ML25029A005
| ML25029A005 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 01/28/2025 |
| From: | John Lamb Plant Licensing Branch II |
| To: | Joyce R Southern Nuclear Operating Co |
| References | |
| L-2025-LLL-0000 | |
| Download: ML25029A005 (3) | |
Text
From:
John Lamb Sent:
Tuesday, January 28, 2025 5:36 PM To:
Johnston, Jeanne D.
Cc:
Joyce, Ryan M.
Subject:
Acceptance Review-Vogtle 1 and 2 License Renewal Commitment No. 12 - a Plant-Specific Analysis of Nickel Alloy Management Program (L-2025-LLL-0000)
- Jeanne, By letter dated January 15, 2025 (Agencywide Documents Access and Management System Accession No. ML25015A191), Southern Nuclear Operating Company (SNC, the licensee) submitted, in accordance with license renewal commitment (LRC) No. 12, a plant-specific analysis of nickel alloy management program for non-reactor vessel closure head penetration locations at the Vogtle Electric Generating Plant (Vogtle), Units 1 and 2, for U.S. Nuclear Regulatory Commission (NRC) staff review and approval.
The purpose of this e-mail is to provide the results of the NRC staffs acceptance review of this licensing action. The acceptance review was performed to determine if there is sufficient technical information in scope and depth to allow the NRC staff to complete its detailed technical review. The acceptance review is also intended to identify whether the application has any readily apparent information insufficiencies in its characterization of the regulatory requirements or the licensing basis of the plant.
The Vogtle, Units 1 and 2, Updated Final Safety Analysis Report (UFSAR) (ML24297A651),
Section 19.2.14, Reactor Vessel Internals Program, states:
The Nickel Alloy Management Program for Nonreactor Vessel Closure Head Penetration Locations is a plant-specific program that manages cracking due to primary water stress corrosion cracking (PWSCC) for nonreactor vessel head nickel alloy component locations. The overall goal of the program is to maintain plant safety and minimize the impact of PWSCC on plant availability through assessment, inspection, mitigation, and repair or replacement of susceptible components. Program development is based on MRP-126, Generic Guidance for Alloy 600 Management.
The program is based on the following set of implementation commitments:
- 1. SNC will continue to participate in industry initiatives directed at resolving PWSCC issues, such as owners group programs and the EPRI Materials Reliability Program.
- 2. SNC will comply with applicable NRC orders.
- 3. SNC will submit a program inspection plan for VEGP that includes implementation of applicable NRC bulletins, generic letters, and staff-accepted industry guidance. The inspection plan will be submitted to the staff for review and approval not less than 24 months prior to entering the period of extended operation for VEGP Units 1 and 2. The inspection plan will include assessments of each of the 10 aging management program elements defined in Section A.1.2.3 of NUREG-1800, Revision 1.
Nickel Alloy Management Program for Nonreactor Vessel Closure Head Penetration Locations will be fully implemented prior to the period of extended operation.
The NRC staff has reviewed your application and concluded that it does provide technical information in sufficient detail to enable the NRC staff to complete its detailed technical review and make an independent assessment regarding the acceptability of the proposed licensing action in terms of regulatory requirements and the protection of public health and safety and the environment. Given the lesser scope and depth of the acceptance review as compared to the detailed technical review, there may be instances in which issues that impact the NRC staffs ability to complete the detailed technical review are identified despite completion of an adequate acceptance review. If additional information is needed, you will be advised by separate correspondence.
Based on the information provided in your submittal, the NRC staff has estimated that this licensing request will take approximately 60 hours6.944444e-4 days <br />0.0167 hours <br />9.920635e-5 weeks <br />2.283e-5 months <br /> to complete. The NRC staff expects to complete this review by May 28, 2025. If there are emergent complexities or challenges in our review that would cause changes to the initial forecasted completion date or significant changes in the forecasted hours, the reasons for the changes, along with the new estimates, will be communicated during the routine interactions with the assigned project manager.
Additional delay may occur if the submittal is provided to the NRC in advance or in parallel with industry program initiatives or pilot applications.
If you have any questions, please contact me.
John G. Lamb, Senior Project Manager Plant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
Hearing Identifier:
NRR_DRMA Email Number:
2711 Mail Envelope Properties (MN2PR09MB5084361372C59688D350BEF2FAEF2)
Subject:
Acceptance Review-Vogtle 1 and 2 License Renewal Commitment No. 12 - a Plant-Specific Analysis of Nickel Alloy Management Program (L-2025-LLL-0000)
Sent Date:
1/28/2025 5:36:28 PM Received Date:
1/28/2025 5:36:00 PM From:
John Lamb Created By:
John.Lamb@nrc.gov Recipients:
"Joyce, Ryan M." <RMJOYCE@southernco.com>
Tracking Status: None "Johnston, Jeanne D." <JEAJOHNS@SOUTHERNCO.COM>
Tracking Status: None Post Office:
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