ENS 47099

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v t e ENS Event
09:15 Jul 27, 2011
Title	Alert Declared Due to Onsite Release of Fluorine/Chlorinated Fluorine Gas Mixture
Event Description	At 0415 CDT while changing out a cylinder of Fluorine/CL3 gas mixture in the C350 building, apparently a gasket failure occurred and an uncontrolled release of the gas mixture began. The licensee estimates that at the time the release began, there was approximately 160 lbs. of material in the cylinder. The release continues at this time. The C350 building was evacuated. There were no personnel injuries as a result of this event. No offsite assistance is being requested by the licensee. The local emergency squad is responding. The licensee notified the NRC Resident Inspector. * * UPDATE FROM MIKE BOREN AND GREG BARNA TO DONALD NORWOOD AT 0631 EDT ON 7/27/2011 * * * The licensee believes, but has not verified at this time, that the gas leak has been stopped. A 'shelter in place' order has been issued for the following buildings: C337, C337a, C360, C335, C635 and C631. Samples exterior to building C350 are negative. Samples interior to building C350 still show residue and fog in the building. The licensee notified the NRC Resident Inspector. * * UPDATE FROM MIKE BOREN TO DONALD NORWOOD AT 0714 EDT ON 7/27/2011 * * * The licensee has verified that the leak has been stopped. * * UPDATE FROM GREG BARNA TO DONALD NORWOOD AT 0726 EDT ON 7/27/2011 * * * At 0615 CDT, an employee that was involved with the cylinder change-out and response to the event was transported to the onsite medical facility. He was complaining of a burning sensation to his right arm. At 0625 CDT, samples obtained both inside and outside of building C350 were negative. The licensee notified the NRC Resident Inspector. * * UPDATE FROM GREG BARNA TO DONALD NORWOOD AT 0736 EDT ON 7/27/2011 * * * At 0631 CDT, the licensee has terminated the Alert. The licensee is controlling access to building C350 for investigation. The licensee has setup a recovery team. As a precautionary measure, a second individual that was involved in the cylinder change-out was also transported to the onsite medical facility. The licensee notified the NRC Resident Inspector. Notified R2DO (Blamey), NMSS EO (Habighorst), IRD MOC (Marshall), DHS (Arnold), FEMA (Hollis), DOE (Connally), EPA (Brett), USDA, and HHS (Jones). * * UPDATE FROM DEREK WARFORD TO HOWIE CROUCH AT 0916 EDT ON 7/27/2011 * * * On 7/27/11 at 0710 [CDT], the Paducah Gaseous Diffusion Plant decided to issue a press release describing the Alert issued by the plant earlier in the morning. The Alert issued on a chlorine trifluoride (CIF3) release in the C-350 facility was declared on 07/27/11 at 0415 [CDT] and terminated on 07/27/11 at 0631 [CDT]. . This event is reportable under Criteria P in Appendix D of USEC procedure UE2-RA-RE1030 as any event or situation, related to the health and safety of the public or on-site personnel, or protection of the environment, for which a news release is planned or notification to other government agencies has been or will be made. The NRC Senior Resident Inspector has been notified of this event. Notified R2DO (Blamey), NMSS EO (Habighorst) and PAO (Harrington).

ENS 47099 +/-
Where
Paducah Gaseous Diffusion Plant Paducah, Kentucky (NRC Region 2)
License number:	GDP-1
Reporting
Emergency class:	Alert
10 CFR 76.120(a)(4) Other Unspec Reqmnt
Time - Person (Reporting Time:+-3.53 h-0.147 days <br />-0.021 weeks <br />-0.00484 months <br />)
Opened:	Ken Wallace 05:43 Jul 27, 2011
NRC Officer:	Donald Norwood
Last Updated:	Jul 27, 2011
47099 - NRC Website
v • d • e

v t e Emergency Notification System
Paducah Gaseous Diffusion Plant with Other Unspec Reqmnt, 10 CFR 76.120(a)(4)
WEEKMONTHYEAR2013-11-17T20:17:00 [Table view]
[ENS list for Paducah Gaseous Diffusion Plant]

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