ML24324A172

Nuclear Generating Plant Request for Information for the NRC Age Related Degradation - Inspection Report 05000282/2025011 & 05000306/2025011

ML24324A172
Person / Time
Site:	Prairie Island
Issue date:	11/20/2024
From:	Kevin Barclay NRC/RGN-III/DORS/EB1
To:	Conboy T Northern States Power Company, Minnesota
References
IR 2025011
Download: ML24324A172 (1)

Text

Thomas A. Conboy Site Vice President Prairie Island Nuclear Generating Plant Northern States Power Company, Minnesota 1717 Wakonade Drive East Welch, MN 55089-9642

SUBJECT:

PRAIRIE ISLAND NUCLEAR GENERATING PLANT - REQUEST FOR INFORMATION FOR THE NRC AGE-RELATED DEGRADATION INSPECTION:

INSPECTION REPORT 05000282/2025011 AND 05000306/2025011

Dear Thomas Conboy:

The purpose of this letter is to notify you that the U.S. Nuclear Regulatory Commission (NRC) staff will conduct IP 71111.21N.04, Age-Related Degradation baseline inspection at Prairie Island Nuclear Generating Plant, Units 1 and 2, beginning March 24, 2025. The inspection will be conducted in accordance with IP 71111.21N.04, dated December 15, 2023.

The schedule for the inspection is as follows:

• Information gathering visit - week of January 13, 2025.

• On-site inspection - weeks of March 24 and April 7, 2025 The purpose of the information gathering visit is to become familiar with the station maintenance, surveillance, testing, inspection, and condition monitoring programs, become familiar with plant layout, support identification of structures, systems, and components (SSCs) that will be reviewed during the inspection, and, as necessary, obtain plant-specific site access training and badging for unescorted site access. An initial list of documents that the team will review during the information gathering visit is listed in enclosure 1.

For SSCs that the inspection team plans to review, an initial list of the documents the team plans to review during the conduct of the inspection are listed in enclosure 2. The team leader will contact you with identified SSCs. Also, personnel should be available at the site during the inspection who are knowledgeable regarding maintenance, surveillance, testing, inspection, and condition monitoring programs.

The lead inspector for this inspection is Kevin Barclay. We understand that our regulatory contact for this inspection is Nathan Fedora of your organization. If there are any questions about the inspection or the material requested, please contact the lead inspector at 630-829-9885 or via email at Kevin.Barclay@nrc.gov.

This letter contains voluntary information collections that are subject to the Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.). The Office of Management and Budget (OMB) approved these information collections (approval number 3150-0011). The burden to the public November 20, 2024

T. Conboy 2

for these information collections is estimated to average 148 hours0.00171 days <br />0.0411 hours <br />2.44709e-4 weeks <br />5.6314e-5 months <br /> per response. Send comments regarding this information collection to the FOIA, Library and Information Collection Branch, Office of the Chief Information Officer, Mail Stop: T6-A10M, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001, or by email to Infocollects.Resource@nrc.gov, and to the OMB reviewer at: OMB Office of Information and Regulatory Affairs (3150-0011), Attn:

Desk Officer for the Nuclear Regulatory Commission, 725 17th Street, NW Washington, DC 20503.

In accordance with Title 10 of the Code of Federal Regulations (CFR) 2.390, Public Inspections, Exemptions, Requests for Withholding, of the NRC's Rules of Practice, a copy of this letter, its enclosures, and your response (if any) will be available electronically for public inspection in the NRCs Public Document Room or from the Publicly Available Records System (PARS) component of NRC's Agencywide Document Access and Management System (ADAMS). ADAMS is accessible from the NRC website at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).

Sincerely, Kevin Barclay, Senior Reactor Inspector Engineering Branch 1 Division of Operating Reactor Safety Docket Nos. 05000282 and 05000306 License Nos. DPR-42 and DPR-60

Enclosure:

1. Requested Information to Support Age-Related Degradation Sample Selection

2. Requested Information to Support Age-Related Degradation Inspection cc: Distribution via LISTSERV Signed by Barclay, Kevin on 11/20/24

T. Conboy 3

Letter to Thomas Conboy from Kevin Barclay dated November 20, 2024.

SUBJECT:

PRAIRIE ISLAND NUCLEAR GENERATING PLANT - REQUEST FOR INFORMATION FOR THE NRC AGE-RELATED DEGRADATION INSPECTION:

INSPECTION REPORT 05000282/2025011 AND 05000306/2025011 DISTRIBUTION:

Robert Ruiz RidsNrrPMPrairieIsland Resource RidsNrrDorlLpl3 RidsNrrDroIrib Resource Jack Giessner Mohammed Shuaibi Diana Betancourt-Roldan Allan Barker David Curtis Jonathan Feibus R3-DORS ADAMS Accession Number: ML24324A172 Publicly Available Non-Publicly Available Sensitive Non-Sensitive OFFICE RIII NAME KBarclay:gmp DATE 11/20/2024 OFFICIAL RECORD COPY

- Requested Information to Support Age-Related Degradation Sample Selection The documents and information requested below should generally be made available to the inspection team for the teams use both on-site and off-site during the information gathering visit. Electronic format is the preferred media. If electronic media is made available via an internet based remote document management system, then the remote document access should allow inspectors to download, save, and print the documents in the NRCs regional office. Electronic media on compact disc or paper records (hard copy) are acceptable. At the end of the inspection, the documents in the teams possession should not be retained.

This document request is based on typical documents that a generic plant might have. As such, this document request is not meant to imply that any specific plant is required to have all of the listed documents. In addition, your plant-specific document titles may vary from the document titles listed below.

The following information is requested by January 3, 2025, or sooner, to facilitate the sample selections.

Documents requested, if available:

1.

List of 50.65 (a)(1) SSCs from the past 5 years 2.

List of maintenance rule functional failures (including preventable) from the past 5 years 3.

Most recent evaluation of maintenance effectiveness required per 10 CFR 50.65(a)(3) 4.

Maintenance rule scoping and performance criteria document 5.

List of preventative maintenance deferrals and preventative maintenance change requests in the last 5 years 6.

Equipment reliability characterization and preventative maintenance program procedures 7.

List of 10 CFR Part 21 Reports applicable to the site from the past 5 years 8.

Site specific corrective actions associated with component failures, or tagged with aging, age-related, wear, accelerated wear, abnormal wear, accelerated degradation, abnormal degradation, corrosion, degradation, etc.

9.

List of technical specification operability determinations from the past 5 years

10. List of risk-significant long-lived passive SSCs (for licensees in the period of extended operation (PEO)

11. Aging management programs (AMPs) and any plant-specific or industry operating experience reviews that have been used to update aging management activities (for licensees in the period of extended operation)

12. List of top 100 most risk-significant structures and components. If possible, designate the component as active or passive in the risk ranking

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13. List of RISC-1, RISC-2, and RISC-3 SSCs (for licensees that implement 10 CFR 50.69)

14. Safety significant functions identified during the RISC categorization process, and alternative treatment requirements (for licensees that implement 10 CFR 50.69)

15. Last feedback and process adjustment required per 10 CFR 50.69(e)(1) (for licensees that implement 10 CFR 50.69)

16. Site specific probabilistic risk assessment (PRA) identifying risk-significant functions

17. Technical specifications and technical requirements manual, including applicable bases documents

18. List of systems (system numbers/designators and corresponding names)

Requested Information to Support Age-Related Degradation Inspection The team lead will identify samples (i.e., structures and components) after the information gathering visit. The documents and information requested below should generally be made electronically available to the inspection team for the teams use both on-site and off-site. At the end of the inspection, the documents in the teams possession should not be retained.

This document request is based on typical documents that a generic plant might have. As such, this document request is not meant to imply that any specific plant is required to have all the listed documents. In addition, your plant-specific document titles may vary from the document titles listed below. We also request that the information provided be sorted by the list below for each sample.

The following information is requested by March 3, 2025, or sooner, to facilitate the inspection.

1.

List of corrective action documents for the last 10 years 2.

Maintenance, surveillance, testing, inspection, and condition monitoring testing requirements, acceptance criteria, and periodicities (including activities credited for license renewal) 3.

Bases documents associated with maintenance, surveillance, testing, inspection, and condition monitoring testing requirements, acceptance criteria, and periodicities (including activities credited for license renewal) 4.

Last 2 years of maintenance, surveillance, testing, inspection, and condition monitoring testing results; for periodicities greater than 2 years, the last two test results (including activities credited for license renewal) 5.

Self-imposed and vendor recommendations 6.

If available a)

Equipment reliability category/characterization (e.g., non-critical, run-to-maintenance, etc.)

b)

Preventative maintenance templates for the maintenance strategy c)

System design basis documents and the specific updated final safety analysis report section that describes the function d)

Piping and instrumentation drawings (P&IDs) and electrical one-line drawings e)

Control circuit drawings f)

Design/procurement specifications g)

List of applicable modifications for the component If you have questions regarding the information requested, please contact the lead inspector.