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MONTHYEARML1207501092012-03-15015 March 2012 Notice of Meeting with Tennessee Valley Authority to Discuss Pre-submittal Planning for Licensing Basis Change Regarding Hydrology for Watts Bar Nuclear Plant, Unit 1 Project stage: Request ML12097A3122012-03-29029 March 2012 3/29/2012 Meeting Slides - Pre-Submittal Meeting Regarding Watts Bar Unit 1 Hydrology Licensing Basis Change Project stage: Meeting ML12097A3062012-04-11011 April 2012 3/29/2012 Summary of Pre-Application Meeting with Tennessee Valley Authority on Changing the Licensing Basis for Hydrologic Engineering Project stage: Meeting ML12236A1672012-07-19019 July 2012 Application to Revise Watts Bar Nuclear Plant, Unit 1 Updated Final Safety Analysis Report Regarding Changes to Hydrologic Analysis, TAC No. ME8200 (WBN-UFSAR-12-01) Project stage: Request ML12226A5612012-08-10010 August 2012 Application to Revise Sequoyah Nuclear Plant Units I and 2 Updated Final Safety Analysis Report Regarding Changes to Hydrologic Analysis, (SQN-TS-12-02) Project stage: Request ML12226A5622012-08-10010 August 2012 Enclosure 1, Evaluation of Proposed Changes Attachment 1 Proposed SQN Units 1 and 2 UFSAR Text Changes (Markups), Page 2.4-1 Through 2.4-41 Project stage: Request ML12226A5632012-08-10010 August 2012 Enclosure 1, Evaluation of Proposed Changes Attachment 1 Proposed SQN Units 1 and 2 UFSAR Text Changes (Markups), Page 2.4-42 Through Enclosure 2 Project stage: Request ML12276A3752012-10-0101 October 2012 Notification of Completion of Review of Updated Hydrologic Analysis Results for Impact on Watts Bar Nuclear Plant (WBN) Units 1 and 2 Final Environmental Statements Project stage: Other ML12292A3962012-10-19019 October 2012 Forthcoming Meeting with Tennessee Valley Authority Regarding Hydrology Issues Project stage: Request ML12319A1722012-11-14014 November 2012 Meeting Notice with Tennessee Valley Authority to Discuss Hydrology Issues at Watts Bar Nuclear Plant, Unit 1 Project stage: Request ML12348A2082012-12-13013 December 2012 Meeting Slides Re TVA Hydrology Update Slides Project stage: Request ML13010A1372013-01-11011 January 2013 Summary of Meeting with TVA Regarding Hydrology Updates Project stage: Request ML13037A3262013-01-31031 January 2013 Submittal Date for Supplement to Application to Revise Updated Final Safety Analysis Report Regarding Changes to Hydrologic Analysis (WBN-UFSAR-12-01) Project stage: Supplement CNL-14-026, Transmittal of Supplemental Clarification Information for the Application to Revise Updated Final Safety Analysis Report Regarding Changes to Hydrologic Analysis, TAC No. ME8200 (WBN-UFSAR-12-01)2014-02-28028 February 2014 Transmittal of Supplemental Clarification Information for the Application to Revise Updated Final Safety Analysis Report Regarding Changes to Hydrologic Analysis, TAC No. ME8200 (WBN-UFSAR-12-01) Project stage: Supplement 2012-03-29
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Category:Meeting Summary
MONTHYEARML24173A2122024-06-27027 June 2024 Summary of Public Meeting with Tennessee Valley Authority to Discuss a Proposed License Amendment Request Regarding Adoption of TSTF-276-A, Revision 2 to Clarify Requirements for Diesel Generator Testing ML24158A3002024-06-11011 June 2024 Summary of May 6, 2024, Public Meeting with Tennessee Valley Authority to Discuss the Potential for a License Amendment Request Regarding the Control Room Envelope and Selective Use of an Alternative Source Term ML24008A1592024-01-18018 January 2024 Summary of December 13, 2023, Meeting with Tennessee Valley Authority Regarding a Proposed Change to the Tennessee Valley Authority Nuclear Quality Assurance Plan ML23304A0682023-11-0606 November 2023 Summary of October 24, 2023, Public Mtg W/Tennessee Valley Authority Regarding Proposed License Amendment Request for Watts Bar Nuclear Plant, Units 1 and 2, and Sequoyah Nuclear Plant, Units 1 and 2 to Revise Function 5, Turbine Trip and F ML23265A1512023-09-28028 September 2023 Summary of September 12, 2023, Partially Closed Meeting with Tennessee Valley Authority to Discuss Proposed License Amendment Request ML23198A3102023-07-20020 July 2023 July 10, 2023, Summary of Public Meeting with Tennessee Valley Authority Regarding Proposed License Amendment Request for Watts Bar Nuclear Plant, Units 1 and 2 ML23142A2132023-05-22022 May 2023 Public Meeting Summary - 2022 Annual Assessment Meetings for Browns Ferry, Sequoyah and Watts Bar Nuclear Plants ML23068A1532023-03-16016 March 2023 Summary of February 22, 2023, Meeting with Tennessee Valley Authority Regarding Proposed License Amendment Request to Increase Allowable Number of Tritium Producing Burnable Absorber Rods at Watts Bar Nuclear Plant, Units 1 and 2 ML23055A4562023-03-0909 March 2023 Summary of February 15, 2023, Public Meeting with Tennessee Valley Authority Regarding Proposed Expedited License Amendment Request for Watts Bar Nuclear Plant, Units 1 and 2 ML22329A1382022-12-0505 December 2022 Summary of Meeting with Tennessee Valley Authority Related to Planned Alternative Request WBN-2-ISI-01 for Watts Bar Nuclear Plant, Unit 2 ML22168A1642022-06-27027 June 2022 Summary of June 9, 2022, Meeting with TVA Regarding a Proposed License Amendment Request Related to Low Temperature Overpressure System and Cold Overpressure Mitigation System for Sequoyah and Watts Bar Nuclear Plants ML22104A2252022-04-20020 April 2022 Summary of Meeting with Tennessee Valley Authority Regarding a Proposed Exemption Request for Watts Bar Nuclear Plant, Unit 2 ML22109A0042022-04-20020 April 2022 Summary of Meeting with Tennessee Valley Authority Regarding a Proposed Alternative Request Related to Testing of the Motor-Driven Auxiliary Feedwater Pumps at Sequoyah and Watts Bar Nuclear Plants ML22108A1842022-04-18018 April 2022 TVA 2021 Annual Assessment Public Meeting Summary ML22042B3262022-02-14014 February 2022 Summary of February 8, 2022, Meeting with Tennessee Valley Authority Regarding a Proposed License Amendment Request to Revise the Allowable Value for Trip of Turbine-Driven Main Feedwater Pump at Watts Bar Nuclear Plant, Unit 1 ML22025A3112022-02-0909 February 2022 Summary of January 19, 2022, Meeting with Tennessee Valley Authority Regarding a Proposed Schedule for Development of a License Amendment Request for Increased Tritium Production ML21349A3642022-01-0404 January 2022 Summary of December 14, 2021, Teleconference with Tennessee Valley Authority Regarding a Proposed Change to the Capsule Withdrawal Schedule for Watts Bar Nuclear Plant, Unit 2 ML21291A0092021-11-0303 November 2021 Tennessee Valley Authority Fleet - Summary of October 13, 2021, Teleconference with Tennessee Valley Authority to Discuss Planned License Amendment Requests Related to the Emergency Action Level Scheme ML21279A0902021-11-0303 November 2021 Summary of Conference Calls Regarding the Fall 2021, Mid-Cycle Steam Generator Tube Inspections ML21245A4252021-09-15015 September 2021 Summary of August 19, 2021, Teleconference with Tennessee Valley Authority Regarding Planned License Amendment Request Related to the Watts Bar Nuclear Plant, Units 1 and 2 ML21253A0872021-09-15015 September 2021 Summary of August 19, 2021, Partially Closed Meeting with Tennessee Valley Authority to Discuss Mid-Cycle Outage Contingencies for Watts Bar Nuclear Plant, Unit 2 ML21165A1482021-06-30030 June 2021 Summary of Closed Meeting with Tennessee Valley Authority to Discuss Planned Requests for Exemption from Certain Requirements of 10 CFR Part 37 ML21137A0022021-05-17017 May 2021 Public Meeting Summary - Browns Ferry, Sequoyah and Watts Bar Nuclear Plants, Docket Nos. 50-259, 50-260, 50-296, 50-327, 50-328, 50-390, and 50-391, Meeting Number 20210392 ML21120A2192021-05-0404 May 2021 April 28,2021, Summary of Meeting with Tennessee Valley Authority Related to a Planned License Amendment Request for Watts Bar Nuclear Plant, Units 1 and 2, to Remove from Technical Specifications Redundant Units of Measurement for Control ML21099A2072021-04-13013 April 2021 Summary of April 7, 2021, Meeting with Tennessee Valley Authority Related to a Planned Relief Request from ASME Code Testing Requirements ML21060B0532021-03-0303 March 2021 Summary of February 11, 2021, Meeting with Tennessee Valley Authority Related to a Planned License Amendment Request for Watts Bar Nuclear Plant, Unit 2, to Apply a Temperature Adjusted Steam Generator Tube Flaw Growth Rate Methodology ML21033A5952021-02-23023 February 2021 Summary of Teleconference with Tennessee Valley Authority Regarding Planned License Amendment Requests Related to the Watts Bar Nuclear Plant, Unit 2 Steam Generator Replacement ML20357A0092021-01-19019 January 2021 Summary of December 17, 2020, Teleconference with Tennessee Valley Authority Regarding Planned License Amendment Request Related to Use of Alternate Probability of Detection at Watts Bar Nuclear Plant, Unit 2 ML20351A4212021-01-19019 January 2021 Summary of Teleconference with Tennessee Valley Authority Regarding Planned License Amendment Requests Related to the Watts Bar, Unit 2, Steam Generator Replacement ML20351A2192021-01-11011 January 2021 Summary of Conference Calls Regarding the Fall 2020 Steam Generator Tube Inspections ML20337A0402020-12-15015 December 2020 Summary of November 17, 2020, Teleconference with Tennessee Valley Authority Regarding Planned License Amendment Request for Technical Specification 5.9.9, Steam Generator Tube Inspection Report ML20323A0662020-11-27027 November 2020 Summary of October 28, 2020, Teleconference with Tennessee Valley Authority Regarding Planned License Amendment Request for Technical Specification Surveillance Requirement 3.6.15.4, Shield Building ML20244A1892020-09-11011 September 2020 Summary of Teleconference Call with Tennessee Valley Authority Regarding a Proposed Change to the Containment Leakage Rate Testing Program ML20213C7112020-08-25025 August 2020 Summary of July 28, 2020, Teleconference Call with Tennessee Valley Authority Regarding a Planned Alternative Request for Watts Bar Nuclear Plant, Unit 1 ML20233A8352020-08-25025 August 2020 Summary of August 11, 2020, Teleconference Call with Tennessee Valley Authority Regarding a Planned License Amendment Request for Watts Bar Nuclear Plant, Units 1 and 2 ML20175A8012020-08-11011 August 2020 Summary of June 23, 2020, Public Meeting with Tennessee Valley Authority to Discuss a Planned License Amendment ML20211L8222020-08-10010 August 2020 Summary of Teleconference Call with the Tennessee Valley Authority Regarding a Planned License Amendment Request for Watts Bar Nuclear Plant, Unit 1 ML20150A4162020-06-24024 June 2020 Summary of May 28, 2020, Teleconference Call with Tennessee Valley Authority Regarding a Planned License Amendment Request for Watts Bar Nuclear Plant, Unit 1 ML20153A3622020-06-22022 June 2020 Summary of May 27, 2020, Teleconference Call with Tennessee Valley Authority Regarding a Planned License Amendment Request for Watts Bar Nuclear Plant, Units 1 and 2 ML20143A1692020-05-28028 May 2020 Summary of May 14, 2020, Teleconference Call with Tennessee Valley Authority Regarding a Planned License Amendment Request for Watts Bar Nuclear Plant, Unit 2 ML20135H2702020-05-28028 May 2020 Summary of May 5, 2020, Teleconference Call with Tennessee Valley Authority Regarding a Planned License Amendment Request for Watts Bar Nuclear Plant, Units 1 and 2 ML20127H8412020-05-0606 May 2020 Public Meeting Summary - Browns Ferry, Sequoyah and Watts Bar Nuclear Plant, Meeting No. 20200384 ML20034F5232020-02-12012 February 2020 Summary of Meeting with Tennessee Valley Authority Regarding Planned License Amendment Request for Watts Bar Nuclear Plant, Units 1 and 2 ML19347D1592020-01-0707 January 2020 Summary of December 12, 2019, Meeting with Northern States Power Co., Doing Business as Xcel Energy, and Tennessee Valley Authority Planned License Amendment Requests for Prairie Island, Units 2 and 2, and Watts Bar, Units 1 and 2 ML19296B6642019-11-0707 November 2019 Summary of Pre-Application Meeting with TVA Regarding a Planned License Amendment Request to Revise Technical Specification 3.6.15 Condition B and Surveillance Requirement 3.6.15.1 at Watts Bar Nuclear Plant ML19301A4762019-11-0707 November 2019 Summary of Pre-Application Meeting with Tennessee Valley Authority Regarding Planned License Amendment Request to Remove Technical Specification Requirement to Surveil Automatic Transfer (EPID L-2019-LRM-0038 ML19294A3082019-10-28028 October 2019 Summary of July 18, 2019, Pre-Application Meeting with Tennessee Valley Authority Planned License Amendment Request for Approval to Implement a Measurement Uncertainty Recapture Power Uprate ML19284A3532019-10-28028 October 2019 Summary of October 10, 2019, Meeting with Tennessee Valley Authority Regarding a Planned License Amendment Request for Watts Bar Nuclear Plant, Units 1 and 2 ML19253A6732019-09-17017 September 2019 Summary of Closed Meeting with Tennessee Valley Authority to Discuss a Planned License Amendment for Watts Bar Nuclear Plant, Units 1 and 2 ML19255H5522019-09-12012 September 2019 August 27, 2019, Summary of Public Meeting - Tennessee Valley Safety Conscious Work Environment Update at Watts Bar, Docket 50-390 and 50-391 2024-06-27
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 April 11, 2012 LICENSEE:
Tennessee Valley Authority FACILITY:
Watts Bar Nuclear Plant, Unit 1
SUBJECT:
SUMMARY
OF MARCH 29,2012, PRE-APPLICATION MEETING WITH TENNESSEE VALLEY AUTHORITY ON CHANGING THE LICENSING BASIS FOR HYDROLOGIC ENGINEERING (TAC NO. ME8200) On March 29, 2012, a Category 1 public meeting was held between the U.S. Nuclear Regulatory Commission (NRC) and representatives of the Tennessee Valley Authority (TVA) at NRC Headquarters, One White Flint North, 11555 Rockville Pike, Rockville, Maryland.
The purpose of the meeting was to discuss TVA's planned submittal of a license amendment request to revise the licensing and design basis for hydrologic engineering as described in the Watts Bar Nuclear Plant (WBN), Unit 1 Updated Final Safety Analysis Report (UFSAR). A list of attendees is enclosed.
The licensee presented information on the background and content of the proposed request (see Agencywide Documents Access and Management System (ADAMS) Accession No. ML12097A312, public version).
The licensee described its proposed technical changes to UFSAR Section 2.4, "Hydrologic Engineering," and other subsections.
The original probable maximum flood (PMF) level at WBN was 738.1 feet, as reviewed and approved by the NRC in the UFSAR. In 1998, based on a revised flood analysis following several changes to dams upstream of WBN and changes to the assumptions about which dams would fail in certain events, TVA used the process in Title 10 of the Code of Federal Regulations, Section 50.59 to lower the PMF level in the UFSAR to 734.9 feet. The net effect of the revision was to lower predicted flood levels at WBN for all postulated flood and combination seismic/flood events. Based on a revised flood analysis in 2009, which used updated historical flood information and hydrologic models, TVA now proposes to revise the hydrologic engineering design basis, including the PMF level, which would also conform the WBN Unit 1 design basis to the design basis proposed for WBN Unit 2 in FSAR Amendment 108. The proposed new PMF level is 738.8 feet. The licensee stated that the proposed revision was also based on changes in river operations that were made in 2004. The changes had not been fully evaluated at that time, so the effect on PMF level was not recognized until the 2009 revised flood analysis.
TVA also noted (1) that it had not yet completed analysis of recently identified potential Watts Bar reservoir overflow areas that could raise the new PMF level an additional 0.2 feet, (2) potential impacts from Order EA-12-049 related to Fukushima-Dai-ichi, and (3) potential impacts from any Chickamauga lock modifications, which were not included in the revised analysis since they are not funded up to 2016.
-The NRC staff queried TVA about several aspects of the proposed changes and recommended that TVA consider addressing the following issues in its submittal: The chronology and basis for the changes made to the hydrologic engineering design basis from 1995 to 1998 to 2009. An update of the status of TVA's resolution of long-term hydrology issues, per the staffs request in the NRC letter dated January 25, 2012. The relationship and use of the 25-year flood level versus the May 2003 flood level in TVA's new analysis. The justification for the proposed combinations of dam failure scenarios used in TVA's new analysis. The purpose of the finite element analysis on the Fontana Dam. Discuss whether approvals for the dam and river operations modifications are required from other agencies (e.g., U.S. Army Corps of Engineers). Discuss the overall uncertainties in TVA's revised analysis calculations. Justification for the use of any compensatory measures as a result of TVA's revised analysis. Discuss the temporary modification to the thermal barrier booster pump flood barrier protection in the UFSAR. 10. Discuss any impact on TVA's individual plant examination of external events or final environmental impact statement due to the revised flood analysis.
- 11. Discuss whether any flood barriers at the plant are impacted by the revised PMF level. 12. Discuss the use and control of sand baskets (e.g., at the WBN recreational area). 13. Discuss the impact on any safety-related equipment other than the thermal barrier booster pumps. 14. Discuss the impact of TVA's five proposed combinations of dam failure scenarios within its revised flood analysis.
TVA acknowledged the NRC staff's questions and comments and stated that they would be considered as the licensee continues to prepare its submittal.
No regulatory decisions were made at the meeting. A member of the public was in attendance by telephone.
Public Meeting Feedback forms were not received.
-Please direct any inquiries to me at 301-415-2296, or Carl F. Lyon, Project Manager Watts Bar Special Projects Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No.
List of cc w/encl: Distribution via LIST OF MARCH 29,2012, PRE-APPLICATION MEETING WITH TENNESSEE VALLEY ON CHANGING THE LICENSING BASIS FOR HYDROLOGIC ENGINEERING WATTS BAR NUCLEAR PLANT. UNIT G. Arent J.Shea G. Watkins R. Cole P. Gaillard P. Selman* T. Morgan* L. Raghavan P. Milano S. Campbell J. Poole M. Murphy J. Gwo* S.Lingam S. Shaeffer*
E. Brown R. Monk* R. Haag F. Lyon URS D. Klett* *by telephone Enclosure Please direct any inquiries to me at 301-415-2296, or Fred.Lyon@nrc.gov.
IRA by Patrick Milano forI Carl F. Lyon, Project Manager Watts Bar Special Projects Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No.
List of cc w/encl: Distribution via DISTRIBUTION:
PUBLIC RidsRgn2MailCenter Resource SShaeffer, RII LP-WB Branch Reading TWertz, NRR RHaag, RII RidsAcrsAcnw MailCTR Resource PMilano, NRR EBrown, NRR RidsNrrDorlLp:Wb Resource JPoole. NRR RMonk, RII RidsNrrPMWatts Bar1 Resource LRaghavan, NRR RidsNrrDeEmcb Resource RidsNrrLABClayton Resou rce JGwo, NRR MKotzalas, EDO Region 2 RidsOgcRp Resource SLingam, NRR ADAMS Accession No. PKG ML12097A293.
Meeting Notice ML120750109, Meeting Summary ML Public Handouts ML 12097OFFICE DORULPWB/PM DORULPWB/LA DORULPWB/BC DORULPWB/PM NAME FLyon BClayton SCamp bell (PMilano for) FLyon (PMilano for) DATE 04/11/12 04/11/12 04/11/12 04111112 OFFICIAL RECORD COPY