Tomah drinking water comes from groundwater wells. Based on the most recent monitoring data, 20 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Radium, and 16 others. PFAS compounds have been detected at trace levels in Tomah water. Water hardness is 128 mg/L (hard), which is within a typical range for the region.
Contaminants detected in Tomah water
20 total
Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.
Tomah tap water meets EPA legal standards (Maximum Contaminant Levels). However, 1 contaminant is present above independent health guidelines, which are often stricter than legal limits. 20 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Radium, Uranium. View the detailed report for each water system to see specific levels and how they compare to both legal limits and health guidelines.
What contaminants are in Tomah water?
Monitoring has detected 20 contaminants in Tomah's water supply: Lead, Nitrate, Copper, Radium, Uranium, Gross Alpha Radiation, Total Trihalomethanes, Haloacetic Acids (HAA5), Atrazine, Selenium, Styrene, Fluoride, Thallium, Mercury (inorganic), Barium, Bromochloromethane, Acetone, PFHpA (Perfluoroheptanoic Acid), Pfpea, Pfhxa. Additionally, 7 PFAS compounds have been detected at trace levels. 1 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Tomah water have PFAS?
Yes. 7 PFAS compounds have been detected in Tomah's water supply at trace levels. PFAS are sometimes called "forever chemicals" because they do not break down in the environment. The EPA has set Maximum Contaminant Levels for several PFAS compounds. View the detailed report for specific concentrations.
Is Tomah water hard?
Yes. Tomah water has a hardness of 128 mg/L (hard). Hard water is not a health concern but can cause scale buildup in water heaters and appliances, reduce soap effectiveness, and leave mineral deposits. Water softeners or conditioning systems can address hardness.
Where does Tomah get its drinking water?
Tomah's drinking water comes from groundwater wells that draw from underground aquifers. The water is treated and tested according to Wisconsin DNR and EPA requirements before distribution. Tomah is served by one water system: TOMAH WATERWORKS.
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