United States v. Power Engineering Company Redoubt, Ltd. And Richard J. Lilienthal, Defendants-Third-Party v. Jack Lilienthal, Third-Party-Defendant

EBEL, Circuit Judge.

Plaintiff-Appellee United States, acting on behalf of the Environmental Protection Agency (“EPA”), sought a mandatory preliminary injunction directing Defendant-Appellants Power Engineering Company (“PEC”), Redoubt, Ltd., and Richard J. Lilienthal (collectively, “Defendants”), to comply with the financial assurance regulations adopted by the Colorado Department of Public Health and Environment (“CDPHE”) under authority delegated to Colorado by the EPA pursuant to the Resource Conservation and Recovery Act of 1976 (“RCRA”). The district court granted the mandatory…