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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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July 29, 2008 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE -- PNO-IV-08-006 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 Licensee Emergency Classification Southern California Edison Company Notification of Unusual Event San Onofre Nuclear Generating Station Alert San Clemente, CA 92674 Site Area Emergency General Emergency Docket No. 50-361; 50-362 X Not Applicable License No. NPF-10; NPF-15
SUBJECT:
SEISMIC EVENT NEAR SAN ONOFRE NUCLEAR GENERATING STATION AND UNIVERSITY OF CALIFORNIA (IRVINE) RESEARCH REACTOR DESCRIPTION: On July 29, 2008, at 11:42 a.m. (PDT) an earthquake registering approximately 5.4 on the Richter Scale was recorded with the epicenter located near Chino Hills, California. Chino Hills, California, is approximately 40 miles from San Onofre Nuclear Generating Station. The earthquake was felt onsite and various tank water level instruments indicated slight movement; however, no seismic instrumentation was activated. The onsite seismic motion was less than the operating and design basis ground motion. Both units remained at essentially full power. The Resident Inspectors were onsite and immediately went to the control room to monitor licensee response and their assessment of the earthquake. No emergency actions levels were reached.
Both licensee personnel and the Resident Inspectors performed plant walkdowns and visually verified that no plant equipment was damaged.
The University of California (Irvine) research reactor is located approximately 23 miles from Chino Hills, California. University engineers confirmed that no plant equipment was damaged. The reactor was shutdown at the time of the earthquake.
Region IV received notification of this occurrence by 1:49 p.m. (CDT) from the resident staff. The state of California has been notified.
The information presented herein has been discussed with San Onofre Nuclear Generating Station licensee management and is current as 4:15 p.m. (CDT).
This preliminary notification is issued for information only.
ADAMS ACCESSION NUMBER: ML082110590 CONTACTS: Mike Hay Victor Dricks 817-528-2634 817-917-1227 michael.hay@nrc.gov victor.dricks@nrc.gov