The Tanacross Airfield Site comprises of 7,705 acres and is located approximately 12 miles northwest of Tok. The military occupied the site from May 1941 through October 1945. After the war ended, the facility was turned over to the Civil Aeronautics Administration (CAA) and the Bureau of Land Management (BLM). Over the years several additional agencies including the Federal Aviation Administration (FAA), the Army, the United States Fish and Wildlife Service (USFWS), and the Alaska Fire Service (AFS), have used portions of the site and adjacent land at varying times. Reported potential contaminants on site in unknown quantities include petroleum, oil, lubricant wastes, solvent, pesticides. Reports of 2500, 55 gallon barrels buried in 1974 and 120 empty POL barrels on site. Dates of disposal, presence or extent of contamination unknown. Corps of Engineers preliminary assessment determined that barrels may have contained fire retardant, possibly Borate. EPA IDs AK7141190085 and AKSFN1002144 --CERCLIS site.