California Code, Water Code - WAT § 53040

When the board has filed an operation and maintenance assessment roll in the office of the county treasurer, and has directed an assessment levied against that roll to be paid in annual installments, it may issue and sell, or otherwise dispose of, time warrants based upon, and in anticipation of, the collection of such assessment levy, to pay the expenses for the payment of which the assessment was levied on a cash basis, or for the purpose of paying any outstanding warrants payable from such assessment levy.The period over which annual installments of the assessment shall be paid shall not exceed five years or the maturity of time warrants issued pursuant to Section 53042.5.