ML23041A466

Amendment No. 6 to Certificate of Compliance No. 1032 for the Holtec International Storage Module (Hi-Storm) Flood and Wind (FW) Multipurpose Canister (MPC) Storage System (Docket No. 72-1032, CAC No. 001028, EPID: L-2019-LLA-0231)

ML23041A466
Person / Time
Site:	07201032
Issue date:	02/15/2023
From:	Yoira Diaz-Sanabria Storage and Transportation Licensing Branch
To:	O'Mullane C Holtec
Garcia-Santos N
Shared Package
ML23041A437	List: ML23041A466 ML23041A467 ML23041A468 ML23041A469 ML23041A470
References
CAC 001028, EPID L-2019-LLA-0231
Download: ML23041A466 (2)

Text

Christopher OMullane Licensing Engineer Holtec International Holtec Technology Campus 1 Holtec Blvd.

Camden, NJ 08104

SUBJECT:

AMENDMENT NO. 6 TO CERTIFICATE OF COMPLIANCE NO. 1032 FOR THE HOLTEC INTERNATIONAL STORAGE MODULE (HI-STORM) FLOOD AND WIND (FW) MULTIPURPOSE CANISTER (MPC) STORAGE SYSTEM (DOCKET NO. 72-1032, CAC NO. 001028, EPID: L-2019-LLA-0231)

Dear Christopher OMullane:

As requested by your application dated October 2, 2019 (ADAMS Package Accession No. ML19282C357), and supplemented on June 30, 2020 (ML20182A860), December 21, 2020 (ML20356A328), August 2, 2021 (ML21214A130), and November 29, 2021 (ML21333A137),

enclosed is Amendment No. 6 to Certificate of Compliance (CoC) No. 1032 for Holtec International Storage Module (HI-STORM) Flood and Wind (FW) Multipurpose Canister (MPC)

Storage System (hereafter HI-STORM FW system) (Enclosures 1-3). The amended certificate constitutes the U.S. Nuclear Regulatory Commissions (NRC) approval for use of the HI-STORM FW MPC for storage of spent nuclear fuel under the general licensing provisions of 10 CFR Part 72, Subparts K and L, subject to the conditions in the amended certificate.

Holtec proposed the changes described in the table below.

Proposed change No.Brief description of the change Reason 1Add anchored configuration for the HI-STORM FW overpack.Prevent cask tip over during seismic events at sites where a free-standing overpack would otherwise overturn or slide.

2Allow use of non-single failure proof lifting equipment during handling of heavy loads within the 10 CFR Part 72 jurisdictional boundary.Allow use of the HI-STORM FW system at sites without single failure proof lifting equipment.

3Revise LCO 3.1.2, SFSC Heat Removal System Operability, to allow an engineering evaluation to be performed in lieu of transferring the MPC into a transfer cask.Add the option for analysis in lieu of transferring the MPC under LCO 3.1.2, Condition C. Per the applicant, allowing this option eliminates burden on the site using the HI-STORM FW system.February 15, 2023 C. OMullane 2 Proposed change No.Brief description of the change Reason 4Revise the Radioactive Effluent Control Program to no longer require annual submittal of a separate radioactive effluent report [10 CFR 72.44(d)(3)] for the HI-STORM FW system.Eliminating a separate annual report. Per the applicant, allowing this option eliminates burden on the site using the HI-STORM FW system.

5Revise the allowable contents for the MPC-37, -89, and -32ML to clarify that fuel debris permitted for storage does not need to meet all of the dimensional requirements and characteristics in tables 2.1-2 and 2.1-3, provided that requirements in table 2.1-1 are met.Allow fuel debris, currently present at prospective storage sites, to be stored in the HI-STORM FW system.

6Revise Design Features the MPC-37, -89, and -32ML basket Design Features to clarify that the minimum cell ID and minimum cell wall thickness are nominal dimensions.Clarifying that the minimum cell ID and cell wall thickness are nominal dimensions to be consistent with the currently approved testing and acceptance for the basket panels. Per the applicant, this change would also clarify that local deviations from the basket ID and cell wall thickness may be possible.

As stated in the Federal Register (88 FR 949; 1/6/2023), the effective date of this CoC is March 22, 2023. The NRC safety evaluation report for this amended to the CoC (including the CoC itself and technical specifications) is enclosed. If you have any questions regarding this amended certificate, please contact Norma García Santos at (301) 415-6999 or Norma.GarcíaSantos@nrc.gov.

Sincerely, Yoira K. Diaz Sanabria, Chief Storage and Transportation Licensing Branch Division of Fuel Management Office of Nuclear Material Safety and Safeguards Docket No. 72-1032 CAC No.: 001028 EPID: L-2019-LLA-0231

Enclosures:

1. CoC No. 1032 Amendment No. 6

2. Appendix A. Technical Specifications

3. Appendix B. Approved Contents and Design Features

4. Final Safety Evaluation Report Signed by Diaz-Sanabria, Yoira on 02/15/23