ML23150A080
| ML23150A080 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 05/30/2023 |
| From: | Turner Z Plant Licensing Branch II |
| To: | Pournaras D Southern Nuclear Operating Co |
| References | |
| EPID L-2023-LLA-0061, EPID L-2023-LLR-0023 | |
| Download: ML23150A080 (1) | |
Text
1 Zach Turner From:
Zach Turner Sent:
Tuesday, May 30, 2023 8:59 AM To:
Pournaras, DeLisa S.
Cc:
Ed Miller; John Lamb; ACCHAMBE@southernco.com; KGLOWERY@southernco.com
Subject:
Acceptance Review-Vogtle, Units 1 and 2-Proposed LAR and Relief Request to Revise TS 3.4.14.1 and IST ALT-VR-02 (EPIDS L-2023-LLA-0061 and L-2023-LLR-0023)
- DeLisa,
ByletterdatedMay1,2023(AgencywideDocumentsAccessandManagementSystem(ADAMS)AccessionNo.
ML23121A267),SouthernNuclearOperatingCompany(SNC,thelicensee)submittedalicenseamendmentrequestand areliefrequestforVogtleElectricGeneratingPlant(Vogtle),Units1and2.
TheproposedchangewouldreviseTechnicalSpecification(TS)3.4.14,RCSPressureIsolationValve(PIV)Leakageand SurveillanceRequirement(SR)3.4.14.1toonlyrequiretestingatthefrequenciesspecifiedintheInserviceTesting PrograminaccordancewiththeAmericanSocietyofMechanicalEngineers(ASME)CodeforOperationandMaintenance (OM)ofNuclearPowerPlants.ThiswouldeffectivelyremovePIVtestingat18month,ninemonth,andeventbased frequenciestoconformwiththeASMEOM2yeartestingonapplicableVogtlePIVs.Additionally,SNCproposedan alternativetotherequirementsofASMEOMCodeSectionISTC3522,CategoryCCheckValves,andSubsectionISTC 3630(a)underSectionISTC3630,LeakageRateforOtherThanContainmentIsolationValves,forapplicableVogtle PIVstoallowtestingtobeconductedataperformancebasedfrequency,asspecifiedinNuclearEngineeringInstitute 9401,Revision3A.
ThepurposeofthisemailistoprovidetheresultsoftheU.S.NuclearRegulatoryCommission(NRC)staffsacceptance reviewofthisamendmentandreliefrequest.Theacceptancereviewwasperformedtodetermineifthereissufficient technicalinformationinscopeanddepthtoallowtheNRCstafftocompleteitsdetailedtechnicalreview.The acceptancereviewisalsointendedtoidentifywhethertheapplicationhasanyreadilyapparentinformation insufficienciesinitscharacterizationoftheregulatoryrequirementsorthelicensingbasisoftheplant.
ConsistentwithSection50.90ofTitle10oftheCodeofFederalRegulations(10CFR),anapplicationforanamendment toalicense(includingthetechnicalspecifications)mustfullydescribethechangesrequested,andfollowingasfaras applicable,theformprescribedfororiginalapplications.Section50.34of10CFRaddressesthecontentoftechnical informationrequired.Thissectionstipulatesthatthesubmittaladdressthedesignandoperatingcharacteristics,unusual ornoveldesignfeatures,andprincipalsafetyconsiderations.
Additionally,pursuanttoSections50.55a(z)(1)and50.55a(z)(2)ofTitle10oftheCodeofFederalRegulations(10CFR),
theapplicantshalldemonstratethattheproposedalternativeswouldprovideanacceptablelevelofqualityandsafety, orthatcompliancewiththespecifiedrequirementsofSection50.55awouldresultinhardshiporunusualdifficulty withoutacompensatingincreaseinthelevelofqualityorsafety.
TheNRCstaffhasreviewedyourapplicationandconcludedthatitdoesprovidetechnicalinformationinsufficientdetail toenabletheNRCstafftocompleteitsdetailedtechnicalreviewandmakeanindependentassessmentregardingthe acceptabilityoftheproposedamendmentandreliefrequestsintermsofregulatoryrequirementsandtheprotectionof publichealthandsafetyandtheenvironment.Giventhelesserscopeanddepthoftheacceptancereviewascompared tothedetailedtechnicalreview,theremaybeinstancesinwhichissuesthatimpacttheNRCstaffsabilitytocomplete thedetailedtechnicalreviewareidentifieddespitecompletionofanadequateacceptancereview.Ifadditional informationisneeded,youwillbeadvisedbyseparatecorrespondence.
2 Basedontheinformationprovidedinyoursubmittal,theNRCstaffhasestimatedthatthislicensingrequestwilltake approximately220hourstocompletethelicenseamendmentrequest,andanadditional230hourstocompletethe reliefrequest.TheNRCstaffexpectstocompletethisreviewbyApril30,2024.Ifthereareemergentcomplexitiesor challengesinourreviewthatwouldcausechangestotheinitialforecastedcompletiondateorsignificantchangesinthe forecastedhours,thereasonsforthechanges,alongwiththenewestimates,willbecommunicatedduringtheroutine interactionswiththeassignedprojectmanager.
TheseestimatesarebasedontheNRCstaffsinitialreviewoftheapplicationandtheycouldchange,duetoseveral factorsincludingrequestsforadditionalinformation,unanticipatedadditionofscopetothereview,andreviewbyNRC advisorycommitteesorhearingrelatedactivities.AdditionaldelaymayoccurifthesubmittalisprovidedtotheNRCin advanceorinparallelwithindustryprograminitiativesorpilotapplications.
Ifyouhaveanyquestions,pleasecontactmeat(301)4152258,orviaemailatzachary.turner@nrc.gov.
ZachM.Turner,ProjectManager PlantLicensingBranchII1 DivisionofOperatingReactorLicensing OfficeofNuclearReactorRegulation