# List of Superfund sites in Missouri

This is a list of Superfund sites in Missouri designated under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) environmental law. The CERCLA federal law of 1980 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. 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 thirty Superfund sites on the National Priorities List in Missouri. One more site has been proposed for entry on the list and five others have been cleaned up and removed from it.

## Superfund sites

    Proposed for addition to National Priorities List
    Deleted from National Priorities List
| CERCLIS ID | Name | City | Reason | Proposed | Listed | Construction completed | Partially deleted | Deleted |
| MO0000958611 | Annapolis Lead Mine | Annapolis | Heavy metal contamination at a former lead mine site, including tailings piles. The most prevalent contaminant is lead, although cadmium, arsenic, and zinc were also present. Two nearby streams were also contaminated. | 03/08/2004 | 07/22/2004 | 09/25/2007 | – | 9/30/2020 |
| MOD046750253 | Armour Road | North Kansas City | The site was used by a series of herbicide businesses, including for manufacturing purposes, between 1948 and 1986. A 1989 inspection detected contamination from arsenic, pentachlorophenol, 2,4-D, and 2,4,5-T. Cleanup activities at the site have included building demolition and removal of contaminated soil. The site has since been redeveloped and now is the location of new businesses. | 01/19/1999 | 05/10/1999 | – | – | – |
| MOD980860522 | Bee Cee Manufacturing Plant | Malden | A manufacturing company that produced aluminum parts for doors and storm windows dumped wastewater directly into the soil. The water was contaminated with chromium. Cleanup at the site has included soil removal and ended in 2010. | 10/15/1984 | 06/10/1986 | 09/10/1999 | – | – |
| MOD981126899 | Big River Mine Tailings/St. Joe Minerals | Desloge | Mine tailings containing lead, cadmium, and zinc were deposited through mining activities conducted by St. Joe Minerals. Some of the tailings have contaminated Big River, and the soil and airborne dust are also affected. Cleanup at the site has including stabilizing eroding tailings piles and capping tailings. Complaints were lodged in 2009 against the methods used by the Doe Run Company to remediate part of the site. | 02/07/1992 | 10/14/1992 | – | – | – |
| MON000706143 | Compass Plaza Well TCE | Rogersville | Groundwater contamination with trichloroethylene was detected by the Missouri Department of Natural Resources in 2010 near a commercial site known as Compass Plaza. The source of the pollution is not known. | 9/16/2011 | 3/15/2012 | – | – |
| MOD000829705 | Conservation Chemical Company | Kansas City | Groundwater contamination from manufacturing chemicals. The site was initially handled by the Resource Conservation and Recovery Act, but was proposed to be added to the Superfund listing on June 24, 1988, as Conservation Chemical Company was deemed by the EPA to be noncooperative. Contamination of both groundwater and soils includes cyanide, phenolic compounds, volatile organic compounds, dioxins, and polychlorinated biphenyl. Conservation Chemical Company had buried some wastes at the site. Buildings and equipment present have been demolished, and a soil cap has been added. | 06/24/1988 | 10/04/1989 | 09/23/1991 | – | – |
| MOD980633010 | Ellisville Site | Ellisville | Soil was contaminated by dioxins and VOCs from oil, chemical and industrial waste disposal. Airborne dust and groundwater contamination were potential risks. | 12/30/1982 | 09/08/1983 | 09/30/1997 | 7/17/2017 | – |
| MOD980631139 | Fulbright Landfill | Springfield | Groundwater and waste contained VOCs, other organic compounds, heavy metals and cyanides. Adjacent river sediments were found to be contaminated with chromium and groundwater flows into these rivers. The site is within the rivers' flood plains. | 12/30/1982 | 09/08/1983 | 06/03/1992 | – | – |
| MOD980631113 | Kem-Pest Laboratories | Cape Girardeau | Contamination at a former pesticide plant, including heptachlor, chlordane, aldrin, and endrin were detected in an aquifer. Drainage channel sediments were also found to be contaminated. It was located in the floodplain of the Mississippi River. | 01/22/1987 | 10/04/1989 | 09/27/1996 | – | 09/20/2001 |
| MO3213890012 | Lake City Army Ammunition Plant | Independence | Groundwater, soil, and surface water are contaminated with VOCs, various explosives, perchlorates, and heavy metals including lead, arsenic, and chromium. | 10/15/1984 | 07/22/1987 | – | – | – |
| MOD980853519 | Lee Chemical | Liberty | Ground water, surface water, and soil are contaminated with TCE. | 10/15/1984 | 06/10/1986 | 03/23/1994 | – | – |
| MOD098633415 | Madison County Mines | Fredericktown | Lead and other heavy metal contamination of groundwater, soil and surface water from former mining sites. | 04/30/2003 | 09/29/2003 | – | – | – |
| MOD980741912 | Minker/Stout/Romaine Creek | Imperial | A horse arena was sprayed with oil for dust control but the oil was contaminated with dioxins. Seven horses died and more became ill. The arena was excavated in 1972 and the contaminated soil was used as fill for residential properties. Sediments in Romaine Creek are also contaminated. | 12/30/1982 | 09/08/1983 | 09/30/1997 | – | – |
| MOD980965982 | Missouri Electric Works | Cape Girardeau | Air, groundwater and soil contamination by VOCs and PCBs from recycling transformer oil. Some waste oil was also used for dust suppression on local properties. | 06/24/1988 | 02/21/1990 | – | 9/14/2021 | – |
| MOD981507585 | Newton County Mine Tailings Site | Granby | Groundwater and soil contamination by lead and cadmium from mining operations. It is estimated that over 700 drinking water wells are contaminated. | 04/30/2003 | 09/29/2003 | 04/13/2009 | – | – |
| MOD985798339 | Newton County Wells | Joplin | TCE contamination of groundwater and drinking water wells from former ball bearing manufacturing plant. | 01/19/1999 | 07/272000 | – | – | – |
| MOD007163108 | North-U Drive Well Contamination | Springfield | Several private wells on North-U Drive were found to be contaminated with volatile organic compounds. The affected wells were located near Fulbright Spring, a major public water source. CERCLA funds were used to connect residences in the area to city water and plug affected wells. The site was removed because the contamination was found to have been caused by petroleum, which is outside of the scope of Superfund operations. | 10/15/1984 | 06/10/1986 | 03/31/1993 | – | 09/08/1994 |
| MOD981717036 | Oak Grove Village Well | Oak Grove Village | TCE contamination of the Oak Grove Village municipal well from an unknown source. | 09/13/2001 | 09/05/2002 | – | – | – |
| MOD980686281 | Oronogo-Duenweg Mining Belt | Jasper County | Significant contamination of groundwater, surface water and soil by cadmium, lead and zinc from mining, milling and smelting of metal ores. At least 200 private drinking water wells are contaminated with lead and cadmium. At least 2,300 residential yards are contaminated with lead and at least 300 homes have been built on or near milling waste piles. | 06/24/1988 | 08/30/1990 | – | – | – |
| MO0000958835 | Pools Prairie | Neosho | Private drinking water wells contaminated with VOCs including TCE and carbon tetrachloride. | 01/19/1999 | 09/17/1999 | – | – | – |
| MOD980860555 | Quality Plating | Sikeston | Groundwater contamination by lead and hexavalent chromium from former electroplating operations. | 01/15/1984 | 06/10/1986 | 09/28/1999 | – | – |
| MOD981720246 | Riverfront | Franklin | Groundwater, surface water, and soil are contaminated with PCE. | 07/27/2000 | 12/01/2000 | – | 9/14/2021 | – |
| MOD980685838 | Shenandoah Stables | Moscow Mills, Missouri | A horse arena sprayed with dioxin-laced oil in 1971 for dust control. A number of animals, including 40 horses, died as a result, and several humans were sickened. The contaminated soil was later dumped elsewhere as fill. Cleanup efforts were officially declared completed in 1997. | 12/30/1982 | 09/08/1983 | 09/30/1997 | – | 09/25/2001 |
| MOD980854111 | Solid State Circuits, Inc. | Republic | Groundwater is contaminated by VOCs, including TCE, methylene chloride and chloroform. Contaminated soil has been cleaned up. | 10/15/1984 | 06/10/1986 | 11/18/1993 | – | – |
| MOD980633176 | St. Louis Airport/Hazelwood Interim Storage/Futura Coatings Co. | St. Louis | Soil contamination by uranium, thorium and radium and groundwater uranium contamination from uranium ore processing associated with the Manhattan Project and from transportation and dumping of process residues. The site encompasses dozens of locations in North St. Louis County including the length of Cold Water Creek. Wastes with the same origin were also trucked to the West Lake Landfill, listed separately. | 05/05/1989 | 10/04/1989 | – | – | – |
| MON000705443 | Southwest Jefferson County Mining | Jefferson County | Extensive lead contamination of soils at at least 594 residential properties and in at least 39 private drinking water wells, from former mining, milling and smelting operations. | 04/09/2009 | 09/23/2009 | – | – | – |
| MON000703541 | Sporlan Valve Plant#1 | Washington | | | 5/15/2019 | | |
| MOD007452154 | Syntex Facility, Inc. | Verona | Soil, surface water and groundwater contaminated by dioxins and VOCs and Spring River aquatic life contaminated by dioxins, from chemical manufacture. | 12/30/1982 | 09/08/1983 | 09/16/1998 | – | – |
| MOD980685226 | Times Beach Site | Times Beach | Beginning in the 1970s, the city had its unpaved roads sprayed with oil to keep down dust. The contractor who sprayed the oil mixed it with waste from a company that had manufactured Agent Orange to lower costs, which introduced hexachlorophene and dioxin contaminants. About 265,000 short tons (237,000 long tons) of soil became contaminated, and the entire town was evacuated and demolished. The site is now Route 66 State Park. | 03/04/1983 | 09/08/1983 | 09/30/1997 | – | 09/25/2001 |
| MOD980968341 | Valley Park TCE | Valley Park | Groundwater contamination by VOCs including PCE and trichloroethane. Municipal and industrial water supplies are affected. | 04/10/1985 | 06/10/1986 | 09/19/2006 | – | – |
| MON000705803 | Vienna Wells | Vienna | Three drinking water wells are contaminated with PCE believed to come from the site of a former hat factory. | 03/04/2010 | 9/29/2010 | – | – | – |
| MON000705842 | Washington County Lead District - Furnace Creek | Caledonia | | | 3/10/2011 | | |
| MON000705027 | Washington County - Old Mines | Old Mines | Surface soil at 290 residential properties and 124 private drinking water wells are contaminated with lead. Occasional elevated levels of barite, arsenic, and cadmium have also been identified at the site. | 09/19/2007 | 03/19/2008 | – | – | – |
| MON000705023 | Washington County - Potosi | Potosi | Surface soil at 716 residential properties and 138 private drinking water wells are contaminated with lead. Occasional elevated levels of barite, arsenic, and cadmium have also been identified. | 09/19/2007 | 03/19/2008 | – | – | – |
| MON000705032 | Washington County - Richwoods | Richwoods | Surface soil at 65 residential properties and 49 private drinking water wells are contaminated with lead. Occasional elevated levels of barite, arsenic, and cadmium have also been identified. | 09/19/2007 | 03/19/2008 | – | – | – |
| MO5210021288 | Weldon Spring Former Army Ordnance Works | St. Charles | TNT, DNT, and lead have been identified in soil at several areas on the site, and TNT was detected in 1987 in surface water downstream of the lagoons. | 07/14/1989 | 02/21/1990 | 08/24/2005 | – | – |
| MO3210090004 | Weldon Spring Quarry/Plant/Pits (USDOE/USARMY) | St. Charles | Wastewater containing sulfonate derivatives contaminated surface water and groundwater. Residues from uranium ore, thorium ore, radium, TNT, and DNT residues. | 10/15/1984 | 07/22/1987 | 08/22/2005 | – | – |
| MOD079900932 | Westlake Landfill | St. Louis | Soils mixed with uranium ore processing residues were used as daily cover in the landfilling operation. | 10/26/1989 | 08/30/1990 | – | – | – |
| MOD000830554 | Wheeling Disposal Service Co, Landfill | Amazonia | Hazardous wastes were dumped in a landfill in the early 1980s, including pesticides, cyanide, and asbestos. Testing in 1980, 1982, and 1983 detected trichloroethylene, chloroform, and 1,2-dichloroethane in wells and springs onsite. Both the soil and groundwater in the area were determined to be contaminated. Cleanup at the site included improving the landfill cover and installing a barrier around the site. | 01/22/1987 | 10/04/1989 | 09/27/1994 | – | 10/30/2000 |