ENS 41465: Difference between revisions

v t e ENS Event
17:40 Mar 6, 2005
Title	Small Hydrogen Fluoride Leak
Event Description	The following information was obtained from the Paducah Gaseous Diffusion Plant via facsimile (text in quotes); At 1140, on 03-6-05, the Plant Shift Superintendent was notified that the C-360 Toll and Transfer Facility Zone 1 PGLD (Process Gas Leak Detection) system (Q Safety System) on # 4 Sample Cabinet actuated. The operators evacuated to the proper assembly point. The emergency Squad entered the building and sampled for Hydrogen Fluoride and sample results were positive. The autoclave and sample cabinet UF6 lines were evacuated and purged. Operators gave bioassay sample and the results indicated an uptake of Uranium. Event investigation is ongoing. This event is reportable as a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> event in accordance with the plant procedure UE2-RA-RE1030, Nuclear Regulatory Event Reporting (no 10 CFR section is referenced). An automatic or manual actuation of a Q safety system that results from an event or condition that has the potential for significant impact on the health or safety of personnel. Event having the potential for significant impact are those events where actual plant conditions existed that the system was designed to protect against. The NRC Senior Resident Inspector has been notified of this event. PGDP Problem Report No. ATRC-05-0892; PGDP Event Report No. PAD-2005-07; Worksheet Responsible Division: Operations Atmospheric leak was on line between the autoclave and the sample cabinet. C-360 Toll and Transfer Facility is a stand alone facility. Operations were secured and two individuals had uptakes (Minimal risk): One had an uptake of 7.3 mg/ liter uranium and the other individual had an uptake level of 5.2 mg/ liter uranium. The limit is 5.0 mg/ liter uranium. There was no smoke (very small leak) and a slight smell of Hydrogen Fluoride caused by the leak. * * UPDATE 1230 EST ON 3/24/05 FROM THOMAS WHITE TO S. SANDIN * * * This report is being retracted based on the following information received from the regulatee via fax: This report is being retracted. Subsequent analysis of the actuation determined that the PGLD head actuation occurred from a minor incidental release of UF6 from a valve packing that is not considered a breach of the pressure boundary. Reporting is required if the safety system actuates in response to a condition that the system is designed against and that could result in significant impact on the safety and health of personnel. The PGLD systems safety function, described in the PGDP accident analysis, is to mitigate pigtail/line failures outside of the autoclave that could cause offsite consequences. This incidental UF6 leak did not have the potential for significant impact on personnel or offsite consequences and is not what the safety system is designed to protect against. Thus, the reporting criteria were not met in this case. [The] resident inspector has been notified of this retraction. Notified R2DO (Ayres) and NMSS (Essig).

ENS 41465 +/-
Where
Paducah Gaseous Diffusion Plant Paducah, Kentucky (NRC Region 2)
License number:	GDP-1
Reporting

Other Unspec Reqmnt
Time - Person (Reporting Time:+15.17 h0.632 days <br />0.0903 weeks <br />0.0208 months <br />)
Opened:	Calvin Pittman 08:50 Mar 7, 2005
NRC Officer:	John Mackinnon
Last Updated:	Mar 24, 2005
41465 - NRC Website
v • d • e

v t e Emergency Notification System
Paducah Gaseous Diffusion Plant with Other Unspec Reqmnt
WEEKMONTHYEAR2013-11-17T20:17:00 [Table view]
[ENS list for Paducah Gaseous Diffusion Plant]

@@ Line 3: / Line 3: @@
 | facility = Paducah Gaseous Diffusion Plant
 | Organization =
-| license number = Gdp-1
+| license number = GDP-1
 | region = 2
 | state = Kentucky

ENS 41465: Difference between revisions

Latest revision as of 19:38, 24 November 2018

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ENS 41465: Difference between revisions

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