The U.S. Supreme Court unanimously held that a settlement of environmental liabilities must resolve a CERCLA-specific liability to give rise to a contribution action under §113(f)(3)(B), in a lawsuit concerning a landfill in Guam formerly owned by the U.S. Navy. After entering into a consent decree...

A district court granted summary judgment for a utility company in a lawsuit concerning groundwater discharges from coal ash ponds at its power plant in Kentucky. Environmental groups argued that the discharges threatened immediate and substantial environmental harm to a nearby lake and streams, in ...

The Ninth Circuit remanded, 2-1, a rule EPA promulgated in 2019 in response to the court's 2017 writ of mandamus directing the Agency to respond to the need for updated lead-based paint hazard standards. Nonprofit groups argued the rule violated provisions of the the Residential Lead-Based Paint Haz...