A district court granted Texas' motion to preliminarily enjoin the 2015 Clean Water Rule in Louisiana, Mississippi, and Texas. The state argued that implementing the rule would require it to spend significant time and taxpayer resources attempting to determine how the U.S. Army Corps of Engineers wi...

The Third Circuit denied review of the Pennsylvania Department of Environmental Protection's decision to grant a CWA §401 certification for a natural gas pipeline project. Environmental groups argued that the department acted arbitrarily and capriciously by issuing a §401 certification that was im...

A Pennsylvania state court granted in part and denied in part an industry trade group's challenge to state rules governing hydraulic fracturing near playgrounds. The group argued that the rules' definitions for "common areas of a school's property" and "playground" were unlawful, unreasonable, and u...