Advanced Modular Pretreatment System - Construction Services

The U.S. Department of Energy (DOE), Hanford Field Office (HFO), is dedicated to retrieving and treating Hanford’s tank waste and closing the Tank Farms to safeguard the Columbia River. Currently, mixed radioactive waste is stored in 177 underground tanks at the Hanford Site, as documented in DOE 2003-02, Environmental Impact Statement for Retrieval, Treatment, and Disposal of Tank Waste and Closure of Single-Shell Tanks at the Hanford Site, Richland, WA. These tanks contain approximately 54 million gallons of waste, consisting of solids (sludge), liquids (supernate), and saltcake (salts formed through evaporation processes).