RICHLAND, Wash. – Workers at the Hanford Waste Treatment and Immobilization Plant (WTP) recently filled a diesel fuel oil storage tank with nearly 300,000 gallons of fuel. It was the first time crews filled the tank, which required more than 30 deliveries from a fuel truck delivering 9,700 gallons per visit over three weeks. The 50-by-23-foot tank has a capacity of more than 340,000 gallons and could load the fuel tanks of 19,000 cars. The fuel oil facility is part of the WTP Balance of Facilities. It will provide storage and distribution of diesel fuel to the steam plant, which supplies steam for use in the site’s buildings for process heating and ventilation.