|February 23, 2013
Six underground storage tanks at the Hanford Nuclear Reservation along the Columbia River in Washington state were recently found to be leaking radioactive waste, but there is no immediate risk to human health, state and federal officials said on Friday.
The seeping waste adds to decades of soil contamination caused by leaking storage tanks at Hanford in the past and threatens to further taint groundwater below the site but poses no near-term danger of polluting the Columbia River, officials said.
The newly discovered leaks were revealed by Governor Jay Inslee a week after the U.S. Energy Department disclosed that radioactive waste was found to be escaping from one tank at Hanford.
Inslee said he was informed on Friday by outgoing U.S. Energy Secretary Steven Chu that a total of six of the aging, single-walled tanks were leaking radioactive waste.