ML18110A012

April 12, 2018, Summary of Meeting with Exelon Generation Company, Limerick, Units 1 and 2 - Regarding Their License Amendment Application for 10.CFR.50.69 Risk Informed Categorization of Structures Systems and Components.(Epid L-2017-LLA-0

ML18110A012
Person / Time
Site:	Limerick
Issue date:	04/25/2018
From:	V Sreenivas Plant Licensing Branch 1
To:	Bryan Hanson Exelon Nuclear
Sreenivas V, NRR/DORL/LPLI, 415-2597
References
EPID L-2017-LLA-0275
Download: ML18110A012 (4)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 April 25, 2018 LICENSEE:

Exelon Generation

Company, LLC FACILITY:

Limerick Generating

Station, Unit Nos. 1 and 2

SUBJECT:

SUMMARY OF APRIL 12, 2018, MEETING WITH EXELON GENERATION

COMPANY, LLC, LIMERICK GENERATING

STATION, UNITS 1 AND 2, REGARDING THEIR LICENSE AMENDMENT APPLICATION FOR 10 CFR 50.69 RISK INFORMED CATEGORIZATION OF STRUCTURES, SYSTEMS AND COMPONENTS (EPID L-2017-LLA-0275)

On April 12, 2018, a Category 2 public meeting was held between the U.S. Nuclear Regulatory Commission (NRC) and representatives of Exelon Generation

Company, LLC (Exelon, the licensee) via teleconference (Agencywide Documents Access Management Systems (ADAMS) Accession No. ML 181018388).

This meeting was open to members of the public. No regulatory decisions were made at this meeting.

The purpose of the meeting was to discuss the licensee's proposed response to request for additional information (RAI}, RAI 05.01, Qualitative Function Categorization (ADAMS Accession No. ML 180818068) regarding their application to implement Title 10 of the Code of Federal Regulations (CFR) Section 50.69 (10 CFR 50.69), "Risk Informed Categorization of Structures, Systems and Components."

Specifically, the staff requested additional information in RAI 05.01 on how the seven qualitative questions from Section 9.2 of Nuclear Energy Institute (NEI) 00-04 will be used in the licensee's 10 CFR 50.69 categorization process to determine the final safety significance of functions/structures,

systems, and components and how the licensee's approach is consistent with the guidance in NEI 00-04, as endorsed by Regulatory Guide 1.201, "Guidelines for Categorizing Structures,

Systems, and Components in Nuclear Power Plants According to Their Safety Significance,"

Revision 1 (ADAMS Accession No. ML061090627).

During the call and through answering clarification questions from the staff, the licensee explained that the seven qualitative questions are being preliminarily answered by the 50.69 categorization team for each system function, and are presented to the Integrated Decision-making Panel (IDP). The IDP reviews the answers to these questions for correctness.

The licensee further clarified that after the IDP review, if any of the seven questions is answered with a false or a negative statement for a function, then that function will be designated as final high-safety-significance.

The licensee stated that the approach is consistent with the guidance in NEI 00-04. The NRC staff concluded the meeting by informing the licensee that if additional written explanation were required, the licensee would be informed by future correspondence.

Members of the public were not in attendance.

Public Meeting Feedback forms were not received.

Please direct any inquiries to me at 301-415-2597 or v.sreenivas@nrc.gov.

Docket Nos. 50-352 and 50-353

Enclosure:

List of Attendees cc: Listserv V. Sreenivas, Project Manager Plant Licensing Branch I Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation ATTENDEES V. Sreenivas Stacey Rosenberg Mihaela Biro Ed Miller James Danna Lynne Gunderson Allen Moldenhauer Bob Post Heather Szews Jennifer Varnedoe Jeff Miller Bryan Thiele Tom Hook Frank Kusluch Glen Stewart Richard Grop LIST OF ATTENDEES APRIL 12, 2018, PUBLIC MEETING WITH EXELON GENERATION

COMPANY, LLC, LIMERICK GENERATING

STATION, UNITS 1 AND 2 DOCKET NOS. 50-352 and 50-353 ORGANIZATION U.S. Nuclear Regulatory Commission (NRC) NRC NRC NRC NRC Energy Northwest Dominion Energy (Dominion)

Dominion Duke Energy Progress, LLC (Duke) Duke Enercon Palo Verde Nuclear Generating Station (Palo Verde) Palo Verde Palo Verde Exelon Generation

Company, LLC (Exelon)

Exelon Shannon Rafferty-Czincila Preeti Furtado Exelon Exelon Joseph Janssen Brian Albinson David Bidwell Ken Saunders Charles Young Exelon Jensen Hughes/Exelon Jensen Hughes/Exelon Jensen Hughes/Exelon Jensen Hughes/Exelon Enclosure

SUBJECT:

SUMMARY OF APRIL 12, 2018, MEETING WITH EXELON GENERATION

COMPANY, LLC, LIMERICK GENERATING

STATION, UNITS 1 AND 2, REGARDING THEIR LICENSE AMENDMENT APPLICATION FOR 10 CFR 50.69 RISK INFORMED CATEGORIZATION OF STRUCTURES, SYSTEMS AND COMPONENTS DATED APRIL 25, 2018. DISTRIBUTION:

PUBLIC RidsNrrLAIBetts Resource RidsACRS_MailCTR Resource RidsNrrDorlLpl1 Resource RidsOpaMail Resource PMNS Resource ADAMS Accession No.: ML 18110A012 OFFICE DORL/LPL 1 /PM DORL/LPL 1/LA NAME VSreenivas I Betts DATE 4/23/18 4/23/18 RidsRgn1 MailCenter Resource RidsNrrPmlimerick Resource RidsNrrDorl Resource RidsNrrDlpPfpb Resource DRA/APLA/BC DORL/LPL 1 /BC SRosenberg JDanna 4/24/18 4/25/18 OFFICIAL RECORD COPY DORL/LPL 1/PM VSreenivas 4/25/18