Pump leaks 'hot' water at Hanford
A clogged pump caused an undetermined amount of highly radioactive waste to spill on the ground Thursday night and Friday morning during a transfer operation at the Hanford Nuclear Reservation.
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PATRICK O'NEILL - The Oregonian
A clogged pump caused an undetermined amount of highly radioactive waste to spill on the ground Thursday night and Friday morning during a transfer operation at the Hanford Nuclear Reservation.
Kim Ballinger, spokeswoman for the U.S. Department of Energy at Hanford, said several workers were involved in the transfer but none was contaminated.
As a precaution, about 50 office workers - most of them between one to two miles from the spill site - were evacuated Friday afternoon. Environmental monitoring found the traces of radioactivity Friday morning, and about 11 a.m. the workers were told to stay inside their buildings. They were moved out of the area about 3:30 p.m.
Ballinger said a team of workers sprayed a cementlike fixative over the 8- to 15-foot-diameter spill area to keep radioactive material from being carried by the wind.
Steve Wiegman, a senior technical adviser with the Department of Energy at Hanford, said no one knows how much of the radioactive liquid spilled because it rapidly sank into the ground.
"The area is very permeable, so there's no pool of liquid," he said.
The liquid was being pumped from an old single-shell storage tank to a newer double-shelled tank as part of a tank farm cleanup by contractor CH2M Hill Hanford Group Inc.
Wiegman said the situation did not meet the criteria for an emergency declaration. But the U.S. Department of Energy, which oversees Hanford, has established an event coordination team and will develop a plan to clean up the spill, he said.
©2007 The Oregonian
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