List of Superfund sites in South Dakota


This is a list of Superfund sites in South Dakota 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 26, 2010, there were two Superfund sites on the National Priorities List in South Dakota. No sites are currently proposed for entry on the list. Two sites have been cleaned up and removed from the NPL.

Superfund sites

CERCLIS IDNameCountyReasonProposedListedConstruction
completed		Partially
deleted		Deleted
SDD987673985Gilt Edge MineLawrenceSulfide waste rock and exposed ore zones contain heavy metals, including arsenic, cadmium, chromium, copper, lead, nickel, silver and zinc. These heavy metals, in addition to cobalt and manganese, have been found in Strawberry Creek. Elevated nitrates and sulfates are also present in heap leach residues.05/11/200012/01/2000---
SDD980717136Whitewood CreekLawrenceHeavy metals, including arsenic, cadmium, copper, silver, mercury and cyanide contaminate soil, ground water, and surface water.12/30/198209/08/198309/25/1992-08/13/1996
SD2571924644Ellsworth Air Force BaseMeade and PenningtonOn-site shallow monitoring wells downgradient from the landfills and burn pit are contaminated with 1,1-dichloroethane, 1,2-dichloroethylene, trichloroethylene, arsenic, and chromium.10/26/198908/30/199009/10/199912/04/2006-
SDD000823559Williams Pipe Line Co. Disposal PitMinnehahaSediment in the 7 foot deep unlined pit measuring 9 feet by 9 feet contains barium, beryllium, chromium, copper, iron, lead, zinc, benzene, toluene, xylene, polynuclear aromatic hydrocarbons, and pesticides. Ground water near the pit is contaminated with 4,4'-DDD, 4,4'-DDT, gamma-chlordane, beta-BHC, and lead.10/26/198908/30/199009/29/1994-04/02/1999