ML25233A260
| ML25233A260 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 09/11/2025 |
| From: | Geoffrey Miller Plant Licensing Branch II |
| To: | Snider S Duke Energy Carolinas |
| References | |
| Download: ML25233A260 (1) | |
Text
September 11, 2025 Mr. Steven M. Snider Site Vice President, Oconee Nuclear Station Duke Energy Carolinas, LLC 7800 Rochester Highway Seneca, SC 29672-0752
SUBJECT:
OCONEE NUCLEAR STATION, UNIT NOS. 1, 2, AND 3 - STAFF ASSESSMENT OF UPDATED SEISMIC HAZARDS FOLLOWING THE NRC PROCESS FOR THE ONGOING ASSESSMENT OF NATURAL HAZARDS INFORMATION
Dear Mr. Snider:
The purpose of this letter is to document the U.S. Nuclear Regulatory Commission (NRC) staffs assessment of seismic hazards at Oconee Nuclear Station (Oconee), Units 1, 2, and 3, following its Process for the Ongoing Assessment of Natural Hazards Information (POANHI) which was initiated in response to a new seismic ground motion model for the central and eastern North America hazards.1 In response to this new information, the NRC staff developed an initial set of thirteen sites for which a more detailed evaluation of seismic hazards and plant response would be performed.
This initial list included Oconee. The NRC staff evaluated the selected sites in order of those most likely to warrant further evaluation or regulatory action. To date, ten site evaluations have been performed, and in all ten cases, the NRC staff determined that no additional regulatory action was warranted. Considering the reduced likelihood of regulatory actions resulting from further reviews, the NRC staff has concluded that no further regulatory evaluation or action is warranted for Oconee under the POANHI process.
Although the NRC staff is taking no further action at this time, new hazard information may be considered in the context of potential future evaluations of the site by the NRC staff (e.g., future license amendment requests) consistent with agency policy procedures (e.g., NRC Management Directive 8.4, Management of Backfitting, Forward Fitting, Issue Finality, and Information Requests).
1 Additional information regarding this review is available at: https://www.nrc.gov/reactors/operating/ops-experience/poanhi/seismic-activities.html
S. Snider If you have any questions, please contact me at (301) 415-2481 or via email at ed.miller@nrc.gov.
Sincerely,
/RA/
G. Edward Miller, Project Manager Plant Licensing Branch II-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-269, 50-270, and 50-287
- via eConcurrence NRR-106 OFFICE NRR/DORL/LPL2-1/PM* NRR/DORL/LPL2-1/LA*
NRR/DEX/EXHB/BC*
NRR/DEX/D (A)*
NAME GEMiller KZeleznock BHayes (KQuinlan for)
TMartinez-Navedo DATE 8/22/2025 8/27/2025 8/27/2025 8/27/2025 OFFICE NRR/DRA/APLC/BC*
NRR/DORL/LPL2-1/BC*
NRR/DORL/LPLII-2/PM*
NAME SAlferink Michael T. Markley GEMiller DATE 9/4/2025 9/10/2025 9/11/2025