ENS 46611
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ENS Event | |
|---|---|
21:07 Feb 11, 2011 | |
| Title | Unusual Event Declared Based on Fire Alarm in Drywell |
| Event Description | At 1438 CST on 02/11/2011 a fire detector alarm was received for Recirculation Pump B in the Reactor Building Drywall. At 1453 CST the main control room was unable to determine the alarm was invalid. At this time the condition was met for EAL HU4 for a Fire within the Protected Area boundary that is not extinguished within 15 minutes of detection. At 1507 CST a Notification of an Unusual Event was declared. The alarm was verified to be invalid following visual inspection at 1513 CST. All Drywall parameters and operation of Recirculation Pump B verified to be normal. "
The licensee has notified State and local authorities as well as the NRC Resident Inspector. No media or press release is planned.
|
| Where | |
|---|---|
River Bend  Louisiana (NRC Region 4) | |
| Reporting | |
| Emergency class: | Unusual Event |
| 10 CFR 50.72(a) (1) (i), Emergency Class Declaration 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
| Time - Person (Reporting Time:+-4.5 h-0.188 days <br />-0.0268 weeks <br />-0.00616 months <br />) | |
| Opened: | Dave Polan 16:37 Feb 11, 2011 |
| NRC Officer: | Bill Huffman |
| Last Updated: | Feb 11, 2011 |
| 46611 - NRC Website
Loading map... | |
River Bend with 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration | |
WEEKMONTHYEARENS 575162025-01-27T18:05:00027 January 2025 18:05:00
[Table view]10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Wastewater Discharge ENS 575142025-01-25T23:07:00025 January 2025 23:07:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Waste Water Discharge ENS 549912020-11-11T00:27:00011 November 2020 00:27:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent/Malfunctioning Siren Activation ENS 522932016-10-10T15:32:00010 October 2016 15:32:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to a Spill of a Reportable Quantity of Hydraulic Oil Onsite ENS 515992015-08-03T21:30:0003 August 2015 21:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification for Condensate Spill in the Turbine Building ENS 501092014-05-12T20:00:00012 May 2014 20:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Tritium Confirmed in Water Samples On-Site Underground ENS 497012014-01-07T20:39:0007 January 2014 20:39:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification for Spill in the River Bend Owner Control Area ENS 488282013-03-18T21:05:00018 March 2013 21:05:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Radioactive Release Onsite ENS 487852013-02-26T20:30:00026 February 2013 20:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release State and Local Agencies Notified of Inadvertent Tritium Release Due to Overflowing Sump ENS 487322013-02-07T21:53:0007 February 2013 21:53:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Emergency Siren Actuation ENS 485552012-12-04T15:42:0004 December 2012 15:42:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Licensee No Longer Has Control of Emergency Sirens ENS 475412011-12-21T15:30:00021 December 2011 15:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification for Detectable Levels of Tritium in Groundwater Well ENS 466112011-02-11T21:07:00011 February 2011 21:07:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Based on Fire Alarm in Drywell ENS 465462011-01-15T15:33:00015 January 2011 15:33:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Notification of State of Louisiana Agencies Due to Offsite Transport of Potentially Contaminated Injured Individual ENS 461582010-08-07T05:15:0007 August 2010 05:15:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Inadvertent Sounding of One Offsite Emergency Siren ENS 453802009-09-24T06:30:00024 September 2009 06:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification of Inadvertent Siren Sounding ENS 439272008-01-23T23:05:00023 January 2008 23:05:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event - Toxic Gases in the Turbine Building ENS 439162008-01-18T16:15:00018 January 2008 16:15:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification of Tritium Identified in Water Samples from Piping Leak ENS 437592007-10-30T18:42:00030 October 2007 18:42:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Activation of Offsite Emergency Sirens ENS 424152006-03-13T23:40:00013 March 2006 23:40:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Failure of One Emergency Siren 2025-01-27T18:05:00 | |
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