ML22067A148

Reactor Vessel Material Surveillance Program Report

ML22067A148
Person / Time
Site:	Prairie Island
Issue date:	03/07/2022
From:	Domingos C Northern States Power Company, Minnesota, Xcel Energy
To:	Document Control Desk, Office of Nuclear Reactor Regulation
Shared Package
ML22067A147	List: L-PI-22-005, WCAP-18660-NP, Revision 0, Analysis of Capsule N from the Xcel Energy Prairie Island Unit 1 Reactor Vessel Radiation Surveillance Program, Appendix C, Part 5 Through Appendix D ML22067A148 ML22067A149 ML22067A150 ML22067A151 ML22067A152 ML22067A153 ML22067A154
References
L-PI-22-005
Download: ML22067A148 (3)

Text

1717 Wakonade Drive Welch, MN 55089 March 7, 2022 L-PI-22-005 10 CFR Part 50 Appendix H ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 Prairie Island Nuclear Generating Plant, Unit 1 Docket No. 50-282 Renewed Facility Operating License No. DPR-42 Prairie Island Unit 1 Reactor Vessel Material Surveillance Program Report In accordance with 10 CFR 50 Appendix H, Northern States Power Company, a Minnesota corporation, doing business as Xcel Energy (hereafter NSPM), hereby submits the enclosed non-proprietary report WCAP-18660-NP, Analysis of Capsule N from the Xcel Energy Prairie Island Unit 1 Reactor Vessel Radiation Surveillance Program.

The enclosed report will result in changes to the Prairie Island Nuclear Generating Plant Pressure and Temperature Limits Report. Therefore, NSPM will submit a license amendment request (LAR) to TS 5.6.6, Reactor Coolant System (RCS) PRESSURE AND TEMPERATURE LIMITS REPORT (PTLR), to incorporate use of newer approved analytical methods to determine the RCS pressure and temperature limits and Cold Overpressure Mitigation System setpoints. In accordance with 10 CFR 50, Appendix H, NSPM expects this LAR will be submitted by August 31, 2022.

Summary of Commitments This letter makes no new commitments and no revisions to existing commitments.

fl Xcel Energy

Document Control Desk Page 2 Please contact Mr. Jeff Kivi at (612) 330-5788 or Jeffrey.Kivi@xenuclear.com if there are any questions o i iti al information is needed.

Christopher. Domingos Site Vice President, Monticello and Prairie Island Nuclear Generating Plants Northern States Power Company - Minnesota Enclosure cc:

Administrator, Region Ill, USNRC Project Manager, Prairie Island, USNRC Resident Inspector, Prairie Island, USNRC

ENCLOSURE PRAIRIE ISLAND NUCLEAR GENERATING PLANT, UNIT 1 Prairie Island Unit 1 Reactor Vessel Material Surveillance Program Report (345 Pages Follow)