35 Ill. Adm. Code 604.1455
Water Service Line
Section 604.1455Â Water Service Line
a)Â Â Â Â Â Â Â Â A
community water supply must not supply water through a water service line to
more than a single property, dwelling or rental unit.
b)Â Â Â Â Â Â Â Â If a
pipe from the water main or source of potable water supply is accessible to
more than one property, dwelling or rental unit, the pipe will be considered a
water main subject to all permitting requirements of 35 Ill. Adm. Code 602.
c)Â Â Â Â Â Â Â Â A
pipe is accessible when it crosses the property boundary of another landowner
to reach the property, dwelling or rental unit being served.