• Updated

The Department of Energy will start buying equipment and making other plans to remove radioactive sludge from a double-shell tank with a leak between its shells. But pumping of waste would start no sooner than March 2016, according to a new DOE plan.

  • Updated

Workers have started moving highly radioactive material, called sludge, away from the Columbia River, marking a significant milestone in the U. S. Department of Energy cleanup of the Hanford Nuclear Reservation site, adjacent to the Columbia River in eastern Washington.