35 Ill. Adm. Code 617.140
Recharge Area Road Sign Posting
Section 617
Section 617.140 Recharge
Area Road Sign Posting
Road signs will be posted at the
entrance to and exit from a regulated recharge area after September 1, 2001, as
follows:
a) the Agency must work with the Illinois Department of
Transportation to demarcate any State or interstate road or highway at the perimeter
of a regulated recharge area; and
b) the public water supply, as defined in 415 ILCS 5/3.365, must
demarcate where any major road other than a State or interstate road or highway
enters or exits a regulated recharge area.