ML24032A086

From kanterella
Jump to navigation Jump to search

Summary of Meeting with Constellation Energy Generation, LLC, on Planned Requests to Use Code Case N-932
ML24032A086
Person / Time
Site: Dresden, Peach Bottom, Nine Mile Point, Limerick, Clinton, Quad Cities, LaSalle  Constellation icon.png
Issue date: 02/02/2024
From: Scott Wall
Plant Licensing Branch III
To:
Constellation Energy Generation
Wall, SP
References
EPID L-2023-LRM-0111
Download: ML24032A086 (1)


Text

February 2, 2024

LICENSEE: Constellation Energy Generation, LLC

FACILITIES: Clinton Power Station, Unit No. 1; Dresden Nuclear Power Station, Units 2 and 3; James A. FitzPatrick Nuclear Power Plant; LaSalle County Station, Units 1 and 2; Limerick Generating Station, Units 1 and 2; Nine Mile Point Nuclear Station, Units 1 and 2; Peach Bottom Atomic Power Station, Units 2 and 3; and Quad Cities Nuclear Power Station, Units 1 and 2

SUBJECT:

SUMMARY

OF JANUARY 30, 2024, MEETING WITH CONSTELLATION ENERGY GENERATION, LLC ON PLANNED REQUESTS TO USE CODE CASE N-932 (EPID L-2023-LRM-0111)

On January 30, 2024, an observation meeting was held between the U.S. Nuclear Regulatory Commission (NRC) and representatives of C onstellation Energy Generation, LLC (CEG, the licensee) via webinar. The purpose of this meeting was to discuss CEGs plans to submit a request to use American Society of Mechanical Engineers (ASME) Code Case N-932, Alternative Requirements for Acceptance of Containment Base Metal Corrosion or Erosion Section XI, Division 1, for Clinton Power Station, Unit No. 1; Dresden Nuclear Power Station, Units 2 and 3; James A. FitzPatrick Nuclear Power Plant; LaSalle County Station, Units 1 and 2; Limerick Generating Station, Units 1 and 2; Nine M ile Point Nuclear Station, Units 1 and 2; Peach Bottom Atomic Power Station, Units 2 and 3; and Quad Cities Nuclear Power Station, Units 1 and 2 (collectively, the CEG facilities). The meeting notice and agenda dated January 3, 2024, are available in the Agencyw ide Documents Access and Management System (ADAMS) at Accession No. ML24029A292, and CEGs meeting handout is available at ML24029A174. A list of attendees is enclosed.

The licensee presented information regarding (1) the current ASME requirements for wetted surfaces of submerged areas, (2) a description of Code Case N-932, and (3) the benefits of utilizing Code Case N-932. The licensee sought guidance on options for submitting the application. Specifically, the licensee proposed to either (a) submit the application as a single application for all the affected sites, (b) submit the application as a single application for just those sites most in need of the alternative, or (c) submit separate applications for each site in need of the alternative. CEG currently plans to submit the alternative requests in Spring 2024.

The NRC staff provided feedback on the following topics:

Projecting Wall Thickness: The NRC staff recommended that CEG ensure sufficient detail is provided in the application to describe how the licensee determines that corrosion or erosion of the component wall thickness is projected to not reduce to less than 110 percent of the minimum design wall thickness prior to the next examination.

Submission of Application: The NRC staff indicated that the generic review for acceptance of ASME Code Case N-932 was a multi-group effort through rulemaking, which the licensee understood would take some time to complete. In the interim, the

NRC staff suggested that a plant-specific app lication to utilize ASME Code Case N-932, including details of the specific application and hardship, would be a smaller and more focused scope of review.

The NRC staff appreciated that the licensee held the meeting sufficiently early in the development process so that any staff comment could be considered in the application.

No members of the public had questions or comments during the meeting. No regulatory decisions were made at this meeting. Please direct any inquiries to me at 301-415-2855, or Scott.Wall@nrc.gov.

Sincerely,

/RA/

Scott P. Wall, Senior Project Manager Plant Licensing Branch III Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation

Docket Nos. 50-461, 50-237, 50-249, 50-333, 50-373, 50-374, 50-352, 50-353, 50-220, 50-410, 50-277, 50-278, 50-254, and 50-265

Enclosure:

List of Attendees

cc: Listserv LIST OF ATTENDEES

JANAURY 30, 2024, PUBLIC MEETING WITH

CONSTELLATION ENERGY GENERATION, LLC

PLANNED REQUESTS TO USE CODE CASE N-932

Name Organization Scott Wall Nuclear Regulatory Commission (NRC)

Ian Tseng NRC George Wang NRC Michael Benson NRC Jay Collins NRC Elena Herrera Torres NRC

Mark Weis Constellation Energy Generation, LLC (CEG)

Bryce Babarsky CEG Dan Moreno CEG

Thomas Basso Nuclear Energy Institute (NEI)

Enclosure

ML24032A086 OFFICE NRR/DORL/LPL3/PM NRR/DORL/LPL3/LA NRR/DORL/LPL3/BC NRR/DORL/LPL3/PM NAME SWall SRohrer JWhited SWall DATE 01/30/2024 02/01/2024 02/01/2024 02/02/2024