A district court dismissed two Pennsylvania state senators' challenge to the Delaware River Basin Commission's imposition of a moratorium on gas drilling and hydraulic fracturing in the Delaware Basin. The senators argued, among other things, that the moratorium exceeded the Commission's authority. ...

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 the defendant violated the CWA by suction dredge mining during the 2014, 2015, and 2018 dredging seasons without ...

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 southwest Alaska's Bristol Bay watershed. A conservation group had argued the withdrawal violated the CWA and EPA...