Superfund Site Profile
The 12-acre Double Eagle Refinery Co. site is located in Oklahoma City, Oklahoma. From 1929 until the early 1980s, the Double Eagle Refinery facility re-refined used motor oils through a process of acidulation and filtration. This process generated about 80,000 gallons of oily sludge per month. Operators initially sent the waste sludge to an off-site disposal facility. Later, operators disposed of the sludge in on-site impoundments and a sludge lagoon from the late 1960s to the early 1970s. Double Eagle continued to accept waste oil for storage in on-site storage tanks until 1980. Site activities and waste disposal practices contaminated sludge, soil, sediment and groundwater with hazardous chemicals. Following cleanup, EPA took the site off the Superfund program’s National Priorities List (NPL) in 2008. Operation and maintenance activities are ongoing.