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Water allocation under federal law

Texas v. New Mexico

The U.S. Supreme Court held that the United States may pursue claims against New Mexico for violating the Rio Grande Compact, which Colorado, New Mexico, and Texas entered into in the 1930s to resolve disputes over water rights. Texas...

Montana v. Wyoming

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 River in violation of the Yellowstone...

Kansas v. Nebraska

The U.S. Supreme Court adopted a Special Master's determination that Nebraska "knowingly failed" to comply with its obligations under a 2002 settlement agreement that resolved an underlying water allocation dispute between Nebraska and...

Tarrant Regional Water District v. Herrmann

The U.S. Supreme Court held that Oklahoma statutes that favor in-state water appropriation permit applicants over out-of-state permit applicants do not violate the Commerce Clause and are not preempted by the Red River Water Compact—an...

Quantitative Settlement Agreement Coordinated Civil Cases

A California court validated a settlement agreement and 11 related agreements concerning the conservation, transfer, and exchange of Colorado River water diverted for beneficial consumptive use among Southern California water agencies....

San Luis & Delta-Mendota Water Authority v. United States

The Ninth Circuit affirmed a lower court decision granting summary judgment in favor of the U.S. government on claims challenging the DOI's accounting of approximately 9,000 acre feet of water released between June 17 and 24, 2004,...

Tarrant Regional Water District v. Herrmann

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 a Texas water district sought permits...

MDL-1824 Tri-State Water Rights Litigation

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, for water supply. A lower court ruled...

Klamath Irrigation District v. United States

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 agricultural landowners and water, drainage, and...