Tex. Water Code § 36.180

(a) Bonds or notes secured in whole or in part by taxes may not be issued by the district until authorized by a majority vote of the qualified voters of the district at an election called for that purpose.

(b) The board may order an election, and the order calling the election shall state the nature and the date of the election, the hours during which the polls will be open, the location of the polling places, the amount of bonds or notes to be authorized, and the maximum maturity of the bonds or notes.

(c) At an election to authorize bonds or notes payable wholly from ad valorem taxes, the ballots must be printed to provide for voting for or against the proposition: "The issuance of (bonds or notes) and the levy of taxes for payment of the (bonds or notes)." At any election to authorize bonds or notes payable from both ad valorem taxes and revenues, the ballots must be printed to provide for voting for or against: "The issuance of (bonds or notes) and the pledge of net revenues and the levy of ad valorem taxes adequate to provide for the payment of the (bonds or notes)."

(d) The board shall canvass the returns and declare the results of the election. If a majority of the votes cast at the election favor the issuance of the bonds or notes, the bonds or notes may be issued by the board, but if a majority of the votes cast at the election do not favor issuance of the bonds or notes, the bonds or notes may not be issued.