The Ninth Circuit, 2-1, affirmed in part and reversed in part dismissal of a challenge to EPA's withdrawal of a previously proposed determination restricting mining operations in part of…

A district court granted partial summary judgment in a CWA citizen suit brought against the owner of a mine in Washington. The state of Washington and an environmental group argued the mine owner…

A district court granted a conservation group's motion for summary judgment in a lawsuit concerning a California resident's recreational gold mining in a river in Idaho. The group argued…

In an unpublished opinion, the Fourth Circuit upheld the Army Corps of Engineers' decision to grant Maryland a CWA §404 permit for a mass transportation project. An environmental group and…

The Tenth Circuit denied a company's petition to review an Environmental Appeals Board (EAB) decision denying its petition to review a 2017 permit issued by EPA to an upstream wastewater…

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-…