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Water: State, Tribal & Territorial Standards

Repository of Documents: Illinois

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Introduction - Title 35: Environmental Protection, Subtitle C: Pollution, Chapter 1: Pollution Control Board, Part 301 (PDF) (28 pp, 513K)
(Effective May 28, 2013) Document contains statements of authority, policy, and definitions relative to the Illinois water quality standards. Please note that not all provisions are in effect for Clean Water Act purposes. See cover page for more information.
The corresponding provisions that are in effect can be found in Introduction – Title 35: Environmental Protection, Subtitle C: Pollution, Chapter 1: Pollution Control Board, Part 301 (1999) (PDF) (20 pp, 36K) (Effective August 26, 1999)
Water Quality Standards - Title 35: Environmental Protection, Subtitle C: Pollution, Chapter 1: Pollution Control Board, Part 302 (PDF) (177 pp, 603K)
(Effective May 28, 2013) Document contains general provisions of the Illinois water quality standards.
Derived Water Quality Criteria Exit EPA Disclaimer
These water quality criteria are derived from EPA-approved methodologies contained in Illinois' water quality standards at Section 302, Subpart F ("Procedures for Determining Water Quality Criteria"). The criteria themselves are not submitted to EPA for approval but are a numeric expression of Illinois' approved narrative criterion and translator.
Use Designations and Site Specific Water Quality Standards - Title 35: Environmental Protection, Subtitle C: Pollution, Chapter 1: Pollution Control Board, Part 303 (PDF) (25 pp, 242K)
(Effective May 28, 2013) Water use designations and site-specific water quality standards. Please note that not all provisions are in effect for Clean Water Act purposes. See cover page for more information.
The corresponding provisions that are in effect can be found in Use Designations and Site Specific Water Quality Standards – Title 35: Environmental Protection, Subtitle C: Pollution, Chapter 1: Pollution Control Board, Part 303 (2008) (PDF) (16 pp, 89K) (Effective October 30, 2008).
Antidegradation Provisions for Bioaccumulative Chemicals of Concern – Title 35: Environmental Protection, Chapter II: Environmental Protection Agency, Part 352.900
Antidegradation Provisions from Section 352.90.
Effluent Disinfection Exemptions - Title 35: Environmental Protection, Subtitle C: Water Pollution, Chapter 1: Pollution Control Board, Part 378 (PDF) (12 pp, 22K)
Document establishes requirements for determining which National Pollutant Discharge Elimination System permit dischargers may cease effluent disinfection on seasonal or year-round basis.
Illinois Permitting Guidance for Mixing Zones (PDF) (17 pp, 784K)
(March 15, 1993) Note: Illinois has decided not to adopt requirements governing the development of total maximum daily loads for the Great Lakes System consistent with the requirements in Procedure 3 in Appendix F in the Great Lakes Guidance contained at 40 CFR 132. Pursuant to the Great Lakes Guidance, EPA has determined that the federal provisions at 40 CFR 132, Appendix F, Procedure 3 shall apply.
Federal Regulations, 40 CFR 131.41
(Effective December 16, 2004) Federal regulations establishing bacteria criteria for coastal and Great Lakes waters. This regulation is also known as the Beach Rule.
Federal Regulations, 40 CFR 132, Appendix F
(Effective July 1, 2000) Great Lakes Water Quality Initiative Implementation Procedures.

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