Water Quality Report
Darlington, WI
Lafayette County · 2,235 residents · 1 water system
8
Contaminants detected
0
PFAS compounds
—
Hardness (mg/L)
0
Above legal limits
1
Above health guidelines
Darlington 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.
Contaminants detected in Darlington water
Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.
Lead0.00099 / 0.015 mg/L
7% of EPA limit
Nitrate0.87 / 10 mg/L
9% of EPA limit
Copper180 / 1300 ug/L
14% of EPA limit
Total Trihalomethanes2.9 / 80 ug/L
4% of EPA limit
Haloacetic Acids (HAA5)0.97 / 60 ug/L
2% of EPA limit
Fluoride0.72 / 4 mg/L
18% of EPA limit
Chloromethane1 ug/L
UnregulatedVOC
Barium0.049 / 2 mg/L
2% of EPA limit
Microplastics (not routinely tested)
Water systems serving Darlington
Other cities in Lafayette County
Water quality reports for nearby Wisconsin communities.
Frequently asked questions
Is Darlington, WI tap water safe to drink?
Darlington 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 Darlington water?
Monitoring has detected 8 contaminants in Darlington's water supply: Lead, Nitrate, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5), Fluoride, Chloromethane, Barium. 1 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Where does Darlington get its drinking water?
Darlington'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. Darlington is served by one water system: DARLINGTON WATERWORKS.
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