List of Superfund sites in Maryland
This is a list of Superfund sites in Maryland designated under the Comprehensive Environmental Response, Compensation, and Liability Act environmental law. The CERCLA federal law of 1980 authorized the United States Environmental Protection Agency 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.
The NPL guides the EPA in "determining which sites warrant further investigation" for environmental remediation. As of March 10, 2011, there were 19 Superfund sites on the National Priorities List in Maryland. Two additional sites are currently proposed for entry on the list. Four sites have been cleaned up and removed from the list.
Superfund sites
| CERCLIS ID | Name | County | Reason | Proposed | Listed | Construction completed | Partially deleted | Deleted |
| MDD980691588 | Limestone Road | Allegany | Inorganic chemicals and heavy metals including zinc and lead were detected in on-site soils. Surface water is contaminated with chromium, cadmium, and zinc. Site and residential wells have been found to contain manganese and nickel. | 12/30/1982 | 09/08/1983 | 09/28/2000 | ||
| MD4690307844 | Curtis Bay Coast Guard Yard | Anne Arundel | Soil is contaminated in certain areas with semi-volatile organic compounds, metals, polychlorinated biphenyls, pesticides and dioxin. | 09/13/2001 | 09/05/2002 | |||
| MD9210020567 | Fort George G. Meade | Anne Arundel | Tetrachloroethylene, trichloroethylene, other volatile organic compounds, atrazine and certain pesticides. | 04/01/1997 | 07/28/1998 | 11/12/1999 | ||
| MDD064882889 | Mid-Atlantic Wood Preservers, Inc. | Anne Arundel | 10/15/1984 | 06/10/1986 | 09/23/1993 | 07/18/2000 | ||
| MDD980705099 | Middletown Road Dump | Anne Arundel | 12/30/1982 | 09/08/1983 | 03/17/1986 | 04/18/1988 | ||
| MDD980918387 | 68th Street Dump | Baltimore | 01/19/1999 | |||||
| MDD980555478 | Chemical Metals Industries, Inc. | Baltimore City | 10/23/1981 | 12/30/1982 | 12/30/1982 | |||
| MDD980923783 | Kane & Lombard Street Drums | Baltimore City | 10/15/1984 | 06/10/1986 | ||||
| MDD981038334 | Sauer Dump | Baltimore | 03/10/2011 | 03/13/2012 | ||||
| MDD985366756 | Dwyer Property Ground Water Plume | Cecil | 10/21/2010 | 03/10/2011 | ||||
| MDD982364341 | Ordnance Products, Inc. | Cecil | 05/10/1993 | 09/25/1997 | ||||
| MDD980705164 | Sand, Gravel & Stone | Cecil | 12/30/1982 | 09/08/1983 | ||||
| MDD000218008 | Spectron, Inc. | Cecil | 10/14/1992 | 05/31/1994 | ||||
| MDD980504344 | Woodlawn County Landfill | Cecil | 01/22/1987 | 07/22/1987 | 06/25/2001 | |||
| MD7170024684 | Indian Head Naval Surface Warfare Center | Charles | 02/13/1995 | 09/29/1995 | ||||
| MDD985397249 | Fort Detrick Area B Ground Water | Frederick | 09/03/2008 | 04/09/2009 | ||||
| MD2210020036 | Aberdeen Proving Ground | Harford | 04/10/1985 | 02/21/1990 | ||||
| MD3210021355 | Aberdeen Proving Ground | Harford | 04/10/1985 | 10/04/1989 | 06/11/2001 | |||
| MDD980504195 | Bush Valley Landfill | Harford | 06/24/1988 | 03/31/1989 | 08/02/2001 | |||
| MD0570024000 | Andrews Air Force Base | Prince George's | 07/28/1998 | 05/10/1999 | ||||
| MD0120508940 | Beltsville Agricultural Research Center | Prince George's | 05/10/1993 | 05/31/1994 | ||||
| MD9570024803 | Brandywine Defense Reutilization and Marketing Office | Prince George's | 07/28/1998 | 05/10/1999 | ||||
| MD7170024536 | Patuxent River Naval Air Station | St. Mary's | 01/18/1994 | 05/31/1994 | ||||
| MDD980704852 | Southern Maryland Wood Treating | St. Mary's | 10/15/1984 | 06/10/1986 | 04/23/2001 | 04/05/2005 | ||
| MDD003061447 | Central Chemical | Washington | 06/17/1996 | 09/25/1997 |