United States of America and State of Colorado v. Broderick Investment Company, Tom H. Connolly, as Trustee, and Burlington Northern Railroad Company
United States of America and Commonwealth of Massachusetts v. Boston & Maine Corporation, BNZ Materials Inc., and Massachusetts Bay Transportation Authority
United States of America v. Blue Tee Corp. Gold Fields Mining LLC and The Doe Run Resources Corporation
United States of America, State of Washington, Puyallup Tribe of Indians and Muckleshoot Indian Tribe v. BHP Hawaii, Inc.