(a) An issuer’s bonds may be secured, as specified by the resolution or a security agreement, by a pledge of all or part of the revenues of the issuer derived from:
(1) the use or sale of a control facility or disposal system; or
(2) services rendered by a disposal system.
(b) Except as provided by Section 383.026, before a municipality or county issues bonds secured under Subsection (a), the municipality or county must publish notice of its intention to issue the bonds at least once in a newspaper of general circulation within the boundaries of the municipality or county. Not later than 30 days after the date of the publication, not less than 10 percent of the qualified voters of the municipality or county may file a petition with the clerk or secretary of the governing body requesting the governing body to order an election on the issuance of the bonds. On the filing of the petition, the governing body shall order an election to be held in the municipality or county to determine whether the bonds may be issued as indicated in the notice. The governing body shall set the date of the election in accordance with Section 41.001, Election Code. If the majority of voters who vote at the election approve the issuance of the bonds, the governing body may issue the bonds. If a petition is not filed within the period provided by this subsection, the governing body may issue the bonds without an election.

(c) The governing body shall fix and periodically revise payments under a lease or other contract for the use or sale of a control facility so that the payments and other pledged revenue will be sufficient to pay the bonds and interest on the bonds as they mature and become due and to maintain reserve or other funds as provided by the resolution or security agreement. The governing body may direct the investment of money in the funds created by the resolution or security agreement.