The First Circuit vacated a district court order staying a CWA and RCRA citizen suit brought against an oil company. An environmental group argued, among other things, that the company had…

The Seventh Circuit affirmed dismissal of a CWA citizen suit brought against the owner of a coal-fired power plant in Illinois. An environmental group argued the owner violated the CWA by…

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In an unpublished opinion, the Fourth Circuit upheld the Army Corps of Engineers' decision to grant Maryland a CWA §404 permit for a mass transportation project.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 Ninth Circuit reversed a district court's dismissal of a Native American tribe's breach of trust claim in a lawsuit concerning water rights to the Colorado River. The tribe initially…

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 U.S. Supreme Court, in an ongoing dispute between Florida and Georgia over the apportionment of the Apalachicola-Chattahoochee-Flint River Basin's waters, agreed unanimously with a…