The Second Circuit affirmed a lower court decision that CERCLA preempts state tort law claims brought by residents living near the Onondaga Lake Superfund site. The owner of the site undertook…

The D.C. Circuit vacated EPA's placement of the West Vermont Drinking Water Contamination site, a site of groundwater contamination beneath Indianapolis, Indiana, on the NPL. EPA used the…

The Ninth Circuit upheld a preliminary injunction enjoining California Department of Public Health officials from enforcing the California Medical Waste Management Act (MWMA) against a medical…

The Ninth Circuit held that a property owner who purchased the site at a tax sale is not entitled to CERCLA's third-party defense to liability for cleanup costs. The purchaser had a "…

A district court held that a company is liable under RCRA for soil and water contamination at a former solid waste disposal area it used and operated in Armstrong County, Pennsylvania.…

A Pennsylvania appellate court reversed and remanded a lower court's decision that the owner of an oil and gas company should be liable for failing to plug 47 abandoned oil and gas wells…

The D.C. Circuit clarified an earlier ruling vacating portions of a 2015 rule that defined when certain hazardous materials were deemed discarded—as opposed to legitimately recycled—and therefore…

The D.C. Circuit dismissed a mining company's lawsuit challenging EPA's decision to place the entire Bonita Peak Mining District, located in Colorado's Mineral Belt, on the NPL. The…

A district court dismissed CERCLA claims against a construction company because there was no evidence that its actions contributed to soil contamination near the site. A contractor purchased…

The New Jersey Superior Court upheld an oil company's $225 million Spill Act settlement in connection with contamination at two oil refineries in Bayonne and Linden, New Jersey. The natural…