Cal. Harb. & Nav. Code § 7210

Whenever the board deems if necessary for the district to incur a general obligation bonded indebtedness for (a) the acquisition, construction, completion or repair of any or all improvements, works or property mentioned in this part, or (b) the funding or refunding of any outstanding indebtedness of the district, including premiums, if any be payable, the board shall, by resolution, so declare and call an election to be held in the district for the purpose of submitting to the qualified voters the proposition of incurring indebtedness by the issuance of bonds of the district.