Madison Water Utility’s testing team conducts more than a
thousand tests every month to continuously monitor quality and
safety. Our water more than meets strict Federal and State
drinking water standards and complies with the Safe Drinking
Water Act. What we test for Simple chemicals, minerals and
radionuclides Solvents, cleaners, pesticides and other man-made
contaminants You can find a detailed report on our water quality
monitoring process here. Chlorine is used in very small amounts
to destroy harmful water-borne viruses, bacteria and microbes.
Water utility facilities The City of Madison drinking water
system consists of 22 active wells, 30 reservoirs (including
five elevated water towers), and approximately 840 miles of
interconnected water transmission and distribution mains. The
Water Utility pumps ground water from a deep sandstone aquifer.
Wells are 500-1100 feet deep and deliver water to localized
regions of the city. Distribution Sample Locations Types and
Frequency of Testing (PDF) Pharmaceutica