Illinois Administrative Code

Section 306.101 Preamble This Part addresses existing and potential sources of water pollution. (Source: Amended at 47 Ill. Reg. 4641, effective March 23, 2023)

Section 306.102 Systems Reliability a) Malfunctions. All treatment works and associated facilities must be constructed and operated to minimize violations of applicable standards during contingencies including flooding, adverse weather, power failure, equipment failure, or mainte…

Section 306.103 Combined Sewers and Treatment Plant Bypasses (renumbered) (Source: Section 306.103 renumbered to Sections 306.302 through 306.306 at 7 Ill. Reg. 5682, effective April 19, 1983)

Section 306.104 Intake Structures (renumbered) (Source: Section 306.104 renumbered to Section 306.201 at 7 Ill. Reg. 5682, effective April 19, 1983)

Section 306.105 New Connections (renumbered) (Source: Section 306.105 renumbered to Sections 306.401 through 306.406 at 7 Ill. Reg. 5682, effective April 19, 1983) SUBPART B: INTAKE STRUCTURES

Section 306.201 Intake Structures New water intake structures on waters designated for general use, whose construction begins after the effective date of this Chapter, must be designed to minimize harm to fish and other aquatic organisms. (Source: Amended at 47 Ill. Reg. 4641, ef…

Section 306.302 Expansion of Combined Sewers Expanding existing or establishing new combined sewer service areas is prohibited, except when the Agency has determined from the permit application the following: a) The combined sewer service area has adequate treatment or retention …

Section 306.303 Excess Infiltration Excess infiltration into sewers must be eliminated, and the maximum practicable flow must be conveyed to treatment facilities. (Source: Amended at 47 Ill. Reg. 4641, effective March 23, 2023)

Section 306.304 Overflows Overflows from sanitary sewers are prohibited. (Source: Amended at 47 Ill. Reg. 4641, effective March 23, 2023)

Section 306.305 Treatment of Overflows and Bypasses All combined sewer overflows and treatment plant bypasses must be given sufficient treatment to prevent pollution or the violation of applicable water quality standards unless an exception has been granted by the Board. Sufficie…

Section 306.306 Compliance Dates Compliance with Section 306.305 must be achieved on or before the following dates: a) All treatment plant bypasses, by the applicable date for improvement of treatment works under 35 Ill. Adm. Code 304. b) All combined sewer overflows within the M…

Section 306.350 Preamble (Repealed) (Source: Repealed at 47 Ill. Reg. 4641, effective March 23, 2023)

Section 306.351 Notification and Submittals by Discharger (Repealed) (Source: Repealed at 47 Ill. Reg. 4641, effective March 23, 2023)

Section 306.352 Notification by Agency (Repealed) (Source: Repealed at 47 Ill. Reg. 4641, effective March 23, 2023)

Section 306.360 Joint or Single Petition for Exception (Repealed) (Source: Repealed at 47 Ill. Reg. 4641, effective March 23, 2023)

Section 306.361 Justification of Joint Petition (Repealed) (Source: Repealed at 47 Ill. Reg. 4641, effective March 23, 2023)

Section 306.362 Justification of Single Petition (Repealed) (Source: Repealed at 47 Ill. Reg. 4641, effective March 23, 2023)

Section 306.363 Contents of Joint Petition (Repealed) (Source: Repealed at 47 Ill. Reg. 4641, effective March 23, 2023)

Section 306.364 Contents of Single Petition (Repealed) (Source: Repealed at 47 Ill. Reg. 4641, effective March 23, 2023)

Section 306.370 Notice and Hearing (Repealed) (Source: Repealed at 47 Ill. Reg. 4641, effective March 23, 2023)

Section 306.371 Opinion and Order (Repealed) (Source: Repealed at 47 Ill. Reg. 4641, effective March 23, 2023)

Section 306.372 Transcripts (Repealed) (Source: Repealed at 47 Ill. Reg. 4641, effective March 23, 2023)

Section 306.373 Final Date for Petitions (Repealed) (Source: Repealed at 47 Ill. Reg. 4641, effective March 23, 2023)

Section 306.374 Other Proceedings (Repealed) (Source: Repealed at 47 Ill. Reg. 4641, effective March 23, 2023) SUBPART E: NEW CONNECTIONS

Section 306.401 Publication of Lists a) The Agency must publish and make available to the public at intervals of not more than three months a comprehensive and up-to-date list of sanitary districts and other wastewater treatment or transportation authorities then subject to restr…

Section 306.402 Restricted Status a) Restricted status means the Agency's determination that a sewer has reached hydraulic capacity or a sewage treatment plant has reached design capacity and, as a result, additional sewer connection permits may no longer be issued without causin…

Section 306.403 Critical Review a) Critical review means the Agency's determination that a sewer is approaching hydraulic capacity or a sewage treatment plant is approaching design capacity and, as a result, additional sewer connection permit applications will require close scrut…

Section 306.404 Notification of Individuals Requesting Connections Sanitary districts or other wastewater treatment or transportation authorities responsible for authorizing new sewer connections that have been placed on restricted status or critical review by the Agency must not…

Section 306.405 Notification of Restricted Status or Critical Review The Agency must notify the sanitary district or other wastewater treatment or transportation authority of its determination of restricted status or critical review, or refusal to terminate the same, and must giv…

Section 306.406 Appeal Any sanitary district or other wastewater treatment or transportation authority responsible for authorizing new sewer connections may petition, under Section 5(d) of the Act and 35 Ill. Adm. Code 105, for a hearing before the Board to contest the decision o…

Section 306.407 Effective Date (Repealed) (Source: Repealed at 47 Ill. Reg. 4641, effective March 23, 2023) SUBPART F: SITE SPECIFIC RULES AND EXCEPTIONS

Section 306.501 East St. Louis-Sauget Site-Specific Discharges a) The discharge from the sewer system of the City of East St. Louis, as described below, is not subject to the treatment requirements and timetables of Sections 306.305(b) and 306.306. The discharge is located in one…

Section 306.502 Alton Combined Sewer Overflow Discharges a) The discharge from the Piasa-State Street Sewer at Mississippi River mile 202.64 is not subject to 35 Ill. Adm. Code 304.106, 304.120, 304.121 and 304.124 during the following conditions: 1) Before replacement of the exi…

Section 306.503 Havana Site-Specific Discharges The two discharges from the combined sewer system of the City of Havana, as described below, are not subject to the treatment requirements of Section 306.305(a) or the compliance date of Section 306.306(c). The Washington Street dis…

Section 306.APPENDIX A References to Previous Rules (Repealed) (Source: Repealed at 47 Ill. Reg. 4641, effective March 23, 2023)

Section 307.1001 Preamble a) This Part places certain restrictions on the types, concentrations, and quantities of contaminants that can be discharged into sewer systems in the State. 1) Subpart B includes standards for the discharge of contaminants to sewer systems. These apply …

Section 307.1002 Definitions a) The definitions of 35 Ill. Adm. Code 301 do not apply to this Part. b) The definitions of 35 Ill. Adm. Code 310 apply to this Part. (Source: Added at 12 Ill. Reg. 2592, effective January 13, 1988)

Section 307.1003 Test Procedures for Measurement The test procedures for measurement prescribed at 40 CFR 136 and incorporated by reference in 35 Ill. Adm. Code 310.107 apply to expressions of pollutant amounts, characteristics, or properties in pretreatment standards in this Par…

Section 307.1005 Toxic Pollutants a) The Board incorporates by reference 40 CFR 401.15 (2005). This incorporation includes no later amendments or editions. b) A "toxic pollutant" is one of the materials listed in 40 CFR 401.15 or in table II or III in appendix D to 40 CFR 122, in…

Section 307.1006 Electronic Reporting The filing of any document under any provision of this Part as an electronic document is subject to 35 Ill. Adm. Code 310.106. BOARD NOTE: Derived from 40 CFR 3, as added, and 40 CFR 403.8(g) (2005), as amended at 70 Fed. Reg. 59848 (Oct. 13,…

Section 307.101 Preamble (Renumbered) (Source: Section 307.101 renumbered to Section 307.1001 at 12 Ill. Reg. 2592, effective January 13, 1988.)

Section 307.102 General Requirements (Renumbered) (Source: Section 307.102 renumbered to Section 307.1101 at 12 Ill. Reg. 2592, effective January 13, 1988)

Section 307.103 Mercury (Renumbered) (Source: Section 307.103 renumbered to Section 307.1102 at 12 Ill. Reg. 2592, effective January 13, 1988)

Section 307.104 Cyanide (STORET number 00720) (Renumbered) (Source: Section 307.104 renumbered to Section 307.1103 at 12 Ill. Reg. 2592, effective January 13, 1988)

Section 307.105 Pretreatment Requirements (Repealed) (Source: Repealed at 12 Ill. Reg. 2592, effective January 13, 1988)

Section 307.1101 General and Specific Requirements No person may introduce the following types of pollutants into a POTW: a) General Requirements 1) Pollutants that pass through the POTW; or 2) Pollutants that interfere with the operation or performance of the POTW. b) Specific R…

Section 307.1102 Mercury a) Except as provided in this Section, no person may cause or allow the concentration of mercury in any discharge to a publicly owned or publicly regulated sewer system to exceed 0.0005 mg/L, subject to the averaging rule contained in 35 Ill. Adm. Code 30…