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Category:Code Relief or Alternative
MONTHYEARML22196A1972022-07-28028 July 2022 Request for Relief Request N2-I4-LMT-004 Inservice Inspection Limitations ML22019A0022022-03-0808 March 2022 Regarding Request to Utilize Code Case OMN-28 ML20364A0402021-01-15015 January 2021 Request for Relief Request N1-I4-LMT-003 Inservice Inspection Limitations ML19135A3242019-05-21021 May 2019 Inservice Inspection Alternative Request N1-I4-CS-002 ML19092A4172019-04-15015 April 2019 Unit Nos.1 and 2 Inservice Inspection Alternative Requests N1-I5-NDE-001 and N2 I5 NDE 001 ML19039A2362019-02-14014 February 2019 Inservice Inspection Alternative N2-I4-NDE-007 ML18234A1332018-08-15015 August 2018 ASME Section XI Inservice Program Relief Requests N1-15-CMP-001 and N2-15-CMP-001 Proposed Alternative - Use of Paut in Lieu of Rt ML18029A1842018-02-0202 February 2018 Proposed Inservice Inspection Alternatives N1-I4-NDE-010 and N2-I4-NDE-005 (CAC Nos. MF9534 and MF9535; EPID L-2017-LLR-0029) ML18005A1092018-01-10010 January 2018 Relief Request (RR) N1-I4-LMT-002, Limited Coverage Examinations for the Fourth Ten-Year Inspection Interval (CAC No. MF9689; EPID L-2017-LLR-0024) ML17221A2522017-08-17017 August 2017 Proposed Alternative to Implement Code Case N-839 ML17053A2432017-07-21021 July 2017 Relief Request (RR) N1-I4-NDE-008, and N2-I4-NDE-003 Inservice Inspection Program ML17121A0362017-04-24024 April 2017 ASME Section XI Inservice Inspection Program Relief Request N1-I4-LMT-002 - Fourth Interval Period 2 Limited Examinations ML16028A4342016-03-0101 March 2016 Relief Request (RR) N1-I4-SPT-006, Inservice Inspection Program ML15091A6872015-06-25025 June 2015 Relief Request (RR) N2-I4-NDE-002, Inservice Inspection Program ML15023A2192015-02-0303 February 2015 Relief Request (RR) N2-I4-LMT-002, Limited Examinations for the Fourth Ten-Year Inspection Interval Period ML13234A3532013-08-30030 August 2013 Relief Request (RR) N1-I4-LMT-001, Limited Examinations for the Fourth Ten-Year Inspection Interval Period 1 ML12227A7732012-08-17017 August 2012 Relief Request N2-13-PRT-002, Limited Coverage Examinations for the Third 10-Year Inservice Inspection Interval ML11270A1222011-09-21021 September 2011 ASME Section Xl Inservice Inspection Program Relief Request N2-I3-PRT-002 - Limited Coverage Examinations Performed in the Third Ten-Year Inspection Interval ML1102600222011-01-28028 January 2011 Fourth 10-Year Inservice Inspection Interval, Relief Request N2-I4-CS-001 ML1100600112011-01-0707 January 2011 (Naps), Unit No. 1, Third 10-Year Inservice Inspection Interval (ISI) Program, Relief Request (RR) N1-13-PRT-004, Part a Through Part G ML1024602232010-09-30030 September 2010 Fourth 10-Year Interval Inservice Inspection (ISI) Program, Pumps and Valves ML1019303072010-07-12012 July 2010 Request for Relieft N1-13-PRT-004 ML1005604302010-02-23023 February 2010 ASME Section XI Inservice Inspection Program Relief Request N1-14-RI-001 and N2-14-RI-001 Request for Alternative - Implementation of a Risk-Informed Inservice Inspection Program Based on ASME Code Case N-716 ML0910705392009-04-17017 April 2009 Use of Alternative Class 1 Pressure Test Requirements Relief Request SPT-014 ML0814400142008-06-0909 June 2008 Third 10-Year Inservice Inspection Interval Relief Requests CMP-023 and CMP-024 ML0714403422007-08-0303 August 2007 Relief Request to Use Portion of 2001 Edition of American Society of Mechanical Engineers Code ML0604505172006-02-0909 February 2006 Unit No'S. 1 and 2 ASME Code Third 10-year ISI Program. (TAC No'S MC5588, MC5589, MC5590, MC5591, MC5592, MC5593, MC5594, MC5595, MC5599 and MC5600) ML0604405462006-02-0202 February 2006 Relief, Containment Relief Request IWL1 ML0522702752005-08-24024 August 2005 Relief Request, Snubber Visual Examination and Functional Testing (Tac No. MC5451, MC5452) ML0507000502005-03-10010 March 2005 RR, (Tac MC3317) ML0501804952005-01-10010 January 2005 ASME Section XI Inservice Inspection Program, End of Intervals System Pressure Testing ML0412700022004-05-0404 May 2004 Request to Use Code Case N-663 as an Alternative for Surface Examination of ASME Code Class 2 Piping Welds(Tac MC2489, MC2490, MC2491, MC2523 & MC2524) ML0331700242003-10-13013 October 2003 American Society of Mechanical Engineers Boiler and Pressure Vessel Code, Section XI Relief Request CMP-020 ML0326602352003-09-23023 September 2003 N. Anna, Units 1 & 2 - Risk-Informed Inservice Inspection Relief Request R-1 ML0316814082003-06-0505 June 2003 Risk-Informed ISI Relief Requests R-1 Response to Request for Additional Information ML0302303502003-01-23023 January 2003 Relief Request, Repair Technique for Reactor Vessel Head Penetrations ML0301500042003-01-14014 January 2003 Relief Request, ASME Section XI, Inservice Inspection Program, RR-IWE9 for Containment Testing ML0233303662002-11-14014 November 2002 ASME Section XI Inservice Inspection Program Relief Request IWE9 Containment Testing ML0215102442002-05-20020 May 2002 Code Relief Request, Alternative Repair Techniques for Reactor Vessel Heads CMP-16 & CMP-17 ML0213600242002-05-14014 May 2002 ASME Section XI Inservice Inspection (ISI) Program Relief Request Partial-1. Table - North Anna, Unit 2 - Reactor Vessel Outlet Nozzle to Shell Welds 10, 12 & 14 ML0204506472002-02-13013 February 2002 ASME Section XI Inservice Inspection (ISI) Program Relief Request NDE-Partial-2, TAC No. MB1129 2022-07-28
[Table view] 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 April 17,2009 U.S. Nuclear Regulatory Commission Serial No.09-115 Attention: Document Control Desk NL&OS/ETS RO Washington, D.C. 20555 Docket No. 50-339 License No. NPF-7 VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION)
NORTH ANNA POWER STATION UNIT 2 USE OF ALTERNATIVE CLASS 1 PRESSURE TEST REQUIREMENTS RELIEF REQUEST SPT-014 Pursuant to 10 CFR 50.55a(a)(3)(ii), Dominion requests approval to use an alternative to the system hydrostatic pressure test requirements of the American Society of Mechanical Engineers (ASME) Code,Section XI, 1995 Edition with 1996 Addenda, Examination Category B-P, for segments of Class 1 Reactor Coolant Pressure Boundary (RCPB) piping on North Anna Unit 2. The requested alternative will be a visual examination of a segment of the Auxiliary Spray Piping during the Class 1 system pressure test with the valves in the normal position. Relief Request SPT-014 is included in the attachment to this letter.
Dominion requests the use of ASME Code Section XI, Table IWB-2500-1 and IWB 5221 System Leakage Test as an alternative to the hydrostatic test requirements for this piping segment. A visual examination (VT-2) will be performed at nominal operating pressure associated with 100% reactor power after satisfying the ASME Code required hold time. The request for the use of the alternative to the hydrostatic test requirements is pursuant to provisions of 10 CFR 50.55a(a)(3)(ii), in that performing the hydrostatic test creates a hardship without a compensatory increase in the level of quality and safety.
The hydrostatic pressure test requirements associated with the end of the third Inservice Inspection Interval will be performed during the North Anna Unit 2 spring 2010 refueling outage. Consequently, the approval of Relief Request SPT-014 is requested by December 31, 2009 to support the performance of the alternative system hydrostatic pressure test requirements.
Serial No.09-115 Docket No. 50-339 Alternative Requirements for System Pressure Testing Page 2 of 2 If you should have any questions regarding this submittal, please contact Mr. Thomas Shaub at (804) 273-2763.
Sincerely, rice resident - Nuclear Engineering Attachment Relief Request SPT-014 Commitments made in this letter: None 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 Mail Stop 0-8 G9A 11555 Rockville Pike Rockville, Maryland 20852
Serial No.09-115 Docket No. 50-339 USE OF ALTERNATIVE CLASS 1 PRESSURE TEST REQUIREMENTS ALTERNATIVE REQUEST SPT-014 VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION)
NORTH ANNA POWER STATION UNIT 2
10 CFR 50.55a Request Number SPT-014 Alternative Auxili~lry Spray Pressure Test Requirements Proposed Alternative in Accordance with 10 CFR 50.55a(a)(3)(ii) Hardship or Unusual Difficulty without cempensannq Increase in Level of Quality or Safety 1.0 ASME CODE COMPONENTS AFFECTED The Code component associated with this request is the Class 1 NPS 2" Auxiliary Spray Piping, which is part of the Reactor Coolant Pressure Boundary (RCPB) that requires a system hydrostatic pressure test once each 1O-year inspection interval.
1.1 Category and System Details:
Code Class: Class 1 System: Chemical and Volume Control System Examination Category: B-P Item Number: B15.50 and B15.70 1.2 Component Descriptions:
NPS 2" Auxiliary Spray Piping Segment Boundary (valve-to-valve) from 2-CH-HCV-2311 to 2-CH-341 Approximate length - 100 feet 2.0 APPLICABLE CODE ElllTION AND ADDENDA North Anna Power Station Unit 2 is currently in the third 10-year lSI Interval which began on December 14, 2001. The Unit 2 ASME Boiler and Pressure Vessel Code (ASME Code) of record for the current interval is the 1995 Edition with 1996 Addenda.
3.0 APPLICABLE CODE REQUIREMENTS All Class 1 RCPB components including the subject pipe segment are required to be pressure tested in accordance with Table IWB-2500-1, Examination Category B-P. A VT-2 visual examination of the auxiliary spray piping is also required in accordance with Table IWB-2500-1, Category B-P, Items B15.50 and B15.70, Note 2 IWB-5222(b). The Code requires that all Class 1 components within the system pressure boundary be pressurized at or near the end of each inspection interval.
10 CFR 50.55a Request Number SPT-014 Alternative Auxiliary Spray Pressure Test Requirements 4.0 REASON FOR REQUEST Pressurizer pressure is maintained via normal pressurizer spray, which uses the Reactor Coolant Pumps (RCP). Normal pressurizer spray is controlled by the pressurizer Pressure Control System which automatically controls the pressurizer environment. The primary purpose of the auxiliary spray line is for pressure control when the RCPs are not running (i.e.,
during a post accident condition when it is desired to decrease Reactor Coolant System (RCS) pressure). Operation of the auxiliary spray line at hot standby or power would lead to an unnecessary plant transient. To meet Code requirements the normally closed upstream isolation valve 2-CH-HCV-2311 must be opened to pressurize the subject pipe segment.
Water in this line is supplied from the Charging System which operates at a pressure slightly greater than the RCS normal operating pressure.
Therefore, opening of valve 2-CH-HCV-2311 at hot standby or power would increase pressurizer spray flow which will cause an adverse reduction in RCS pressure. In addition, this piping segment is at containment ambient temperature and with the RCS at normal operating temperature, this test would create a thermal shock transient in the spray piping and spray nozzle.
5.0 PROPOSED ALTERNATIVES AND BASIS FOR USE The RCPB pipe segment described in this request is a portion of the auxiliary pressurizer spray line, which is not normally pressurized. This request proposes to perform an ASME Code Section XI, Table IWB-2500-1 and IWB-5221 system leakage test with the isolation valve 2-CH-HCV-2311 in the normally closed position as an alternative to the hydrostatic test requirements for this piping segment. This examination will be performed at nominal operating pressure associated with 100% reactor power after satisfying the ASME Code required hold time.
Testing of this piping segment at full RCS operating pressure does not provide a compensating increase in the level of quality or safety for the following reasons:
- 1. The design pressure rating of this piping segment is the same as the RCPB; however, the operating pressure of the piping segment is well below the normal RCS operating pressure.
- 2. This segment is isolated from the RCS pressure under normal operating conditions.
- 3. This segment is subject to ASME Code required VT-2 visual examination. This examination is performed with the segment isolated from the RCS and the RCS at its normal operating pressure and ternperature. This examination is performed each refueling
10 CFR 50.55a Request Number SPT-014 Alternative Auxiliary Spray Pressure Test Requirements outage and is sufficient to identify any structural defects that could potentially chatlenqe the integrity of the segment during normal operation.
Virginia Electric and Power Company (Dominion) has determined that compliance with the hydrostatic test requirements for this piping segment for North Anna Power Station Unit 2 results in an unnecessary hardship and adverse impact to plant equipment without a sufficient compensating increase in the level of quality and safety. Therefore, Dominion requests approval of this alternative pursuant to the provisions of 10 CFR 50.55a(a)(3)(ii).
6.0 DURATION OF PROPOSED ALTERNATIVE The proposed alternative to the ASME Code is applicable for the remainder of the third 10-year Inservice Inspection (lSI) Interval at NAPS Unit 2. This alternative will be used during the system leakage test conducted at or near the end of the third inspection interval.
7.0 PRECEDENTS Similar alternatives to the hydrostatic test requirements of ASME Code Section XI have been approved for Indian Point Units 2 and 3 and Kewaunee Power Station. The differences in the Code requirements taken to establish the basis for the approval of this request result in the same approved objective of not pressurizing test portions of the Class 1 RCPB to full RCS pressure when a thermal transient would occur. The safety evaluations for the precedents cited are below.
- 1. Indian Point Generating Units 2 and 3, dated December 7, 2005 (ADAMS Accession No. ML053110525).
- 2. Kewaunee Power Station, dated February 18, 2005 (ADAMS Accession No. ML050350225).
8.0 REFERENCES
- 1. 1995 Edition, ASME Code,Section XI, with the 1996 Addenda.
9.0 ATTACHMENTS
- 1. Flow/Valve Operating Numbers Diagrams 12050-FM-095C, Sheet 1 12050-FM-093B, Sheet 1
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