United States of America and the State of West Virginia v. Consol Energy Inc., Consolidated Coal Company and Windsor Coal Company
United States of America and the State of Indiana v. the City of Evansville, Indiana and Evansville Water and Sewer Utility Board
United States of America, the State of West Virginia and the Commonwealth of Kentucky v. Arch Coal, Inc., Coal Mac, Inc., Mingo Logan Coal Company, Lone Mountain Processing, Inc., and Cumberland and River Coal Company
United States of America v. The United Illuminating Co., and The Fitchburg Gas and Electric Light Company
United States of America and the State of Illinois v. City of Waukegan, Elgin, Joliet & Eastern Railway Company, General Motors Corporation, Larsen Marine Service, Inc. and the North Shore Gas Company