Water Quality Report
Pepin, WI
Pepin County · 816 residents · 1 water system
13
Contaminants detected
0
PFAS compounds
—
Hardness (mg/L)
0
Above legal limits
3
Above health guidelines
Pepin 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, Arsenic, Copper, and 9 others. PFAS testing has been conducted with no detections.
Contaminants detected in Pepin water
Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.
Lead0.0053 / 0.015 mg/L
36% of EPA limit
Nitrate6.2 / 10 mg/L
62% of EPA limit
Arsenic0.001 / 0.01 mg/L
10% of EPA limit
Copper734 / 1300 ug/L
56% of EPA limit
Radium0.07 / 5 pCi/L
1% of EPA limit
Uranium0.31 / 30 ug/L
1% of EPA limit
Total Trihalomethanes0.62 / 80 ug/L
1% of EPA limit
Haloacetic Acids (HAA5)0.85 / 60 ug/L
1% of EPA limit
Selenium0.001 / 0.05 mg/L
2% of EPA limit
Ethylbenzene0.24 / 700 ug/L
0% of EPA limit
Styrene0.56 / 100 ug/L
1% of EPA limit
Chromium (total)0.0022 / 0.1 mg/L
2% of EPA limit
Fluoride0.05 / 4 mg/L
1% of EPA limit
PFAS (tested — none detected)
Microplastics (not routinely tested)
Water systems serving Pepin
Other cities in Pepin County
Water quality reports for nearby Wisconsin communities.
Frequently asked questions
Is Pepin, WI tap water safe to drink?
Pepin tap water meets EPA legal standards (Maximum Contaminant Levels). However, 3 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, Arsenic, Copper, 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 Pepin water?
Monitoring has detected 13 contaminants in Pepin's water supply: Lead, Nitrate, Arsenic, Copper, Radium, Uranium, Total Trihalomethanes, Haloacetic Acids (HAA5), Selenium, Ethylbenzene, Styrene, Chromium (total), Fluoride. 3 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Pepin water have PFAS?
Pepin'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.
Where does Pepin get its drinking water?
Pepin'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. Pepin is served by one water system: PEPIN WATERWORKS.
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