ENS 55918
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ENS Event | |
|---|---|
18:54 May 25, 2022 | |
| Title | Offsite Notification for Inadvertent Discharge of Halon |
| Event Description | The following information was provided by the licensee via email:
On 5/25/2022 at 1354 [CDT], during the replacement of two detectors, a halon actuation occurred which resulted in an unintentional release of approximately 384 pounds of halon gas into an enclosed room in the Unit 1 Electrical Auxiliary Building. There was no impact to plant operations or plant personnel. The room was verified by station Safety Personnel to be safe for normal access. On 5/27/2022 at 2038 [CDT], Region 12 (Houston) of the Texas Commission of Environmental Quality (TCEQ) was notified of an event which met the requirements of "Emission Event" for the TCEQ of a halon release that exceeded the reportable quantity threshold of 100 pounds in a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> period. The halon discharge was contained within the site protected area. Therefore, this event is not significant with respect to the health and safety of the public. The licensee has notified the NRC Resident Inspector. |
| Where | |
|---|---|
South Texas  Texas (NRC Region 4) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
| Time - Person (Reporting Time:+51.98 h2.166 days <br />0.309 weeks <br />0.0712 months <br />) | |
| Opened: | Dave Wurtz 22:53 May 27, 2022 |
| NRC Officer: | Brian P. Smith |
| Last Updated: | May 27, 2022 |
| 55918 - NRC Website | |
Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 564392023-03-30T06:03:00030 March 2023 06:03:00
[Table view]10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to ON-SITE Fatality ENS 559182022-05-25T18:54:00025 May 2022 18:54:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification for Inadvertent Discharge of Halon ENS 550532020-12-30T21:50:00030 December 2020 21:50:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Inadvertent Emergency Siren Activation ENS 547142020-05-14T21:10:00014 May 2020 21:10:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification for Hydraulic Oil Release ENS 545872020-03-17T20:58:00017 March 2020 20:58:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Notification to Other Government Agency ENS 545612020-03-04T13:18:0004 March 2020 13:18:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release ENS 545292020-02-17T23:17:00017 February 2020 23:17:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Notification to Other Government Agency ENS 541452019-07-03T15:26:0003 July 2019 15:26:00 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 Offsite Notification Due to Radio Transmitter Out of Service ENS 540972019-06-01T21:18:0001 June 2019 21:18:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Gasoline Leakage to Site Drainage System ENS 534052018-05-17T03:02:00017 May 2018 03:02:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification of Fires in the Owner Controlled Area ENS 531412018-01-01T16:15:0001 January 2018 16:15:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Emergency Notification Siren Inadvertent Actuation ENS 531162017-12-12T21:19:00012 December 2017 21:19:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Inadvertent Actuation of Emergency Notification Siren ENS 529112017-08-17T19:42:00017 August 2017 19:42:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Non Work Related Onsite Fatality ENS 527332017-05-05T02:03:0005 May 2017 02:03:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Miscommunication During On-The-Job Training ENS 527162017-04-29T21:23:00029 April 2017 21:23:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Small Grass Fire in Owner Controlled Area ENS 521422016-08-01T20:18:0001 August 2016 20:18:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Unintentional Release of Halon ENS 521062016-07-13T16:00:00013 July 2016 16:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Exercise Press Releases Aired on Radio as an Actual Event ENS 519642016-05-28T01:46:00028 May 2016 01:46:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to an Inadvertent Actuation of One Emergency Siren ENS 517872016-03-14T07:47:00014 March 2016 07:47:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Inadvertent Actuation of Offsite Emergency Notification Siren ENS 515362015-11-13T12:39:00013 November 2015 12:39:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Notification of Unusual Event Due to Unidentified Rcs Leakage Greater than 10 Gpm ENS 513392015-08-23T18:00:00023 August 2015 18:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Grass Fire in Owner Controlled Area ENS 510732015-05-15T22:53:00015 May 2015 22:53:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Siren Actuation ENS 507162015-01-05T23:45:0005 January 2015 23:45:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Death of Employee ENS 473622011-10-20T21:50:00020 October 2011 21:50:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to the Offsite Fatality of an Employee ENS 463872010-11-03T15:21:0003 November 2010 15:21:00 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 an Explosion in the Protected Area Which Affects Normal Operations ENS 452622009-08-13T20:41:00013 August 2009 20:41:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to a Grass Fire in the Owner Controlled Area ENS 436122007-09-01T21:58:0001 September 2007 21:58:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Related to Fatality ENS 427572006-08-08T20:43:0008 August 2006 20:43:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Emergency Notification Siren Activation ENS 423222006-02-08T22:30:0008 February 2006 22:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification ENS 415052005-03-19T14:27:00019 March 2005 14:27:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Injured Contract Employee ENS 413942005-02-10T02:20:00010 February 2005 02:20:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Press Release for Plant Shutdown ENS 406572004-04-08T14:44:0008 April 2004 14:44:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification of a Fatality 2023-03-30T06:03:00 | |
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