A third aging underground tank at the Hanford nuclear site is suspected of leaking highly radioactive and hazardous chemical waste into the ground, the Department of Energy said Thursday. “This is ...

GARFIELD — A disabled Pittsburgh area man is calling for answers and an immediate fix, after a leaking valve in Garfield has prevented him from safely leaving his home and has created what he calls a ...

Two options that might speed up removal of radioactive waste from leaking underground storage tanks at Hanford will be evaluated, according to the terms of a settlement agreement reached Wednesday.

Identifying and then repairing leaky steam- and water-cycle isolation valves is a quick and cost-effective way to improve plant efficiency. Despite the obvious opportunities for recovering lost ...