ULNRC-06754, Response to Request for Additional Information Regarding Licensee Amendment Request for Adoption of Alternate Source Term and Revision of Technical Specifications

Response to Request for Additional Information Regarding Licensee Amendment Request for Adoption of Alternate Source Term and Revision of Technical Specifications

ML22186A104
Person / Time
Site:	Callaway
Issue date:	07/05/2022
From:	Witt T Ameren Missouri, Union Electric Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
Shared Package
ML22186A103	List: ML22186A105 ULNRC-06754, Response to Request for Additional Information Regarding Licensee Amendment Request for Adoption of Alternate Source Term and Revision of Technical Specifications
References
LDCN21-0015, ULNRC-06754
Download: ML22186A104 (5)

Text

A/1II1erefl Callaway Plant MISSOURI July 5, 2022 ULNRC-06754 u.s. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-000 1 10 CFR 50.90 Ladies and Gentlemen:

DOCKET NUMBER 50-483 CALLAWAY PLANT UNIT 1 UNION ELECTRIC CO.

RENEWED FACILITY OPERATING LICENSE NPF-30 RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION REGARDING LICENSE AMENDMENT REQUEST FOR ADOPTION OF ALTERNATE SOURCE TERM AND REVISION OF TECHNICAL SPECIFICATIONS (LDCN 21-0015)

On September 28, 2021 and per Reference 1 included in the list of references on page 3 of this letter, Ameren Missouri submitted a license amendment request (LAR) for adopting the alternative source term methodology addressed in 1 0 CFR 50.67 and Regulatory Guide 1 1 83, Rev 0, Alternative Radiological Source Terms for Evaluating Design Basis Accidents at Nuclear Power Reactors.

following submittal of the LAR, the need to make corrections to the LAR, in regard to information designated as security sensitive, was identified. Also, the need to provide supplemental information was identified by the NRC staff, first in an e-mail dated November 4, 2021 (Reference 2) and then in a follow-up letter dated November 30, 2021 (Reference 3). A supplement to the Reference 1 LAR addressing these needs was submitted by letter dated December 1, 2021 (Reference 4).

This letter is submitted in order to respond to a request for additional information (RAT) electronically received (via e-mail) from the NRC on June 2, 2022 (Reference 5). Responses to the individual RAT requests/questions are hereby provided in the enclosure to this letter.

In accordance with 10 CFR 50.91 Notice for public comment; State consultation, Section (b)(l), a copy of this supplement to the Reference 1 LAR and regulatory exemption request is being provided to the designated Missouri State official. This supplement was reviewed by the Callaway Plant Onsite Review Committee.

83 15 County Road 459 : Steedman, MO 65077 AmerenMissoun.com

ULNRC-06754 July 5, 2022 Page 2 of 5 For any questions regarding this submittal, please contact Tom Elwood (Supervisor, Regulatory Affairs and Licensing) at (314) 225-1905.

I declare under penalty ofperjury that the foregoing is true and correct.

Sincerely, Todd A. Witt Manager, Regulatory Affairs Executed on: O1 YS tZ...

Enclosure:

Ameren Missouri Response to NRC RAIs

ULNRC-06754 July 5, 2022 Page 3 of 5

References:

1 . Ameren Missouri letter ULNRC-06636, License Amendment Request for Adoption of Alternate Source Term and Revision ofTechnical Specifications, dated September 28, 2021 (ADAMS Accession No. ML21272A168)

2. NRR e-mail capture,

Subject:

LIC-109 Acceptance Review (Unacceptable for Review with Opportunity to Supplement) Callaway Plant, Unit 1 License Amendment Request Callaway Plant, Unit 1 Adoption of Alternate Source Term and Revision of TSs EPID L 2021-LLA-0177, dated November 4, 2021 (ADAMS Accession No. ML21308A069) 3 . NRC letter, Supplemental Information Needed for Acceptance of Requested Licensing Actions RE: License Amendment Request for Adoption ofAltemate Source term and Revision ofteclmical Specifications (EPID L-2021-LLA-0177), transmitted via e-mail on November 30, 2021 (ADAMS Accession No. ML21319A006)

4. Ameren Missouri letter ULNRC-06696, Supplement to License Amendment Request for Adoption ofAltemative Source Term and Revision ofTechnical Specifications, dated December 1, 2021 (ADAMS Accession No. ML21335A452)

5. NRC letter, final Request for Additional Information Callaway Plant, Unit 1 License Amendment Request for Adoption of Alternate Source Term and Revision of Technical Specifications EPID L-2021 -LLA-01 77, transmitted via e-mail on June 2, 2022 (ADAMS Accession No. ML22154A012)

ULNRC-06754 July 5, 2022 Page 4 of 5 cc: Mr. Scott A. Morris Regional Administrator U. S. Nuclear Regulatory Commission Region IV 1 600 East Lamar Boulevard Arlington, TX 76011-4511 Senior Resident Inspector Callaway Resident Office U.S. Nuclear Regulatory Commission 8201 NRC Road Steedman, MO 65077 Mr. Mahesh Chawla Project Manager, Callaway Plant Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Mail Stop 081A Washington, DC 20555-0001

ULNRC-06754 July 5, 2022 Page 5 of5 Index and send hardcopy to QA File A160.0761 Hardcopy Certrec Corporation 6500 West freeway, Suite 400 FortWorth,TX 76116

( Certrec receives ALL attachments as long as they are non-safeguards and may be publicly disclosed.)

Electronic distribution for the following can be made via Tech Spec ULNRC Distributiofl F. M. Diya B. L. Cox F. I. Bianco D. E. Farnsworth T. A. Witt T. B. Elwood R.J. Andreasen NSRB Secretary STARS Regulatory Affairs Mr. Jay Silberg (Pillsbury Winthrop Shaw Pittman LLP)

Ms. Claire Eubanks (Missouri Public Service Commission)

Mr. Aaron Schmidt (DNR)