35 Ill. Adm. Code 604.210
Surface Water Quality
Section 604.210Â Surface Water Quality
a)Â Â Â Â Â Â Â Â For
all surface water, community water supplies must provide conventional
filtration treatment or filtration treatment using technologies approved by the
Agency under 35 Ill. Adm. Code 611.250(d) and disinfection.
b)Â Â Â Â Â Â Â Â For
all groundwater under the direct influence of surface water, community water
supplies must provide filtration treatment using technologies approved by the
Agency under 35 Ill. Adm. Code 611.250 and disinfection.
c)Â Â Â Â Â Â Â Â A
source water assessment under Section 604.315 must be completed, considering
factors, both natural and manmade, that may affect water quality in the water
supply stream, river, lake or reservoir, or groundwater under direct influence
of surface water.