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Category:Annual Operating Report
MONTHYEARML22136A0842022-05-12012 May 2022 Independent Spent Fuel Storage Installation, 2021 Annual Radiological Environmental Operating Report ML18117A2382018-04-24024 April 2018 Submittal of Annual Radioactive Effluent Release Report for 2017 ML16134A1422016-05-10010 May 2016 Independent Spent Fuel Storage Facility (ISFSI) - Transmittal of 2015 Annual Radiological Environmental Operating Report ML14129A3882014-05-0707 May 2014 Independent Spent Fuel Storage Facility - 2013 Annual Radiological Environmental Operating Report ML13142A4252013-04-30030 April 2013 Annual Radioactive Effluent Release Report - 2012 ML12135A3812012-05-10010 May 2012 Independent Spent Fuel Storage Facility - 2011 Annual Radiological Environmental Operating Report ML1130602772011-11-0101 November 2011 2010 Emergency Core Cooling System Annual 10 CFR 50.46 Report ML1113101562011-05-0909 May 2011 Independent Spent Fuel Storage Facility - 2010 Annual Radiological Environmental Operating Report ML1035100222010-12-15015 December 2010 Emergency Core Cooling System, Annual 10 CFR 50.46 Report ML1013200852010-05-10010 May 2010 Annual Radiological Environmental Operating Report, and Independent Spent Fuel Storage Facility ML0932808562009-11-21021 November 2009 2008 Emergency Core Cooling System Annual 10 CFR 50.46 Report, San Onofre Nuclear Generating Station, Units 2 & 3 ML0913206372009-05-11011 May 2009 Independent Spent Fuel Storage Facility, 2008 Annual Radiological Environmental Operating Report ML0835102322008-12-10010 December 2008 Annual Corporate Financial Reports ML0611705382006-04-24024 April 2006 ISFSI - 2005 Annual Radiological Environmental Operating Report ML0535301262005-12-15015 December 2005 2004 Emergency Core Cooling System Annual 10 CFR 50.46 Report for San Onofre Units 2 and 3 ML0436503542004-12-23023 December 2004 2003 Emergency Core Cooling System Annual 10 CFR 50.46 Report, San Onofre Nuclear Generating Station, Units 2 and 3 ML0412602002004-04-29029 April 2004 2003 Annual Radiological Environmental Operating Report ML0413304212004-03-11011 March 2004 Southern California Edison Company - 2002 Annual Report ML0312502822003-04-25025 April 2003 2002 Annual Radiological Environmental Operating Report for San Onofre, Units 1, 2 and 3 2022-05-12
[Table view] Category:Letter
MONTHYEARIR 05000361/20240042024-08-0909 August 2024 NRC Inspection Report 05000361/2024004 and 05000362/2024004 ML24191A2472024-07-0202 July 2024 (Songs), Units 1, 2, and 3, and the Independent Spent Fuel Storage Installation - Revision to the ISFSI-Only Emergency Plan and Associated Changes to Emergency Plan Implementing Procedures ML24151A6482024-06-0303 June 2024 Changes in Reactor Decommissioning Branch Project Management Assignments for Some Decommissioning Facilities ML24141A0802024-05-15015 May 2024 (Songs), Units 1, 2 and 3 and Independent Spent Fuel Storage Installation - 2023 Annual Radiological Environmental Operating Report ML24022A1492024-01-17017 January 2024 Independent Spent Fuel Storage Installation, Revision 4 to the Physical Security Plan IR 05000361/20230062023-11-29029 November 2023 NRC Inspection Report 05000361/2023-006 and 05000362/2023-006 ML23333A0682023-11-22022 November 2023 (SONGS) Units 1, 2, 3 and Independent Spent Fuel Storage Installation - Notification of Change in Nuclear Officer IR 05000361/20230052023-10-11011 October 2023 NRC Inspection Report 05000361/2023005 and 05000362/2023005 ML23276A5942023-09-28028 September 2023 and Independent Spent Fuel Storage Installation - Supplement to Decommissioning Funding Status Reports ML23268A0922023-09-20020 September 2023 Generation Station, Units 1, 2 and 3, and the Independent Spent Fuel Storage Facility (ISFSI) - Re-Registration of Dry Fuel Storage Casks for Amended Certificate of Compliance No. 1040 IR 05000361/20230012023-09-13013 September 2023 NRC Inspection Report 05000361 2023-001 and 05000362 2023-004 ML23240A5372023-08-18018 August 2023 Confirmatory Survey Activities Summary and Results for the Unit 2 and 3 Intake Structures at the San Onofre Nuclear Generating Station San Clemente CA ML23129A1802023-06-14014 June 2023 Cover Letter to State of CA on Draft EA Regarding San Onofre ISFSI Updated DFPs IR 05000361/20230032023-05-31031 May 2023 NRC Inspection Report 05000361/2023003 and 05000362/2023003 IR 05000361/20230022023-05-23023 May 2023 NRC Inspection Report 05000361/2023-002 and 05000362/2023-002 ML23137A1032023-05-11011 May 2023 (Songs), Units 1, 2 and 3, and Independent Spent Fuel Storage Installation - 2022 Annual Radiological Environmental Operating Report ML23123A0932023-04-28028 April 2023 (Songs), Units 1, 2 and 3, Submittal of Annual Radioactive Effluent Release Report - 2022 ML23230A0882023-04-10010 April 2023 Independent Spent Fuel Storage Installation - Decommissioning Quality Assurance Plan ML23094A1332023-03-29029 March 2023 Nuclear Property Insurance ML23094A1272023-03-29029 March 2023 Independent Spent Fuel Storage Installation - 10 CFR 50.82(a)(8)(v and VII) and 10 CFR 72.30(c) Decommissioning Funding Status Report 2021 ML23062A1172023-02-28028 February 2023 Generation Station Units 1, 2 and 3, Annual Radioactive Effluent Release Report for Independent Spent Fuel Storage Installation - 2022 ML22361A1022023-02-24024 February 2023 Reactor Decommissioning Branch Project Management Changes for Some Decommissioning Facilities and Establishment of Backup Project Manager for All Decommissioning Facilities ML23046A3792023-02-22022 February 2023 NRC Inspection Report 050-00361/2023-001 and 050-00362/2023-001 ML23059A2812023-02-22022 February 2023 (Songs), Units 1, 2 and 3, 2022 Annual Turtle Incidental Take Report ML23045A2022023-02-0909 February 2023 Submittal of Annual Corporate Financial Reports for San Onofre Nuclear Generating Station (SONGS) Units 2 and 3 for Fy Ending June 30, 2022 ML22287A1352023-01-0505 January 2023 Issuance of Exemption from Title 10 of the Code of Federal Regulations Part 72.106(B), Independent Spent Fuel Storage Installation Controlled Area Boundary (L-2021-LLE-0056) ML22348A0622023-01-0404 January 2023 NRC to SCE, Transmittal of the National Marine Fisheries Service'S December 12, 2022, Letter of Concurrence for Decommissioning of San Onofre Nuclear Generating Statiion, Units 2 and 3 IR 05000206/20220062022-12-15015 December 2022 NRC Inspection Report 05000206/2022006, 05000361/2022-006, and 05000362/2022-006 ML22347A2122022-12-12012 December 2022 NMFS to NRC, Endangered Species Act Section 7(a)(2) Concurrence Letter for Decommissioning of the San Onofre Nuclear Generating Station ML22340A6652022-12-0505 December 2022 Letter from John Fassell, Chief; Re., State of California Department of Public Health Review and Comments on SONGS Draft Environmental Assessment ML22333A8192022-11-21021 November 2022 Submittal of San Onofre Nuclear Generating Station, Units 2 and 3, Defueled Safety Analysis Report, Revised November 2022 IR 05000361/20220052022-11-17017 November 2022 NRC Inspection Report 05000361/2022-005 and 05000362/2022-005 ML22301A1462022-10-20020 October 2022 Report of Violations of the National Pollutant Discharge Elimination System Permit San Onofre Nuclear Generating Station (Songs), Units 2 and 3 ML22277A0162022-09-29029 September 2022 Independent Spent Fuel Storage Installation Response to Request for Additional Information Regarding Request for Exemption from 10 CFR 72.106(b) IR 05000361/20220042022-09-26026 September 2022 NRC Inspection Report 05000361/2022-004 and 05000362/2022-004 ML22238A0552022-08-29029 August 2022 U.S. Nuclear Regulatory Commission'S Analysis of Southern California Edison'S Decommissioning Funding Status Report for San Onofre Nuclear Generating Station, Units 1, 2, and 3 ML22234A1602022-07-31031 July 2022 Final Report Per 10 CFR Part 21, Degraded Snubber SF1154 Hydraulic Fluid Batch No. 18CLVS431 ML22207B8612022-07-26026 July 2022 NRC (Public) Inspection Report 05000361/2022003; 05000362/2022003 IR 05000361/20220032022-07-26026 July 2022 NRC Inspection Report (Public) 05000361-2022003 and 05000362-2022003 (002) IR 05000361/20220022022-05-12012 May 2022 NRC Inspection Report 05000361/2022-002 and 05000362/2022-002 ML22136A0842022-05-12012 May 2022 Independent Spent Fuel Storage Installation, 2021 Annual Radiological Environmental Operating Report ML22122A0402022-04-28028 April 2022 (Songs), Units 1, 2 and 3 - Annual Radioactive Effluent Release Report - 2021 ML22105A5662022-04-0505 April 2022 20053 Letter - OI Closure to Licensee - Wrongdoing Signed ML22081A1692022-03-31031 March 2022 SONGS Application Acceptance Proposed Exemption from Title 10 of the CFR, Part 72.106(b), ISFSI Controlled Boundary IR 05000206/20214022022-03-24024 March 2022 Notice of Violation, NRC Inspection Report 05000206/2021402, 05000361/2021402, 05000362/2021402, and 07200041/2021401; and Investigation Report 4-2021-004- Public- Cover Letter ML22084A0552022-03-23023 March 2022 10 CFR 50.82(a)(8Xv and VII) and 10 CFR 72.30(c) Decommissioning Funding Status Report 2021 San Onofre Nuclear Generating Station Units 1, 2, and 3 and Independent Spent Fuel Storage Installation IR 05000361/20220012022-03-14014 March 2022 NRC Inspection Report 05000361/2022-001; 05000362/2022-001 ML22066B0242022-03-0303 March 2022 (Songs), Units 1, 2, and 3, and the Independent Spent Fuel Storage Installation - Revision 2 to the ISFSI-Only Emergency Plan and Associated Changes to Emergency Plan Implementing Procedures ML22062B0282022-02-28028 February 2022 and Independent Spent Fuel Storage Installation (Isfsi), Response to Request for Supplemental Information Regarding Request for Exemption from 10 CFR 72.106(b) ML22059B0392022-02-25025 February 2022 International, Proprietary Information to Support SCE Exemption 2024-08-09
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SOUTHERN CALIFORNIA EDISONRichard J.St.Onge Director,NuclearRegulatoryAffairs an d Emerge nc y Planning An EDISONINTERNATIONAL CompanyU.S.Nuclear Regulatory Commission ATTN: DocumentControlDesk Wash ington,D.C.20555 November 1, 201110CFR50.46
Subject:
References:
DocketNos.50-361and50-362, 2010 EmergencyCoreCoolingSystem Annual10CFR50.46Report,SanOnofre Nuclear GeneratingStation,Units2and3 Letter from R.J.St.Onge(SCE)to DocumentControlDesk(NRC)
, dated December 15 ,2010, Subjec t:DocketNos.50-361and50-362, 2009 EmergencyCoreCoolingSystem, Annual10CFR50.46Report,SanOnofre Nuclear Generating Station ,Units2and3
DearSiror Madam:
This letter transmits as Enclosures1and2theSanOnofreUnits2and3 annual reportforthe 2010 calenda ryearrequiredby paragraph(a)(3)(ii)o f10CFR50.46,"Acceptance criteria for emergencycorecooling systems for light-wate r nuclear power reacto rs." This regulation requires Southern CaliforniaEdison(SCE)to annually reporttotheNRC for San OnofreUnits2and3 t he natureofeachchangeto
, or error discovered in , the EmergencyCoreCoolingSystem(ECCS) evaluation model ,orinthe app licationofthismodel that affects the temperature calculation and estimated effectsofanysuch changes , errors , o r appl icationsonthelimitingECCSanalysis.Any signif icant change or errorisrequiredtobereportedtotheNRCwithin30days.Thep revious EmergencyCoreCoolingSystem Annual10CFR50.46 Report was s ubmittedtotheNRCintheabove Reference.
Enclosure1isa descript ion of changesorerrorsinthe Westinghouse evaluationmodels(EM)usedintheSanOnofre Nuclear Generating Station (SONGS)Units2and3ECCS performance analyses Enclosure2isa summaryofthe effectonPeakClad Temperature(PCT)oftheerrors or changesinthe West inghouse evaluation modelsusedinthe SONGSUnits2and3 ECCS performance Analyses.WhilenotlimitingwithregardtoPCT, informationfortheSmallBreakLossof Coolant Accident(LOCA)isalsoincludedin Enclosure2(in accordance with Supplement1toInformation Notice 97-15).SCEmadeno changestotheLOCA evaluation models.P.O.Bo x 128 Sa n C lemente, CA 92672 Document Control Desk Operating Cycle Information November 1, 2011 Unit2andUnit3 operationforthe current reportingperiodis outlined below.Reporting CalendarYear2010 UnitCycle15Cycle16April11 ,2010*2Ended prior to 2010 through December 31, 2010 January 1 , 2010 3 ThroughDidnot start in 2010 October 10 ,2010***Unit2wasin refueling outage the earlypartof2010.
- Unit 3 was in refueling outage the remainderof2010.2010 REPORTING PERIOD SONGSUnits2and3Large Break LOCA EvaluationModel(EM)The Large Break LOCA (LBLOCA)analysisusedthe1999 evaluation modeforthis reporting period.The limiting Large Break LOCAPCTdidnot exceed the 10CFR50.46(b)(1) acceptance criterion of 2,200 of.Thisis documented in Enclosure 2 (Table 1).Thereareno cumulative(sumofthe absolute magnitudesofPCT changes)1999EM Large Break LOCA1OCFR 50.46 model changes or model errors.This is documented in Enclosure 2 (Table 2).SONGSUnits2and3 Small Break LOCA Evaluation Model (EM)TheSmall Break LOCA (SBLOCA)analysisusedthe Supplement 2 Model(S2M)Small Break LOCA evaluation model for this reporting period.
Document Control Desk-3-November 1, 2011 The limitingSmallBreak LOCAPCTdidnot exceed the 10CFR50.46(b)(1) acceptance criterionof2 ,200 of , and remained boundedbythelarge break LOCAPCT.Thisis documented in Enclosure 2 (Table 3).Thereareno cumulative(sumofthe absolute magnitudesofPCT changes)S2M EvaluationModelSmall Break LOCA 10CFR50.46 model changesandmodelerrors.Thisis documented in Enclosure2(Table4).Ifyouhaveany questionsorneed additional informationonthis subject , please contact Ms.L.T.Conklin at 949/368-9443.
Enclosures:
1.Description of ChangesandErrorsinthe Westinghouse Evaluation Modelsusedinthe SONGSUnits2and3ECCS Performance Analyses (Calendar Year 2010)2.Summaryofthe EffectonPCToftheErrorsor Changesinthe Westinghouse Evaluation Modelsusedinthe SONGSUnits2and3 ECCS Performance Analyses (Calendar Year 2010)cc:E.E.Collins , Regional Administrator
,NRCRegionIVR.Hall , NRC Project Manager , San OnofreUnits2and3G.G.Warnick , NRC Senior Resident Inspector, San OnofreUnits2and3 Description of ChangesandErrorsinthe Westinghouse EvaluationModelsUsedinthe SONGSUnits2and3ECCS Performance Analyses (Calendar Year 2010)(2pagesinclud ingthispage)Enclosure1,Page1of2 1.1999EM Version of the Westinghouse Appendix K Large Break LOCA Evaluation Model for Combustion Engineering PWRs None.2.S2M Version of the Westinghouse Appendix K Small Break LOCA Evaluation Model for Combustion Engineering PWRs None.Enclosure 1 ,Page2of2 Summaryofthe EffectonPCToftheErrorsor Changesinthe Westinghouse Evaluation ModelsUsedintheSONGSUnits2and3 ECCS Performance Analyses (Calendar Year 2010)(5pagesincludingthispage)
Enclosu re 2 ,Page1of5 2010 REPORTING PERIODLOSSOF COOLANT ACCIDENT(LOCA)MARGIN
SUMMARY
SAN ONOFRE NUCLEAR GENERATINGSTATIONUNITS2AND3LargeBreakLOCATable1 providesatimelineoftheitems whichcouldaffecttheLarge Break LOCA (LBLOCA)peak cladding temperature(PCT)forthisreportingperiod
.The LBLOCA 10CFR50.46PCTlimitof2,200°Fwasnot exceeded.Table1LimitingLargeBreakLOCAPCT Unit2Unit3LimitingLargeBreakLOCAPCT End 0'2009 2,170°F 2 ,170 o f ChangesinPCTduring2010dueto:a)Model changesorModelerrors(1999EM)*Cycle15*o o f*Cycle16 o OF**b)Cycle Dependent Input Changes*Cycle15*o of*Cycle16 4 o f**LimitingLarge BreakLOCAPCT End 0'2010 2 ,174°F 2 ,170 o f***Unit2ope rated on lyunderCycle16in2010
,hencenoinputforthisentry.
Un it3ope ratedonlyunderCycle15i n 2010 ,hencenoinputforthisentry.
Enclosu re 2 ,Page2of5 The cumulative effectofthe10CFR50.46model changesandmodelerrorsfortheLargeBreak LOCA 1999 EvaluationModelareshowninTable2.Table2 Cumulative Large Break LOCA10CFR 50.46 Model ChangesandModelErrors r ILl PCTI (1)t2 IUnit31 Cumulative LBLOCA10CFR50.46Model ChangesandModelErrors
[;J Prior to 2010 o of Changes in LBLOCAPCTduetoModel ChangesandModelErrorsDuring2010*Cycle15**o o f*Cycle16 o of**Cumulative LBLOCA10CFR50.46Model ChangesandModelErrors End 0'2010 o of O°F***Unit2operatedonlyunderCycle16in2010,hencenoinputforthisentry
.Unit3operatedonlyunderCycle15in2010
,hencenoinputforthisentry. ,Page3of5 (1)Sumofthe absolutemagnitudeofthe10CFR50.46modelchangesandmodelerrors.
Small Break LOCATable3 providesatimelineoftheitemswhichcouldaffecttheSmallBreakLOCA (SBLOCA)peak cladding temperature(PCT)forthisreportingperiod.The SBLOCA 10CFR50.46PCTlimitof2200 o fwasnot exceeded,andthe SBLOCAPCTrema inedboundedbythe LBLOCA PCT.Table3LimitingSmallBreakLOCAPCT Unit2Unit3LimitingSmallBreak LOCA PCT End 0'2009 2,077 of 2 ,077 o f ChangesinPCT during 2010dueto:a)Model changesorModelerrors*Cycle15*°of*Cycle16°of**b)Cycle Dependent Input Changes*Cycle15*°of*Cycle16°of**LimitingSmallBreak LOCA PCT End 0'2010 2,077 of 2,077 o f***Un it2operatedonlyunderCycle16in2010
,hencenoinputforthisentry
.Unit3operatedonlyunderCycle15in2010
,hencenoinputforthisentry. ,Page4o f 5 The cumulative10CFR50.46modelchangesandmodele rrorsfortheSmallBreakLOCAS2MEvaluationModelareshowninTable4.
Table 4 Cumulative Small Break LOCA10CFR50.46 Model ChangesandModelErrors r 1 L1 PCTI (2)Unit2 Unit3 Cumulative SBLOCA10CFR50.46Mo del ChangesandModelErro rs Priorto2010 o o f o o f Changes in SBLOCAPCTduetoModelChangesandModelErrorsDuring2010Cycle15*o o f**Cycle16 o o f**Cumu lative SBLOCA10CFR50.46Model ChangesandModelErrors End of 2010 o o f o o f***Unit2opera ted only underCycle16 in2010 ,henceno inputforth is en try.Uni t 3 operated only underCycle15in2010
,henceno inputfort his entry.Enclosure 2 ,Page5of5 (2)Sumof the absolute magnitude o fthe10CFR50.46model changes and modelerrors.