The Tenth Circuit held that an Oklahoma city and a Texas city that entered into water contracts with one another lack standing to challenge Oklahoma's water appropriation permitting process…

The Tenth Circuit held that Oklahoma statutes that favor in-state water appropriation permit applicants over out-of-state permit applicants do not violate the Commerce Clause. The case arose after…

The Eleventh Circuit held that the U.S. Army Corps of Engineers may allocate storage water in Lake Lanier, a reservoir created in 1956 by the completion of Buford Dam on the Chattahoochee River,…

The Supreme Court of Wisconsin upheld the state environmental agency's decision to issue a permit to a town for a municipal well. Two groups challenged the agency's decision to issue…

A district court held that insurers have no duty to defend or indemnify a city in over two dozen underlying lawsuits alleging that the city delivered contaminated tap water to its residents. The…

The Federal Circuit vacated and remanded a lower court decision dismissing breach of contract, takings, and Klamath River Basin Compact claims brought against the U.S. government by…

The Michigan Supreme Court held that a company's plan to discharge contaminated water from an environmental cleanup site in the Manistee River watershed into a previously unpolluted site…

The court holds that a trial court erred in resolving water right priorities in an overdrafted basin with a "physical solution" that relies on the equitable apportionment doctrine but…

The U.S. Supreme Court holds that a Native American tribe's and U.S. claims to additional water rights from the Colorado River are not precluded by a previous Court decision or by a 1983…

The court holds that the federal government's reallocation of a Native American tribe's excess water supply to a second tribe did not constitute a taking of irrigation districts'…