WAT § 35851

A district may for a valuable consideration enter into any contract with the United States, the State, or any department or agency of either, or with any distribution district or improvement district formed within its boundaries, or with any political subdivision of the State, including irrigation and reclamation districts, as the board deems proper, advisable, or in the interest of the district for any one or more of the following purposes:

(a) For the storage, regulation, control, development, and distribution of water for the irrigation of land.

(b) For the use, control, and distribution of drainage water within the district.

(c) For the construction, extension, operation, control, maintenance, and management of any works or other property constructed or acquired by the district, or over which it may have control, or which may be used or useful for the irrigation or drainage of land or for providing hydroelectric power.