ENS 45989
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ENS Event | |
|---|---|
09:30 Jun 8, 2010 | |
| Title | Offsite Notification of Minor Hydazine Spill |
| Event Description | At approximately 0430 CDT on June 8, 2010, during restoration following an addition of 10 gallons of hydrazine and a flush of 2 gallons of demineralized water to the Condensate Storage Tank (CST), a water-hydrazine mixture began to leak from check valve KHV0179. KHV0179 is a nitrogen supply check valve that can also be used for hydrazine addition.
Chemistry technicians estimated that a water-hydrazine mixture on the order of 2 gallons leaked through KHV0179 before the line could be isolated. Samples taken from the atmosphere above the spill contained 0.25 ppm hydrazine. The fluid on the ground was measured to contain 15% hydrazine. The Department of Natural Resources (DNR) was notified of this event at approximately 1000 CDT on June 8, 2010. The Nuclear Regulatory Commission (NRC) Resident Inspectors will be notified. |
| Where | |
|---|---|
Callaway  Missouri (NRC Region 4) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
| Time - Person (Reporting Time:+10.45 h0.435 days <br />0.0622 weeks <br />0.0143 months <br />) | |
| Opened: | Mark Covey 19:57 Jun 8, 2010 |
| NRC Officer: | Bill Huffman |
| Last Updated: | Jun 8, 2010 |
| 45989 - NRC Website | |
Unit 1 | |
|---|---|
| Reactor critical | Not Critical |
| Scram | No |
| Before | Cold Shutdown (0 %) |
| After | Cold Shutdown (0 %) |
WEEKMONTHYEARENS 564012023-03-09T17:53:0009 March 2023 17:53:00
[Table view]10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Injured Worker ENS 552592021-05-14T18:00:00014 May 2021 18:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Individual Fall from Scaffold Ladder - Other Government Agency Notification ENS 537172018-11-05T05:00:0005 November 2018 05:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Chemical Spill Offsite ENS 512532015-07-23T06:15:00023 July 2015 06:15:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Initiation of Plant Shutdown Due to Rcs Leakage ENS 504652014-09-17T14:13:00017 September 2014 14:13:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Oil Tanker Truck Spill ENS 503332014-07-31T19:30:00031 July 2014 19:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Tritium and Cobalt Detected in Ground Water Monitoring Well ENS 492192013-07-27T04:49:00027 July 2013 04:49:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Unusual Event Declared Due to a Fire in the Turbine Building Lasting Greater than 15 Minutes ENS 488792013-04-02T22:07:0002 April 2013 22:07:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Electrical Fault in Switchyard Resulting in Personnel Injuries ENS 482682012-09-02T15:31:0002 September 2012 15:31:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Non-Radiological Leakage from the Neutralization Tank ENS 482362012-08-27T20:26:00027 August 2012 20:26:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Hazardous Material Spill ENS 468142011-05-03T15:36:0003 May 2011 15:36:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Notification to Offsite Agency Regarding Potable Water Residual Chlorine Level ENS 459892010-06-08T09:30:0008 June 2010 09:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification of Minor Hydazine Spill ENS 458372010-04-13T17:00:00013 April 2010 17:00:00 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 Due to an Identified Leakage Exceeding 25 Gallons Per Minute ENS 432812007-04-05T15:23:0005 April 2007 15:23:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Alert Declared Due to Report of a Fire in the Control Building ENS 432272007-03-09T16:43:0009 March 2007 16:43:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Manual Reactor Trip at Reduced Power Due to Inadequate Feedwater Control ENS 429522006-10-31T06:00:00031 October 2006 06:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Contractor Employee Fatality ENS 426762006-06-30T18:00:00030 June 2006 18:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Low Levels of Tritium Found Along Plant Discharge Line ENS 425822006-05-17T20:03:00017 May 2006 20:03:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release News Release and Notification to Other Government Agencies - Planned Plant Shutdown ENS 425772006-05-16T11:30:00016 May 2006 11:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Employee Death ENS 415372005-03-28T18:48:00028 March 2005 18:48:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Notification of a Forced Outage Expected to Last Longer than Three Days. ENS 413472005-01-19T18:51:00019 January 2005 18:51:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Callaway Automatic Reactor Trip on Low Steam Generator Level ENS 405072004-02-05T23:01:0005 February 2004 23:01:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to the Missouri Public Service Commission 2023-03-09T17:53:00 | |
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