§ 920.10. Definitions

§ 920.15. Incorporated and Referenced Materials

§ 920.20. Scope

§ 920.30. General Requirements

§ 920.40. Design Factors

§ 920.50. Location

§ 920.60. Drilled Wells in Unconsolidated Formations

§ 920.70. Drilled Well Construction in Consolidated Formations

§ 920.80. Special Type Wells

§ 920.90. Construction Materials and Other Requirements

§ 920.100. Finishing and Testing

§ 920.110. Non-Compliant Existing Wells

§ 920.120. Abandoned Wells

§ 920.130. Water Well Permit Requirements

§ 920.140. Administrative Hearings

§ 920.150. Designation of Agents of the Department

§ 920.160. Issuance of Water Well and Closed Loop Well Permits by Units of Local Government or Local Health Departments

§ 920.170. Monitoring Wells

§ 920.180. Closed Loop Wells

§ 920.190. Assurance of Potable Water Supply

§ 920.200. Closed Loop Well System Permit Requirements

§ 920.210. Examination for Closed Loop Well Contractor Certification and Fees

§ 920.220. Closed Loop Contractor Registration, Renewal and Fees

§ 920.230. Registered Closed Loop Well Contractor Responsibility

§ 920.240. Closed Loop Well Continuing Education Sessions

§ 920.250. Approval of Closed Loop Well Third Party Organizations

§ 920.ILLUSTRATION A. Unconsolidated Formations: Oversized Drill Hole

§ 920.ILLUSTRATION B. Unconsolidated Formations: Mechanically Driven Casing

§ 920.ILLUSTRATION C. Gravel Pack Construction

§ 920.ILLUSTRATION D. Creviced Formations: Earth Cover Less Than 30 Feet Thick

§ 920.ILLUSTRATION E. Creviced Formations: Earth Mantle Cover Over 30 Feet Thick – Oversized Drill Hole

§ 920.ILLUSTRATION F. Creviced Formations: Earth Cover Over 30 Feet Thick – Mechanically Driven Casing

§ 920.ILLUSTRATION G. Bored or Dug Well – Well Not Finished With Buried Slab

§ 920.ILLUSTRATION H. Bored or Dug Well – Buried Slab Construction

§ 920.ILLUSTRATION I. Installation of a Driven Well

§ 920.ILLUSTRATION J. Sealing an Abandoned Well – Extending into a Creviced Formation

§ 920.ILLUSTRATION K. Sealing an Abandoned Dug or Bored Well

§ 920.ILLUSTRATION L. Sealing an Abandoned Well Extending into More Than One Water Bearing Formation

§ 920.ILLUSTRATION M. Sealing an Abandoned Buried Slab Bored Well

§ 920.TABLE A. Steel Casing and Liner Pipe Weights and Dimensions

§ 920.TABLE B. Plastic Casing and Liner Pipe Specifications

§ 920.Table C. Minimal Lateral Distances in Feet Between Water Wells, Closed-Loop Wells, and Sources of Contamination

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.