DOE completes cocooning of Hanford’s K East Reactor
![](/file/8219/KE ISS cocoon complete 102422.jpg)
The Department of Energy’s Office of Environmental Management (EM) announced that construction of Hanford’s K East Reactor cocoon has been completed ahead of schedule and under budget. Cocooning of K East—enclosing it in a protective steel structure while the reactor’s radioactivity naturally decays—was one of EM’s key construction priorities for 2022.