The South Central Water Development District is hereby established. The South Central Water Development District includes all of Charles Mix, Brule, Buffalo, Bon Homme, Douglas, and Gregory counties; Patten, Lake, White Lake, Eureka, Gales, Crystal Lake, Washington, Center, and Truro townships in Aurora County; and the portion of Lyman County south of the White River.
SDCL 46A-3A-5