Mo. Rev. Stat. § 204.450
If, after the preparation of a plan for a system of trunk sewers and treatment facilities, the voters of the common sewer district defeat the proposition for the issuance of revenue bonds to fund the construction of the system, the board of trustees may levy and assess upon all real property within the district a special tax at such rate as shall be necessary to pay the cost incurred in the proceedings incorporating the district, the preparation of the plan for the trunk sewer and treatment system, the conduct of the elections in the district and the necessary expenses of the district from the time of its incorporation until the bond election. The special tax shall be levied by the county commission, county commissions, or county legislature and shall be collected and enforced by the same officers and in the same manner as provided for state and county taxes. If the voters of the common sewer district defeat a proposition for the issuance of revenue bonds, successive revenue bond issue elections may be held and the same proposition or different propositions may be submitted to the voters in accordance with section 204.370.
§ 204.450, RSMo