ML17261B092: Difference between revisions

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{{#Wiki_filter:ACCELERATEDDISTRIBUTIONDEMONSTRATIONSYSTEMREGULATORYINFORMATIONDISTRIBUTIONSYSTEM(RIDS)ACCESSIONNBR:9007180303DOC.DATE:90/07/11NOTARIZED:NOFACIL:50-244RobertEmmetGinnaNuclearPlant,Unit1,RochesterAUTH.NAMEAUTHORAFFILIATIONMECREDY,R.C.RochesterGas6ElectricCorp.RECIP.NAMERECIPIENTAFFILIATIONJOHNSON,A.R.ProjectDirectorateI-3
{{#Wiki_filter:ACCELERATED DISTRIBUTION DEMONSTRATION SYSTEMREGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS)ACCESSION NBR:9007180303 DOC.DATE:90/07/11NOTARIZED:
NOFACIL:50-244 RobertEmmetGinnaNuclearPlant,Unit1,Rochester AUTH.NAMEAUTHORAFFILIATION MECREDY,R.C.
Rochester Gas6ElectricCorp.RECIP.NAME RECIPIENT AFFILIATION JOHNSON,A.R.
ProjectDirectorate I-3


==SUBJECT:==
==SUBJECT:==
Respondsto900709requestforaddiinforecontainmentintegrityinsp.DISTRIBUTIONCODE:AOOIDCOPIESRECEIVED:LTR2ENCL0SIZE:TITLE:ORSubmittal:GeneralDistributionDOCKETG05000244tDNOTES:LicenseExpdateinaccordancewith10CFR2,2.109(9/19/72).05000244/RECIPIENTIDCODE/NAMEPD1-3LAJOHNSON,AINTERNAL:NRR/DET/ECMB9HNRR/DST8E2NRR/DST/SICB7ENUDOCS-ABSTRACTOGC/HDS2RES/DSIR/EIBEXTERNAL:LPDRNSICCOPIESLTTRENCLRECIPIENTIDCODE/NAMEPD1-3PDNRR/DOEA/OTSB11NRR/DST/SELB8DNRR/DST/SRXB8E-8@MEGFILE01NRCPDRCOPIESLTTRENCLDDDNOTETOALL"RIDS"RECIPIENTS:DDPLEASEHELPUSTOREDUCEWASTE!CONTACTTHEDOCUMENTCONTROLDESK,ROOMP1-37(EXT.20079)TOELIMINATEYOURNAMEFROMDISTRIBUTIONLISTSFORDOCUMENTSYOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:LTTR21ENCL eill/////I///I//I//////I////1/I////////ROCHESTERGASwf~ai~owiieI'iRORYANDELECTRICCORPORATIONo89EASTAVENUE,ROCHESTER,N.K14649.0001-July11,1990TCtfPHONEARKAcooKvie.546-2700U.S.NuclearRegulatoryCommissionDocumentControlDeskAttn:AllenR.JohnsonProjectDirectorateI-3Washington,D.C.20555
Respondsto900709requestforaddiinforecontainment integrity insp.DISTRIBUTION CODE:AOOIDCOPIESRECEIVED:LTR 2ENCL0SIZE:TITLE:ORSubmittal:
GeneralDistribution DOCKETG05000244tDNOTES:License Expdateinaccordance with10CFR2,2.109(9/19/72).
05000244/RECIPIENT IDCODE/NAME PD1-3LAJOHNSON,A INTERNAL:
NRR/DET/ECMB 9HNRR/DST8E2NRR/DST/SICB 7ENUDOCS-ABSTRACT OGC/HDS2RES/DSIR/EIB EXTERNAL:
LPDRNSICCOPIESLTTRENCLRECIPIENT IDCODE/NAME PD1-3PDNRR/DOEA/OTSB11 NRR/DST/SELB 8DNRR/DST/SRXB 8E-8@MEGFILE01NRCPDRCOPIESLTTRENCLDDDNOTETOALL"RIDS"RECIPIENTS:
DDPLEASEHELPUSTOREDUCEWASTE!CONTACTTHEDOCUMENTCONTROLDESK,ROOMP1-37(EXT.20079)TOELIMINATE YOURNAMEFROMDISTRIBUTION LISTSFORDOCUMENTS YOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:
LTTR21ENCL eill/////I///I//I/////
/I////1/I////////
ROCHESTER GASwf~ai~owiieI'iRORYANDELECTRICCORPORATION o89EASTAVENUE,ROCHESTER, N.K14649.0001
-July11,1990TCtfPHONEARKAcooKvie.546-2700U.S.NuclearRegulatory Commission DocumentControlDeskAttn:AllenR.JohnsonProjectDirectorate I-3Washington, D.C.20555


==Subject:==
==Subject:==
ContainmentIntegrityInspectionR.E.GinnaNuclearPowerPlantDocketNo.50-244
Containment Integrity Inspection R.E.GinnaNuclearPowerPlantDocketNo.50-244


==Reference:==
==Reference:==
July9,1990NRCRequestforAdditionalInformation,(TACNo.67427),i
 
July9,1990NRCRequestforAdditional Information, (TACNo.67427),i


==DearMr.Johnson:==
==DearMr.Johnson:==
InresponsetotheNRC'sJuly9,1990requestforadditionalinformation,RG&Eisprovidingthefollowingresponsesinanexpeditiousmanner.RG&Edoesnotbelievethatgroundwaterisenteringtheannularaccessareaaroundcontainmentfrombeneathcontainment,assuspectedbyNRCinspectors,butfrombehindthesheetpilingthatformtheretainingwallintheeasternlyquadrantoftheintermediatebuildingsub-basement.Becausethisareaisclassifiedasaconfinedspace,andiscontaminated,theeffortnecessarytoconfirmthisinformationisdifficult.Nonetheless,thismajoreffortisunderway.PreliminaryresultsareexpectedbyJuly16,withdetailedresultsexpectedbyJuly20.RG&Ealsodoesnotexpectthatanydegradationofcontainmentstructuralmembersisoccurringatthistime.WehavemetallnecessarysurveillancetestingrequirementsneededtoconformtotheGinnaTechnicalSpecifications,includingmanyIntegratedLeakRateTests(ILRT)andtendonsurveillancetests(reviewedinSEPTopicIII-7.A).Resultsfromthe1989ILRTwereexcellentandthejust-completedtendontestingconfirmedthatalllift-offtestsmetacceptancecriteria,andallinspectedtendonwireswerein"as-new"condition.RG&Ewillreviewtheoriginalstructuraldesignrequirementsofthecontainmentandassesstheimpactoftherecentlydeterminedgroundwaterlevelonthedesign.Forstructuraldetailswhichareinaccessibleduetolocation(highradiationareaintheRHRroom,orencasedinrockorconcrete)absolutelydefinitiveconclusionsmaynotbepossible.However,5'00718030390'0711,PDRADOCK05000244QPDCourbestengineeringjudgmentwillbeusedtoprovidereasonable)04~g5~
InresponsetotheNRC'sJuly9,1990requestforadditional information, RG&Eisproviding thefollowing responses inanexpeditious manner.RG&Edoesnotbelievethatgroundwater isenteringtheannularaccessareaaroundcontainment frombeneathcontainment, assuspected byNRCinspectors, butfrombehindthesheetpiling thatformtheretaining wallintheeasternly quadrantoftheintermediate buildingsub-basement.
11J~'Iir assurancethattheproperstructuralfunctionscanbemet.Thisapproachisconsistentwithother,typesofsurveillancetests(e.g.MOVATS,testinginresponsetoGenericLetter89-10)whereaduplicationofpost-accidentfunctionscannotbeachieved,butgoodjudgmentisusedtoextrapolatetheabilitytomeetsafetyfunctionsbasedoncurrentavailabletestingmethodologies.Anyreasonablyavailableinformation,whetherNRCorindustrygenerated,willbeusedtohelpusperformsuchcorrelations.BecauseoftheuniquenatureoftheGinnacontainmentdesign,asdiscussedinourJuly,9telecon,RG&Eproposesthat.theNRCtechnicalreviewersandRG&Epersonneldiscussourfindingsandconclusionsatamutuallyacceptabletime,suchastheendoftheweekofJuly23,attheRG&Eoffices.Verytrulyyours,RobertC.MecredyDivisionManagerNuclearProductionGJW/112Attachmentxc:Mr.AllenR.Johnson(MailStop14D1)ProjectDirectorateI-3Washington,D.C.'0555U.S.NuclearRegulatoryCommissionRegionI475AllendaleRoadKingofPrussia,PA19406GinnaSeniorResidentInspector}}
Becausethisareaisclassified asaconfinedspace,andiscontaminated, theeffortnecessary toconfirmthisinformation isdifficult.
Nonetheless, thismajoreffortisunderway.
Preliminary resultsareexpectedbyJuly16,withdetailedresultsexpectedbyJuly20.RG&Ealsodoesnotexpectthatanydegradation ofcontainment structural membersisoccurring atthistime.Wehavemetallnecessary surveillance testingrequirements neededtoconformtotheGinnaTechnical Specifications, including manyIntegrated LeakRateTests(ILRT)andtendonsurveillance tests(reviewed inSEPTopicIII-7.A).
Resultsfromthe1989ILRTwereexcellent andthejust-completed tendontestingconfirmed thatalllift-offtestsmetacceptance
: criteria, andallinspected tendonwireswerein"as-new"condition.
RG&Ewillreviewtheoriginalstructural designrequirements ofthecontainment andassesstheimpactoftherecentlydetermined groundwater levelonthedesign.Forstructural detailswhichareinaccessible duetolocation(highradiation areaintheRHRroom,orencasedinrockorconcrete) absolutely definitive conclusions maynotbepossible.
However,5'007180303 90'0711,PDRADOCK05000244QPDCourbestengineering judgmentwillbeusedtoprovidereasonable
)04~g5~
11J~'Iir assurance thattheproperstructural functions canbemet.Thisapproachisconsistent withother,typesofsurveillance tests(e.g.MOVATS,testinginresponsetoGenericLetter89-10)whereaduplication ofpost-accident functions cannotbeachieved, butgoodjudgmentisusedtoextrapolate theabilitytomeetsafetyfunctions basedoncurrentavailable testingmethodologies.
Anyreasonably available information, whetherNRCorindustrygenerated, willbeusedtohelpusperformsuchcorrelations.
BecauseoftheuniquenatureoftheGinnacontainment design,asdiscussed inourJuly,9telecon,RG&Eproposesthat.theNRCtechnical reviewers andRG&Epersonnel discussourfindingsandconclusions atamutuallyacceptable time,suchastheendoftheweekofJuly23,attheRG&Eoffices.Verytrulyyours,RobertC.MecredyDivisionManagerNuclearProduction GJW/112Attachment xc:Mr.AllenR.Johnson(MailStop14D1)ProjectDirectorate I-3Washington, D.C.'0555 U.S.NuclearRegulatory Commission RegionI475Allendale RoadKingofPrussia,PA19406GinnaSeniorResidentInspector}}

Revision as of 13:19, 29 June 2018

Responds to 900709 Request for Addl Info Re Containment Integrity Insp.Util Will Provide Preliminary Results by 900716 Re Where Groundwater Entering Annular Access Area. Meeting Proposed for Wk of 900723
ML17261B092
Person / Time
Site: Ginna Constellation icon.png
Issue date: 07/11/1990
From: MECREDY R C
ROCHESTER GAS & ELECTRIC CORP.
To: JOHNSON A R
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), Office of Nuclear Reactor Regulation
References
TASK-03-07.A, TASK-3-7.A, TASK-RR TAC-67427, NUDOCS 9007180303
Download: ML17261B092 (4)


Text

ACCELERATED DISTRIBUTION DEMONSTRATION SYSTEMREGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS)ACCESSION NBR:9007180303 DOC.DATE:90/07/11NOTARIZED:

NOFACIL:50-244 RobertEmmetGinnaNuclearPlant,Unit1,Rochester AUTH.NAMEAUTHORAFFILIATION MECREDY,R.C.

Rochester Gas6ElectricCorp.RECIP.NAME RECIPIENT AFFILIATION JOHNSON,A.R.

ProjectDirectorate I-3

SUBJECT:

Respondsto900709requestforaddiinforecontainment integrity insp.DISTRIBUTION CODE:AOOIDCOPIESRECEIVED:LTR 2ENCL0SIZE:TITLE:ORSubmittal:

GeneralDistribution DOCKETG05000244tDNOTES:License Expdateinaccordance with10CFR2,2.109(9/19/72).

05000244/RECIPIENT IDCODE/NAME PD1-3LAJOHNSON,A INTERNAL:

NRR/DET/ECMB 9HNRR/DST8E2NRR/DST/SICB 7ENUDOCS-ABSTRACT OGC/HDS2RES/DSIR/EIB EXTERNAL:

LPDRNSICCOPIESLTTRENCLRECIPIENT IDCODE/NAME PD1-3PDNRR/DOEA/OTSB11 NRR/DST/SELB 8DNRR/DST/SRXB 8E-8@MEGFILE01NRCPDRCOPIESLTTRENCLDDDNOTETOALL"RIDS"RECIPIENTS:

DDPLEASEHELPUSTOREDUCEWASTE!CONTACTTHEDOCUMENTCONTROLDESK,ROOMP1-37(EXT.20079)TOELIMINATE YOURNAMEFROMDISTRIBUTION LISTSFORDOCUMENTS YOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:

LTTR21ENCL eill/////I///I//I/////

/I////1/I////////

ROCHESTER GASwf~ai~owiieI'iRORYANDELECTRICCORPORATION o89EASTAVENUE,ROCHESTER, N.K14649.0001

-July11,1990TCtfPHONEARKAcooKvie.546-2700U.S.NuclearRegulatory Commission DocumentControlDeskAttn:AllenR.JohnsonProjectDirectorate I-3Washington, D.C.20555

Subject:

Containment Integrity Inspection R.E.GinnaNuclearPowerPlantDocketNo.50-244

Reference:

July9,1990NRCRequestforAdditional Information, (TACNo.67427),i

DearMr.Johnson:

InresponsetotheNRC'sJuly9,1990requestforadditional information, RG&Eisproviding thefollowing responses inanexpeditious manner.RG&Edoesnotbelievethatgroundwater isenteringtheannularaccessareaaroundcontainment frombeneathcontainment, assuspected byNRCinspectors, butfrombehindthesheetpiling thatformtheretaining wallintheeasternly quadrantoftheintermediate buildingsub-basement.

Becausethisareaisclassified asaconfinedspace,andiscontaminated, theeffortnecessary toconfirmthisinformation isdifficult.

Nonetheless, thismajoreffortisunderway.

Preliminary resultsareexpectedbyJuly16,withdetailedresultsexpectedbyJuly20.RG&Ealsodoesnotexpectthatanydegradation ofcontainment structural membersisoccurring atthistime.Wehavemetallnecessary surveillance testingrequirements neededtoconformtotheGinnaTechnical Specifications, including manyIntegrated LeakRateTests(ILRT)andtendonsurveillance tests(reviewed inSEPTopicIII-7.A).

Resultsfromthe1989ILRTwereexcellent andthejust-completed tendontestingconfirmed thatalllift-offtestsmetacceptance

criteria, andallinspected tendonwireswerein"as-new"condition.

RG&Ewillreviewtheoriginalstructural designrequirements ofthecontainment andassesstheimpactoftherecentlydetermined groundwater levelonthedesign.Forstructural detailswhichareinaccessible duetolocation(highradiation areaintheRHRroom,orencasedinrockorconcrete) absolutely definitive conclusions maynotbepossible.

However,5'007180303 90'0711,PDRADOCK05000244QPDCourbestengineering judgmentwillbeusedtoprovidereasonable

)04~g5~

11J~'Iir assurance thattheproperstructural functions canbemet.Thisapproachisconsistent withother,typesofsurveillance tests(e.g.MOVATS,testinginresponsetoGenericLetter89-10)whereaduplication ofpost-accident functions cannotbeachieved, butgoodjudgmentisusedtoextrapolate theabilitytomeetsafetyfunctions basedoncurrentavailable testingmethodologies.

Anyreasonably available information, whetherNRCorindustrygenerated, willbeusedtohelpusperformsuchcorrelations.

BecauseoftheuniquenatureoftheGinnacontainment design,asdiscussed inourJuly,9telecon,RG&Eproposesthat.theNRCtechnical reviewers andRG&Epersonnel discussourfindingsandconclusions atamutuallyacceptable time,suchastheendoftheweekofJuly23,attheRG&Eoffices.Verytrulyyours,RobertC.MecredyDivisionManagerNuclearProduction GJW/112Attachment xc:Mr.AllenR.Johnson(MailStop14D1)ProjectDirectorate I-3Washington, D.C.'0555 U.S.NuclearRegulatory Commission RegionI475Allendale RoadKingofPrussia,PA19406GinnaSeniorResidentInspector