Wisconsin's Water Quality Report to Congress
Every two years section 305(b) of the Clean Water Act requires states to publish an overall report on the quality of all surface waters across the state. This report, called the "Integrated Report of Water Quality," is submitted to the EPA on April 1 of every even-numbered year.
Wisconsin's 2022 Report to Congress
Wisconsin's Water Quality Report to Congress 2022 was created based on water quality monitoring and restoration work done from 2019 – 2020. The Water Quality Report to Congress, Water Condition Lists, DNR response to public comments, and public comments on the draft Water Condition Lists were all submitted to the EPA on April 1, 2022. Below are copies of these documents:
- Wisconsin Water Quality Report to Congress 2022
- Wisconsin Water Quality Report to Congress 2022 - Executive Summary
- DNR Response to Public Comments on Draft 2022 Lists
- DNR Public Comments on Draft 2022 Lists
- Appendix A - 2022 Impaired Waters List
- Appendix B - 2022 Restoration Waters List
- Appendix C - 2022 Proposed Listings
- Appendix D - 2022 Proposed Listing Removals
- Appendix E - 2022 Healthy Waters List
- Appendix F - 2024 TMDL Listings
- 2022 Healthy Waters List Map
- 2022 Impaired Waters List Map
- 2022 Restoration Waters List Map
- 2022 Water Condition Lists (Impaired, Restoration, and Healthy Waters Lists spreadsheet)
The EPA approved Wisconsin's submittal on April 27, 2022. Below are copies of the approval documents:
2022 Water Quality Report Key Points
- 82% of evaluated waters are healthy, by waterbody/assessment unit (AU) count (see Figure 3 below).
- 126 listings on 122 waters were added to the Impaired Waters List and Restoration Waters List.
- Top three newly listed pollutants: phosphorus (49%), bacteria (30%), and PFOS (14%).
- 22 listings were removed; 3 TSS listings were removed due to long-term restoration projects.
Historical reports to Congress
No Report to Congress
Earlier reports are not available in digital format. If you would like to a copy of one of these reports, contact Ashley Beranek.