ML17262B109

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Draft Rochester Gas & Electric Corp Ginna Station Emergency Preparedness Exercise Manual 1992 Plume Exposure Emergency Preparedness Exercise.
ML17262B109
Person / Time
Site: Ginna Constellation icon.png
Issue date: 10/08/1992
From: BACKUS W H, POLFLEIT P S
ROCHESTER GAS & ELECTRIC CORP.
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ML17262B108 List:
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NUDOCS 9212220177
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THEROCHESTER GASANDELECTRICCORPORATION GZNNASTATIONEMERGENCY PREPAREDNESS EXERCISEMANUAL1992PLUMEEXPOSUREEMERGENCY PREPAREDNESS EXERCISEOctober8,1992PrearedBy:PeteS.PolfleitWeyH.BackusReviewedBy:RichardJ.WattsApprovedBy:RarJ.Beldue(Emergency PlnningMilestone Committee)

COIROLLRD COPYKO~9212220177 920722PDRADOCK05000244FPDRI-1 SCOPE~()ggpgyyypg J

1~0SCOPEANDONSITEOBJECTIVES PLUMEEXPOSUREPATHWAY'~1~8aoeThe1992Emergency Preparedness PlumeExposurePathwayExercisewillsimulateaccidenteventsculminating inaradiological accidentresulting intheactivation ofonsiteandoffsitefacilities.

TheExercisewillinvolveeventsthattesttheeffectiveness oftheGinnaStationEmergency Preparedness Programandtheintegrated capabilities ofcertainelementsoftheStateofNewYork,WayneCountyandMonroeCountyemergency organizations.

TheExercisewillincludethepartialmobilization ofstateandlocalresources toadequately verifytheircapability torespondtoanaccidentattheGinnaNuclearPowerPlant.1~2OnsiteOb'ectives forthe1992GinnaEvaluated PlumeExosurePathwaExercise1~2~11~2~21~2~31'+41~2~51~2~61~2~7Themajorobjective oftheExerciseistodemonstrate theresponsecapabilities oftheRochester GasandElectricCorporation Emergency Organization.

Withinthisoverallobjective, numerousindividual objectives arespecified asfollows:Demonstrate theabilitytomobilize, staffandactivateEmergency ResponseFacilities promptly.

Demonstrate theabilitytofullystafffacilities andtomaintainstaffingonanaround-the-clock basisgf-$throughtheuseofreliefshiftrosters(limitedshiftchangesmayoccurtoallowforoperational restrictions).

Demonstrate theabilitytomakedecisions andtocoordinate emergency activities.

Demonstrate theadequacyoffacilities anddisplaysandtheutilization ofprocedures tosupportemergency operations.

Demonstrate theabilitytocommunicate withallappropriate locations, organizations, andfieldpersonnel.

Demonstrate theabilitytomobilizeanddeployRadiation SurveyTeams.Demonstrate theappropriate equipment andprocedures forthedetermination ofambientradiation levels.

1~2~81~2~91~2~101~2~11Demonstrate theproperuseofappropriate equipment andprocedures formeasurement ofairborneradioiodine concentrations aslowas1.0E-7uCi/ccinthepresenceofnoblegases.Demonstrate theabilitytoprojectdosagetothepublicviaplumeexposure, basedonPlantandfielddata,andtodetermine appropriate protective

measures, basedonplantconditions, Protective ActionGuidelines, available shelter,evacuation timeestimates, expectedreleaseduration, andotherappropriate factors.Demonstrate theabilitytonotifyoffsiteofficials andagencieswithin15minutesofdeclaration ofanemergency.

Demonstrate theabilitytoperiodically updateoffsiteofficials andagenciesofthestatusoftheemergency basedondataavailable atGinnaStation.1~2~121+21312~141~2~151~216Demonstrate theabilitytonotifyemergency supportpoolsasappropriate (i.e.,INPO,ANI,etc.).Demonstrate theabilitytonotifyonsitepersonnel usingplantalarmsandpublicaddresssystems.Demonstrate theorganization's abilitytoassessplantparameters andsymptomsindicative ofdegrading plantconditions, andrelatesuchsymptomstoprescribed Emergency ActionLevels.Demonstrate theorganization's abilitytoproperlyclassifyemergency conditions.

Demonstrate theorganizational abilityandresources necessary tomanageanaccountability ofpersonnel withintherestricted area.1~2~171~2181~219Demonstrate theorganizational abilityandresources necessary tocontrolaccesstothesite.Demonstrate theabilitytocontinuously monitorandcontrolemergency workers'xposure.

Demonstrate theadequacyoffacilities anddisplaystosupporttheJointEmergency NewsCenteroperations.

/

1~2~201~2.211~2~22Demonstrate theabilitytobriefthemediainaclear,accurate, andtimelymanner.Demonstrate theabilitytoprovideadvancedcoordination ofinformation releasedtothepublic.Demonstrate theabilitytoestablish andoperaterumorcontrolinacoordinated fashion.131~2~241~2~25Demonstrate theadequacyofin-plantpost-accident samplingtechniques andanalysis.

Demonstrate theabilitytodeveloppreliminary short-term andlong-term actionstosupportplantrecovery.

Demonstrate theproperuseofback-upcommunications intheeventofselectedcommunications equipmentmalfunction.

1~2~26Demonstrate theabilitytomobilizeprincipal portionsofthelicenseeemergency organization onanoff-hours, unannounced basis.TobeerformedasamusterindrilldurinNovember199217Demonstrate theabilitytoconductapost-exercise critiquewhichadequately characterizes licenseeperformance baseduponcontroller andobserverassessments.

13SummarofPropseudActivities Table1.1providesalistofproposedRGEEactivities.

TABLE1~11992GINNASTATIONEMERGENCY PREPAREDNESS EXERCISEPLUMEEXPOSUREPROPOSEDONSITEACTIVITIES RGSENotification ofAgenciesCallUpofPersonnel ActivateOrganization MaintainSecurityConduct.DoseAssessment protective ActionRecommendations OperateJointNewsCenterDispatchFieldSurveyTeamsObtainPASSSampleActualActual*Actual>>ActualActualActualActualActual-3**

ActualCallupofpersonnel andfacilityactivation willbeperformed insequence.

Aseparate, off-hours mustering drillwillbeconducted duringtheweekofNovember9,1992.Fieldteamswillbedeployedandwilldemonstrate appropriate fieldmonitoring techniques andcommunications withrespective emergency responsefacilities.

Aminimumof1onsiteand2offsiteteamswillbedeployed.

SIMULATIONS oRespiratory protection andprotective clothingwillbesimulated byonsite/offsite surveyteams.In-Plantteam-willdonrespiratory protection andprotective clothingprescribed byHealthPhysicsandChemistry personne1according topostulated scenarioplantconditions.

oIngeneral,Exerciseparticipants shouldfollowapplied&plantprocedures ascloselyaspossible, andwillbestoppedbyControllers beforeactualequipment ismanipulated (exceptPASS).Simulated repairsandothercorrective actionsshouldbedescribed toController-

/Evaluators asfullyaspossible.

SUMMARYOFPROPOSEDOFFSITEACTIVITIES Itisanticipated thatWayneandMonroeCountiesandNewYorkStatepersonnel willparticipate toperformthefollowing minimumfunctions:

1.CommandandControl2.DoseAssessment 3.JointNewCenterStaffing4.Protective ActionDecisionmaking 5.Communications EXERCISESCENARIO GINNASTATION1992EMERGENCY PREPAREDNESS EXERCISEINITIALCONDITIONS 1~2~TheR.E.GinnaNuclearPowerPlantisoperating atapproximately 974ratedthermalpower.ThePlanthasbeenoperating atthispowerlevelcontinuously forapproximately 150days.The"A"SteamGenerator (S/G)primarytosecondary leakrateincreased approximately 5daysagotoacalculated 60cc/min.

Atapproximately 0630hoursthismorningtheprimarytosecondary leakratehasagainincreased significantly asindicated byasubstantial increaseinradiation monitorR-15(AirEjector).

Radiation monitorR-19(S/GBlowdown) hasalsoindicated anincreaseinactivity.

TheHealthPhysics/Chemistry Department isintheprocessofanalyzing samplestodetermine thecalculated leakrate.3~4~5.6.7~Equilibrium PrimaryCoolantIsotopicactivityasof0300hours(10/8/92isprovidedintable9.2ofscenarioSection9.3.Totalactivityis2.56microcuries/gram.

Chemistry LogSheet,available fromtheController.

TheReactorCoolantSystem(RCS)totalleakageis0.361GPMasof0400hoursthismorningandhasbeenincreasing.

Identified RCSLeakageis0.073GPM.Generalweatherconditions arepartlycloudywithnocurrentprecipitation.

ForpurposesoftheExercise, additional meteorological information intheSimulator ControlRoomshouldbeobtainedfromthePlantProcessComputerSystem(PPCS).ThePrimaryWaterTreatment Plantissecuredformajormaintenance thatwilltakeapproximately 3days.the100,000GallonOutsideCondensate StorageTankisat20%Level.ADemineralizer Trailerhasbeenorderedandisscheduled toarriveat1300hourstoday.TheHouseHeatingBoilerisinserviceandNuclearSteamissecured.

GINNASTATION1992EMERGENCY PREPAREDNESS EXERCISEONSITESEQUENCEOFEVENTSAPPROPRIATE SCENARIOTIMETIMEEVENTDESCRIPTION 070007150730UNUSUALEVENT-00/1500/0000/15InitialConditions established Announcement toCommenceAnnualEmergency ExerciseTheHealthPhysics/Chemistry Department informstheControlRoomthatthe"A"S/Gcalculated leakrateisapproximately 450cc/min (i.e.,=0.125gpm).ANTICIPATED RESULTSControlRoomOperators shouldbeginperforming theapplicable actionsofOperating Procedure 0-6.10(PlantOperations withSteamGenerator TubeLeakIndication).

AnorderlyPlantshutdownshouldcommencetobeinHotShutdownwithin6hoursandtobelessthan350'FintheRCSwithinthenext6hoursasrequiredbyPlant,Technical Specification.

AnUnusualEventshouldbedeclaredinaccordance withEPIP1-0,"GinnaStationEventEvaluation andClassification,"

EAL:SteamGenerator TubeRupture(SGTR);SteamGenerator TubeLeakage>.1GPMasidentified bysampling.

Appropriate offsitenotifications shouldbemadeperEPIP1-5.IfanUnusualEventnotdeclaredinapproximately 15minutes,acontingency messageshouldbegivenouttodeclareit.

APPROPRIATE SCENARIOTIMETIMEEVENTDESCRIPTION 075500/40The"A"S/GARVpopsopenandcannotbeclosedfromtheControlRoom.081000/55ANTICIPATED RESULTSControlRoomShouldsendanAuxiliary OperatortotheSteamHeaderAreatoclosetheIsolation Valveonthe"A"S/GARV.Operators performing theapplicable actionsof0-2.1.Technical SuortCenterThePlantManager,Operations Assessment Manager,andDutyEngineershouldbemanningtheTSCforOffsiteCommunications Assistance perEPIP1-5.TheAuxiliary Operatorsenttoisolatethe"A"S/GARVreportstotheControlRoomthatthe"A"S/GARVisisolated, buthehasnoticedasteamleakonthe"B"S/GARV,betweentheARVandtheARVIsolation Valve.ANTICIPATED RESULTSControlRoomShouldinformpeoplemanningtheTSCofthe"B"S/GARVLinesteamleak.MayrequestAuxiliary Operatortoisolatethe"B"S/GARV.Operators performing theapplicable actionsof0-2.1.ShouldinformthepeoplemanningtheTSCofthe"A"S/GARVproblemandisolation.

APPROPRIATE SCENARIOTIMETIMEEVENTDESCRIPTION 081501/00Technical SuortCenterMayrequestthatthe"B"S/GARVbeisolatedormaywaituntilMaintenance personnel haveinspected it.MayinformControlRoomthattheywilltakeactionstohaveMaintenance personnel inspectforthe"A"And"B"S/GARVproblems.

Annunciator G-22(ADFCSSystemTrouble)alarms.ANTICIPATED RESULTS084001/25ControlRoomOperators performtheapplicable actionsofAR-G.22.Operators shouldchecktheS/Glevelstoensureproperlevelcontrol.Operators shouldinformthepeoplemanningtheTSCandI&CDepartment oftheADFCSproblem.TheCCWSurgeTankLoLevelAlarm(AR-A-13) annunciates andtheCCWlevelindicates itisdecreasing.

ANTICIPATED RESULTSControlRoomOperators performtheapplicable actionsofAlarmResponseProcedure AR-A-13(CCWSurgeTankLoLevel41.24).Operators shouldsendanAuxiliary OperatorintotheAuxiliary BuildingtoidentifytheCCWLeak.ShouldinformthepeoplemanningtheTSCoftheCCWleak.

APPROPRIATE SCENARIOTIMETIMEEVENTDESCRIPTION 0850Ol/35Auxiliary OperatorcheckingtheCCWleakinAuxiliary BuildinginformsControlRoomthatthelACCWPumpMechanical Sealisleakingandsprayingonthepumpmotor.Therunning1ACCWPumptripsoutonovercurrent andannunciator (AR-A-17) alarms.Thestandby1BCCWpumpstartsautomatically anddeliverers requiredflow.ANTICIPATED RESULTSControlRoom0855090501/4001/45Operators performtheapplicable actionsofabnormalprocedure AP-CCW.2(LossofCCWduringpoweroperation).

Operators requesttheAuxiliary OperatorsenttoidentifytheCCWleakintheAuxiliary

Building, toisolatethesuctionanddischarge ofthe1ACCWPumpandrackoutitselectrical breaker.Operators shouldinformthepeoplemanningtheTSCofthe1ACCWPumpproblems.

TheADFCSproblemwiththeMFWRegulating Valvesisrepaired.

ANTICIPATED RESULTSControlRoomOperators continueshuttingPlantdownper0-2.1.Auxiliary Operatorisolating the1ACCWPumpinformsControlRoomthattheSuctionandDischarge Valvesareclosedandtheelectrical breakerisrackedout.NTICIPATED RESULTSControlRoomOperators shouldensurethat1ACCWPumpControlSwitchisinpullstopandCCWSurgeTanklevelhasreturnedtonormal.

APPROPRIATE SCENARIOTIMETIMEEVENTDESCRIPTION 0915ALERT02/00Thefollowing eventsoccursimultaneously:

~Pressurizer levelandpressuredecreases uncontrollably.

~Areactortripoccursautomatically fromlowpressurizer pressureorismanuallyactivated bytheoperator.

~Asafetyinjection occursautomatically fromlowpressurizer pressureorismanuallyactivated bytheoperator.

~The<<A"S/Gwaterlevelincreases uncontrollably.

~Allsafeguards equipment requiredisoperating.

ANTICIPATED RESULTSControlRoom094502/30Operators performing theimmediate actionsofE-0(Reactortriporsafetyinjection).

AnALERTshouldbedeclaredinaccordance withEPIP1-0,"GinnaStationEventEvaluation andClassification,"

EAL:SteamGenerator TubeRupture(SGTR):SGRT>100GPM.Appropriate onsiteandoffsitenotifications shouldbemadeperEPIP1-5.IfandALERTisnotdeclaredinapproximately 15minutes,acontingency messageshouldbegivenouttodeclareit.Operators transition toE-3(SteamGenerator TubeRupture)andstartperforming itsapplicable actions.AccidentResponseandEvaluation continues.

ANTICIPATED RESULTSControlRoomOperators performing theapplicable actionsofE-3(SteamGenerator TubeRupture)tostabilize thePlant.

0, APPROPRIATE TIMESCENARIOTIMEEVENTDESCRIPTION Technical SuortCenteTheTSCshouldbenearingoperational readiness oftheEmergency ResponseOrganization.

TheTSC,whenoperational, shouldsendrepairteamsintotheAuxiliary Buildingtoevaluatethe1ACCWPumpandmotorproblems.

TheTSC,whenoperational shouldsendrepairteamsouttoevaluatethe>>A>>and>>B>>S/GARVproblemsifnotalreadydone.Emerenc0erationsFacilit100002/45EOFmaybeactivating atthistimeduetoPlantconditions.

Accidentresponseandevaluation continues.

TICIPATED RESULTSControlRoomOperators performing theapplicable actionsofE-3(SteamGenerator TubeRupture)tostabilize thePlant.Technical SuortCenter101503/00TheTSCshouldbeassumingcommandandcontrol.Annunciator J-9(Safeguard BreakerTrip)Alarms.ANTICIPATED RESULTSControlRoomWhenoperators checktheBoard,the>>A>>SWPumpSwitchindicates awhitedisagreement lightandthe>>A>>SWPumpindicates tripped.Operators/TSC shouldsendanAuxiliary OperatortotheScreenHousetocheckon>>A>>SWpump.Operators shouldinformtheTSCofthe>>A>>SWPumpproblem.

APPROPRIATE SCENARIOTIMETIMEEVENTDESCRIPTION 1030SITEAREAEMERGENCY 03/15TheAuxiliary OperatorsenttotheScreenHousetocheckthe"A"SWPumpreportstotheControlRoom/TSCthathecanfindnothingwrongwiththe"A"SWPumpbuthehassmelledthestrongodorofgasthrough-outthebuildingwiththestrongest odorintheBasement.

ANTICIPATED RESULTSControlRoomShouldrequestthattheAuxiliary OperatorfindtheshutoffvalvesforthenaturalgasandpropanegastotheScreenHouseandclosethem.ShouldinformtheTSCofthegasproblemintheScreenHouse.Ifnotalreadyisolated, shouldsendanAuxiliary Operatortoisolatethe"B"S/GARVwhenrequested todo.Technical SuortCenterTheTSC,afterassessing Plantconditions, should:DeclareaSITEAREAEMERGENCY inaccordance withEPIP1-0,"GinnaStationEventEvaluation

'andClassification,"

EAL:Hazardsbeingexperienced orprojected; entryofuncontrolled flammable gasesintovitalareas.Appropriate notifications ofoffsiteagenciesshouldbemadeperEPIP1-5.IfaSiteAreaEmergency isnotdeclaredinapproximately 15minutes,acontingency messageshouldbegiventodeclareit.TSCshouldinformtheEOFofPlantconditions andtheSiteAreaEmergency Declaration.

ASiteEvacuation shouldbecommenced ifitisdetermined necessary.

APPROPRIATE TIMESCENARIOTIMEEVENTDESCRIPTION ReairTeams104503/30RepairteamsentouttochecktheCCWPumpshouldreportthatthe1ACCWPumpMechanical sealneedsreplacing andthatthe1ACCWPumpmotorneedstobecleanedanddried.Theyreportthiswilltakeapproximately 8hours.Theyalsoreportthatthe1BCCWPumpMechanical Sealisleakingasmallamount.RepairTeamsentouttocheckthe"A"S/GARVcontrolproblemshouldreportthattheARV'sMercoidcontroller needstobereplaced.

Theyreportthatitwilltakeapproximately 1hourtodo.Ifnotdoneearlier,theRepairTeamsentouttocheckthe"B"S/GARVSteamleakrequestthatitbeisolated.

Accidentresponseandevaluation continues.

Ifnotdoneearlier,theAuxiliary Operatorsentouttoisolatethe"B"S/GARVsteamleakreportsbackthatitisisolated.

ANTICIPATED RESULTSCotrolRoomOperators performing theactionsofE-3(SteamGenerator TubRupture)shouldhavestabilized thePlantatapproximately thistimeandbeawaitingdetermination bytheTSCastowhatpostSGTRcooldownprocedure touse.Ifnotdoneearlier,shouldinformtheTSCofthe"B"S/GARVsteamleakisolation.

Technical SuortCenterTheTSCshouldbeevaluating theflammable gasproblemintheScreenHouseandbetakingcorrective actionsrequiredtoreturntheScreenHousetoasafecondition.

TheTSCDoseAssessment shouldcalculate andquantifyanyreleasepathstotheenvironment.

TSCshouldhavedetermined andinformedtheControlRoomtouseES-3.1(Post-SGTR CooldownusingBackfill).

APPROPRIATE SCENARIOTIMETIMEEVENTDESCRIPTION 110003/45ReairTeamsRepairTeamsentouttocheckthe"B"S/GARVsteamleakreportsthatitappearsthatthesteamleakwasfroma>-inchholedrilledalmostthroughthepipe,andalsothataflangeisleaking.Theyreportthatitwilltakeapproximately oneandahalfhourstorepairtheleak.Condensate StorageTank(CST)levelsdecreaseto5feet.ANTICIPATED RESULTSControlRoomOperators shouldrefertoER-AFW.1(Alternate WaterSupplytoAFWPumps)perfoldoutpageofES-3.1,Statement 4,whichstates,"IfCSTleveldecreases tolessthan5feet,thenswitchtoalternate AFWsupply(RefertoER-AFW.1, Alternate WaterSupplytoAFWPumps)andperformapplicable actions.ShouldinformTSCofthelowlevelintheCSTs.TECHNICAL SUPPORTCENTERTSCevaluating Plantconditions andtakingactionwhererequired.

TSCshouldinformsecurityoftheasfoundcondition ofthe"B"S/GARVsteamleak.TSCDoseAssessment performing offsitedosecalculations asrequired.

TSCshouldbeexpediting therepairoftheS/GARVsbecauseoftheiruseduringsucheventsaslossofcondenser andPlantcooldown.

TSCshouldsendaRepairTeamtocheckoutthe"A"SWPumpproblemwhentheScreenHouseisdeclaredsafeforentry.TSCshouldinformEOFofPlantstatusandproblems.

APPROPRIATE SCENARIOTIME.TIMEEVENTDESCRIPTION

~eecuritShouldbeevaluating thedrilledholeinthe"B"S/GARVpipe.Emerenc0erationFacilit112004/05TheEOF,afteritismanned,shouldstartassessing Plantconditions andtakeactionasrequired.

The"A"S/GARVMercoidisrepairedandreadyforreturntoservice.ANTICIPATED RESULTSControlRoomOperators performing applicable actionsofES-3.1(Post-SGTR CooldownusingBackfill).

Operators performing applicable actionsER-AFW.1.

Operators shouldreturnthe"A"S/GARVtoserviceifrequested bytheTSC.Technical SuortCenterTSCevaluating Plantconditions andtakingactionswhererequired.

TSCDoseAssessment performing offsitedosecalculations asrequired.

TSCmayrequesttheControlRoomtoreturnthe"A"S/GARVtoservice.~SecuritShouldbeevaluating thedrilledholeinthenB"S/GARVpipe.Emerenc0erationsFacilitEOFshouldbeassessing Plantconditions andtakingactionasrequired.

APPROPRIATE SCENARIOTIMETIMEEVENTDESCRIPTION EOFDoseAssessment shouldbeperforming offsiteDoseAssessment, asrequired, inparallelwiththeTSCDoseAssessment.

TheEOFshouldbeassumingcommandandcontrolatapproximately thistime.ReairTeams114504/30Performing actionsasrequiredtoreturnequipment toserviceassoonaspossible.

The>>B>>S/GARVsteamleakisrepairedandreadyforreturntoservice.ANTICIPATED RESULTSControlRooOperators shouldbeperforming theapplicable actionsoftheES-3.1(Post-SGTR CooldownusingBackfill).

Technical SuortCenterTSCevaluating Plantconditions andtakingactionasrequired.

EOFevaluating Plantconditions andtakingactionasrequired.

=1230<<131505/1506/00TSCshouldrequestControlRoomtoreturnthe>>B>>S/GARVtoservice.Recover/Re-entry discussions shouldcommence.

Thisshouldincludepreliminary discussions aboutshorttermandintermediate termconcerns, including preliminary designation oftheRecoveryOrganization.

Stateandcountiesmayalsoconductparalleldiscussions.

Recovery/Re-entry interface betweenTSC/EOFandoffsiteagenciesshouldbedemonstrated astimeallows.AfterallExerciseObjectives havebeendemonstrated, theExercisewillbeterminated.

RADIOLOGICAL SRY 9.1RadioloicalSummarASourceTermTheradiological sourcetermassumedforthisscenariowasselectedtoincludeappropriate quantities ofnoblegasandradioiodine resulting fromthepostulated accidentscenario.

Protective actionrecommendations i.e.,sheltering orevacuation forcertainEmergency ResponsePlanningAreas(ERPAs)willnotberequiredbasedupontheanticipated declaration ofaSiteAreaEmergency andplantconditions.

Asaresultofaccidentreleaserates,theprojected wholebodyandthyroiddoseswillnotexceedEPAProtective ActionGuidesbeyondtheSiteBoundary.

Theassumednoblegasandradioiodine releasequantities areshowninFigure9.1asafunctionoftime.ThescenarioinvolvestworeleasepointswhichisfromtheAirEjectorandthe"A"Atmospheric ReliefValve(ARV).Thisoccursasfollows:Pre-Steam Generator TubeRuptureTime0700-0915ReleasePointAirEjectorReleaseRateC'ec1.77E-3(NobleGas)2.24E-8(Radioiodine)

Thenoblegas-to-radioiodine ratioassumedis7.89E4:1duringthisperiodofrelease.Time0755-0810ReleasePointReleaseRateCisec8.32E-3(NobleGas)1.76E-9(Radioiodine)

Thenoblegas-to-radioiodine ratioassumedis7.89E4:1duringthisperiodofrelease.SteamGenerator TubeRuptureTime8ReleaseRateCisec0915-0935AirEjector5.24E-1(NobleGas)2.55E-4(Radioiodine)

Thenoblegas-to-radioiodine ratioassumedis2000:1duringthisperiodofrelease.Isotopicbreakdowns ofassumednoblegas,radioiodine andparticulate releasequantities areprovidedinTable9.1.

Time0935-0955ReleasePointAirEjectorReleaseRateCisec6.23E-2(NobleGas)3.12E-5(Radioiodine)

Thenoblegas-to-radioiodine ratioassumedis2000:1duringthisperiodofrelease.Isotopicbreakdowns ofassumednoblegas,radioiodine andparticulate releasequantities areprovidedinTable9.1.B.InteratedOffsiteDosesDuetoPlumeEosureThedownwindintegrated dosesfromthescenarioreleaseareasfollows:TimeReleasePointInteratedDoseRem0700-09150755-0810F0915-09350936-0955AirEjectorAirEjectorAirEjector1.25E-4(WholeBody)8.75E-7(ChildThyroid)6.S2E-5(WholeBody)7.63E-9(ChildThyroid)5.34E-3(WholeBody)1.48E-3(ChildThyroid)6.S1E-4(WholeBody)1.81E-4(ChildThyroid)TotalWholeBodyDose(at8iteBoundary)

=6.13E-3RemTotalChildThyroidDose(at8iteBoundary)

=1.66E-3RemC.PrincialPlantRadioloicalIndications Figures9.1through9.3providetrendplotsforkeyplantradiological indications, including plantventconcentration, letdownmonitorlevel,containment radiation levelandreactorcoolantconcentration.

TABLE9Theassumedreleasequantities fortheGinnaExerciseScenarioaresummarized asfollovs:Time:0915-0935 hrNuclideCurieSecTotalCuriesReleasedKr-85Kr-85mKr-87Kr-88Xe-131mXe-133Xe-133mXe-135Xe-135mXe-138TotalNobleGas4.0E-041.3E-021'E-022'E-024.9E-033'E-014.9E-024.9E-021.6E-026'E-025~2E-014.8E-011.7E+012.3E+012.5E+015.9E+004.0E+025.9E+015.9E+011.9E+017.6E+016'E+02I-131I-132I-133I-134I-1357.5E-054.9E-054.6E-054'E-054'E-059'E-025'E-025.5E-025.0E-025'E-02TotalRadioiodine 2~6E-043~1E-01Long-Lived Particulate 1+2E-091~5E-06

TABLE9.1(continued)

Theassumedreleasequantities fortheGinnaExerciseScenarioaresummarized asfollows:NuclideTime:09360955hrCurieSecTotalCuriesReleasedKr-85Kr-85mKr-87Kr-88Xe-131mXe-133Xe-133mXe-135Xe-135mXe-138TotalNobleGas4.8E-051.5E-032.1E-032.5E-035.8E-043.9E-025.8E-035.8E-031.9E-037.5E-036'E025'E-021.8E+002.5E+003.0E+007.0E-014.7E+017.0E+007.0E+002.3E+009.0E+007~5E+01I-131I-132I-133l-134I-1358.9E-065.8E-065.5E-065.0E-065.1E-06F1E-027.0E-036'E-036'E-036'E-03TotalRadioiodine 3~1E-053'E-02Long-Lived Particulate 1~4E-10i+7E07 FIGURE9.1ASSUMEDSOURCETERMSI/SECC1.0E+00--;.1.0E-011.0E-021.0E-031.0E-041.0E-051.0E-061.0E-071.0E-081.0E-091.0E-101.0E-1111111111111177788888999999000011112222 34501134013345013401340134 05500505050656050505050505CLOCKTIME~NOBLEGASCI/SEC~RADIOIODINE CI/SEC FIGURE9.2AIREJECTORVENTCONCENTRATIONS U1.0E+011.0E+001.0E-011.0E-021.0E-031.0E-041.0E-051.0E-061.0E-071.0E-081.0E-091.0E-101.0E-11CI/CC111111111111778888999999000011112222340134013345013401340134050505050555050505050505OLOCKTIMENOBLEGAS~RADIOIODINE FIGURE9.3RCSCONCENTRATIONS VSTIME+02UCI/GM1.0E1.0E+011.0E+001.0E-01111111111111778888999900001111222234013401340134013401340505050505050505050505CLOCKTIMETOTALGAS~TOTALIODINE

METEOROLOGICAL ASSUMPTIONS

Meteorolo icaConditions BasisThemeteorological conditions forthisscenariowerebaseduponhistorical meteorological datarecordedbytheGinnaprimaryweathertowerandtheNationalWeatherServiceonAuust221988.Minoredittingwasperformed onthedatatoprovidethewinddirection andatmospheric stability conditions requiredbythescenarioduringtheperiodofrelease.NationalWeatherServiceandotherExercisecontrollers willprovideExerciseparticipants weatherforecastsummaries basedonthemeteorological dataandothersupporting information available fromthehistorical record.Thegoalofthisapproachistoprovideparticipants withmorerealistic forecastinformation.

ScenarioAssumtionsThescenariobeginswithlight,southerly windswhichshiftandbecomenortheasterly bymid-morning.

DuringtheperiodofreleaseduetotheSteamGenerator TubeRupture(0915-0955 hr),theaveragemeteorological conditions areasfollows:WindSpeedWindDirection 5mph(at33ft)50degrees(at33ft;windfrom)PasquillStability

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