A PWS supplier must apply filtration treatment complying with Subpart B and this Subpart R.
Ill. Admin. Code tit. 35, § 611.741
Amended at 27 Ill. Reg. 16447, effective October 10, 2003
BOARD NOTE: This Section originally derived from 40 CFR 141.171. The Board removed provisions for unfiltered system suppliers. A supplier in Illinois using a surface water source or groundwater under the direct influence of surface water must apply filtration treatment and disinfection to water it provides to the public.