The nation's only underground nuclear repository has received its first shipment of waste, more than three years after shipping was halted in response to a radiation release that contaminated part of the facility.
The U.S. Energy Department said Monday that the shipment from a federal facility in Idaho marked a milestone for the Waste Isolation Pilot Plant and the government sites where waste left over from decades of nuclear weapons research and development has been stacking up.
The Waste Isolation Pilot Plant was forced to close in February 2014 after an inappropriately packed drum of waste ruptured, hampering the government's multibillion-dollar cleanup program.
Some operations at the repository resumed in December after an expensive recovery effort, but federal officials have acknowledged the resulting backlog.
The facility hopes to receive four shipments a week by the end of 2017.