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Emhart Industries Inc. v. New England Container Co.

A district court held that an industrial chemical company is not liable for fines for refusing to comply with an administrative order under CERCLA. In an previous decision, the company was found jointly and severally liable for the release of dioxin at the Centredale Manor Restoration Project Superf...

El Paso Natural Gas Co. LLC v. U.S.

A district court held that a natural gas company can seek contribution from the federal government for uranium contamination cleanup under CERCLA. The company filed suit against the federal government for contribution for costs incurred cleaning up 19 former uranium mines on a Navajo reservation as ...

Sinclair Wyoming Refining Co. v. EPA

The Tenth Circuit rejected EPA's decision to deny an oil company's request for an exemption from the blending requirement under the Renewable Fuel Standards Program of the CAA. In 2005, Congress amended the CAA to require refiners and importers to blend biofuels into gasoline to cut down on greenhou...

Mexichem Fluor, Inc. v. EPA

The D.C. Circuit held that EPA overstepped its authority under the CAA when it banned the use of hydrofluorocarbons (HFCs) in products. In 2015, EPA issued a rule that restricted the manufacture of products containing HFCs. EPA based this decision on its authority to regulate "ozone depleting substa...

Chevron Mining Inc. v. DOI

The Tenth Circuit held that a mining company has the right to recover cleanup costs at a Superfund site because the U.S. government was an owner under the statute. Over the last century, the mining company and its corporate predecessors mined molybdenum at a site near Questa, New Mexico. The mining ...

Sierra Club v. EPA

The D.C. Circuit held that EPA must justify emissions limits set for certain hazardous air pollutants. The CAA requires EPA to set limits for seven different hazardous air pollutants (HAPs). In 2015, the Agency claimed to have identified sources of these pollutants and set emissions limits for them....

Spokane, City of v. Monsanto Co.

A district court held that an agriculture company cannot pursue Superfund cost recovery against Spokane, Washington, over polychlorinated biphenyl (PCB) contamination in the Spokane River. The company produced PCBs from 1935 to 1970 that the city of Spokane claimed contributed to the impairment of t...