ML17055B754

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Forwards Rev 1 to Offsite Dose Calculation Manual,Per 860502 Request.Sections Containing Equations & Methodology Significantly Expanded to Clarify Source of Equations. Franklin Research Ctr Comments Also Encl
ML17055B754
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 06/05/1986
From: MANGAN C V
NIAGARA MOHAWK POWER CORP.
To: ADENSAM E G
Office of Nuclear Reactor Regulation
Shared Package
ML17055B756 List:
References
(NMP2L-0733), (NMP2L-733), NUDOCS 8606110212
Download: ML17055B754 (30)


Text

REQUL45gRY INFORNATIQN

-DISTRIBUT~

SYSTEl'f.

(RIDS>'IACCESSION NBR:8606110212 DOC.DATE:86/06/05NOTARIZED:

YESDOCKET¹FACIL:50-410NineNilePointNuclearStation~Unit2~NiagaraNoha05000410AUTH.NAIVEAUTHORAFFILIATION MANQAN,Q.V.NiagaraNohatokPoeerCorp.RECIP.MANERECIPIENT AFFILIATION ADENSANpE".Q.BARProspectDirectoYate3

SUBJECT:

ForwardsRev1tooFFsitedosecalculation manual>'per 860502request.Sectionscontaining equations 5methodology signiFicantlg expandedtoclariFgsourceoFequations.

FranklinResearchCtrcommentsalsoencl.DISTRIBUTION CEDE:*GCBDCDPIEBRECEIVED:

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).t'(;(%>,>',NJ.(~(~)S~i*h~a(.iQQj@AT~gt"(4:2thilil~(,')Y(>('3),4:i UM'QHAWK0NIAGARAMOHAWKPOWERCORPORATION/300 ERIEBOULEVARD WEST,SYRACUSE, N.Y.13202/TELEPHONE (315)474-1511June5,1986(NMP2L0733)Ms.ElinorG.Adensam,DirectorBWRProjectDirectorate No.3U.S.NuclearRegulatory Commission 7920NorfolkAvenueWashington, DC20555

DearMs.Adensam:

Re:NineMilePointUnit2DocketNo;50-410ITheenclosedRevision1totheNineMilePointNuclearStationUnit2OffsiteDoseCalculation Manual(ODCM)issubmitted inresponsetoyourrequestofMay2,1986.Thegeneralrequirements oftheRequestforAdditional Information aswellasthespecificcommentsprovidedbyFranklinResearchCenterhavebeenaddressed inrevision1oftheOffsiteDoseCalculation Manual,assummarized belowandintheattachment tothisletter.Theseventeen specificreferences totheTechnical Specifications listedinparagraph 2oftheRequestforAdditional Information havebeenincludedasacross-reference intheTableofContents.

Specificreferences totheTechnical Specifications arealsoincludedwithineachsection.Thesectionscontaining equations andmethodology havebeensignificantly expandedtoclarifythesourceoftheequations, andexamplesaregivenformanyofthem.Thereferenced tables,Table2.1forliquideffluentmonitorsandTable3.1foroffgas,havebeenprovidedasrepresentative values.Sections2.1.3,forliquidmonitorsand3.1.3,forgaseousmonitors, havebeenprovidedtodiscussperiodiccalibration toconfirmthesevalues.Section6hasbeenaddedtoprovidethediscussion ofseveraltablenotations whichresultedfromthedevelopment oftheEnvironmental Monitoring Programspecifications.

Figure5.1.3-1oftheTechnical specifications hasbeenprovidedinadditiontothemapsshowingenvrionmental samplinglocations.

8606il02i2 860605~IPDRADOCK05000@i'0"'

PDR Ch'rrllIIIE'f004IN Ms.ElinorG.AdensamPage2Attachment 1ofthisletterisanitem-by-item responsetothecommentsprovidedbyFranklinResearchCenter.Additional information andfurtherclarification hasbeenprovidedtoproduceacompleteandcomprehensive OffsiteDoseCalculation Manual.Yourfurthersuggestions forimprovements willreceiveourimmediate attention.

Verytrulyyours,C.V.ManganSeniorVicePresident NLR:saaEnclosure 1684Gxc:R.A.Gramm,NRCResidentInspector ProjectFile(2)

~+l UNITEDSTATESOFAMERICANUCLEARREGULATORY COMMISSION IntheMatterofNiagaraMohawkPowerCorporation

)(NineMilePointUnit2))DocketNo.50-410AFFIDAVIT C.V.Manan,beingdulysworn,statesthatheisSeniorVicePresident ofNiagaraMohawkPowerCorporation; thatheisauthorized onthepartofsaidCorporation tosignandfilewiththeNuclearRegulatory Commission thedocuments attachedhereto;andthatallsuchdocuments aretrueandcorrecttothebestofhisknowledge, information andbelief.Subscribed andsworntobeforeme,aNotaryublicinandfortheStateofNewYorkandCountyof'thisdayof1986.NotaryPublicinandforlinen'ounty,NewYorkMyCommission expires:CHRISTINE AUSTINNotaryPublicintheQateofNeoYorituaiihedinOnondagaCo.No.478768gEx<<eaMarch30,lou JIFNf8uA3wrgy,HOAOV%~Af0+SANQ1<<p'<>ggg

~gg)~8"KN~4N.03ddt}Ag<9g~4~>>,Q+~lAE4uf"40K'/K'vgQii~<fi93 gf ATTACHMENT 1FranklinResearchCenterODCMComments(Unit2)~Sub'ectTableofContentsLiquidRadwasteEffluentMonitorAlarmSetpoint(Sec.2.1.2.1)Rev.0PaeNumber1,2Rev.0Comments'heLicenseeshouldprovideatableofcontentsfortheODCM.TheLicenseeshouldspecifytheunitsforthealarmsetpoints.

'ntheequationforthesetpoint, thefactorkisnotclearlydefined.TheLicenseemayapplythelaboratory experience tointroduce anappropriate safetyfactorforthesetpointcalculation:

thefactorshouldbeaspecificnumber.'heLicenseeshouldprovidenominalflowratesfortheeffluentline(f)andthedilutionflow(F).Also,thesourcesofdilutionwatershouldbeidentified.

Rev.1~PIIbRev.1~ResonseAtableofcontentshasbeenprovided.

Theunits(cpm)aregiveninSection2.1.2.1.Thefactorhasbeensetat0.8inSection2.1.2.1Thenominalflowratesare7providedinSection2.1.3.1.ServiceWaterAandBandCoolingTowerBlowdownRadiation DetectorAlarmSetpoint(Sec.2.1.2.2)'ameasabove,specifytheunitsforalarmsetpoint.

Theunits(cpm)aregiven5inSection2.1.2.3.

0

~Sub'ectRev.0PaeNumberRev.0CommentsRev.1~ResenseRev.1PaeNumberServiceHaterAand8andCoolingTowerBlowdownRadiation DetectorAlarmSetpoint(Sec.2.1.2.2)'ameasabove,specifythefactork.SpecifythenominalflowratesforservicewaterAand8,andthecoolingtowerblowdown.

'heLicenseehasnotconsidered thesimultaneous releasesfrommorethanoneeffluentlineinthesetpointcalculation.

Thefactorhsbeensetat50.8inSection2.1.2.3.Thenominalflowratesare10providedinSection2.1.3.2.Provision forsettingRadwasteMonitorsetpointconcurrent withcontamination ofadilutionstreamareprovidedinSection2.1.2.2.LiquidEffluentDetectors Responses (Table2-1)'tisnotcleartowhattypesofradiation (gamma,beta,orboth)thedetectorresponses providedinTable2-1arerelated.LiquidEffluentDetector6discussion providesthisinfo.inSection2.1.3.1'hatisthejustification forconsidering onlytheisotopeslistedinthetables?Areotherisotopesignored?Responseofthedetector6toliquidsamplesfromappropriate wastestreamsisdescribed inSection2.1.3.1.LiquidConcentration

'odemonstrate thattheLicensee's Technical Specification 3.11.1.1ismet,thesurveillance requirements specifythatthesamplingandanalysisprogrambeimplemented according toTable4.11-1oftheRETS.According totheNRCBranchTechnical

Position, theLicenseeshould:LiquidEffluentConcentration willbecalculated andcomparedtoMPCinaccordance withtheequationofSection2.2foralleffluentstreamsforallperiodsofrelease.Thissummation willtherefore accountforcombineddischarges tothesamereleasepoint.12

~SubectRev.0PaeNumberRev.0CommentsRev.1~ResouseRev.1~PNbLiquidEffluentDoseDoseCalculation Methodology (Sec.2.2)"Providetheequations andmethodology tobeusedatthestationorunitforeachliquidreleasepointaccording totheSpecification 3.11.1.1.

Forsystemswithcontinuous orbatchreleases, andforsystemsdesignedtomonitorandcontrolbothcontinuous andbatchreleases, providetheassumptions andparameters tobeusedtocomparetheoutputofthemonitorwiththeliquidconcentration specified.

Statethelimitations forcombineddischarges tothesamereleasepoint.Inaddition, providethemethodandassumptions forobtaining representative samplesfromeachbatchanddescribethepreviouspost-release analysesorcomposite sampleanalysesusedtomeetthespecification."

Liquidpathwaysarenotclearlyidentified forthedosecalculation.

Section2.5addresses samplerepresentativeness.

Theresultsofsamplingandanalysisinaccordance withTable4.11-1providetheconcentration datausedinSection2.2.Allefflluents aredischarged viathesamepathway.Seefigure2-9andSection2.3fordiscussion ofthedosepathwaystobeincludedindosecalculation.

1528,13

~SubectRev.0PaeNumberRev.0Comments'quations forthedosefactorA;tshouldbeprovidedintheODCM.Rev.1~ResouseSection2.4providestheequationfromNUREG0133Section4.3.1whichwasreferenced inRev.0.Rev.1~PIII14Table2-2StackNobleGasDetectorAlarmSetpoint(Sec.3.1.2.1)TheLicenseeshouldexplainwhythetableprovidesdataonlyfortheisotopeslisted.'nitsforthealarmsetpointnotspecified.

Section2.4explainswhyonlytheisotopeslistedwereprovidedanddescribes theactiontobetakenifnuclidesareencountered inadditiontothoseprovidedinTable2-2.Theunits(uCi/sec) aregiveninSection3.1.2.1.1530'hefactorkusedforthesetpointequationisnotdefinedorspecified.

Thefactorhasbeensetat310.8inSection3.1.2.1.Hhatistheheightofthestackandthelevelofeffluentreleases(elevated vs.groundlevel)?Theelevatedreleasesdischarged fromthestack(8131meters)arediscussed inSection3.1.3.33VentNobelGasDetectorSetpoint(Sec.3.1.2.2)'amecommentsasstatedforstackmonitorabove.Theunits(uCi/sec) aregiveninSection3.1.2.2.31Thefactorhasbeenset31at0.8inSection3.1.2.2.

~sub'eccRev.0PaeNumberRev.0CommentsRev.1~ResonseTheventisconsidered agroundlevelorcombinedelevated/ground levelrelease,asdiscussed inSections3.1.3,3.4.5and3.4.6.Rev.1~PNN33,58,59'imultaneous releasesnotconsidered inthesetpointcalculation.

Section3.1.3includesa33discussion ofsimultaneous release.VentNobleGasDetectorSetpoint(Sec.3.1.2.2)OffgasPretreatment NobleGasDetectorSetpoint(Sec.3.1.2.3)'heresulting unitforthesetpointequationisnotconsistent withwhatitisintendedfor:theendresultwillread"(m3/cc)(cpm)"ratherthanjust"(cpm)".'heLicenseehasnotbeenconsistent inchoosingtheunitsfortheflowrates:(m3/sec)wasusedinSec.3.1.2.2and(cc/min)wasusedinSec.3.1.2.3.TheequationgiveninSection3.1.2.2yieldsuCi/sec,asrequired.

TheunitsofSections3.1~2.2and3.1.2.3arenowgiveninml/secandCFM,corresponding tothetwoseparatesystems.Itisnotdesirable tomakethesethesame.3131,32NobelGasDetectorResponse(Table3-1)'pecifythetypesofradiation (gammaorbeta)forthedetectorresponses.

Theoff-gasmonitordetectorisdescribed inSection3.1.3.336'rovidejustifications forhavingonlyafewisotopesforthetable.Section3.1.3.3describes 36OGMonitorcalibration andaddresses Tablerevisionbasedonisotopicanalysisofoffgassamplesduringoperation.

~Sub'ctRev.0PaeNumberRev.0CommentsRev.1~ResenseRev.1PaeNumberDoseRateCalculation Methodology (Sec.3.2)1012'heLicenseehasnotreferenced thedoselimitswithwhichcompliance istobedemonstrated forthedosecalculations.

'heLicenseeuses1.7E-06(sec/m3)forthehighestcalculated annual(X/Q),whichislowerthan2.0E-06(sec/m3)providedbytheLicenseeinSection3.1.2.2(p.7).Explainthediscrepancy.

Section3.2identifies the37DoseRatelimitswhichapply.ChangedX/Qto2.0E-6in38,39,Sections3.2.1and3.2.2to31beconsistent withvalueusedforsettingalarmpoint(Section3.1.2.2)whichisalsobasedon:doserateattheSiteBoundary.

PlumeShineParameters (Table3-2)13'heLicenseehasnotprovidedamethodology tocalculate theplumeshinefactorsBiandVi.Themethodology ofcalculation isprovidedinSection3.4.1.45'heLicenseedidnotprovideanydataforTable3-2.(TheLicenseestatedthat"Thevaluesinthistablewillbeprovidedatalatertime".)ThevalueshavebeenprovidedinTable3-2.62Tables3-4to3-21UraniumFuelCycle15to3235Provideequations intheODCMfortheparameters calculated inthetables.'heLicenseestatedthatfishconsumption andshoreline sedimentarethepathwaysusedforliquiddosecalculation.

However,thedrinkingwaterpathwayisnotconsidered.

Also,themethodology tocalculate dosesfromshoreline sedimentisnotprovidedintheODCM.Theequations forcalculating theparameters forTables3-4to3-6areinSection3.4.3andthoseforTables3-7to3.21areinSection3.4.4.Thedrinkingwaterpathwayisnotsignificant.

Methodology forcalculating dosesfromshoreline sedimentisprovidedinSection4.1.47-5890,91

~Sub'ectRev.0PaeNumber35Rev.0CommentsNomethodology isprovidedtoestimatethedirectradiation.

Rev.1~ResouseThemethodology usingenvironmental TLD'sisgiveninSection4.3.Rev.1~b92Environmental HonitoringProgram3641-43'heequationgivenforfactorRisincorrect:

sometypographic errorsmayhavebeencommitted.

'nTable5.1forsamplinglocations, thenatureofthelocations (suchason-site,control,orindicator) isnotclearlyspecified foreachlocation.

SinceNineMilePointUnits1and2andtheFitzpatrick plantarelocatedatthesamesite,theenvrionmental samplelocations, byagreement betweentherespective licensees, aresupposedtobeidentical.

However,numerousdifferences arefoundbetweenthesamplelocations ofNineMilePointUnit2andthelocations providedintheFitzPatrick ODCM(Rev.2datedJune25,1985).ItappearsthatNineMilePointUnit2hasacompletelistofthemostup-to-date information onsamplelocations.

However,thedifferences mayreflectlackofcoordination betweentherespective licensees onenvironmental sampleprograms.

Thedifferences intheequationgivenandtheequations ofSectionsC-3andC-4ofReg.Guide1.109areidentified inSection4.4.(X/Qisinunitsofsec/m3).Theequationiscorrect.Noon-sitemonitoringlocations arerequired.

Controllocations arethoselocatedatmaplocations 30,31,38,43,47,54,55;alleasilydistinguished bydistanceanddirection.

Unit1andUnit2ODCH'snowindicateidentical locations; theJAFrecentrevisionshouldbethesame.9498-100

~Sub'ectRev.0PaeNumberRev.0CommentsRev.1~ResenseRev.1PaeNumberMonthlyLiquidOoseProjection (RETS4.11.1.3.1)

'heLicenseedidnotprovideasectiontodescribethemethodology formonthlyliquiddoseprojection pertheLicensee's RETS3.11.1.3.

Section2.6wasprovided16toaddressTS3.11.1.3.

Notethatitisexpectedtheliquidradwastesystemwillbefullyutilizedatalltimes,thusnegatingtheneedtomakesuchaprojection, exceptinunusualcircumstances.

LiquidandGaseousEffluentFlowOiagrams'heNRCBranchTechnical Positionasissuedin1979specifies needsforthelicensees toprovideeffluentflowdiagramstoclarifyandexplaintheoperability oftheradwastetreatment systems.TheBranchTechnical Positionstates:"Provideaflowdiagram(s) definingthetreatment pathsandthecom-ponentsoftheradioactive liquid,gaseousandsolidwastemanage-mentsystemsthataretobemain-tainedandused,pursuantto10CFR50.36a, tomeetTechnical Specifications 3.11.1.3, 3.11.2.4and3.11.3.1.

Subcomponents ofpackagedequipment canbeidenti-fiedbyalist.Foroperating reactorswhoseconstruction permitapplications werefiledpriortoJanuary2,1971,theflowdiagram(s) shallbeconsistent withtheinformation providedinconfor-mancewithSectionV.B.1ofAppendixIto10CFR50.ForOLapplications whoseconstruction permitswerefiledafterJanuary2,1971,theflowdiagram(s) shallbeconsistent withtheinformation providedinChapterlloftheFinalSafetyAnalysisReport(FSAR)oramendments thereto."

Figures2-1,2-2and2-3definetheLowConduc-tivityLiquidWasteSystem.Figures2-4,2-5and2-6definetheHighConductivity LiquidWasteSystem.Figures2-7and2-&definetheRegenerant WasteSystem.Solidificationofwasteisaddressed intheProcessControlProgram,separately submitted (seeTS3.11.3).ThefiguresprovidedarefromtheFSAR,Chapter11.20,21,2223,24,2526,27 I

~SobectLiquidandGaseousEffluentFlowDiagram(Cont.)Estimation ofI-133Rev.0PaeNumberRev.0CommentsTheflowdiagramsshouldalsocontaininformation ontheeffluentmonitoring instrumentation regarding thesetpointcalculation.

Thus,theinformation asrequiredbytheBranchTechnical Positionincludes:

"Theinstrumentation foreachalarmandtripsetpoint, including radiation monitoring andsamplingsystemsandeffluentcontrolfeatures, shouldbeidentified byreference totheFSAR(orFinalHazardSummary).

Thisinformation shouldbeconsis-tentwiththerecommendations ofSectionIofStandardReviewPlan11.5,NUREG-75/087 (Revision 1)."ThelicenseedidnotprovideamethodtoestimatethereleaseofI-133.Onestimating theradio-activityofI-133,theNRCstaffhasspecificguidanceasfollows:"Underappropriate conditions, thel-133contribution couldbeimpor-tanttothePart20doseratesandtotheAppendixIdoses.Therefore, Specifications 3/4.11.2.1 and3/4.11.2.3 shouldbewrittenasshownintheenclosures.

Rev.1~ResooseODCMFigure2-9iden-tifiesstheServiceWatermonitors(RE146AandRE146B),theCoolingTowerBlowdownmonitor(RE157),andtheLiquidRadwasteEffluentmonitor(RE206).Figure3-5iden-tifiestheGaseousEffluentpathways.

Figure3-6providesablockdiagramofthestackmonitor(RE170).Theventmonitor(RE180)isessentially identical.

Section3.5wasprovidedtoindicatethemethodsofestimating I-133release.SeeSection3.5Rev.1PaeNumber2887885959 0C'

~Sub'ectEstimation ofI-133(Cont.)Rev.0PaeNumberRev.0CommentsThesespecificationswi11notexplicitly requiresamplingandanalysistodetermine theI-133releases.

Therefore, Table4.11-2neednotspecifyI-133.Conversely, theSpecifications willrequireaccounting forI-133andthemethodforsodoingmustbedetailedintheODCM.Acceptable methodswillbeaddressed inNUREG-0133, Rev.l.Rev.1~ResouseRev.1PaeNumberAcceptable approaches toestimating I-133releasesareasfollows:1.ConvertthesamplesforI-133(aswellasI-131)andassumeaconstantreleaseratesobuildupisproportional to[1-exp(-At)]/A.2.Periodically takeshort-periodsamplestodetermine theratioofI-131toI-133activity.

Then,usethisratiotoestimateI-133re-leasesbasedonmeasurements ofI-131releases.

3.Inspecialcases,whereaplantlackscapability formeasuring I-133,assumethattheI-133activityreleaseis4timestheI-131activity."Method2orMethod3willbeuseddepending onanalytical resultsobtained.

Method1isambiguous; wedonotplantouseit.59 t

~SebectEstimation ofI-133(Cont.)Rev.0Pae.NumberRev.0CommentsThisrequirement isapplicable toaBHRsuchasNineMilePointUnit2,especially sinceI-133isnotincludedinthesamplinganalysisprogramdescribed intheirRETSTable4.11-2.Rev.1~Resonse 4V%l,f~~/l