§ 51.05 ACQUISITION OF SEWER MAINS, NEWLY ANNEXED AREA.
   The municipality shall have power, within the discretion of the governing board of the municipality, to purchase, lease with purchase option, lease or otherwise acquire from the owners thereof, or condemn under provision of SDCL § 9-12-1(2), any sewer main or mains laid in, on or under any street or alley or otherwise located in any municipality, district or subdivision outside the corporate limits of the municipality and which subdivision or district shall have been, by annexation proceedings or otherwise, annexed to the municipality.
(SDCL § 9-48-5)