L-MT-25-024, Refueling Outage 1 R32 ISI Summary
| ML25265A146 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 09/22/2025 |
| From: | Neal M Northern States Power Company, Minnesota, Xcel Energy |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| References | |
| L-MT-25-024 | |
| Download: ML25265A146 (1) | |
Text
(}, Xcel Energy*
September 22, 2025 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 Monticello Nuclear Generating Plant Docket No. 50-263 Subsequent Renewed Facility Operating License No. DPR-22 Refueling Outage 1 R32 ISi Summary 2807 West County Road 75 Monticello, MN 55362 L-MT-25-024 10 CFR 50.55a Pursuant to 10 CFR 50.55a, Northern States Power Company - a Minnesota corporation doing business as Xcel Energy (hereafter "NSPM"), hereby submits the enclosed lnservice Inspection (ISi) Summary Report and Form OAR-1 "Owner's Activity Report" (Enclosure) for the Monticello Nuclear Generating Plant (MNGP) refueling outage (1 R32) that concluded on May 26, 2025.
Summary of Commitments This letter makes no new commitments and no revisions to existing commitments.
Michelle M. Neal Plant Manager, Monticello Nuclear Generating Plant Northern States Power Company - Minnesota Enclosure cc:
Administrator, Region 111, USNRC Project Manager, Monticello, USNRC Resident Inspector, Monticello, USNRC Connected
- Committed
- Trustworthy
- Safe Monticello lnservice Inspection Summary Report 6 Pages Follow
Xcel Energy Xcel Energy, Inc.
Northern States Power Co. - Minnesota 414 Nicollet Mall Minneapolis, MN 55401 INSERVICE INSPECTION
SUMMARY
REPORT Monticello Nuclear Generating Plant Unit 1 2807 West County Road 75 Monticello, MN 55362 Commercial Service Date: June 30, 1971 Cycle No. 32 Refueling Outage Outage Dates: April 18, 2025 to May 26, 2025 lnservice Inspection: Interval 6 (June 1, 2023 -May 31, 2033)
Period 1 (June 1, 2023 - May 31, 2027)
Containment (IWE) Inspection: Interval 3 (September 9, 2019-September 8, 2029)
Period 2 (September 9, 2022 -September 8, 2026)
Prepared By:
Adam Reinholz ASME Section XI ISi Program Owner ANTI:
" Kurt Suleski The Hartford Stearn Boiler Inspection and Insurance Company Approved By:
Stephen Sollom Engineering Manager Report Date: July 24, 2025
Monticello Nuclear Generating Plant Inservice Inspection
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- 2.
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TABLE OF CONTENTS SECTIONS Summary Form OAR-1, Owner's Activity Report for Cycle 32 Table 1, Items with Flaws or Relevant Conditions That Required Evaluation for Continued Service Table 2, Abstract of Repair/Replacement Activities Required for Continued Service Cycle 32 Summary Report 2025 Refueling Outage PAGES 1
1 1
1
Monticello Nuclear Generating Plant Inservice Inspection SECTION 1.
SUMMARY
Cycle 32 Summary Report 2025 Refueling Outage Page 1 of 1 In accordance with the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel (B&PV) Code,Section XI; this report provides the following:
Form OAR-1, Owner's Activity Report Table 1, Items with Flaws or Relevant Conditions That Required Evaluation for Continued Service Table 2, Abstract of Repair/Replacement Activities Required for Continued Service.
This information is applicable to lnservice Inspection (ISI) activities performed during operating Cycle 32 at Monticello Nuclear Generating Plant (MNGP) Unit 1, including the 32nd refueling outage. Cycle 32 began June 1st 2023, immediately following completion of the 31 st refueling outage and conclusion of the 5th Inservice Inspection Interval.
Examinations and tests for Cycle 32 were scheduled and conducted in accordance with the following plans:
- 6th Interval ISI Plan, applicable to Inspection Period 1.
- 3rd Interval IWE Plan, applicable to Inspection Period 2.
Monticello Nuclear Generating Plant Inservice Inspection SECTION 2.
FORMOAR-1 Cycle 32 Summary Report 2025 Refueling Outage Page 1 of 1 FORM OAR-1 OWNER'S ACTIVITY REPORT Report Number_~M~N=G~P~1~R=3=2..,0"""A""R.,_-~1 __________________________ _
Unit No.------'----
(if applicable)
Commercial service date _ ___,J..,u..,n""e_,3""0"-'-1 =-97._1,..__ Refueling outage no. __
___,1.,_R,,.3,:2 __ _
Current inspection interval -~IS=I.,_:..,6~th~l=ns=p..,e=c=tio=n"-"'ln-'=t=-erv'-=a~I -~-~IW~E=:_3~rd~ln=s""p=-e=ct"'io,.,,n'""l"'nc,,te=rv"-'a=I __________ _
(1st, 2nd, 3rd, 41h, olher)
Current inspection period __
~IS=I'-: ~1_st~l~ns=p=e=c=ti=on~P..,e=ri=o=d-~-~IWE~-~* =2~"d~l~n=sp=e=c=t=io~n~P~e=r=io=-d ___________ _
(1st, 2nd, 3rd)
Edition and addenda of Section XI applicable to the inspection plans ISi: 2019 Edition / IWE: 2013 Edition Date and revision of inspection plans ISi: 6th Interval Plan. Rev.1.10/3/2024 / IWE: 3rd Interval Plan. Rev. 2. 10/19/2023 Edition and Addenda of Section XI applicable to repair/replacement activities, if different than the inspection plans ____ _
N/A Code Cases used for inspection and evaluation:._~N'--=6~13~-=2~N~-7~1~6'-'-2~N~-..,8=8=5 __________ _
0f appITcable, including cases modified by Case N-532 and later revisions)
CERTIFICATE OF CONFORMANCE I certify that (a) the statements made in this report are correct; (b) the examinations and tests meet the Inspection Plan as required by the ASME Code,Section XI; and (c) the repair/replacement activities and evaluations supporting the completion of __
1~R=3=2~(=20=2=5~R~F~O~} __
(refueling outage number) conform to the requirements of Section XI.
Signed: A£ A/4', /<t,.*)J_lJSI Program Owner Date_~7,~1/_v-l_/_2,_0_Z,~_-___
Owner or Owner's Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and employed by The Hartford Steam Boiler Inspection and Insurance Company of Hartford. Connecticut have inspected the items described in this Owner's Activity Report, and state that, to the best of my knowledge and belief, the Owner has performed all activities represented by this report in accordance with the requirements of Section XI.
By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the repair/replacement activities and evaluation described in the report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or loss of any kind arising from or connected with this inspection.
/(.. vc,,..1://'/,u.. l.,..__4._ l Commission NB11863 IN R Inspector's Signature (National Board Number and Endorsements)
Date. __
i_/_l.--=-,f_* -'-/l_J_-__ _
Monticello Nuclear Generating Plant Inservice Inspection SECTION 3.
TABLE 1 TABLE 1 Cycle 32 Summary Report 2025 Refueling Outage Page 1 of 1 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRED EVALUATION FOR CONTINUED SERVICE Examination Category and Item Number Item Description Evaluation Description None.
None.
None.
Monticello Nuclear Generating Plant Inservice Inspection SECTION 4.
TABLE2 TABLE 2 Cycle 32 Summary Report 2025 Refueling Outage Page 1 of 1 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE Code Plant Item Description of Work Completed Date R/R Plan#
Class ID#