Supplemental jurisdiction

The Sixth Circuit held that individuals may go forward with their class action suit against a cement manufacturing plant for current and future personal and real property damages, diminution in…

The court holds that the Eleventh Amendment does not bar the removal from state to federal court of a power plant's federal and state claims against a state environmental agency. The power…

The Court holds that the Fifth Circuit lacked jurisdiction over a suit to set aside a 1982 settlement agreement that quieted title to lands on Horn Island, Mississippi, in U.S. favor. After…

The court holds that a district court lacked jurisdiction to hear a former Superfund site operator's four state-law claims against the site's owner. After entering a consent decree with…

The U.S. Supreme Court holds that a case containing claims that local administrative action violates federal law, but also containing state-law claims for on-the-record review of the…

The court holds that it lacks subject matter jurisdiction over third-party indemnification and duty-to-defend claims asserted by a defendant in a Comprehensive Environmental Response, Compensation…

The court holds that the district court lacks subject matter jurisdiction in an action brought by surface and royalty interest owners against past and current operators of an oil field for alleged…

The court declines to exercise supplemental jurisdiction over state-law claims in an action brought by a municipal owner of a contaminated landfill asserting two Comprehensive Environmental…

The court holds that three insurance companies have a duty to defend the former owners of a contaminated site against the current owner's suit for response costs under the Comprehensive…