Cal. Water Code § 35951

Bonds may be issued for the purposes of acquiring or constructing works for irrigation, domestic, municipal, and industrial water supply, acquiring the necessary property for these works, acquiring funds to fulfill contractual commitments to carry out the powers and purposes of the district contained in contracts with other agencies, including contractual commitments entered into pursuant to Section 35850.5, acquiring all or part of the operating funds for the district (the total amount of such funds so acquired not to exceed at any time an amount equal to the total operating costs of the district for a two-year period as estimated by its board), acquiring any property necessary for the purposes of the district, redeeming any outstanding warrants of the district issued for the acquisition or construction of works of the district and otherwise carrying out the provisions of this division.