S.D. Codified Laws § 9-48-31
Nothing contained in §§ 9-48-26 to 9-48-29, inclusive, shall be construed to limit or restrict the power of municipalities to establish, equip, maintain, operate, extend, or improve water and sewer systems or combined water and sewer systems in the manner provided in chapter 9-40, and any statutes heretofore or hereafter enacted amendatory thereof and supplemental thereof, and to fix, impose, and collect rents and charges for the service of such utility systems, and to issue revenue bonds and make the same payable from the revenues provided by such rates and charges, and to provide lawful stipulations and covenants for the security of such bonds. The procedural requirements in chapter 9-40 shall constitute the only conditions prerequisite to the carrying out of such undertakings, the issuance of such bonds and the fixing and collection of such rates and charges. The moneys derived from such rates and charges may be used and accounted for in accordance with the provisions of chapter 9-40, and are not subject to the limitations of §§ 9-48-26 to 9-48-29, inclusive.
SDCL 9-48-31