Clean drinking water is essential to health. We regulate sanitary and well location permits, monitor drinking water quality, and provide water testing services to protect our ground and surface waters, and reduce the spread of disease.
Information on how to get your water tested for bacteria, metals, and other chemicals through our Environmental Health Laboratory.
Sanitary permit, inspection, and maintenance information for private septic systems.
Well location permit information and well water testing testing recommendations for private wells.
Data on the current water quality in Madison and Dane County, including sources of our most common pollutants and ways to improve water quality.