A district court held a petroleum company liable for $159.5 million in civil penalties under the CWA in connection with the 2010 Deepwater Horizon disaster. The court applied each of the CWA’s…

The Eleventh Circuit denied environmental groups' lawsuit challenging EPA's interim decision not to revoke Alabama's NPDES permitting authority. Alleging 26 program deficiencies,…

A district court granted in part and denied in part cross-motions for summary judgment in a CWA citizen suit alleging a cruise ship terminal and port discharged industrial stormwater runoff and…

In an unpublished opinion, the Eleventh Circuit affirmed a lower court decision dismissing landowners' claims that a city violated the CWA and state law by failing to perform maintenance and…

A district court dismissed a mitigation bank owner's APA claims against the U.S. Army Corps of Engineers for requiring a CWA §404 permittee to purchase "invalid" banking credits…

A district court held that an environmental group may go forward with its CWA and NEPA lawsuit against a water district, the U.S. Army Corps of Engineers, and the owner of the largest federal…

A district court denied oil and gas companies' motions to dismiss claims that their use and handling of methyl tertiary butyl ether (MTBE) has contaminated, or threatens to contaminate,…

The Mississippi Supreme Court reversed and remanded a lower court decision that the state's transportation agency did not effect a categorical or regulatory taking when it pledged…

A district court upheld the U.S. Army Corps of Engineers' decision to issue a general nationwide permit—NWP 21—authorizing discharges from certain coal mining activities into navigable waters…

A district court denied motions to dismiss environmental groups' CWA citizen suit against an energy company for alleged NPDES permit violations at a retired coal-fired power plant. The groups…