ML24324A172
| 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) | |
See also: IR 05000282/2025011
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:
RidsNrrPMPrairieIsland Resource
RidsNrrDorlLpl3
RidsNrrDroIrib Resource
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
Enclosure 1
Enclosure 1 - 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
2
13. List of RISC-1, RISC-2, and RISC-3 SSCs (for licensees that implement
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)
Enclosure 2
Enclosure 2: 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
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.