The Ninth Circuit held that in allocating liability to a nonsettling defendant in a CERCLA contribution action, a district court has discretion to determine the most equitable method of accounting for settlements between private parties. Agreeing with the First Circuit and declining to follow the re...

The Fourth Circuit held that a public utility that sold used PCB-containing electrical transformers in the 1980s to a company for reconditioning and resale should not be held liable under CERCLA as an arranger. EPA added the site to the NPL in the mid-2000s, and the current owners of the site bore m...

A district court dismissed a town's Massachusetts Oil and Hazardous Material Release Prevention and Response Act claim against the corporate spinoffs of Old Monsanto, the sole manufacturer of PCBs in the United States between 1935 and 1979. After discovering PCBs in some of the area schools, the tow...

The U.S. Supreme Court held that mere knowledge of continuing spills and leaks is insufficient grounds for holding a company liable as an arranger under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). Under the plain language of CERCLA §107(a)(3), an entity may q...

The Third Circuit upheld a lower court decision dismissing, on standing grounds, a doctor's claim challenging the constitutionality of a Pennsylvania law that limits a doctor's ability to obtain information about the mixture of chemical fluids used during hydraulic fracturing when treating patients ...

A Massachusetts court dismissed residents' lawsuit seeking a declaratory judgment that the state's environmental agency failed to comply with §3(d) of the Global Warming Solutions Act (GWSA). The GWSA is a legislative scheme designed to address the effects of climate change in Massachusetts by prom...

An Ohio court struck down a city's ban on drilling new oil and gas wells within its jurisdiction. On the one hand, the ban is a clear exercise of the city's police power; by attempting to ban oil and gas drilling, the city is trying to protect the public health and general welfare. But the ban is in...

An Arizona court overturned the state's issuance of an air permit for a proposed open-pit copper mine. An environmental group argued that the state's approval of the permit was arbitrary and capricious because the mine has the potential to violate NAAQS. They also claimed that the mine's modeling re...

The California Supreme Court reversed a lower court decision that a developer's proposal to demolish an existing home and build a 10,000 square-foot single-family home on the lot may not be categorically exempt from environmental review under the California Environmental Quality Act (CEQA). After th...

The Ninth Circuit upheld the dismissal of a trucking association's federal preemption challenge to a California environmental regulation on diesel trucks. The regulation requires heavy-duty diesel trucks, whose emissions contribute significantly to particulate matter and ozone pollution, to be upgra...