In the ordinance for the issuance of bonds the governing body shall provide that the revenues derived from the operation of the works shall be used only for:
(a) The payment or providing for payment, including payments into any reserve or sinking funds, as the same falls due, of the principal of and the interest on the bonds;(b) The management, maintenance, operation and repair costs of the works.After provision has been made for the payment of the foregoing, any surplus remaining may be used as follows:
(a) for the purchase in the open market of the outstanding unmatured bonds of the district;(b) for extensions, or for the enlargement, replacement or betterment of the works; (c) for any lawful purpose of the district.Ca. Health and Saf. Code § 5029
Amended by Stats. 1963, Ch. 1659.