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…

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…

A district court upheld EPA's decision to withdraw a proposed rule that would have required concentrated animal feeding operations (CAFOs) to provide information to the Agency to help…

The D.C. Circuit upheld the dismissal of an environmental group's NEPA and CWA claims against the U.S. government in connection with a 593-mile oil pipeline that runs from Illinois to…

The Supreme Court of Ohio held that a regional sewer district has the authority to create and impose fees for a stormwater management program. The applicable statute authorizes the sewer district…