ML13057A612
| ML13057A612 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 11/05/2008 |
| From: | Office of Information Services |
| To: | |
| References | |
| FOIA/PA-2012-0325 | |
| Download: ML13057A612 (3) | |
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Oconee Site Flood Protection NRC Meeting with Duke Energy Carolinas, LLC November 5, 2008 r~jU.S.NRC
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Purpose
- Discuss concerns with SSF licensing basis
- Discuss short-term interim measures for ONS operation
- Discuss a long-term solution to the question of flood protection at the ONS site
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Concerns With SSF Licensing Basis SSF has protection against 5-ft or lower flood heights
- The only inundation study on record had calculated flood heights in excess of 5 feet
" NRC issued 10 CFR 50.54(f) letter
" Licensee response insufficient based on:
- Assertion that dam failures are not part of licensing basis
- Duke's response in dismissing various credible failure modes of Jocassee Dam
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ýa Short-term Operation
- Basis for continued operation
- Low initiating event frequency
- Accident sequence progression timelines
- Additional information
- Plans for further modeling
- Interim guidance
- Bases for the proposed February 2009 modifications 1ýjU.S.NRC
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Long-term Operation
" Technical arguments in 10 CFR 50.54(f) response are, insufficient Argument on probabilities of failure inadequate Inundation study not sufficient for licensing basis
" Technical basis needs to be re-established Submittal from Duke in 1 year NRC review in 1 year
- Analytical approach, if proposed, needs to follow current NRC guidance or have a clear basis for any deviation
" Engineered approach, if proposed, must have an adequate, conservative technical basis.
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