Representative Projects, Water and Irrigation

General Adjudication of all Rights to Use Water in the Gila River System and Source, Case nos. W-1, W-2, W-3, W-4 (Consolidated) and Contested Case No. W1-203 in the Superior Court of Arizona, Maricopa County.

The purpose of this large and complex litigation was to apportion water rights on the Gila River system in Central and Eastern Arizona taking account of both prior appropriation and reserved water claims. Numerous governmental and private entities were involved in the case, including the Salt River Project (the major supplier of water and electricity to Phoenix and surrounding areas), the federal government, the Gila River Pima and Maricopa Indian Community, and other Indian communities, municipalities, and irrigation districts.

Morgan, Angel & Associates prepared an extensive report describing land and water use on the Gila River Indian Reservation from prehistoric times to the late twentieth century. The report also addresses the history of reservation expansion, past court decisions and agreements affecting water allocation from the Gila and its tributaries, underground water development, hydroelectric development and contracts for power delivery, and other natural resources and development issues.

Irrigation, Drainage, and the Isleta Indian Pueblo, 2003:

This report reviewed U.S. Army Corps of Engineers (ACOE) and Bureau of Reclamation (BOR) projects that affected the Middle Rio Grande Conservancy District in New Mexico.

Water Diversion for National Defense: The Phelps-Dodge Settlement with the San Carlos Irrigation Project:

The report on the Phelps-Dodge settlement addressed water diversions from the San Carlos Irrigation Project during and immediately after World War II to support wartime copper mining efforts.

Rivers with a Past: Trade and Commerce on Portions of the Tittabawassee and Kawkawlin River Systems:

The report was for the case of United States v. John Rapanos, 547 US 715 (2006), and reviewed 18th and 19th century commercial uses of the rivers in question.

Back to Water and Irrigation