Mason City drinking water comes from groundwater wells. Based on the most recent monitoring data, 5 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Total Trihalomethanes, and 1 others.
Contaminants detected in Mason City water
5 total
Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.
Mason City 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. 5 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Total Trihalomethanes, Haloacetic Acids (HAA5). 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 Mason City water?
Monitoring has detected 5 contaminants in Mason City's water supply: Lead, Nitrate, Arsenic, Total Trihalomethanes, Haloacetic Acids (HAA5). 1 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Where does Mason City get its drinking water?
Mason City's drinking water comes from groundwater wells that draw from underground aquifers. The water is treated and tested according to Illinois EPA and EPA requirements before distribution. Mason City is served by one water system: MASON CITY.
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