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MONTHYEARML22305A5952022-11-0101 November 2022 Pre-Application Teleconference Meeting with Constellation Energy Generation, LLC to Discuss Planned License Amendment Requests for Nine Mile Point Nuclear Station, Unit No. 1 Project stage: Meeting ML22305A5922022-11-0303 November 2022 Pre-Submittal Meeting Presentation Slides - Risk Informed Completion Time (TSTF-505) and Risk Informed Categorization and Treatmentof SSCs (10 CFR 50.69) Proposed License Amendments-Updated Project stage: Meeting ML22301A0132022-11-0303 November 2022 Pre-Submittal Meeting Presentation Slides - Risk Informed Completion Time (TSTF-505) and Risk Informed Categorization and Treatmentof SSCs (10 CFR 50.69) Proposed License Amendments Project stage: Meeting ML22346A0002022-12-14014 December 2022 Summary of November 3, 2022, Meeting with Constellation to Discuss Planned License Amendment Requests to Adopt TSTF-505 and 10 CFR 50.69 Project stage: Meeting 2022-11-03
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Category:Meeting Summary
MONTHYEARML24351A0822024-12-19019 December 2024 Summary of November 7, 2024, Meeting with Constellation Energy Generation on Planned Alternative Requests Regarding Reactor Vessel Closure Studs (L-2024-LRM-0114) ML24155A1992024-06-0303 June 2024 Annual Assessment Meeting for Pa/Md/Ny/Nj Nuclear Power Plants - NRC Meeting Summary ML24128A2512024-05-14014 May 2024 Summary of April 11, 2024, Public Meeting with Constellation Energy Generation, LLC Regarding Proposed Alternative to Implement American Society of Mechanical Engineers Operation and Maintenance Code Case OMN-32 ML24113A2872024-04-25025 April 2024 Summary of Public Meeting with Constellation Energy Generation, LLC Regarding Hooded Masks ML24032A0862024-02-0202 February 2024 Summary of Meeting with Constellation Energy Generation, LLC, on Planned Requests to Use Code Case N-932 ML23320A2472023-11-17017 November 2023 Constellation - Summary of November 14, 2023, Public Pre-Application Meeting with Constellation Energy Generation, LLC on Adoption of TSTF-591 ML23271A2682023-10-0505 October 2023 September 25, 2023, Summary of with Constellation Energy Generation, LLC on Proposed Changes to Emergency Plans ML23263B1062023-09-22022 September 2023 R. E. Ginna Nuclear Power Plant - Constellation - Pre-Application Amse 9/18/2023 Meeting Summary ML23179A0012023-06-28028 June 2023 6/7/2023 - Annual Assessment Meeting for Pa/Md/Ny/Nj Nuclear Power Plants - Meeting Summary ML23055A0352023-03-24024 March 2023 Summary of February 23, 2023, with Constellation Energy Generation, LLC on Proposed Changes to Emergency Plans to Revise Emergency Action Levels ML22346A0002022-12-14014 December 2022 Summary of November 3, 2022, Meeting with Constellation to Discuss Planned License Amendment Requests to Adopt TSTF-505 and 10 CFR 50.69 ML22187A1462022-07-0606 July 2022 Joint Annual Assessment Meeting for Pa/Md/Nj/Ny Nuclear Power Plants - Meeting Summary ML21333A1532021-11-30030 November 2021 Summary of November 16, 2021, Meeting with Exelon Generation Company, LLC Regarding a Planned Request for an Alternative to Extend the Inservice Inspection Interval ML21237A0412021-08-30030 August 2021 Summary of the July 27, 2021, Meeting with Exelon Generation Company, LLC Regarding a Planned Request to Use Case OMN-28, ML21176A0822021-07-0606 July 2021 June 15, 2021, Summary of Meeting with Exelon Generation Company, LLC Vessel Nozzle Repair Related to a Planned Request for an Alternative Related to Reactor Pressure ML21139A1852021-06-22022 June 2021 Summary of Meeting with Exelon Generation Company, LLC Regarding Its Requested Alternative to Eliminate Certain Documentation Requirements for the Replacement of Pressure Retaining Bolting ML21033A6252021-02-16016 February 2021 Summary of January 5, 2021, Meeting with Exelon Generation Company, LLC Regarding License Amendment Request to Adopt Reactor Pressure Vessel Water Inventory Control Enhancements at Nine Mile Point Nuclear Station, Unit 1 ML21011A2822021-01-21021 January 2021 Summary of January 6, 2021, Presubmittal Meeting Between the NRC and Exelon Generation Company, LLC Regarding Licensing Activities to Support the Planned Early Closures of Byron, Unit Nos. 1 and 2 and Dresden, Units 2 and 3 ML20351A2832020-12-18018 December 2020 Summary of Meeting with Exelon Generation Company, LLC Regarding a Planned Request for an Exemption to Reduce the Frequency of Updates to Its Inservice Testing and Inspection Programs ML20342A3522020-12-10010 December 2020 Summary of November 13, 2020, Meeting with Exelon Generation Company, LLC Regarding a Planned Request for an Alterantive to Certain Documentation Requirements for the Replacement of Pressure Retaining Bolting (EPID-L-2020-LRM-0102) ML20323A0332020-12-0101 December 2020 Summary of November 4, 2020, Meeting with Exelon Generation Company, LLC Regarding a Planned Request for an Alternative to Reduce the Frequency of Updates to Its Inservice Testing and Inspection Programs ML20230A0222020-08-20020 August 2020 Summary of August 6, 2020, Meeting with Exelon Generation Company, LLC Planned Submittal of a License Amendment Request and Alternative Request on Excess Check Valve Testing ML20181A0002020-06-29029 June 2020 Summary of 6/24/20 Meeting with Exelon Generation Company, LLC Regarding Planned Request for Alternative to Supplemental Valve Position Indication Testing Requirements for Braidwood, Calvert Cliffs, Clinton, Limerick, Nine Mile, Peach Botto ML20160A0432020-06-11011 June 2020 Summary of April 9, 2020, Meeting with Exelon Generation Company, LLC Regarding License Amendment Request to Change Allowable Main Steam Isolation Valve Leak Rates at Nine Mile Point Nuclear Station, Unit 2 ML20157A1822020-06-0808 June 2020 Summary of May 8, 2020, Meeting with Exelon Generation Company, LLC, Regarding Proposed Emergency License Amendment Request Involving Control Room Air Treatment System ML19326A3152019-12-0303 December 2019 Summary of November 18, 2019, Meeting with Exelon Generation Company, LLC Regarding a Planned Request for an Alternative to Supplemental Valve Position Indication Testing Requirements ML19326C3582019-12-0303 December 2019 Summary of November 20, 2019, Meeting with Exelon Generation Company, LLC Regarding a Planned Request to Revise the Quality Assurance Program ML19183A2382019-07-19019 July 2019 Summary of Meeting with Exelon Generation Company, LLC, Planned Concurrent Submittal of Risk-Informed Completion Time and Risk-Informed Categorization ML19162A0272019-06-21021 June 2019 Summary of June 4, 2019, Meeting with Exelon Generation Company, LLC Regarding a Planned Request to Extend the Test Interval for Safety Relief Valves ML20108F0902019-04-20020 April 2019 April 15, 2020, Meeting Summary with Exelon Generation Company, LLC Regarding Planned Request to Defer Submittal of Owners Activity Report (Braidwood 2,Byron 2,Calvert Cliffs 1, LaSalle 1, Limerick 1, Nine Mile Point 2, Quad 2, R. E. Ginna) ML19036A8832019-02-0707 February 2019 Summary of Meeting with Exelon Generation Company, LLC Regarding a Planned Request to Use ASME Code Case N-879 ML18354B1712019-01-0202 January 2019 Summary of December 19, 2018, Meeting with Exelon Generation Company, LLC Regarding the Use of Boiling Water Reactor Vessel and Internals Project Guidelines ML18347B4932019-01-0202 January 2019 Summary of Pre-Application Meeting with Exelon Generation Co., LLC (Exelon) Forthcoming License Amendment Requests to Revise Technical Specification Requirements for Main Steam Isolation Valve Leak Rate Tests ML18325A1712018-11-28028 November 2018 Summary of Meeting with Exelon Generation Company, LLC Regarding Planned Fleet License Amendment Request to Revise Technical Specifications for High Radiation Areas ML18297A1722018-10-26026 October 2018 Summary of Meeting with Exelon Generation Company, LLC Regarding Planned License Amendment Request to Adopt TSTF-427 ML18283B7992018-10-15015 October 2018 Summary of Telephone Conference with Exelon Generation Company, LLC, Request to Revise Nine Mile Point Nuclear Station, Unit 1, Technical Specifications with New Requirements on Reactor Pressure Vessel Water Inventory Control ML18262A3662018-09-18018 September 2018 August 21, 2018, James A. Fitzpatrick Nuclear Power Plant (Fitzpatrick) and Nine Mile Point Nuclear Generating Station (Nine Mile Point) Summary of Public Meeting ML18222A2852018-09-0404 September 2018 Summary of Telephone Conf. with Exelon Generation Company, LLC Regarding a Request to Revise Nine Mile Point Nuclear Station, Unit 1 Technical Specifications with New Requirements on Reactor Pressure Vessel Water Inventory Control ML18163A2682018-06-19019 June 2018 Summary of June 5, 2018, Teleconference with Exelon Generation Company, LLC to Discuss Emergency Plan Changes at James A. Fitzpatrick Nuclear Power Plant and Nine Mile Point Nuclear Station ML18120A1772018-05-0101 May 2018 Summary of Meeting with Exelon Generation Company, LLC Regarding Draft Guidance for Emergency Response Organization Staffing ML18065A8362018-03-0707 March 2018 Summary of February 27, 2018, Meeting with Exelon Generation Company, LLC Planned Fleet License Amendment Request to Relocate Staff Qualification Requirements from TSs to the Quality Assurance Topical Report ML18058A5232018-03-0101 March 2018 Summary of February 26, 2018, Meeting with Exelon Generation Company, LLC Regarding Proposed Alternative to the Main Steam Isolation Valve Testing Requirements ML18010A1262018-01-19019 January 2018 Summary of Teleconference with Exelon Generation Company, LLC on Planned Submittal of License Amendment Request Concerning Reactor Pressure Vessel Water Inventory Control ML17328A4422017-12-0505 December 2017 Summary of Teleconference with Exelon Generation Company, LLC on Planned Submittal of License Amendment Request to Remove Boraflex Credit and Use of Cell Blockers ML17297A6292017-10-26026 October 2017 Summary of Meeting with Exelon Generation Company, LLC, on Planned Submittal of License Amendment Request to Remove Boraflex Credit and Use of Cell Blockers ML17184A0092017-07-10010 July 2017 Summary of June 29, 2017, Meeting with Exelon Generation Company, LLC, on Proposed Changes to Emergency Plans to Revise Emergency Action Levels (CAC Nos. MF9779-MF9801) ML17144A2852017-06-0202 June 2017 Summary Teleconference with Exelon Generation Company, LLC, on Planned Submittals of License Amendment Requests to Change Emergency Action Levels Associated with Lake Ontario Water Level ML17143A1902017-05-23023 May 2017 Public Meeting Handouts and Sign in Sheet ML17143A3582017-05-23023 May 2017 Summary of Public Meeting for James A. Fitzpatrick and Nine Mile Point ML17081A0532017-03-27027 March 2017 Summary of March 9, 2017, Meeting with Exelon Generation Company, LLC, Regarding License Amendment Request to Adopt Technical Specification Task Force (TSTF) Traveler TSTF-542 2024-06-03
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1 December 14, 2022 LICENSEE:
Constellation Energy Generation, LLC FACILITY:
Nine Mile Point Nuclear Station, Unit 1
SUBJECT:
SUMMARY
OF NOVEMBER 3, 2022, MEETING WITH CONSTELLATION ENERGY GENERATION, LLC TO DISCUSS PLANNED LICENSE AMENDMENT REQUESTS TO ADOPT TSTF-505, PROVIDE RISK-INFORMED EXTENDED COMPLETION TIMES - RITSTF INITIATIVE 4B, AND 10 CFR 50.69, RISK-INFORMED CATEGORIZATION AND TREATMENT OF STRUCTURES, SYSTEMS AND COMPONENTS FOR NUCLEAR POWER REACTORS, AT NINE MILE POINT NUCLEAR STATION, UNIT 1 (EPID L-2022-LRM-0087)
On November 3, 2022, an observation meeting was held between the U.S. Nuclear Regulatory Commission (NRC) and representatives of Constellation Energy Generation, LLC (CEG, the licensee) via Microsoft TEAMS meeting application. The purpose of the meeting was to discuss the licensees planned license amendment requests (LARs) to adopt Technical Specifications Task Force (TSTF) Traveler TSTF-505, Provide Risk-Informed Extended Completion Times -
RITSTF [Risk-Informed TSTF] Initiative 4b, and Title 10 of the Code of Federal Regulations (10 CFR) Section 50.69, Risk-informed categorization and treatment of structures, systems and components (SCC) for nuclear power reactors, at Nine Mile Point Nuclear Station, Unit 1 (NMP1).
The meeting notice and agenda, dated October 20, 2022, are available in the Agencywide Documents Access and Management System (ADAMS) at Accession No. ML22305A595. A list of attendees is provided as an enclosure to this meeting summary.
The licensee presented information (ML22301A013) regarding its planned license amendment requests (LARs). The licensees presentation included an overview of its planned LARs to adopt risk-informed completion times based on TSTF-505-A, Revision 2, and 10 CFR 50.69 risk-informed categorization of SSCs based on Nuclear Energy Institute 00-04.
The NRC staff queried the licensee throughout the presentation and discussed the following:
The NRC staff noted that one of the licensees listed plant-specific variances from TSTF-505 (on slide 4 of the licensees presentation) was not applicable to the model required actions in NUREG-1433 and to confirm that all proposed variances in the LAR are appropriately applied to the correct NUREG. The licensee indicated that all proposed variations specific to NMP1 are still in final technical review and will be verified prior to submission of the application. The licensee also acknowledged that the high-pressure core spray system is applicable to NUREG-1434 and that the stated variation was in error (i.e., the high-pressure injection system is applicable to NMP1).
In reference to the licensees discussion on fire probabilistic risk assessment (PRA) model technical adequacy, the NRC staff suggested that the application include changes NMP1 made since completing its transition to the National Fire Protection Association (NFPA)
Standard 805, Performance-Based Standard for Fire Protection for Light-Water Reactor Electric Generating Plants. The licensee stated that the model has been peer reviewed to Regulatory Guide 1.200, Revision 2 and the facts and observation (F&O) closure review has been performed. The licensee intends to discuss four open finding F&Os in their submittal.
The NRC staff inquired about the overall steps involved in the licensees proposed seismic penalty method and emphasized the use of plant-specific information in supporting the licensees method. The staff asked whether the penalty factor is a configuration-specific penalty or a general seismic penalty. The licensee explained that the penalty is the same penalty factor applied for other applicable CEG plant applications. Regarding external hazards, extreme wind or tornado/missiles, the licensee explained that they intend to submit a high winds safe shutdown equipment list for the 10 CFR 50.69 application. The licensee also noted that while its screening review for this hazard is still being finalized, the preliminary approach is to apply the progressive screening (PS3) criterion (design basis event mean frequency of less than 1E-5/year and the mean conditional core damage probability is less than 0.1).
The NRC staff inquired about the licensees external hazards screening process for seismic risk and requested that the licensee confirm in their application that while NMP1 may satisfy the EPRI Tier 1 plant criteria, the licensee should confirm in their application that seismic risk is low relative to total risk. The licensee explained that they have looked at relative risk for seismic for NMP1 (similar to the approach they took for Nine Mile Point Nuclear Station, Unit 2) and confirmed that core damage frequency is very low. The licensee indicated that large early release frequency is also low and similar to the results of Clinton Power Station.
Specifically, the licensee explained that the seismic relative risk contribution was comparable to that used for the 10 CFR 50.69 LAR for Clinton, which was recently reviewed and approved by the NRC staff (ML21090A193).
The NRC staff inquired about the licensees FLEX (diverse and flexible mitigation strategies) equipment whether it was credited and requested if credited, to provide description in the LAR. The licensee explained that they do have modeled FLEX components (e.g., portable pumps, portable diesel generators and battery chargers) and intend to provide a detailed explanation of it impacts and of how each is credited in their application.
The staff also asked if the licensee credits other fire PRA methods that may have not been fully updated over the years. The licensee explained that they have included the latest heat release rates and ignition frequencies from the applicable NUREG in their latest fire PRA update.
The licensee stated that it will submit separate applications for TSTF-505 and 10 CFR 50.69.
The licensee expects to submit both LARs by the end of December 2022 and will request approval within 1 year.
Members of the public were not in attendance. No regulatory decisions or commitments were made at the meeting. Public Meeting Feedback forms were not received.
Please direct any inquiries to me at 301-415-1030, or by email at Richard.Guzman@nrc.gov.
/RA/
Richard V. Guzman, Senior Project Manager Plant Licensing Branch I Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-220
Enclosure:
List of Attendees cc: Listserv
Enclosure LIST OF ATTENDEES NOVEMBER 3, 2022, MEETING BETWEEN THE NUCLEAR REGULATORY COMMISSION AND CONSTELLATION ENERGY GENERATION, LLC REGARDING PLANNED LICENSE AMENDMENT REQUEST TO ADOPT TSTF-505, RISK-INFORMED EXTENDED COMPLETION TIMES - RITSTF INITIATIVE 4b AND 10 CFR 50.69, RISK-INFORMED CATEGORIZATION AND TREATMENT OF STRUCTURES, SYSTEMS AND COMPONENTS FOR NUCLEAR POWER REACTORS, FOR FOR NINE MILE POINT NUCLEAR ONE, UNIT 1 ATTENDEES AFFILIATION/ORGANIZATION Brian Wittick U.S. Nuclear Regulatory Commission (NRC)
Rich Guzman NRC Mihaela Biro NRC Jonathan Evans NRC Alexander Schwab NRC Jeff Circle NRC Jigar Patel NRC Jay Robinson NRC Wesley Wu NRC Henry Wagage NRC Andrea Russell NRC Khadijah West NRC Chris Jackson NRC Fred Forsaty NRC Gurjendra Bedi NRC Robert Hsu NRC Steve Wyman NRC Adakou Foli NRC Vijay Goel NRC Hang Vu NRC Ming Li NRC Bob Davis NRC Karen Sida NRC
ATTENDEES AFFILIATION/ORGANIZATION Bart Fu NRC John Tsao NRC Dan Widrevitz NRC Carol Moyer NRC Kamishan Martin NRC Jeff Stone Constellation Energy Generation, LLC (Constellation)
Suzanne Loyd Constellation Ron Reynolds Constellation Jeremy Aiello Constellation Brandon Schultz Constellation Denise Wolniak Constellation Dan Morley Constellation Don Vanover Jensen Hughes (Contractor to Constellation)
Jeff Schappaugh Jensen Hughes Bob Kirchner Jensen Hughes Arfa Butt Jensen Hughes Rob Michel Jensen Hughes Chris Pupek Jensen Hughes Chris Seip Jensen Hughes Leo Shanley Jensen Hughes Ed Parsley Jensen Hughes David Passehl Jensen Hughes Kevin Huynh Jensen Hughes
Meeting Summary: ML22346A000 Meeting Notice: ML22305A595 Meeting Presentation: ML22301A013
- by email OFFICE NRR/DORL/LPL1/PM*
NRR/DORL/LPL1/LA*
NRR/DRA/APLA/BC*
NAME RGuzman KEntz RPascarelli DATE 12/9/2022 12/12/2022 12/12/2022 OFFICE NRR/DORL/LPL1/BC*
NRR/DORL/LPL1/PM*
NAME HGonzalez RGuzman DATE 12/14/2022 12/14/2022