ML23299A196
| ML23299A196 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 10/26/2023 |
| From: | Jungmann B Ameren Missouri, Union Electric Co |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| Shared Package | |
| ML23299A195 | List: |
| References | |
| ULNRC-06831 | |
| Download: ML23299A196 (1) | |
Text
r.Aiiieren Callaway Plant MISSOURI October 26, 2023 ULNRC-0683 1 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 10 CFR 50.55a Ladies and Gentlemen:
DOCKET NUMBER 50-483 CALLAWAY PLANT UNIT 1 UNION ELECTRIC CO.
RENEWED FACILITY OPERATING LICENSE NPF-30 REQUEST FOR RELIEF FROM REQUIREMENTS OF ASME BPV CODE, SECTION XL SUBSECTION IWL REGARDING EXAMINATION AND TESTING OF THE UNBONDED POST-TENSIONING SYSTEM (RELIEF REQUEST C3R-01)
Pursuant to 10 CFR 50.55a(z)(1), Union Electric Company (Ameren Missouri) requests NRC approval ofenclosed reliefrequest C3R-01 for the Callaway Energy Center (Callaway Plant).
American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel (BPV) Code,Section XI, Subsection IWL requires periodic visual examination of containment concrete as well as visual examination and physical testing ofpost-tensioning system. Ameren Missouri proposes extending the interval for post-tensioning system examinations and testing and detailed visual examination of concrete adjacent to tendon bearing plates from 5 years to 1 0 years.
Callaways Containment Exterior Concrete and Tendon Inspection Program complies with 2007 Edition through 200$ Addenda ofthe ASME BPV Code,Section XI, Subsection IWL. The third interval of Callaways Containment Exterior Concrete and Tendon Inspection Program began on September 9, 2016 and is scheduled to end on September 8, 2026.
Supporting information, including the proposed alternative and justification for the request, is provided in the enclosed relief request (Enclosure 1) and technical report (Enclosure 2). Ameren Missouri respectfully requests review and approval ofrequest C3R-01 by April 15, 2024. This approval date is being requested to support the orderly coordination of work preparations required to perform the next scheduled 5-year post-tensioning system examination and test (i.e., 40th year surveillance) which is to be performed in the Fall of 2024.
8315 County Road 459 Steedman, MO 65077 AmerenMissouri.com
ULNRC-0683 1 Page2of4 This letter does not contain new commitments.
If there are any questions, please contact E. S. Smith at 3 14-225-1 71 1.
Sincerely,
Enclosure:
- 1. 10 CFR 50.55a ReliefRequest C3R-O1
- 2. Callaway RR Technical Report Brent L. Jungmann Senior Director, Nuclear Engineering
ULNRC-0683 1 Page3of4 cc:
Mr. John Monninger 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
$201 NRC Road Steedman, MO 65077 Mr. M. Chawla Project Manager, Callaway Plant Office ofNuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop O$B1A Washington, DC 20555-000 1
ULNRC-0683 1 Page4of4 Index and send hardcopy to QA File A160.0761 Hardcopy:
Certrec Corporation 6500 West Freeway, Suite 400 Fort Worth, 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 Other Situations ULNRC Distribution:
F. M. Diya K. C. Scott W. A. Witt B. L. Jungmann T. A. Witt T. B. Elwood NSRB Secretary STARS Regulatory Affairs Mr. Jay Silberg (Pillsbury Winthrop Shaw Pittman LLP)
Ms. Kathleen McNelis (Public Service Commission)
Ms. Claire Eubanks (Public Service Commission)