35 Ill. Adm. Code 174.310
Operating Permits
Section 174
Section 174.310 Operating
Permits
Public water supplies which have
been delegated construction permit authority by this Agency may also issue
operating permits for new construction provided the following requirements are
met:
a) The newly installed water main is flushed to remove foreign
material introduced into the water main during construction and chlorinated for
disinfection purposes;
b) Bacteriological analyses are performed on a sufficient number
of representative water samples collected from the newly constructed water main
to demonstrate statisfactory disinfection; and
c) The water main is not placed into operation until such time as
the bacteriological analyses required in Subsection (b) indicates that the
water is safe for drinking.