's(locations 13-24).TheonsitegardenislocatedinthesectorhavingthehighestD/(}valuenearthesiteboundary.

Figure4givesthelocationoftheonlymilkherdswithin5milesoftheplant.OnthismapisalsoincludedtheOntarioWaterDistrictintakepumpingstationwherelakewaterissampledpriortotreatment.

Figure5showstheoffsitecontrolsamplelocations forairborneparticulates, radioiodine anddirectradiation.

Samplestations9and11aresituatednearpopulation centers(WebsterandWilliamson) locatedapproximately 7milesfromtheGinnasite.KetoFiures3and5:T~eRadioiodine:

Particulate:

3indicator 1control5indicator 2controlLocationg3,4and7k)9jI3,4,5,6and7$/8and12DirectRadiation:

6indicator 2control,g2,3,4,5,6,and7jj8and12Note:Maplocations notspecified abovemayserveas'additional samplinglocations ifrequired.

19 FIGURE3LAKEONTARIO-jj(1.cogl05/6-'-=-"gs;"xsswsrrg gamyIlr~(5.r.g2OnsiteGardenru1,r'QPl'22ONSITEAIRMONITOROPOST"ACCIDENT TLDr-,JX/~-/($~-~~03,-)iVTr-'

fOuAMILETwOTffAEEMllEMfLEff~JflIfIIoeffONEMll.ELnKEPIG4GINNnSITFLAKEONTARIOOntarioWaterDistrictPuTNnMgffEPffEAO A0OcOOSTONAOn0O0VlBRICKCHuACHA0ftOn0GEELEYAO4)C)cnla)0OO((OCAGROn0aJ.VlLILJTYK0ZKENYONYLI0Gl0:4JXLJzAOnLf):4JZI/14.0Nl0nCbCbIJSTriTiIfffGHNAvAouEl0MILKSAIIPLESTATIONWATERSAMPLESTATIONLnNE Il)ONIOFFSET)2AII(hfONITOR2Isrn()OI)

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TABLDISPERSION PARAMETER (DQ)FORLONGTERMRELEASES>500HRYROR>125HRQTRPlantVentDistancetothecontrollocation, inmilesSector"0-0.50.5-1..01.0.-1.51,5.-.2..0.2..0-2..5.2.5-3..03,.0-3..53.5-4.04.0-4.54.5-5.0KAMENEENESSE'SNASHEWEMR<8.3E-8l.7E-84.5E-S1.0E-86.5E-81.5E-88.3E-S1.8E-81.4E-72.9E-81.4E-73.0E-81.3E-72.7E-85.8E-81.4E-82.8E-88.6E-93.1E-87.8E-94.5E-81.0E-85.6E-81.3E-84.2E-81.0E-8'.2E-85.9E-91.5E-84.1E-94.0Z-S9.2E-96.1E-93.7E-95.4E-96.4E-91.0E-81.1E-89.3E-94.7E-93.1E-93.1E-93.6E-94.6E-93.9'E-92.4E-91.7E-93.5E-92.5E-.91.2E-.91.5E-97.0E-.102.2E-91.0E-92.6E-91.2E-.94.2E-91.9E=94.3E-91.9E-93.7E-9X.7E-91.9E-9"8.9E-101.3E-95.8E-101.3E-95.9E-101.5E-96.8E-101.8E-98.4E-101.6E-97.4E-101.0E-94.7E-107.0E-103.3E-101.4E-96.6Elo7.3E-.lo4.4g-1065;E-107.5E-101.2E-91.2E-91.0E-95.6E-103.8E-103.7E-104.4E-lo5.3E-104.7E-103.0E-102.1E-104.2E-lo5.1E=lo4-1E-.lo2.9E-.lo3,1Elo2.4E-.lo1.8E-104.5E-lo3.6E-102.6E-105.3E-104.1E-103.1E-108.6E-106.7E-104.8E-lo8.7E-106.7E-lo5.2E-lo7.7E-106.1E-104.6E-104.1E-lo3.-5E-102.7E-102.9E-102.4E-101.8E-lo2.7E-102.2E-101.8E-103.1E-102.5E-101.9E-103.7E-102.9E-102.1E-103.3E-102.6E-101.9E-102.1E-101.7E-101.3E-101.5E-101.2E-108.8E-ll2.9E-102.3E-101.7E-102.5E-101.5E-102.2E-102.6E-104.1E-104.5E-104.0E-102.3E-10l.6E-101.5E-101.6E-101.8Z-101.6E-101.0E-107.4E-111.4E-10 TABL5DISPERSION PARAMETER (X/Q)FORLONGTERMRELEASES>500HR/YROR>125HR/QTRc'ontainment PureDistancetothecontrollocation, inmilesSector"0-0.50.5-1.0l..0;.1,51.5.-2..0.2..0-2..5.2.5-3..03..0.>>3..53.5-4.04.0-4.54.5-5.0NNEglESESSESSPJSNNSN3.7E-61.2E-67.2E-73.1E-61.0E-66.6E-74.1E-61.4E-69.0E-73.9E-61.3E-67.7E-74.9E-61.6E-68.8E-74.3E-61.5E-64.2E-61.2E-69.1E-76.1E-72.3E-69.7E-74.6E-71.3E-67.7E-74.1E-71.2E-64.5E-73.3E-71.3E-64.1E-72.7E-71.7E-65.3E-73.2E-71.7E-67.2E-74.4E-71.2E-66.0E-73.9E-78.5E-74.4E-73.0E-71.8E-67.0E-74.4E-73.6E-73.5E-74.7E-73.9E-74.1E-73.9E-72.8E-72.2E-71.9E-71.7E-71.3E-71.5E-72.1E-72.0E-71.6E-72.2E-72.0E-71.4E-71.1E-72.0E-72.7E-71.52.0~E-71.2E-7E-71.6E-72.1E-71.5E-71.2E-72.2E-71.5.E-71.2E-72.0E-71.4E-71.49.9E-71.1,E-7E-88.0E-81.2E-78.1E-86.1E-8l.0E-77.4E-8S.8E-89.5E-86.7E-85.3E-87.3E-85.2E-84.1E-88.6E-86.0E-84.5E-81.2E-78.6E-86.6E-81.1E-78.2E-86.3E-88.9Z-86.5E-85.1E-81.2E-79.0E-87.1E-89.6E-88.1E-87.1E-81.0E-78.9E-87.9E-81.3E-71.1E-71.0E-71.0E-78.5E-87.5E-81.0E-78.3E-87.3E-88.6E-87.4E-86.4E-86.5E-85.4E-84.6E-85.0E-84.0E<<83.4E-84.7E-83.8E-83.2E-84.5E-83.7E-83.2E-83.4E-82.7E-82.3E-83.8E-83.2E-82.8E-85.5E-84.6E-84.0E-85.3E-84.5E-83.9E-84.3E-83.5E-83.2E-86.0E-85.0E-84.4E-8*Qwvor+whv[71hR41h'T>Ts1'Ato 0~s~~aa~a~~~~e0~0~Q~~~I~I~II~~I~~g~I~I~~II~~~I~~

TABLDISPERSION PARAMETER (X/Q)FORLONGTEBHRELEASES>500HR/YROR>125HR/QTRGroundVent,Distancetothecontrollocation, inmilesSector*0-0.50.5-3..01..0.-.1,.51,5.-.2..0.2.0-2...5.2.,5-3..03..0-3..53.5-4.04.0-4.54.5-5.0ENEESES"SSSh'.4E-5S.5E-56.5E-54.4E-53.7E-52.6E>>51.7E-51.3E-51.2E-51.2E-59.7E-61.4E-52.5E-52.4E-52.1E-52.9E-58.2E-61.0E-51.2E-58.3E-67.1E-64.8E-63.1E-62.4E-62.2E-62.1E-61.7E-62.4E-64.5E-64.6E-64.0E-65.4E-63.4E-61.4E-66-9E-74.2E-61.8E-68.7E-75.1E-62.1E-61.0E-63.5E-61.4E-66.9E-72.9E-61.2E-6S.7E-72.0E-67.8E-73.8E-71.3E-65.0E-72;4E-79.5E-73.7E-71.8E-79.0E-73.5E-71.7E-78.7E-73.5E-71.7E-76.8E-72.7E-71.3E-79.9E-74.0E-71.9E-71.8E-67.5E-73.6E-71.9E-67.7E-73.7E>>71.6E-66.7E-73.3E-72.2E-69.2E-74.5E.-.74.7E-.75.9E-76.9,E-74.8E-73.7E-72.5E-71.6E-71.2E-71.1E-71.1E-78.7E-81.3E-72.4E-72.5E-72.2E-73.0E-73.4g.74.3E-72.7E-.'7,3.5E-72.2E-72.9E-7S.lE-74.1E-73.4E-73.4E-72.8E-72.8E-72.2E-72.2E-71.8E-71.6E-72.2E-71.3E-71.1E-71.8E-71.5E-71.8E-71.5E-71.1E-71.1E-79.3E-87.6E-88.6E-870E-85.7E-88.4E-86.7E-85.4E-88.3E-86.6E-85.4E-86.3E-85.1E-84.1E-89.3E-87.6E-86.3E-81.8E-71.4E-71.1E-71.8E-71.5E-71.2E-7l.9E-72.4E-72.8E-71.9E-71.5E-79.9'-86.3E-84.6E-84.5E-84.5E-83.4E-85.2E-89.8E-89.7E-88.8E-81.2E-7*Direction windblowsinto TABL84DXSPERSXON PARAMETER (DQ)FORLONGTERNRELEASES>500HR/YROR>125HR/QTRGroundVentDistancetothecontrollocation, inmilesSector0-0.50.5-1.0l..0.-1,51,5.-2..0.2.0-2...5.2.5-3..03.0-3.53.5-4.04.0-4.54.5-5.0ONENESSESSNhSNhW<2.0E-71.8E-72.5E-72.1E-72.5E-72.2E-71.8E-79.8E-86.8E-86.7E-87.6E-89.9E-81.1E-78.9E-87.0E-81.2E-73.7E-83.4E-84.5E-83.9E-84.6E-84.1E-83.7E-81.8E-81.3E-81.2E-81.4E-81.8E-82.0E-81.6E-81.3E-81.2E-81.2E-81.1E-81.5E-81.3E-81.5E-81.3E-811E-86.0E-94.2E-94.1E-94.7E-96.1E-96.7E-95.4E-94.3E-97.1E-95.0E-92.3E-91.4E-94.5E-92.1E-96.1E-92.8E-91.3E-9l.7'E-95.3E-92.4E-91.5E-96.2E-92.8E-95.5E-92.5E-94.5E-92.1E-92.4E-91.1E-91.7E-97.7E-101.7161.:3..6;84.81.7E-91.9E-97.6E-104.78.6E-10-5.5E-9E-9E-9'-10E-10E-10E-101.5E-91.1E-9'6.9E-102.7E-91.2E-97.5E-102.2E-91.0E-96.3E-101.7E-97.9E-104.9E-101.9E-91.3E>>98.3.E-109.7E-109.0E-101.1E-91.0E-91.2E-9.1.1E-9'.0E-104.8E-103.3E-103.3E-103.8E-104.9E-105.4E-104.3E-103.4E-105.7E-103.3E-102.6E-102.5E-102.0E-104.4E-103.2E-102.1E-101.6E-102.7E-107.6E-105.5E-104.7E-106.9E-105.0E-104.3E-109.2E-106.9E-105.8E-108.0E-106.0E-105.0E-109.4E-107.0E-105.8E-108.4E-106.3E-105.2E-106.9E-105.1E-104.3E-103.7E-102.7E-102.3E-102.6E-101.9E-101.6E-102.5E-101.8E-101.5E-102.9E-102.1E-101.7E-103.7E-102.8E-102.3E-104.1E-103.0E-102.5E-10 TABLE9PATHWAYDOSEFACTORSDUETORADIONUCLIDES OTHERTHANNOBLEGASES"-Radio-nuclideH-3CR-51HN-54FE-59CO-58CO-60ZN-65SR-89SR-90ZR-95I-131I-133CS-134CS-136CS-137BA-140CE-141Inhalation Pathwayi(mrem/yrerCi/m)1.12E031.70E041.57E061.27E061.10E067.06E069.94E052.15E061.01E082.23E061.62E073.84E061.01E061.71E059'5E051.74E065.43E05HeatPathwayl.(51mrem/yrerCi/sec)2.33E024.98E057.60E066.49E089.49E073.61E081.05E094.89E081.01E106.09E082.60E096.45E011.42E095.06E071.27E095.00E071.45E07GroundPlanePat/wayi(m.mrem/yrerCi/sec)0.5.31E061.56E093.09E084.27E082.44E108.28E082.42E040.2.73E081.01E071.43E067.70E091.64E031.15E102.26E071.48E07Cow-1iilk-Infant Pathwayi(m.mrem/yr/'**)2.38E035.75E063.70E074.01E087.01E072.25E081.99E101.28E101.19E108.76E054.95E114.62E096.37E106.61E095.75E102.75E081.43E07LeafyVegetables Pat/way2(mmrem/yr)/2.47E021.63E065.38E071.10E084.55E071.54E082.24E085.39E099.85E101.13E082.08E103.88E081.96E091.60E081.80E092.03E088.99E07-Additional dosefactorsforisotopesnotincludedin.Table9maybecalculated usingthemethodology described inNUREG-0133.

h~1tC IX.PrearationofSecialReorttoDemonstrate ComliancewithEnvironmental Radiation Protection Standards GinnaTechnical Specification 3.9.2.4.a requiresthepreparation andsubmittal ofaSpecialReporttotheCommission whencalculated effluentreleasedosesexceedtwicethelimitsofSpecifications 3.9.1.2.a, 3.9.2.2.a or3.9.2.2.b.

Inaddition, subsequent releasesaretobelimitedsuchthatthedoseordosecommitment toarealindividual fromalluraniumfuelcyclesourcesislimitedto<25mremtothetotalbodyoranyorgan(exceptthethyroid,whichislimitedto<75mrem)over12consecutive months.Thisincludesthedosecontributions fromthethecalendarquarterinwhichthelimitswereexceededandthesubsequent 3calendarquarters.

Thefollowing generalguidelines arepresented forpreparation oftheSpecialReport:1)Themaximally exposedrealmemberofthepublicwillgenerally bethesameindividual considered intheTechnical Specification; 2)Dosecontributions tothemaximally exposedindividual needonlybeconsidered tobethoseresulting fromtheGinnaplantitself.Allotheruraniumfuelcyclefacilities oroperations areofsufficient distancetocontribute anegligible portionoftheindividual's dose.3)Fordetermining thetotaldosetothemaximally exposedindividual fromthemajorgaseousandliquideffluentpathwaysandfromdirectradiation, doseevaluation techniques usedinpreparing theSpecialReportmaybethosedescribed inthismanualorotherapplicable methodswhereappropriate.

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