The U.S. Supreme Court, in an unsigned judgment and decree, ordered Wyoming to pay Montana $20,340 in damages, plus $67,270.87 in costs, for reducing the amount of water available in the Tongue…

The Ninth Circuit upheld a lower court's dismissal of a tribe's NEPA challenge to a DOI guidance that did not consider its interest when allocating the water rights of the Colorado River…

The D.C. Circuit held that the federal government is not required to reveal the location of water wells under an exemption to FOIA. A environmental group dedicated to protecting the Northern…

A district court granted defendant's motion for summary judgment in a case involving a city utility's suit against an upstream drainage district over excess nitrate pollution in the…

The Supreme Court of California held that the state may enter and conduct environmental and geological studies and testing on more than 150 privately owned properties in the Sacramento-San Joaquin…

The Ninth Circuit held that Washington state's management of barrier culverts, which allow streams to flow underneath roads, violated various Native American treaties from the 1850s and…

The Texas Supreme Court held that the common-law "accommodation doctrine," which gives an oil-and-gas lessee an implied right to use the land as reasonably necessary to produce and…

The Ninth Circuit, in an unpublished opinion, affirmed in part and reversed in part a lower court decision dismissing fishermen's NEPA claims against the Bureau of Reclamation in connection…

The Washington Supreme Court held that a local initiative to create a "Community Bill of Rights" which, among other things, would give the Spokane River its own water rights, including…

The Pennsylvania Supreme Court held that a natural gas company charged with violating the state's Clean Streams Law may seek preenforcement judicial review of the state environmental agency…