RA-22-0149, Supplement to the Request for an Exemption to the Requirements of Certificate of Compliance No. 1031 for the NAC Magnastor Storage System

Supplement to the Request for an Exemption to the Requirements of Certificate of Compliance No. 1031 for the NAC Magnastor Storage System

ML22118B165
Person / Time
Site:	Mcguire, Catawba, McGuire, 07201031
Issue date:	04/28/2022
From:	Gibby S Duke Energy Carolinas
To:	Document Control Desk, Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation
References
RA-22-0149
Download: ML22118B165 (2)

Text

( ~ DUKE SHAWN GIBBY Vice President ENERGY Nuclear Engineering 526 South Church Street, EC-07H Charlotte, NC 28202 704 519-5138 Shawn.Gibby@duke-energy.com Serial: RA-22-0149 10 CFR 72.7 April 28, 2022 10 CFR 72.212 10 CFR 72.214 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 Catawba Nuclear Station, Units Nos. 1 and 2 Docket Nos. 50-413, 50-414 Renewed Facility Operating License Nos. NPF-35, NPF-52 Independent Spent Fuel Storage Installation Docket No. 72-45 McGuire Nuclear Station, Unit Nos. 1 and 2 Docket Nos. 50-369, 50-370 Renewed Facility Operating License Nos. NPF-9, NPF-17 Independent Spent Fuel Storage Installation Docket No. 72-38

Subject:

Supplement to the Request for an Exemption to the Requirements of Certificate of Compliance No. 1031 for the NAC MAGNASTOR Storage System

References:

1. Duke Energy Letter RA-22-0080, Request for an Exemption to the Requirements of Certificate of Compliance No. 1031 for the NAC MAGNASTOR Storage System, dated April 7, 2022 (Agencywide Document Access and Management System [ADAMS] Accession Nos.

ML22097A057 and ML22097A058).

2. NAC Letter to the U.S. NRC, Submission of an Amendment Request for the NAC International MAGNASTOR Cask System Amendment No. 12, dated January 24, 2022 (ADAMS Accession No. ML22024A374).

3. NAC letter to the U.S. NRC, Supplement to NACs Amendment request for the NAC International MAGNASTOR Cask Sysem Amendment No. 12, dated March 18, 2022 (ADAMS Accession No. ML22077A769).

4. U.S. NRC letter to NAC, Application for Amendment No. 12 to the Model No. MAGNASTOR Storage Cask - Request for Additional Information, dated April 12, 2022 (ADAMS Accession No. ML22095A100).

5. NAC Letter to the U.S. NRC, RAI Response to NACs Amendment Request for the NAC International MAGNASTOR Cask System Amendment No. 12, dated April 18, 2022 (ADAMS Accession No. ML22108A197).

Ladies and Gentlemen:

In Reference 1, Duke Energy Carolinas, LLC (Duke Energy) requested U.S. Nuclear Regulatory Commission (NRC) approval for an exemption to the requirements of 10 CFR 72.212(a)(2),

U.S. Nuclear Regulatory Commission RA-22-0149 Page 2 10 CFR 72.212(b)(3), 10 CFR 72.212(b)(5)(i), 10 CFR 72.212(b)(11) and 10 CFR 72.214 for 74 MAGNASTOR Vertical Concrete Casks (VCCs). NAC International (NAC), the Certificate of Compliance (CoC) holder for the MAGNASTOR storage system, recently brought to the attention of Duke Energy a Nuclear Regulatory Commission (NRC) identified noncompliance issue with the fabrication of VCCs delivered to Duke Energy.

In Reference 2, NAC submitted a License Amendment Request for the NAC International MAGNASTOR Cask System Amendment No. 12. A supplement to Amendment No. 12, was subsequently submitted to the NRC by NAC (Reference 3). In Reference 4, the NRC requested additional information (RAI) from NAC to complete its review. NAC provided RAI responses to the NRC in Reference 5, which included updates to the MAGNASTOR Technical Specifications (TS). This letter confirms that Duke Energy has reviewed the responses in Reference 5 and confirms the concrete casks are fabricated in accordance with the updated TS provided by NAC.

Duke Energy is aligned with the NAC RAI responses and there are no impacts to the exemption request conclusions provided in Reference 1.

This letter contains no Regulatory Commitments. Please refer any questions regarding this submittal to Mr. Lee Grzeck, Manager (acting) - Nuclear Fleet Licensing, at (980) 373-1530.

Sincerely, Shawn Gibby Vice President Nuclear Engineering NDE cc:

L. Dudes, U.S. NRC, Regional Administrator J. Austin, U.S., NRC, Sr. Resident Inspector - Catawba A. Hutto, U.S. NRC, Sr. Resident Inspector - McGuire Z. Stone, U.S. NRC, Project Manager - Catawba J. Klos, U.S. NRC, Project Manager - McGuire B. White, U.S. NRC, Sr. Project Manager, Division of Spent Fuel Management