77 Ill. Adm. Code 920.20
Scope
Section 920
Section 920.20Â Scope
This Part provides minimum
standards for the location, construction and modification of water wells,
monitoring wells and closed loop wells that are not otherwise subject to
regulation under the Environmental Protection Act, Title IV, Public Water
Supplies . No water well, monitoring well or closed loop well as defined in
this Part shall be constructed or modified contrary to the provisions of this
Part.