S.D. Codified Laws § 46A-1-10
Upon submission of the statewide water plan to the Governor and the Legislature by the Board of Water and Natural Resources, or prior or subsequent thereto as conditions may warrant, the board shall recommend to the Governor and the Legislature those portions of the statewide water plan, including a list of proposed wild, scenic, or recreational rivers, considered to be necessary for the needs and general welfare of the people of the State of South Dakota with a request that the Legislature establish such recommended water facilities as the State Water Resources Management System, said system to serve as the preferred, priority objectives and guidelines for all efforts to accomplish optimum water resources management in this state. No project in the State Water Resources Management System may also be in the state water facilities plan.
SDCL 46A-1-10