Workers at the Hanford Nuclear Reservation near Richland, Wash., in 2010.
February 22, 2013 The state's governor called the news "disturbing" but said there is no health threat at the moment. Hanford has been in existence since the 1940s, when the site was used to prepare plutonium for bombs.
February 16, 2013 Gov. Jay Inslee gets the call that between 150 and 300 gallons of toxic sludge are leaking from a single-shelled tank every year. There are dozens of these tanks holding waste that have outlived their life spans.
NPR thanks our sponsors
Become an NPR sponsor