1. 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.

2. b) Well Pits.

   1. 1) No new well pits shall be allowed.

   2. 2) Existing pits will be accepted if the following conditions exist:

      1. 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.
      2. B) A watertight manhole and cover must be provided for the well pit.

   3. 3) Existing pits that are not in compliance with subsection (b)(2) shall:

      1. A) 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
      2. B) 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.

3. c) Pitless Well Adapters.

   1. 1) The installation of a pitless well adapter or a pitless adapter unit shall not be considered modification of a water well.
   2. 2) 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. 3) 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).

(Source: Amended at 46 Ill. Reg. 15751, effective August 30, 2022)