ENS 45668
ENS Event | |
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15:42 Jan 31, 2010 | |
Title | Tema Notified of a Loss of Emergency Sirens |
Event Description | At 1100 EST on 1/31/10, the Sequoyah Nuclear Plant Shift Manager was made aware of notifications made to an outside government agency regarding Loss of Offsite Response Capabilities. Specifically, on 1/30/10 at 1826 EST, the Operations Duty Specialist made a Courtesy notification to the Tennessee Emergency Management Agency (TEMA) of 9 offsite sirens which had failed their polling test. This is well below the normal reporting criteria for the Emergency Plan. Subsequently, on 1/31/10 at 1042 EST, TEMA was notified that 4 of the sirens had been repaired, and only 5 sirens are still not responding to the polling test.
The licensee notified the NRC Resident Inspector.
This amendment is being provided to clarify that a loss of offsite notification capabilities did not occur. At 1100 EST on 1/31/10, the Sequoyah Nuclear Plant Shift Manager was made aware of a courtesy notification made by the TVA Operations Duty Specialist to TEMA regarding loss of a small number of sirens due to inclement weather conditions. The courtesy notification was made on 1/30/10 at 1826 to inform TEMA that 9 offsite sirens had failed their polling test. A loss of 9 sirens does not constitute loss of emergency preparedness capability. This amends the original report which was made within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> of the shift manager's notification. The licensee notified the NRC Resident Inspector. Notified the R2DO (Widman). |
Where | |
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Sequoyah ![]() Tennessee (NRC Region 2) | |
Reporting | |
10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
Time - Person (Reporting Time:+-1.13 h-0.0471 days <br />-0.00673 weeks <br />-0.00155 months <br />) | |
Opened: | Gary Casey 14:34 Jan 31, 2010 |
NRC Officer: | Mark Abramovitz |
Last Updated: | Jan 31, 2010 |
45668 - NRC Website
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Unit 1 | |
---|---|
Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
Unit 2 | |
---|---|
Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
WEEKMONTHYEARENS 565922023-06-27T12:31:00027 June 2023 12:31:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification ENS 549182020-09-28T15:43:00028 September 2020 15:43:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | Offsite Notification - Oil Spill ENS 537542018-11-26T05:00:00026 November 2018 05:00:00 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 for Excessive Smoke in Containment ENS 536802018-10-21T04:00:00021 October 2018 04:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Death of Employee on Site ENS 532702018-03-19T04:30:00019 March 2018 04:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Two Contractors Injured by Arc Flash ENS 524262016-12-13T19:10:00013 December 2016 19:10:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Water Containing Tritium Spilled Into Storm Drain ENS 507572015-01-23T16:50:00023 January 2015 16:50:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notifications Due to Oil Sheen on Intake Bay ENS 505812014-10-30T16:20:00030 October 2014 16:20:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Regarding Boone Dam Stability Issues ENS 497382014-01-17T19:00:00017 January 2014 19:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Fuel Oil Found During Core Drilling ENS 480742012-07-06T14:12:0006 July 2012 14:12:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Loss of 21 Offsite Sirens Due to Inclement Weather ENS 479592012-05-24T19:41:00024 May 2012 19:41:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Oil Sheen on the River ENS 479222012-05-14T14:24:00014 May 2012 14:24:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Oil Sheen Observed on Diffuser Pond ENS 475342011-12-19T21:44:00019 December 2011 21:44:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Tritium Levels Exceeding Threshold for Drinking Water ENS 472562011-09-12T17:05:00012 September 2011 17:05:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to the Tennessee Department of Environment and Conservation (Tdec) ENS 470452011-07-13T04:23:00013 July 2011 04:23:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Overflow of Condenser Circulating Water ENS 467902011-04-27T14:30:00027 April 2011 14:30:00 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 Loss of Emergency Sirens Due to Loss of Electric Power ENS 461952010-08-21T19:09:00021 August 2010 19:09:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Notification of State Agencies Due Leak of a Water Treatment Chemical ENS 456682010-01-31T15:42:00031 January 2010 15:42:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Tema Notified of a Loss of Emergency Sirens ENS 453952009-09-30T19:21:00030 September 2009 19:21:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to Various Government Agencies ENS 453532009-09-16T16:20:00016 September 2009 16:20:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Made After Discovery of an Oil Sheen ENS 451722009-06-29T15:34:00029 June 2009 15:34:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Possible Release of Fuel Oil to the Environment ENS 450642009-05-13T19:05:00013 May 2009 19:05:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Track Hoe Slid Into Intake Forebay ENS 406552004-04-08T12:45:0008 April 2004 12:45:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Off Site Notification 2023-06-27T12:31:00 [Table view] | |