The U.S. Environmental Protection Agency (EPA) provides an interactive map of hazardous waste cleanups across the United States. The "Cleanups in My Community" map provides a huge amount of information on thousands of cleanups of many kinds. For every cleanup, users can access and download reports, assessments, compliance actions, and the EPA's assessment of the potential for any contaminated land to be used for renewable energy development.

The South Dakota Department of Environment & Natural Resources provides an interactive map of reported spills in the state (yellow triangles in picture above). Spills are reported for hazardous or environmentally harmful materials such as oil, gasoline, pesticides, solvents, acids, and other industrial chemicals. Spill information is provided from the early 1970s to the present and include information on the source, material, location, and date of the spill.