After manufacturing plutonium for U.S. atomic weapons from 1949 to 1989 and 20 years of cleanup prep and phased demolition, the Plutonium Finishing Plant at the U.S. Energy Dept.’s Hanford nuclear waste site in Washington state—a complex of 90 structures that is one of the site’s most toxic areas—was reduced to rubble last month.
Crews from CH2M, a key site environmental contractor that was acquired by Jacobs in 2017, finished demolition of the complex's highly contaminated building 234-5Z last month.