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MONTHYEARML19158A1202019-06-10010 June 2019
Rict & 50.69 LARs NRC Pre-submittal Meeting
Project stage: Request
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
Project stage: Meeting
2019-06-10
[Table View] |
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Category:Meeting Summary
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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
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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
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August 21, 2018, James A. Fitzpatrick Nuclear Power Plant (Fitzpatrick) and Nine Mile Point Nuclear Generating Station (Nine Mile Point) Summary of Public Meeting
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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
2024-06-03
[Table view] |
Text
July 19, 2019 LICENSEE: Exelon Generation Company, LLC FACILITY: Nine Mile Point Nuclear Station, Unit 2
SUBJECT:
SUMMARY
OF THE JUNE 10, 2019, PUBLIC MEETING WITH EXELON GENERATION COMPANY, LLC, REGARDING PLANNED CONCURRENT SUBMITTAL OF RISK-INFORMED COMPLETION TIME AND RISK-INFORMED CATEGORIZATION AND TREATMENT OF STRUCTURES, SYSTEMS, AND COMPONENTS LICENSE AMENDMENT REQUESTS (EPID L-2019-LRM-0030)
On June 10, 2019, a Category 1 public meeting was held between the U.S. Nuclear Regulatory Commission (NRC) and representatives of Exelon Generation Company, LLC (Exelon, licensee). The purpose of the meeting was for the NRC and Exelon to discuss the benefits, if any, from concurrent submittal of risk-informed completion time and risk-informed categorization and treatment of structures, systems, and components (SSCs) license amendment requests for Nine Mile Point Nuclear Station, Unit 2 (Nine Mile Point 2). Also, the licensee provided an overview of each planned submittal. The meeting notice and agenda, dated May 24, 2019, are available in the Agencywide Documents Access and Management System (ADAMS) under Accession No. ML19144A202. The slide presentation used by the licensee during the meeting is available in ADAMS under Accession No. ML19158A120. A list of attendees is enclosed.
The Exelon representatives stated that the risk-informed completion time and risk-informed categorization license amendment requests would be submitted separately on the same day (or close to the same day) at the end of July 2019 or beginning of August 2019. Exelon stated that the risk-informed completion time request would be based on TSTF-505, Rev. 2, Provide Risk Informed Extended Completion Times - RITSTF Initiative 4B, (ADAMS Accession No. ML18183A493) with variance from TSTF-505 due to differences in technical specification style, nomenclature, numbering, plant-specific limiting condition for operations (LCOs) and standard LCOs not applicable to Nine Mile Point 2. Exelon stated that the risk-informed categorization request would be based on Nuclear Energy Institute NEI-004, Rev. 0, 10 CFR 50.69 SSC Categorization Guideline, July 2005 (ADAMS Accession No. ML052910035). The Exelon representatives discussed Nine Mile Point 2 probabilistic risk assessment adequacy, uncertainties, and assumptions.
The Exelon representatives described the review efficiencies that the licensee expected to be available to the NRC staff during the concurrent review of the risk-informed completion time and risk-informed categorization and treatment of SSCs license amendment requests for Nine Mile Point 2. Exelon did not offer an explicit definition of efficiencies or the amount of efficiency the licensee expected. The NRC staff informed the Exelon representatives that the NRC considers review efficiency in terms of completing either a review with lower level-of-effort, a shorter duration, or both. The NRC staff informed the Exelon representatives that the NRC staff believed that only limited opportunities for review efficiency would be available from concurrent review of the risk-informed completion time and risk-informed categorization and treatment of
SSCs license amendment requests for Nine Mile Point 2, because there would be limited overlap between the two reviews other than both involved a review of Nine Mile Point 2 probabilistic risk assessment. Although both involve the review of the use of probabilistic risk assessment, the application of probabilistic risk assessment does not overlap.
The NRC staff informed the licensee that an opportunity to achieve efficiency, in terms of a possible lower level-of-effort from concurrent review of the two license amendment requests, would be to conduct a joint regulatory audit. If the two requests were submitted at roughly the same time, a joint regulatory audit would extend the duration of the risk-informed categorization review, because it will take the staff longer to prepare for an audit of a risk-informed completion time request. In response to this information, the Exelon representatives stated that the licensee did not want to delay one review for the other. The NRC staff and Exelon representatives discussed several factors that could affect the level-of-effort and duration of concurrent reviews. Additionally, the NRC staff and Exelon representatives discussed the typical tools that the NRC staff uses to obtain lower level-of-effort and a shorter duration for separate, unlinked reviews. No decisions or assurances were made during the meeting about how the NRC staff would conduct the review of either of the planned submittals.
No regulatory decisions were made during the public meeting. Members of the public did not attend the meeting. Three public feedback meeting forms were received from meeting attendees.
Please direct any inquiries to me at 301-415-2871 or Michael.Marshall@nrc.gov.
Sincerely,
/RA/
Michael L. Marshall, Jr., Senior Project Manager Plant Licensing Branch I Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-410
Enclosure:
List of Attendees cc: Listserv
LIST OF ATTENDEES PUBLIC MEETING WITH EXELON GENERATION COMPANY, LLC, REGARDING PLANNED CONCURRENT SUBMITTAL OF NINE MILE POINT NUCLEAR STATION, UNIT 2, RISK-INFORMED COMPLETION TIME AND RISK-INFORMED CATEGORIZATION AND TREATMENT OF STRUCTURES, SYSTEMS, AND COMPONENTS LICENSE AMENDMENT REQUESTS Name Organization David Passehl Exelon Generation Company, LLC (Exelon)
Shannon Rafferty-Czincila Exelon Ronnie Reynolds Exelon Barry Sloane Jensen Hughes Nicholas Sternowski Jensen Hughes Stephen Dinsmore U.S. Nuclear Regulatory Commission (NRC)
Michael Levine NRC Ming Li NRC Khoi Nguyen NRC Michael Marshall NRC Ed Miller NRC Stacey Rosenberg NRC Jeffrey Stone NRC Philip Tarpinian NRC Bob Tjader NRC Enclosure
Meeting Notice ML19144A202, Meeting Summary ML19183A238, Handouts ML19158A120 OFFICE NRR/DORL/LPL1/PM NRR/DORL/LAiT NRR/DORL/LPL1/LA NAME MMarshall KEntz CSmith (LRonewicz for)
DATE 07/10/2019 07/09/2019 7/19/2019 OFFICE NRR/DORL/LPL1/BC NRR/DORL/LPL1/PM NAME JDanna MMarshall DATE 07/19/2019 07/19/2019
