California Code, Water Code - WAT § 35520.24

Any time after the filing of the assessment roll as provided in Section 35520.19, the board may, by resolution, call for the sale of bonds secured by the assessment.  The form and substance of the bonds and the sale thereof shall be governed by Sections 35520.35 and 35520.36.  The total par value of bonds sold against any benefit assessment shall not exceed the total assessment less any collections against the assessment made prior to the first adoption of a resolution for sale of bonds secured by the assessment.