The Department of Energy has released a 12-minute video looking at efforts to clean up environmental contamination along the Columbia River at Hanford.
The video is the seventh "chapter" in a series of videos telling the story of the Hanford nuclear reservation, which produced plutonium for the nation's nuclear weapons program during World War II and the Cold War.
The 220-square-mile area along the Columbia River that the Department of Energy calls the river corridor, included nine plutonium production reactors that produced almost two-thirds of the nation's plutonium.
The river corridor also includes the 300 Area just north of Richland, where more than 20 million slugs of uranium rods were produced to fuel the reactors.
Cleanup of the river corridor is more than half completed, with future plans for the area including recreation, conservation and some limited industrial use just north of Richland.
The video can be seen at tricityherald.com .