The 680-acre Uravan Uranium Project (Union Carbide Corp.) site is located in Uravan, Colorado. A radium-recovery plant started operating on site in 1912. From the 1940s to 1984, the plant operated as a uranium and vanadium processing facility. Site activities and waste disposal practices contaminated soil and groundwater with hazardous chemicals and radioactive constituents. Following cleanup, operation and maintenance activities are ongoing.