The EPA is the primary Federal agency regulating pollution in the United States of America. The EPA web site provides a great deal of information about the agency and its various programs. For assistance with EPA materials, contact one of the EPA libraries.
Decisions: Lexis has databases for: EPA Administrative Law Judge decisions (ENVIRN;EPALD); EPA Regional Judicial Officer Decisions (ENVIRN;EPARJO); and most EPA documents made available to the public, via the Environmental Law Institute's Guidance & Policy Document Reporter (ENVIRN;GUIDOC).
To see how EPA decisions have been handled by later decisions and the courts, run the citation through KeyCite on Westlaw.
Enforcement Actions: Docket information is available online and directly from the EPA. See How to Contact EPA Dockets.
Supplemental Environmental Projects: A party caught in an EPA enforcement action can volunteer to clean up the polluted site as a way of reducing the ultimate penalty. The clean-up is called a "Supplemental Environmental Project" or "SEP." Information about SEPs is posted posted on the Supplemental Environmental Projects page of the EPA Web site.