projects created under the Act to generate and sell hydroelectric power, 43 U. S. C. § 522, and the Salt River Project has supported its water operations by this means almost since its creation. The 1902 Act provided that the water users who benefited from the reclamation project had to agree to repay to the United States the costs of constructing the project, and the Salt River Valley Water Users Association was organized as an Arizona corporation in 1903 to serve as the contracting agent for the landowners. The Association's Articles, drafted in cooperation with the Federal Reclamation Service, gave subscribing landowners the right to reclamation water and the power to vote in Association decisions in proportion to the number of acres the subscribers owned. The Articles alsoauthorized acreage-proportionate stock assessments to raise income for the Association, the assessments becoming a lien on the subscribing owners' land until paid. For almost 15 years, the Federal Reclamation Service operated and maintained the project's irrigation system for the landowners; under a 1917 contract with the United States, however, the Association itself took on these tasks, proceeding to manage the project for the next 20 years.
The Association faced serious financial difficulties during the Depression as it built new dams and other works for the project, and it sought a means of borrowing money that would not overly encumber the subscribers' lands. The means seemed to be available in Arizona's Agricultural Improvement District Act of 1922, which authorized the creation of special public water districts within federal reclamation projects.