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| Start date | Reporting criterion | Title | Event description | System | LER | |
|---|---|---|---|---|---|---|
| ENS 42767 | 7 August 2006 07:00:00 | Information Only | Information Notification for Detection of Tritium in Water Sample | On Monday, August 14, 2006, Southern California Edison (SCE) made a voluntary communication to California State and Local government agencies regarding water samples taken during on-going Unit 1 decommissioning activities. During the week of August 7, 2006, water samples were found to have tritium levels ranging from 50,000 -- 330,000 picoCuries/liter. No permits were violated. It was thought that the contamination may be attributed to historical events during Unit 1 operation (Unit 1 ceased commercial operation in 1992). SCE is investigating the source of the tritium and, as part of decommissioning, will remediate the contamination. The groundwater beneath SONGS is not a source of drinking water. The NRC Resident Inspectors have been notified of this occurrence and will be provided with a copy of this report. | ||
| ENS 40504 | 3 February 2004 19:30:00 | Information Only | Licensee Reported a Fish Kill Involving Approximately 13,590 Pounds of Sardines | Section 4.1 of Appendix B of the Operating License for Units 2 and 3 requires Southern California Edison (SCE) to report to the NRC within 24 hours any unusual or important environmental events, which includes unusual fish kills. Between February 2 and February 3, 2004, SCE removed an unusually large number of sardines from the Units 2 and 3 intake structure. At approximately 1100 on February 3, 2004, SCE determined the quantity to be approximately 13,590 pounds (approximately 6940 pounds from Unit 2 and 6650 pounds from Unit 3). While the NRC has not specified a reporting limit for an unusual fish kill, SCE has internally defined this quantity as 4500 pounds. SCE believes the unusual influx of sardines may be related to current winter storm conditions. The NRC Resident Inspectors have been notified The licensee will also give a courtesy call to the San Diego Regional Water Quality Control Board |