ML24040A048

– Request for Information for the NRC Age-Related Degradation Inspection: Inspection Report 05000263/2024010

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,

Thomas Briley

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:

Jeffrey Hamman

RidsNrrDorlLpl3

RidsNrrPMMonticello

RidsNrrDroIrib Resource

John Giessner

Mohammed Shuaibi

Diana Betancourt-Roldan

Allan Barker

David Curtis

Jared Heck

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 - 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 1

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.

Enclosure 2