List of Superfund sites in Colorado

This is a list of Superfund sites in the U.S. State of Colorado designated under the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) environmental law. The CERCLA federal law authorized the United States Environmental Protection Agency (EPA) to create a list of polluted locations requiring a long-term response to clean up hazardous material contaminations.P.L. 96-510, (), December 11, 1980. These locations are known as Superfund sites, and are placed on the National Priorities List (NPL).

The NPL guides the EPA in "determining which sites warrant further investigation" for environmental remediation. As of May 1, 2010, there were eighteen Superfund sites on the National Priorities List in Colorado. Two more sites have been proposed for entry on the list and three others have been cleaned up and removed from it.

Superfund sites

CERCLIS IDNameCountyReasonProposedListedConstructioncompletedPartiallydeletedDeletedCO7570090038Air Force Plant PJKSJefferson Groundwater, surface water, soil and buildings contaminated by TCE, PCBs and NDMA.07/14/1989 11/21/1989 COD007063530ASARCO, Inc. (Globe Plant)Adams Groundwater, surface water, sediment and soil contamination by cadmium, lead, arsenic and zinc from metals smelting and refining. 05/10/1993 COD000110254Broderick Wood ProductsAdams Soil, surface water and groundwater contamination by PAHs, PCP byproducts, dioxins and furans; sludge, liquid waste from a former wood treatment plant.09/08/1983 09/21/1984 COD980717938California GulchLake Soil, sediment, surface water and groundwater contamination by lead, arsenic other metals and acidic mine drainage, and liquid and solid waste and sludge from mining, milling and smelting. (see Leadville mining district)07/14/1989 11/21/1989 COD981551427Captain Jack MillBoulder Solid waste, soil and surface water contamination by zinc, cadmium, copper and lead from mining and smelting. 04/30/2003 09/29/2003 COD980717557Central City/Clear CreekClear Creek Soil, groundwater and surface water contamination, leaching and liquid waste contaminated with heavy metals such as zinc, copper, manganese, cadmium, lead and arsenic, from mining and milling operations within the watershed. (see Argo Tunnel) 12/30/1982 09/08/1983 COD007431620Chemical Sales CompanyDenver Liquid and solid waste, groundwater, air and soil contamination by various compounds.06/24/1988 08/30/1990 COD980716955Denver Radium SiteDenver Air, soil and groundwater contamination by radium, thorium, uranium, arsenic, lead and radon gas from radium ore processing.12/30/1982 09/08/1983 COD081961518 Eagle Mine Eagle Groundwater, surface water, solid waste, soil, liquid waste, debris and sediment contaminated by arsenic, cadmium, copper, lead and zinc.10/15/1984 06/10/1986 COD042167858Lincoln ParkFremontAir, groundwater, surface water, and soil are contaminated with radionuclides and metals including molybdenum, uranium, and uranium daughter products from uranium milling by Cotter Corporation.09/08/1983 09/21/1984 COD980499248Lowry LandfillArapahoe Liquid and solid waste, debris; soil, surface water, groundwater, sediment and leaching contaminated by chemicals, solvents and sludges; gas emissions from buried waste. 10/08/1983 09/21/1984 COD980499255Marshall LandfillBoulder Surface water, ground water, soil and liquid waste contaminated by benzene, TCE, PCE, barium, iron, manganese and zinc.12/30/1982 09/08/1983 CON000802630Nelson Tunnel/Commodore Waste RockMineralSurface contamination and mining waste rock pile contaminated with arsenic, cadmium, lead and zinc.03/19/2008 09/03/2008 CO7890010526Rocky Flats Plant (DOE)Jefferson Soil, surface water, groundwater and air contamination by plutonium, americium, uranium and VOCs from nearly forty years of nuclear weapons manufacturing. The plant was closed after being raided by the Federal Bureau of Investigation and EPA.07/14/1989 11/21/1989 CO5210020769Rocky Mountain Arsenal (US Army)Adams Soil, surface water and groundwater contamination by aldrin, dieldrin, DBCP and arsenic from chemical weapons and pesticide manufacture.10/15/1984 07/22/1987 COD980717953Sand Creek IndustrialAdams Soil, solid waste, liquid waste, groundwater, surface water and air contamination and debris contaminated by VOCs, pesticides, herbicides and arsenic from an oil refinery, a pesticide manufacturing facility, acid pits and a landfill.12/30/1982 09/08/1983 12/20/1996COD983769738SmeltertownChaffee Groundwater, soil and surface water contamination and solid waste contaminated by arsenic, cadmium, copper, lead, manganese, zinc, pentachlorophenol and creosote from smelting, wood treatment and zinc sulfate manufacture.02/07/1992 COD980806277Smuggler MountainPitkin Groundwater and soil contamination by lead and cadmium from historical mining operations.10/15/1984 06/10/1986 09/23/1999CO0002378230Standard mineGunnison Surface water, groundwater and soil contamination by arsenic, lead, zinc, cadmium, copper, chromium and manganese from an isolated former mine at 11,000 ft altitude.04/27/2005 09/14/2005 COD983778432Summitville mineRio Grande Surface water, groundwater and soil contamination by copper, cadmium, manganese, zinc, lead, nickel, aluminum and iron, leaching into the Alamosa River system from an isolated former mine at 12,500 ft altitude.05/10/1993 05/31/1994 COD007063274Uravan Uranium Project (Union Carbide Corp.)Montrose Air, groundwater, surface water, soil and sediment contamination and solid waste and debris contaminated with raffinates, raffinate crystals, lead, arsenic, cadmium and vanadium from a radium recovery plant and uranium and vanadium processing.10/15/1984 06/10/1986 CO0002259588Vasquez Boulevard and I-70Denver Lead and arsenic contamination of soil, from metal smelting and/or lawncare products.01/19/1999 07/22/1999 COD980667075Woodbury ChemicalAdams Soil and debris contaminated with chlorinated pesticides, heavy metals and VOCs from former pesticide plant.12/30/1982 09/08/1983 03/22/1993

List of Superfund sites in Colorado

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