ULNRC-06066, Supplement to RAI B2.1-7-5a

Supplement to RAI B2.1-7-5a

ML13360A303
Person / Time
Site:	Callaway
Issue date:	12/20/2013
From:	Kovaleski S Ameren Missouri, Union Electric Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation, NRC Region 4
Shared Package
ML13360A301	List: ML13360A302 ULNRC-06066, Supplement to RAI B2.1-7-5a
References
ULNRC-06066
Download: ML13360A303 (4)

Text

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'WAmeren Callaway Plant MISSOURI December 20,2013 ULNRC-06066 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 10 CFR 2.101 10 CFR 2.109(b) 10 CFR 50.4 10 CFR 50.30 10 CFR 51.53(c) 10 CFR 54 Ladies and Gentlemen:

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

FACILITY OPERATING LICENSE NPF-30 SUPPLEMENT TO RAI B2.1.7-5a

References:

1) ULNRC-05830, dated December 15, 2011

2) ULNRC-05928, dated November 8, 2012 By the Reference I letter, Union Electric Company (Ameren Missouri) submitted a license renewal application (LRA) for Callaway Plant Unit 1. Reference 2 transmitted responses to LRA Request for Additional Information (RAI) Set #15. In telephone conversations held between the staff and Ameren Missouri personnel on November 26, 2013 and December 18, 2013 it was agreed that the response to RAI B2.1.7-5a did not address a portion of the request with respect to providing limitations on the applicability of the 10 percent increase in allowable stresses given in Design Guide ME-013, "Pipewall Thickness." Enclosure 1 provides a supplemental response to the RAI to address this oversight.

If you have any questions with regard to this update, please contact me at (573) 489-9435 or David Shafer at 314-800-8003.

PO Box 620 Fulton, MD 65251 AmerenMissouri. com

ULNRC-06066 December 20, 2013 Page 2 I declare under penalty of perjury that the foregoing is true and correct.

Sincerely, Executed on: bece..rYl bc:...r .lO , :l-0 I*~

Sarah Kovaleski Director, Engineering Design DES/nls

Enclosure:

1) Request for Additional Information (RAI) Set #15 Responses, Supplement to RAI B2.1.7-5a

ULNRC-06066 December 20, 2013 Page 3 cc: U.S. Nuclear Regulatory Commission (Original)

Attn: Document Control Desk Washington, DC 20555-0001 Mr. Marc L. Dapas 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. Samuel Cuadrado De Jesus Project Branch 1 Division of License Renewal Office ofNuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop 0-llFl Washington, DC 20555 Mr. Fred Lyon Project Manager, Callaway Plant Office ofNuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop 0-8B 1 Washington, DC 20555-2738 Mr. Gregory A. Pick U.S. Nuclear Regulatory Commission Region IV 1600 East Lamar Boulevard Arlington, TX 76011-4511

ULNRC-06066 December 20,2013 Page4 Index and send hardcopy to QA File A160.0761 Hardcopy:

Certrec Corporation 4150 International Plaza Suite 820 Fort Worth, TX 76109 (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 Distribution:

A. C. Heflin F. M. Diya C. 0. Reasoner III D. W. Neterer B. L. Cox L. H. Graessle J. S. Geyer S. A. Maglio B. C. Daniels NSRB Secretary M. A. McLachlan G. S. Kremer S. G. Kovaleski T. B. Elwood G. G. Yates E. A. Blocher (STARS PAM COB)

STARS Regulatory Affairs Mr. John O'Neill (Pillsbury Winthrop Shaw Pittman LLP)

Missouri Public Service Commission Ms. Leanne Tippett-Mosby (DNR)