TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 920 WATER WELL CONSTRUCTION CODE
SECTION 920.180 CLOSED LOOP WELLS
Section 920.180 Closed Loop Wells
a) Construction. For each closed loop well, the borehole, containing the heat exchanger piping, shall be grouted from the bottom of the borehole to the bottom of the header-piping trench and, in the case of directional bores, the surface of the ground. The Department will maintain a list of approved closed loop well grouts on its website. Closed loop wells that are constructed in a manner that leaves a casing in the ground shall be grouted in a manner consistent with water wells. Closed loop wells shall not be located closer to water wells and sources of contamination than the minimum separation distances specified in Table C.
(Source: Amended at 37 Ill. Reg. 19676, effective November 25, 2013)