Official controls instituted by a board may include specific ordinances, resolutions, orders, regulations, or other such legal controls pertaining to other elements incorporated in a drainage plan, project, or area or establishing standards and procedures to be employed toward drainage management. Any such ordinances, resolutions, regulations, or controls shall embody the basic principle that any rural land which drains onto other rural land has a right to continue such drainage if:
Such provisions do not necessarily apply within municipalities, but if a municipality drains water onto rural lands lying outside the boundaries of the municipality, the municipality is subject to the above provisions, if adopted by the board.
SDCL 46A-10A-20