TITLE 77: PUBLIC HEALTH CHAPTER I: DEPARTMENT OF PUBLIC HEALTH SUBCHAPTER r: WATER AND SEWAGE PART 920 WATER WELL CONSTRUCTION CODE The General Assembly's Illinois Administrative Code database includes only those rulemakings that have been permanently adopted. This menu will point out the Sections on which an emergency rule (valid for a maximum of 150 days, usually until replaced by a permanent rulemaking) exists. The emergency rulemaking is linked through the notation that follows the Section heading in the menu. View Entire Part Section 920.10 Definitions Section 920.15 Incorporated and Referenced Materials Section 920.20 Scope Section 920.30 General Requirements Section 920.40 Design Factors Section 920.50 Location Section 920.60 Drilled Wells in Unconsolidated Formations Section 920.70 Drilled Well Construction in Consolidated Formations Section 920.80 Special Type Wells Section 920.90 Construction Materials and Other Requirements Section 920.100 Finishing and Testing Section 920.110 Non-Compliant Existing Wells Section 920.120 Abandoned Wells Section 920.130 Water Well Permit Requirements Section 920.140 Administrative Hearings Section 920.150 Designation of Agents of the Department Section 920.160 Issuance of Water Well and Closed Loop Well Permits by Units of Local Government or Local Health Departments Section 920.170 Monitoring Wells Section 920.180 Closed Loop Wells Section 920.190 Assurance of Potable Water Supply Section 920.200 Closed Loop Well System Permit Requirements Section 920.210 Examination for Closed Loop Well Contractor Certification and Fees Section 920.220 Closed Loop Contractor Registration, Renewal and Fees Section 920.230 Registered Closed Loop Well Contractor Responsibility Section 920.240 Closed Loop Well Continuing Education Sessions Section 920.250 Approval of Closed Loop Well Third Party Organizations Section 920.ILLUSTRATION A Unconsolidated Formations: Oversized Drill Hole Section 920.ILLUSTRATION B Unconsolidated Formations: Mechanically Driven Casing Section 920.ILLUSTRATION C Gravel Pack Construction Section 920.ILLUSTRATION D Creviced Formations: Earth Cover Less Than 30 Feet Thick Section 920.ILLUSTRATION E Creviced Formations: Earth Mantle Cover Over 30 Feet Thick – Oversized Drill Hole Section 920.ILLUSTRATION F Creviced Formations: Earth Cover Over 30 Feet Thick – Mechanically Driven Casing Section 920.ILLUSTRATION G Bored or Dug Well – Well Not Finished With Buried Slab Section 920.ILLUSTRATION H Bored or Dug Well – Buried Slab Construction Section 920.ILLUSTRATION I Installation of a Driven Well Section 920.ILLUSTRATION J Sealing an Abandoned Well – Extending into a Creviced Formation Section 920.ILLUSTRATION K Sealing an Abandoned Dug or Bored Well Section 920.ILLUSTRATION L Sealing an Abandoned Well Extending into More Than One Water Bearing Formation Section 920.ILLUSTRATION M Sealing an Abandoned Buried Slab Bored Well Section 920.TABLE A Steel Casing and Liner Pipe Weights and Dimensions Section 920.TABLE B Plastic Casing and Liner Pipe Specifications Section 920.Table C Minimal Lateral Distances in Feet Between Water Wells, Closed-Loop Wells, and Sources of Contamination

AUTHORITY: Implementing and authorized by the Illinois Water Well Construction Code [415 ILCS 30].

SOURCE: Adopted September 12, 1973; amended at 2 Ill. Reg. 42, p. 35, effective October 16, 1978; rules repealed, new rules adopted and codified at 7 Ill. Reg. 9633, effective August 1, 1983; amended at 12 Ill. Reg. 2990, effective January 13, 1988; amended at 13 Ill. Reg. 11796, effective July 1, 1989; amended at 14 Ill. Reg. 228, effective January 1, 1990; amended at 14 Ill. Reg. 14871, effective September 1, 1990; amended at 15 Ill. Reg. 18188, effective January 1, 1992; amended at 18 Ill. Reg. 17684, effective November 30, 1994; amended at 22 Ill. Reg. 3973, effective April 1, 1998; amended at 24 Ill. Reg. 11934, effective August 1, 2000; amended at 37 Ill. Reg. 19676, effective November 25, 2013; amended at 39 Ill. Reg. 3992, effective March 2, 2015; amended at 46 Ill. Reg. 15751, effective August 30, 2022.