Superfund Site: ALCOA (VANCOUVER SMELTER)
Superfund Site Profile
The 300-acre Alcoa (Vancouver Smelter) site is located next to the Columbia River in
Vancouver, Washington. The former Aluminum Company of America (Alcoa) operated an aluminum smelter on the western portion of the site between 1940 and 1985. From 1973 until 1981, operators dumped about 66,000 tons of potliner containing cyanide and fluoride outside the smelter on the ground. Potliner is a special lining material used to protect steel pots. Site activities also included the storage and disposal of other industrial and solid wastes from construction and operation of the smelter in waste piles and on-site landfills. These activities contaminated the soil and ground water with cyanide, fluoride and alumina. Following cleanup, EPA took the site off the Superfund program’s National Priorities List (NPL) in 1996.