Water Quality Report
Fredonia, WI
Ozaukee County · 2,279 residents · 1 water system
12
Contaminants detected
0
PFAS compounds
—
Hardness (mg/L)
0
Above legal limits
1
Above health guidelines
Fredonia drinking water comes from groundwater wells. Based on the most recent monitoring data, 12 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Copper, and 8 others. PFAS testing has been conducted with no detections.
Contaminants detected in Fredonia water
Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.
Lead0 / 0.015 mg/L
0% of EPA limit
Nitrate0.46 / 10 mg/L
5% of EPA limit
Arsenic0.0038 / 0.01 mg/L
38% of EPA limit
Copper267 / 1300 ug/L
21% of EPA limit
Total Trihalomethanes11.4 / 80 ug/L
14% of EPA limit
Haloacetic Acids (HAA5)2.8 / 60 ug/L
5% of EPA limit
Nickel0.0019 mg/L
UnregulatedInorganic
Xylenes0.53 / 10000 ug/L
0% of EPA limit
Barium0.092 / 2 mg/L
5% of EPA limit
Fluoride0.64 / 4 mg/L
16% of EPA limit
O Chlorotoluene0.33 ug/L
UnregulatedVOC
1_3_5_TRIMETHYLBENZENE0.69 ug/L
UnregulatedVOC
PFAS (tested — none detected)
Microplastics (not routinely tested)
Water systems serving Fredonia
Other cities in Ozaukee County
Water quality reports for nearby Wisconsin communities.
Frequently asked questions
Is Fredonia, WI tap water safe to drink?
Fredonia 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. 12 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Copper, Total Trihalomethanes. 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 Fredonia water?
Monitoring has detected 12 contaminants in Fredonia's water supply: Lead, Nitrate, Arsenic, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5), Nickel, Xylenes, Barium, Fluoride, O Chlorotoluene, 1_3_5_TRIMETHYLBENZENE. 1 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Fredonia water have PFAS?
Fredonia'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 Fredonia get its drinking water?
Fredonia'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. Fredonia is served by one water system: FREDONIA WATERWORKS.
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