Impaired Waters listings reflect those waters that have been evaluated and determined that they are not meeting state water quality standards. This data is stored and managed in the Water Assessment, Tracking and Electronic Reporting System.
WDNR Bureau of Water Quality (2017). 303(d) Impaired Lakes - Listed [Wisconsin--Dane County]. Capital Area Open Data Portal. https://data-carpc.opendata.arcgis.com/datasets/wi-dnr::303d-impaired-lakes-listed (web service)