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| | number = ML092370646 | | | number = ML092370646 |
| | issue date = 08/24/2009 | | | issue date = 08/24/2009 |
| | title = North Anna Power Station, Units 1 & 2 - Response to Request for Additional Information Reactor Coolant Pressure Boundary Visual Inspections Proposed Alternative - N1-I3-nde-024 and N2-I3-NDE-025 | | | title = Response to Request for Additional Information Reactor Coolant Pressure Boundary Visual Inspections Proposed Alternative - N1-I3-nde-024 and N2-I3-NDE-025 |
| | author name = Hartz L N | | | author name = Hartz L |
| | author affiliation = Virginia Electric & Power Co (VEPCO) | | | author affiliation = Virginia Electric & Power Co (VEPCO) |
| | addressee name = | | | addressee name = |
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| | document type = Letter, Request for Additional Information (RAI) | | | document type = Letter, Request for Additional Information (RAI) |
| | page count = 5 | | | page count = 5 |
| | | project = |
| | | stage = Response to RAI |
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| =Text= | | =Text= |
| {{#Wiki_filter:10CFR50.55a VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261August24,2009U.S.NuclearRegulatoryCommissionAttention:DocumentControlDeskWashington,D.C.20555SerialNo.NL&OS/ETSDocketNos.LicenseNos. | | {{#Wiki_filter:10 CFR 50.55a VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 August 24, 2009 U.S. Nuclear Regulatory Commission Serial No. 09-253A Attention: Document Control Desk NL&OS/ETS RO Washington, D.C. 20555 Docket Nos. 50-338 50-339 License Nos. NPF-4 NPF-7 VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION) |
| 09-253A RO 50-338 50-339 NPF-4 NPF-7 VIRGINIA ELECTRICANDPOWER COMPANY (DOMINION)
| | NORTH ANNA POWER STATION UNITS 1 AND 2 RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION REACTOR COOLANT PRESSURE BOUNDARY VISUAL INSPECTIONS PROPOSED ALTERNATIVE - N1-13-NDE-024 AND N2-13-NDE-025 In a letter dated May 12, 2009 (Serial No. 09-253), Dominion requested approval of an alternative to the inspection requirements of footnote 1 included in 10 CFR50.55a(g)(6)(ii)(E), Reactor Coolant Pressure Boundary Visual Inspections, for North Anna Units 1 and 2. The requested alternative will permit the inspections performed during the Unit 1 fall 2007 and Unit 2 fall 2008 refueling outages on the bottom mounted instrument tubes (8MI) to be used as the initial reactor coolant pressure boundary visual inspection in place of the footnote requirement for the initial inspection to be performed at the next refueling outage after January 1, 2009. The NRC requested additional information in an August 3, 2009 e-mail. The response to the requested information is included in the attachment to this letter. |
| NORTH ANNA POWER STATIONUNITS1AND2 RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION REACTOR COOLANT PRESSURE BOUNDARY VISUAL INSPECTIONS PROPOSED ALTERNATIVE-N1-13-NDE-024ANDN2-13-NDE-025InaletterdatedMay12,2009(SerialNo.09-253),Dominionrequestedapprovalofanalternativetotheinspectionrequirementsoffootnote1includedin 10 CFR50.55a(g)(6)(ii)(E),ReactorCoolantPressure BoundaryVisualInspections, forNorthAnnaUnits1and2.Therequestedalternativewillpermitthe inspectionsperformedduringtheUnit1fall2007andUnit2fall2008refuelingoutagesonthebottommountedinstrumenttubes(8MI)tobeusedastheinitialreactorcoolantpressureboundaryvisualinspectioninplaceofthefootnoterequirementfortheinitialinspectiontobeperformedatthenextrefuelingoutageafterJanuary1,2009.TheNRCrequestedadditionalinformationinanAugust3,2009e-mail.Theresponsetotherequestedinformationisincludedintheattachmenttothisletter.Ifyoushouldhaveanyquestionsregardingthissubmittal,pleasecontactMr.ThomasShaubat(804)273-2763. | | If you should have any questions regarding this submittal, please contact Mr. Thomas Shaub at (804) 273-2763. |
| Sincerely, c.'>:;r-:LeslieN.HartzVicePresident-NuclearSupportServices | | Sincerely, |
| | : c. '>:; r-: |
| | Leslie N. Hartz Vice President - Nuclear Support Services |
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| ==Attachment:== | | ==Attachment:== |
| ResponsetoRequestforAdditionalInformationCommitments.madeinthisletter:None cc:U.S.NuclearRegulatoryCommissionRegionIISamNunn AtlantaFederalCenter 61ForsythStreet,SWSuite23T85 Atlanta, Georgia 30303Mr.J.E.Reasor,Jr.OldDominionElectricCooperative InnsbrookCorporateCenter4201DominionBlvd.Suite300GlenAllen,Virginia23060 NRC SeniorResidentInspectorNorthAnnaPowerStationDr.V.SreenivasNRCProject ManagerU.S.NuclearRegulatoryCommissionOneWhiteFlintNorthMaiIStop 8G9A 11555RockvillePikeRockville,Maryland20852Ms.K.R.CottonNRCProject ManagerU.S.NuclearRegulatoryCommissionOneWhiteFlintNorthMailStop16E1511555RockvillePikeRockville,Maryland20852SerialNo.09-253A Docket Nos.50-338/339 AlternativeforBMI Baseline InspectionsPage2of2 Serial No.09-253ADocketNos.
| | Response to Request for Additional Information Commitments.made in this letter: None |
| 50-338/339 ATTACHMENT RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION REACTOR COOLANT PRESSURE BOUNDARY VISUAL INSPECTIONS PROPOSED ALTERNATIVEN1-13-NDE-024andN2-13-NDE-025 VIRGINIA ELECTRICANDPOWER COMPANY (DOMINION) | | |
| NORTHANNAPOWER STATIONUNITS1AND2 SerialNo.09-253ADocketNos.
| | Serial No. 09-253A Docket Nos. 50-338/339 Alternative for BMI Baseline Inspections Page 2 of 2 cc: U.S. Nuclear Regulatory Commission Region II Sam Nunn Atlanta Federal Center 61 Forsyth Street, SW Suite 23T85 Atlanta, Georgia 30303 Mr. J. E. Reasor, Jr. |
| 50-338/339 Page1of2REQUESTFOR ADDITIONAL INFORMATIONTHIRD10-YEARINSERVICE INSPECTION INTERVAL REQUESTSFORRELIEFNOS.N1-13-NDE-024AND N2-13-NDE-025 VIRGINIAELECTRICANDPOWER COMPANY NORTH ANNA POWER STATION.UNITS1AND2DOCKETNUMBERS 50-338 AND 50-339 BackgroundTheAmericanSocietyofMechanicalEngineers(ASME)CodeofrecordfortheNorthAnnaPowerStation(NAPS),Unit1third10-yearintervalinserviceinspectionprogramisthe1989EditionnoAddendaofAmericanSocietyofMechanicalEngineers(ASME)Code,SectionXIandforNAPS,Unit2itisthe1995EditionoftheASMECode,SectionXIthroughthe1996Addenda.ByletterdatedMay12,2009,VirginiaElectricandPowerCompany(Dominion)submitteditsthird10-yearintervalinserviceinspection(lSI)programplanRequestsforReliefNos.N1-13-NDE-024and N2-13-NDE-025forNAPS,Units1and2,respectively.Dominion'ssubmittalproposedtouseinspectionsthatwereperformedonthereactorbottom-mountedinstrument(BMI)penetrationsduringthefallof2007andfall2008forNAPS,Units1and2,respectively,inplaceoftheinitialinspectionsrequiredbyTitle10oftheCodeofFederalRegulations(10CFR)50.55a(g)(6)(ii)(E).10CFR50.55a(g)(6)(ii)(E)requireslicensees,toimplementASMECodecaseN-722"Additional Examinations for PWRPressureRetainingWeldsinClass 1 Components Fabricated with Alloy 600/82/182 Material."ThestaffreviewedtheinformationDominionprovidedthatsupportstheproposedReliefRequestNos. | | Old Dominion Electric Cooperative Innsbrook Corporate Center 4201 Dominion Blvd. |
| N1-13-NDE-024 and N2-13-NDE-025andrequiredaresponseregardingthefollowingissues: | | Suite 300 Glen Allen, Virginia 23060 NRC Senior Resident Inspector North Anna Power Station Dr. V. Sreenivas NRC Project Manager U. S. Nuclear Regulatory Commission One White Flint North MaiI Stop 8G9A 11555 Rockville Pike Rockville, Maryland 20852 Ms. K. R. Cotton NRC Project Manager U. S. Nuclear Regulatory Commission One White Flint North Mail Stop 16E15 11555 Rockville Pike Rockville, Maryland 20852 |
| NRC Question 1Whatweretheresultsofthelicensee'sinspectionsthatwereperformedonthereactorbottom-mountedinstrumentnozzlepenetrationsduringthefallof2007andfallof2008forNAPS,Units1and2,respectively?Werethereanyindicationsofleakagefound,e.g.,signsofcorrosion,boricacidresidue? | | |
| Dominion ResponseTheBMIpenetrationshavebeeninspectedtwiceoneachunit,mostrecentlyduringthefallof2007andfallof2008forNorthAnnaUnits1and2,respectively.Therehavebeennoindicationsofleakage,nosignsofcorrosionandnoboricacidresiduefoundoneitherunit. | | Serial No. 09-253A Docket Nos. 50-338/339 ATTACHMENT RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION REACTOR COOLANT PRESSURE BOUNDARY VISUAL INSPECTIONS PROPOSED ALTERNATIVE N1-13-NDE-024 and N2-13-NDE-025 VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION) |
| SerialNo.09-253ADocketNos.
| | NORTH ANNA POWER STATION UNITS 1 AND 2 |
| 50-338/339Page2of2 NRC Question 2Onpage3of4inthefirstparagraphofthelicensee'ssubmittaldatedMay12,2009,itwasnotedthatEnclosure1wasthe"ExaminerQualificationandResolutionsRequirements".ItappearstothestaffthatEnclosure1wasasummaryofthe"ExaminerQualificationandResolutionsRequirements"nottheactualdocument.Provideaclarificationortheactualdocument. | | |
| Dominion ResponseAtthetimetheexaminationswereperformed,CodeCaseN-722hadnotbeenissued.ASMECodeCaseN-722includesspecificrequirementsforthevisualexamination(VE)andthequalificationofpersonnelperformingtheVEsofthe 8Mls.Enclosure1tothe Relief RequestwasintendedtobeasummaryofhowDominionmettheserequirementsforthevisualexaminationofthe 8Mls.NRC Question 3Isthesamplesizeandselectionofcomponentsfortheinspectionsperformedinthefallof2007and2008forNAPS,Units1and2,respectively, equivalenttoTable1ofASMECodeCaseN-722? | | Serial No. 09-253A Docket Nos. 50-338/339 Page 1 of 2 REQUEST FOR ADDITIONAL INFORMATION THIRD 10-YEAR INSERVICE INSPECTION INTERVAL REQUESTS FOR RELIEF NOS. N1-13-NDE-024 AND N2-13-NDE-025 VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION. UNITS 1 AND 2 DOCKET NUMBERS 50-338 AND 50-339 |
| Dominion ResponseYes,all8MIpenetrationswereinspectedduringthefall2007andfall2008refuelingoutagesforNorthAnnaUnits1and2,respectively.ThisapproachisconsistentwiththerequirementsofCodeCaseN-722,whichrequiresallpenetrationsbeexamined.}} | | |
| | ===Background=== |
| | The American Society of Mechanical Engineers (ASME) Code of record for the North Anna Power Station (NAPS), Unit 1 third 10-year interval inservice inspection program is the 1989 Edition no Addenda of American Society of Mechanical Engineers (ASME) |
| | Code, Section XI and for NAPS, Unit 2 it is the 1995 Edition of the ASME Code, Section XI through the 1996 Addenda. |
| | By letter dated May 12, 2009, Virginia Electric and Power Company (Dominion) submitted its third 10-year interval inservice inspection (lSI) program plan Requests for Relief Nos. N1-13-NDE-024 and N2-13-NDE-025 for NAPS, Units 1 and 2, respectively. |
| | Dominion's submittal proposed to use inspections that were performed on the reactor bottom-mounted instrument (BMI) penetrations during the fall of 2007 and fall 2008 for NAPS, Units 1 and 2, respectively, in place of the initial inspections required by Title 10 of the Code of Federal Regulations (10 CFR) 50.55a(g)(6)(ii)(E). 10 CFR 50.55a(g)(6)(ii)(E) requires licensees, to implement ASME Code case N-722 "Additional Examinations for PWR Pressure Retaining Welds in Class 1 Components Fabricated with Alloy 600/82/182 Material." |
| | The staff reviewed the information Dominion provided that supports the proposed Relief Request Nos. N1-13-NDE-024 and N2-13-NDE-025 and required a response regarding the following issues: |
| | NRC Question 1 What were the results of the licensee's inspections that were performed on the reactor bottom-mounted instrument nozzle penetrations during the fall of 2007 and fall of 2008 for NAPS, Units 1 and 2, respectively? Were there any indications of leakage found, e.g., signs of corrosion, boric acid residue? |
| | Dominion Response The BMI penetrations have been inspected twice on each unit, most recently during the fall of 2007 and fall of 2008 for North Anna Units 1 and 2, respectively. There have been no indications of leakage, no signs of corrosion and no boric acid residue found on either unit. |
| | |
| | Serial No. 09-253A Docket Nos. 50-338/339 Page 2 of 2 NRC Question 2 On page 3 of 4 in the first paragraph of the licensee's submittal dated May 12, 2009, it was noted that Enclosure 1 was the "Examiner Qualification and Resolutions Requirements". It appears to the staff that Enclosure 1 was a summary of the "Examiner Qualification and Resolutions Requirements" not the actual document. |
| | Provide a clarification or the actual document. |
| | Dominion Response At the time the examinations were performed, Code Case N-722 had not been issued. |
| | ASME Code Case N-722 includes specific requirements for the visual examination (VE) and the qualification of personnel performing the VEs of the 8Mls. Enclosure 1 to the Relief Request was intended to be a summary of how Dominion met these requirements for the visual examination of the 8Mls. |
| | NRC Question 3 Is the sample size and selection of components for the inspections performed in the fall of 2007 and 2008 for NAPS, Units 1 and 2, respectively, equivalent to Table 1 of ASME Code Case N-722? |
| | Dominion Response Yes, all 8MI penetrations were inspected during the fall 2007 and fall 2008 refueling outages for North Anna Units 1 and 2, respectively. This approach is consistent with the requirements of Code Case N-722, which requires all penetrations be examined.}} |
Letter Sequence Response to RAI |
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MONTHYEARML0913206392009-05-12012 May 2009 Reactor Coolant Pressure Boundary Visual Inspections Proposed Alternative - N1-I3-NDE-024 and N2-I3-NDE-025 Project stage: Request ML0916204232009-06-11011 June 2009 Unit 2, N1-13-NDE-024 and N2-13-NDE-025: Acceptance of Requested Licensing Action Relief Request-Reactor Coolant Pressure Boundary Visual Inspection Project stage: Acceptance Review ML0923706462009-08-24024 August 2009 Response to Request for Additional Information Reactor Coolant Pressure Boundary Visual Inspections Proposed Alternative - N1-I3-nde-024 and N2-I3-NDE-025 Project stage: Response to RAI ML0927902102009-10-0909 October 2009 Third 10-Year Interval Inservice Inspection Program, Reactor Coolant Pressure Boundary Visual Inspections - N1-I3-NDE-024 and N2-I3-NDE-025 Project stage: Other 2009-05-12
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Category:Letter
MONTHYEARML24032A1112024-02-0101 February 2024 Owner'S Activity Report for North Anna, Unit 2, Refueling Outage N2R29 - First Period of the Fifth ISI Interval ML24032A4662024-01-16016 January 2024 Response to Comments on Draft Vpdes Permit No. VA0052451 ML24017A0802024-01-11011 January 2024 Notification of Licensed Operator Initial Examination 05000338/2024301 and 05000339/2024301 ML24003A8372024-01-0909 January 2024 Letter to Elizabeth Toombs, Thpo, Cherokee Nation, Notice of Availability of the Draft Site-Specific EIS for North Anna Power Station, Units 1 and 2, Subsequent License Renewal ML24003A8412024-01-0909 January 2024 Notice of Availability of the Draft Site-Specific Environmental Impact Statement for the North Anna Power Station, Units 1 and 2, Subsequent License Renewal ML24003A8502024-01-0909 January 2024 Letter to Wenonah Haire, Thpo, Catawba Indian Nation, Notice of Availability of the Draft Site-Specific EIS for North Anna Power Station, Units 1 and 2, Subsequent License Renewal ML23332A7272024-01-0909 January 2024 Notice of Availability of the Draft Site-Specific Environmental Impact Statement for the North Anna Power Station, Units 1 and 2, Subsequent License Renewal ML24003A8382024-01-0909 January 2024 Letter to G. Anne Richardson, Chief, Rappahannock Tribe, Inc., Notice of Availability of Draft Site-Specific Environmental Impact Statement for North Anna Power Station Units 1 and 2, Subsequent License Renewal ML24003A8482024-01-0909 January 2024 Notice of Availability of the Draft Site-Specific Environmental Impact Statement for the North Anna Power Station, Units 1 and 2, Subsequent License Renewal ML24003A8392024-01-0909 January 2024 Letter to Gerald Stewart, Chief, Chickahominy Indian Tribe, Eastern Division Re Re Notice of Availability of the Draft Site-Specific Environmental Impact Statement for North Anna Power Station Subsequent License Renewal ML24003A8472024-01-0909 January 2024 Letter to Tom Jonathan, Chief, Tuscarora Nation, Notice of Availability of the Draft Site-Specific EIS for North Anna Power Station, Units 1 and 2, Subsequent License Renewal ML24003A8492024-01-0909 January 2024 Letter to W. Frank Adams, Chief, Upper Mattaponi Tribe Re Re Notice of Availability of the Draft Site-Specific Environmental Impact Statement for North Anna Power Station Subsequent License Renewal ML24003A8462024-01-0909 January 2024 Notice of Availability of the Draft Site-Specific Environmental Impact Statement for the North Anna Power Station, Units 1 and 2, Subsequent License Renewal ML24003A8352024-01-0909 January 2024 Letter to Acee Watt, Thpo, United Keetoowah Band of Cherokee Indians in Oklahoma Re Notice of Availability of the Draft Site-Specific Environmental Impact Statement for North Anna Power Station Subsequent License Renewal ML24003A8422024-01-0909 January 2024 Letter to Paul Barton, Thpo, Eastern Shawnee Tribe of Oklahoma, Notice of Availability of Draft Site-Specific Environmental Impact Statement for North Anna Power Station Units 1 and 2, Subsequent License Renewal ML24003A8432024-01-0909 January 2024 Letter to Robert Gray, Chief, Pamunkey Indian Tribe, Notice of Availability of the Draft Site-Specific EIS for North Anna Power Station, Units 1 and 2, Subsequent License Renewal ML24003A8362024-01-0909 January 2024 Notice of Availability of the Draft Site-Specific Environmental Impact Statement for the North Anna Power Station, Units 1 and 2, Subsequent License Renewal ML24003A8442024-01-0909 January 2024 Letter to Russell Townsend, Thpo, Eastern Band of Cherokee Indians ML24003A8402024-01-0909 January 2024 Letter to Katelyn Lucas, Thpo, Delaware Nation, Oklahoma, Notice of Availability of Draft Site-Specific Environmental Impact Statement for North Anna Power Station Units 1 and 2, Subsequent License Renewal ML24003A8452024-01-0909 January 2024 Letter to Stephen Adkins, Chief, Chickahominy Indian Tribe, Notice of Availability of Draft Site-Specific Environmental Impact Statement for North Anna Power Station Units 1 and 2, Subsequent License Renewal ML23332A1852024-01-0404 January 2024 Notice of Availability of the Draft Site-Specific Environmental Impact Statement for the North Anna Power Station, Units 1 and 2, Subsequent License Renewal ML23332A0872024-01-0404 January 2024 Notice of Availability of the Draft Site-Specific Environmental Impact Statement for the North Anna Power Station, Units 1 and 2, Subsequent License Renewal ML23360A6352024-01-0404 January 2024 Letter to Dominion Availability for North Anna Units 1 and 2 Draft Site Specific Environmental Impact Statement ML23332A1472023-12-21021 December 2023 Issuance of Environmental Scoping Summary Report Associated with the Staff'S Review of the North Anna Power Station, Units 1 and 2, Subsequent License Renewal Application ML23283A3052023-12-20020 December 2023 Review of Appendix F to DOM-NAF2, Qualification of the Framatome ORFEO-GAIA and ORFEO-NMGRID CHF Correlations in the Dominion Energy VIPRE-D Computer Code (EPID L-2022-LLT-0003) (Nonproprietary) ML23346A0972023-12-11011 December 2023 License Amendment Request to Revise the Emergency Plan Relocation of the Technical Support Center - Response to NRC Request for Additional Information ML23346A1022023-12-11011 December 2023 2024 North Anna Power Station Brq Inspection Notification Letter ML24012A0942023-12-0707 December 2023 GL Report from Dominion Virginia Power Regarding Transfer of Devices ML24012A0892023-12-0707 December 2023 GL Registration from Dominion Virginia Power ML23334A2432023-11-30030 November 2023 Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation ML23362A0602023-11-29029 November 2023 ISFSI, Submittal of Cask Registration for Spent Fuel Storage IR 05000339/20234022023-11-27027 November 2023 Security Baseline Inspection Report 05000338 and 05000339/2023402 IR 05000338/20230032023-11-13013 November 2023 Integrated Inspection Report 05000338/2023003 and 05000339/2023003 ML23311A2042023-10-0909 October 2023 Annual Submittal of Technical Specification Bases Changes Pursuant to Technical Specification 5.5.13.d IR 05000338/20234032023-10-0505 October 2023 Reissue - North Anna Power Station - Cyber Security Inspection Report 05000338/2023403 and 05000339/2023403 (Cover Letter) ML23279A0612023-10-0505 October 2023 Paragon Energy Solutions LLC, Part 21 Final Report Re Potential Defect with Eaton Jd and Hjd Series Molded Case Circuit Breakers (Mccbs) ML23230A0502023-10-0202 October 2023 5 of the Quality Assurance Topical Report - Review of Program Changes ML23275A0992023-09-28028 September 2023 Subsequent License Renewal Application Third 10 CFR 54.21(b) Annual Amendment IR 05000338/20230112023-09-26026 September 2023 Quadrennial Focused Engineering Inspection Commercial Grade Dedication Report 05000338/2023011 and 05000339/2023011 ML23242A3482023-09-11011 September 2023 Cyber Security Inspection Report 05000338/2023403 and 05000339/2023403 - Cover ML23254A0242023-09-0606 September 2023 Paragon Energy Solutions LLC, Potential Defect with Eaton Jd and Hjd Series Molded Case Circuit Breakers (Mccbs) ML23249A2592023-09-0606 September 2023 Core Operating Limits Report Cycle 30, Pattern Ukr, Revision 0 ML23214A2022023-09-0505 September 2023 Staff Assessment of Updated Seismic Hazards Following the NRC Process for the Ongoing Assessment of Natural Hazards Information 2024-02-01
[Table view] Category:Request for Additional Information (RAI)
MONTHYEARML23318A1172023-11-13013 November 2023 NRR E-mail Capture - Formal Issuance of RAIs for North Anna Technical Support Center (TSC) License Amendment Request (LAR) (L-2023-LLA-0006) ML23257A2092023-09-14014 September 2023 NRR E-mail Capture - Formal Issuance of 2nd Round RAIs for Surry Units 1&2 and North Anna Units 1&2 Emergency Plans LAR ML23243A9862023-08-31031 August 2023 NRR E-mail Capture - Draft RAIs for EP Staff Augmentation Times LAR (L-2022-LLA-0166) ML23219A1602023-08-0707 August 2023 003 Radiation Safety Baseline Inspection Information Request ML23171B0522023-06-20020 June 2023 NRR E-mail Capture - RAI for Review of Appendix F to DOM-NAF-2-P (Redacted) ML23081A5282023-04-26026 April 2023 Request for Additional Information - North Anna Subsequent License Renewal Application Environmental Review ML23075A0232023-03-15015 March 2023 NRR E-mail Capture - RAI - License Amend Req (LAR) to Revise Tech Spec (Ts) 3.6.8 Limiting Condition for Operation to Remove Refueling Water Chemical Addition Tank and Replace the Containment Sump Buffer North Anna, 1 and 2 (L-2022-LLA-0162 ML23060A0932023-03-0101 March 2023 NRR E-mail Capture - Formal Issuance of RAIs for Surry/North Anna Emergency Plans LAR ML23059A2282023-02-28028 February 2023 NRR E-mail Capture - Draft RAIs for Containment Buffer Change to Natb (L-2022-LLA-0162) ML22251A1292022-09-0909 September 2022 Request for Additional Information Related to Response to Generic Letter 2004-04 ML22242A0452022-08-23023 August 2022 NRR E-mail Capture - Dominion GL 04-02 Response Draft RAIs (L-2017-LRC-0000) ML22083A2102022-03-24024 March 2022 NRR E-mail Capture - Draft RAI - Relief Request N2-14-LMT-003 Fourth Ten Year Inservice Inspection Interval ML21327A3652021-11-23023 November 2021 NRR E-mail Capture - Draft RAI for TSTF-577 LAR ML21322A0962021-11-18018 November 2021 Final Request for Additional Information Set 5 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Email ML21322A0992021-11-18018 November 2021 Final Request for Additional Information Set 5 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Enclosure ML21256A0672021-09-13013 September 2021 Final Request for Confirmation of Information Set 2 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Email ML21256A0692021-09-13013 September 2021 Final Request for Confirmation of Information Set 2 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Request for Confirmation of Information ML21238A0942021-08-25025 August 2021 Draft Request for Additional Information Set Z - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Email ML21238A0982021-08-25025 August 2021 Draft Request for Additional Information Set Z - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Enclosure ML21225A5022021-08-13013 August 2021 Request for Additional Information for North Anna Power Station, Units 1 and 2, Surry Power Station, Units 1 and 2, and Millstone Power Station, Units 2 and 3, Appendix E of Fleet Report Com-Naf-2 (EPID:L02021-LLT-0000) Public Version ML21195A2442021-07-13013 July 2021 NRR E-mail Capture - Draft RAI Appendix E to Topical Report DOM-NAF-2 Qualification of the Framatome BWU-I CHF Correlation in the Dominion Energy VIPRE-D Computer Code ML21188A1632021-07-0707 July 2021 Final Request for Additional Information Set 4 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Email ML21188A1652021-07-0707 July 2021 Final Request for Additional Information Set 4 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Enclosure ML21174A1952021-06-23023 June 2021 Safety RAIs - Set Y - Draft - Enclosure ML21166A3512021-06-15015 June 2021 Safety RAIs - Set 4 - Draft ML21123A2972021-05-0303 May 2021 Final Request for Additional Information Set 3 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - E-mail ML21123A2982021-05-0303 May 2021 Final Request for Additional Information Set 3 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Enclosure ML21091A0032021-04-0101 April 2021 Final Request for Additional Information Set 2 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Enclosure 1 - RAIs ML21091A0042021-04-0101 April 2021 SLRA Safety Review - Withdrawn Requests for Information (EPID No. L-2020-SLR-0000) - Enclosure 2 ML21076A4622021-03-17017 March 2021 NRR E-mail Capture - Draft RAI for Versatile Internals and Component Program for Reactors Vipre Code Review (L-2021-LLT-0000) ML21075A0032021-03-12012 March 2021 Emergency Preparedness Exercise Inspection Request for Information for - Brunswick, Catawba, North Anna, Oconee, Vogtle 1 & 2 ML21063A5602021-03-0404 March 2021 Final Request for Additional Information Set 1 - North Anna SLRA Safety Review (EPID L-2020-SLR-0000) - Enclosure ML21049A0212021-02-17017 February 2021 Notification of an NRC Fire Protection Team Inspection (FPTI) (NRC Inspection Report 05000338/2021012 and 05000339/2021012) and Request for Information (RFI) ML21028A3902021-01-29029 January 2021 Request for Additional Information - North Anna Subsequent License Renewal Application Environmental Review (EPID Number: L-2020-SLE-0000) (Docket: 50-338 and 50-339) ML21028A4352021-01-28028 January 2021 Notification of Target Set Inspection and Request for Information (NRC Inspection Report No. 05000338/2021404 and 05000339/2021404) ML21012A3412021-01-22022 January 2021 Requests for Confirmation of Information for the Environmental Review of the North Anna Power Station, Units 1 and 2, Subsequent License Renewal Application (EPID Number: L-2020-SLE-0000) (Docket: 50-338 and 50-339) ML21019A4512021-01-19019 January 2021 Notification of Inspection and Request for Information ML20316A0422020-11-10010 November 2020 NRR E-mail Capture - FW: Draft RAI for North Anna Unit 2 Steam Generator Tube Inspection Report (ML19179A075) ML20223A3412020-08-10010 August 2020 003 Radiation Safety Baseline Inspection Information Request ML20218A4282020-08-0505 August 2020 Notification of Inspection and Request for Information ML20125A0762020-05-0101 May 2020 NRR E-mail Capture - Draft RAI Related to Revised Reactor Vessel Material Surveillance Capsule Withdrawal Schedule Dominion Energy Virginia North Anna Power Station Units 1 and 2 (L-2020-LLL-0038) ML20113A5792020-04-21021 April 2020 NRR E-mail Capture - Draft RAI North Anna Fifth 10-year Interval Relief Request (L-2020-LLR-0023) ML19354B6142019-12-20020 December 2019 NRR E-mail Capture - Draft RAI for North Anna Relief Request P-9 ML19317F1042019-11-0707 November 2019 NRR E-mail Capture - Draft RAIs for SB LOCA LAR (Non Prop) ML19191A2512019-07-10010 July 2019 NRR E-mail Capture - Request for Additional Information Open Phase Condition LAR ML19169A0962019-06-17017 June 2019 NRR E-mail Capture - Request for Additional Information Emergency Action Level Scheme Change for Millstone Power Station - Units 1, 2, and 3, North Anna Power Station - Units 1 and 2, and Surry Power Station - Units 1 and 2 ML19162A0052019-06-10010 June 2019 NRR E-mail Capture - Draft RAIs for Dominion EAL Scheme Change ML19108A1902019-04-18018 April 2019 Emergency Preparedness Program Inspection Request for Information ML19060A2432019-03-0101 March 2019 Related to License Amendment Request to Address Open Phase Conditions ML18337A1312018-11-29029 November 2018 NRR E-mail Capture - North Anna SPRA (Fukushima 50.54f) Audit Follow-Up Clarification Question on Plant Modifications 2023-09-14
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10 CFR 50.55a VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 August 24, 2009 U.S. Nuclear Regulatory Commission Serial No. 09-253A Attention: Document Control Desk NL&OS/ETS RO Washington, D.C. 20555 Docket Nos. 50-338 50-339 License Nos. NPF-4 NPF-7 VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION)
NORTH ANNA POWER STATION UNITS 1 AND 2 RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION REACTOR COOLANT PRESSURE BOUNDARY VISUAL INSPECTIONS PROPOSED ALTERNATIVE - N1-13-NDE-024 AND N2-13-NDE-025 In a letter dated May 12, 2009 (Serial No.09-253), Dominion requested approval of an alternative to the inspection requirements of footnote 1 included in 10 CFR50.55a(g)(6)(ii)(E), Reactor Coolant Pressure Boundary Visual Inspections, for North Anna Units 1 and 2. The requested alternative will permit the inspections performed during the Unit 1 fall 2007 and Unit 2 fall 2008 refueling outages on the bottom mounted instrument tubes (8MI) to be used as the initial reactor coolant pressure boundary visual inspection in place of the footnote requirement for the initial inspection to be performed at the next refueling outage after January 1, 2009. The NRC requested additional information in an August 3, 2009 e-mail. The response to the requested information is included in the attachment to this letter.
If you should have any questions regarding this submittal, please contact Mr. Thomas Shaub at (804) 273-2763.
Sincerely,
- c. '>:; r-:
Leslie N. Hartz Vice President - Nuclear Support Services
Attachment:
Response to Request for Additional Information Commitments.made in this letter: None
Serial No. 09-253A Docket Nos. 50-338/339 Alternative for BMI Baseline Inspections Page 2 of 2 cc: U.S. Nuclear Regulatory Commission Region II Sam Nunn Atlanta Federal Center 61 Forsyth Street, SW Suite 23T85 Atlanta, Georgia 30303 Mr. J. E. Reasor, Jr.
Old Dominion Electric Cooperative Innsbrook Corporate Center 4201 Dominion Blvd.
Suite 300 Glen Allen, Virginia 23060 NRC Senior Resident Inspector North Anna Power Station Dr. V. Sreenivas NRC Project Manager U. S. Nuclear Regulatory Commission One White Flint North MaiI Stop 8G9A 11555 Rockville Pike Rockville, Maryland 20852 Ms. K. R. Cotton NRC Project Manager U. S. Nuclear Regulatory Commission One White Flint North Mail Stop 16E15 11555 Rockville Pike Rockville, Maryland 20852
Serial No. 09-253A Docket Nos. 50-338/339 ATTACHMENT RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION REACTOR COOLANT PRESSURE BOUNDARY VISUAL INSPECTIONS PROPOSED ALTERNATIVE N1-13-NDE-024 and N2-13-NDE-025 VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION)
NORTH ANNA POWER STATION UNITS 1 AND 2
Serial No. 09-253A Docket Nos. 50-338/339 Page 1 of 2 REQUEST FOR ADDITIONAL INFORMATION THIRD 10-YEAR INSERVICE INSPECTION INTERVAL REQUESTS FOR RELIEF NOS. N1-13-NDE-024 AND N2-13-NDE-025 VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION. UNITS 1 AND 2 DOCKET NUMBERS 50-338 AND 50-339
Background
The American Society of Mechanical Engineers (ASME) Code of record for the North Anna Power Station (NAPS), Unit 1 third 10-year interval inservice inspection program is the 1989 Edition no Addenda of American Society of Mechanical Engineers (ASME)
Code,Section XI and for NAPS, Unit 2 it is the 1995 Edition of the ASME Code,Section XI through the 1996 Addenda.
By letter dated May 12, 2009, Virginia Electric and Power Company (Dominion) submitted its third 10-year interval inservice inspection (lSI) program plan Requests for Relief Nos. N1-13-NDE-024 and N2-13-NDE-025 for NAPS, Units 1 and 2, respectively.
Dominion's submittal proposed to use inspections that were performed on the reactor bottom-mounted instrument (BMI) penetrations during the fall of 2007 and fall 2008 for NAPS, Units 1 and 2, respectively, in place of the initial inspections required by Title 10 of the Code of Federal Regulations (10 CFR) 50.55a(g)(6)(ii)(E). 10 CFR 50.55a(g)(6)(ii)(E) requires licensees, to implement ASME Code case N-722 "Additional Examinations for PWR Pressure Retaining Welds in Class 1 Components Fabricated with Alloy 600/82/182 Material."
The staff reviewed the information Dominion provided that supports the proposed Relief Request Nos. N1-13-NDE-024 and N2-13-NDE-025 and required a response regarding the following issues:
NRC Question 1 What were the results of the licensee's inspections that were performed on the reactor bottom-mounted instrument nozzle penetrations during the fall of 2007 and fall of 2008 for NAPS, Units 1 and 2, respectively? Were there any indications of leakage found, e.g., signs of corrosion, boric acid residue?
Dominion Response The BMI penetrations have been inspected twice on each unit, most recently during the fall of 2007 and fall of 2008 for North Anna Units 1 and 2, respectively. There have been no indications of leakage, no signs of corrosion and no boric acid residue found on either unit.
Serial No. 09-253A Docket Nos. 50-338/339 Page 2 of 2 NRC Question 2 On page 3 of 4 in the first paragraph of the licensee's submittal dated May 12, 2009, it was noted that Enclosure 1 was the "Examiner Qualification and Resolutions Requirements". It appears to the staff that Enclosure 1 was a summary of the "Examiner Qualification and Resolutions Requirements" not the actual document.
Provide a clarification or the actual document.
Dominion Response At the time the examinations were performed, Code Case N-722 had not been issued.
ASME Code Case N-722 includes specific requirements for the visual examination (VE) and the qualification of personnel performing the VEs of the 8Mls. Enclosure 1 to the Relief Request was intended to be a summary of how Dominion met these requirements for the visual examination of the 8Mls.
NRC Question 3 Is the sample size and selection of components for the inspections performed in the fall of 2007 and 2008 for NAPS, Units 1 and 2, respectively, equivalent to Table 1 of ASME Code Case N-722?
Dominion Response Yes, all 8MI penetrations were inspected during the fall 2007 and fall 2008 refueling outages for North Anna Units 1 and 2, respectively. This approach is consistent with the requirements of Code Case N-722, which requires all penetrations be examined.