ML23184A086

6/23/2023 Summary of Pre Application Public Meeting with Xcel Energy on Prairie Island ISFSI Amendment Application

ML23184A086
Person / Time
Site:	Prairie Island
Issue date:	07/11/2023
From:	Yen-Ju Chen Storage and Transportation Licensing Branch
To:	Jacob Zimmerman Division of Fuel Management
References
EPID L-2023-LRM-0038, CAC 001028
Download: ML23184A086 (4)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 MEMORANDUM TO:

Jacob Zimmerman, Deputy Director Division of Fuel Management Office of Nuclear Material Safety and Safeguards FROM:

Yen-Ju Chen, Senior Project Manager Storage and Transportation Licensing Branch Division of Fuel Management Office of Nuclear Material Safety and Safeguards

SUMMARY

OF JUNE 23, 2023, PUBLIC MEETING WITH XCEL ENERGY TO DISCUSS AMENDMENT APPLICATION FOR PRAIRIE ISLAND INDEPENDENT SPENT FUEL STORAGE INSTALLATION On June 23, 2023, the U.S. Nuclear Regulatory Commission (NRC) staff from the Division of Fuel Management held a public meeting with representatives from Xcel Energy. The purpose of the meeting was to discuss Xcel Energys planned amendment request to revise Prairie Island Independent Spent Fuel Storage Installation technical specification (TS) 4.4, codes and standards, for the TN Americas (TN) TN-40HT casks.

The meeting was noticed on June 9, 2023 (Agencywide Documents Access and Management System [ADAMS] Accession No. ML23159A254). Several members of the public attended this meeting. A partial meeting attendees list is included in the enclosure. The meeting handout (ML23168A003) is available on the NRC public meeting website.

Xcel Energy is fabricating TN-40HT casks through Orano/TN Americas. During the fabrication, TN identified that, for two TN-40HT casks, a required non-destructive examination (NDE) magnetic particle (MT) inspection of the shell flange base material prior to welding was not performed in accordance with the American Society of Mechanical Engineers (ASME) code fabrication sequence as required by the license. Both casks have not been loaded with spent nuclear fuel.

Xcel Energy plans to submit an amendment application to revise TS 4.4 to allow the use of a code alternative to the ASME Boiler and Pressure Vessel code. TN has developed an alternative NDE examination for the base material and weld by using an enhanced radiography (RT) examination or a phased array ultrasonic (PAUT) examination along with RT on the completed weld. TN has completed both RT and PAUT examinations on the two affected CONTACT:

Yen-Ju Chen, NMSS/DFM (301) 415-1018 July 11, 2023 Signed by Chen, Yen-Ju on 07/11/23

J. Zimmerman 2

TN-40HT casks with satisfactory results. The staff requested information in the amendment application to demonstrate the alternative is technically acceptable.

Staff questioned whether this alternative would become a permanent approach and if TN would stop performing the pre-welding examinations. TN stated that it intends to continue performing MT in accordance with ASME code and only intends to use the alternative on the two affected casks. Xcel Energy and TN have entered this incident into their corrective action program and will look into the causes. Xcel will review the NOTE for the proposed TS 4.4 alternative to clarify the intent.

Xcel Energy plans to submit the amendment application by the end of July 2023 and seek the NRCs approval by June 25, 2024, to support fuel loading. The staff requested the need-date information in the application to help the staff prioritize projects and manage resources.

There was no public comment.

Docket No. 72-0010 CAC No. 001028 EPID No. L-2023-LRM-0038

Enclosure:

Partial Meeting Attendee List

ML23184A086 (Memo)

Enclosure Partial Meeting Attendee List The U.S. Nuclear Regulatory Commission Attendees Tom Boyce, Branch Chief, Materials and Structural Branch Yen-Ju Chen, Project Manager Eliezer Goldfeiz, Shielding Reviewer Darrell Dunn, Materials Reviewer Loren Howe, Materials Reviewer Olivia Hunsberger, Summer Hire JoAnn Ireland, Confinement Reviewer Christian Jacobs, Project Manager John-Chau Nguyen, Project Manager Yoira Diaz Sanabria, Branch Chief, Storage and Transportation Licensing Branch Xcel Energy Attendees Mark McKeown - Director of Nuclear Project Management Lynn Johnson - Manager of Spent Nuclear Fuel Projects Mike Staley - Design Engineer Mark Loosbrock - Prairie Island Operations Support Manager Kara Gibson -Prairie Island Reactor Systems Engineer Mike Miller -Regulatory Affairs Manager - Licensing Jeff Kivi - Licensing Engineer TN Americas Attendees Marlin Stoltz II - Director of Fabrication Engineering Duane Spencer - Manager of Cask Fabrication Engineering Don Shaw - Licensing Manager Doug Yates - Licensing Engineer Members of the Public Carlyn Greene - Senior Vice President, Spent Fuel