WBL-22-019, Annual Radioactive Effluent Release Report
| ML22119A005 | |
| Person / Time | |
|---|---|
| Site: | Watts Bar  |
| Issue date: | 04/29/2022 |
| From: | Anthony Williams Tennessee Valley Authority |
| To: | Document Control Desk, Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation |
| References | |
| WBL-22-019 | |
| Download: ML22119A005 (79) | |
Text
Post Office Box 2000, Spring City, Tennessee 37381 WBL-22-019 April 29, 2022 10 CFR 50.36a(a)(2) 10 CFR 72.104(a)
ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Watts Bar Nuclear Plant, Unit 1 and Unit 2 Facility Operating License Nos. NPF-90 and NPF-96 NRC Docket Nos. 50-390, 50-391, and 72-1048
Subject:
Watts Bar Nuclear Plant 2021 Annual Radioactive Effluent Release Report The purpose of this letter is to provide the Tennessee Valley Authority (TVA) Watts Bar Nuclear Plant (WBN) Annual Radioactive Effluent Release Report (ARERR) for the period of January 1, 2021 to December 31, 2021. The enclosed annual report is being submitted to the Nuclear Regulatory Commission (NRC) in accordance with Title 10 of the Code of Federal Regulations (10 CFR) 50.36a and the WBN, Unit 1 and Unit 2, Technical Specification (TS) 5.9.3, that requires the ARERR be submitted prior to May 1st of each year.
The enclosure provides the required effluent release data. The enclosure includes information related to the Independent Spent Fuel Storage Installation (ISFSI), documents any deviations which have occurred from Offsite Dose Calculation Manual (ODCM) requirements, addresses any radioactive effluent monitoring instrumentation which was inoperable for greater than 30 days, and provides corrections to previous annual reports. Revision 6 of the Two-Unit ODCM, dated November 16, 2020, remains in the current revision.
WBL-22-019 E1 of 77 Enclosure TENNESSEE VALLEY AUTHORITY WATTS BAR NUCLEAR PLANT 2021 Annual Radioactive Effluent Release Report
WattsBarNuclearPowerPlant TennesseeValleyAuthority
AnnualRadioactive EffluentReleaseReport
2021
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[1]
I.
Introduction..........................................................................................................................................5 II.
SupplementalInformation....................................................................................................................5 A.
RegulatoryLimits..............................................................................................................................5 B.
EffluentConcentrationLimits...........................................................................................................6 C.
AverageEnergy.................................................................................................................................6 D.
Measurements&ApproximationsofTotalRadioactivity.................................................................6 E.
BatchReleases..................................................................................................................................9 F.
AbnormalReleases............................................................................................................................9 G.
Nonroutine,PlannedDischarges...................................................................................................12 H.
RadioactiveWasteSystemTreatmentChanges.............................................................................12 I.
LandUseCensusChanges...............................................................................................................13 J.
EffluentMonitoringInstrumentInoperability>30Days................................................................14 K.
EffluentMonitoringEquipmentSampleDeviation.........................................................................16 L.
OffsiteDoseCalculationManualChanges......................................................................................16 M.GroundwaterMonitoringProgram(NEI0707)..............................................................................17 N.
Errata/CorrectionstoPreviousARERRs..........................................................................................19 III.
GaseousEffluents...........................................................................................................................20 Table1AGaseousEffluentsSummationofallReleasesforUnit1.....................................................20 Table1BGaseousEffluentsSummationofallReleasesforUnit2......................................................21 Table1CGaseousEffluents-GroundLevelReleasefromUnit1(Batch).............................................22 Table1CGaseousEffluents-GroundLevelReleasesfromUnit1(Continuous)..................................23 Table1DGaseousEffluents-GroundLevelReleasefromUnit2(Batch)............................................24 Table1DGaseousEffluents-GroundLevelReleasesfromUnit2(Continuous)..................................25 IV.
LiquidEffluents...............................................................................................................................26 Table2ALiquidEffluentsSummationofallReleasesforUnit1.........................................................26 Table2BLiquidEffluentsSummationofallReleasesforUnit2..........................................................27 Table2CLiquidEffluents-Unit1BatchMode.....................................................................................28 Table2CLiquidEffluents-Unit1ContinuousMode............................................................................29 Table2DLiquidEffluents-Unit2BatchMode.....................................................................................30 Table2DLiquidEffluents-Unit2ContinuousMode............................................................................31 V.
SolidWasteStorageandShipment.....................................................................................................32 A.
TypesofSolidWaste-Summary....................................................................................................32 WBL-22-019 E3 of 77
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B.
DestinationbyCarrier.....................................................................................................................32 C.
MajorNuclidesbyWasteClassandStream...................................................................................33 D.
IrradiatedFuelShipments...............................................................................................................34 E.
SolidificationofWaste....................................................................................................................34 VI.
RadiologicalImpacttoMan............................................................................................................35 A.
Introduction....................................................................................................................................35 B.
DoseLimits......................................................................................................................................35 C.
DoseCalculations............................................................................................................................35 D.
DosesfromAirborneEffluents........................................................................................................35 E.
DosesfromLiquidEffluents............................................................................................................37 F.
PopulationDoses............................................................................................................................37 G.
OffsiteDirectRadiationDose..........................................................................................................38 H.
DosetoaMemberofthePublicInsidetheSiteBoundary.............................................................38 I.
TotalDose.......................................................................................................................................38 J.
Tables..............................................................................................................................................40 Table3ADosesfromUnit1AirborneEffluents-1stQuarter...............................................................40 Table3BDosesfromUnit1AirborneEffluents-2ndQuarter...............................................................41 Table3CDosesfromUnit1AirborneEffluents-3rdQuarter...............................................................42 Table3DDosesfromUnit1AirborneEffluents-4thQuarter...............................................................43 Table3EDosesfromUnit2AirborneEffluents-1stQuarter................................................................44 Table3FDosesfromUnit2AirborneEffluents-2ndQuarter...............................................................45 Table3GDosesfromUnit2AirborneEffluents-3rdQuarter...............................................................46 Table3HDosesfromUnit2AirborneEffluents-4thQuarter...............................................................47 Table4ADosesfromUnit1LiquidEffluents-1stQuarter....................................................................48 Table4BDosesfromUnit1LiquidEffluents-2ndQuarter...................................................................48 Table4CDosesfromUnit1LiquidEffluents-3rdQuarter....................................................................49 Table4DDosesfromUnit1LiquidEffluents-4thQuarter...................................................................49 Table4EDosesfromUnit2LiquidEffluents-1stQuarter....................................................................50 Table4FDosesfromUnit2LiquidEffluents-2ndQuarter...................................................................50 Table4GDosesfromUnit2LiquidEffluents-3rdQuarter...................................................................51 Table4HDosesfromUnit2LiquidEffluents-4thQuarter...................................................................51 Table5TotalDosefromFuelCycle.........................................................................................................52 VII.
IndependentSpentFuelStorageInstallation.................................................................................53 WBL-22-019 E4 of 77
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VIII.
MeteorologicalData.......................................................................................................................54
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TABLE1AGASEOUSEFFLUENTSSUMMATIONOFALLRELEASESFORUNIT1.............................................................................20 TABLE2BGASEOUSEFFLUENTSSUMMATIONOFALLRELEASESFORUNIT2.............................................................................21 TABLE1CGASEOUSEFFLUENTS-GROUNDLEVELRELEASEFROMUNIT1(BATCH).....................................................................22 TABLE1CGASEOUSEFFLUENTS-GROUNDLEVELRELEASESFROMUNIT1(CONTINUOUS)...........................................................23 TABLE1DGASEOUSEFFLUENTS-GROUNDLEVELRELEASEFROMUNIT2(BATCH).....................................................................24 TABLE1DGASEOUSEFFLUENTS-GROUNDLEVELRELEASESFROMUNIT2(CONTINUOUS)..........................................................25 TABLE2ALIQUIDEFFLUENTSSUMMATIONOFALLRELEASESFORUNIT1.................................................................................26 TABLE2BLIQUIDEFFLUENTSSUMMATIONOFALLRELEASESFORUNIT2.................................................................................27 TABLE2CLIQUIDEFFLUENTS-UNIT1BATCHMODE............................................................................................................28 TABLE2CLIQUIDEFFLUENTS-UNIT1CONTINUOUSMODE...................................................................................................29 TABLE2DLIQUIDEFFLUENTS-UNIT2BATCHMODE............................................................................................................30 TABLE2DLIQUIDEFFLUENTS-UNIT2CONTINUOUSMODE...................................................................................................31 TABLE3ADOSESFROMUNIT1AIRBORNEEFFLUENTS-1STQUARTER......................................................................................40 TABLE3BDOSESFROMUNIT1AIRBORNEEFFLUENTS-2NDQUARTER......................................................................................41 TABLE3CDOSESFROMUNIT1AIRBORNEEFFLUENTS-3RDQUARTER......................................................................................42 TABLE3DDOSESFROMUNIT1AIRBORNEEFFLUENTS-4THQUARTER......................................................................................43 TABLE3EDOSESFROMUNIT2AIRBORNEEFFLUENTS-1STQUARTER......................................................................................44 TABLE3FDOSESFROMUNIT2AIRBORNEEFFLUENTS-2NDQUARTER......................................................................................45 TABLE3GDOSESFROMUNIT2AIRBORNEEFFLUENTS-3RDQUARTER......................................................................................46 TABLE3HDOSESFROMUNIT2AIRBORNEEFFLUENTS-4THQUARTER......................................................................................47 TABLE4ADOSESFROMUNIT1LIQUIDEFFLUENTS-1STQUARTER...........................................................................................48 TABLE4BDOSESFROMUNIT1LIQUIDEFFLUENTS-2NDQUARTER..........................................................................................48 TABLE4CDOSESFROMUNIT1LIQUIDEFFLUENTS-3RDQUARTER..........................................................................................49 TABLE4DDOSESFROMUNIT1LIQUIDEFFLUENTS-4THQUARTER..........................................................................................49 TABLE4EDOSESFROMUNIT2LIQUIDEFFLUENTS-1STQUARTER...........................................................................................50 TABLE4FDOSESFROMUNIT2LIQUIDEFFLUENTS-2NDQUARTER...........................................................................................50 TABLE4GDOSESFROMUNIT2LIQUIDEFFLUENTS-3RDQUARTER..........................................................................................51 TABLE4HDOSESFROMUNIT2LIQUIDEFFLUENTS-4THQUARTER..........................................................................................51 TABLE5TOTALDOSEFROMFUELCYCLE...............................................................................................................................52
TABLES WBL-22-019 E6 of 77
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I.
Introduction TheAnnualRadioactiveEffluentReleaseReportcoveringtheoperationofbothunitsissubmitted pursuanttoWattsBarNuclearPlantTechnicalSpecification5.9.3andOffsiteDoseCalculationManual 5.2.
II.
SupplementalInformation A. RegulatoryLimits
- 1.
GaseousEffluents Doseratesduetoradioactivityreleasedingaseouseffluentsfromthesitetoareasat andbeyondtheunrestrictedareaboundaryshallbelimitedtothefollowing:
Noblegases Lessthanorequalto500mrem/yeartothetotalbody.
Lessthanorequalto3000mrem/yeartotheskin.
Iodines,tritiumandparticulateswithhalflivesgreaterthaneightdays Lessthanorequalto1500mrem/yeartoanyorgan.
Dosetoamemberofthepublicshallbelimitedtothefollowing:
Iodines,tritiumandparticulateswithhalflivesgreaterthaneightdays Lessthanorequalto7.5mremtoanyorganduringanycalendarquarter.
Lessthanorequalto15mremtoanyorganduringanycalendaryear.
Airdoseduetonoblegases Lessthanorequalto5mradforgammaradiationandlessthanorequalto10 mradforbetaradiationduringanycalendarquarter.
Lessthanorequalto10mradforgammaradiationandlessthanorequalto 20mradforbetaradiationduringanycalendaryear.
- 2.
LiquidEffluents Theconcentrationofradioactivityreleasedinliquideffluentstounrestrictedareas shallbelimitedto10timestheconcentrationspecifiedinTitle10oftheCodeofFederal Regulations(CFR),Part20(StandardsforProtectionagainstRadiation),AppendixB,Table 2,Column2,forradionuclidesotherthandissolvedorentrainednoblegases.For dissolvedorentrainednoblegases,theconcentrationshallbelimitedto2.0E04Ci/ml totalactivity.
Thedoseordosecommitmenttoamemberofthepublicfromradioactivityinliquid effluentsreleasedtounrestrictedareasshallbelimitedtolessthanorequalto1.5mrem tothetotalbodyduringanycalendarquarter,lessthanorequalto5mremtoanyorgan duringanycalendarquarter,lessthanorequalto3mremtothetotalbodyduringany calendaryearandlessthanorequalto10mremtoanyorganduringanycalendaryear.
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B. EffluentConcentrationLimits
- 1.
GaseousEffluents Concentrationlimitsforgaseousreleasesaremetthroughcompliancewiththe maximumpermissibledoseratesforgaseousreleasesasdefinedinplantOffsiteDose CalculationManual(ODCM)andpresentedinSectionIIsubsectionA.1ofthisreport.
- 2.
LiquidEffluents Theeffluentconcentrationlimits(ECL)forliquidsarethoselistedin10CFR20, AppendixB,Table2,Column2.Fordissolvedandentrainedgases,theECLof2.0E04 Ci/mlisapplied.ThisECLisbasedontheXe135concentrationinair(submersiondose) convertedtoanequivalentconcentrationinwaterasdiscussedintheInternational CommissiononRadiologicalProtection(ICRP),Publication2.
C. AverageEnergy WattsBarNuclearPlant's(WBN)ODCMlimitsthedoseequivalentratesduetothe releaseofnoblegasestolessthanorequalto500mrem/yeartothetotalbodyandless thanorequalto3000mrem/yeartotheskin.Therefore,theaveragebetaandgamma energies(E)forgaseouseffluentsasdescribedinRegulatoryGuide1.21Revision1, "Measuring,Evaluation,andReportingRadioactivityinSolidWastesandReleasesof RadioactiveMaterialsinLiquidandGaseousEffluentsfromLightWaterCooledNuclear PowerPlants,"arenotapplicable.
D. Measurements&ApproximationsofTotalRadioactivity RadioactivitymeasurementsperformedinsupportoftheWattBarNuclearPowerPlant ODCMmeettheLowerLimitofDetectionrequirementsgiveninODCMTable2.21and Table2.22.
- 1.
GaseousEffluents FissionandActivationGases Airborneeffluentgaseousactivityiscontinuouslymonitoredandrecorded.Weekly grabsamplesfromtheauxiliarybuildingandmonthlygrabsamplesfromtheservice buildingaretakenandanalyzedtodeterminethequantityofnoblegasactivityreleased basedonthetotalflowsforthesampleperiod.Also,noblegassamplesarecollectedand evaluatedfollowingstartup,shutdownorratedthermalpowerchangeexceeding15 percentwithinonehour.SamplingisonlyrequiredifdoseequivalentI131concentration intheprimarycoolanthasincreasedmorethanafactorofthreeorifthenoblegas activitymonitorindicatesthatthecontainmentactivityhasincreasedmorethanafactor ofthree.
Theconcentrationofnoblegasesreleasedthroughtheshieldbuildingexhaustsdueto purgingcontainmentisdeterminedbyusingthepurgemonitorresponseincombination withcontainmentairsamplesobtainedpriortoeachpurge.Thequantityofactivity releasedduringthepurgeisdeterminedusingtheduration,flowrate,andconcentration ofnoblegasesforeachpurge.Also,noblegassamplesarecollectedandevaluatedfor ongoingcontainmentpurgesfollowingstartup,shutdown,orratedthermalpower changeexceeding15percentwithinonehour.SamplingisonlyrequiredifDEI concentrationintheprimarycoolanthasincreasedmorethanafactorofthreeorifthe noblegasactivitymonitorshowsthatthecontainmentactivityhasincreasedmorethana factorofthree.
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Thequantityofnoblegasesreleasedthroughtheshieldbuildingexhaustsduetothe batchreleaseofwastegasdecaytanksaredeterminedbysamplingeachtankpriorto release.Totalactivityreleasedisdeterminedfromtotaltankpressurechangerecorded duringtherelease.
IodinesandParticulatesinGaseousReleases lodineandparticulateactivityarecontinuouslysampled.Weeklycharcoaland particulatesamplesaretakenfromtheshieldbuildingexhaustsandauxiliarybuilding exhaustandfromthecondenservacuumexhaustsduringperiodsofprimaryto secondaryleakage.Thesesamplesareanalyzedatleastweeklytodeterminethetotal activityreleasedfromtheplantbasedonthetotalventflowsrecordedforthesampling period.Also,particulateandcharcoalsamplesaretakenfromtheshieldbuilding exhausts,auxiliarybuildingexhaust,and(whenaprimarytosecondaryleakexists) condenservacuumexhaustsonceper24hoursfor7daysfollowingstartup,shutdown,or aratedthermalpowerchangeexceeding15percentwithinonehourifdoseequivalentl 131concentrationintheprimarycoolantorthenoblegasactivitymonitorshowsthat thecontainmentactivityhasincreasedmorethanafactorofthree.
Carbon14inGaseousReleases TheCarbon14productionandeffluentsourcetermestimateswerebasedonEPRI methodologyprovidedinEPRIReport1021106,"EstimationofCarbon14inNuclear PowerPlantGaseousEffluents,"datedDecember2010.Itwasdeterminedin2021that 9.43curiesofCarbon14wasgeneratedfromUnit1and9.63curiesofCarbon14was generatedfromUnit2.However,only98%isconsideredreleasedasgasandonlythe carbondioxideform(20%)ofthatisusedinthegaseousdosecalculations.
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- 2.
LiquidEffluents Batch(RadwasteandCondensateDemineralizerDrains)
Totalgammaisotopicandtritiumconcentrationsaredeterminedoneachradwaste batchtankpriortorelease.Thetotalactivityofabatchreleaseisobtainedby determiningtheconcentrationofeachnuclideandthenmultiplyingbythevolume dischargedtoarriveatthecurieactivityforeachnuclide.Thecuriesofeachnuclideare thensummed.Compositesamplesaremaintainedandanalyzedmonthlyforgrossalpha andquarterlyforiron55,strontium89,andstrontium90.Duringperiodsofno significantidentifiedprimarytosecondaryleakage,compositesamplesarenot maintainedforbatchreleasesfromthecondensatedemineralizertankreleases.During periodsofnosignificantidentifiedprimarytosecondaryleakageorwhenthecondensate demineralizertanksaredischargedtotheturbinebuildingstationsump,thefeedwater tritiumconcentrationsareusedtodeterminethecuriesoftritiumreleasedfrom condensatedemineralizertank.
ContinuousReleases(TurbineBuildingStationSump(TBSS),SteamGenerator Blowdowns(SGB),andGroundwaterSump(GWS))
Duringperiodsofnosignificantidentifiedprimarytosecondaryleakage,thevolume releasedfromtheTBSSandSGB'sareobtained.TheTBSStritiumconcentrationis determinedviaweeklygrabsamples.Thefeedwatertritiumconcentrationsareusedto determinethecuriesoftritiumreleasedfromSGB's.TheGWSissampledmonthlyand analyzedforgrossgammaandtritiumonamonthlybasis,andforSr89,Sr90,andNi63 onaquarterlybasis.Thetotalactivityreleasedisobtainedbydeterminingthe concentrationofeachnuclideandthenmultiplyingbythevolumedischargedtoarriveat thecurieactivityforeachnuclide.
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E. BatchReleases
- 1.
Gaseous
- 2.
Liquid
F. AbnormalReleases
- 1.
Gaseous
Units 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Total 1.Gaseous
1.NumberofBatch Releases
22 24 26 27 99 2.Totaldurationof batchreleases minutes 3.81E+04 2.71E+04 1.31E+05 7.84E+04 2.75E+05 3.Maximumbatch releaseduration minutes 4.87E+03 4.75E+03 5.67E+04 3.29E+04 5.67E+04 4.Averagebatch releaseduration minutes 1.73E+03 1.13E+03 5.04E+03 2.90E+03 2.77E+03 5.Minimumbatch releaseduration minutes 4.00E+00 5.00E+00 1.40E+01 2.10E+01 4.00E+00
Units 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Total 1.Liquids
1.NumberofBatch Releases
15 25 31 35 106 2.Totaldurationof batchreleases minutes 3.79E+03 7.10E+03 7.95E+03 1.23E+04 3.11E+04 3.Maximumbatch releaseduration minutes 5.02E+02 9.55E+02 4.35E+02 3.31E+03 3.31E+03 4.Averagebatch releaseduration minutes 2.53E+02 2.84E+02 2.56E+02 3.51E+02 2.94E+02 5.Minimumbatch releaseduration minutes 1.50E+02 2.50E+01 1.35E+02 9.00E+01 2.50E+01
Units 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Total 1.Gaseous
1.Numberof AbnormalReleases
0 1
0 1
2 2.Totalactivityof abnormalreleases Ci 0.00E+00 1.11E03 0.00E+00 5.96E04 3.92E03 WBL-22-019 E11 of 77
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Unit1SteamGeneratorPORVs(10/29/21through12/01/21)
ThisevaluationisforthereleasetotheenvironmentthatoccurredfromtheUnit1 SteamGeneratorPORVsduringUnit1RefuelingOutage17.ThePORVvalveswere openedandclosedduringthisperiodoftime.
Thefollowingisdatausedtoshownodoseimpactoftherelease:
WhileallthePORVswerenotopencontinuouslyduringthisperiod,the evaluationassumedthereleasewascontinuousfromallfourPORVs.
Therehavebeennogammaemittingradionuclidesidentifiedinany SecondaryCoolantsamples.
Thefeedwatertritiumresultsobtainedon10/25/2021indicatedatritium concentrationof1.108E06µCi/mL.Thistritiumconcentrationisassumedto havebeentheinitialconcentrationwithnoadditionaltritiumintroducedinto thesteamgeneratorsduringthereleaseperiod.Allofthetritiuminitially presentinthesteamgeneratorswasassumedtohavebeenreleasedthrough thePORVsfrom10/29/2021through12/01/2021.
ThevolumeofeachsteamgeneratorwastakenfromWestinghouseGuidelinesfor SecondaryWaterChemistry.Thelistednormalwaterlevelvalueof4750ft3wasusedas aconservativevalue.Thiscalculationconservativelyassumesthatthetotalvolumeofall fourgeneratorswasreleasedandthatallthetritiumpresentinthatinitialvolumewas released.Thecalculationforthetotaltritiumactivityreleasedisasfollows:
4750ft3/generator*2.832E+04mL/ft3*4generators=5.38E+08mL 1.108E06µCi/mL*5.38E+08mL=5.96E+02µCi(5.96E04Ci)ofH3for4thquarter
Theactivityof5.96E04curiesofH3wasaddedtothe4thquarterTable1Cand Table3D.Theadditionof5.96E04curiesoftritiumdidnothaveanyimpacton changingthedosevaluesforthe4thquarterof2021.
IndividualDoses4thQuarterU1SteamGeneratorPORVRelease Pathway Dose QuarterlyLimit PercentofLimit Location BetaAir 0.00E+00mrad 1.00E+01mrad 0.00E+00 N/A GammaAir 0.00E+00mrad 5.00E+00mrad 0.00E+00 N/A NGSkin 0.00E+00mrad N/A N/A N/A NGTotalBody 0.00E+00mrad N/A N/A N/A OrganDoses (Iodine,Tritium,Particulateswith>8Dayhalflife)
Child/Thyroid 8.93E07mrem 7.5mrem 1.19E05 SE1409meters Child/Total Body 8.93E07mrem 7.5mrem 1.19E05 SE1409meters
PopulationDoses4thQuarterU1SteamGeneratorPORVRelease TotalBodyDose
4.24E06manrem MaximumOrganDose(Organ) 4.24E06manrem(Bone,GILLI,Kidney,Liver,Lung,Thyroid)
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Unit2SteamGeneratorPORVs(09/12/21through09/28/21)
ThisevaluationisforthereleasetotheenvironmentthatoccurredfromtheUnit2 SteamGeneratorPORVsin2021duetoUnit2midcycleoutage.ThePORVvalveswere openedandclosedduringtheseperiodsoftime.
Thefollowingisdatausedtoshownodoseimpactoftherelease:
WhileallthePORVswerenotopencontinuouslyduringthisperiod,the evaluationassumedthereleasewascontinuousfromallfourPORVs.
Therehavebeennogammaemittingradionuclidesidentifiedinany SecondaryCoolantsamples.
Thefeedwatertritiumresultsobtainedon09/06/2021indicatedatritium concentrationof6.892E06µCi/mL.Thistritiumconcentrationisassumedto havebeentheinitialconcentrationwithnoadditionaltritiumintroducedinto thesteamgeneratorsduringthereleaseperiod.Allofthetritiuminitially presentinthesteamgeneratorswasassumedtohavebeenreleasedthrough thePORVsfrom09/12/2021through09/28/2021.
ThevolumeofeachsteamgeneratorwastakenfromWestinghouseGuidelinesfor SecondaryWaterChemistry.Thelistednormalwaterlevelvalueof4250ft3wasusedas aconservativevalue.Thiscalculationconservativelyassumesthatthetotalvolumeofall fourgeneratorswasreleasedandthatallthetritiumpresentinthatinitialvolumewas released.Thecalculationforthetotaltritiumactivityreleasedisasfollows:
4250ft3/generator*2.832E+04mL/ft3*4generators=4.81E+08mL 6.892E06µCi/mL*4.81E+08mL=3.32E+03µCi(3.32E03Ci)ofH3for3rdquarter
Theactivityof3.32E03curiesofH3wasaddedtothe3rdquarterTable1Dand Table3G.Theadditionof3.32E03curiesoftritiumdidnothaveanyimpactonchanging thedosevaluesforthe3rdquarterof2021.
IndividualDoses3rdQuarterU2SteamGeneratorPORVRelease Pathway Dose QuarterlyLimit PercentofLimit Location BetaAir 0.00E+00mrad 1.00E+01mrad 0.00E+00 N/A GammaAir 0.00E+00mrad 5.00E+00mrad 0.00E+00 N/A NGSkin 0.00E+00mrad N/A N/A N/A NGTotalBody 0.00E+00mrad N/A N/A N/A OrganDoses (Iodine,Tritium,Particulateswith>8Dayhalflife)
Child/Thyroid 3.53E06mrem 7.5mrem 4.71E05 NE3661meters Child/Total Body 3.53E06mrem 7.5mrem 4.71E05 NE3661meters
PopulationDoses3rdQuarterU2SteamGeneratorPORVRelease TotalBodyDose
2.16E05manrem MaximumOrganDose(Organ) 2.16E05manrem(Bone,GILLI,Kidney,Liver,Lung,Thyroid)
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- 2.
Liquid
Incalendaryear2021therewerenoabnormalliquidreleases.
G. Nonroutine,PlannedDischarges
Incalendaryear2021therewerenononroutineplanneddischarges.
H. RadioactiveWasteSystemTreatmentChanges
Incalendaryear2021therewerenochangestotheradwastesystem.Theprocesscontrol programwasrevisedtoincludecorrectreferencesfortheConcentrationAveragingand EncapsulationBranchTechnicalPositionrevision1Volume1U.S.NuclearRegulatory CommissionOfficeofNuclearMaterialSafetyandSafeguardFebruary2015.
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I. LandUseCensusChanges
Receptor Receptor Distance Terrain Adj.
Number Type*
Sector (m)
Factor 1
NR N
4474 1.5 2
NR NNE 3556 1.8 3
NR NE 3399 2.3 4
NR ENE 3072 1.9 5
NR E
4388 1.6 6
NR ESE 4654 1.8 7
NR SE 1409 1.5 8
NR SSE 1646 1.5 9
NR S
1550 1.8 10 NR SSW 1832 1.9 11 NR SW 4223 2.0 12 NR WSW 2422 1.7 13 NR W
2901 1.1 14 NR WNW 1448 2.5 15 NR NW 1903 1.6 16 NR NNW 4376 1.0 17 NG N
6295 1.1 18 NG NNE 5030 1.6 19 NG NE 3661 2.2 20 NG ENE 4623 1.7 21 NG E
4712 1.6 22 NG ESE 6916 1.7 23 NG SE 1409 1.5 24 NG SSE 8100 1.0 25 NG S
3568 2.0 26 NG SSW 2286 2.0 27 NG SW 8100 1.7 28 NG WSW 2422 1.7 29 NG W
3701 1.0 30 NG WNW 2110 2.9 31 NG NW 2065 1.5 32 NG NNW 4406 1.0 33 MC ESE 6706 1.7
NoteChangesfrompreviousyearslandusefilearemarkedinbold WBL-22-019 E15 of 77
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J. EffluentMonitoringInstrumentInoperability>30Days
Date Instrument Explanation 12/16/20 ODCM1/2.1.2 Control1.1.2 Table1.12 Item4.a,b 1RM90400(Unit1ShieldBuildingExhaustRadiation Monitor)wasdeclaredinoperableon12/16/20at02:02due tothesamplepumpintermittentlytripping(CR#1659169).
1RM90400wasdeclaredoperableon1/20/21at09:13 afterpowerwasrestoredandthedatabasewasreloaded.
CR#1664633waswrittentodocumentinoperability exceeding30days.
1/24/21 ODCM1/2.1.1 Control1.1.1 Table1.11 Item2.a 0RM90134(ERCWeffluentheaderradiationmonitor)was declaredinoperableon1/24/21at12:30for1RM90119 replacement(DCP18160),with0RM90141already inoperable.0RM90134wasdeclaredoperableon3/2/21 at17:25afterthepowersupplytothenewradiation monitorhadbeenrestored.CR#1673920waswrittento documentinoperabilityexceeding30days.
1/24/21 ODCM1/2.1.2 Control1.1.2 Table1.12 Item2.a 1RM90119(U1CondenserVacuumExhaustradiation monitor)wasdeclaredinoperableon1/24/21at12:30for radiationmonitorreplacement(DCP18160).1RM90119 wasdeclaredoperableafterthepowersupplytothenew radiationmonitorhadbeenrestored.CR#1673918was writtentodocumentinoperabilityexceeding30days.
3/17/21 ODCM1/2.1.1 Control1.1.1 Table1.11 Item1.a 0RM90212(TurbineBuildingSumpeffluentradiation monitor)wasdeclaredinoperableon3/17/21at12:20due toinstrumentmalfunctionalarmcausedbythejunctionbox gettingfloodedanddetectordamageduringtheUnit2plant trip(seeCR#1679452).Repairofthemonitorhasbeen delayedduetounavailabilityofparts.CR#1687006was writtentodocumentinoperabilityexceeding30days.
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J.EffluentMonitoringInstrumentInoperability>30Days(Continued)
Date Instrument Explanation 3/26/21 ODCM1/2.1.2 Control1.1.2 Table1.12 Item4.c 0FI90300/1B(AuxiliaryBuildingVentilationSystem effluentflowratemeasuringdevice)wasdeclared inoperableon3/26/21at05:27duetofailedflow transmitter(seeCR#1681672).ActionB(flowestimates onceperfourhours)wasenteredandremainedinplace until4/14/21.Aftertheflowtransmitterwasrepaired(WO #122033719),0FI90300/1Bremainedinoperabledueto exhaustfanmalfunctionresultingineffluentflowrateless than100,000scfm.On4/14/21at14:55,sampleloop0LPF 90300flowratewasmanuallyadjustedto20scfm,atwhich pointODCMActionLwasentered,andActionBwasexited.
WO#121823233isinplacetorepairtheexhaustfan,which willallowrestorationof0FI90300/1Btooperableand exitingODCMactions.0FI90300/1Bwasdeclared operableon5/13/21at20:45followingMIGrestorationof sampleflowtoautoandtwotrainsofAuxBuildingExhaust inservice.CR#1693376waswrittentodocument inoperabilityexceeding30days.
10/5/21 ODCM1/2.1.2 Control1.1.2 Table1.12 Item2.c 2FE2256(Unit2CondenserVacuumExhaustFlowRate Monitor)wasdeclaredinoperableon10/5/21at21:43due toerraticflow(seeCR#1726176).CR#1734451waswritten todocumentinoperabilityexceeding30days.
11/6/21 ODCM1/2.1.2 Control1.1.2 Table1.12 Item4.a,b,c 1RM90400(Unit1ShieldBuildingExhaustRadiation Monitor)and1FI90400(Unit1ShieldBuildingExhaust EffluentFlowRateMeasuringDevice)weredeclared inoperableon11/6/21at16:45forDCNWBN18160.1RM 90400and1FI90400declaredoperablefollowing replacementofradiationmonitorandcalibrationon2/8/22 at14:30.CR#1741909waswrittentodocument inoperabilityexceeding30days.
11/14/21 ODCM1/2.1.2 Control1.1.2 Table1.12 Item4.b 0RE90101(AuxiliaryBuildingVentilationSystem iodine/particulatesampler)wasdeclaredinoperableon 11/14/21at00:48duetoinstrumentmalfunction annunciatorlitandlackofresponsefromsourcecheck(CR
- 1735781).0RE90101wasdeclaredoperableon12/31/21 at08:00aftertheparticulatechanneloperatelightwaslit andtheinstrumentmalfunctionwascleared.CR#1735781 waswrittentodocumentinoperabilityexceeding30days.
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K. EffluentMonitoringEquipmentSampleDeviation
Date Instrument Explanation 1/19/21 ODCM1/2.1.1 Control1.1.1 Table1.11 Item2.a On1/19/21at14:23,ODCMActionCwasenteredfor inoperabilityof0RM90133&0RM90140,requiringgrab samplestobesampledandanalyzedforgammaactivity onceper12hours.Per0ODI904,samplesarerequiredto beobtainedfromtheERCWsideofCCSHXBandCCSHXC.
AsamplewasobtainedfromCCSHXBasrequiredon 1/19/21at21:00,butnosamplewasobtainedfromCCSHX Cuntil1/20/21at10:00,19.6hoursafterentryintoODCM ActionC,exceedingtherequiredsampletimeofonceper12 hours.Themissedsamplewasdiscoveredduringeffluents chemistreviewof0ODI904.Thisisadeviationfromthe ODCMandwillrequirereportinginthe2021Annual RadioactiveEffluentReleaseReport.
L. OffsiteDoseCalculationManualChanges
Incalendaryear2021therewasnorevisionstotheOffsiteDoseCalculationManual.
Revision06isattached.
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M. GroundwaterMonitoringProgram(NEI0707)
MonitoringWells WattsBarhassix(6)radiologicalenvironmentalmonitoringprogram(REMP)onsite groundwatermonitoringwellsand22nonREMPmonitoringwells.Thesewellssupport monitoringtheonsitegroundwaterplumeforthepresenceorincreaseofradioactivity.
WBNcontractsARCADIStoperforminvestigationsoftheimpacttritiumhason groundwaterandtoperformsitecharacterizations,areaofimpact,andpreliminary humanhealthandecologicalriskscreening.
ThenonREMPmonitoringwellsaresampledatleastsemiannuallyforgammaand tritium.Nogammaactivitywasdetectedinanygroundwaterwellsin2021.In September2021,thequarterlyWellRandSsamplesindicatedtritiumactivityabovethe NuclearEnergyInstituteGroundwaterProtectionInitiativevoluntarycommunication thresholdof20,000pCi/L.VoluntarycommunicationwasinitiatedtotheStateof Tennesseeandlocalofficials.ThecausewasidentifiedastheLiquidRadiologicalWaste (LRW)line.OnOctober22,2021,TVAstoppedreleasingwaterthroughtheLRWline.A temporarylinewassetupuntilanewpermanentlinecanbeconstructed.
Allothergroundwatermonitoringwellscontinuetoexhibitastabletrendand historicalaveragetritiumdecreasingovertime.MW09andWellK,R,Swerealso analyzedforSr89,Sr90,Fe55,andNi63,withnodetectableactivity.
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MonitoringWellSampleResults(pCi/L)
WellID March 2021 June 2021 September 2021 December 2021 D
<297
<294
<239
E
<295
<301
<242
G
<289
<259
I
<295
<315 503 593 J
<268
<282
<297
K 1860 1490 1170 1200 L
705
<313 529 2350 M
<276
<308
<286
O
<305
<310 1240
P
<291
400 364 Q
<277
<309
<293
R 258 308 1.57E+05 1.82E+05 S
318
7.47E+05 3.36E+05 V
<271
<281
MW06 436 467
<256
<339 MW08
<294
<243
MW09 8240 4720 5550 6780 MW10
<290
<324 642
<248*
<337 MW11i
<296
<246
MW11s
<305
<238
MW12
<299
<307
<258
<336 MW13
<298
<246
- MW10wasresampledon10/28/21.
Dosesfroml131WaterlngestionPathway TheREMPspecifiedinTable3.121fromNUREG1301,"OffsiteDoesCalculation ManualGuidance:StandardRadiologicalEffluentControlsforPressurizedWater Reactors,"April1991,requiresanI131specificanalysisfordrinkingwaterpathway samplesiftheannualdosefromI131isgreaterthan1mrem.Toevaluatetheneedfor implementationofthisadditionalanalysis,thedrinkingwaterpathwaydosefromI131 tothemaximumorganandagegroupwasevaluated.Therefore,theevaluationconfirms thatthedrinkingwaterpathwaydosefromI131waslessthanthe1mremlimitandthat theperformanceoftheI131specificanalysisisnotrequiredforWBNREMPdrinking watersamples.
1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Total I131Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Child/Thyroid (mrem) 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Population/Thyroid (mrem) 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00
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N. Errata/CorrectionstoPreviousARERRs TherearenocorrectiontopreviousARERRs.
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III.
GaseousEffluents Table1AGaseousEffluentsSummationofallReleasesforUnit1
- Applicablelimitsareexpressedintermsofdose.SeeTable3Athrough3Dofthisreport.
Units 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Total Error%
A.FissionandActivationGases
1.TotalRelease Curies 2.00E+01 8.95E+00 1.03E+01 8.42E+00 4.76E+01 22%
2.AverageReleaseRatefor Period uCi/sec 2.57E+00 1.14E+00 1.29E+00 1.06E+00 1.51E+00
3.PercentofTechSpecLimit
B.Iodines
1.TotalRelease Curies 4.29E-06 8.30E-06 5.07E-06 7.45E-06 2.51E-05 12%
2.AverageReleaseRatefor Period uCi/sec 5.51E-07 1.06E-06 6.38E-07 9.37E-07 7.96E-07
3.PercentofTechSpecLimit
C.Particulates
1.TotalRelease Curies 7.86E-06 2.43E-05 1.65E-07 1.15E-04 1.47E-04 15%
2.AverageReleaseRatefor Period uCi/sec 1.01E-06 3.09E-06 2.07E-08 1.44E-05 4.66E-06
3.PercentofTechSpecLimit
D.Tritium
1.TotalRelease Curies 1.51E+01 1.83E+01 5.26E+01 4.37E+01 1.29E+02 11%
2.AverageReleaseRatefor Period uCi/sec 1.94E+00 2.32E+00 6.61E+00 5.50E+00 4.11E+00
3.PercentofTechSpecLimit
4.TritiumfromOperatingasa TritiumProducingCore(TPC)
Curies 1.25E+01 1.51E+01 4.36E+01 3.63E+01 1.07E+02
5.AdjustedTritiumwithout TPCContribution Curies 2.56E+00 3.10E+00 8.94E+00 7.43E+00 2.20E+01
E.GrossAlpha
1.TotalRelease Curies 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 N/A 2.AverageReleaseRatefor Period uCi/sec 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00
3.PercentofTechSpecLimit
F.Carbon14
1.TotalRelease Curies 2.84E+00 2.87E+00 2.90E+00 0.82E+00 9.43E+00 N/A 2.AverageReleaseRatefor Period uCi/sec 3.65E01 3.65E01 3.65E01 1.03E01 3.00E00
3.PercentofTechSpecLimit
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Table1BGaseousEffluentsSummationofallReleasesforUnit2
- Applicablelimitsareexpressedintermsofdose.SeeTable3Ethrough3Hofthisreport.
Units 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Total Error%
A.FissionandActivationGases
1.TotalRelease Curies 3.95E+00 2.17E+00 1.25E+01 2.22E+01 4.08E+01 22%
2.AverageReleaseRatefor Period uCi/sec 5.08E-01 2.76E-01 1.58E+00 2.79E+00 1.29E+00
3.PercentofTechSpecLimit
B.Iodines
1.TotalRelease Curies 2.14E-06 5.98E-06 7.91E-06 7.09E-06 2.31E-05 12%
2.AverageReleaseRatefor Period uCi/sec 2.75E-07 7.60E-07 9.95E-07 8.92E-07 7.33E-07
3.PercentofTechSpecLimit
C.Particulates
1.TotalRelease Curies 7.79E-06 2.43E-05 0.00E+00 1.15E-04 1.47E-04 15%
2.AverageReleaseRatefor Period uCi/sec 1.00E-06 3.09E-06 0.00E+00 1.44E-05 4.65E-06
3.PercentofTechSpecLimit
D.Tritium
1.TotalRelease Curies 4.25E+00 5.15E+00 1.48E+01 1.23E+01 3.65E+01 11%
2.AverageReleaseRatefor Period uCi/sec 5.46E01 6.55E01 1.87E+00 1.55E+00 1.16E+00
3.PercentofTechSpecLimit
4.TritiumfromOperatingasa TritiumProducingCore(TPC)
Curies 2.55E+00 3.09E+00 8.90E+00 7.39E+00 2.19E+01
5.AdjustedTritiumwithout TPCContribution Curies 1.70E+00 2.06E+00 5.93E+00 4.93E+00 1.46E+01
E.GrossAlpha
1.TotalRelease Curies 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 N/A 2.AverageReleaseRatefor Period uCi/sec 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00
3.PercentofTechSpecLimit
F.Carbon14
1.TotalRelease Curies 2.47E+00 2.52E+00 1.99E+00 2.65E+00 9.63E+00 N/A 2.AverageReleaseRatefor Period uCi/sec 3.17E01 3.21E01 2.50E01 3.33E01 3.05E01
3.PercentofTechSpecLimit
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Table1CGaseousEffluents-GroundLevelReleasefromUnit1(Batch)
Units 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Total 1.FissionandActivationGases
Ar41 Ci 1.76+01 8.11E+00 9.10E+01 8.09E+00 4.29E+01 Kr85m Ci 1.07E02 2.61E06 9.79E03 5.81E03 2.63E02 Kr87 Ci 0.00E+00 2.07E02 0.00E+00 0.00E+00 2.07E02 Kr88 Ci 0.00E+00 0.00E+00 0.00E+00 3.19E05 3.19E05 Xe133m Ci 0.00E+00 2.20E05 3.03E04 4.54E04 7.79E04 Xe133 Ci 2.13E+00 7.33E01 1.13E+00 1.55E01 4.15E+00 Xe135m Ci 7.94E02 4.50E02 0.00E+00 0.00E+00 1.15E01 Xe135 Ci 1.19E01 3.60E02 8.53E03 4.02E02 2.05E01 Xe138 Ci 1.95E02 3.66E02 9.45E06 1.32E01 1.70E01 TotalForPeriod Ci 2.00+01 8.95E+00 1.03E+01 8.42E+00 4.76E+01 2.Iodines
TotalForPeriod Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 3.Particulates
TotalForPeriod Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 4.GrossAlpha
GrossAlpha Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 5.Tritium
H3 Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 6.Carbon14
C14(Total)
Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 C14(CO2Form)
Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 WBL-22-019 E24 of 77
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Table1CGaseousEffluents-GroundLevelReleasesfromUnit1(Continuous)
Units 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Total 1.FissionandActivationGases
TotalForPeriod Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 2.Iodines
Br82 Ci 2.63E06 3.10E06 4.16E06 3.25E06 1.31E05 I131 Ci 5.50E07 2.46E07 9.11E07 1.71E06 3.42E06 I133 Ci 1.11E06 4.96E06 0.00E+00 2.48E06 8.54E06 TotalForPeriod Ci 4.29E06 8.30E06 5.07E06 7.45E06 2.51E05 3.Particulates
Cr51 Ci 0.00E+00 0.00E+00 6.82E08 1.97E05 1.98E05 Mn54 Ci 0.00E+00 2.59E06 0.00E+00 3.38E06 5.97E06 Co57 Ci 9.52E07 0.00E+00 0.00E+00 3.08E07 1.26E06 Co58 Ci 6.65E08 7.22E06 8.97E08 5.05E05 5.79E05 Co60 Ci 6.84E06 1.44E05 6.67E09 2.73E05 4.86E05 Zr95 Ci 0.00E+00 0.00E+00 0.00E+00 3.23E06 3.23E06 Nb95 Ci 0.00E+00 0.00E+00 0.00E+00 6.22E06 6.22E06 Sb125 Ci 0.00E+00 0.00E+00 0.00E+00 3.86E06 3.86E06 TotalForPeriod Ci 7.86E06 2.43E05 1.65E07 1.15E04 1.47E04 4.GrossAlpha
GrossAlpha Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 5.Tritium
H3 Ci 1.51E+01 1.83E+01 5.26E+01 4.370E+01 1.29E+02 6.Carbon14
C14(Total)
Ci 2.84E+00 2.87E+00 2.90E+00 8.18E01 9.43E+00 C14(CO2Form)
Ci 5.68E01 5.75E01 5.81E01 1.64E01 1.89E+00 WBL-22-019 E25 of 77
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Table1DGaseousEffluents-GroundLevelReleasefromUnit2(Batch)
Units 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Total 1.FissionandActivationGases
Ar41 Ci 3.95E+00 2.13E+00 1.25E+01 2.22E+01 4.08E+01 Xe131m Ci 6.63E05 0.00E+00 9.61E05 0.00E+00 1.62E04 Xe133m Ci 0.00E+00 0.00E+00 1.57E04 0.00E+00 1.57E04 Xe133 Ci 7.68E05 1.28E02 1.72E02 0.00E+00 3.01E02 Xe135 Ci 0.00E+00 1.38E02 1.03E04 0.00E+00 1.39E02 Xe138 Ci 0.00E+00 6.24E03 0.00E+00 0.00E+00 6.24E03 TotalForPeriod Ci 3.95E+00 2.17E+00 1.25E+01 2.22E+01 4.08E+01 2.Iodines
TotalForPeriod Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 3.Particulates
TotalForPeriod Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 4.GrossAlpha
GrossAlpha Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 5.Tritium
H3 Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 6.Carbon14
C14(Total)
Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 C14(CO2Form)
Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 WBL-22-019 E26 of 77
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Table1DGaseousEffluents-GroundLevelReleasesfromUnit2(Continuous)
Units 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Total 1.FissionandActivationGases
TotalForPeriod Ci 0.00E+00 0.00E+00 1.78E+00 0.00E+00 0.00E+00 2.Iodines
Br82 Ci 4.82E07 8.78E07 6.83E06 2.90E06 1.11E05 I131 Ci 5.50E07 2.46E07 1.08E06 1.71E06 3.59E06 I133 Ci 1.11E06 4.85E06 0.00E+00 2.48E06 8.44E06 TotalForPeriod Ci 2.14E06 5.98E06 7.91E06 7.09E06 2.31E05 3.Particulates
Cr51 Ci 0.00E+00 0.00E+00 0.00E+00 1.97E05 1.97E05 Mn54 Ci 0.00E+00 2.59E06 0.00E+00 3.38E06 5.97E06 Co57 Ci 9.52E07 0.00E+00 0.00E+00 3.19E07 1.27E06 Co58 Ci 0.00E+00 7.22E06 0.00E+00 5.05E05 5.77E05 Co60 Ci 6.84E06 1.44E05 0.00E+00 2.73E05 4.86E05 Zr95 Ci 0.00E+00 0.00E+00 0.00E+00 3.23E06 3.23E06 Nb95 Ci 0.00E+00 0.00E+00 0.00E+00 6.22E06 6.22E06 Sb125 Ci 0.00E+00 0.00E+00 0.00E+00 3.86E06 3.86E06 TotalForPeriod Ci 7.79E06 2.43E05 0.00E+00 1.15E04 1.47E04 4.GrossAlpha
GrossAlpha Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 5.Tritium
H3 Ci 4.25E+00 5.15E+00 1.48E+01 1.23E+01 3.65E+01 6.Carbon14
C14(Total)
Ci 2.47E+00 2.52E+00 1.99E+00 2.65E+00 9.63E+00 C14(CO2Form)
Ci 4.93E01 5.05E01 3.98E01 5.30E01 1.93E+00 WBL-22-019 E27 of 77
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IV.
LiquidEffluents Table2ALiquidEffluentsSummationofallReleasesforUnit1
- Applicablelimitsareexpressedintermsofdose.SeeTable4Athrough4Dofthisreport.
Units 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Total Error%
A.FissionandActivationProducts
1.TotalRelease Curies 0.00E+00 0.00E+00 0.00E+00 3.42E02 3.42E02 25%
2.AverageDilutedConcentration uCi/mL 0.00E+00 0.00E+00 0.00E+00 4.83E09 5.81E10
3.PercentofTechSpecLimit
B.Tritium
1.TotalRelease Curies 4.45E+02 1.21E+03 2.22E+03 2.57E+03 6.44E+03 18%
2.AverageDilutedConcentration uCi/mL 2.30E05 6.42E05 1.63E04 3.64E04 1.09E04
3.PercentofTechSpecLimit
4.TritiumfromOperatingasa TritiumProducingCore(TPC)
Curies 3.70E+02 1.05E+03 1.93E+03 2.25E+03 5.62E+03
5.AdjustedTritiumwithoutTPC Contribution Curies 7.57E+01 1.54E+02 2.83E+02 3.29E+02 8.23E+02
C.DissolvedandEntrainedNobleGases
1.TotalRelease Curies 3.49E05 6.30E05 5.05E04 9.70E04 1.57E03 39%
2.AverageDilutedConcentration uCi/mL 1.80E12 3.35E12 3.71E11 1.37E10 2.67E11
3.PercentofTechSpecLimit
D.GrossAlphaRadioactivity
1.TotalRelease Curies 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 N/A
E.VolumeofLiquidWasteto DischargeCanal(priortodilution)
Liters 3.70E+08 4.57E+08 4.26E+08 4.86E+08 1.74E+09 2%
F.VolumeofDilutionWaterfor Period Liters 1.94E+10 1.88E+10 1.36E+10 7.08E+09 5.89E+10 12%
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Table2BLiquidEffluentsSummationofallReleasesforUnit2
- Applicablelimitsareexpressedintermsofdose.SeeTable4Ethrough4Hofthisreport.
Units 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Total Error%
A.FissionandActivationProducts
1.TotalRelease Curies 0.00E+00 0.00E+00 0.00E+00 3.42E02 3.42E02 25%
2.AverageDilutedConcentration uCi/mL 0.00E+00 0.00E+00 0.00E+00 2.48E09 5.35E10
3.PercentofTechSpecLimit
B.Tritium
1.TotalRelease Curies 1.26E+02 3.41E+02 6.25E+02 7.26E+02 1.82E+03 18%
2.AverageDilutedConcentration uCi/mL 6.53E06 1.72E05 5.67E05 5.26E05 2.84E05
3.PercentofTechSpecLimit
4.TritiumfromOperatingasa TritiumProducingCore(TPC)
Curies 7.54E+01 2.05E+02 3.75E+02 4.36E+02 1.09E+03
5.AdjustedTritiumwithoutTPC Contribution Curies 5.02E+01 1.36E+02 2.50E+02 2.90E+02 7.27E+02
C.DissolvedandEntrainedNobleGases
1.TotalRelease Curies 3.49E05 6.30E05 5.05E04 9.70E04 1.57E03 39%
2.AverageDilutedConcentration uCi/mL 1.81E12 3.18E12 4.58E11 7.03E11 2.46E11
3.PercentofTechSpecLimit
D.GrossAlphaRadioactivity
1.TotalRelease Curies 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 N/A
E.VolumeofLiquidWasteto DischargeCanal(priortodilution)
Liters 3.83E+08 4.47E+08 3.94E+08 5.14E+08 1.74E+09 2%
F.VolumeofDilutionWaterfor Period Liters 1.92E+10 1.98E+10 1.10E+10 1.38E+10 6.39E+10 12%
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Table2CLiquidEffluents-Unit1BatchMode
Units 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Total 1.FissionandActivationProducts
Na24 Ci 0.00E+00 0.00E+00 0.00E+00 2.64E06 2.64E06 Cr51 Ci 0.00E+00 0.00E+00 0.00E+00 2.71E03 2.71E03 Mn54 Ci 0.00E+00 0.00E+00 0.00E+00 6.35E04 6.35E04 Mn56 Ci 0.00E+00 0.00E+00 0.00E+00 1.44E06 1.44E06 Fe59 Ci 0.00E+00 0.00E+00 0.00E+00 3.11E05 3.11E05 Co58 Ci 0.00E+00 0.00E+00 0.00E+00 2.28E02 2.28E02 Co60 Ci 0.00E+00 0.00E+00 0.00E+00 3.73E03 3.73E03 Ni63 Ci 0.00E+00 0.00E+00 0.00E+00 1.72E03 1.72E03 Zn65 Ci 0.00E+00 0.00E+00 0.00E+00 3.72E06 3.72E06 Zr95 Ci 0.00E+00 0.00E+00 0.00E+00 4.42E04 4.42E04 Zr97 Ci 0.00E+00 0.00E+00 0.00E+00 1.75E06 1.75E06 Nb95 Ci 0.00E+00 0.00E+00 0.00E+00 6.50E04 6.50E04 Nb97 Ci 0.00E+00 0.00E+00 0.00E+00 1.10E06 1.10E06 Mo99 Ci 0.00E+00 0.00E+00 0.00E+00 8.70E07 8.70E07 Ag110m Ci 0.00E+00 0.00E+00 0.00E+00 2.92E05 2.92E05 Sn117m Ci 0.00E+00 0.00E+00 0.00E+00 5.30E07 5.30E07 Sb124 Ci 0.00E+00 0.00E+00 0.00E+00 8.80E05 8.80E05 Sb125 Ci 0.00E+00 0.00E+00 0.00E+00 1.31E03 1.31E03 I135 Ci 0.00E+00 0.00E+00 0.00E+00 5.05E06 5.05E06 Total Ci 0.00E+00 0.00E+00 0.00E+00 3.24E02 3.42E02 2.Tritium
H3 Ci 4.45E+02 1.21E+03 2.22E+03 2.54E+03 6.40E+03 3.DissolvedandEntrainedGases
Ar41 Ci 0.00E+00 0.00E+00 0.00E+00 2.79E06 2.79E06 Kr85m Ci 0.00E+00 0.00E+00 5.45E07 0.00E+00 5.45E07 Xe131m Ci 1.76E05 0.00E+00 2.17E05 0.00E+00 3.93E05 Xe133m Ci 0.00E+00 0.00E+00 0.00E+00 1.83E05 1.83E05 Xe133 Ci 1.73E05 6.25E05 4.75E04 8.85E04 1.44E03 Xe135m Ci 0.00E+00 0.00E+00 0.00E+00 1.07E05 1.07E05 Xe135 Ci 0.00E+00 5.45E07 5.80E06 5.10E05 5.75E05 Xe138 Ci 0.00E+00 0.00E+00 1.44E06 0.00E+00 1.44E06 Total Ci 3.49E05 6.30E05 5.05E04 9.70E04 1.57E03 4.GrossAlphaRadioactivity
TotalForPeriod Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 WBL-22-019 E30 of 77
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Table2CLiquidEffluents-Unit1ContinuousMode
Units 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Total 1.FissionandActivationProducts
TotalForPeriod Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 2.Tritium
H3 Ci 6.67E01 1.11E+00 1.28E+00 3.69E+01 4.00E+01 3.DissolvedandEntrainedGases
TotalForPeriod Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 4.GrossAlphaRadioactivity
TotalForPeriod Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 WBL-22-019 E31 of 77
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Table2DLiquidEffluents-Unit2BatchMode
Units 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Total 1.FissionandActivationProducts
Na24 Ci 0.00E+00 0.00E+00 0.00E+00 2.63E06 2.63E06 Cr51 Ci 0.00E+00 0.00E+00 0.00E+00 2.70E03 2.70E03 Mn54 Ci 0.00E+00 0.00E+00 0.00E+00 6.35E04 6.35E04 Mn56 Ci 0.00E+00 0.00E+00 0.00E+00 1.44E06 1.44E06 Co58 Ci 0.00E+00 0.00E+00 0.00E+00 2.28E02 2.28E02 Fe59 Ci 0.00E+00 0.00E+00 0.00E+00 3.11E05 3.11E05 Co60 Ci 0.00E+00 0.00E+00 0.00E+00 3.73E03 3.73E03 Ni63 Ci 0.00E+00 0.00E+00 0.00E+00 1.72E03 1.72E03 Zn65 Ci 0.00E+00 0.00E+00 0.00E+00 3.72E06 3.72E06 Zr95 Ci 0.00E+00 0.00E+00 0.00E+00 4.41E04 4.41E04 Nb95 Ci 0.00E+00 0.00E+00 0.00E+00 6.49E04 6.49E04 Zr97 Ci 0.00E+00 0.00E+00 0.00E+00 1.75E06 1.75E06 Nb97 Ci 0.00E+00 0.00E+00 0.00E+00 1.10E06 1.10E06 Mo99 Ci 0.00E+00 0.00E+00 0.00E+00 8.71E07 8.71E07 Ag110m Ci 0.00E+00 0.00E+00 0.00E+00 2.92E05 2.92E05 Sn117m Ci 0.00E+00 0.00E+00 0.00E+00 5.31E07 5.31E07 Sb124 Ci 0.00E+00 0.00E+00 0.00E+00 8.80E05 8.80E05 Sb125 Ci 0.00E+00 0.00E+00 0.00E+00 1.31E03 1.31E03 I135 Ci 0.00E+00 0.00E+00 0.00E+00 5.07E06 5.07E06 TotalForPeriod Ci 0.00E+00 0.00E+00 0.00E+00 3.24E02 3.42E02 2.Tritium
H3 Ci 1.26E+02 3.41E+02 6.25E+02 7.17E+02 1.81E+03 3.DissolvedandEntrainedGases
Ar41 Ci 0.00E+00 0.00E+00 0.00E+00 2.79E06 2.79E06 Kr85m Ci 0.00E+00 0.00E+00 5.45E07 0.00E+00 5.45E07 Xe131m Ci 1.75E05 0.00E+00 2.17E05 0.00E+00 3.92E05 Xe133m Ci 0.00E+00 0.00E+00 0.00E+00 1.83E05 1.83E05 Xe133 Ci 1.73E05 6.25E05 4.75E04 8.85E04 1.44E03 Xe135m Ci 0.00E+00 0.00E+00 0.00E+00 1.07E05 1.07E05 Xe135 Ci 0.00E+00 5.45E07 5.80E06 5.10E05 5.75E05 Xe138 Ci 0.00E+00 0.00E+00 1.44E06 0.00E+00 1.44E06 TotalForPeriod Ci 3.49E05 6.30E05 5.05E04 9.70E04 1.57E03 4.GrossAlphaRadioactivity
TotalForPeriod Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 WBL-22-019 E32 of 77
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Table2DLiquidEffluents-Unit2ContinuousMode
Units 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Total 1.FissionandActivationProducts
TotalForPeriod Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 2.Tritium
H3 Ci 1.88E01 3.12E01 3.61E01 1.04E+01 1.13E+01 3.DissolvedandEntrainedGases
TotalForPeriod Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 4.GrossAlphaRadioactivity
TotalForPeriod Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 WBL-22-019 E33 of 77
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V.
SolidWasteStorageandShipment A. TypesofSolidWaste-Summary
B. DestinationbyCarrier
NumberofShipments ModeofTransportation Destination 1
MotorFreight WasteControlSpecialistAndrews,TX 3
MotorFreight EnergySolutions,CliveUtah 3
MotorFreight EnergySolutions,MemphisTN 2
MotorFreight EnergySolutions,OakRidgeTN 9
MotorFreight TOXCOOakRidge,TN
TypeofWaste
Unit
12Month Period Est.(Ci)
Error%
Spentresins,filters,sludges,evaporator bottoms,etc.
m3 12.99E+00 N/A Ci 1.56E+02
+/25%
DryActiveWaste,CompressibleWaste ContaminatedEquipment,etc.
m3 6.65E+02 N/A Ci 1.45E+00
+/25%
IrradiatedComponents,ControlRods,etc.
m3 0.00 N/A Ci 0.00 N/A WBL-22-019 E34 of 77
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C. MajorNuclidesbyWasteClassandStream
(Cutoff=1.0%)
Spentresins,filters,sludges,evaporator bottoms,etc.(nuclidesdeterminedby measurement Nuclide Percent Ci
Be7 1.14%
2.75E+00
Mn54 8.71%
1.71E+01
Fe55 22.01%
4.31E+01
Co58 27.18%
5.33E+00
Co60 23.10%
4.53E+01
Ni63 13.44%
2.63E+01
Zn65 1.70%
3.33E+00
DryActiveWaste,CompressibleWaste ContaminatedEquipment,etc.(nuclides determinedbyestimate)
Nuclide Percent Ci
H3 47.03%
7.24E01
Mn54 2.81%
3.36E02
Fe55 7.62%
1.17E01
Co58 4.26%
6.56E02
Co60 19.30%
2.97E01
Ni63 3.59%
5.52E02
Zr95 3.49%
5.37E02
Nb95 7.30%
8.71E03
Sb125 2.73%
4.21E02
Cs137 1.44%
2.22E02
IrradiatedComponents None N/A N/A WBL-22-019 E35 of 77
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D. IrradiatedFuelShipments None E. SolidificationofWaste Wassolidificationperformed?No Ifyes,solidificationmedia:N/A
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VI.
RadiologicalImpacttoMan A. Introduction PotentialdosestomaximumindividualsandthepopulationaroundWBNarecalculated foreachquarterasrequiredinSection5.2oftheODCM.Measuredplantreleasesforthe reportingperiodareusedtoestimatethesedoses.Dispersionofradioactiveeffluentsinthe environmentisestimatedusingmeteorologicaldataandriverflowdata.Inthisreport,the dosesresultingfromreleasesaredescribedandcomparedtolimitsestablishedforWBN.
B. DoseLimits TheODCMspecifieslimitsforthereleaseofradioactiveeffluents,aswellaslimitsfor dosestothegeneralpublic,fromthereleaseofradioactiveeffluents.Theselimitsareset wellbelowtheTechnicalSpecificationlimitswhichgoverntheconcentrationsofradioactivity anddosespermissibleinunrestrictedareas.Thisensuresthatradioactiveeffluentreleases areaslowasreasonablyachievable.
C. DoseCalculations Estimateddosestothepublicaredeterminedusingcomputermodels(theGaseous EffluentLicensingCode,GELC,andtheQuarterlyWaterDoseAssessmentCode,QWATA).
ThesemodelsarebasedonguidanceprovidedbytheNRC(inRegulatoryGuides1.109,1.111 and1.113)fordeterminingthepotentialdosetoindividualsandpopulationslivinginthe vicinityoftheplant.Theareaaroundtheplantisanalyzedtodeterminethepathways throughwhichthepublicmayreceiveadose.Thedosescalculatedarearepresentationof thedosetoa"maximumexposedindividual."Someofthefactorsusedinthesecalculations (suchasingestionrates)aremaximumvalues.Manyofthesefactorsareobtainedfrom NUREG/CR1004.Thevalueschosenwilltendtooverestimatethedosetothis"maximum" person.Theexpecteddosetoactualindividualsislower.Thecalculateddosesarepresented inTables3and4.
D. DosesfromAirborneEffluents Forairborneeffluents,thepubliccanbeexposedtoradiationfromseveralsources:direct radiationfromtheradioactivityintheair,directradiationfromradioactivitydepositedonthe ground,inhalationofairborneradioactivity,ingestionofvegetationwhichcontains radioactivitydepositedfromtheatmosphere,andingestionofmilkandbeefwhichcontains radioactivitydepositedfromtheatmosphereontovegetationandsubsequentlyeatenby milkandbeefanimals.
AirborneDischargePoints AllreleasesfromWBNareconsideredgroundlevelreleases.ThegroundlevelJoint FrequencyDistribution(JFD)isderivedfromwindspeedsanddirectionsmeasured10meters abovegroundandfromtheverticaltemperaturedifferencebetween10and46meters,as presentedforeachquarterinSectionVIII.
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MeteorologicalData MeteorologicalvariablesatWBNaremeasuredcontinuously.Measurementscollected includewindspeed,winddirection,andtemperatureatheightsof10,46,and91meters abovetheground.QuarterlyJFDsarecalculatedforeachreleasepointusingtheappropriate levelsofmeteorologicaldata.AJFDprovidesthepercentageofthetimeinaquarterthatthe windisblowingoutofaparticularupwindcompasssectorinaparticularrangeofwind speedsforagivenstabilityclassAthroughG.Thewindspeedsaredividedintoninewind speedranges.Calmsaredistributedbydirectioninproportiontothedistributionofnoncalm winddirectionslessthan0.7m/s(1.5mph).Stabilityclassesaredeterminedfromthevertical temperaturedifferencebetweentwomeasurementlevels.
ExternalExposureDose Doseestimatesformaximumexternalairdose(gammaairandbetaairdoses)aremade forpointsatandbeyondtheunrestrictedareaboundaryasdescribedintheWBNODCM.
Thehighestofthesedosesisthenselected.
SubmersionDose Externaldosestotheskinandtotalbody,duetosubmersioninacloudofnoblegases,are estimatedforthenearestresidenceineachsector.Theresidencewiththehighestdoseis thenselectedfromallsectors.
OrganDose Dosestoorgansduetoreleasesofairborneeffluentsareestimatedfortheinhalation, groundcontamination,andingestionpathways.Theingestionpathwayisfurtherdividedinto threepossiblecontributingpathways:ingestionofcowmilk,ingestionofbeef,andingestion ofvegetables.Dosesfromapplicablepathwaysarecalculatedforeachrealreceptorlocation identifiedinthemostrecentlandusesurvey.Todeterminethemaximumorgandose,the dosesfromthepathwaysaresummedforeachreceptor.Fortheingestiondose,however, onlythosepathwaysthatexistforeachreceptorareconsideredinthesum,i.e.,milk ingestiondosesareincludedonlyforlocationswheremilkisconsumedwithoutcommercial preparationandvegetableingestionisincludedonlyforthoselocationswhereagardenis identified.Sincespecificdataonbeefanimalswerenotavailable,thelocationofthehighest beefdoseforallreceptorswithinanagegroupwillbeconsideredthebeefdoseforeach receptorwithinthatagegroup.Forgroundcontamination,thedoseaddedtotheorgandose beingcalculatedisthetotalbodydosecalculatedforthatlocation,i.e.,itisassumedthatthe dosetoanindividualorganisequaltothetotalbodydose.
DosesfromairborneeffluentsfromUnit1arepresentedinTables3Athrough3D.Doses fromairborneeffluentsfromUnit2arepresentedinTables3Ethrough3H.
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E. DosesfromLiquidEffluents Forliquideffluents,thepubliccanbeexposedtoradiationfromthreesources:the ingestionofwaterfromtheTennesseeRiver,theingestionoffishcaughtintheTennessee River,anddirectexposurefromradioactivematerialdepositedontherivershoreline sediment(recreation).
TheconcentrationsofradioactivityintheTennesseeRiverareestimatedbyacomputer modelwhichusesmeasuredhydraulicdatadownstreamofWBN.Parametersusedto determinethedosesarebasedonguidancegivenbytheNRC(inRegulatoryGuide1.109)for maximumingestionrates,exposuretimes,etc.Whereverpossible,parametersusedinthe dosecalculationaresitespecificusefactorsdeterminedbyTVA.Themodelsthatareusedto estimatedoses,aswellastheparametersinputtothemodels,aredescribedindetailinthe WBNODCM.
LiquidReleasePointsandRiverData RadioactivityconcentrationsintheTennesseeRiverarecalculatedassumingthatreleases inliquideffluentsarecontinuous.AllroutineliquidreleasesfromWBN,locatedatTennessee RiverMile528.5,aremadethroughdiffuserswhichextendintotheTennesseeRiver.Itis assumedthatreleasestotheriverthroughthesediffuserswillinitiallybeentrainedinone tenthofthewaterwhichflowspasttheplant.TheQWATAcodemakestheassumptionthat thismixingconditionholdstrueuntilthewateriscompletelymixedatTennesseeRiverMile 510.0.
Dosesarecalculatedforlocationswithina50mileradiusdownstreamoftheplantsite.
Themaximumpotentialrecreationdoseiscalculatedforalocationimmediatelydownstream fromtheplantoutfall.Themaximumindividualdosefromingestionoffishisassumedtobe thatcalculatedfortheconsumptionoffishcaughtanywherebetweentheplantandthefirst downstreamdam(ChickamaugaDam).Themaximumindividualdosefromdrinkingwateris assumedtobethatcalculatedatthenearestdownstreampublicwatersupply(Dayton,TN).
Thiscouldbeinterpretedasindicatingthatthemaximumindividual,asassumedforliquid releasesfromWBN,isanindividualwhoobtainsallofhisdrinkingwateratDayton,TN, consumesfishcaughtfromtheTennesseeRiverbetweenWBNandChickamaugaDam,and spends500hoursperyearontheshorelinejustbelowtheoutfallfromWBN.Doseestimates forthemaximumindividualduetoliquideffluentsforeachquarterintheperiodare presentedinTables4Athrough4H,alongwiththeaverageriverflowspasttheplantsitefor theperiods.
F. PopulationDoses Populationdosesforhighestexposedorganduetoairborneeffluentsarecalculatedfora projected2040populationdistributionof1,523,385personslivingwithina50mileradiusof theplantsite.Dosesfromexternalpathwaysandinhalationarebasedonthe50milehuman populationdistribution.Ingestionpopulationdosesarecalculatedassumingthateach individualconsumesmilk,vegetables,andmeatproducedwithinthesectorannulusinwhich heresides.Dosesfromexternalpathwaysandinhalationarebasedonthe50milehuman populationdistribution.
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Populationdosesfortotalbodyandthemaximumexposedorganduetoliquideffluents arecalculatedfortheentiredownstreamTennesseeRiverPopulation.Wateringestion populationdosesarecalculatedusingactualpopulationfiguresfordownstreampublicwater supplies.Fishingestionpopulationdosesarecalculatedassumingthatallsportfishcaughtin theTennesseeRiverareconsumedbytheTennesseeRiverpopulation.Recreation populationdosesarecalculatedusingactualrecreationaldataonthenumberofshoreline visitsatdownstreamlocations.
PopulationdoseestimatesforairborneandliquideffluentsfromUnit1arepresentedin Tables3Athrough3Dand4Athrough4D.Populationdoseestimatesforairborneand liquideffluentsfromUnit2arepresentedinTables3Ethrough3Hand4Ethrough4H.
G. OffsiteDirectRadiationDose ExternalgammaradiationlevelsweremeasuredbyLandauerInLight(opticallystimulated luminescencedosimeters(OSLDs)deployedaroundWBNaspartoftheoffsiteRadiological EnvironmentalMonitoringProgram.Thequarterlygammaradiationlevelsdeterminedfrom thesedosimetersduringthisreportingperiodaveraged15.4mR/quarteratonsite(atornear thesiteboundary)stationsand14.5mR/quarteratoffsitestationsor0.9mR/quarterhigher onsitethanatoffsitestations.Thisdifferenceisconsistentwithlevelsmeasuredfor preoperationalandconstructionphasesoftheWBNplantsitewheretheaverageradiation levelsonsiteweregenerally28mR/quarterhigherthanthelevelsoffsite.Thismaybe attributabletonaturalvariationsinenvironmentalradiationlevels,earthmovingactivities onsite,themassofconcreteemployedintheconstructionoftheplants,orother undeterminedinfluences.Fluctuationsinnaturalbackgrounddoseratesandindosimeters readingstendtomaskanysmallincrementswhichmaybeduetoplantoperations.Thus, therewasnoidentifiableincreaseindoseratelevelsattributabletodirectradiationfrom plantequipmentand/orgaseouseffluents.
H. DosetoaMemberofthePublicInsidetheSiteBoundary AsstatedintheWBNODCM,anevaluationofthedosetoamemberofthepublicinside theunrestrictedareaboundaryisperformedforahypotheticalTVAemployeewhoworks justoutsidetherestrictedareaboundaryforanentireworkyear(2000hours).Resultsfrom onsitedosimetermeasurementsindicatedthatthehighestannualdosimeterreadingoutside RadiologicalControlAreawas70mrem.Usingthisvalue,subtractinganannualbackground valueofapproximately50mrem/year,andmultiplyingbytheratiooftheoccupancytimes (2000/8760),thehighestexternaldosetoamemberofthepublicinsidetheunrestricted areaboundarywouldbe4.6mrem.Thedosesduetoradioactiveeffluentsreleasedtothe atmospherecalculatedinthisreportwouldnotaddasignificantamounttothismeasured dose.Thisdoseisbelowthe10CFR20annuallimitof100mrem.
I. TotalDose Todeterminecompliancewith40CFR190,annualtotaldosecontributionstothe maximumindividualfromWBNradioactiveeffluentsandallothernearbyuraniumfuelcycle sourcesareconsidered.
Theannualdosetoanyorganotherthanthyroidforthemaximumindividualis conservativelyestimatedbysummingthefollowingdoses:thetotalbodyairsubmersion WBL-22-019 E40 of 77
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doseforeachquarter,thecriticalorgandose(foranyorganotherthanthethyroid)from airborneeffluentsforeachquarterfromgroundcontamination,inhalationandingestion,the totalbodydosefromliquideffluentsforeachquarter,themaximumorgandose(forany organotherthanthethyroid)fromliquideffluentsforeachquarter,andanyidentifiable increaseindirectradiationdoselevelsasmeasuredbytheenvironmentalmonitoring program.Thisdoseiscomparedtothe40CFR190limitfortotalbodyoranyorgandose (otherthanthyroid)todeterminecompliance.
Theannualthyroiddosetothemaximumindividualisconservativelyestimatedby summingthefollowingdoses:thetotalbodyairsubmersiondoseforeachquarter,the thyroiddosefromairborneeffluentsforeachquarter,thetotalbodydosefromliquid effluentsforeachquarter,thethyroiddosefromliquideffluentsforeachquarter,andany identifiableincreaseindirectradiationdoselevelsasmeasuredbytheenvironmental monitoringprogram.Thisdoseiscomparedtothe40CFR190limitforthyroiddoseto determinecompliance.CumulativeannualtotaldosesarepresentedinTable5.
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J. Tables Table3ADosesfromUnit1AirborneEffluents-1stQuarter IndividualDoses Pathway Dose QuarterlyLimit PercentofLimit Location BetaAir 1.98E02mrad 1.00E+01mrad 1.98E01 ENE1370meters GammaAir 5.35E02mrad 5.00E+00mrad 1.07E+00 ENE1370meters NGSkin 2.08E02mrad N/A N/A SE1409meters NGTotalBody 1.41E02mrad N/A N/A SE1409meters OrganDoses (Iodine,Tritium,Particulateswith>8Dayhalflife)
(Max)Child/
Bone 4.95E01mrem 7.5mrem 6.54E+00 NE3661meters Child/Thyroid 1.20E01mrem 7.5mrem 1.54E+00 SE1409meters Child/Total Body 1.20E01mrem 7.5mrem 1.54E+00 SE1409meters
PopulationDoses TotalBodyDose 3.57E01manrem MaximumOrganDose(Organ) 1.44E+00manrem(Bone)
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Table3BDosesfromUnit1AirborneEffluents-2ndQuarter IndividualDoses Pathway Dose QuarterlyLimit PercentofLimit Location BetaAir 4.28E02mrad 1.00E+01mrad 4.82E01 ENE1370meters GammaAir 1.57E02mrad 5.00E+00mrad 3.14E01 ENE1370meters NGSkin 1.59E02mrad N/A N/A ENE3072meters NGTotalBody 1.07E02mrad N/A N/A ENE3072meters OrganDoses (Iodine,Tritium,Particulateswith>8Dayhalflife)
(Max)Child/
Bone 9.07E01mrem 7.5mrem 12.1E+00 NE3661meters Child/Thyroid 2.10E01mrem 7.5mrem 2.80E+00 NE3661meters Child/Total Body 2.10E01mrem 7.5mrem 2.80E+00 NE3661meters
PopulationDoses TotalBodyDose 5.55E01manrem MaximumOrganDose(Organ) 2.20E+00manrem(Bone)
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Table3CDosesfromUnit1AirborneEffluents-3rdQuarter IndividualDoses Pathway Dose QuarterlyLimit PercentofLimit Location BetaAir 1.57E01mrad 1.00E+01mrad 1.57E+00 ENE1370meters GammaAir 4.42E01mrad 5.00E+00mrad 8.84E+00 ENE1370meters NGSkin 1.59E01mrad N/A N/A ENE3072meters NGTotalBody 1.08E01mrad N/A N/A ENE3072meters OrganDoses (Iodine,Tritium,Particulateswith>8Dayhalflife)
(Max)Child/
Bone 7.68E01mrem 7.5mrem 1.02E+01 NE3661meters Child/Thyroid 2.62E01mrem 7.5mrem 3.49E+00 SE1409meters Child/Total Body 2.62E01mrem 7.5mrem 3.49E+00 SE1409meters
PopulationDoses TotalBodyDose 7.36E01manrem MaximumOrganDose(Organ) 2.16E+00manrem(Bone)
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Table3DDosesfromUnit1AirborneEffluents-4thQuarter IndividualDoses Pathway Dose QuarterlyLimit PercentofLimit Location BetaAir 1.37E02mrad 1.00E+01mrad 1.37E01 ESE1250meters GammaAir 3.82E02mrad 5.00E+00mrad 7.64E01 ESE1250meters NGSkin 1.71E02mrad N/A N/A SE1409meters NGTotalBody 1.60E02mrad N/A N/A SE1409meters OrganDoses (Iodine,Tritium,Particulateswith>8Dayhalflife)
(Max)Child/
Bone 3.12E01mrem 7.5mrem 4.16E+00 SE1409meters Child/Thyroid 1.24E01mrem 7.5mrem 1.65E+00 SE1409meters Child/Total Body 1.24E01mrem 7.5mrem 1.65E+00 SE1409meters
PopulationDoses TotalBodyDose 4.25E01manrem MaximumOrganDose(Organ) 8.64E01manrem(Bone)
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Table3EDosesfromUnit2AirborneEffluents-1stQuarter IndividualDoses Pathway Dose QuarterlyLimit PercentofLimit Location BetaAir 4.20E03mrad 1.00E+01mrad 4.2E02 ENE1370meters GammaAir 1.19E02mrad 5.00E+00mrad 2.38E01 ENE1370meters NGSkin 4.65E03mrad N/A N/A SE1409meters NGTotalBody 3.16E03mrad N/A N/A SE1409meters OrganDoses (Iodine,Tritium,Particulateswith>8Dayhalflife)
(Max)Child/
Bone 4.16E01mrem 7.5mrem 5.55E+00 NE3661meters Child/Thyroid 8.79E02mrem 7.5mrem 1.17E+00 SE1409meters Child/Total Body 8.79E02mrem 7.5mrem 1.17E+00 SE1409meters
PopulationDoses TotalBodyDose 2.59E01manrem MaximumOrganDose(Organ) 1.20E+00manrem(Bone)
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Table3FDosesfromUnit2AirborneEffluents-2ndQuarter IndividualDoses Pathway Dose QuarterlyLimit PercentofLimit Location BetaAir 3.96E03mrad 1.00E+01mrad 3.96E02 ENE1370meters GammaAir 1.12E02mrad 5.00E+00mrad 2.24E01 ENE1370meters NGSkin 4.19E03mrad N/A N/A ENE3072meters NGTotalBody 2.86E03mrad N/A N/A ENE3072meters OrganDoses (Iodine,Tritium,Particulateswith>8Dayhalflife)
(Max)Child/
Bone 7.75E01mrem 7.5mrem 10.3E+00 NE3661meters Child/Thyroid 1.63E01mrem 7.5mrem 2.17E+00 NE3661meters Child/Total Body 1.63E01mrem 7.5mrem 2.17E+00 NE3661meters
PopulationDoses TotalBodyDose 4.02E01manrem MaximumOrganDose(Organ) 1.85E+00manrem(Bone)
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Table3GDosesfromUnit2AirborneEffluents-3rdQuarter IndividualDoses Pathway Dose QuarterlyLimit PercentofLimit Location BetaAir 2.14E02mrad 1.00E+01mrad 2.14E01 ENE1370meters GammaAir 6.07E02mrad 5.00E+00mrad 1.21E+00 ENE1370meters NGSkin 2.17E02mrad N/A N/A ENE3072meters NGTotalBody 1.48E02mrad N/A N/A ENE3072meters OrganDoses (Iodine,Tritium,Particulateswith>8Dayhalflife)
(Max)Child/
Bone 4.71E01mrem 7.5mrem 6.28E+00 NE3661meters Child/Thyroid 1.13E01mrem 7.5mrem 1.51E+00 NE3661meters Child/Total Body 1.13E01mrem 7.5mrem 1.51E+00 NE3661meters
PopulationDoses TotalBodyDose 3.45E01manrem MaximumOrganDose(Organ) 1.32E+00manrem(Bone)
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Table3HDosesfromUnit2AirborneEffluents-4thQuarter IndividualDoses Pathway Dose QuarterlyLimit PercentofLimit Location BetaAir 3.68E02mrad 1.00E+01mrad 3.68E01 ESE1250meters GammaAir 1.04E01mrad 5.00E+00mrad 2.08E+00 ESE1250meters NGSkin 4.62E02mrad N/A N/A SE1409meters NGTotalBody 3.14E02mrad N/A N/A SE1409meters OrganDoses (Iodine,Tritium,Particulateswith>8Dayhalflife)
(Max)Child/
Bone 8.10E01mrem 7.5mrem 10.8E+00 SE1409meters Child/Thyroid 2.02E01mrem 7.5mrem 2.69E+00 SE1409meters Child/Total Body 2.02E01mrem 7.5mrem 2.69E+00 SE1409meters
PopulationDoses TotalBodyDose 4.53E01manrem MaximumOrganDose(Organ) 1.87E+00manrem(Bone)
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Table4ADosesfromUnit1LiquidEffluents-1stQuarter IndividualDoses AgeGroup Organ Dose QuarterlyLimit PercentofLimit Child Bone 1.30E03mrem 5.00E+00 2.60E02 Child GILLI 1.30E03mrem 5.00E+00 2.60E02 Child Kidney 1.30E03mrem 5.00E+00 2.60E02 Child Liver 1.30E03mrem 5.00E+00 2.60E02 Child Lung 1.30E03mrem 5.00E+00 2.60E02 Child Thyroid 1.30E03mrem 5.00E+00 2.60E02 Child TotalBody 1.30E03mrem 1.50E+00 8.67E02 AverageriverflowpastWBN(cubicfeetpersecond):44,582cfs PopulationDoses TotalBodyDose 1.10E01manrem MaximumOrganDose(Organ) 1.10E01manrem(Bone,GILLI,Kidney,Liver,Lung,Thyroid)
Table4BDosesfromUnit1LiquidEffluents-2ndQuarter IndividualDoses AgeGroup Organ Dose QuarterlyLimit PercentofLimit Child Bone 6.50E03mrem 5.00E+00 1.30E01 Child GILLI 6.50E03mrem 5.00E+00 1.30E01 Child Kidney 6.50E03mrem 5.00E+00 1.30E01 Child Liver 6.50E03mrem 5.00E+00 1.30E01 Child Lung 6.50E03mrem 5.00E+00 1.30E01 Child Thyroid 6.50E03mrem 5.00E+00 1.30E01 Child TotalBody 6.50E03mrem 1.50E+00 4.33E01 AverageriverflowpastWBN(cubicfeetpersecond):23,902cfs PopulationDoses TotalBodyDose 5.50E01manrem MaximumOrganDose(Organ) 5.50E01manrem(Bone,GILLI,Kidney,Liver,Lung,Thyroid)
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Table4CDosesfromUnit1LiquidEffluents-3rdQuarter IndividualDoses AgeGroup Organ Dose QuarterlyLimit PercentofLimit Child Bone 1.20E02mrem 5.00E+00 2.40E01 Child GILLI 1.20E02mrem 5.00E+00 2.40E01 Child Kidney 1.20E02mrem 5.00E+00 2.40E01 Child Liver 1.20E02mrem 5.00E+00 2.40E01 Child Lung 1.20E02mrem 5.00E+00 2.40E01 Child Thyroid 1.20E02mrem 5.00E+00 2.40E01 Child TotalBody 1.20E02mrem 1.50E+00 8.00E01 AverageriverflowpastWBN(cubicfeetpersecond):23,826cfs PopulationDoses TotalBodyDose 9.70E01manrem MaximumOrganDose(Organ) 9.70E01manrem(Bone,GILLI,Kidney,Liver,Lung,Thyroid)
Table4DDosesfromUnit1LiquidEffluents-4thQuarter IndividualDoses AgeGroup Organ Dose QuarterlyLimit PercentofLimit Child Bone 1.30E02mrem 5.00E+00 2.60E01 Adult GILLI 1.40E02mrem 5.00E+00 2.80E01 Child Kidney 1.20E02mrem 5.00E+00 2.40E01 Child Liver 1.20E02mrem 5.00E+00 2.40E01 Child Lung 1.20E02mrem 5.00E+00 2.40E01 Child Thyroid 1.20E02mrem 5.00E+00 2.40E01 Child TotalBody 1.20E02mrem 1.50E+00 8.00E01 AverageriverflowpastWBN(cubicfeetpersecond):27,974cfs PopulationDoses TotalBodyDose 1.10E+00manrem MaximumOrganDose(Organ) 1.10E+00manrem(Bone,GILLI,Kidney,Liver,Lung,Thyroid)
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Table4EDosesfromUnit2LiquidEffluents-1stQuarter IndividualDoses AgeGroup Organ Dose QuarterlyLimit PercentofLimit Child Bone 3.60E04mrem 5.00E+00 7.20E03 Child GILLI 3.60E04mrem 5.00E+00 7.20E03 Child Kidney 3.60E04mrem 5.00E+00 7.20E03 Child Liver 3.60E04mrem 5.00E+00 7.20E03 Child Lung 3.60E04mrem 5.00E+00 7.20E03 Child Thyroid 3.60E04mrem 5.00E+00 7.20E03 Child TotalBody 3.60E04mrem 1.50E+00 2.40E02 AverageriverflowpastWBN(cubicfeetpersecond):44,582cfs PopulationDoses TotalBodyDose 3.20E02manrem MaximumOrganDose(Organ) 3.20E02manrem(Bone,GILLI,Kidney,Liver,Lung,Thyroid)
Table4FDosesfromUnit2LiquidEffluents-2ndQuarter IndividualDoses AgeGroup Organ Dose QuarterlyLimit PercentofLimit Child Bone 1.80E03mrem 5.00E+00 3.60E02 Child GILLI 1.80E03mrem 5.00E+00 3.60E02 Child Kidney 1.80E03mrem 5.00E+00 3.60E02 Child Liver 1.80E03mrem 5.00E+00 3.60E02 Child Lung 1.80E03mrem 5.00E+00 3.60E02 Child Thyroid 1.80E03mrem 5.00E+00 3.60E02 Child TotalBody 1.80E03mrem 1.50E+00 1.20E01 AverageriverflowpastWBN(cubicfeetpersecond):23,902cfs PopulationDoses TotalBodyDose 1.50E01manrem MaximumOrganDose(Organ) 1.50E01manrem(Bone,GILLI,Kidney,Liver,Lung,Thyroid)
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Table4GDosesfromUnit2LiquidEffluents-3rdQuarter IndividualDoses AgeGroup Organ Dose QuarterlyLimit PercentofLimit Child Bone 3.40E03mrem 5.00E+00 6.80E02 Child GILLI 3.40E03mrem 5.00E+00 6.80E02 Child Kidney 3.40E03mrem 5.00E+00 6.80E02 Child Liver 3.40E03mrem 5.00E+00 6.80E02 Child Lung 3.40E03mrem 5.00E+00 6.80E02 Child Thyroid 3.40E03mrem 5.00E+00 6.80E02 Child TotalBody 3.40E03mrem 1.50E+00 2.27E01 AverageriverflowpastWBN(cubicfeetpersecond):23,826cfs PopulationDoses TotalBodyDose 2.70E01manrem MaximumOrganDose(Organ) 2.70E01manrem(Bone,GILLI,Kidney,Liver,Lung,Thyroid)
Table4HDosesfromUnit2LiquidEffluents-4thQuarter IndividualDoses AgeGroup Organ Dose QuarterlyLimit PercentofLimit Child Bone 4.10E03mrem 5.00E+00 8.20E02 Adult GILLI 6.90E03mrem 5.00E+00 1.38E01 Child Kidney 3.93E03mrem 5.00E+00 7.86E02 Child Liver 3.90E03mrem 5.00E+00 7.80E02 Child Lung 3.90E03mrem 5.00E+00 7.80E02 Child Thyroid 3.90E03mrem 5.00E+00 7.80E02 Child TotalBody 3.90E03mrem 1.50E+00 2.60E02 AverageriverflowpastWBN(cubicfeetpersecond):27,974cfs PopulationDoses TotalBodyDose 3.1E01manrem MaximumOrganDose(Organ) 3.2E01manrem(Bone,GILLI)
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Table5TotalDosefromFuelCycle Dose First Quarter Second Quarter Third Quarter Fourth Quarter
TotalBodyoranyOrgan(exceptthyroid)
Totalbodyair (submersion) 1.73E02 1.36E02 2.56E01 4.74E02 Criticalorgan dose (airborne) 9.11E01 1.68E+00 1.24E+00 1.12E+00 Totalbody dose(liquid) 2.60E02 1.30E02 2.40E02 3.90E03 Maximum organdose (liquid) 2.60E02 1.30E02 2.40E02 6.90E03 Direct Radiation Dose 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Total 9.80E01 1.72E+00 1.54E+00 1.18E+00 CumulativeTotalDose(mrem) 5.42E+00 AnnualDoseLimit(mrem) 2.50E+01 PercentofLimit 2.17E+01 Thyroid
Totalbodyair (submersion) 1.73E02 1.36E02 2.56E01 4.74E02 Thyroiddose (airborne) 2.08E01 3.73E01 3.75E01 3.26E01 Totalbody dose (liquid) 2.60E02 1.30E02 2.40E02 3.90E03 Thyroiddose (liquid) 2.60E02 1.30E02 2.40E02 2.40E02 Total 2.77E01 4.13E01 6.79E01 4.01E01 CumulativeTotalDose(mrem) 1.77E+00 AnnualDoseLimit(mrem) 7.50E+01 PercentofLimit 2.36E+00
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VII. IndependentSpentFuelStorageInstallation TheTennesseeValleyAuthority(TVA)selectedtheHoltecInternationalStorageModule (HISTORM)Flood/Wind(FW)MultiPurposeCanister(MPC)StorageSystemforstorageof spentfuelattheWattsBarNuclear(WBN)PlantIndependentSpentFuelStorageInstallation (ISFSI).TheHISTORMFWMPCStorageSystemhasbeenreviewedandapprovedbythe NuclearRegulatoryCommission(NRC)andCertificateofCompliance(CoC)number1032Title 10CFR72.104,Criteriaforradioactivematerialsineffluentsanddirectradiationfroman ISFSIorMonitoredRetrievableStorageInstallation(MSRI),requiresthattheannualdose equivalenttoanyrealindividual,locatedbeyondthecontrolledarea,mustnotexceed25 millirem(mrem)tothewholebody,75mremtothethyroid,and25mremtoanyother criticalorgan,asaresultofexposuretodirectradiationfromISFSIoperations.
WBNsuccessfullyplaceditsfirstloadedHISTORMFWontheISFSIpadonOctober5, 2016.TheTVAISFSIstoragepadislocatedwithintheplantsprotectedarea.Thestoragepad isdesignedtoadequatelysupportbothstaticanddynamicloadsof80loadedHoltecHI STORMFWMPCStorageSystems.Currently,thestoragepadcontainstwentycanisters.
Theoffsitedosefornormaloperatingconditionstoarealindividualbeyondthe controlledareaboundaryislimitedby10CFR72.104(a)toamaximumof25mrem/year wholebody,75mrem/yearthyroid,and25mrem/yearforothercriticalorgans,including contributionsfromallnuclearfuelcycleoperations.Forthisreport,totalsitereleasesinclude theWBNISFSIaspartofplantoperations.Byitsdesign,therewerenoliquidorgaseous effluentsfromtheoperationoftheISFSIduring2021.
RadiologicalEnvironmentalMonitoringProgramassessmentofdirectradiationexposure bydosimetersatornearthesiteboundaryis3.5mrem/yrforonsitelocations.Asstatedin theWBNODCMandperthisreport,thedosetoamemberofthepublicinsidethe unrestrictedboundaryisthenperformed.Resultsfromonsitedosimetermeasurementand subtractingbackgroundindicatedthatthehighestdosimeterreadingattheboundaryofthe protectedareawas3mremfortheWarehouseBO/SwallofRMACagelocationAR002.
Basedontheabovemeasurementsperformedduringthisreportingperiod,itcanbe concludedthattheradiationexposureduetotheISFSI,combinedwithallotherfuelcycle operations,willnotexceedtheregulatoryrequirementsof25mrem/yearin10CFR72.104(a) and40CFRPart190.
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VIII. MeteorologicalData WBL-22-019 E56 of 77
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JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)
WATTS BAR NUCLEAR PLANT JAN 1, 2021 - MAR 31, 2021 WIND WIND SPEED(MPH)
DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.046 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.046 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.046 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.046 0.000 0.000 0.278 0.000 0.000 0.000 0.325 SW 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.046 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.046 0.046 0.093 0.325 0.000 0.000 0.000 0.510 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2157 TOTAL HOURS OF STABILITY CLASS A 11 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 11 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2157 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: WATTS BAR NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 9.51 AND 45.63 METERS WIND SPEED AND DIRECTION MEASURED AT 9.72 METER LEVEL DATE PRINTED: 2021/04/26 MEAN WIND SPEED = 8.20 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS WBL-22-019 E57 of 77
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JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)
WATTS BAR NUCLEAR PLANT JAN 1, 2021 - MAR 31, 2021 WIND WIND SPEED(MPH)
DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.046 0.000 0.139 0.000 0.000 0.000 0.185 NNE 0.000 0.000 0.000 0.000 0.185 0.278 0.000 0.000 0.000 0.464 NE 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.046 ENE 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.046 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.046 0.185 0.000 0.000 0.000 0.232 SW 0.000 0.000 0.000 0.000 0.046 0.093 0.000 0.000 0.000 0.139 WSW 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.046 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.046 0.325 0.788 0.000 0.000 0.000 1.159 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2157 TOTAL HOURS OF STABILITY CLASS B 25 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 25 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2157 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: WATTS BAR NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 9.51 AND 45.63 METERS WIND SPEED AND DIRECTION MEASURED AT 9.72 METER LEVEL DATE PRINTED: 2021/04/26 MEAN WIND SPEED = 8.34 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS WBL-22-019 E58 of 77
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JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)
WATTS BAR NUCLEAR PLANT JAN 1, 2021 - MAR 31, 2021 WIND WIND SPEED(MPH)
DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.278 0.093 0.046 0.000 0.000 0.000 0.417 NNE 0.000 0.000 0.000 0.185 0.417 0.232 0.000 0.000 0.000 0.834 NE 0.000 0.000 0.000 0.046 0.000 0.093 0.000 0.000 0.000 0.139 ENE 0.000 0.000 0.000 0.093 0.093 0.000 0.000 0.000 0.000 0.185 E 0.000 0.000 0.000 0.093 0.093 0.046 0.000 0.000 0.000 0.232 ESE 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.046 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.046 0.232 0.371 0.000 0.000 0.000 0.649 SW 0.000 0.000 0.000 0.000 0.093 0.278 0.000 0.000 0.000 0.371 WSW 0.000 0.000 0.000 0.000 0.046 0.093 0.000 0.000 0.000 0.139 W 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.046 WNW 0.000 0.000 0.000 0.046 0.000 0.185 0.000 0.000 0.000 0.232 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.093 0.000 0.000 0.000 0.093 SUBTOTAL 0.000 0.000 0.000 0.834 1.113 1.437 0.000 0.000 0.000 3.384 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2157 TOTAL HOURS OF STABILITY CLASS C 73 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 73 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2157 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: WATTS BAR NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 9.51 AND 45.63 METERS WIND SPEED AND DIRECTION MEASURED AT 9.72 METER LEVEL DATE PRINTED: 2021/04/26 MEAN WIND SPEED = 7.06 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS WBL-22-019 E59 of 77
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JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)
WATTS BAR NUCLEAR PLANT JAN 1, 2021 - MAR 31, 2021 WIND WIND SPEED(MPH)
DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 1.020 2.364 2.503 2.457 0.000 0.000 0.000 8.345 NNE 0.000 0.000 1.808 2.735 1.391 0.603 0.000 0.000 0.000 6.537 NE 0.000 0.000 2.133 3.338 1.113 0.046 0.000 0.000 0.000 6.630 ENE 0.000 0.046 1.484 1.159 0.278 0.185 0.000 0.000 0.000 3.153 E 0.000 0.000 0.742 0.278 0.000 0.046 0.000 0.000 0.000 1.066 ESE 0.000 0.046 0.371 0.232 0.000 0.000 0.000 0.000 0.000 0.649 SE 0.000 0.093 0.325 0.139 0.000 0.000 0.000 0.000 0.000 0.556 SSE 0.000 0.046 0.139 0.139 0.000 0.000 0.000 0.000 0.000 0.325 S 0.000 0.046 0.788 0.417 0.093 0.185 0.000 0.000 0.000 1.530 SSW 0.000 0.046 1.252 1.113 0.881 1.113 0.000 0.000 0.000 4.404 SW 0.000 0.093 1.530 1.762 0.510 0.417 0.000 0.000 0.000 4.312 WSW 0.000 0.000 0.742 0.974 0.510 0.185 0.000 0.000 0.000 2.411 W 0.000 0.046 0.417 0.371 0.974 0.371 0.000 0.000 0.000 2.179 WNW 0.000 0.093 0.464 0.371 0.742 0.603 0.000 0.000 0.000 2.272 NW 0.000 0.046 0.417 0.278 0.464 0.649 0.000 0.000 0.000 1.854 NNW 0.000 0.093 0.649 0.417 1.252 2.643 0.000 0.000 0.000 5.053 SUBTOTAL 0.000 0.695 14.279 16.087 10.709 9.504 0.000 0.000 0.000 51.275 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2157 TOTAL HOURS OF STABILITY CLASS D 1106 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 1106 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2157 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: WATTS BAR NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 9.51 AND 45.63 METERS WIND SPEED AND DIRECTION MEASURED AT 9.72 METER LEVEL DATE PRINTED: 2021/04/26 MEAN WIND SPEED = 5.12 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS WBL-22-019 E60 of 77
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MeteorologicalData
[59]
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)
WATTS BAR NUCLEAR PLANT JAN 1, 2021 - MAR 31, 2021 WIND WIND SPEED(MPH)
DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.649 0.603 0.742 0.093 0.000 0.000 0.000 2.086 NNE 0.000 0.000 0.649 0.417 0.185 0.000 0.000 0.000 0.000 1.252 NE 0.000 0.093 0.556 0.139 0.000 0.000 0.000 0.000 0.000 0.788 ENE 0.000 0.046 0.417 0.556 0.046 0.000 0.000 0.000 0.000 1.066 E 0.000 0.093 0.510 0.046 0.000 0.000 0.000 0.000 0.000 0.649 ESE 0.000 0.185 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.232 SE 0.000 0.232 0.232 0.046 0.000 0.000 0.000 0.000 0.000 0.510 SSE 0.000 0.278 0.232 0.232 0.093 0.000 0.000 0.000 0.000 0.834 S 0.000 0.325 0.649 0.093 0.046 0.000 0.000 0.000 0.000 1.113 SSW 0.000 0.139 1.391 1.066 0.464 0.371 0.000 0.000 0.000 3.431 SW 0.000 0.371 1.715 1.205 0.139 0.185 0.000 0.000 0.000 3.616 WSW 0.000 0.603 1.020 0.510 0.093 0.000 0.000 0.000 0.000 2.225 W 0.000 0.232 0.649 0.371 0.000 0.000 0.000 0.000 0.000 1.252 WNW 0.000 0.325 0.649 0.510 0.093 0.046 0.000 0.000 0.000 1.623 NW 0.000 0.371 0.742 0.139 0.000 0.000 0.000 0.000 0.000 1.252 NNW 0.000 0.000 0.185 0.278 0.417 0.232 0.000 0.000 0.000 1.113 SUBTOTAL 0.000 3.292 10.292 6.212 2.318 0.927 0.000 0.000 0.000 23.041 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2157 TOTAL HOURS OF STABILITY CLASS E 497 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 497 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2157 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: WATTS BAR NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 9.51 AND 45.63 METERS WIND SPEED AND DIRECTION MEASURED AT 9.72 METER LEVEL DATE PRINTED: 2021/04/26 MEAN WIND SPEED = 3.38 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS WBL-22-019 E61 of 77
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MeteorologicalData
[60]
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)
WATTS BAR NUCLEAR PLANT JAN 1, 2021 - MAR 31, 2021 WIND WIND SPEED(MPH)
DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.046 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.139 NNE 0.000 0.046 0.185 0.000 0.000 0.000 0.000 0.000 0.000 0.232 NE 0.000 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.093 ENE 0.000 0.000 0.139 0.000 0.000 0.000 0.000 0.000 0.000 0.139 E 0.000 0.000 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.093 ESE 0.000 0.093 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.139 SE 0.000 0.046 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.139 SSE 0.000 0.093 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.139 S 0.000 0.046 0.325 0.000 0.000 0.000 0.000 0.000 0.000 0.371 SSW 0.000 0.185 0.649 0.139 0.000 0.000 0.000 0.000 0.000 0.974 SW 0.000 0.556 0.649 0.046 0.000 0.000 0.000 0.000 0.000 1.252 WSW 0.000 0.742 0.927 0.046 0.000 0.000 0.000 0.000 0.000 1.715 W 0.000 1.437 0.510 0.000 0.000 0.000 0.000 0.000 0.000 1.947 WNW 0.000 0.695 0.185 0.000 0.000 0.000 0.000 0.000 0.000 0.881 NW 0.000 0.417 0.185 0.000 0.000 0.000 0.000 0.000 0.000 0.603 NNW 0.000 0.046 0.185 0.046 0.000 0.000 0.000 0.000 0.000 0.278 SUBTOTAL 0.000 4.497 4.358 0.278 0.000 0.000 0.000 0.000 0.000 9.133 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2157 TOTAL HOURS OF STABILITY CLASS F 197 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 197 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2157 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: WATTS BAR NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 9.51 AND 45.63 METERS WIND SPEED AND DIRECTION MEASURED AT 9.72 METER LEVEL DATE PRINTED: 2021/04/26 MEAN WIND SPEED = 1.67 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS WBL-22-019 E62 of 77
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MeteorologicalData
[61]
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
WATTS BAR NUCLEAR PLANT JAN 1, 2021 - MAR 31, 2021 WIND WIND SPEED(MPH)
DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.001 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.094 NNE 0.002 0.185 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.188 NE 0.002 0.093 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.188 ENE 0.003 0.046 0.232 0.000 0.000 0.000 0.000 0.000 0.000 0.282 E 0.001 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.094 ESE 0.001 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.094 SE 0.001 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.094 SSE 0.003 0.232 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.235 S 0.004 0.232 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.328 SSW 0.007 0.464 0.139 0.000 0.000 0.000 0.000 0.000 0.000 0.610 SW 0.022 1.576 0.185 0.000 0.000 0.000 0.000 0.000 0.000 1.783 WSW 0.036 2.179 0.742 0.000 0.000 0.000 0.000 0.000 0.000 2.956 W 0.031 1.994 0.556 0.000 0.000 0.000 0.000 0.000 0.000 2.581 WNW 0.014 0.927 0.232 0.000 0.000 0.000 0.000 0.000 0.000 1.173 NW 0.007 0.325 0.278 0.000 0.000 0.000 0.000 0.000 0.000 0.610 NNW 0.002 0.139 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.188 SUBTOTAL 0.139 8.623 2.735 0.000 0.000 0.000 0.000 0.000 0.000 11.497 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2157 TOTAL HOURS OF STABILITY CLASS G 248 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 248 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2157 TOTAL HOURS CALM 3 METEOROLOGICAL FACILITY: WATTS BAR NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 9.51 AND 45.63 METERS WIND SPEED AND DIRECTION MEASURED AT 9.72 METER LEVEL DATE PRINTED: 2021/04/26 MEAN WIND SPEED = 1.22 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS WBL-22-019 E63 of 77
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MeteorologicalData
[62]
JJOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)
WATTS BAR NUCLEAR PLANT APR 1, 2021 - JUN 30, 2021 WIND WIND SPEED(MPH)
DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.092 0.184 0.230 0.000 0.000 0.000 0.506 NNE 0.000 0.000 0.000 0.138 0.138 0.276 0.000 0.000 0.000 0.551 NE 0.000 0.000 0.046 0.046 0.046 0.000 0.000 0.000 0.000 0.138 ENE 0.000 0.000 0.000 0.092 0.000 0.092 0.000 0.000 0.000 0.184 E 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.046 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.092 0.000 0.000 0.000 0.000 0.092 SSE 0.000 0.000 0.000 0.000 0.092 0.000 0.000 0.000 0.000 0.092 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.138 0.276 0.000 0.000 0.000 0.414 SW 0.000 0.000 0.000 0.000 0.000 0.092 0.000 0.000 0.000 0.092 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.046 NNW 0.000 0.000 0.000 0.092 0.046 0.138 0.000 0.000 0.000 0.276 SUBTOTAL 0.000 0.000 0.046 0.460 0.735 1.195 0.000 0.000 0.000 2.436 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2176 TOTAL HOURS OF STABILITY CLASS A 53 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 53 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2176 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: WATTS BAR NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 9.51 AND 45.63 METERS WIND SPEED AND DIRECTION MEASURED AT 9.72 METER LEVEL DATE PRINTED: 2021/07/23 MEAN WIND SPEED = 7.70 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS WBL-22-019 E64 of 77
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[63]
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)
WATTS BAR NUCLEAR PLANT APR 1, 2021 - JUN 30, 2021 WIND WIND SPEED(MPH)
DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.046 0.230 0.414 0.230 0.000 0.000 0.000 0.919 NNE 0.000 0.000 0.092 0.322 0.230 0.092 0.000 0.000 0.000 0.735 NE 0.000 0.000 0.000 0.138 0.000 0.092 0.000 0.000 0.000 0.230 ENE 0.000 0.000 0.138 0.046 0.000 0.000 0.000 0.000 0.000 0.184 E 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.046 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.046 0.092 0.000 0.000 0.000 0.000 0.138 S 0.000 0.000 0.000 0.138 0.000 0.000 0.000 0.000 0.000 0.138 SSW 0.000 0.000 0.000 0.414 0.368 0.414 0.000 0.000 0.000 1.195 SW 0.000 0.000 0.000 0.322 0.184 0.184 0.000 0.000 0.000 0.689 WSW 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.046 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.092 NNW 0.000 0.000 0.092 0.092 0.046 0.184 0.000 0.000 0.000 0.414 SUBTOTAL 0.000 0.000 0.460 1.838 1.333 1.195 0.000 0.000 0.000 4.825 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2176 TOTAL HOURS OF STABILITY CLASS B 105 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 105 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2176 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: WATTS BAR NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 9.51 AND 45.63 METERS WIND SPEED AND DIRECTION MEASURED AT 9.72 METER LEVEL DATE PRINTED: 2021/07/23 MEAN WIND SPEED = 6.07 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS WBL-22-019 E65 of 77
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MeteorologicalData
[64]
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)
WATTS BAR NUCLEAR PLANT APR 1, 2021 - JUN 30, 2021 WIND WIND SPEED(MPH)
DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.092 0.368 0.184 0.368 0.000 0.000 0.000 1.011 NNE 0.000 0.000 0.046 0.230 0.046 0.138 0.000 0.000 0.000 0.460 NE 0.000 0.000 0.000 0.184 0.000 0.000 0.000 0.000 0.000 0.184 ENE 0.000 0.000 0.046 0.092 0.000 0.000 0.000 0.000 0.000 0.138 E 0.000 0.000 0.000 0.138 0.000 0.000 0.000 0.000 0.000 0.138 ESE 0.000 0.000 0.138 0.046 0.000 0.000 0.000 0.000 0.000 0.184 SE 0.000 0.000 0.046 0.046 0.046 0.000 0.000 0.000 0.000 0.138 SSE 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.046 S 0.000 0.000 0.046 0.368 0.230 0.000 0.000 0.000 0.000 0.643 SSW 0.000 0.000 0.046 0.506 0.322 0.230 0.000 0.000 0.000 1.103 SW 0.000 0.000 0.000 0.506 0.276 0.138 0.000 0.000 0.000 0.919 WSW 0.000 0.000 0.000 0.138 0.000 0.000 0.000 0.000 0.000 0.138 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.046 NW 0.000 0.000 0.092 0.000 0.000 0.184 0.000 0.000 0.000 0.276 NNW 0.000 0.000 0.000 0.046 0.092 0.092 0.046 0.000 0.000 0.276 SUBTOTAL 0.000 0.000 0.597 2.711 1.195 1.149 0.046 0.000 0.000 5.699 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2176 TOTAL HOURS OF STABILITY CLASS C 124 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 124 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2176 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: WATTS BAR NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 9.51 AND 45.63 METERS WIND SPEED AND DIRECTION MEASURED AT 9.72 METER LEVEL DATE PRINTED: 2021/07/23 MEAN WIND SPEED = 5.74 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS WBL-22-019 E66 of 77
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MeteorologicalData
[65]
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)
WATTS BAR NUCLEAR PLANT APR 1, 2021 - JUN 30, 2021 WIND WIND SPEED(MPH)
DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.460 1.425 1.379 1.149 0.000 0.000 0.000 4.412 NNE 0.000 0.000 1.011 0.873 0.322 0.138 0.000 0.000 0.000 2.344 NE 0.000 0.000 0.230 0.460 0.138 0.000 0.000 0.000 0.000 0.827 ENE 0.000 0.000 0.597 0.322 0.184 0.046 0.000 0.000 0.000 1.149 E 0.000 0.092 0.460 0.276 0.046 0.000 0.000 0.000 0.000 0.873 ESE 0.000 0.092 0.184 0.276 0.092 0.000 0.000 0.000 0.000 0.643 SE 0.000 0.230 0.322 0.368 0.000 0.000 0.000 0.000 0.000 0.919 SSE 0.000 0.322 0.460 0.551 0.092 0.046 0.000 0.000 0.000 1.471 S 0.000 0.276 1.241 1.241 0.368 0.138 0.000 0.000 0.000 3.263 SSW 0.000 0.046 2.206 3.263 1.792 0.873 0.046 0.000 0.000 8.226 SW 0.000 0.092 1.471 1.884 0.460 0.276 0.000 0.000 0.000 4.182 WSW 0.000 0.092 0.414 0.184 0.138 0.092 0.000 0.000 0.000 0.919 W 0.000 0.000 0.184 0.138 0.046 0.000 0.000 0.000 0.000 0.368 WNW 0.000 0.092 0.230 0.276 0.322 0.184 0.000 0.000 0.000 1.103 NW 0.000 0.092 0.138 0.184 0.506 0.689 0.000 0.000 0.000 1.608 NNW 0.000 0.046 0.322 0.689 0.368 1.195 0.000 0.000 0.000 2.619 SUBTOTAL 0.000 1.471 9.926 12.408 6.250 4.825 0.046 0.000 0.000 34.926 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2176 TOTAL HOURS OF STABILITY CLASS D 760 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 760 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2176 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: WATTS BAR NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 9.51 AND 45.63 METERS WIND SPEED AND DIRECTION MEASURED AT 9.72 METER LEVEL DATE PRINTED: 2021/07/23 MEAN WIND SPEED = 4.72 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS WBL-22-019 E67 of 77
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[66]
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)
WATTS BAR NUCLEAR PLANT APR 1, 2021 - JUN 30, 2021 WIND WIND SPEED(MPH)
DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.046 0.551 0.322 0.368 0.230 0.000 0.000 0.000 1.517 NNE 0.000 0.046 0.322 0.092 0.000 0.000 0.000 0.000 0.000 0.460 NE 0.000 0.046 0.368 0.046 0.000 0.000 0.000 0.000 0.000 0.460 ENE 0.000 0.092 0.506 0.092 0.046 0.046 0.000 0.000 0.000 0.781 E 0.000 0.092 0.230 0.184 0.000 0.000 0.000 0.000 0.000 0.506 ESE 0.000 0.092 0.092 0.000 0.000 0.000 0.000 0.000 0.000 0.184 SE 0.000 0.046 0.092 0.000 0.000 0.000 0.000 0.000 0.000 0.138 SSE 0.000 0.322 0.230 0.138 0.046 0.000 0.000 0.000 0.000 0.735 S 0.000 0.689 1.057 0.276 0.046 0.000 0.000 0.000 0.000 2.068 SSW 0.000 0.689 2.160 0.873 0.368 0.184 0.000 0.000 0.000 4.274 SW 0.000 0.506 2.022 0.460 0.000 0.000 0.000 0.000 0.000 2.987 WSW 0.000 0.322 1.149 0.046 0.046 0.000 0.000 0.000 0.000 1.563 W 0.000 0.460 0.597 0.230 0.092 0.000 0.000 0.000 0.000 1.379 WNW 0.000 0.230 0.230 0.276 0.000 0.000 0.000 0.000 0.000 0.735 NW 0.000 0.138 0.551 0.322 0.046 0.046 0.000 0.000 0.000 1.103 NNW 0.000 0.046 0.506 0.460 0.322 0.138 0.000 0.000 0.000 1.471 SUBTOTAL 0.000 3.860 10.662 3.814 1.379 0.643 0.000 0.000 0.000 20.358 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2176 TOTAL HOURS OF STABILITY CLASS E 443 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 443 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2176 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: WATTS BAR NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 9.51 AND 45.63 METERS WIND SPEED AND DIRECTION MEASURED AT 9.72 METER LEVEL DATE PRINTED: 2021/07/23 MEAN WIND SPEED = 2.93 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS WBL-22-019 E68 of 77
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MeteorologicalData
[67]
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)
WATTS BAR NUCLEAR PLANT APR 1, 2021 - JUN 30, 2021 WIND WIND SPEED(MPH)
DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.001 0.000 0.230 0.000 0.000 0.000 0.000 0.000 0.000 0.231 NNE 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.046 NE 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.046 ENE 0.001 0.092 0.092 0.000 0.000 0.000 0.000 0.000 0.000 0.184 E 0.001 0.138 0.276 0.046 0.000 0.000 0.000 0.000 0.000 0.461 ESE 0.001 0.184 0.092 0.000 0.000 0.000 0.000 0.000 0.000 0.277 SE 0.001 0.138 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.230 SSE 0.001 0.138 0.138 0.000 0.000 0.000 0.000 0.000 0.000 0.277 S 0.002 0.322 0.276 0.000 0.000 0.000 0.000 0.000 0.000 0.599 SSW 0.004 0.551 0.735 0.046 0.000 0.046 0.000 0.000 0.000 1.383 SW 0.010 1.517 1.471 0.000 0.000 0.000 0.000 0.000 0.000 2.997 WSW 0.009 1.746 0.873 0.046 0.000 0.000 0.000 0.000 0.000 2.674 W 0.009 1.884 1.011 0.000 0.000 0.000 0.000 0.000 0.000 2.905 WNW 0.004 0.597 0.643 0.046 0.000 0.000 0.000 0.000 0.000 1.291 NW 0.002 0.414 0.230 0.000 0.000 0.000 0.000 0.000 0.000 0.645 NNW 0.001 0.138 0.138 0.138 0.000 0.000 0.000 0.000 0.000 0.414 SUBTOTAL 0.046 7.858 6.296 0.414 0.000 0.046 0.000 0.000 0.000 14.660 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2176 TOTAL HOURS OF STABILITY CLASS F 319 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 319 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2176 TOTAL HOURS CALM 1 METEOROLOGICAL FACILITY: WATTS BAR NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 9.51 AND 45.63 METERS WIND SPEED AND DIRECTION MEASURED AT 9.72 METER LEVEL DATE PRINTED: 2021/07/23 MEAN WIND SPEED = 1.58 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS WBL-22-019 E69 of 77
WattsBarNuclearPowerPlant Units1and2 2021AnnualRadioactiveEffluentReleaseReport
MeteorologicalData
[68]
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
WATTS BAR NUCLEAR PLANT APR 1, 2021 - JUN 30, 2021 WIND WIND SPEED(MPH)
DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 NE 0.000 0.092 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.092 ENE 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 E 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 ESE 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.046 SE 0.000 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.092 SSE 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 S 0.001 0.230 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.230 SSW 0.002 0.781 0.092 0.000 0.000 0.000 0.000 0.000 0.000 0.876 SW 0.010 3.355 0.414 0.000 0.000 0.000 0.000 0.000 0.000 3.779 WSW 0.016 5.101 0.827 0.000 0.000 0.000 0.000 0.000 0.000 5.944 W 0.009 3.079 0.414 0.000 0.000 0.000 0.000 0.000 0.000 3.502 WNW 0.004 1.057 0.460 0.000 0.000 0.000 0.000 0.000 0.000 1.521 NW 0.002 0.276 0.414 0.000 0.000 0.000 0.000 0.000 0.000 0.691 NNW 0.000 0.138 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.138 SUBTOTAL 0.046 14.338 2.711 0.000 0.000 0.000 0.000 0.000 0.000 17.096 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2176 TOTAL HOURS OF STABILITY CLASS G 372 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 372 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2176 TOTAL HOURS CALM 1 METEOROLOGICAL FACILITY: WATTS BAR NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 9.51 AND 45.63 METERS WIND SPEED AND DIRECTION MEASURED AT 9.72 METER LEVEL DATE PRINTED: 2021/07/23 MEAN WIND SPEED = 1.20 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS WBL-22-019 E70 of 77
WattsBarNuclearPowerPlant Units1and2 2021AnnualRadioactiveEffluentReleaseReport
MeteorologicalData
[69]
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)
WATTS BAR NUCLEAR PLANT OCT 1, 2021 - DEC 31, 2021 WIND WIND SPEED(MPH)
DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.045 NNE 0.000 0.000 0.045 0.045 0.182 0.000 0.000 0.000 0.000 0.272 NE 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.045 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.045 0.000 0.182 0.227 0.000 0.000 0.000 0.454 SW 0.000 0.000 0.000 0.000 0.000 0.136 0.000 0.000 0.000 0.136 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.091 0.000 0.000 0.000 0.091 SUBTOTAL 0.000 0.000 0.091 0.045 0.409 0.500 0.000 0.000 0.000 1.045 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS A 23 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 23 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: WATTS BAR NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 9.51 AND 45.63 METERS WIND SPEED AND DIRECTION MEASURED AT 9.72 METER LEVEL DATE PRINTED: 2022/01/14 MEAN WIND SPEED = 7.28 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS WBL-22-019 E71 of 77
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MeteorologicalData
[70]
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)
WATTS BAR NUCLEAR PLANT OCT 1, 2021 - DEC 31, 2021 WIND WIND SPEED(MPH)
DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.091 0.182 0.000 0.000 0.000 0.000 0.272 NNE 0.000 0.000 0.000 0.182 0.091 0.091 0.000 0.000 0.000 0.363 NE 0.000 0.000 0.000 0.000 0.091 0.000 0.000 0.000 0.000 0.091 ENE 0.000 0.000 0.045 0.045 0.091 0.000 0.000 0.000 0.000 0.182 E 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.045 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S 0.000 0.000 0.000 0.045 0.045 0.045 0.000 0.000 0.000 0.136 SSW 0.000 0.000 0.000 0.182 0.545 0.227 0.000 0.000 0.000 0.954 SW 0.000 0.000 0.000 0.000 0.136 0.045 0.000 0.000 0.000 0.182 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.045 0.000 0.045 0.091 0.000 0.000 0.000 0.182 SUBTOTAL 0.000 0.000 0.136 0.545 1.226 0.500 0.000 0.000 0.000 2.407 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS B 53 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 53 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: WATTS BAR NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 9.51 AND 45.63 METERS WIND SPEED AND DIRECTION MEASURED AT 9.72 METER LEVEL DATE PRINTED: 2022/01/14 MEAN WIND SPEED = 6.38 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS WBL-22-019 E72 of 77
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MeteorologicalData
[71]
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)
WATTS BAR NUCLEAR PLANT OCT 1, 2021 - DEC 31, 2021 WIND WIND SPEED(MPH)
DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.091 0.136 0.182 0.091 0.000 0.000 0.000 0.500 NNE 0.000 0.000 0.000 0.136 0.182 0.136 0.000 0.000 0.000 0.454 NE 0.000 0.000 0.045 0.091 0.045 0.000 0.000 0.000 0.000 0.182 ENE 0.000 0.000 0.000 0.136 0.000 0.000 0.000 0.000 0.000 0.136 E 0.000 0.000 0.091 0.091 0.000 0.000 0.000 0.000 0.000 0.182 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.045 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S 0.000 0.000 0.000 0.091 0.045 0.000 0.000 0.000 0.000 0.136 SSW 0.000 0.000 0.136 0.636 0.091 0.182 0.000 0.000 0.000 1.045 SW 0.000 0.000 0.045 0.363 0.045 0.045 0.000 0.000 0.000 0.500 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.045 NNW 0.000 0.000 0.000 0.000 0.182 0.136 0.000 0.000 0.000 0.318 SUBTOTAL 0.000 0.000 0.454 1.726 0.772 0.590 0.000 0.000 0.000 3.542 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS C 78 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 78 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: WATTS BAR NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 9.51 AND 45.63 METERS WIND SPEED AND DIRECTION MEASURED AT 9.72 METER LEVEL DATE PRINTED: 2022/01/14 MEAN WIND SPEED = 5.36 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS WBL-22-019 E73 of 77
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MeteorologicalData
[72]
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)
WATTS BAR NUCLEAR PLANT OCT 1, 2021 - DEC 31, 2021 WIND WIND SPEED(MPH)
DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.636 0.545 1.272 1.453 0.000 0.000 0.000 3.906 NNE 0.000 0.000 0.863 0.817 0.363 0.091 0.000 0.000 0.000 2.134 NE 0.000 0.091 0.454 0.999 0.363 0.000 0.000 0.000 0.000 1.907 ENE 0.000 0.091 0.863 0.999 0.182 0.000 0.000 0.000 0.000 2.134 E 0.000 0.045 0.727 0.136 0.000 0.000 0.000 0.000 0.000 0.908 ESE 0.000 0.000 0.545 0.091 0.000 0.000 0.000 0.000 0.000 0.636 SE 0.000 0.045 0.409 0.045 0.045 0.000 0.000 0.000 0.000 0.545 SSE 0.000 0.091 0.590 0.136 0.000 0.000 0.000 0.000 0.000 0.817 S 0.000 0.091 0.772 0.772 0.318 0.182 0.000 0.000 0.000 2.134 SSW 0.000 0.091 1.953 3.224 1.544 1.045 0.000 0.000 0.000 7.856 SW 0.000 0.182 1.045 1.544 0.136 0.045 0.000 0.000 0.000 2.952 WSW 0.000 0.227 1.090 0.227 0.000 0.000 0.000 0.000 0.000 1.544 W 0.000 0.000 0.272 0.045 0.045 0.000 0.000 0.000 0.000 0.363 WNW 0.000 0.091 0.590 0.182 0.182 0.000 0.000 0.000 0.000 1.045 NW 0.000 0.000 0.454 0.363 0.454 0.272 0.045 0.000 0.000 1.589 NNW 0.000 0.000 0.454 0.182 0.636 1.090 0.000 0.000 0.000 2.361 SUBTOTAL 0.000 1.045 11.717 10.309 5.540 4.178 0.045 0.000 0.000 32.834 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS D 723 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 723 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: WATTS BAR NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 9.51 AND 45.63 METERS WIND SPEED AND DIRECTION MEASURED AT 9.72 METER LEVEL DATE PRINTED: 2022/01/14 MEAN WIND SPEED = 4.52 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS WBL-22-019 E74 of 77
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MeteorologicalData
[73]
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)
WATTS BAR NUCLEAR PLANT OCT 1, 2021 - DEC 31, 2021 WIND WIND SPEED(MPH)
DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.045 0.500 0.363 0.227 0.136 0.000 0.000 0.000 1.272 NNE 0.000 0.045 0.500 0.272 0.000 0.000 0.000 0.000 0.000 0.817 NE 0.000 0.136 0.817 0.272 0.000 0.000 0.000 0.000 0.000 1.226 ENE 0.000 0.136 0.500 0.409 0.000 0.000 0.000 0.000 0.000 1.045 E 0.000 0.045 0.363 0.045 0.000 0.000 0.000 0.000 0.000 0.454 ESE 0.000 0.091 0.091 0.045 0.000 0.000 0.000 0.000 0.000 0.227 SE 0.000 0.136 0.091 0.045 0.000 0.000 0.000 0.000 0.000 0.272 SSE 0.000 0.409 0.590 0.000 0.000 0.000 0.000 0.000 0.000 0.999 S 0.000 0.363 1.090 0.272 0.045 0.000 0.000 0.000 0.000 1.771 SSW 0.000 0.500 2.271 1.726 1.272 0.727 0.000 0.000 0.000 6.494 SW 0.000 0.863 1.817 0.409 0.182 0.000 0.000 0.000 0.000 3.270 WSW 0.000 1.090 1.408 0.136 0.045 0.000 0.000 0.000 0.000 2.679 W 0.000 0.817 1.045 0.227 0.000 0.000 0.000 0.000 0.000 2.089 WNW 0.000 0.817 0.681 0.318 0.045 0.045 0.000 0.000 0.000 1.907 NW 0.000 0.636 0.363 0.363 0.091 0.045 0.000 0.000 0.000 1.499 NNW 0.000 0.227 0.545 0.363 0.681 0.136 0.000 0.000 0.000 1.953 SUBTOTAL 0.000 6.358 12.670 5.268 2.589 1.090 0.000 0.000 0.000 27.975 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS E 616 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 616 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: WATTS BAR NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 9.51 AND 45.63 METERS WIND SPEED AND DIRECTION MEASURED AT 9.72 METER LEVEL DATE PRINTED: 2022/01/14 MEAN WIND SPEED = 3.00 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS WBL-22-019 E75 of 77
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MeteorologicalData
[74]
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)
WATTS BAR NUCLEAR PLANT OCT 1, 2021 - DEC 31, 2021 WIND WIND SPEED(MPH)
DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.002 0.136 0.136 0.000 0.000 0.000 0.000 0.000 0.000 0.274 NNE 0.001 0.045 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.137 NE 0.001 0.091 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.183 ENE 0.002 0.045 0.363 0.045 0.000 0.000 0.000 0.000 0.000 0.457 E 0.001 0.000 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.091 ESE 0.001 0.091 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.137 SE 0.001 0.000 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.091 SSE 0.001 0.045 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.137 S 0.003 0.227 0.272 0.000 0.000 0.000 0.000 0.000 0.000 0.502 SSW 0.010 0.500 1.181 0.091 0.000 0.000 0.000 0.000 0.000 1.781 SW 0.009 0.863 0.636 0.045 0.000 0.000 0.000 0.000 0.000 1.553 WSW 0.014 1.680 0.636 0.000 0.000 0.000 0.000 0.000 0.000 2.330 W 0.017 2.225 0.590 0.000 0.000 0.000 0.000 0.000 0.000 2.832 WNW 0.018 2.634 0.500 0.000 0.000 0.000 0.000 0.000 0.000 3.152 NW 0.008 0.954 0.409 0.000 0.000 0.000 0.000 0.000 0.000 1.370 NNW 0.004 0.272 0.363 0.000 0.000 0.000 0.000 0.000 0.000 0.640 SUBTOTAL 0.091 9.809 5.586 0.182 0.000 0.000 0.000 0.000 0.000 15.668 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS F 345 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 345 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 2 METEOROLOGICAL FACILITY: WATTS BAR NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 9.51 AND 45.63 METERS WIND SPEED AND DIRECTION MEASURED AT 9.72 METER LEVEL DATE PRINTED: 2022/01/14 MEAN WIND SPEED = 1.44 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS WBL-22-019 E76 of 77
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MeteorologicalData
[75]
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
WATTS BAR NUCLEAR PLANT OCT 1, 2021 - DEC 31, 2021 WIND WIND SPEED(MPH)
DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 NE 0.002 0.136 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.183 ENE 0.002 0.045 0.136 0.000 0.000 0.000 0.000 0.000 0.000 0.183 E 0.001 0.045 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.137 ESE 0.001 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.092 SE 0.001 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.092 SSE 0.002 0.227 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.229 S 0.002 0.182 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.229 SSW 0.006 0.545 0.182 0.000 0.000 0.000 0.000 0.000 0.000 0.733 SW 0.020 1.953 0.454 0.000 0.000 0.000 0.000 0.000 0.000 2.427 WSW 0.032 3.043 0.817 0.000 0.000 0.000 0.000 0.000 0.000 3.892 W 0.031 3.179 0.545 0.000 0.000 0.000 0.000 0.000 0.000 3.755 WNW 0.023 2.316 0.454 0.000 0.000 0.000 0.000 0.000 0.000 2.793 NW 0.010 0.863 0.363 0.000 0.000 0.000 0.000 0.000 0.000 1.236 NNW 0.004 0.409 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.504 SUBTOTAL 0.136 13.170 3.224 0.000 0.000 0.000 0.000 0.000 0.000 16.530 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS G 364 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 364 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 3 METEOROLOGICAL FACILITY: WATTS BAR NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 9.51 AND 45.63 METERS WIND SPEED AND DIRECTION MEASURED AT 9.72 METER LEVEL DATE PRINTED: 2022/01/14 MEAN WIND SPEED = 1.19 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS WBL-22-019 E77 of 77