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Water Quality Report

Genoa City, WI

Walworth County · 2,796 residents · 2 water systems

13

Contaminants detected

2

PFAS compounds

389

Hardness (mg/L)

0

Above legal limits

2

Above health guidelines

Genoa City 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 compounds have been detected at trace levels in Genoa City water. Water hardness is 389 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.

Contaminants detected in Genoa City water

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

Lead0.0046 / 0.015 mg/L
30% of EPA limit
Nitrate0.048 / 10 mg/L
0% of EPA limit
Copper708 / 1300 ug/L
54% of EPA limit
Radium0.955 / 5 pCi/L
19% of EPA limit
Uranium0.22 / 30 ug/L
1% of EPA limit
Gross Alpha Radiation1.2 / 15 pCi/L
8% of EPA limit
4% of EPA limit
13% of EPA limit
Fluoride0.6 / 4 mg/L
15% of EPA limit
Barium1.1 / 2 mg/L
53% of EPA limit
Thallium0.0002 / 0.002 mg/L
10% of EPA limit
Orthophosphate0.285 ug/L
Unregulated
Phosphorus Total0.461 ug/L
Unregulated
PFAS (2 compounds detected)
Microplastics (not routinely tested)

Other cities in Walworth County

Water quality reports for nearby Wisconsin communities.

Frequently asked questions

Is Genoa City, WI tap water safe to drink?
Genoa City 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 Genoa City water?
Monitoring has detected 13 contaminants in Genoa City's water supply: Lead, Nitrate, Copper, Radium, Uranium, Gross Alpha Radiation, Total Trihalomethanes, Haloacetic Acids (HAA5), Fluoride, Barium, Thallium, Orthophosphate, Phosphorus Total. 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 Genoa City water have PFAS?
Yes. 2 PFAS compounds have been detected in Genoa City'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 Genoa City water hard?
Yes. Genoa City water has a hardness of 389 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 Genoa City get its drinking water?
Genoa City'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. Genoa City is served by 2 water systems, the largest being GENOA CITY WATERWORKS (serving 2,766 people).

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