|AGREEMENT STATE REPORT - CONTAMINATION EVENT
The following information was obtained from the State of Tennessee via email:
"On 12/10/12 at 4:30 pm EST, [the] RSO [at] Energy Solutions-Bear Creek called [the State of Tennessee] to report that last Friday, 12/7/12, a drum of DU shavings had been placed in Area 9 of the old ATG building and covered w/mineral oil. When [workers] came to work on 12/10/12, they noticed that the poly drum was completely gone, the shavings were on the floor, oil was on the floor and some of the shavings looked like ash. The poly drum had burned up and the drum/shavings and oil/ash/shavings were now on the concrete floor. There was no stack release. The stack samples were pulled and indicated less than MDA: < E-14 for U-238 and
Tennessee Report No.: TN-12-305
* * * UPDATE FROM LAURA TURNER TO DONALD NORWOOD AT 1153 EDT ON 5/7/2013 * * *
The following report was received via e-mail:
This is a request for event notification (EN #48577) to be retracted.
"The State of Tennessee Division of Radiological Health (DRH) investigation has determined, based on the information Energy Solutions (ES) supplied and the amount of DU [Depleted Uranium] lost, incident TN-12-305 did not meet the reporting requirements for the greater than five times ALI criteria. Therefore, Event Notification Report #48577 is being retracted.
"It was concluded that 126 grams of DU, or less than 37 MBq (1 mCi) of activity, is unaccounted for as a result of the oxidation incident. Energy Solutions stated that the work area sample results were 0.46 uBq/ml (1.25E-11 uCi/ml) alpha and 1.85 uBq/ml (5E-11 uCi/ml) beta with field instrument checks. Results were also less than MDA alpha and 0.2 (5.46E-12) beta with laboratory equipment checks (gamma spec). Correspondingly, the field check revealed 1.79 DAC based on 0.26 uBq/ml (7E-12 uCi/ml) DAC for Pu-239. Energy Solutions concluded that an inappropriate storage vessel was used. Corrective actions included operator training, procedural revisions, and external review by proper ES personnel."
Notified R1DO (Dwyer) and FSME Events Resource.