ML23223A048

Request for Withholding Information from Public Disclosure for License Amendment Request to Use Framatome Small Break and Realistic Large Break LOCA Evaluation Methodologies for Establishing COLR Limits

ML23223A048
Person / Time
Site:	Millstone
Issue date:	08/18/2023
From:	Richard Guzman NRC/NRR/DORL/LPL1
To:	James Holloway Dominion Energy Nuclear Connecticut
References
EPID L-2023-LLA-0065, EPID L-2023-LLE-0013
Download: ML23223A048 (1)

Text

August 18, 2023

Mr. James E. Holloway Senior Vice President and Chief Nuclear Officer Innsbrook Technical Center 5000 Dominion Blvd., Floor: IN-2SW Glen Allen, VA 29060

SUBJECT:

REQUEST FOR WITHHOLDING INFORMATION FROM PUBLIC DISCLOSURE

- MILLSTONE POWER STATION UNIT 3 LICENSE AMENDMENT REQUEST TO USE FRAMATOME SMALL BREAK AND REALISTIC LARGE BREAK LOSS OF COOLANT ACCIDENT EVALUATION METHODOLOGIES FOR ESTABLISHING CORE OPERATING LIMITS AND EXEMPTION REQUEST FOR USE OF M5 CLADDING (EPIDS L-2023-LLA-0065 AND L-2023-LLE-0013)

Dear Mr. Holloway:

By letter dated May 2, 2023 (Agencywide Docu ments Access Management System (ADAMS)

Accession No. ML23123A277, Proprietary, Non-P ublic), Dominion Energy Nuclear Connecticut, Inc., submitted an affidavit dated March 2, 2023, executed by Byram Morris, Product Manager, Licensing & Regulatory Affairs for Framatome, Inc., requesting that the identified information contained in the following documents be withheld from public disclosure pursuant to Section 2.390 of Title 10 of the Code of Federal Regulations (10 CFR):

Attachment 3 titled ANP-4031P, Revision 0, Millstone Unit 3 Small Break LOCA Analysis with GAIA Fuel Design, Licensing Report (Proprietary)

Attachment 5 titled ANP-4032P, Revision 0, Millstone Unit 3 Realistic Large Break LOCA Analysis with GAIA Fuel Design, Licensing Report (Proprietary)

A nonproprietary copy of these documents has been placed in the U.S. Nuclear Regulatory Commissions (NRCs) Public Document Room and added to the NRC Library in ADAMS (ML23123A279).

The affidavit stated that the submitted information should be considered exempt from public disclosure for the following reasons:

4. These Documents contain information of a proprietary and confidential nature and is of the type customarily held in confidence by Framatome and not made available to the public. Based on my experience, I am aware that other companies regard information of the kind contained in these Documents as proprietary and confidential.

5. These Documents have been made available to the U.S. Nuclear Regulatory Commission in confidence with the request that the J. Holloway

information contained in these Documents be withheld from public disclosure. The request for withholding of proprietary information is made in accordance with 10 CFR 2.390. The information for which withholding from disclosure is requested qualifies under 10 CFR 2.390(a)(4) Trade secrets and commercial or financial information.

6. The following criteria are customarily applied by Framatome to determine whether information should be classified as proprietary:

(c) The information includes test data or analytical techniques concerning a process, methodology, or component, the application of which results in a competitive advantage for Framatome.

(d) The information reveals certain distinguishing aspects of a process, methodology, or component, the exclusive use of which provides a competitive advantage for Framatome in product optimization or marketability.

The NRC staff has reviewed your application and the material in accordance with the requirements of 10 CFR 2.390 and, on the basis of the statements in the affidavit, have determined that the submitted information sought to be withheld contains proprietary commercial information and should be withheld from public disclosure.

Therefore, the version(s) of the submitted information marked as proprietary will be withheld from public disclosure pursuant to 10 CFR 2.390(b)(5) and Section 103(b) of the Atomic Energy Act of 1954, as amended.

Withholding from public inspection shall not affect the right, if any, of persons properly and directly concerned to inspect the documents. If the need arises, NRC staff may send copies of this information to our consultants working in this area. We will, of course, ensure that the consultants have signed the appropriate agreements for handling proprietary information.

If the basis for withholding this information from public inspection should change in the future such that the information could then be made available for public inspection, you should promptly notify the NRC. You also should understand that the NRC may have cause to review this determination in the future, for example, if the scope of a Freedom of Information Act request includes your information. In all revi ew situations, if the NRC makes a determination adverse to the above, you will be notified in advance of any public disclosure.

J. Holloway

If you have any questions, please contact me at (301) 415-1030, or via email at Richard.Guzman@nrc.gov.

Sincerely,

/RA/

Richard V. Guzman, Senior Project Manager Plant Licensing Branch I Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation

Docket No. 50-423

cc: Listserv

ML23223A048 OFFICE NRR/DORL/LPL1/PM NRR/DORL/LPL1/LA NRR/DSS/SNSB/BC NAME RGuzman KEntz PSahd DATE 8/11/2023 8/14/2023 8/16/2023 OFFICE NRR/DORL/LPL1/BC NRR/DORL/LPL1/PM NAME HGonzález RGuzman DATE 8/18/2023 8/18/2023