Ill. Admin. Code tit. 35, § 399.120
a) The amount of the fees to be charged for Commission review under this Part are as follows:
1)........ Submittals involving 10 or fewer acres.................................. $10.00/acre.
2)........ Submittals involving more than 10 acres but less than 20 acres . $100.00.
3)........ Submittals involving 20 acres or more............................... The number of
acres multiplied by
the applicable rate established in
Appendix A.