The 12.8-acre D.L. Mud, Inc. site is located about 2.5 miles southwest of Abbeville, Louisiana. The area was originally part of a 25.6-acre parcel of land used as a drilling mud facility until 1986. The remaining portion of the 25.6-acre parcel is now known as the Gulf Coast Vacuum Services Superfund site. While the facility was open, operators used large tanks and surface impoundments to mix and store raw materials and waste. The types of wastes generated, stored or disposed of at the site were defined as �non-hazardous oilfield wastes,� which can contain hazardous substances. Site activities and waste disposal practices contaminated soil with hazardous chemicals. Following cleanup, EPA took the site off the Superfund program�s National Priorities List (NPL) in 2000. Operation and maintenance activities are ongoing.