Antioch drinking water comes from groundwater wells. Based on the most recent monitoring data, 14 contaminants have been detected in the water supply, including Lead, Arsenic, Copper, Total Trihalomethanes, and 10 others. PFAS compounds have been detected at trace levels in Antioch water. Water hardness is 220 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.
Contaminants detected in Antioch water
14 total
Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.
Antioch tap water meets EPA legal standards (Maximum Contaminant Levels). However, 4 contaminants are present above independent health guidelines, which are often stricter than legal limits. 14 contaminants have been detected in the water supply, including Lead, Arsenic, Copper, 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 Antioch water?
Monitoring has detected 14 contaminants in Antioch's water supply: Lead, Arsenic, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5), PFHpA (Perfluoroheptanoic Acid), PFPeA (Perfluoropentanoic Acid), 11CL_PF3OUDS, cis-1,2-Dichloroethylene, Vinyl Chloride, Barium, Fluoride, Lithium, PFBA (Perfluorobutanoic Acid). Additionally, 5 PFAS compounds have been detected at trace levels. 4 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Antioch water have PFAS?
Yes. 5 PFAS compounds have been detected in Antioch'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 Antioch water hard?
Yes. Antioch water has a hardness of 220 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 Antioch get its drinking water?
Antioch'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. Antioch is served by 2 water systems, the largest being ANTIOCH (serving 14,175 people).
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