Hanford Engineer Works produced the 20 pounds of plutonium for the bomb dropped on Nagasaki. It’s among the most toxic nuclear waste sites and the place Japan is turning to for help dealing with melted reactors in Fukushima.
Tokyo Electric Power Co. has sent engineers on visits to the Hanford site in Washington state this year to learn from decades of work treating millions of gallons of radioactive waste. Hanford also has a method to seal off reactors known as concrete cocooning that could reduce the 11 trillion yen ($112 billion) estimated cost for cleaning up Fukushima.
