Cal. Water Code § 72062

Whenever the board deems it necessary for the district to incur a bonded indebtedness for the acquisition, construction, completion, or repair of any or all improvements, works, or property mentioned in this division, the board shall, by resolution, so declare and call an election to be held in the district for the purpose of submitting to the voters thereof the proposition of incurring indebtedness by the issuance of the bonds of the district pursuant to the provisions of this chapter.