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| Entered date | Event description | |
|---|---|---|
| ENS 46755 | 14 April 2011 16:52:00 | During a scheduled delivery of Hydrogen to Unit 2's active and reserve hydrogen banks, a hydrogen leak was detected at the hydrogen fill connection isolation valve. A notification was made for an uncontrolled release of hazardous material to San Diego Department of Environmental Health at 12:35 PST and California Emergency Management Agency at 12:40 PST. Upon detection, the leak was isolated. The licensee has notified the NRC Resident Inspector. |
| ENS 46612 | 11 February 2011 22:40:00 | The site Environmental Protection (EP) group notified the control room of a 3000 gallon sewage spill from the Mesa Sewage Treatment Plant. The spill overflowed to the storm water catch basin. The EP group notified the San Diego Regional Water Quality Board and the San Diego Department of Environmental Health. All sewage has been contained within the storm water catch basin. EP is currently on station to remediate the sewage spill. No sewage has been discharged offsite. The licensee has notified the NRC Resident Inspector. |
| ENS 46499 | 21 December 2010 01:40:00 | Notified by the Security Shift Commander at 2020 (PST) that access to the primary EOF is not possible due to flooding. San Onofre will activate the alternate EOF if an event is declared. There are no other affected systems or loss to emergency response capabilities due to this flooding. Access to the site has not been impacted due to the flooding. The NRC Resident Inspector has been notified. |