Cal. Wat. Code § 45102
Notwithstanding Section 45100, whenever in any district (1) a report and recommendation as to a project, or a report as to a contract with the United States, has been adopted by the voters at an election held pursuant to Part 5 (commencing with Section 42200) of this division, (2) an assessment to finance the project or the contract has been levied and assessed and remains unpaid in whole or in part, and (3) in the judgment of the board it is for the best interest of the district or the landowners therein to issue bonds for the purpose of obtaining money to pay the costs of the project, all or any part of the outstanding principal of direct assessment warrants heretofore or hereafter issued pursuant to Section 46381 for said project, or charges pursuant to the contract, the board may, by a resolution adopted by a two-thirds vote of its members, authorize the issuance of bonds in an amount not exceeding the amount of the assessment remaining unpaid, without calling or holding any special election pursuant to Section 45100 or Chapter 2 (commencing with Section 45250) of this part.
This section shall apply to all districts, including any district in which a report and recommendation as to a project, or a report as to a contract with the United States, has been adopted at an election held at any time heretofore, and shall apply in the case of any assessment at any time heretofore or hereafter levied and assessed, if the assessment remains unpaid in whole or in part at the time of adoption of the resolution of the board authorizing the issuance of bonds.
Ca. Water Code § 45102