Clean drinking water is essential to health. We provide water testing services to help you know if you are drinking safe, healthy water. We also permit and inspect private septic systems and well locations to protect our groundwater resources from contamination.

pouring a glass of water

Drinking Water Testing

Get information on how to get your water tested for bacteria, metals, and other chemicals through our Laboratory.

Private Septic Systems

Get information about sanitary permits, inspections, and maintenance for private septic systems.

Private Wells

Get information about well location permits and well water testing recommendations for private wells.

Water Quality

Get data on the current water quality in Madison and Dane County, including sources of our most common pollutants and ways to improve water quality.