ML13120A185

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Supplemental 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
ML13120A185
Person / Time
Site: Oyster Creek
Issue date: 04/26/2013
From: David Helker
Exelon Generation Co
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
RA-13-022, RS-13-065
Download: ML13120A185 (2)


Text

14nwExelon Generation,, 10 CFR 50.54(f)RS-1 3-065 RA-13-022 April 26, 2013 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk 11555 Rockville Pike Rockville, MD 20852 Oyster Creek Nuclear Generating Station Renewed Facility Operating License No. DPR-16 NRC Docket No. 50-219

Subject:

Supplemental 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

References:

1. Exelon Generation Company, LLC 180-day 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, dated November 19, 2012 (RS-12-177)
2. NRC Letter, 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, dated March 12, 2012 In Reference 1, Exelon Generation Company, LLC (EGC) provided the Oyster Creek Nuclear Generating Station (OCNGS) seismic walkdown report in accordance with the NRC Request for Information (Reference 2). The OCNGS seismic walkdown report documented the plant walkdowns performed to identify and address plant-specific vulnerabilities and verify the adequacies of monitoring and maintenance procedures.

In Table E-2 of Reference 1, EGC provided the list of the six (6) OCNGS electrical cabinets that required supplemental inspections.

EGC committed to complete the supplemental inspection of these electrical cabinets by December 31, 2012. In Table E-1 of Reference 1, EGC provided the list of the sixteen (16) items deferred due to inaccessibility.

EGC committed to complete the walkdown inspections of these items by December 31, 2018.

U.S. Nuclear Regulatory Commission Supplemental Response to 50.54(f) Letter NTTF Recommendation 2.3: Seismic April 26, 2013 Page 2 This letter provides the results of the completed supplemental walkdown inspections performed for the six (6) electrical cabinets identified in Table E-2 of Reference

1. Additionally, this letter provides the results of the inspections completed for fifteen (15) of the sixteen (16) items identified in Table E-1 of Reference
1. These inspections were completed as of December 31, 2012.No degraded, nonconforming, or unanalyzed conditions that required either immediate or follow-on actions were identified.

Enclosure 1 to this letter provides the updated OCNGS Seismic Walkdown Report incorporating the results of the completed supplemental inspections of the electrical cabinets identified in Table E-2 of Reference 1, and the results of the walkdown inspections completed for fifteen (15)of the sixteen (16) items identified in Table E-1 of Reference

1. The results of these walkdown inspections are specifically addressed in Annex A of Enclosure 1.This letter contains no new regulatory commitments.

Should you have any questions concerning the content of this letter, please contact Ron Gaston at (630) 657-3359.I declare under penalty of perjury that the foregoing is true and correct. Executed on the 26th day of April 2013.Respectfully, David P. Helker Manager -Licensing

& Regulatory Affairs Exelon Generation Company, LLC

Enclosures:

1. Seismic Walkdown Report In Response To The 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic Updated Transmittal
  1. 1 for the Oyster Creek Generating Station, Correspondence No. RS-13-065 cc: Director, Office of Nuclear Reactor Regulation (with Enclosure 1 via CD)Regional Administrator

-NRC Region I (with Enclosure 1 via CD)NRC Senior Resident Inspector

-OCNGS (with Enclosure 1 via CD)NRC Project Manager, NRR -OCNGS (with Enclosure 1 via CD)Manager, Bureau of Nuclear Engineering

-New Jersey Department of Environmental Protection (with Enclosure 1 via CD)Mayor of Lacey Township, Forked River, NJ (with Enclosure 1 via CD)