A district court held that a PRP established the divisibility defense and, therefore, is not jointly and severally liable for cleanup costs at the Lower Fox River Superfund site in Wisconsin. On remand from the Seventh Circuit, the district court was ordered to reconsider the PRP's divisibility defe...

The D.C. Circuit ordered EPA to submit a timeline for when it will issue its financial assurance rules under CERCLA to ensure that industries that handle hazardous substances have the financial means to clean up any releases. It has been nearly 30 years since Congress charged EPA with issuing such r...

The Ninth Circuit held that EPA violated the CAA when it approved California SIPs concerning NAAQS for ozone and fine particulate matter in the San Joaquin Valley. The SIPs relied on state-adopted mobile emissions standards to achieve their emission reduction goals. But the SIPs approved by EPA did ...

The Ninth Circuit denied community groups' petition for review challenging EPA's approval of revisions to California's SIP concerning air emissions from pesticides, known as the "pesticide element." The revisions related to the reduction of volatile organic compounds in the San Joaquin and Ventura a...

A district court held that a corporation subject to an EPA unilateral administrative order (UAO) in connection with the Columbia Nitrogen Superfund site in Charleston, South Carolina, may seek contribution under CERCLA §113 and not §107. Defendant companies argued that the corporation was preclude...