ENS 44815
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ENS Event | |
|---|---|
13:50 Jan 29, 2009 | |
| Title | Unusual Event - Toxic Gas Discharge in Waste Gas Treatment Building |
| Event Description | An unisolable pipe break on an in-service waste gas treatment building chiller has resulted in a toxic release of asphyxiant freon gas. All personnel were evacuated and no injuries occurred. An entry by operations personnel with self contained breathing apparatus verified that all site personnel have evacuated the building. There was no impact to offgas processing equipment in the area and actual gas concentration was not known at the time of declaration so the assumption of toxic gas concentration is conservative.
The Licensee notified the NRC Resident Inspector, Georgia Emergency Management Agency, Appling County, Jeff Davis County, Tattnall County, and Toombs County.
Air samples in the area indicated no detectable freon. Licensee terminated the event at 0946. Notified R2DO(McCoy), NRR EO(Ross-Lee), DHS(Inzer), and FEMA(LaForte) |
| Where | |
|---|---|
Hatch  Georgia (NRC Region 2) | |
| Reporting | |
| Emergency class: | Unusual Event |
| 10 CFR 50.72(a) (1) (i), Emergency Class Declaration | |
| Time - Person (Reporting Time:+-4.17 h-0.174 days <br />-0.0248 weeks <br />-0.00571 months <br />) | |
| Opened: | Tony Spring 09:40 Jan 29, 2009 |
| NRC Officer: | Joe O'Hara |
| Last Updated: | Jan 29, 2009 |
| 44815 - 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 (97 %) |
| After | Power Operation (97 %) |
WEEKMONTHYEARENS 525262017-02-01T21:05:0001 February 2017 21:05:00
[Table view]10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event - Potential Security Event ENS 462582010-09-18T20:27:00018 September 2010 20:27:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to High-High Reactor Building Sump Level Alarm ENS 462272010-09-03T02:50:0003 September 2010 02:50:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Notification of Unusual Event Declared Due to High Water Level in the Rcic Instrument Sump ENS 448152009-01-29T13:50:00029 January 2009 13:50:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event - Toxic Gas Discharge in Waste Gas Treatment Building ENS 435412007-08-01T06:05:0001 August 2007 06:05:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Fire in Protected Area Greater than 10 Minutes ENS 425372006-05-01T08:39:0001 May 2006 08:39:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to a Fire in an Isophase Bus Duct Lasting 11 Minutes ENS 420962005-10-29T17:25:00029 October 2005 17:25:00 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 - Main Transformer Fire ENS 413812005-02-08T01:55:0008 February 2005 01:55:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Plant Had a Freon Leak in the Drywell Chiller Room ENS 404282004-01-06T17:58:0006 January 2004 17:58:00 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 Fire on Refuel Floor 2017-02-01T21:05:00 | |
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