Water Quality Report
Lake Zurich, IL
19,867 residents · 3 water systems
4
Contaminants detected
3
PFAS compounds
—
Hardness (mg/L)
0
Above legal limits
2
Above health guidelines
Lake Zurich drinking water comes from groundwater wells. Based on the most recent monitoring data, 4 contaminants have been detected in the water supply, including Lead, Lithium, Pfpea, Pfhxa. PFAS compounds have been detected at trace levels in Lake Zurich water.
Contaminants detected in Lake Zurich water
Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.
Lead0.0069 / 0.015 mg/L
46% of EPA limit
Lithium21.4 ug/L
Unregulated
Pfpea0.0035 ug/L
Unregulated
Pfhxa0.0035 ug/L
Unregulated
PFAS (3 compounds detected)
Microplastics (not routinely tested)
Frequently asked questions
Is Lake Zurich, IL tap water safe to drink?
Lake Zurich 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. 4 contaminants have been detected in the water supply, including Lead, Lithium, Pfpea, Pfhxa. 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 Lake Zurich water?
Monitoring has detected 4 contaminants in Lake Zurich's water supply: Lead, Lithium, Pfpea, Pfhxa. Additionally, 3 PFAS compounds have been detected at trace levels. 2 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Lake Zurich water have PFAS?
Yes. 3 PFAS compounds have been detected in Lake Zurich'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.
Where does Lake Zurich get its drinking water?
Lake Zurich'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. Lake Zurich is served by 3 water systems, the largest being LAKE ZURICH (serving 19,759 people).
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