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…

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 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…

A district court held that its preliminary injunction enjoining EPA and the U.S. Army Corps of Engineers from implementing the "waters of the United States" rule only extends to the 13…

A district court dismissed EPA's enforcement action against a developer for filling wetlands in violation of the CWA and ordered the Agency to pay attorney fees the developer incurred…

A district court preliminarily enjoined EPA's and the U.S. Army Corps of Engineers' controversial "waters of the United States" rule. Thirteen states—Alaska, Arizona, Arkansas…

A district court held that it lacked jurisdiction over a coal company's lawsuit challenging EPA's and the U.S. Army Corps of Engineers' controversial "waters of the United…

The Ninth Circuit held that the U.S. Bureau of Reclamation did not violate the CWA by discharging pollutants into the Klamath River without a permit in connection with its management of an…

A district court held that a mining company violated state and federal permits when it discharged high levels of ionic pollution. Environmental groups successfully demonstrated that high…

A California court held that revised "curtailment letters" that the state water board sent to irrigation districts and water appropriators in the Central Valley no longer violate due…