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Water Quality Report

Chilton, WI

Calumet County · 4,191 residents · 1 water system

13

Contaminants detected

0

PFAS compounds

160

Hardness (mg/L)

0

Above legal limits

2

Above health guidelines

Chilton 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 testing has been conducted with no detections. Water hardness is 160 mg/L (hard), which is within a typical range for the region.

Contaminants detected in Chilton water

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

Lead0.013 / 0.015 mg/L
87% of EPA limit
Nitrate4.9 / 10 mg/L
49% of EPA limit
Copper3.7 / 1300 ug/L
0% of EPA limit
Radium0.479 / 5 pCi/L
10% of EPA limit
Uranium1.2 / 30 ug/L
4% of EPA limit
Total Trihalomethanes15.8 / 80 ug/L
20% of EPA limit
5% of EPA limit
Nickel0.0015 mg/L
UnregulatedInorganic
Selenium0.0018 / 0.05 mg/L
4% of EPA limit
Fluoride0.556 / 4 mg/L
14% of EPA limit
Barium0.013 / 2 mg/L
1% of EPA limit
Phosphorus Total480 ug/L
Unregulated
Orthophosphate880 ug/L
Unregulated
PFAS (tested — none detected)
Microplastics (not routinely tested)

Other cities in Calumet County

Water quality reports for nearby Wisconsin communities.

Frequently asked questions

Is Chilton, WI tap water safe to drink?
Chilton 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 Chilton water?
Monitoring has detected 13 contaminants in Chilton's water supply: Lead, Nitrate, Copper, Radium, Uranium, Total Trihalomethanes, Haloacetic Acids (HAA5), Nickel, Selenium, Fluoride, Barium, Phosphorus Total, Orthophosphate. 2 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Chilton water have PFAS?
Chilton's water has been tested for PFAS compounds with no detections. Testing was conducted as part of the EPA's Unregulated Contaminant Monitoring Rule (UCMR5) program.
Is Chilton water hard?
Yes. Chilton water has a hardness of 160 mg/L (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 Chilton get its drinking water?
Chilton'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. Chilton is served by one water system: CHILTON WATERWORKS.

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