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Wisconsin’s 2012 Impaired Waters ListSix Mile Creek

Every two years, Section 303(d) of the Clean Water Act requires states to publish a list of all waters that are not meeting water quality standards. The existing Impaired Waters List includes more than 700 rivers, streams and lakes. In the 2012 list, updates include 147 new waters to the list. Twenty-eight waters were delisted, including three streams that have been successfully restored: German Valley Branch in Dane County and Eagle and Joos Valley Creeks in Buffalo County.

» Featured water restorations

U.S. EPA Approval of 2012 Impaired Waters

The U.S. Environmental Protection Agency (EPA) fully approved Wisconsin's 2012 Impaired Waters List on June 25, 2014. Provided below are links to the EPA approval documents, a comprehensive alphabetical 2012 Impaired Water List, and the associated geospatial data files for use in Geographic Information Systems (GIS) applications.

Prior to EPA-approval, the 2012 list was vetted extensively by the public during four comment periods. Below are links to documents containing information about each comment period, including responses to public comments.

Contact information
For questions and comments about the Impaired Waters List contact:
Aaron Larson
Last revised: Monday June 08 2015