The First Circuit affirmed in part and reversed in part a ruling in a CWA citizen suit brought against developers of a construction site in Worcester, Massachusetts. An environmental group argued…

The Fourth Circuit affirmed summary judgment for a coal company in a lawsuit concerning the company's alleged mine pollution discharges that had been permitted under a CWA permit.…

The Fourth Circuit affirmed summary judgment for the Army Corps of Engineers in a challenge to the Corps' issuance of a permit to construct a jetty to prevent beach erosion in North Carolina…

The Second Circuit denied a petition to review two FERC orders that determined the New York State Department of Environmental Conservation (NYDEC) had waived its authority under §401 of the CWA to…

A district court denied a motion for preliminary injunction in a lawsuit concerning irrigation of a golf course in Big Sky, Montana. Environmental groups argued a Montana water district over-…

A state court reversed the Maryland Department of the Environment's (MDE's) decision to reissue an NPDES general permit for animal feeding operations without limitations on the discharge…

The Fourth Circuit granted a pipeline company's petition to review the North Carolina Department of Environmental Quality's (NCDEQ's) denial of a CWA §401 certification for…

The Tenth Circuit reversed and vacated a district court order preliminarily enjoining EPA and the Army Corps of Engineers from implementing the 2020 Navigable Waters Protection Rule (NWPR) in…

The Fourth Circuit stayed a pipeline company's use of a nationwide permit, verified by the Army Corps of Engineers, to carry out construction of the Mountain Valley Pipeline in streams and…

The Montana Supreme Court affirmed vacatur of a Montana Pollutant Discharge Elimination System (MPDES) permit issued by the Montana Department of Environmental Quality (MDEQ) for a copper and…