ULNRC-06065, Supplement to Ameren Missouri 180-Day Seismic Walkdown Response to NRC Letter, Request for Information Pursuant to 10 CFR 50.54(f) Recommendations 2.1, 2.3, and 9.3 of Near-Term Task Force Review of Insights from Fukushima..

Supplement to Ameren Missouri 180-Day Seismic Walkdown Response to NRC Letter, Request for Information Pursuant to 10 CFR 50.54(f) Recommendations 2.1, 2.3, and 9.3 of Near-Term Task Force Review of Insights from Fukushima..

ML14015A021
Person / Time
Site:	Callaway
Issue date:	01/14/2014
From:	Reasoner C Ameren Missouri, Union Electric Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
ULNRC-06065
Download: ML14015A021 (4)

Text

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Cleve Reasoner Vice President Engineering WAmeren Ameren Missouri Callaway Energy Center T 573.676.8241 MISSOURI F 573.676.4056 January 14, 2014 ULNRC-06065 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 10 CFR 50.54(+/-)

Ladies and Gentlemen:

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

FACILITY OPERATING LICENSE NPF-30 SUPPLEMENT TO AMEREN MISSOURI 180-DAY SEISMIC WALKDOWN RESPONSE TO NRC LETTER, "REQUEST FOR INFORMATION PURSUANT TO TITLE 10 OF THE CODE OF FEDERAL REGULATIONS 50.54(t) REGARDING RECOMMENDATIONS 2.1, 2.3, AND 9.3, OF THE NEAR-TERM TASK FORCE REVIEW OF INSIGHTS FROM THE FUKUSHIMA DAI-ICHI ACCIDENT"

References:

1. NRC letter, "Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(+/-) Regarding Recommendations 2.1, 2.3, and 9.3, of the Near-Term Task Force Review oflnsights from the Fukushima Dai-Ichi Accident," dated March 12, 2012

2. NRC letter to A. P. Heymer, Nuclear Energy Institute, "Endorsement of Electric Power Research Institute (EPRI) Draft Report 1025286, 'Seismic Walkdown Guidance,'" dated May 31,2012

4. ULNRC-05935, "Ameren Missouri 180-Day Seismic Walkdown Response to NRC Letter, "Request for Information Pursuant to Title 10 of the Code of Federal Regulations 10 CFR 50.54(+/-) Regarding Recommendations 2.1, 2.3, and 9.3, of the Near Term Task Force Review oflnsights from the Fukushima Dai-Ichi Accident," dated November 27, 2012

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ULNRC-06065 January 14, 2014 Page2 On March 12,2012, the Nuclear Regulatory Commission (NRC) issued Reference 1 to Ameren Missouri. Enclosure 3 of Reference 1 contains specific Requested Actions, Requested Information, and Required Responses associated with Recommendation 2.3 : Seismic.

For Seismic Recommendation 2.3, Enclosure 3 of Reference 1 states that within 180 days ofNRC endorsement of the walkdown guidance (Reference 2), each addressee will submit its final response for the requested information, including a list of any areas that are unable to be inspected due to inaccessibility and a schedule for when the walkdown will be completed.

On November 27,2012, Ameren Missouri provided the Callaway Plant Seismic Walkdown Report (Reference 3) in response to the request of Reference 1 for Seismic Recommendation 2.3. In that submittal, Ameren Missouri noted that some areas were inaccessible for inspection. As a result, Ameren Missouri committed to provide a supplement to the Seismic Walkdown Report that contains the supplemental seismic walkdown results. to this letter provides the results of the supplemental seismic walkdowns of inaccessible components. This submittal demonstrates compliance to the requirements ofEPRI Technical Report 1025286 (Reference 2), and therefore meets the intent of Enclosure 3 to NRC 50.54(f) letter (Reference 1).

This letter does not contain new commitments.

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

I declare under penalty of perjury that the foregoing is true and correct.

Sincerely, Executed on:

Cleveland 0. Reasoner Vice President, Engineering EMP

Enclosure:

1. Ameren Missouri Callaway Energy Center Supplemental Information for Post-Fukushima NTTF 2.3 Seismic Walkdown Submittal Report, WCAP-17675-NP, Supplement 1, Revision 0, December 2013

ULNRC-06065 January 14, 2014 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 ofNuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop 0-8B 1 Washington, DC 20555-2738 Mr. Eric J. Leeds Director, Office ofNuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop 0-13H16M Washington, DC 20555-0001 Mr. Jack Davis Director, Mitigation Strategies Directorate Office ofNuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

ULNRC-06065 January 14, 2014 Page4 Index and send hardcopy to QA File Al60.0761 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:

A. C. Heflin F. M. Diya C. 0 . Reasoner III L. H. Graessle S. A. Maglio T. B. Elwood J. L. Fortman J. T. Patterson Corporate Communications NSRB Secretary STARS Regulatory Affairs Mr. John O'Neill (Pillsbury Winthrop Shaw Pittman LLP)

Missouri Public Service Commission