In 17 months, Rocky Flats in Golden, Colorado will remove all weapons-grade plutonium.
Plutonium is the most toxic material at the former Rocky Flats nuclear weapons plant.
It will be stored at the Department of Energy's Savannah River, S.C., plant. The Department of Energy recently certified the shipping containers in hopes of speeding up the removal process. In March, a report declared the Rocky Flats cleanup was behind schedule. Other types of waste will be shipped from Rocky Flats to a burial site in New Mexico. Currently, 5-9 shipments leave per week.