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Category:NRC Preliminary Notification of Event/Occurrence
MONTHYEARPNO-IV-13-003, SONGS Decommissioning2013-06-0707 June 2013
PNO-IV-13-003 SONGS Decommissioning
PNO-IV-12-003, A - Update Augmented Inspection Team Onsite at San Onofre, Unit 32012-03-16016 March 2012
PNO-IV-12-003A - Update Augmented Inspection Team Onsite at San Onofre, Unit 3
ML12032A2432012-02-0101 February 2012
PNO-IV-12-003: San Onofre Unit 3 Steam Generator Tube Leak and Rapid Shutdown
ML1130606732011-11-0202 November 2011
PNO-IV SCE SONGS 3 Ammonia Leak Causes Evacuation of Unit 3 Turbine Building and Alert Declaration
PNO-IV-09-003, Southern California Edison, San Onofre Nuclear Generating Station, Subject: Contract Fire Watch Employee Terminated for Use of a Prohibited Substance in the Site Protected Area2009-03-12012 March 2009
PNO-IV-09-003, Southern California Edison, San Onofre Nuclear Generating Station, Subject: Contract Fire Watch Employee Terminated for Use of a Prohibited Substance in the Site Protected Area
PNO-IV-08-006, Southern California Edison Company (San Onofre Nuclear Generating Station), Seismic Event Near San Onfore Nuclear Generating Station and University of California (Irvine) Research Reactor, 07/29/20082008-07-29029 July 2008
PNO-IV-08-006: Southern California Edison Company (San Onofre Nuclear Generating Station), Seismic Event Near San Onfore Nuclear Generating Station and University of California (Irvine) Research Reactor, 07/29/2008
PNO-IV-07-008, D - Southern California Edison Co., Final Update - Southern California Brush Fires and San Onofre Nuclear Generating Station, 10/26/20072007-10-26026 October 2007
PNO-IV-07-008D - Southern California Edison Co., Final Update - Southern California Brush Fires and San Onofre Nuclear Generating Station, 10/26/2007
ML0729809102007-10-25025 October 2007
PNO-IV-07-008C: Update - Southern California Brush Fires and San Onofre Nuclear Generation Station (SONGS) Status, 10/25/2007
ML0729801882007-10-25025 October 2007
PNO-IV-07-008B: Update - Southern California Brush Fires and San Onofre Nuclear Generating Station Status
ML0729704662007-10-24024 October 2007
PNO-IV-07-008A, Update - Southern California Brush Fires and San Onofre Nuclear Generating Station Status
ML0729606372007-10-23023 October 2007
PNO-IV-07-008 Southern California Edison Company (San Onofre Units 2 & 3, Southern California Brush Fires and San Onofre Nuclear Generating Station Status, 10/23/2007
PNO-IV-07-006, A, San Onofre Nuclear Generating Station, Update to Unit 2 Reactor Shut Down (Event Notification EN 43435)2007-06-27027 June 2007
PNO-IV-07-006A, San Onofre Nuclear Generating Station, Update to Unit 2 Reactor Shut Down (Event Notification EN 43435)
ML0717304982007-06-22022 June 2007
PNO-IV-07-006 - Southern California Edison (San Onofre Nuclear Generating Station, Unit 2, Unit 2 Reactor Shutdown (Event Notification EN 43435), 06/22/2007
PNO-IV-06-010, Southern California Edison Subject: Tritium Detected in Water Samples Taken on the Site2006-08-15015 August 2006
PNO-IV-06-010: Southern California Edison Subject: Tritium Detected in Water Samples Taken on the Site
PNO-IV-06-004, San Onofre, Unit 3, Shutdown of San Onofre Unit 3 to Investigate Safety Injection Tank Gaskets2006-03-29029 March 2006
PNO-IV-06-004 - San Onofre, Unit 3, Shutdown of San Onofre Unit 3 to Investigate Safety Injection Tank Gaskets
PNO-IV-05-004, SONGS - Shutdown to Repair Component Cooling Water Valve2005-02-18018 February 2005
PNO-IV-05-004: SONGS - Shutdown to Repair Component Cooling Water Valve
PNO-IV-04-003, Southern California Edison, Unit 3 Shutdown to Repair a Letdown System Piping Leak2004-01-27027 January 2004
PNO-IV-04-003: Southern California Edison, Unit 3 Shutdown to Repair a Letdown System Piping Leak
PNO-IV-02-047, Earthquake of Magnitude of 4.6 Approximately 40.0 Miles Northeast from San Onofre Nuclear Plant2002-09-0303 September 2002
PNO-IV-02-047: Earthquake of Magnitude of 4.6 Approximately 40.0 Miles Northeast from San Onofre Nuclear Plant
PNO-IV-02-002, Arrest Associated with Alleged Threats Against Employees at San Onofre Nuclear Generating Station2002-01-10010 January 2002
PNO-IV-02-002: Arrest Associated with Alleged Threats Against Employees at San Onofre Nuclear Generating Station
2013-06-07
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October 23, 2007 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE -- PNO-IV-07-008 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. The information is as initially received without verification or evaluation, and is basically all that is known by the Region IV, Arlington, Texas, staff on this date. Facility Southern California Edison Co. San Onofre Unit 2 & 3 San Clemente, CA 92674 Docket: 50-361, 50-362 License: NPF-10, NPF-15 Licensee Emergency Classification Notification of Unusual Event Alert Site Area Emergency General Emergency X Not Applicable
SUBJECT:
SOUTHERN CALIFORNIA BRUSH FIRES AND SAN ONOFRE NUCLEAR GENERATING STATION STATUS
DESCRIPTION: The NRC and Southern California Edison, licensee for San Onofre Nuclear Generating Station, are closely monitoring the impacts of the Southern California brush fires. Currently, the San Onofre site and the local electrical grid have not been affected.
On October 21, 2007, the licensee shut down Unit 2 to perform main steam and feedwater isolation valve testing as a result of a problem found in Unit 3. The resident inspectors responded to the site to monitor the shut down of the unit. Unit 3 is currently shut down for a planned maintenance outage. Testing activities in both units identified no additional valve failures. The licensee is currently in the process of preparing Unit 2 for restart. NRC resident inspectors will continue to follow the licensee's maintenance and equipment restoration activities.
NRC staff will coordinate with the licensee to evaluate the impacts of the Southern California fires on grid stability and emergency response capabilities prior to the restart of Unit 2. Unit 3 continues in a scheduled midcycle outage.
The state of California has been informed. This information has been discussed with licensee management and is current as of 9:45 AM PDT on October 23, 2007.
This preliminary notification is issued for information only.
ADAMS ACCESSION NUMBER: ML072960637
CONTACTS: Geoffrey Miller Victor Dricks 972-989-2529 817-860-8128 gbm@nrc.gov vld@nrc.gov
