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State Water Quality Standards
State environmental agencies have the primary responsibility for developing water quality standards and using these standards as they monitor and assess surface waters to determine impairment and to set effluent limits for waste water discharge. Below is a brief description of the Region 5 state water quality standards programs and links to other state WQS information and agencies involved in state water quality.
Illinois
The Water Quality Standards program in Illinois is managed by the Illinois Environmental Protection Agency (IEPA). The Illinois Pollution Control Board is responsible for adopting Illinois' environmental regulations and deciding contested environmental cases. Other State agencies, such as Illinois Department of Natural Resources, Illinois Natural History Survey, and Illinois Department of Public Health, at times work with IEPA on standards issues.
- Illinois Water Quality Standards Information
- Illinois Pollution Control Board
- EPA approved standards (EPA's Water Quality Standards Repository)
- Waterbody and Designated Use Data
Other Information
- Illinois Water Quality Mapping Tool
- Illinois Water Quality Reports
- Illinois Department of Health: Bathing Beaches
- IEPA Citizens' Information Center
Indiana
The Water Quality Standards program in Indiana is managed by the Indiana Department of Environmental Management (IDEM). Other State Agencies, such as the Indiana Department of Natural Resources and the Indiana State Department of Health, at times work with IDEM on WQS issues.
Indiana Water Quality Standards Information
- Indiana Water Quality Standards Information
- IDEM Rules, Statutes & Policies
- EPA Approved Standards (EPA's Water Quality Standards Repository)
- Revised Standard for Sulfate approved November 6, 2008
- Revised Bacteria Standards approved August 22, 2008
- Combined Sewer Overflow (CSO) Rule approved June 9, 2008.
- Waterbody and Designated Use Data
Other Information
Michigan
The Water Quality Standards program in Michigan is managed by the Michigan Department of Environmental Quality (MDEQ). Other State Agencies, such as the Michigan Department of Natural Resources and the Michigan Department of Community Health, at times work with MDEQ on WQS issues.
Michigan Water Quality Standards Information
- MDEQ Water Quality Standards
- EPA Approved Standards (EPA's Water Quality Standards Repository)
Other Information
Michigan Public Beach Information
Minnesota
The Water Quality Standards program in Minnesota is managed by the Minnesota Pollution Control Agency (MPCA). Other State agencies, such as the Minnesota Department of Natural Resources and the Minnesota Department of Health, at times work with the MPCA on WQS issues.
Minnesota Water Quality Standards Information
- Minnesota Water Quality Standards
- EPA Approved Standards (EPA's Water Quality Standards Repository)
- Waterbody and Designated Use Data
Other Information
- Minnesota Water Quality Reports
- Minnesota Environmental Data Access
(Water Quality Data and Conditions) - Minnesota Beaches
Ohio
The Water Quality Standards program in Ohio is managed by the Ohio Environmental Protection Agency (OEPA). Other State agencies such as the Ohio Department of Natural Resources and the Ohio Department of Public Health, as well as other entities such as the Ohio River Valley Water Sanitation Commission (ORSANCO), at times work with OEPA on WQS issues.
Ohio Water Quality Standards Information
- OEPA Water Quality Standards
- New and revised WQS rules under development
- February 23, 2009 - EPA approves revisions to several Ohio designated uses
- February 20, 2009 - EPA responds to Ohio's submitted revisions to their WQS rules
- December 23, 2008 - EPA approves revisions to several Ohio designated uses
- OEPA Rules and Statutes
- EPA Approved Standards (EPA's Water Quality Standards Repository)
- Waterbody and Designated Use Data
Other Information
- Ohio Water Quality Reports
- Ohio River Valley Water Sanitation Commission (ORSANCO)
- The Surface Water Restoration and Protection (SRP) Clearinghouse
- Interactive GIS Maps
Wisconsin
The Water Quality Standards program in Wisconsin is managed by the Wisconsin Department of Natural Resources (WDNR). Other State agencies, such as the Wisconsin Department of Public Health, at times work with WDNR on WQS issues.
Wisconsin Water Quality Standards Information
- WDNR Water Quality Standards
- New and revised WQS rules under development
- EPA Approved Standards (EPA's Water Quality Standards Repository)
- February 5, 2009 - EPA approves mercury variance for Neenah Menasha Sewerage Commission, Wisconsin
- Mercury Wildlife Criterion Variance for the City of Antigo approved December 3, 2008
- Mercury Wildlife Criterion Variance for Watertown approved on August 21, 2008
- Waterbody and Designated Use Data
Other Information