Cooperation with United States government or other

agencies. The board shall have the right and authority to enter into contracts or other arrangements with the United States government or any department thereof; or with the state government of this or other states; or with irrigation, drainage, conservation, conservancy or other improvement districts, in this or other states; or with persons, or public corporations; for cooperation or assistance in making surveys or investigations and reports thereon; in constructing, maintaining, using and operating works of the district, in acquiring, purchasing, extending, operating or maintaining constructed works; water supplies, water systems, irrigation or drainage works, dam and reservoir sites; in building dams to impound flood waters; in conserving and using the said waters for irrigation or other purposes, including the development of hydroelectric energy; in purchasing, leasing or acquiring land or property in adjoining states in order to secure outlets and other needs of the district; and in any other manner furthering the purposes and incidental purposes of districts.