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Water Quality Report

Fontana, WI

Walworth County · 1,839 residents · 1 water system

13

Contaminants detected

2

PFAS compounds

—

Hardness (mg/L)

0

Above legal limits

2

Above health guidelines

Fontana 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, Radon, and 9 others. PFAS compounds have been detected at trace levels in Fontana water.

Contaminants detected in Fontana water

Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.

Lead0.0031 / 0.015 mg/L
21% of EPA limit
Nitrate5.2 / 10 mg/L
52% of EPA limit
Copper410 / 1300 ug/L
32% of EPA limit
Radon73.9 pCi/L
UnregulatedRadionuclide
Radium1.2 / 5 pCi/L
23% of EPA limit
Uranium0.007 / 30 ug/L
0% of EPA limit
Total Trihalomethanes3.3 / 80 ug/L
4% of EPA limit
Haloacetic Acids (HAA5)2.5 / 60 ug/L
4% of EPA limit
Nickel0.0021 mg/L
UnregulatedInorganic
Selenium0.0013 / 0.05 mg/L
3% of EPA limit
Barium0.047 / 2 mg/L
2% of EPA limit
Fluoride0.11 / 4 mg/L
3% of EPA limit
Di(2-ethylhexyl) adipate0.42 / 400 ug/L
0% of EPA limit
PFAS (2 compounds detected)
Microplastics (not routinely tested)

Water systems serving Fontana

FONTANA WATER UTILITY

1,839 servedGroundwater13 contaminants2 above guidelines
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Other cities in Walworth County

Water quality reports for nearby Wisconsin communities.

DarienDelavanEast TroyElkhornGenoa CityLake GenevaPell LakeSharonTroy CenterWalworthWhitewaterWilliams Bay

Frequently asked questions

Is Fontana, WI tap water safe to drink?
Fontana 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, Radon, Radium. 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 Fontana water?
Monitoring has detected 13 contaminants in Fontana's water supply: Lead, Nitrate, Copper, Radon, Radium, Uranium, Total Trihalomethanes, Haloacetic Acids (HAA5), Nickel, Selenium, Barium, Fluoride, Di(2-ethylhexyl) adipate. Additionally, 2 PFAS compounds have been detected at trace levels. 2 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Fontana water have PFAS?
Yes. 2 PFAS compounds have been detected in Fontana'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 Fontana get its drinking water?
Fontana'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. Fontana is served by one water system: FONTANA WATER UTILITY.

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