The Third Circuit affirmed a district court ruling that the U.S. government was not liable to a coatings company for cleanup costs at a chromite ore processing plant with which it was involved during World War I and World War II. The district court concluded the government was not subject to operato...

A district court dismissed a challenge to a pipeline company's failure to seek a CWA permit for construction of a natural gas pipeline in Pennsylvania. A conservation group argued the company violated the CWA by failing to obtain an NPDES permit for its stormwater discharges after construction began...

A district court dismissed a challenge to EPA's decision to withdraw proposed restrictions pursuant to CWA §404(c) for the proposed Pebble Mine in Southwest Alaska. Nonprofit groups argued the decision was arbitrary and capricious, in violation of the APA. EPA argued the exercise of its authority u...

The U.S. Supreme Court affirmed in part and vacated in part the Montana high court's ruling in a lawsuit concerning cleanup actions across a 300-square-mile Superfund site in Butte. Landowners whose properties are located within the site brought trespass, nuisance, and strict liability claims under ...

The U.S. Supreme Court held, 6-3, that the "functional equivalent of a direct discharge" of pollutants requires a CWA permit, and remanded for consideration of whether a discharge of pollutants into groundwater that later discharged into the Pacific Ocean meets this standard. Environmental groups ar...