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…
A district court granted in part motions to dismiss an oil company's OPA, Pipeline Safety Act, and Maryland state-law claims against the alleged owners and operators of an underground…
The Sixth Circuit issued a nationwide stay enjoining the "waters of the United States" rule pending the court's determination as to whether it has subject matter jurisdiction to…
A North Carolina appellate court upheld the constitutionality of state legislation that withdrew a city's authority to own and operate its public water system and to instead transfer it to a…
The Second Circuit remanded portions of EPA's 2013 general NPDES permit for ship ballast water, a primary cause of the spread of invasive species from one body of water to another. The…
A district court, on motions for summary judgment, held that a marine fueling, service, and storage facility in Seattle was liable under the CWA for various NPDES general permit violations. The…
A district court denied in part motions to dismiss as time barred Puerto Rico's lawsuit against various oil companies for methyl tertiary butyl ether (MTBE) groundwater contamination. Under…
A district court denied in part and granted in part EPA's motion to dismiss property owners' lawsuit challenging the constitutionality of an EPA compliance order under CWA §309. EPA…