This site is a former wood treating plant located in Albuquerque, New Mexico, and the Rio Grande and the Rio Grande Valley State Park are located approximately one mile to the west. Wood products treated included railroad ties, bridge timbers, and fence posts. The preservatives at the Site were typically straight creosote, and a creosote and oil mixture. Creosote is a very complex mixture of numerous organic compounds known as polycyclic aromatic hydrocarbons (PAHs), and many PAHs are considered carcinogenic substances. Additionally other compounds were utilized during the plant operations that included drying agents or weed control that contained zinc chloride, copper and arsenic. Washdown waters, spills and leakage were disposed of in an unlined impoundment covering approximately 3.4 acres. The facility is a part of the plant property that totaled more than 85 acres in 1907, and was constructed from 1907 to 1908. The facility operated as a wood pressure treatment plant from March 1908 to January 1972, and primarily used creosote and oil mixtures for the manufacture of pressure treated wood products. In 1972, the plant was totally dismantled, and the only physical feature remaining on-site is the wastewater reservoir/wastewater sump. Most of the organic contamination found at the site occurs as a dense non-aqueous phase liquid (DNAPL) with organic compounds that slowly dissolve into the ground water. The soil contaminants consist of Polynuclear Aromatic Hydrocarbons (PAHs) and zinc. The closest residential area is about 0.5 miles to the southwest and a single residence (mobile home) is located about 600 feet west of the site. Two major residential areas are located about 2 miles north and 1.5 miles south of the site. Major population centers are located either west of the Rio Grande, north of Woodward Drive or east of Interstate 25. In July 1990, approximately 8,250 tons of creosote-contaminated soil and debris were removed. The State of New Mexico and Department of the Interior - U.S. Fish and Wildlife Service are trustees for natural resources injured by releases at the site.