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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
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10 CFR 50.55a VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 Kay 4, 2009 u.s. Nuclear Regulatory Commission Serial No.09-265 Attention: Document Control Desk NL&OS/ETS RO Washington, D.C. 20555 Docket No. 50-338 License No. NPF-4 VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION)
NORTH ANNA POWER STATION UNIT 1 FOURTH INTERVAL lSI PROGRAM RESPONSE TO REQUEST FOR INFORMATION REGARDING NDE-OOS In a letter dated October 17, 2008 (Serial No. 08-0595), Dominion submitted the North Anna Power Station Unit 1 inservice inspection (lSI) program for the fourth inservice inspection (lSI) interval applicable to Class 1, 2, and 3 components and component supports. The lSI Plan described the programmatic aspects of lSI examinations of components and component supports. Included with the program were requests for alternatives or relief from the specific code requirements in accordance with 10 CFR 50.55a (a)(3)(i) and/or (ii) or 10 CFR 50.55a(g)(5)(iii). In an April 15, 2009 letter the NRC staff requested additional information regarding relief request NDE-005 to complete their review. The attachment to this letter provides the information requested by the NRC staff.
If you have any questions or require additional information, please contact Mr. Thomas Shaub at (804) 273-2763.
- Sincerly,
~
.~
J. an Price
. i e President - Nuclear Engineering Attachment Response to Request for Additional Information Regarding NDE-005 Commitments made in this letter:
- 1. None
Serial No.09-265 Docket No. 50-338 Request for Additional Information NDE-005 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 Ms. D. N. Wright NRC Project Manager U. S. Nuclear Regulatory Commission One White Flint North MaiI Stop 0-8 H4A 11555 Rockville Pike Rockville, Maryland 20852 Mr. J. F. Stang, Jr.
NRC Project Manager U. S. Nuclear Regulatory Commission One White Flint North MaiI Stop 0-8 G9A 11555 Rockville Pike Rockville, Maryland 20852
Serial No.09-265 Docket No. 50-338 ATTACHMENT FOURTH INTERVAL lSI PLAN RESPONSE TO REQUEST FOR INFORMATION REGARDING NDE-005 VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION UNIT 1
Serial No.09-265 Docket No. 50-338 Request for Additional Information Regarding NDE-005
Background
By application dated October 7, 2008 (Agencywide Documents Access and Management System (ADAMS) Accession Number ML082880160), as supplemented by letter dated January 30, 2009 (ADAMS Accession No. ML090330392), Virginia Electric and Power Company (the licensee) submitted the fourth interval inservice inspection (lSI) plan and associated proposed alternatives and relief requests from requirements of Section XI of the American Society of Mechanical Engineers, Boiler and Pressure Vessel Code (ASME Code), for North Anna Power Station Unit No.1.
Specifically, request NDE-005 pertains to six weld overlays that were installed during the third lSI interval. The Nuclear Regulatory Commission (NRC) staff determined that additional information is required to complete the evaluation for the request.
Request NDE-005 is similar to applications the NRC staff has reviewed that requested use of Code Case N-504-2 as conditioned to Section XI, Appendix Q in Regulatory Guide 1.147, "Inservice Inspection Code Case Acceptability, ASME Section XI, Division 1." In accordance with the gUidance, the NRC staff identified missing information in your request and areas in need of clarification. Please address the following questions:
NRC Question 1 Request NDE-005 states in Part A of the alternative that the relief is to continue ISis using procedures and personnel qualified to Appendix VIII, Supplement 11, as modified by Attachment 1 of the submittal. Supplement 11 is for the examination of wrought stainless steel piping and weld overlays. Provide a description of the base material, weld/butter material, and overlay material (wrought or cast stainless steel, Inconel, carbon steel, etc.).
Dominion Response The following materials are included in the base material, weld/butter material, and overlay material:
Nozzles are (P-No. 3 Group No.3) Low Alloy Steel SA-508 CL2
- Safe End-to-Nozzle Weld and buttering are Alloy 82/182 (F-No. 43)
- Safe Ends are (P-No. 8) Wrought Stainless Steel (SS) SA-182 GR F316L Surge Line Pipe, Safety Line Elbows, Relief Line Reducer and Spray Line Pipe are (P-No. 8) Wrought Seamless SS and Welds are SS (A-NO.8)
- Welding of Structural Overlay was performed using ERNiCrFe-7 (Alloy 52) or ERNiCrFe-7A (Alloy 52M)
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Serial No.09-265 Docket No. 50-338 Request for Additional Information Regarding NDE-005 NRC Question 2 The alternative's examination requirements are similar to the examination requirements of Section XI, Appendix Q, for ISis. One of the requirements is for ultrasonic examination of overlays during the first or second refueling outage following installation.
Discuss whether such examinations have been performed or plans to do so in the fourth lSI interval.
Dominion Response During the Unit 1 fall 2007 refueling outage, full structural mitigative PWOLs for the pressurizer safety, spray, relief, and surge nozzles were completed. Examinations of these pressurizer weld overlays were completed during the spring 2009 outage for Unit 1. Examinations in the 4th interval will be completed in accordance with this relief request.
NRC Question 3 Part B, Paragraph (a)(3) of NDE-005 states that, "The inservice examination acceptance standards of Table IWB-3514-2 shall be met for the weld overlay. If the acceptance criteria of Table IWB-3514-2 cannot be met, the acceptance criteria of IWB-3600 shall be met for the weld overlay. Cracks in the outer 25% of the base metal shall meet the design analysis requirements of Attachment 2, Crack Growth and Design." According to MRP-139, "Primary System Piping Butt Weld Inspection and Evaluation Guide," the weld overlay material must be resistant to stress corrosion cracking. As such, similar applications have included the phrase, "Any indication characterized as stress corrosion cracking in the weld overlay material is unacceptable."
Discuss the plans for addressing stress corrosion cracking.
Dominion Response If flaw growth in the weld overlay occurs and the acceptance standards of Table IWB-3514.2 cannot be met, a determination will be made to prove if the flaw is not PWSCC. If the cause is determined to be PWSCC or the cause of the flaw cannot be determined, North Anna will repair the flaw and will not use IWB-3600 of ASME Code,Section XI to accept these types of flaws.
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