ADMINISTRATIVE CODE

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  3. TITLE 35: ENVIRONMENTAL PROTECTION
  4. CHAPTER I: POLLUTION CONTROL BOARD
TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE G: WASTE DISPOSAL
CHAPTER I: POLLUTION CONTROL BOARD
SUBCHAPTER b: PERMITS
PART 704 UIC PERMIT PROGRAM
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SUBPART A: GENERAL PROVISIONS

Section 704.101 Content
Section 704.102 Scope of the Permit or Rule Requirement
Section 704.103 Identification of Aquifers
Section 704.104 Exempted Aquifers
Section 704.105 Specific Inclusions and Exclusions
Section 704.106 Classification of Injection Wells
Section 704.107 Definitions
Section 704.108 Electronic Reporting

SUBPART B: PROHIBITIONS

Section 704.121 Prohibition Against Unauthorized Injection
Section 704.122 Prohibition Against Movement of Fluid into USDW
Section 704.123 Identification of USDWs and Exempted Aquifers
Section 704.124 Prohibition Against Class IV Injection Wells
Section 704.125 Prohibition Against Non-Experimental Class V Injection Wells for Geologic Sequestration
Section 704.128 Requirements for Class VI Injection Wells
Section 704.129 Transitioning from a Class II Injection Well to a Class VI Injection Well

SUBPART C: AUTHORIZATION OF UNDERGROUND INJECTION BY RULE

Section 704.141 Existing Class I and III Injection Wells
Section 704.142 Prohibitions Against Injection into Wells Authorized by Rule
Section 704.143 Expiration of Authorization
Section 704.144 Requirements
Section 704.145 Existing Class IV Injection Wells
Section 704.146 Class V Injection Wells
Section 704.147 Requiring a Permit
Section 704.148 Inventory Requirements
Section 704.149 Requiring Other Information
Section 704.150 Requirements for Class I and III Injection Wells Authorized by Rule
Section 704.151 RCRA Interim Status for Class I Injection Wells

SUBPART D: APPLICATION FOR PERMIT

Section 704.161 Application for Permit; Authorization by Permit
Section 704.162 Area Permits
Section 704.163 Emergency Permits
Section 704.164 Signatories to Permit Applications

SUBPART E: PERMIT CONDITIONS

Section 704.181 Additional Conditions
Section 704.182 Establishing UIC Permit Conditions
Section 704.183 Construction Requirements
Section 704.184 Corrective Action
Section 704.185 Operation Requirements
Section 704.186 Hazardous Waste Requirements
Section 704.187 Monitoring and Reporting
Section 704.188 Plugging and Abandonment
Section 704.189 Financial Responsibility
Section 704.190 Mechanical Integrity
Section 704.191 Additional Conditions
Section 704.192 Waiver of Requirements by Agency
Section 704.193 Corrective Action
Section 704.194 Maintenance and Submission of Records

SUBPART F: REQUIREMENTS FOR WELLS INJECTING HAZARDOUS WASTE

Section 704.201 Applicability
Section 704.202 Authorization
Section 704.203 Requirements

SUBPART G: FINANCIAL RESPONSIBILITY FOR CLASS I HAZARDOUS WASTE INJECTION WELLS

Section 704.210 Applicability
Section 704.211 Definitions
Section 704.212 Cost Estimate for Plugging and Abandonment
Section 704.213 Financial Assurance for Plugging and Abandonment
Section 704.214 Trust Fund
Section 704.215 Surety Bond Guaranteeing Payment
Section 704.216 Surety Bond Guaranteeing Performance
Section 704.217 Letter of Credit
Section 704.218 Plugging and Abandonment Insurance
Section 704.219 Financial Test and Corporate Guarantee
Section 704.220 Multiple Financial Mechanisms
Section 704.221 Financial Mechanism for Multiple Facilities
Section 704.222 Release of the Owner or Operator
Section 704.230 Incapacity
Section 704.240 Wording of the Instruments

SUBPART H: ISSUED PERMITS

Section 704.260 Transfer
Section 704.261 Modification
Section 704.262 Causes for Modification
Section 704.263 Well Siting
Section 704.264 Minor Modifications

SUBPART I: REQUIREMENTS FOR CLASS V INJECTION WELLS

Section 704.279 General
Section 704.280 Definition of a Class V Injection Well
Section 704.281 Examples of Class V Injection Wells
Section 704.282 Protection of Underground Sources of Drinking Water
Section 704.283 Notification of a Class V Injection Well
Section 704.284 Permit Requirements
Section 704.285 Applicability of the Additional Requirements
Section 704.286 Definitions
Section 704.287 Location in a Groundwater Protection Area or Another Sensitive Area
Section 704.288 Additional Requirements
Section 704.289 Closure of a Class V Injection Well
AUTHORITY: Implementing Sections 7.2, 13, and 22.4 and authorized by Section 27 of the Environmental Protection Act [415 ILCS 5/7.2, 13, 22.4, and 27].
SOURCE: Adopted in R81-32 at 6 Ill. Reg. 12479, effective March 3, 1984; amended in R82-19, at 7 Ill. Reg. 14402, effective March 3, 1984; amended in R83-39, at 55 PCB 319, at 7 Ill. Reg. 17338, effective December 19, 1983; amended in R85-23 at 10 Ill. Reg. 13290, effective July 29, 1986; amended in R87-29 at 12 Ill. Reg. 6687, effective March 28, 1988; amended in R88-2 at 12 Ill. Reg. 13700, effective August 16, 1988; amended in R88-17 at 13 Ill. Reg. 478, effective December 30, 1988; amended in R89-2 at 14 Ill. Reg. 3116, effective February 20, 1990; amended in R94-17 at 18 Ill. Reg. 17641, effective November 23, 1994; amended in R94-5 at 18 Ill. Reg. 18351, effective December 20, 1994; amended in R00-11/R01-1 at 24 Ill. Reg. 18612, effective December 7, 2000; amended in R01-30 at 25 Ill. Reg. 11139, effective August 14, 2001; amended in R06-16/R06-17/R06-18 at 31 Ill. Reg. 605, effective December 20, 2006; amended in R11-14 at 36 Ill. Reg. 1613, effective January 20, 2012; amended in R13-15 at 37 Ill. Reg. 17708, effective October 24, 2013; amended in R17-14/R17-15/R18-12/R18-31 at 42 Ill. Reg. 21095, effective November 19, 2018; amended in R25-23 at 49 Ill. Reg. 12707, effective September 23, 2025.