Ill. Admin. Code tit. 35, § 604.205 – Surface Water Quantity | Midpage
§ 604.205
Ill. Admin. Code tit. 35, § 604.205
Surface Water Quantity
AUTHORITY: Implementing Section 17 and authorized by Section 27 of the Illinois Environmental Protection Act [415 ILCS 5/17 and 27].POLLUTION CONTROL BOARD
a) be adequate to meet the maximum projected water demand of the service area as shown by calculations based on a one in 50-year drought or the extreme drought of record, and should include consideration of multiple year droughts;
b) provide a 20% surplus unless otherwise approved by the Agency under Section 604.145(b); and
c) be adequate to compensate for all losses, including silting, evaporation, seepage and required water releases.