At approximately 8:00 am on April 12, 2012, a criticality safety engineer was notified that waste in the Dry Conversion Process (
DCP) area was improperly placed into a designated storage location. Upon investigation, it was determined that waste in the designated location contained materials with a total of less than 5 kg of
uranium. As a result, no unsafe condition existed.
An operator placed a bag of waste adjacent to a partially filled receptacle instead of placing the bag into the receptacle. This resulted in a portion of one of the documented administrative controls for criticality safety, requiring 24 inches separation between waste storage locations, to be degraded. This event is being conservatively reported per internal procedural requirements.
As an immediate corrective action, the material was removed and transferred to the waste processing area. In addition, a shop wide communication to Fuel Manufacturing Operations is underway to inform operators of the issue.
Additional corrective actions and extent of condition are being evaluated.
At no time was an unsafe condition present.
Notifications were sent to state and local agencies and NRC Region II.