503 U.S. 91 503 U.S. 91 112 S.Ct. 1046 117 L.Ed.2d 239 ARKANSAS, et al., Petitioners,v.OKLAHOMA et al. ENVIRONMENTAL PROTECTION AGENCY, Petitioner, v. OKLAHOMA et al. Nos. 90-1262, 90-1266. Argued Dec. 11, 1991. Decided Feb. 26, 1992. Syllabus The Clean Water Act provides for two sets of water quality measures: effluent limitations, which are promulgated […]
