Deepwater, New Jersey
The DuPont site is a Formerly Utilized Sites Remedial Action Program (FUSRAP) site that was used from 1942 to 1947 to process and refine uranium for the Manhattan Engineering District project. The site is currently home to an operational chemical facility owned by The Chemours Company. FUSRAP contaminants of concern (COCs) include U-234, U-235, U-238, Th-230, Ra-226; however, those COCs are comingled materials with chemicals, including tetraethyl lead, BTEX, VOCs, SVOCs, heavy metals, and pesticides.
As the self-performing prime contractor, Sevenson’s scope of work includes the handling of radiologically contaminated debris; excavation of >80,000 CY of radiologically contaminated soil and debris up to 16 ft. BGS; 2,330 LF of sheet pile installation to support excavation; transportation and disposal (T&D) via railcar of >79,100 CY; operation of an on-site rad lab, where Sevenson has collected and analyzed gamma spectroscopy and gas-flow proportional counting; and operation and maintenance of an on-site 120-GPM WWTP to year-round operations, treating >22.2M gallons of water. In 2021, the Former DuPont FUSRAP Chambers Works Site was awarded the U.S. DOE Meritorious Service Award and the USACE Project Delivery Team of the Year Award for Excellence.