ML19248C132
| ML19248C132 | |
| Person / Time | |
|---|---|
| Site: | HI-STORE |
| Issue date: | 08/26/2019 |
| From: | Holtec |
| To: | Office of Nuclear Material Safety and Safeguards |
| Shared Package | |
| ML19248C140 | List: |
| References | |
| 5025048 | |
| Download: ML19248C132 (5) | |
Text
Attachment1toHoltecLetter5025048 ResponsestoNRCStaffEvaluationofRAIResponses ResponsetoRAIERCB5,November2018(ML18345A137)
RAIERCB5requestedadditionaldetailsforthecalculationsandassumptionsforthe$4.5million operationandmaintenancecostsinERTable9.2.5(Holtec,2017:hereinaftercalledERRev0).Table 9.2.5fromERRev0citedthe2017DataCallasthesourcefortheinformationinTable9.2.5.However, the2017DataCalldocumentwasnotprovidedintheinitiallicenseapplication.
TheRAIresponseupdatedERChapter9(Holtec,2018a:hereinaftercalledERRev3)andHoltecReport HI2177593(Holtec,2018b).TheDataCall2017documentwasincludedwithinERRev3asAppendixG.
TherevisionsinERRev3changedtheannualoperationandmaintenancecostestimatesfrom$4.5 millionto$27.3millionbutdidnotclarifyhowthe$27.3millionestimatewasgenerated.
Theinputstotheupdated$27.3millionestimateinERRev.3donotappeartobeconsistentwiththe estimatesprovidedtheJanuary2019responsetoRAICB2(Holtec,2019a).ERRev.3statedthatthe initial$4.5millionestimatewasbasedonexistingdecommissionedpowerplantcostsandthatthe revised$27.3millionestimatewasproratedtomoreadequatelyrepresentexpectedcostsforthe proposedCISF.TheupdatedTable9.2.5alsoincludesa$19,404,800lineitemidentifiedasplant operationcosts(minuslabor)butdoesnotexplainthebasisforthislineitemcost.Therevisedestimate accountedforanincreaseinlaborcosts(seeERTable9.2.5)butdidnototherwisereflectanychangein thenumberofemployeesorthehourlyratescitedinthe2017DataCall,whichhadestimateda$4.5 millioncost.
ThefollowinginformationshouldbesubmittedtocompletetheRAIresponse:
ConfirmthecostestimatefortheoperationandmaintenanceoftheproposedCISF.
Provideadetailedexplanationofhowthiscostestimatewasgenerated,includingadescription ofwhatcomprisesthelineitemforoperationcostsminuslabor.Indoingso,explainwhether theJanuary2019responsetoRAIERCB2remainsaccurate.
Asappropriate,provideconformingchangestotheERandotherapplicationdocumentation (e.g.,HoltecFinancialAssurancePlanReport).
HoltecResponse:
Thetotalcostestimateof$27.3millionfortheoperationandmaintenanceoftheproposedCISFas showninTable9.2.5ofERRev.3(andlaterrevisions)isaccurate.AtypointhethirdlineforChemists hasbeencorrectedfrom$249,000to$249,600(correctioniscapturedinERRev.7).Thistypodidnot causeerrorsinotherlineitemsofthistableandhadnoeffectonthetotalcostestimatefor maintenanceandoperations(approximately$27.3million).
ThefullcostestimatepresentedinERTable9.2.5isascaledvaluebasedoffthe$4.5millionestimated costsprovidedbyanexisting,decommissionednuclearpowerplant.Thevalueof$4.5million,as describedinthe2017DataCall,specifiesthat$1.3millionofthe$4.5millionisdirectlyattributedtothe costoflabor.Itisassumedthatthetotalannualoperatingcostsfornonlaborcostswillscalelinearly withtheincreaseinlaborcosts.Therefore,todeterminethetotalannualoperatingcosts,thetotal annuallaborcostsarecalculatedfirstbasedonthetotaloperationalworkforcequantityandsalary estimates(alsoprovidedinthe2017DataCall).Allworkersareassumedtowork2080hoursannually.
Thetotalannuallaborcostisthereforedeterminedtobe$7,883,200.Theannuallaborcostisthen multipliedby4.5anddividedby1.3togettheestimatedtotalannualoperatingcosts.Thenonlabor Page 1 of 5 toHoltecLetter5025048 ResponsestoNRCStaffEvaluationofRAIResponses portionoftheannualoperatingcostscanthenbedeterminedbysubtractingsumofthelaborcosts fromthetotalannualcosts.
TheJanuary2019responsetoRAIERCB2isnotaccurateasitutilizedthewrongtotaloperationand maintenancecostestimatevalue.However,thetableprovidedintheresponsetoRAIERCB2showing themixofanticipatedoperatingcostsdoesshowaccuratepercentagevaluesforeachlineitem.Table 9.2.5hasbeenupdatedandexpandedinERRev.7toshowtheadditionalnonlaborlineitemsprovided inthepreviousresponsetoRAIERCB2.
Tocapturethechangesasdescribedabove,onlyERChapter9requiredrevision.Nochangeswere neededinanyotherHoltecReportsasaresultoftheseupdates,includingtheHoltecFinancial AssurancePlanReport.TheHoltecFinancialAssurancePlanReportalreadyproperlyreflectsanannual operationsandmaintenancecostof$27.3million.
ResponsetoRAIERCB3,March2019(ML19081A075)
RAIERCB3requestedclarificationofthenetbenefitsornetlossesattributedtotheproposedaction andinconsistenciesintheER(Holtec,2017)regardingwhethertheproposedactionwouldresultinanet benefitornetloss.IntroductorytextinERSection9.2.3statedthattheproposedactionwouldresultin netbenefitsratherthannetlossesunderbothPhase1andfullbuildout(i.e.,Phase120).However, subsequenttestinthatsamesectionstatedthatthediscountedcostsforthefullbuildoutofScenario2 resultedinanetloss.
IntheresponsetoRAIERCB3,theERSection9.2.3(Rev5)(Holtec,2019b)wasrevisedtoconsistently statethatthediscountedcostsforthefullbuildoutofScenario2resultinanetloss.However,thesame revisionoftheERcontainsadditionalinconsistenciesconcerningtheassessmentofnetbenefitsand lossesorcost(netvalues)including:
ThefirstparagraphofERSection9.2.3statednondiscountedcostsforfullbuildoutofScenario 2resultsinanetbenefit(noestimateprovided)whereasparagraphthreeofthesamesection statedthatnondiscountedcostsforfullbuildoutofScenario2resultsinanetcost(loss)of$300 million.
TheestimatednetvaluespresentedintheERSection9.2.3textwereinconsistentwiththenet valuesassociatedwiththeinformationpresentedinERTables9.2.1to9.2.6(hereaftercalled theERSection9.2tables).TheNRCstaffcalculatednetvaluesshowninthetablebelow.It comparesthenetvaluesfromtheERSection9.2.3textandtheERSection9.2tables.The discrepanciesbetweenthetextandtablesareinbold.ThetextinERSection9.2.3containedall ofthenetvaluesbutonlysomeoftheproposedactioncostsandtheNoActionalternativecosts (inputdata).TheERSection9.2tablescontainedalloftheinputdatabutnoneofthenet values.
ComparisonofNetValuesfromERSection9.2.3TextandERTables9.2.1to9.2.6.
Phase Scenario Discounting NetValues(inmillions)
ERSection9.2.3 Text ERSection9.2 Tables Phase1 1and2*
None 1,625 1,625 3Percent 2,086 786 Page 2 of 5 toHoltecLetter5025048 ResponsestoNRCStaffEvaluationofRAIResponses 7Percent 2,352.7 252.7 FullBuildout 1
None na 4,500 3Percent na 2,800 7Percent Na 1,200 FullBuildout 2
None 300 300 3Percent 600 1,700 7Percent 1,300 2,300 FullBuildout 3
None 14,200 14,200 3Percent 15,100 6,700 7Percent 15,800 2,500
- ForPhase1,scenario1and2costestimateswerethesameandnoscenario3costswereestimated.
na-notavailablesinceERSection9.2.3textdidnotprovidethesevalues
ThefollowinginformationshouldbesubmittedtocompletetheRAIresponse.
Identifythecorrectnetvaluesforeachoftheoptionspresentedlistedinthetableabove.
Either:i)revisetheERsothedescriptionofnetvaluesintheERSection9.2.3textisconsistent withtheinformationintheERSection9.2tablesorii)explainhowthedescriptionofnetvalues intheERSection9.2.3andtheinformationintheERSection9.2tablesareconsistent.
HoltecResponse:
ThevaluesinTables9.2.1,9.2.2,9.2.3,9.2.4,9.2.5,and9.2.6thatweresubmittedintheMarch2019 EnvironmentalReportarecorrect.However,thetextinSection9.2.3wasnotupdatedcorrectlyto matchtheupdatedinformationinthetables.ThishasbeencorrectedinERRev.7.
ResponsetoRAIERPA5,March2019(ML19081A075)
RAIERPA5requested:i)theprojectscheduleberevisedtoclearlyidentifybyeachPYwhichproject stagesandphaseareactiveoverthelicenseterm(e.g.,inPY3Phase2constructionandPhase1 operationsareactive)andii)foreachprojectstage,detailthetypeofactivitiesthatwouldbeoccurring andtypesofequipmentthatmaybeinuse.TheERTable1.3(Holtec,2017)onlyaddressedthefirsthalf oftheprojectlifespananddidnotclearlyidentifytheoverlapintermsofphases.TheRAIrequested informationonthepotentialoverlapinordertoassesspotentialboundingimpactsforenvironmental resourceareas,inparticularregardingairqualityandemissionlevels.
TheERTable1.3(Holtec,2019b)wasrevisedinresponsetoRAIERPA5.Fortheconstructionstage, revisedERTable1.3identifiedinwhichPYstheconstructionstagewasactiveandalsospecifiedthe phase(e.g.,PY4-constructionPhase3active).Fortheoperationsstage,revisedERTable1.3identified inwhichPYstheoperationstagewasactive;however,itdidnotincludethephaseinformation.Forthe decommissioningstage,anoteforfinalyearsbutitdidnotspecifyeitherthePYsorphases.Thewritten responsetoRAIERPA5(Holtec,2019c)didnotaddressthesecondpartoftheRAIwhichrequestedfor eachstage,detailwhatactivitiesareoccurringandwhatequipmentisinuse.
Iftheoperationsanddecommissioningstagesoverlap,thenthepeakemissionlevelscouldexceedthe emissionthresholdsidentifiedintheERandwouldseemtobeinconsistentwiththeMarch2019 responsetoRAIERAQ3,whichstatesthatoperationswouldceaseandallSNFwouldberemovedfrom Page 3 of 5 toHoltecLetter5025048 ResponsestoNRCStaffEvaluationofRAIResponses thesitepriortothestartofdemolitionactivities(i.e.,thatoperationsanddecommissioningwouldnot overlap).Inaddition,theresponseforRAIERPA5statedthatoperationsanddecommissioningstages overlapisnotconsistentwiththeMarch2019RAIresponsetoRAIERAQ3whichstatesthatallSNF wouldberemovedfromthesiteandoperationsactivitiesceasedpriortothestartofdemolition activities(i.e.,operationsanddecommissioningdonotoverlap).
ThefollowinginformationshouldbesubmittedtocompletetheRAIresponse.
Clarifytheextenttowhich,ifatall,operationalstagesatthesitewouldoverlapwith decommissioningstageactivities.
Explaintheimplications,ifany,fortheenvironmentalimpactanalysis(e.g.,forpeakemission levels),andupdatetheERandresponsestoRAIsPA5andAQ3asappropriate.
UpdatetheERandresponsestoRAIsPA5accordingly.
VerifywhethertheMarch2019responsetoRAIAQ3isstillaccurate.Ifnot,thenprovideany necessaryrevisionstoRAIAQ3whenrespondingtothisRAI HoltecResponse:
Table1.3hasbeenfurtherrevisedtospecifytheoperationalphasesinadditiontoconstructionphases andoperationalcapacity.ThenotebelowTable1.3wasrevisedtoclarifythatonlydecommissioning planningactivitieswilloverlapwiththefinalyearsoftheoperationonlystage.However,alldemolition activitiesforthedecommissioningphasewillnotbeginuntilallSNFisremovedfromthesiteand operationsactivitiesceased.
ThisupdatedresponsehasnobearingonthepreviousresponsesforPA5orAQ3aswemaintainthe factthedemolitionactivitieswillnotoverlapwithanyoperationalorconstructionphases(notethatthe updatedResponsetoRAIERAQ4belowdoesresultinchangestoTables4.6.1through4.6.4).
Additionally,Chapter4.6alreadydiscussesindetailthetypeofactivitiesthatcouldbeoccurringand typesofequipmentthatmaybeinuseforeachstage.
ResponsetoRAIERAQ4,March2019(ML19081A075)
RAIERAQ4requesteddetailedinformation(e.g.,calculations,inputs,sourcesactivities,and parameters)usedtogenerateeachoftheemissioninventoriesinERTables4.6.1through4.6.4(Holtec, 2017).
HoltecsMarch2019responsetoRAIERAQ4(Holtec,2019c)includedseparatespreadsheetfiles (Holtec,2019d)whichprovidedadditionalinformationforthegenerationoftheemissioninventoriesin ERTables4.6.1to4.6.4.Theseparatespreadsheetfilesdidnotprovidetheequationsoraclear descriptionofhowtheparticulatematterPM10emissionratesweregeneratedfortheearthmoving activities.
Theinformationinthespreadsheetfileswasalsoinconsistentwithotherinformationintheapplication.
TheERSection4.6.1.1(Holtec,2017)statedthattheearthmovingactivitieswerecalculatedaccounting forthefull133.5hectares[330acres]oflandthatwouldbedisturbedovertheconstructionperiod.
However,thatstatementisinconsistentwiththisinformationintheseparatespreadsheetfileswhich specifyavalueof80.9hectares[200acres].TheMarch2019responsetoRAIERAQ8indicatedthatno mitigationmeasureswereincorporatedintotheemissioninventoriesinERTables9.2.1to9.2.4.This Page 4 of 5 toHoltecLetter5025048 ResponsestoNRCStaffEvaluationofRAIResponses statementwasnotconsistentwiththisinformationintheseparatespreadsheetfileswhichincorporate afivepercentreductioninemissionsfornotconductingactivitieswhenthewindspeedexceeds40.2 kph[25mph].
ThefollowinginformationshouldbesubmittedtocompletetheRAIresponse:
RevisetheERandtheseparatespreadsheetfilestoensureconsistencyconcerningtheamount oflandassociatedwiththeearthmovingactivityemissions.
ProvidetheequationandinputparametersusedtoestimatetheparticulatematterPM10 emissionsfromtheearthmovingactivities.
Ifanychangesaremadeconcerningtheinputsorresultingfugitivedustemissionlevelsforthe earthmovingactivities,thenreviseboththeseparatespreadsheetfilesandERandsupplement theimpactanalysisifnecessary.
ClarifywhethermitigationmeasureswereincorporatedintotheemissioninventoriesinER Tables9.2.1to9.2.4andrevisetheERandtheseparatespreadsheetfilesifneeded.
HoltecResponse:
TheresponsetopreviouslysubmittedRAIERAQ7providedseparatespreadsheetfilesdetailing emissionsestimates.Thosefileshavebeenrevisedtopresentupdatedemissionestimatesforearth movingactivitiesaccountingfortheappropriate330acresasdiscussedbelow,aswellastoprovide additionaldiscussionandequationsforthedeterminationofPM10emissions.SeeattachedfiletabCh.
4.6ConstEarthMoving.
Phase1ofconstructionwilltakeapproximately2yearsandwilldisturbapproximately120acres.This resultsin60acresperyearoflanddisturbed.60acresperyearwillbethemaximumannualemissions basisasPhases220willdisturbtheremainingapproximately210acreswitheachphasetakingoneyear (i.e.subsequent19years),resultinginannualdisturbancerateofapproximately11acresperyear.This accountsforthefull330acreareaoftheproject.
Thecalculationswereadditionallyrevisedsuchthatnomitigationfactorsareusedintheestimation.
ERTables4.6.1through4.6.4havebeenrevisedtoreflecttheupdatedcalculationfiles.Noother changesweremadetothechapter4text.DespitetheincreaseinPM10andPM2.5thereisnochangein theimpactasemissionsfromallcriteriapollutantsfromconstructionactivitieswillremainbelow10 poundsperhour(PPH)and10tonsperyear(TPY).
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