A state court preliminarily enjoined the New Hampshire Department of Environmental Services (DES) from enforcing new rules that tightened allowable limits of per- and polyfluoroalkyl substances (PFAS) in the state's drinking water and groundwater. A chemical manufacturing company argued that DES vio...

In an unpublished opinion, a state appellate court reversed a lower court decision that ordered a Michigan township to issue a zoning permit to a food and beverage company to construct a well pumping station on agricultural land. The lower court had concluded that the company's proposed pumping stat...

A district court held that environmental groups lacked standing in their challenge to EPA's exclusion of certain waste treatment systems from the definition of navigable waters under the CWA. The groups argued that they had representational standing to challenge the exclusion, relying on declaration...

A district court upheld EPA's interpretation that the CWA does not regulate discharges into groundwater that is hydrologically connected to navigable waters in a lawsuit concerning a wastewater treatment facility on Cape Cod. An environmental group argued that the facility was discharging pollutants...

A district court denied summary judgment in a challenge to EPA's approval of Maryland's 2018 water quality report, which reclassified 139 impairment listings based on TMDLs set by the Agency for the entire Chesapeake Bay. Environmental groups argued that EPA exceeded its authority under the CWA by a...

A district court granted summary judgment to timber industry groups in a challenge to President Obama's designation of approximately 40,000 acres of federal timber land (O&C land) as part of the Cascade-Siskiyou National Monument. The groups argued that the proclamation violated the Oregon and C...