S.D. Codified Laws § 38-8-51.1
Cooperation with political subdivisions in implementing area-wide waste treatment
A conservation district may join together with one or more political subdivisions to plan, consult, and coordinate their efforts to implement area - wide waste treatment under the Federal Water Pollution Control Act Amendments of 1972 (P.L. 92-500) within designated water quality management areas.
Source: SL 1981, ch 282, § 1.