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Category:NRC Preliminary Notification of Event/Occurrence
MONTHYEARPNO-III-10-007, Unusual Event Declared at Quad Cities Due to Freon Leak in the Access Building2010-05-19019 May 2010
PNO-III-10-007, Unusual Event Declared at Quad Cities Due to Freon Leak in the Access Building
PNO-III-08-013, A: Quad Cities Unit 2 Startup After Repairs to the Steam Piping Bellows Failure Inside of the Main Condenser - Update2008-12-22022 December 2008
PNO-III-08-013A: Quad Cities Unit 2 Startup After Repairs to the Steam Piping Bellows Failure Inside of the Main Condenser - Update
ML0835005792008-12-15015 December 2008
PNO-III-08-013, Quad Cities, Unit 2 Shutdown Due to a Steam Piping Bellows Failure Inside of the Main Condenser
PNO-III-08-012, A - Quad Cities Notice of Unusual Event Due to Onsite Explosion - Update2008-10-29029 October 2008
PNO-III-08-012A - Quad Cities Notice of Unusual Event Due to Onsite Explosion - Update
ML0830100982008-10-27027 October 2008
PNO-III-08-012 - Quad Cities Notice of Unusual Event Due to Onsite Explosion
ML0728902622007-10-16016 October 2007
PNO-III-08-011:Exelon Nuclear Generating Co, Tritium Leakage
PNO-III-06-010, Exelon Generation Co - Cracking Identified in Unit 2 Steam Dryer2006-04-0707 April 2006
PNO-III-06-010, Exelon Generation Co - Cracking Identified in Unit 2 Steam Dryer
PNO-III-06-001, A Quad Cities Degraded Actuators for Electromagnetic Relief Valves (Update)2006-01-19019 January 2006
PNO-III-06-001A Quad Cities Degraded Actuators for Electromagnetic Relief Valves (Update)
ML0601707552006-01-17017 January 2006
PNO-III-06-001 Quad Cities: Degraded Actuators for Electromagnetic Relief Valves
PNO-III-03-026, A: Quad Cities, Cracks Discovered in Unit 2 Steam Dryer - Update2003-06-20020 June 2003
PNO-III-03-026A: Quad Cities, Cracks Discovered in Unit 2 Steam Dryer - Update
PNO-III-03-020, A: Quad Cities, Alert Declared Due to Relief Valve Failing to Close (Update)2003-04-17017 April 2003
PNO-III-03-020A: Quad Cities, Alert Declared Due to Relief Valve Failing to Close (Update)
PNO-III-02-032, Shutdown to Determine and Correct the Cause of Fluctuations in Main Steam Line Parameters (Flow, Pressure, Carryover)2002-07-15015 July 2002
PNO-III-02-032 - Shutdown to Determine and Correct the Cause of Fluctuations in Main Steam Line Parameters (Flow, Pressure, Carryover)
PNO-III-02-001, Shut Down Due to Jet Pump Inoperability2002-01-10010 January 2002
PNO-III-02-001 - Shut Down Due to Jet Pump Inoperability
2010-05-19
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October 27, 2008 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE -- PNO-III-08-012 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 III staff on this date.
Facility Quad Cities 22712 206 th Ave. Cordova, IL Licensee Emergency Classification X Notification of Unusual Event Alert Site Area Emergency General Emergency Not Applicable
SUBJECT:
Quad Cities Notice of Unusual Event Due to Onsite Explosion DESCRIPTION:
At 3:03 a.m. Central Daylight Time (CDT) on October 27, 2008, with the Quad Cities Nuclear Plant, Units 1 and 2, operating at full power, the licensee declared a Notice of Unusual Event. The site declared this emergency when an explosion occurred in a building on site that collects wastewater for processing.
The explosion did not significantly impact the operation of the facility and both reactors remained at full power. No injuries occurred as a result of the event.
The cause of the explosion is unknown and is under investigation, but is believed to have occurred as a result of the ignition of flammable gases in the building. There are not believed to be any security issues associated with this event and the licensee has not changed the site security posture.
In response to this event, the NRC entered the Monitoring Mode at 3:58 a.m. CDT and is monitoring this event from the Region III Incident Response Center. The region also has a Resident Inspector on site to monitor the event and provide feedback to the Region III office.
The States of Illinois and Iowa were notified. The information in this preliminary notification has been reviewed with licensee management.
This information is current as of 7:15 a.m. CDT on October 27, 2008.
CONTACT: Mark Ring (630) 829-9703
