Big Sioux River Watershed Site

Big Sioux River Watershed Site is a superfund site located at Entire Length Of River In Sd, Sioux Falls, SD 57103. The Environmental Protection Agency (EPA) identifies sites such as Big Sioux River Watershed Site because they pose or had once posed a potential risk to human health and/or the environment due to contamination by one or more hazardous wastes. Big Sioux River Watershed Site is currently registered as an Active superfund site by the EPA. However, it is not on the NPL (National Priorities List), which means the EPA does not consider it one of the nation's most hazardous waste sites.