35 Ill. Adm. Code 604.1320
Level Controls
Section 604.1320Â Level Controls
Storage structures must provide:
a)Â Â Â Â Â Â Â Â adequate
controls, including telemetering equipment, to maintain water levels within the
operating range of distribution system storage structures;
b)Â Â Â Â Â Â Â Â level
indicating devices; and
c)Â Â Â Â Â Â Â Â overflow
and low-level warnings or alarms.