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CAC:MF6978, Provide RISK-INFORMED Extended Completion Times - RITSTF Initiative 4B (Open) CAC:MF6979, Provide RISK-INFORMED Extended Completion Times - RITSTF Initiative 4B (Open) |
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MONTHYEARML15308A1072015-11-0505 November 2015 TSTF-505 LAR - NRC Pre-Submittal, November 5, 2015 Meeting Slides Project stage: Meeting ML15314A1222015-12-0101 December 2015 11/5/15, Summary of Meeting with Exelon Generation Company, LLC, on Calvert Cliffs, Units 1 & 2, Pre-Submittal Meeting Regarding the License Amendment Request Regarding to Adopt Technical Specifications Task Force Traveler-505 (CAC Nos. MF6 Project stage: Meeting 2015-11-05
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Category:Meeting Summary
MONTHYEARML23352A0592024-01-0909 January 2024 Summary of December 11, 2023, Meeting with Constellation on Alternative Request Involving Carbon Fiber Reinforced Polymer Composite 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 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 ML23033A6662023-02-0909 February 2023 Summary of Public Meeting with Constellation Energy Generation, LLC (Constellation) to Discuss Its Request for Alternatives for Certain Steam Generator Weld Inspections for Calvert Cliffs 1 & 2, Byron 1 & 2, Braidwood 1 & 2, and Ginna ML22264A1992022-11-14014 November 2022 Summary of August 22, 2022, Meeting Between the U.S. Nuclear Regulatory Commission and Constellation Energy Generation, LLC, Regarding Performance Monitoring of Steam Generator Welds (Epids L-2022-LRR-0074, 0076, 0079, 0091, 0092, 0093 and ML22187A1462022-07-0606 July 2022 Joint Annual Assessment Meeting for Pa/Md/Nj/Ny Nuclear Power Plants - Meeting Summary ML22159A2272022-06-0808 June 2022 Summary of May 10, 2022, Pre-Application Meeting Between the U.S. Nuclear Regulatory Commission and Constellation Energy Generation, Llc, Regarding a Proposed License Amendament Request (Lar) for Calvert Cliffs Nuclear Power Plant ML22144A0202022-05-26026 May 2022 Summary of Meeting Between the U.S. Nuclear Regulatory Commission and Constellation Energy Generation, LLC, Regarding Proposed Alternative for Examinations of Certain Pressurizer Welds at Calvert Cliffs ML22066A0012022-03-22022 March 2022 Summary, January 10, 2022, Closed Meeting with Exelon Generation Company, Llc, Proposed Relief Request for Alternative Repair of Buried Saltwater Piping with Carbon Fiber Reinforced Polymer Composite System 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, ML21228A0742021-08-27027 August 2021 Summary of July 13, 2021, Meeting with Exelon Generation Company, LLC Concerning License Amendment Request for Calvert Cliffs Nuclear Power Plant, Units 1 and 2, Concerning Spent Fuel Pool Cooling Design Basis Change (L-2021-LLA-0112) 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 ML21161A1082021-06-25025 June 2021 Summary of Pre-Application Meeting with Exelon Generation Company, LLC on Planned Submittal of License Amendment Request for Calvert Cliffs Nuclear Power Plant, Units 1 and 2, Concerning Spent Fuel Pool Cooling Design Basis Change 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 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 ML20272A0132020-10-0707 October 2020 Summary of September 3, 2020, Meeting with Exelon Generation Company, LLC Concerning Supplemental Position Indication Testing Interval Alternative Request ML20197A2722020-07-15015 July 2020 2020 Beaver Valley, Calvert Cliffs, Limerick Peach Bottom, Susquehanna Annual Assessment Webinar Summary 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 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 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 ML19136A2752019-05-15015 May 2019 Aam 2019 Meeting Summary ML19135A1052019-05-15015 May 2019 Aam Summary Data Sheet of 2018 Plant Performance ML20108F0902019-04-20020 April 2019 April 15, 2020, Meeting Summary with Exelon Generation Company, LLC Regarding Planned Request to Defer Submittal of Owner'S 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 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 ML18292A8202018-10-24024 October 2018 October 4, 2018, Summary of Pre-Application Meeting with Exelon Generation Co., LLC on Planned Submittal of Licensing Action for Calvert Cliffs Nuclear Power Plant, Units 1 and 2, Risk-Informed Categorization and Treatment ML18197A2292018-07-20020 July 2018 Summary of Meeting with Exelon Generation Company, Llc, on Planned Submittal of Risk Informed License Amendment and Exemption Requests Concerning Resolution of Generic Issue 191 (CAC Nos. MF8521 and MF8522; EPID L-2016-LRM-0001) ML18197A4362018-07-18018 July 2018 May 21, 2018, Summary of Meeting with Exelon Generation Company, LLC, on Planned Submittal of Risk-Informed License Amendment and Exemption Requests Concerning Resolution of Generic Issue 191 ML18191A9962018-07-13013 July 2018 Plants, - Summary of June 14, 2018, Meeting with Exelon Generation Company, LLC, on Planned Submittal of License Amendments Concerning Alternating Current Sources and Control Room Emergency Ventilation System ... ML18120A1772018-05-0101 May 2018 Summary of Meeting with Exelon Generation Company, LLC Regarding Draft Guidance for Emergency Response Organization Staffing ML18096B0782018-04-12012 April 2018 Summary of Meeting with Exelon Generation Company, LLC, on Planned Submittal of License Amendments Concerning Emergency Operation Facility and Technical Support Center (EPID L-20118-LRM-0016) ML18096B1982018-04-0606 April 2018 Summary of Public Annual Assessment Meeting Calvert Cliffs Nuclear Power Plant Dated April 6, 2018 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 ML17249A3202017-09-18018 September 2017 Summary of Meeting with Exelon Generation Company, LLC, on Planned Submittal of Risk-Informed License Amendment and Exemption Requests Concerning Resolution of Generic Issue 191 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) ML17143A3572017-05-23023 May 2017 Summary of Public Meeting Calvert Cliffs Nuclear Plant ML16228A0622016-08-15015 August 2016 Summary of July 26, 2016, Public Meeting on Status of Associated Effects Submittals Related to the Reevaluated Flood Hazards at Exelon Generation Company, LLC Sites as Part of the Response to Near-Term Task Force Recommendation 2.1, Floodin ML16118A1322016-04-26026 April 2016 4/21/2016 - Summary of Annual Assessment Meeting for Calvert Cliffs Nuclear Power Plant ML16117A1972016-04-21021 April 2016 4/21/2016 - Calvert Cliffs Nuclear Power Plant, Units 1 and 2, Annual Assessment Meeting, and Sign-in Sheet and Summary Data Sheet ML16075A4562016-04-12012 April 2016 February 24, 2016, Summary of Meeting with Exelon Generation Company, LLC, to Discuss the Flaw Indication in the Calvert Cliffs Unit 1 Pressurizer Safety Valve Dissimilar Metal Weld ML16085A3292016-04-0606 April 2016 Summary of March 22, 2016, Meeting with Exelon Generation Company, LLC, on Proposed License Amendment Request to Adopt ANSI 3.1-2014 Operating Training Standards 2024-01-09
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LICENSEE:
Exelon Generation Company, LLC FACILITY:
Calvert Cliffs Nuclear Power Plant, Unit Nos. 1 and 2
SUBJECT:
SUMMARY
OF NOVEMBER 5, 2015, PRE-SUBMITTAL MEETING WITH EXELON GENERATION COMPANY, LLC, ON CALVERT CLIFFS NUCLEAR POWER PLANT, UNIT NOS. 1 AND 2, REGARDING THE LICENSE AMENDMENT REQUEST TO ADOPT TECHNICAL SPECIFICATIONS TASK FORCE TRAVELER-505 (CAC NOS. MF6978 AND MF6979) On November 5, 2015, a Category 1 public meeting was held between the U.S. Nuclear Regulatory Commission (NRC) staff and representatives of Exelon Generation Company, LLC (the licensee), at NRC Headquarters, One White Flint North, 11555 Rockville Pike, Rockville, Maryland.
The purpose of the meeting was to discuss the planned submittal of a license amendment request (LAR) to adopt Technical Specification Task Force Traveler-505 (TSTF-505) "Provide Risk-Informed Extended Completion Times [RICTs] -RITSTF [Risk-Informed Technical Specification Task Force] Initiative 4B," for the Calvert Cliffs Nuclear Power Plant, Unit Nos. 1 and 2 (Calvert Cliffs). The meeting notice and agenda, dated October 26, 2015, is available in the Agencywide Documents Access and Management System (ADAMS) at Accession No. ML 15308A 194. A list of attendees is provided in the Enclosure.
The licensee presented information regarding the content of the proposed LAR, the licensee's probabilistic risk assessment (PRA) model and configuration risk management program (CRMP), the plan to implement TSTF-505 and train operators on the use of RICTs, and the proposed schedule and next steps for submitting the LAR. The licensee's presentation slides can be viewed at ADAMS Accession No. ML 15308A107.
The licensee presented information that outlined the content of the proposed LAR. The proposed LAR will modify approximately 27 limiting conditions of operation (LCOs) for Modes 1 and 2 only. A Technical Specification (TS) will be added to the Administrative Controls section of the TSs for the RICT program. In addition, the licensee plans to propose approximately three variations from TSTF-505 along with minor differences in wording of the TS due to plant-specific TSs. The licensee detailed parts of their PRA and CRMP models to explain how the internal events PRA, fire PRA, seismic risk, and wind risk will be accounted for within the Calvert Cliffs RICT program. The licensee also discussed how plant modifications from the NFPA-805 LAR would impact the RICT program and the timeframe for implementing the modifications.
The licensee has updated the CRMP tool and PRA models to support the RICT and will implement procedure changes, training, and qualifications on the RICT program. The licensee has targeted December 2015 to submit the LAR, with implementation planned in 2017. During the meeting the NRC staff queried the licensee on several aspects of the proposed LAR. Some of these queries resulted in follow-up items for the licensee to investigate.
The NRC staff asked why there is a restoration action in the Calvert Cliffs site-specific TSs for the main feedwater isolation valves. The licensee will look into this question further. The licensee will also determine if changes in their PRA model due to the NFPA-805 LAR should be classified as "upgrades" to the PRA. The licensee and the NRC will discuss whether there is a need to include a proposed license condition to state that the RICT program will not be implemented until completion of certain modifications that have been proposed as part of the NFPA-805 LAR. Approval of the NFPA-805 LAR does not appear to be necessary for the licensee to submit the TSTF-505 LAR. The NRC staff questioned the licensee on how the licensee plans to define PRA Functionality for TSs when there is a loss of specified TS safety function operability.
As a result of this discussion the licensee will investigate how safety margins and the depth philosophy will be maintained in the "as-built" plant as well as the program to maintain the safety margins and defense-in-depth when using PRA functional instead of operability.
In addition, the staff encouraged the licensee to provide a detailed comparison of the "design basis function" and the "PRA function" for certain SSCs and to explain any differences.
The licensee will also follow-up on the scope of the systems, structures, and components that were included in the high wind PRA walkdown.
As part of its review of key assumptions and uncertainties, the licensee may also need to consider PRA modeling assumptions which may result in a conservative baseline risk estimate, and non-conservative RICT calculation.
Members of the public were in attendance but did not have any comments.
Public Meeting Feedback forms were not received.
Please direct any inquiries to me at 301-415-2549 or Alexander.Chereskin@nrc.gov.
Docket Nos. 50-317 and 50-318
Enclosure:
List of Attendees cc w/encl: Distribution via Listserv Alexander N. Chereskin, Project Manager Plant Licensing Branch 1-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation LIST OF ATTENDEES NOVEMBER 5, 2015, MEETING WITH EXELON GENERATION COMPANY, LLC, TO DISCUSS CALVERT CLIFFS NUCLEAR POWER PLANT, UNIT NOS. 1 AND 2 SUBMITTAL OF THE TSTF-505 LICENSE AMENDMENT REQUEST U.S. Nuclear Regulatory Commission and Contractors A. Chereskin T. Hilsmeier S. Dinsmore N.Carte S. Rosenberg S. Arndt D. Gennardo M. Reisifard T. Tate E. Miller G. Curran M. Chernoff Exelon Generation Company, LLC G. Stewart H. Harrison Ill B. Sloane G. Kelly J. Mitchell*
Members of the Public A. Cullku V. Anderson*
- via teleconference Enclosure also determine if changes in their PRA model due to the NFPA-805 LAR should be classified as "upgrades" to the PRA. The licensee and the NRC will discuss whether there is a need to include a proposed license condition to state that the RICT program will not be implemented until completion of certain modifications that have been proposed as part of the NFPA-805 LAR. Approval of the NFPA-805 LAR does not appear to be necessary for the licensee to submit the TSTF-505 LAR. The NRC staff questioned the licensee on how the licensee plans to define PRA Functionality for TSs when there is a loss of specified TS safety function operability.
As a result of this discussion the licensee will investigate how safety margins and the depth philosophy will be maintained in the "as-built" plant as well as the program to maintain the safety margins and defense-in-depth when using PRA functional instead of operability.
In addition, the staff encouraged the licensee to provide a detailed comparison of the "design basis function" and the "PRA function" for certain SSCs and to explain any differences.
The licensee will also follow-up on the scope of the systems, structures, and components that were included in the high wind PRA walkdown.
As part of its review of key assumptions and uncertainties, the licensee may also need to consider PRA modeling assumptions which may result in a conservative baseline risk estimate, and non-conservative RICT calculation.
Members of the public were in attendance but did not have any comments.
Public Meeting Feedback forms were not received.
Please direct any inquiries to me at 301-415-2549 or Alexander.Chereskin@nrc.gov.
IRA/ Alexander N. Chereskin, Project Manager Plant Licensing Branch 1-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-317 and 50-318
Enclosure:
List of Attendees cc w/encl: Distribution via Listserv DISTRIBUTION:
PUBLIC M. Chernoff, NRR D. Gennardo, NRR S. Dinsmore, NRR M. Reisifard, NRR S. Arndt, NRR RidsNrrDraApla ADAMS Accession Nos.: THilsmeier, NRR RidsNrrDssSbpb RidsNrrDeEicb JJessie, EDO RI RidsNrrLAKGoldstein TWertz, NRR G. Curran, NRR RidsNrrDssStsb RidsAcrsAcnw
_MailCTR RidsNrrDorlLpll-1 RidsNrrPMCalvertCliffs N. Carte, NRR E. Miller, NRR RidsRgn1 MailCenter Resource M r N r ML15308A194 M r s ee mg o ice: ee in 1 ummary: ML 15314A122 H d t ML 15308A107 an ou s: OFFICE NRR/DORL/LPLl-1
/PM NRR/DORL/LPLl-1/LA NRR/DRA/APLA/BC NAME AChereskin KGoldstein SRosenberg DATE 11/13/2015 11/10/2015 11/19/2015 OFFICE NRR/DSS/STSB/BC NRR/DORL/LPLl-1/BC N RR/DORL/LPLl-1
/PM NAME RElliot TT ate AChereskin DATE 11/19/2015 11/23/2015 12/01/2015 OFFICIAL RECORD COPY