ENS Event | |
|---|---|
10:20 Aug 3, 2013 | |
| Title | Alert Declared Due to an Inadvertent Co2 Fire Protection System Discharge |
| Event Description | [On August 3, 2013, at 0520 CDT], Farley Unit 1 declared an ALERT emergency based on [EAL] HA3, 'Release of Toxic, Asphyxiant, or Flammable Gas'. This was due to a tagout of the CO2 Fire Protection System, which resulted in an unexpected discharge of CO2 on the Unit 1 Radiation Side of the Auxiliary Building. The 100 foot elevation level on Unit 1 had an oxygen concentration below the required amount. CO2 has been isolated at the source tank in order to terminated the leak. No personnel have been affected. There is no radiation release in progress. ERDS has been activated.
The licensee is assembling a team to enter the affected area and verify oxygen levels are within allowable limits in order to terminate the ALERT emergency. The licensee has notified the NRC Resident Inspector and the State and local organizations. Notified DHS SWO, DOE, FEMA, HHS, DHS NICC, USDA, EPA, FDA and NuclearSSA via email.
Farley Unit 1 terminated from the ALERT at 1110 CDT on 8/3/13. Oxygen levels are acceptable in all areas of the plant. The CO2 tank has been isolated and is stable at 68%. Plant conditions are stable and improving and all necessary compensatory measures are in place. The licensee has notified the NRC Resident Inspector and applicable state and local authorities. Notified R2DO (King), NRR EO (Hiland), IRD (Kozal), and PAO (Couret), DHS SWO, DOE, FEMA, HHS, DHS NICC, USDA, EPA, FDA and NuclearSSA via email. |
| Where | |
|---|---|
Farley  Alabama (NRC Region 2) | |
| Reporting | |
| Emergency class: | Alert |
| 10 CFR 50.72(a) (1) (i), Emergency Class Declaration | |
| Time - Person (Reporting Time:+-3.5 h-0.146 days <br />-0.0208 weeks <br />-0.00479 months <br />) | |
| Opened: | John Andrews 06:50 Aug 3, 2013 |
| NRC Officer: | Vince Klco |
| Last Updated: | Aug 3, 2013 |
| 49232 - NRC Website
Loading map... | |
Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 523402016-11-01T22:43:0001 November 2016 22:43:00
[Table view]10 CFR 50.72(a)(1)(i), Emergency Class Declaration Alert Declared at Farley Unit 1 Due to Ammonia Exceeding Idlh Levels in the Auxiliary Building ENS 492322013-08-03T10:20:0003 August 2013 10:20:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Alert Declared Due to an Inadvertent Co2 Fire Protection System Discharge ENS 455652009-12-13T00:45:00013 December 2009 00:45:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to a Fire in the Ccw Heat Exchanger ENS 440602008-03-13T21:44:00013 March 2008 21:44:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Alert Declared Due to Toxic Gas Discharge Into the 1B Emergency Diesel Generator Building ENS 421272005-11-08T19:07:0008 November 2005 19:07:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Alert Declared Due to Loss of Main Control Board Annunciator Panels 2016-11-01T22:43:00 | |