Hanford alert traced to old contamination
Hanford officials say unusual radiation readings that led them to declare an emergency operations alert last month came from old contamination.
The Associated Press
PASCO -- Hanford officials say unusual radiation readings that led them to declare an emergency operations alert last month came from old contamination.
Hanford officials told the Tri-City Herald ( http://is.gd/AgkYdO) they found no evidence of a new leak from a waste removal system or its transfer hoses.
They told employees on Tuesday that an investigation found insulating blankets that had been used to shield radiation on a small area had shifted. That caused radiation readings to go up during routine monitoring.
Because the abnormal reading could have been caused by a leak, workers at the C Tank Farm were evacuated overnight on Aug. 21 and workers in central Hanford and near the K Reactors were ordered to take cover indoors.
Before work restarts this week, the hot spot will be recovered.
Information from: Tri-City Herald, http://www.tri-cityherald.com