ML24109A179

Aging Management Audit Plan Regarding the Subsequent License Renewal Application Review

ML24109A179
Person / Time
Site:	Summer
Issue date:	04/19/2024
From:	Lauren Gibson NRC/NRR/DNRL/NLRP
To:	Carr E Dominion Energy South Carolina
References
Download: ML24109A179 (5)

Text

April 19, 2023

Eric S. Carr President - Nuclear Operations and Chief Nuclear Officer Innsbrook Technical Center 5000 Dominion Boulevard Glen Allen, VA 23060-6711

SUBJECT:

VIRGIL C. SUMMER NUCLEAR STATION, UNIT NO. 1 - LIMITED AGING MANAGEMENT AUDIT PLAN REGARDING THE SUBSEQUENT LICENSE RENEWAL APPLICATION REVIEW

Dear Eric S. Carr:

By letter dated August 17, 2023 (Agencywide Documents Access and Management System Accession No. ML23233A175), Dominion E nergy South Carolina, Inc. (DESC), on behalf of itself and Santee Cooper, submitted an application for the subsequent license renewal of Renewed Facility Operating License No. NPF-12 for Virgil C. Summer Nuclear Station, Unit No. 1 (V.C. Summer) to the U.S. Nuclear Regulatory Commission (NRC or staff).

The NRC plans to conduct an Aging Management A udit from April 24, 2024 - May 20, 2024, in accordance with the enclosed regulatory audit plan. If you have any questions on this matter, please contact Marieliz Johnson, Project Manager, for the safety review of the V.C. Summer Subsequent License Renewal Application at Marieliz.Veraamadiz@nrc.gov .

Sincerely,

/RA/

Lauren K. Gibson, Chief License Renewal Projects Branch Division of New and Renewed Licenses Office of Nuclear Reactor Regulation

Docket No. 50-395

Enclosure:

Aging Management Audit Plan

cc: w/encl.: ListServ

PKG: ML24109A115 Letter: ML24109A179 (PROP): ML24109A177 (Public): ML24109A178 *via email NRR-106 OFFICE PM: NRR/DNRL/NLRP* LA: NRR/DNRL

• BC: NRR/DNRL/NLRP*

NAME MJohnson KBratcher LGibson DATE 4/18/2024 4/19/2024 4/19/2024 Audit Plan Virgil C. Summer Nuclear Station, Unit No. 1 Subsequent License Renewal Application

Aging Management Regulatory Audit April 24, 2024 - May 20, 2024

Division of New and Renewed Licenses Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission

Enclosure Audit Plan Virgil C. Summer Nuclear Station, Unit 1 Subsequent License Renewal Application Aging Management Regulatory Audit

1. Background

By letter dated August 17, 2023 (Agencywide Documents Access and Management System Accession No. ML23233A175), Dominion Energy South Carolina, Inc. (DESC), on behalf of itself and Santee Cooper, submitted an application for subsequent license renewal of Renewed Facility Operating License No. NPF 12 for Virgil C. Summer Nuclear Station, Unit No. 1 (V.C.

Summer or the applicant) to the U.S. Nuclear Regulatory Commission (NRC or staff).

In accordance with the requirements of Title 10 of the Code of Federal Regulations (10 CFR)

Part 54, Requirements for Renewal of Operating Licenses for Nuclear Power Plants, the NRC will perform an aging management regulatory audit to gain a better understanding of (1) the applicants methodology to identify the systems, structures, and components (SSCs) to be included within the scope of subsequent license renewal and subject to an aging management review (AMR), and (2) the applicants aging management programs (AMPs),

AMR items, time-limited aging analyses (TLAAs), and associated bases and documentation as applicable.

2. Regulatory Audit Bases

License renewal requirements are specified in 10 CFR Part 54. Guidance is provided in NUREG-2192, Revision 0, Standard Review Plan for Review of Subsequent License Renewal Applications for Nuclear Power Plants (SRP-SLR), dated July 2017, and NUREG-2191, Revision 0, Generic Aging Lessons Learned for Subsequent License Renewal (GALL-SLR)

Report, dated July 2017.

3. Regulatory Audit Scope of Review

Following the Aging Management Audit (ML23296A109) and breakout questions (ML24085A701) as related to Subsequent License Renewal Application Section 3.5.2.2.2.6, Reduction of Strength and Mechanical Properties of Concrete Due to Irradiation, the staff will conduct a follow up audit to review the applicants responses and supporting bases to supplemental audit breakout questions discussed in 4. Audit Activities and further evaluate applicants conclusions in the SLRA

4. Audit Activities VC Summer SLRA: Supplemental Audit Questions (ML24109A178) include the questions to be discussed during the audit.

5. Information and Other Material Necessary for the Regulatory Audit

Throughout the Aging Management Audit, the staff will review the SLRA, as supplemented and revised, the AMP basis documents and other applicant supporting documents as appropriate and requested, which have been uploaded to the ePortal.

The staff may request additional applicant documents to be added to the ePortal over the course of the audit. The staff requests for ePortal additions shall be made, as needed, via the NLRP safety project manager, who will provide the requests to the applicant.

6. Team Assignments

Team Member Branch/Division Andrew Prinaris Structural, Civil, Geotech Engineering (ESEB)/ Division of Engineering and External Hazards (DEX)

David Dijamco Vessels and Internals (NVIB)/ Division of New and Renewed Licenses (DNRL)

Joseph Messina Nuclear Methods and Fuels (SFNB)/ Division of Safety Systems (DSS)

Marieliz Johnson License Renewal Projects Branch (NLRP)/DNRL Bill Rogers NLRP/DNRL

7. Logistics

The Aging Management Audit will be conducted prim arily using telecommunications from April 24, 2024, to May 20, 2024. Entrance and exit briefings will be held at the beginning and end of the audit via telecommunications.

8. Special Requests

The NRC staff requests the applicant to make available documents generated/used related to SLRA Section 3.5.2.2.2.6 following the first audit. Additional documents may be requested as necessary during the audit.

9. Deliverables

An audit report should be issued to the applicant within 90 days from the end of the Aging Management Audit.