ENVIRONMENTAL DEFENSE FUND v. U.S.E.P.A.

Attorney(s) appearing for the Case

Robert V. Percival, with whom, Alan S. Miller, Washington, D.C., Debra Hirshkowitz, (student counsel) and Jan Wagner (student counsel), were on the brief, for petitioner.

Scott A. Schachter, Atty., Dept. of Justice, with whom, Roger J. Marzulla, Acting Asst. Atty. Gen. and Margaret B. Silver, Atty., E.P.A., Washington, D.C., were on the brief, for respondent.

John N. Hanson, with whom, Donald J. Patterson, Jr., Edward M. Green, Washington, D.C., Roderick T. Dwyer for American Mining Congress; Richard A. Flye, Christian Volz, Carole Stern, Washington, D.C., for the Fertilizer Institute; Alfred V.J. Prather, Kurt E. Blase, Washington, D.C., for Kennecott and Robert M. Tyler, Jr., Boise, Idaho, for Idaho Mining Ass'n were on the joint brief for intervenors, American Mining Congress, et al. Kaye L. O'Riordan, Boise, Idaho, also entered an appearance for intervenor, Idaho Mining Ass'n.

Before MIKVA and SILBERMAN, Circuit Judges, and OBERDORFER, District Judge.