Skip to content

Water Quality Report

Elkhart Lake, WI

St Croix County · 1,567 residents · 1 water system

8

Contaminants detected

1

PFAS compounds

—

Hardness (mg/L)

0

Above legal limits

1

Above health guidelines

Elkhart Lake drinking water comes from groundwater wells. Based on the most recent monitoring data, 8 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Total Trihalomethanes, and 4 others. PFAS compounds have been detected at trace levels in Elkhart Lake water.

Contaminants detected in Elkhart Lake water

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

Lead0.00054 / 0.015 mg/L
4% of EPA limit
Nitrate0.052 / 10 mg/L
1% of EPA limit
Copper16 / 1300 ug/L
1% of EPA limit
Total Trihalomethanes26.6 / 80 ug/L
33% of EPA limit
Haloacetic Acids (HAA5)13 / 60 ug/L
22% of EPA limit
Nickel0.0018 mg/L
UnregulatedInorganic
Fluoride0.087 / 4 mg/L
2% of EPA limit
Barium0.1 / 2 mg/L
5% of EPA limit
PFAS (1 compounds detected)
Microplastics (not routinely tested)

Water systems serving Elkhart Lake

ELKHART LAKE WATERWORKS

1,567 servedGroundwater8 contaminants1 above guideline
View →

Other cities in St Croix County

Water quality reports for nearby Wisconsin communities.

AdellCascadeCedar GroveGlenbeulahHudsonKohlerOostburgRandom LakeSheboygan FallsWaldo

Frequently asked questions

Is Elkhart Lake, WI tap water safe to drink?
Elkhart Lake 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. 8 contaminants have been detected in the water supply, including Lead, Nitrate, 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 Elkhart Lake water?
Monitoring has detected 8 contaminants in Elkhart Lake's water supply: Lead, Nitrate, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5), Nickel, Fluoride, Barium. Additionally, 1 PFAS compounds have been detected at trace levels. 1 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Elkhart Lake water have PFAS?
Yes. 1 PFAS compounds have been detected in Elkhart Lake'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 Elkhart Lake get its drinking water?
Elkhart Lake'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. Elkhart Lake is served by one water system: ELKHART LAKE WATERWORKS.

Check your water quality

Enter your address for a detailed report specific to your water system.

On a private well? Search your address for nearby groundwater monitoring data.