LR-N14-0041, Response to Request for Information Regarding Flooding Aspects of Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident - Flood Hazard Reevaluation
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MAR 12 2014 LR-N1 4-0041 PSEG Nuclear LLC P.O. Box 236, Hancocks Bridge, NJ 08038-0236 PSEG Nuclear lLC 10 CFR 50.54(f)
U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001
Subject:
References:
Hope Creek Generating Station Renewed Facility Operating License No. NPF-57 NRC Docket No. 50-354 PSEG Nuclear LLC's Response to Request for Information Regarding Flooding Aspects of Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident-Hope Creek Generating Station Flood Hazard Reevaluation
- 1.
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
- 2.
NRC letter, "Prioritization of Response Due Dates for Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Flooding Hazard Reevaluations for Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident," dated May 1 1, 2012
- 3.
PSEG Letter LR-N13-0052, "Response to Request for Information Regarding Flooding Aspects of Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident-Hazard Reevaluation Report Extension Request,"
dated March 1 2, 2013
MAR l'2 2014 Page 2 LR-N14-0041 10 CFR 50.54(f)
- 4.
NRC Letter, "Salem Nuclear Generating Station, Unit Nos. 1 and 2 and Hope Creek Generating Station - Relaxation of Response Due Dates Regarding Flooding Hazard Reevaluations for Recommendation 2.1 of the Near-term Task Force Review of the Insights from the Fukushima Dai-ichi Accident," dated April 12, 2013
- 5.
NRC Interim Staff Guidance JLD-ISG-2012-05, "Guidance for Performing the Integrated Assessment for External Flooding,"
Revision 0, dated November 30, 2012 On March 12, 2012, the Nuclear Regulatory Commission (NRC) issued a request for information (Reference 1) pursuant to 10 CFR 50.54(f) to PSEG Nuclear LLC (PSEG),
associated with Near-Term Task Force (NTTF) Recommendation 2.1 for flooding. The 1 0 CFR 50.54(f) letter included a request for licensees under 10 CFR Part 50 to reevaluate the flood hazards at their sites against present-day regulatory guidance and methodologies being used for Early Site Permit (ESP) and Combined License reviews. provides the requested flood hazard reevaluation for the Hope Creek Generating Station (HCGS).
On May 11, 2012, the NRC issued a prioritization plan (Reference 2) that established an external flooding hazard reevaluation schedule for each licensee. The NRC's prioritization plan initially placed HCGS in Category 1, establishing a flood hazard reevaluation due date of March 12, 2013, because HCGS is co-located with an ESP site. As described in PSEG's extension request letter dated March 12, 2013 (Reference 3), changing NRC expectations regarding storm surge modeling methods prompted PSEG to reanalyze hurricane-related events in support of the ESP application. The storm surge reanalysis resulted in an impact to the HCGS flood hazard reevaluation schedule. By letter dated April 12, 2013 (Reference 4), the NRC approved PSEG's request to extend the HCGS flood hazard reevaluation submittal due date to March 12, 2014.
Table 3-1 of Enclosure 1 contains a comparison of current licensing basis (CLB) flood hazards and reevaluated flood hazards at HCGS. The reevaluated flood hazards are either bounded by the CLB flood hazards or otherwise determined to have no adverse impact on HCGS, with the exception of Local Intense Precipitation (LIP) effects. The CLB maximum flood height for a LIP event is 101.9 ft, Public Service Datum (PSD) arid the reevaluated LIP flood height is 102.6 ft PSD, which is below the HCGS flood protected elevations. Grade elevation at HCGS is approximately 101.5 ft PSD.
Section 4.1 of Enclosure 1 includes recommended interim actions to integrate severe weather forecast guidance specifically for a LIP event into existing operating procedures for closing watertight doors.
PSEG will incorporate this guidance into operating procedures by December 31, 2014.
Page 3 LR-N14-0041 10 CFR 50.54(f)
In accordance with the 10 CFR 50.54(f) letter, PSEG will perform an integrated assessment to address the LIP event, using NRC Interim Staff Guidance JLD-ISG-2012-05 (Reference 5). PSEG will transmit the integrated assessment to the NRC by March 11, 2016.
There are regulatory commitments contained in this letter as identified in Enclosure 2.
If you have any questions or require additional information, please do not hesitate to contact Mr. Brian Thomas at 856-339-2022.
I declare under penalty of perjury that the foregoing is true and correct.
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(Date)
Sincerely, Paul J. Davison Site Vice President Hope Creek Generating Station
Enclosures:
- 1. Hope Creek Generating Station Flood Hazard Reevaluation
- 2. Summary of Commitments cc:
Mr. E. Leeds, Director of Office of Nuclear Reactor Regulation Mr. W. Dean, Administrator, Region I, NRC Mr. J. Hughey, Project Manager, NRC NRC Senior Resident Inspector, Hope Creek Mr. P. Mulligan, Manager IV, NJBNE Hope Creek Commitment Tracking Coordinator PSEG Corporate Commitment Coordinator
LR-N14-0041 Hope Creek Generating Station Flood Hazard Reevaluation Hope Creek Generating Station PSEG Nuclear LLC
LR-N 14-0041 Summary of Commitments Commitment Committed Date or Commitment Type Milestone One-Time Programmatic Action (Yes/No)
(Yes/No)
- 1. PSEG will integrate severe December 31, 2014 Yes No weather forecast guidance specifically for a Local Intense Precipitation event into existing operating procedures for closing watertight doors based on the recommended interim actions in Section 4.1 of Enclosure 1.
- 2. PSEG will perform an March 11, 2016 Yes No integrated assessment of the Local Intense Precipitation event using NRC Interim Staff Guidance JLD-ISG-2012-05 Revision 0, "Guidance for Performing the Integrated Assessment for External Flooding." PSEG will transmit the integrated assessment to the NRC by the committed date.
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