Sec. 8. The following serve as voting members of the commission:
(1) The three (3) county commissioners from each participating county.
(2) The chairman of a soil and water conservation district for each participating county that:
(A) is subject to IC 14-32;
(B) includes territory in a participating county; and
(C) includes territory in the basin.
(3) The county surveyor of each participating county.