Letter Sequence Meeting |
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MONTHYEARML16307A4902016-10-25025 October 2016
Presentation Slides from Public Meeting Calvert Cliffs GSI-191 Resolution Update
Project stage: Meeting
ML16328A2832016-11-18018 November 2016
Supplemental Presentation Slides for 10/25/2016 Public Meeting Via E-mail from K.Greene to R.Guzman Calvert Cliffs GSI-191 Resolution Update
Project stage: Request
ML16328A3472016-11-23023 November 2016
Memo to File: E-mail from R.Guzman to E.Villar Regarding Meeting Summary of Calvert Cliffs Nuclear Power Plant Units 1 and 2 - GSI-191 Resolution on 10/25/16
Project stage: Meeting
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
Project stage: Meeting
ML18136A4932018-05-16016 May 2018
Licensee'S Slides for Pre-Application Meeting W/Exelon Re Planned GSI-191 LAR for Calvert Cliffs (L-2016-LRM-0001)
Project stage: Meeting
ML18198A2922018-05-16016 May 2018, 17 May 2018, 18 July 2018
May 21, 2018, Meeting with Exelon Generation Company, LLC, on Planned Submittal of Risk-Informed License Amendment and Exemption Requests Concerning Resolution of Generic Issue 191 (EPID L-2016-LRM-0001
Project stage: Request
ML18197A2392018-06-19019 June 2018, 21 June 2018, 20 July 2018
Summary of June 21, 2018 Meeting with Exelon Generation Company, LLC
Project stage: Request
ML18171A0842018-06-21021 June 2018
GSI-191 Program Use of Risk Metrics for Containment Sump Tech Spec Operability Determination June 21, 2018 Public Meeting Slides (MF8521, MF8522; L-2016-LRM-0001)
Project stage: Meeting
ML18201A4062018-06-21021 June 2018
Plants, Units 1 and 2 - Exelon'S Response to NRC Questions
Project stage: Other
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
Project stage: Meeting
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)
Project stage: Meeting
2018-05-16
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Category:Meeting Summary
MONTHYEARML24155A1992024-06-0303 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
ML23352A0592024-01-0909 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
2024-06-03
[Table view] |
Text
~R REG<,<.t /~~c. >-0\ UNITED STATES NUCLEAR REGULATORY COMMISSION
"' J: f WASHINGTON, D.C. 20555-0001
"'-:s, ~& I')***~* July 20, 2018 LICENSEE:
Exelon Generation Company, LLC FACILITY:
CALVERT CLIFFS NUCLEAR POWER PLANT, UNITS 1 AND 2
SUBJECT:
SUMMARY
OF JUNE 21, 2018 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)
On June 21, 2018, a Category 1 public meeting was held between the U.S. Nuclear Regulatory Commission (NRC) and representatives of Exelon Generation Company, LLC (Exelon, the licensee) by telephone conference.
The purpose of the meeting was for Exelon to explicitly describe its consideration of risk metrics, if the NRC were to approve its planned license amendment and exemption requests (submittal) concerning the risk-informed resolution of Generic Issue (GI) 191, "Assessment of Debris Accumulation on PWR [Pressurized Water Reactor] Sump Performance," for Calvert Cliffs Nuclear Power Plant, Units 1 and 2 (Calvert Cliffs). The licensee plans to submit the requests to the NRC in July 2018. The meeting notice and agenda, dated June 6, 2018, are available in the Agencywide Documents Access and Management System (ADAMS) at Accession No. ML18170A204.
The presentation material used by the licensee is available in ADAMS at Accession No. ML18171A084.
A list of attendees is enclosed.
Assuming the NRC would approve the risk-informed design basis accident analysis that will be described in the planned submittal, the licensee described how it would consider risk metrics in determining whether a new limiting condition operation (LCO) for the potential effects of loss-of-coolant accident generated and transported debris amounts that exceeds analyzed amounts (see Slide 1) is or is not met. The Exelon representatives stated that risk metrics (see Slide 2) would be added to the Calvert Cliffs Updated Finals Safety Analysis Report, if the NRC were to approve the planned submittal.
Those risk metrics would be used to avoid entering the required action for analyzed debris amounts, and would be used to exit the required action for unanalyzed debris amounts. Prior to the meeting, the NRC staff sent the following questions to the licensee and the licensee provided responses to the questions (ADAMS Accession No. ML18201A406):
- 1. Is Exelon proposing to use risk metrics to decide whether CONDITION A of LCO 3.6.9 (see Slide 1) is met or satisfy REQUIRED ACTION A.3 of LCO 3.6.9? Yes, Exelon is proposing to use risk metrics to decide whether CONDITION A of LCO 3.6.9 is met. What are the analyzed limits mentioned in CONDITION A of LCO 3.6.9 (see Slide 1 ), and are the analyzed limits risk metrics or deterministic parameters?
For this proposal the analyzed limits are risk metrics, 6CDF [delta core damage frequency]
and 6LERF [delta large early release frequency]
based on deterministic parameters.
- 2. How is the use of risk metrics risk-informed (i.e., is the use risk-based or risk-informed)?
The use of the risk metrics is risk-informed.
It is a combination of risk-based metrics (CDF and LERF from the PRA [probabilistic risk assessment])
and deterministic considerations (debris quantities and 6 debris quantities to determine 6CDF and 6LERF from the GSl-191 NARWHAL model). 3. Does Exelon consider its planned use of risk consistent with the guidance in IMC [inspection manual chapter] 0326 on use of PRA and operability determinations.
The operability of the containment emergency recirculation sump at Calvert Cliffs will be based on a risk-informed assessment after the Risk-Informed GSl-191 license amendment is granted, consistent with the STP Pilot Project. This same risk-informed assessment will be used as the basis for deciding whether CONDITION A of LCO 3.6.9 is met. The quantitative evaluation is not performed using the plant-specific PRA. Therefore, Exelon considers the planned use of risk consistent with the guidance in IMC 0326 on use of PRA and operability determinations.
The NRC staff informed the licensee that the NRC staff would treat the planned submittal as a first-of-kind complex review, because of the direct use of risk metrics in determining whether a limiting condition of operation is or is not meet. The treatment of the planned submittal as first-of-kind review would: o Involve review by additional NRC staff. o Require greater scrutiny of the risk portion of the planned submittal.
o Require additional person hours to complete the review. o Require addressing current NRC practices involving operability determinations. Members of the public were in attendance.
NRC staff did not receive any questions or comments from members of the public. No Public Meeting Feedback forms were received.
No regulatory decisions were made during the public meeting. Please direct any inquiries to me at (301) 415-2871 or Michael.Marshall@nrc.gov.
Docket Nos. 50-317 and 50-318
Enclosure:
List of Attendees cc: via Listserv Sincerely, Michael L. Marshall, Jr., Senior Project Manager Plant Licensing Branch I Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation LIST OF ATTENDEES MAY 21, 2018, MEETING WITH EXELON GENERATION COMPANY, LLC, ON PLANNED SUBMITTAL OF RISK-INFORMED LICENSE AMENDMENT AND EXEMPTION REQUESTS FOR CALVERT CLIFFS NUCLEAR POWER PLANT, UNITS 1 AND 2, CONCERNING RESOLUTION OF GENERIC ISSUE 191 Name Oraanization Ron Holloway Wolf Creek Nuclear OperatinQ Corporation Craig Sellers Exelon Generation Company, LLC (Exelon) Enrique Villar Exelon John Tsao U.S. Nuclear Regulatory Commission (NRC) Steve Smith NRC Kenneth Greene Exelon Craig Sellers Exelon Candace de Messieres NRC Michael Marshall NRC Vic Cusumano NRC Mehdi Reisi Fard NRC Andrea Russell NRC James Danna NRC Shavon Morris NRC Enclosure
SUBJECT:
SUMMARY
OF JUNE 21, 2018 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)
DATED JULY 20, 2018 DISTRIBUTION:
PUBLIC RidsNrrDorlLpl1 Resource RidsRgn1 MailCenter Resource RidsACRS_MailCTR Resource RidsNrrLALRonewicz Resource RidsNrrLAIBetts Resource RidsNrrPMCalvertCliffs Resource JBowen, OEDO TWertz, NRR SSmith, NRR VCusumano, NRR CdeMessieres, NRR MReisiFard, NRR ARussell, NRR JDanna, NRR SMorris, NRR ADAMS Accession No. Meeting Notice: ML18170A204 H d an outs: ML18171A084 OFFICE NRR/DORL/LPL 1 /PM NRR/DORL/LPL 1/BC NAME MMarshall JDanna DATE 07/16/2018 07/18/2018 Meeting Summary: ML18197A229 Packa 1e: ML18197A239 NRR/DORL/LPL 1/PM MMarshall 07/20/2018 OFFICIAL RECORD COPY
