ML12352A070

Seismic Walkdown Report - Response to NRC Request for Information Pursuant to 10CFR50.54(f) Regarding the Seismic Aspects of Recommendation 2.3 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident

ML12352A070
Person / Time
Site:	Grand Gulf
Issue date:	11/26/2012
From:	Mike Perito Entergy Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
GNRO-2012/00141
Download: ML12352A070 (4)

Text

Q Entergy Entergy Operations, Inc.P. O. Box 756 Port Gibson, MS 39150 Michael Perito Vice President, Operations Grand Gulf Nuclear Station Tel. (601) 437-6409 GNRO-2012/00141 November 26, 2012 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk 11555 Rockville Pike Rockville, MD 20852-0001

SUBJECT:

Seismic Walkdown Report -Entergy's Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding the Seismic Aspects of Recommendation 2.3 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident Grand Gulf Nuclear Station, Unit No. 1 Docket No. 50-416 License No. NPF-29

REFERENCE:

1. NRC Letter to Entergy, Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendations 2.1, 2.3, and 9.3 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident, March 12, 2012 (ML12053A340)

2. Entergy Letter to NRC, Entergy's 120-Day Response to NRC Request for Information (RFI) Pursuant to 10 CFR 50.54(f)Regarding the Seismic Aspects of Recommendation 2.3 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident, dated July 10, 2012 (GNRO-2012/00068)

Dear Sir or Madam:

On March 12, 2012, the NRC issued Reference 1 to all power reactor licensees.

Enclosure 3 of the Reference 1 contains specific requested actions, requested information, and required responses associated with Recommendation 2.3 for seismic walkdowns.

Entergy Operations, Inc. (Entergy) confirmed in Reference 2 that it would use the seismic walkdown procedure (EPRI Report 1025286, Seismic Walkdown Guidance For Resolution of Fukushima Near-Term Task Force Recommendation 2.3: Seismic) as endorsed by the NRC as the basis to conduct the walkdowns and develop the needed information at Grand Gulf Nuclear Station (GGNS).Pursuant to Required Response 2 in Enclosure 3 of Reference 1, Entergy is providing the Seismic Walkdown Report for GGNS in Attachment

1. All potentially adverse seismic conditions identified in the report have been evaluated in the Corrective Action Program for operability concerns and no immediate operability concerns have been identified.

Should you have any questions regarding this submittal, please Jeffery A. Seiter at 601-437-2344.

GNRO-2012/00141 Page 2 of 3 This letter contains new regulatory commitments, which are identified in Attachment 2.I declare under penalty of perjury that the foregoing is true and correct; executed on November 26, 2012.MP / jas Attachments:

1. Grand Gulf Nuclear Station (GGNS) Seismic Walkdown Report 2. List of Regulatory Commitments cc: (see next page)

GNRO-2012/00141 Page 3 of 3 cc: Mr. Elmo E. Collins, Jr.Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 1600 East Lamar Boulevard Arlington, TX 76011-4511 U. S. Nuclear Regulatory Commission Attn: Director, Office of Nuclear Reactor Regulation One White Flint North 11555 Rockville Pike Rockville, MD 20852 NRC Senior Resident Inspector Grand Gulf Nuclear Station Port Gibson, MS 39150 U. S. Nuclear Regulatory Commission ATTN: Mr. A. Wang, NRR/DORL Mail Stop OWFN/8 G14 11555 Rockville Pike Rockville, MD 20852-2378 U. S. Nuclear Regulatory Commission ATTN: Robert J. Fretz Jr.OWFN, Mailstop # 4A15A 11555 Rockville Pike Rockville, MD 20852-2378 U. S. Nuclear Regulatory Commission ATTN: Robert L. Dennig OWFN, Mailstop # 1OE1 11555 Rockville Pike Rockville, MD 20852-2378 U. S. Nuclear Regulatory Commission Attn: Ms. Jessica A. Kratchman OWFN, Mailstop # 9D2 11555 Rockville Pike Rockville, MD 20852-2378 U. S. Nuclear Regulatory Commission Attn: Mr. Eric E. Bowman OWFN, Mailstop # 12D20 11555 Rockville Pike Rockville, MD 20852-2378 U. S. Nuclear Regulatory Commission Attn: Ms. Eileen M. Mckenna TWFN, Mailstop # 1OD5 11555 Rockville Pike Rockville, MD 20852-2378 Attachment 2 to GNRO-2012/00141 Page 1 of 1 List of Regulatory Commitments The following table identifies those actions committed to by Entergy in this document.

Any other statements in this submittal are provided for information purposes and are not considered to be regulatory commitments.

TYPE (Check One) SCHEDULED COMMITMENT ONE- COMPLETION DATE ONE CONTINUING (If Required)TIME ACTION COMPLIANCE Entergy will perform walkdowns for equipment During the next that could not be inspected as identified in [V] scheduled refueling Section 6.3 of the Seismic Walkdown Report. outage, Spring 2014.Entergy will submit an updated Seismic April 30, 2014 Walkdown Report. ,]Api3021 Entergy will resolve the potentially adverse seismic conditions as identified in Section 8.2 of the Seismic Walkdown Report.CR-GGN-2012-11077 closed to CR-GGN-2012-11932 CA-3 CR-GGN-2012-11080 closed to WO-328051 CR-GGN-2012-0034 CA-67 CR-GGN-2012-11128 (WO-328052)

CR-GGN-2012-11126 closed to CR-GGN-2012-11932 CA-4 CR-GGN-2012-11254 closed to WO-328693 CR-GGN-2012-11255 closed to WO-329993 CR-GGN-2012-11306 closed to WO-328692 CR-GGN-2012-11334 closed to WO-329108 CR-GGN-2012-11335 closed to CR-GGN-2012-11932 CA-4 CR-GGN-2012-11456 closed to WO-329372 CR-GGN-2012-11457 closed to WO-329359 CR-GGN-2012-11458 closed to WO-329360 CR-GGN-2012-11461 closed to WO-329362 CR-GGN-2012-11463 closed to WO-329365 CR-GGN-2012-11465 closed to WO-369362 CR-GGN-2012-11311 closed to WO-328676 CR-GGN-2012-11312 closed to WO-328677 CR-GGN-2012-11318 closed to WO-328680 CR-GGN-2012-11343 closed to WO-329298[V']Six months after startup from the next scheduled refueling outage, Spring 2014