ULNRC-06816, Withdrawal of Previously Submitted Enclosures Regarding License Amendment Request for Adoption of Alternative Source Term and Revision of Technical Specifications (LDCN 21-0015)

Withdrawal of Previously Submitted Enclosures Regarding License Amendment Request for Adoption of Alternative Source Term and Revision of Technical Specifications (LDCN 21-0015)

ML23129A830
Person / Time
Site:	Callaway
Issue date:	05/09/2023
From:	Jungmann B Ameren Missouri, Union Electric Co
To:	Office of Nuclear Reactor Regulation, Document Control Desk
References
ULNRC-06816
Download: ML23129A830 (1)

Text

Callaway Plant MISSOURI May 9, 2023 ULNRC-068 16 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 10 CFR 50.90 10 CFR 50.67 Ladies and Gentlemen:

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

RENEWED FACILITY OPERATING LICENSE NPF-30 WITHDRAWAL OF PREVIOUSLY SUBMITTED ENCLOSURES REGARDING LICENSE AMENDMENT REQUEST FOR ADOPTION OF ALTERNATIVE SOURCE TERM AND REVISION OF TECHNICAL SPECIFICATIONS (LDCN 21-0015)

References:

Provided on page 3 By letter dated September 28, 202 1 (Reference 1), Ameren Missouri submitted a license amendment request (LAR) for adopting the alternative source term methodology addressed in 1 0 CfR 50.67.

Subsequent to this LAR submittal, by letter dated December 1 , 2021 (Reference 2), Ameren Missouri submitted a supplement to the LAR in which fourteen enclosures were provided in order to make corrections and provide additional information. In particular, Enclosures 9 through 11 (ML21335A461 , ML21335A462, and ML21335A463) of Reference 2 provided the input and output files ofARCON96-NAI runs that were performed in support ofthe LAR.

In their request for additional information (RAT) dated October 14, 2022 (Reference 3), the NRC staff requested clarification of the ARCON inputs and results documented in the aforementioned Enclosures 9 through 1 1 Ameren Missouri provided a response to this RAT in the forni of an enclosure in a letter dated December 8, 2022 (Reference 4) which corrected the ARCON input files and conservatively revised the LAR dose analyses. The NRC staff indicated successful completion of confirmatory calculations with respect to the Reference 4 enclosure but requested Ameren Missouri withdraw Enclosures 9 through 1 1 of the December 1 , 2021 supplement to prevent confusion with respect to the submitted ARCON inputs and outputs. Ameren Missouri is hereby withdrawing Enclosures 9 through 83 15 County Road 459 Steedman, MO 65077 AmerenMissouri.com :.::

ULNRC-068 16 May 9, 2023 Page2of5 1 1 ofthe December 1, 2021 supplement (ML21335A461, ML21335A462, ML21335A463) in accordance with that request.

This letter does not contain new commitments.

Ifthere are any questions, 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, Brent L.

Senior Director, Nuclear Engineering Executed on: 6Ak

ULNRC-068 16 May 9, 2023 Page3of5

References:

1 . Arneren 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. Ameren Missouri letter ULNRC-06696, Supplement to License Amendment Request for Adoption of Alternative Source Term and Revision of Technical Specifications, dated December 1, 2021 (ADAMS Accession No. ML21335A452) 3 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-0177, transmitted via e-mail on October 14, 2022 (ADAMS Accession No. ML22287A095)

4. Ameren Missouri letter ULNRC-067$7, Response to Request for Additional Information Regarding License Amendment Request for Adoption of Alternate Source Term and Revision of Technical Specifications, dated December 8, 2022 (ADAMS Accession No. ML22342B265)

ULNRC-068 16 May 9, 2023 Page4of5 cc: Mr. Robert Lewis Regional Administrator U. S. Nuclear Regulatory Commission Region IV 1600 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. M. Chawla Project Manager, Callaway Plant Office ofNuclear Reactor Regulation U. S. Nuclear Regulatory Commission Mail Stop O8B1A Washington, DC 20555-000 1

ULNRC-068 16 May 9, 2023 Page5of5 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 Responses and Reports ULNRC Distribution:

F. M. Diya K. Scott D. E. Farnsworth W. A. Witt B. L. Jungmann T. A. Witt T. B. Elwood B. D. Richardson 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)