§611.741. Standards for Filtration

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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)

                    
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