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…

The D.C. Circuit denied an environmental group's petition for review challenging FERC's decision to issue a natural gas pipeline operator a certificate of public convenience and…

A California court denied an environmental group's motion to preliminarily enjoin emergency regulations governing the underground injection of wastewater produced by oil drilling. The…

A California court issued a temporary restraining order preventing the state water board from enforcing "curtailment letters" it sent to four irrigation districts in the Central Valley.…