1. Except as otherwise provided in § 30(a) of Article VI of the Missouri Constitution, regardless of being a sewer district pursuant to chapter 204 or this chapter, when the governing bodies of two or more contiguous sewer districts located in any county of the first classification without a charter form of government having not less than one hundred seventy thousand and not more than two hundred thousand inhabitants determine that a consolidated sewer system would better serve the area within their boundaries, the governing bodies shall submit the proposal for a consolidated sewer district to the governing body of such county. The governing body of the county after consultation with the sewer engineer pursuant to section 204.300 and section 249.460 shall by resolution submit the question of creating a consolidated sewer district to all qualified voters residing within each existing district at a municipal or general or special election called for that purpose.

2. The resolution shall set forth the project name for the proposed consolidated sewer district, the general nature of the proposed consolidated sewer district, the estimated cost of the sewer improvements for such consolidated sewer district, the boundaries of the existing districts to be consolidated, the proposed method or methods of assessment, and a statement that the final cost of such sewer improvements assessed against property within the consolidated sewer district and the amount of general obligation bonds issued therefor shall not exceed the estimated cost of such sewer improvements, as stated in such notice, by more than twenty-five percent.