Ecology v Acquavella

The historic Ecology v. James Acquavella, et. al. adjudication, which determines and confirms all surface water rights in the Yakima River Basin, is final. The court entered a final decree on May 9, 2019 at the Yakima County Courthouse. 

Also called the Yakima River Basin adjudication, the case prioritizes about 2,300 water rights in the Yakima Basin including Benton, Kittitas, and Yakima counties, and a small portion of Klickitat County.

The final decree and final schedule of rights

Starting in 1989, the court issued a series of Conditional Final Orders as work was completed in subbasins. Thanks to the patient and meticulous work of Ecology and court staff, as well as countless stakeholders, Superior Court Judge F. James Gavin entered the Final Decree in the case on May 9, 2019. The Final Decree integrates all of the Conditional Final Orders entered in the case, other orders governing administration of the waters of the Yakima Basin, and the Final Schedule of Rights.

Resources and important documents

Frequently Asked Questions