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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:Technical Specification
MONTHYEARML23311A2042023-10-0909 October 2023 Annual Submittal of Technical Specification Bases Changes Pursuant to Technical Specification 5.5.13.d ML23153A1732023-06-16016 June 2023 Correction to Amendment Nos. 346 & 286 Millstone, 294 & 277 North Anna, 311 & 311 Surry, and 225 Summer to Revise Technical Specifications to Adopt TSTF-554,Rev Reactor Coolant Leakage Requirement ML22303A0192022-10-0909 October 2022 Annual Submittal of Technical Specification Bases Changes Pursuant to Technical Specification 5.5.13.d ML22095A1072022-07-11011 July 2022 Issuance of Amendment Nos. 120, 344, & 284, 293 & 276, & 307 & 307 to Relocate Requirements to the QAPD ML21294A3382021-10-21021 October 2021 Proposed Amendment to Relocate Unit Staff Qualification Requirements from Technical Specifications to Nuclear Facility Quality . ML21252A5142021-09-0909 September 2021 Application to Revise Technical Specifications to Adopt TSTF-577, Revised Frequencies for Steam Generator Tube Inspections, Rev 1, Using the Consolidated Line Item Improvement Process ML18198A1182018-07-12012 July 2018 Transmittal of Proposed License Amendment Request (LAR) Addition of Analytical Methodology to COLR Small Break Loss of Coolant Accident (SBLOCA) ML18031A2272018-02-0606 February 2018 Enclosurenewed License SNM-2507 Technical Specifications (Letter to D. G. Stoddard Issuance of Renewed Materials License No. SNM-2507 for the North Anna Power Station ISFSI) ML17291A3362017-10-12012 October 2017 Technical Specification Bases Changes ML17291A3252017-10-12012 October 2017 Annual Submittal of Technical Specification Bases Changes Pursuant to Technical Specifications 5.5.13.d ML16288A1202016-10-0404 October 2016 Annual Submittal of Technical Specification Bases Changes Pursuant to Technical Specification 5.5.13.d ML16288A1412016-10-0404 October 2016 Technical Specification Bases ML15289A3892015-10-0202 October 2015 Technical Specification Bases ML13302B8932013-10-0202 October 2013 Annual Submittal of Technical Specification Bases Changes Pursuant to Technical Specification 5.5.13.D ML12321A1042012-10-0505 October 2012 Technical Specifications Bases ML11298A2162011-10-0808 October 2011 Technical Specifications Bases ML1111900932011-04-27027 April 2011 License Amendment Request for Adoption of Technical Specification Task Force (TSTF)-513, Revision 3, Revise PWR Operability Requirements and Actions for RCS Leakage Instrumentation. ML1029402882010-10-0909 October 2010 Technical Specifications Bases Changes ML1012605172010-05-0606 May 2010 Proposed License Amendments and Exemption Request for Use of Optimized Zirlo Fuel Rod Cladding ML1009001672010-03-30030 March 2010 Marked-Up Technical Specification Bases Page Changes ML0929403352009-10-0909 October 2009 Annual Submittal of Technical Specifications Bases Changes Pursuant to Technical Specification 5.5.13.d ML0929405932009-10-0909 October 2009 Technical Specifications Bases, Revision 41 ML0927304682009-09-28028 September 2009 Proposed License Amendment Request, TS 3.7.12 - ECCS Pump Room Exhaust Air Cleanup System (Preacs) Addition of Conditions/Action Statements ML0902102792009-01-15015 January 2009 Proposed License Amendment Request TS 3.7.12 - ECCS Pump Room Exhaust Air Cleanup System (Preacs) Addition of Conditions/Action Statements ML0835309822008-12-17017 December 2008 Proposed License Amendment Request Adoption of TSTF-490, Revision 0, Regarding Deletion of E Bar Definition and Revision to RCS Specific Activity Using the Consolidated Line Item Improvement Process ML0808003642008-03-19019 March 2008 Proposed License Amendment Request Deletion of TS 3.7.13 - Main Control Room/Emergency Switchgear Room Bottled Air System from Technical Specifications ML0707406732007-03-13013 March 2007 Units, 1 and 2, Tech Spec Pages for Amendments 250 and 230 Regarding Technical Specification Changes Per Generic Safety Issue (GSI) 191 ML0628501952006-10-0303 October 2006 Proposed Technical Specification Change and Supporting Safety Analyses Revisions to Address Generic Safety Issue 191 ML0618602252006-06-30030 June 2006 Technical Specifications Bases Change for Diesel Fuel Oil Testing Program Technical Specification Change ML0614300622006-05-22022 May 2006 Proposed License Amendment Request Consolidated Line Item Improvement Process Technical Specification Improvement Regarding Steam Generator Tube Integrity ML0530800502005-11-0303 November 2005 Proposed Emergency Technical Specification Change One Time Extension of the Completion Time for the Low Head Safety Injection (Lhsi) Train a ML0529103882005-10-12012 October 2005 Technical Specification Bases Changes ML0508901012005-03-22022 March 2005 Tech Spec Pages for Amendments 238 & 219 Elimination of Requirements for Hydrogen Recombiners and Hydrogen Monitors Using the Consolidated Line Item Improvement Process ML0429300512004-10-12012 October 2004 Technical Specifications Bases for North Anna Units 1 & 2 ML0426002902004-09-15015 September 2004 Proposed Technical Specifications Change Administrative Controls Changes ML0424401692004-08-30030 August 2004 Proposed Technical Changes to Extend Inspection Interval for Reactor Coolant Pump Flywheels Using Consolidated Line Item Improvement Process ML0419502772004-07-0101 July 2004 Proposed Technical Specifications Change Request Reactor Coolant System Pressure/Temperature Limits Ltops Setpoints and Ltops Enable Temperatures ML0414001142004-05-12012 May 2004 Tech Spec Page for Amendments 235 & 217 Regarding Extended Inverter Allowed Outage Time ML0409800302004-03-30030 March 2004 Proposed Technical Specification Changes Implementation of Alternate Source Term Request for Additional Information Containment Spray Systems Iodine Removal ML0407106842004-03-0404 March 2004 Proposed Technical Specification Changes Regarding Deletion of Note for Performance of Cot ML0326708212003-09-12012 September 2003 Proposed Technical Specification Changes Implementation of Alternative Source Term ML0316814212003-06-11011 June 2003 Proposed TS Changes Use of Realistic LBLOCA & Small Break LOCA Methodology for Analysis of Framatome Advanced Mark-BW Fuel ML0314101032003-05-0909 May 2003 Technical Specification Bases Changes ML0232504192002-11-14014 November 2002 Correction to Technical Specifications Bases Page Issued with Amendments 232 & 214 ML0224601552002-08-20020 August 2002 Technical Specification Bases Changes ML0207803972002-03-18018 March 2002 Correction & Clarification to Facility Operating License Amendment No. 230 ML0207003112002-02-22022 February 2002 Part 3 of 10, North Anna Power Station, Units 1 & 2, Proposed Improved Technical Specifications Comments on Draft Safety Evaluation, Certified Improved Technical Specifications (ITS) & Bases & Proposed License Conditions, Technical Specific ML0207002822002-02-22022 February 2002 Part 2 of 10, North Anna Power Station, Units 1 & 2, Proposed Imposed Technical Specifications Comments on Draft Safety Evaluation, Certified Improved Technical Specifications (ITS) & Bases & Proposed License Conditions, Bases ML0207002312002-02-22022 February 2002 Part 1 of 10, North Anna Power Station, Units 1 & 2 Proposed Improved Technical Specifications Comments on Draft Safety Evaluation, Certified Improved Technical Specifications (ITS) & Bases & Proposed License Conditions ML0207003302002-02-22022 February 2002 Part 4 of 10, North Anna Power Station, Units 1 & 2, Proposed Improved Technical Specifications Comments on Draft Safety Evaluation, Certified Improved Technical Specifications (ITS) & Bases & Proposed License Conditions, B.3.3 Instrumentat 2023-06-16
[Table view] Category:Bases Change
MONTHYEARML23311A2042023-10-0909 October 2023 Annual Submittal of Technical Specification Bases Changes Pursuant to Technical Specification 5.5.13.d ML22303A0192022-10-0909 October 2022 Annual Submittal of Technical Specification Bases Changes Pursuant to Technical Specification 5.5.13.d ML17291A3362017-10-12012 October 2017 Technical Specification Bases Changes ML17291A3252017-10-12012 October 2017 Annual Submittal of Technical Specification Bases Changes Pursuant to Technical Specifications 5.5.13.d ML16288A1202016-10-0404 October 2016 Annual Submittal of Technical Specification Bases Changes Pursuant to Technical Specification 5.5.13.d ML16288A1412016-10-0404 October 2016 Technical Specification Bases ML15289A3892015-10-0202 October 2015 Technical Specification Bases ML13302B8932013-10-0202 October 2013 Annual Submittal of Technical Specification Bases Changes Pursuant to Technical Specification 5.5.13.D ML12321A1042012-10-0505 October 2012 Technical Specifications Bases ML11298A2162011-10-0808 October 2011 Technical Specifications Bases ML1111900932011-04-27027 April 2011 License Amendment Request for Adoption of Technical Specification Task Force (TSTF)-513, Revision 3, Revise PWR Operability Requirements and Actions for RCS Leakage Instrumentation. ML1029402882010-10-0909 October 2010 Technical Specifications Bases Changes ML1009001672010-03-30030 March 2010 Marked-Up Technical Specification Bases Page Changes ML0929403352009-10-0909 October 2009 Annual Submittal of Technical Specifications Bases Changes Pursuant to Technical Specification 5.5.13.d ML0929405932009-10-0909 October 2009 Technical Specifications Bases, Revision 41 ML0618602252006-06-30030 June 2006 Technical Specifications Bases Change for Diesel Fuel Oil Testing Program Technical Specification Change ML0614300622006-05-22022 May 2006 Proposed License Amendment Request Consolidated Line Item Improvement Process Technical Specification Improvement Regarding Steam Generator Tube Integrity ML0530800502005-11-0303 November 2005 Proposed Emergency Technical Specification Change One Time Extension of the Completion Time for the Low Head Safety Injection (Lhsi) Train a ML0529103882005-10-12012 October 2005 Technical Specification Bases Changes ML0429300512004-10-12012 October 2004 Technical Specifications Bases for North Anna Units 1 & 2 ML0424401692004-08-30030 August 2004 Proposed Technical Changes to Extend Inspection Interval for Reactor Coolant Pump Flywheels Using Consolidated Line Item Improvement Process ML0409800302004-03-30030 March 2004 Proposed Technical Specification Changes Implementation of Alternate Source Term Request for Additional Information Containment Spray Systems Iodine Removal ML0407106842004-03-0404 March 2004 Proposed Technical Specification Changes Regarding Deletion of Note for Performance of Cot ML0314101032003-05-0909 May 2003 Technical Specification Bases Changes ML0232504192002-11-14014 November 2002 Correction to Technical Specifications Bases Page Issued with Amendments 232 & 214 ML0224601552002-08-20020 August 2002 Technical Specification Bases Changes 2023-10-09
[Table view] |
Text
VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 October 2, 2013 U.S. Nuclear Regulatory Commission Serial No.13-518 Attention: Document Control Desk NAPS/JHL 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 I AND 2 ANNUAL SUBMITTAL OF TECHNICAL SPECIFICATION BASES CHANGES PURSUANT TO TECHNICAL SPECIFICATION 5.5.13.d Pursuant to Technical Specifications 5.5.13.d, "Technical Specifications (TS) Bases Control Program," Dominion hereby submits the changes to the Bases of the Technical Specifications implemented during the period of October 1, 2012 through September 30, 2013. A summary of these changes is provided in Attachment 1. Enclosed is an electronic copy (CD) of the entire TS Bases through Revision 51 for your information.
Bases changes to the Technical Specifications that were not previously submitted to the NRC as part of a License Amendment Request were reviewed and approved by the Facility Safety Review Committee. It was determined that these changes did not require a change to the Technical Specifications or license, or involve a change to the UFSAR or Bases that required NRC prior approval pursuant to 10CFR50.59. These changes have been incorporated into the TS Bases. A summary of these Bases changes is provided in Attachment 1.
TS Bases changes that were submitted to the NRC for information along with the associated License Amendment Request transmittals, submitted pursuant to 10CFR50.90, were also reviewed and approved by the Facility Safety Review Committee. These changes have been implemented with the respective License Amendments. A summary of these changes is provided in Attachment 2.
If you have any questions regarding this submittal, please contact Mr. Page Kemp at (540) 894-2295.
Sincerely, David B. Blakeney Director, Nuclear Safety and Licensing A40D
Attachments
- 1. Summary of TS Bases Changes Not Previously Submitted to the NRC
- 2. Summary of TS Bases Changes Associated with License Amendments Enclosure - CD of Current TS Bases (Revision 51)
Commitments made in this letter: None cc: U.S. Nuclear Regulatory Commission Region I!
Marquis One Tower 245 Peachtree Center Avenue, NE, Suite 1200 Atlanta, Georgia 30303-1257 Mr. J. E. Reasor, Jr. (without Enclosure)
Old Dominion Electric Cooperative Innsbrook Corporate Center 4201 Dominion Blvd.
Suite 300 Glen Allen, Virginia 23060 State Health Commissioner (without Enclosure)
Virginia Department of Health James Madison Building - 7 th Floor 109 Governor Street Room 730 Richmond, Virginia 23219 Dr, V. Sreenivas NRC Project Manager U. S. Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike Mail Stop 08 G-9A Rockville, Maryland 20852-2738 Ms. K. R. Cotton NRC Project Manager U. S. Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike Mail Stop 08 G-9A Rockville, Maryland 20852-2738 NRC Senior Resident Inspector (without Enclosure)
North Anna Power Station
ATTACHMENT I
SUMMARY
OF TS BASES CHANGES NOT PREVIOUSLY SUBMITTED TO THE NRC Virginia Electric and Power Company (Dominion)
North Anna Power Station Units I and 2
Summary of TS Bases Changes Not Previously Submitted to the NRC Implementation of ETE-NAF-2013-0047, Revised Steam Generator Tube Rupture (SGTR) Event Analysis Technical Specification (TS) Bases 3.7.10 Main Control Room/Emergency Switchgear Room Emergency Ventilation System (MCRIESGR EVS) is revised to maintain consistency with the UFSAR. ETE-NAF-2013-0047 Revision 0, Implementation of the revised NAPS Steam Generator Tube Rupture (SGTR) event analysis (RA-0031-1-0 and SM-1637-1-0), including 50.59 Evaluation No.
13-SE-OT-03, and proposed UFSAR Change Request No. UCR-2012-028, were previously approved by the Facility Safety Review Committee.
The Applicable Safety Analysis discussion in the bases of TS 3.7.10 describes that the MCR/ESGR EVS is credited in the Loss of Coolant Accident (LOCA).
The bases was revised as follows:
"The SGTR analysis assumes MCR/ESGR envelope isolation occurs. An unfiltered MCRPESGR inleakage of 250 cfm is assumed, with filtered makeup air of 900 cfm commencing at 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />."
The discussion also indicates that the Fuel Handling Accident credits isolation of the control room, but that the other design basis accidents do not.
Engineering Technical Evaluation ETE-NAF-2013-0047 implements the new Steam Generator Tube Rupture (SGTR) event analysis documented in calculation RA-0031-1-0. RA-0031-1-0 documents the doses in the NAPS control room, at the exclusion area boundary (EAB), and at the low population zone (LPZ) as a result of a SGTR accident using the RADTRAD-NAI computer code. RA-0031-1-0 bases its calculations on the alternative source term (AST) methodologies that have been previously approved in accordance with Regulatory Guide 1.183, and incorporates a revised SG Power Operated Relief Valve (PORV) flow capacity. The previous design and licensing basis analyses conservatively did not credit control room isolation, although isolation will occur following a Safety Injection (SI) signal generated from this event. Under the provisions of 10 CFR 50.59, the control room isolation that occurs automatically may be credited in the SGTR analysis.
ATTACHMENT 2
SUMMARY
OF TS BASES CHANGES ASSOCIATED WITH LICENSE AMENDMENTS Virginia Electric and Power Company (Dominion)
North Anna Power Station Units I and 2
Summary of TS Bases Changes Associated with License Amendments Elimination of Steam Generator Water Level Low Coincident with Steam Flow/Feedwater Flow Mismatch Reactor Trip Function The amendments eliminate the Steam Generator Water Level Low Coincident with Steam Flow/Feedwater Flow Mismatch Reactor Trip Function from Technical Specification (TS) Table 3.3.1-1, Item 15. A Steam Generator narrow range level Median Signal Selector (MSS) was installed in the North Anna Unit 2 feedwater control system which addresses control/protection channel interactions consistent with IEEE-271, 1979. A similar change is being made on North Anna Unit 1 during the fall 2013 refueling outage The TS Bases were revised to delete the discussion on the Steam Generator Water Level Low Coincident with Steam Flow/Feedwater Flow Mismatch Reactor Trip Function for North Anna Unit 2 and add a functional description of the MSS as it relates to the Steam Generator Water Level-Low Low reactor trip function in TS Table 3.3.1-1, Item 14.
The Bases changes noted above were submitted to the NRC by Dominion submittals dated April 2, 2012 and August 6, 2012 and incorporated into the Bases for North Anna Unit 2 on April 22, 2013 upon NRC approval and implementation of the associated Technical Specification changes (Amendments 268 for Unit 1 and 249 for Unit 2 issued on November 20, 2012).
Revisions to Steam Generator Tube Inspection and Reporting as Described in TSTF-510, Revision 2 The amendments revised the steam generator tube inspection and reporting requirements. Specifically, Technical Specification (TS) 3.4.20, Steam Generator Tube Integrity, TS 5.5.8, Steam Generator (SG) Program, and TS 5.6.7, Steam Generator Tube Inspection Report were revised to be consistent with TSTF-510, Revision 2, Revision to Steam Generator Program Inspection Frequencies and Tube Sample Selection.
The TS Bases changes summarize and clarify the purpose of the Technical Specifications.
The Bases changes noted above were submitted to the NRC by Dominion submittals dated July 30, 2012 and December 13, 2012 and incorporated into the Bases for North Anna Units 1 and 2 on March 27, 2013 upon NRC approval and implementation of the associated Technical Specifications (Amendments 269 and 250 for North Anna Units 1 and 2 issued on January 28, 2013).
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