Superfund Site Profile
The Arkansas City Dump is a 200-acre site in Arkansas City, Kansas. From 1916 to the mid-1920s, an oil refinery on the site deposited 1 million cubic feet of sludge containing sulfuric acid, polynuclear aromatic hydrocarbons (PAHs), heavy metals, ammonia and sulfur. After a fire burned down the refinery in 1927, the city dumped municipal wastes at the site. Between 500,000 and 1 million gallons of residual oil product from the refinery operation were present in the subsurface soils that contain PAHs. However, these are not migrating through the soil and do not present a threat to public health or the environment. Following cleanup, EPA took the site off the Superfund program’s National Priorities List (NPL) in 1996. Operation and maintenance activities and monitoring are ongoing.