http://www.bbc.co.uk/news/world-us-canada-21555902 Nearly 200 ageing containers hold millions of litres of radioactive waste left from decades of plutonium production for nuclear weapons. “There is no immediate or near-term health risk associated with these newly discovered leaks, which are more than five miles (8km) from the Columbia River,” Mr Inslee said in a statement. “But nonetheless this is disturbing news for all Washingtonians,” he added. Last week, a leak was reported in one of the storage tanks. Officials said it was leaking at a rate of up 300 gallons (1,136 litres) per year. They said that tests had not detected higher radiation levels near the tanks. Established as part of the Manhattan Project in 1943, Hanford was home to the world’s first full-scale plutonium production facility.