Coloma drinking water comes from groundwater wells. Based on the most recent monitoring data, 13 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Radium, and 9 others. PFAS testing has been conducted with no detections. Water hardness is 200 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.
Contaminants detected in Coloma water
13 total
Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.
Coloma tap water meets EPA legal standards (Maximum Contaminant Levels). However, 2 contaminants are present above independent health guidelines, which are often stricter than legal limits. 13 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 Coloma water?
Monitoring has detected 13 contaminants in Coloma's water supply: Lead, Nitrate, Copper, Radium, Uranium, Gross Alpha Radiation, Total Trihalomethanes, Haloacetic Acids (HAA5), Atrazine, Nickel, Chromium (total), Barium, Deethylatrazine. 2 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Coloma water have PFAS?
Coloma's water has been tested for PFAS compounds with no detections. Testing was conducted as part of the EPA's Unregulated Contaminant Monitoring Rule (UCMR5) program.
Is Coloma water hard?
Yes. Coloma water has a hardness of 200 mg/L (very 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 Coloma get its drinking water?
Coloma'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. Coloma is served by one water system: COLOMA WATERWORKS.
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