Section 611.741  Standards for Filtration

A PWS supplier must apply filtration treatment complying with Subpart B and this Subpart R.

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.

(Source:  Amended at 47 Ill. Reg. 16486, effective November 2, 2023)