ML24040A048
| ML24040A048 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 02/12/2024 |
| From: | Thomas Briley NRC/RGN-III/DORS/EB1 |
| To: | Hafen S Northern States Power Company, Minnesota |
| References | |
| IR 2024010 | |
| Download: ML24040A048 (1) | |
See also: IR 05000263/2024010
Text
Shawn Hafen
Site Vice President
Monticello Nuclear Generating Plant
Northern States Power Company, Minnesota
2807 West County Road 75
Monticello, MN 55362-9637
SUBJECT:
MONTICELLO NUCLEAR GENERATING PLANT - REQUEST FOR
INFORMATION FOR THE NRC AGE-RELATED DEGRADATION INSPECTION:
INSPECTION REPORT 05000263/2024010
Dear Shawn Hafen:
The purpose of this letter is to request information to support our scheduled age-related
degradation inspection beginning March 11, 2024, at Monticello Nuclear Generating Plant. This
inspection will be performed in accordance with NRC baseline inspection procedure
71111.21N.04 Age-Related Degradation.
An information gathering visit was conducted the week of January 29, 2024. The purpose of the
information gathering visit was 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 already provided by your staff are 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.
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
for these information collections is estimated to average 42 hours4.861111e-4 days <br />0.0117 hours <br />6.944444e-5 weeks <br />1.5981e-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 Desk Officer, Office of Information and Regulatory Affairs, NEOB-10202, (3150-0011)
OMB, Washington, DC 20503.
February 12, 2024
S. Hafen
2
The NRC may not conduct nor sponsor, and a person is not required to respond to, a request
for information or an information collection requirement unless the requesting document
displays a currently valid OMB control number.
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).
If there are any questions about the material requested, or the inspection in general, please
contact me at 630-829-9595 or Thomas.Briley@nrc.gov.
Sincerely,
Senior Project Engineer
Technical Support Staff
Division of Operating Reactor Safety
Docket Nos. 05000263
License Nos. DPR-22
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 Briley, Thomas
on 02/12/24
S. Hafen
3
Letter to Shawn Hafen from Thomas Briley dated February 12, 2024.
SUBJECT:
MONTICELLO NUCLEAR GENERATING PLANT - REQUEST FOR
INFORMATION FOR THE NRC AGE-RELATED DEGRADATION INSPECTION:
INSPECTION REPORT 05000263/2024010
DISTRIBUTION:
RidsNrrDorlLpl3
RidsNrrPMMonticello
RidsNrrDroIrib Resource
R3-DORS
ADAMS Accession Number: ML24040A048
Publicly Available
Non-Publicly Available
Sensitive
Non-Sensitive
OFFICE
RIII
NAME
TBriley:do
DATE
02/12/2024
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 electronically
available to the inspection team for the team's use both on-site and off-site. At the end of the
inspection, the documents in the team's 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.
The following information has already been provided 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
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
Enclosure 1
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 team's use both on-site and off-site. At the
end of the inspection, the documents in the team's 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 4, 2024, 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
3.
Bases documents associated with maintenance, surveillance, testing, inspection, and
condition monitoring testing requirements, acceptance criteria, and periodicities
4.
Last two years of maintenance, surveillance, testing, inspection, and condition
monitoring testing results; for periodicities greater than 2 years, the last two test
results.
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.