ULNRC-06818, Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate .

Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate .

ML23156A636
Person / Time
Site:	Callaway
Issue date:	06/05/2023
From:	Witt T Ameren Missouri, Union Electric Co
To:	Office of Nuclear Reactor Regulation, Document Control Desk
Shared Package
ML23156A635	List: ML23156A637 ULNRC-06818, Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate .
References
ULNRC-06818
Download: ML23156A636 (1)

Text

Aiiier MISSOURi en Callaway Plant June 5, 2023 ULNRC-068 18 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 TO REVISE CALLAWAY PLANT, UNIT 1 TECHNICAL SPECIFICATION 5.5.16, CONTAINMENT LEAKAGE RATE TESTING PROGRAM, FOR PERMANENT EXTENSION OF TYPE A AND TYPE C LEAK RATE TEST FREQUENCIES (LDCN 2020-0004)

References:

1 . Ameren Missouri letter ULNRC-06765, License Amendment Request to Revise Callaway Plant, Unit 1 Technical Specification 5.5 16, Containment Leakage Rate Testing Program, for Permanent Extension of Type A and Type C Leak Rate Test Frequencies (LDCN 2020-0004), dated November 3, 2022 (ADAMS Accession No. ML22307A310)

2. NRC Letter, Final Request for Additional Information Callaway Plant, Unit 1 License Amendment Request to revise TS 5 .5. 1 6 for Permanent Extension of Integrated Leak Rate Testing EPID L-2022-LLA-0165, transmitted via e-mail on April 5, 2023 (ADAMS Accession No. ML23096A007)

By letter dated November 3, 2022 (Reference 1), Ameren Missouri (Union Electric) submitted a license amendment request to revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, to allow for the permanent extension of the Type A Integrated Leak Rate Testing (ILRT) and Type C Leak Rate Testing frequencies based on the guidance in NEI 94-01, Industry Guideline for Implementing Performance-Based Option of 10 CFR 50, Appendix I, (Rev. 3-A).

83 15 cDountr Ioad 159 : Steedman, l\I 65077 : J\.rtiereii1\lissoii.ri.corri.

ULNRC-068 1$

June 5, 2023 Page 2 of 4 During its review of the license amendment, the NRC staff determined that additional information is required to complete its review. The NRC electronically transmitted a request for additional information (RAT) to Ameren Missouri on April 5, 2023 (Reference 2) and requested that the response be provided within 60 days of receipt. Ameren Missouris response to the RAT is hereby provided per the Enclosure to this letter.

This letter does not contain new commitments.

If there are any questions, please contact Mr. 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: 06 05- ZSJt3

Enclosure:

Response to Request for Additional Information Regarding License Amendment Request for Permanent Extension of Type A and Type C Leak Rate Test Frequencies

ULNRC-068 18 June 5, 2023 Page 3 of 4 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 O2B1A Washington, DC 20555-0001

ULNRC-068 18 June 5, 2023 Page 4 of 4 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. C. Scott D. E. Farnsworth B. L. Jungmann T. A. Witt T. B. Elwood NSRB Secretary STARS Regulatory Affairs Mr. Jay Silberg (Pillsbury Winthrop Shaw Pittman LLP)

Mr. Aaron Schmidt (DNR)

Missouri Public Service Commission