“We’re taking it seriously, and we’re doing an investigation so we can better understand what it is,” Department of Energy spokeswoman Lori Gamache told the Los Angeles Times.
The discovery marks the first time material has been found outside the inner wall of one of the site’s 28 double-shell tanks, thought to be relatively secure interim storage for the radioactive material generated when Hanford was one of the nation’s major atomic production facilities. It opened in 1943 and began a gradual shutdown in 1964. Cleanup started in 1989.
Read full story: http://www.latimes.com/news/nation/nationnow/la-na-nn-hanford-tank-leak-20120821,0,2831821.story