(decided March 4, 2025) The federal Clean Water Act authorizes the Environmental Protection Agency (the “EPA”) to set “effluent limitations” on discharges into a body-of-water by authorized permittees, for the purpose of maintaining established water quality standards in that body-of-water. 33 U.S.C. Section 1331(b). In this case, the Court ruled 5-4 that that statute did Continue reading