138 L. Ed. 2d 689, 117 S. Ct. 2231, 521 U.S. 591, 1997 U.S. LEXIS 4032, 28 Envtl. L. Rep. (Envtl. Law Inst.) 20173, 97 Cal. Daily Op. Serv. 4894, 1997 Colo. J. C.A.R. 1314, 97 Daily Journal DAR 8025, 65 U.S.L.W. 4635, 11 Fla. L. Weekly Fed. S 128, 37 Fed. R. Serv. 3d 1017