ULNRC-06192, Retraction of Request for Relaxation from NRC Order EA-12-049

Retraction of Request for Relaxation from NRC Order EA-12-049

ML15049A364
Person / Time
Site:	Callaway
Issue date:	02/18/2015
From:	Maglio S Ameren Missouri, Union Electric Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
EA-12-049, ULNRC-06192
Download: ML15049A364 (4)

Text

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WAmeren Callaway Plant MISSOURI

February 18, 2015 ULNRC-06192 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 NRC Order EA-12-049 Ladies and Gentlemen:

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

FACILITY OPERATING LICENSE NPF-30 RETRACTION OF REQUEST FOR RELAXATION FROM NRC ORDER EA-12-049

References:

1. ULNRC-06131, "Request for Relaxation from NRC Order EA-12-049, 'Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events,"' dated August 1, 2014

2. ULNRC-06135, "Third Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events (Order Number EA-12-049),"

dated August 28, 2014 On August 1, 2014, Union Electric Co. (dba Ameren Missouri) submitted a request for relaxation (Reference 1) of the requirements contained in Order EA-12-049. The request concerned the design of the FLEX storage building roll-up door(s) and "hardened" Condensate Storage Tank(s) (CST) to be constructed at the Callaway Plant in response to the Order, specifically in regard to the use of Regulatory Guide (RG) 1.76 Revision 1.

However, based on conversations between the NRC and Ameren Missouri held in August 2014, Ameren Missouri is retracting the request. It was determined that the use of RG 1. 76 Revision 1 for the construction of the new hardened CST(s) and FLEX storage building was a deviation from NEI 12-06, and that deviations from NEI 12-06 do not require a relaxation request. Such deviations, including the use of any alternate methods from NEI 12-06, are required to be reported in the next six-month

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.......................................................................................................................... PO Box 620 Fulton, MD 65251 AmerenMissouri.com ................

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STARS

• Alliance

ULNRC-06192 February 18, 2015 Page2 FLEX update submittal. Callaway Plant provided an alternate method for the construction of the new hardened CST(s) and the FLEX storage building roll-up door(s) in Reference 2.

This letter does not contain new commitments.

If you have any questions concerning the content of this letter, please contact Scott Maglio, Manager, Regulatory Affairs, at (573) 676-8719.

Sincerely,

~~~gl~

Manager, Regulatory Affairs

ULNRC-06192 February 18, 2015 Page 3 cc: 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. Fred Lyon Project Manager, Callaway Plant Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop 0-8B 1 Washington, DC 20555-2738 Mr. William Dean Director, Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop 0-13H16M Washington, DC 20555-0001 Mr. Jack Davis Director, Mitigation Strategies Directorate Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

ULNRC-06192 February 18, 2015 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 Responses and Reports ULNRC Distribution:

F. M. Diya T. E. Herrmann D.W. Neterer M. A. McLachlan L. H. Graessle S. A. Maglio T. B. Elwood J. T. Patterson J. L. Fortman D.M. Stepanovic B.E.Huhmann Corporate Communications NSRB Secretary STARS Regulatory Affairs Mr. John O'Neill (Pillsbury Winthrop Shaw Pittman LLP)