Clean Water Act (CWA)

A district court denied summary judgment for the Navy in a CWA citizen suit concerning the release of fuel into bodies of freshwater on the island of Oahu. Environmental groups sued, arguing the…

A district court granted EPA's motion to dismiss a lawsuit seeking to compel agency action regarding regulation of sewage sludge under the CWA. Texas farmers and ranchers sued EPA, arguing…

The Ninth Circuit affirmed summary judgment in part for the Bureau of Reclamation in a challenge to a California irrigation project that has operated without an NPDES permit since 1997 pursuant to…

A district court granted an environmental group's motion for preliminary injunction in a CWA citizen suit brought against a chemical manufacturer for discharging per- and polyfluoroalkyl…

The Eleventh Circuit affirmed dismissal of a CWA citizen suit brought against a hotel owner for filling a nearby wetland. Environmental groups argued the hotel violated the CWA by failing to…

The Ninth Circuit granted in part environmental groups' petition to review EPA's decision refusing to revise technology-based effluent limits, guidelines, and standards (ELGs) for…

The Sixth Circuit denied environmental groups' petition to review the Tennessee Department of Environment and Conservation's (TDEC's) order issuing a water quality certification for…

A district court enjoined construction on a dam expansion project in Colorado in environmental groups' challenge to the Army Corps of Engineers' issuance of a dredge and fill permit. The…

The Fifth Circuit affirmed denial of summary judgment for two Native American tribes and an environmental group in a challenge to a CWA §404 permit issued by the Army Corps of Engineers to expand…

The U.S. Supreme Court held, 5-4, that the CWA does not authorize EPA to include "end-result" provisions in NPDES permits, in a lawsuit concerning the Agency's issuance of a renewal…