FILE -- In this Feb. 19, 2013 file photo, Sen. Ron Wyden, D-Ore., right, tours a facility to treat contaminated groundwater with Energy Department manager Matt McCormick on the Hanford

 

              FILE -- In this Feb. 19, 2013 file photo, Sen. Ron Wyden, D-Ore., right, tours a facility to treat contaminated groundwater with Energy Department manager Matt McCormick on the Hanford
FILE -- In this Feb. 19, 2013 file photo, Sen. Ron Wyden, D-Ore., right, tours a facility to treat contaminated groundwater with Energy Department manager Matt McCormick on the Hanford nuclear reservation near Richland, Wash. The facility is a key to cleaning up the highly contaminated site. Six underground radioactive waste tanks at the nation's most contaminated nuclear site are leaking, Gov. Jay Inslee said Friday, Feb. 22, 2013. Inslee made the announcement after meeting with federal officials in Washington, D.C. Last week it was revealed that one of the 177 tanks at south-central Washington's Hanford Nuclear Reservation was leaking liquids. Inslee called the latest news "disturbing." (AP Photo/Shannon Dininny, File)