All of the territory contained within the boundaries of a county or counties shall be a part of the Soil and Water Conservation District whose territories are located within the county or counties except in Cook County in which case all of the territory north of 22nd Street also known as Cermak Road, shall be a part of the North Cook Soil and Water Conservation District and all of the territory of Cook County that is south of 22nd Street also known as Cermak Road, shall be a part of the Will-South Cook Soil and Water Conservation District. The boundaries for any District consolidated after July 1, 1996 in accordance with Section 26a of this Act shall encompass all territory contained within those Districts so consolidating.
70 ILCS 405/17