77 Ill. Adm. Code 920.110
Non-Compliant Existing Wells
Section 920
Section 920.110
Non-Compliant
Existing Wells
a)        Well Repair. Wells constructed prior to the adoption of this
Part may not meet the criteria established. When a well is to undergo
modification, reconstruction, or repair, the work shall include those changes
necessary to make the well conform to this Part.
b)Â Â Â Â Â Â Â Â Well Pits.
1)Â Â Â Â Â Â Â Â No new well pits shall be allowed.
2)Â Â Â Â Â Â Â Â Existing pits will be accepted if the following conditions
exist:
A)       The well pit shall be structurally sound and watertight. The casing
shall extend at least twelve (12) inches above the pit or basement floor and
have a well seal to prevent contaminants from entering the well.
B)Â Â Â Â Â Â Â A watertight manhole and cover must be provided for the well
pit.
3)Â Â Â Â Â Â Â Â Existing
pits that are not in compliance with subsection (b)(2) shall:
A)Â Â Â Â Â Â Â Be
eliminated after the installation of a pitless well adapter unit on the water
well casing. The floor or one wall of the pit shall be broken or removed and
the pit filled with earth; or
B)Â Â Â Â Â Â Â Be
used as a tank pit for water storage or as a valve pit for water distribution
provided the pit is not subject to flooding. A pitless well adapter or pitless
adapter unit shall be installed on the water well casing.
c)Â Â Â Â Â Â Â Â Pitless
Well Adapters.
1)Â Â Â Â Â Â Â Â The
installation of a pitless well adapter or a pitless adapter unit shall not be
considered modification of a water well.
2)Â Â Â Â Â Â Â Â The
repair of damaged casing above the pitless adapter shall not be considered
modification of a water well if the installation is in accordance with Section
920.90(c).
3)Â Â Â Â Â Â Â Â When
a buried well seal is removed, the extension of the casing to above ground
shall not be considered modification of a water well if the installation is in
accordance with Section 920.90(c).