S.D. Codified Laws § 46-10-1
Current with legislation signed by the governor on or before 3/6/2024
It shall be the duty of the attorney general to bring an action for the general adjudication of the nature, extent, content, scope, and relative priority of the water rights and the rights to use water of all persons, or entities, public or private, on any river system and on all other sources, when in his judgment, or in the judgment of the Water Management Board, the public interests require such action.
SDCL 46-10-1