ML19218A125

Letter to L. Hinojosa Request for Supplemental Information for the Review of the Model No. HI-STAR 180 Package (W/Enclosure)

ML19218A125
Person / Time
Site:	07109325
Issue date:	08/07/2019
From:	Pierre Saverot Spent Fuel Licensing Branch
To:	Hinojosa L Holtec
Saverot P
References
EPID L-2019-LLA-0122
Download: ML19218A125 (4)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 August 7, 2019 Mr. Luis Hinojosa Holtec International 1 Holtec Blvd.

Camden, NJ 08104

SUBJECT:

REQUEST FOR SUPPLEMENTAL INFORMATION FOR THE REVIEW OF THE MODEL NO. HI-STAR 180 PACKAGE

Dear Mr. Hinojosa:

By letter dated June 21, 2019, Holtec International submitted an application for Certificate of Compliance No. 9325, Revision No. 3, for the Model No. HI-STAR 180 package. The U.S.

Nuclear Regulatory Commission staff (the staff) performed an acceptance review of your application to determine if it contained sufficient technical information in scope and depth to allow the staff to complete a detailed technical review.

This letter is to advise you that the information needed to continue our review is described as request for supplemental information (RSI) in the enclosure to this letter. Addressing the RSI does not preclude the staff from issuing further requests for additional information (RAIs) during the course of the detailed technical review of this application.

In order to schedule our technical review, your response should be provided by September 5, 2019. If the response is not received by this date, the application may not be accepted for review and the staff may discontinue any further review.

Please reference Docket No. 71-9325 and EPID L-2019-LLA-0122 in future correspondence related to this request. If you have any questions regarding this matter, I may be contacted at (301) 415-7505.

Sincerely,

/RA John McKirgan Acting for/

Pierre Saverot, Project Manager Spent Fuel Licensing Branch Division of Spent Fuel Management Office of Nuclear Material Safety and Safeguards Docket No. 71-9325 EPID L-2019-LLA-0122

Enclosure:

Request for Supplemental Information

L. Hinojosa REQUEST FOR SUPPLEMENTAL INFORMATION FOR THE REVIEW OF THE MODEL NO.

HI-STAR 180 PACKAGE, DOCUMENT DATE: August 7, 2019 DISTRIBUTION: SFST r/f, M. Layton, ADimitriadis, RI BBonser, RII MKunowski, RIII GWarnick, RIV G :\SFST\Saverot\71-9325 HI-STAR 180\RSI3letter.doc ADAMS Package No. : ML19218A125 OFC: DSFM E DSFM E DSFM DSFM C DSFM C DSFM C NAME: PSaverot JSolis CKenny YDiaz- SFigueroa JMcKirgan Sanabria DATE: 08/01/19 08/01/19 08/05/19 08/05/19 08/05/19 08/07/2019 OFFICIAL RECORD COPY

Request for Supplemental Information Holtec International Docket No. 71-9325 Model No. HI-STAR 180 Package By letter dated June 21, 2019, Holtec International (Holtec) submitted an application for Certificate of Compliance No. 9325, Revision No. 3, for the Model No. HI-STAR 180 package.

This request for supplemental information (RSI) identifies information needed by the U.S.

Nuclear Regulatory Commission staff (the staff) in connection with its acceptance review of the Model No. HI-STAR 180 package application to confirm whether the applicant has submitted a complete application in compliance with regulatory requirements.

Chapter 3 - Thermal Evaluation Provide calculations and analysis results for cases when cyclic vacuum drying is used.

Section 3.3.5 of the application states that, for high burnup fuel, the cyclic drying method is used to avoid exceeding ISG-11, Revision 3 limits. This section also states that the permissible time for heat-up/cooldown cycles is a function of the cask heat loads for which a suitable methodology is prescribed to compute heat load specific cyclic drying durations.

However, the application does not include calculations or analyses to demonstrate that temperatures will remain below the criteria specified in ISG-11, Rev. 3 for cyclic vacuum drying of high burnup fuel.

The staff needs this information to determine compliance with allowable cladding temperature limits during cyclic drying operations.

This information is needed to determine compliance with 10 CFR Part 71.71.

Chapter 4 - Containment Evaluation Observation Provide product vendor justification for the temperature limits for the Technetics seal design with a silver sealing liner. In addition, clarify if there are any chemical, galvanic, or other reactions due to the Technetics seal jacket material change.

Proposed change PC-23 refers to a seal design featuring a silver sealing liner, instead of aluminum jacket, for the HI-STAR 180 Technetics seals. For the staff to evaluate this type of change, vendor data sheets are necessary for staff to verify any change in seal temperature limit.

Enclosure

Material compatibility is necessary to ensure there are no significant chemical, galvanic, or other reactions among the packaging components, or between the packaging components and the packaging contents.

This information is needed to determine compliance with 10 CFR 71.43(d), 71.51(a)(1) and (2).