Frequent Questions

How did EPA determine which environmental enforcement actions are displayed under the Air, Water, Waste and Chemical layers of the Annual Results map?

The enforcement actions displayed on the map for the Air, Water, Waste and Chemical layers are determined by the federal environmental law under which each enforcement action occurred. Listed below are the federal environmental laws represented on the map:

  • Air: Clean Air Act (except Clean Air Act Risk Management Program)
  • Water: Clean Water Act, Safe Drinking Water Act (Underground Injection Control only), Marine Protection, Research, and Sanctuaries Act and Safe Drinking Water Act
  • Waste: Resource Conservation and Recovery Act, Comprehensive Environmental Response, Compensation, and Liability Act (commonly known as Superfund)
  • Chemical: Emergency Planning and Community Right-to-Know Act, Federal Insecticide, Fungicide, and Rodenticide Act, Toxic Substances Control Act , Clean Air Act Risk Management Program

Some EPA enforcement actions are brought under more than one law. Where this is the case, EPA identifies a primary environmental law under which the enforcement action was taken (usually the law that was most seriously violated). These cases are displayed on the map based on the primary law. 

In addition, several layers are contain data specific to a segment of our enforcement activities. These are:

  • enforcement actions taken at federal facilities
  • enforcement actions resulting in cleanup activities
  • criminal cases prosecuted by EPA under federal statutes and the U.S. Criminal Code, and cases in which EPA provided significant support to cases prosecuted under state criminal laws.

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