Winona County · 32,026 residents · 3 water systems
2
Contaminants detected
1
PFAS compounds
—
Hardness (mg/L)
0
Above legal limits
2
Above health guidelines
Winona drinking water comes from groundwater wells. Based on the most recent monitoring data, 2 contaminants have been detected in the water supply, including Lead, Lithium. PFAS compounds have been detected at trace levels in Winona water.
Contaminants detected in Winona water
2 total
Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.
Winona 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. 2 contaminants have been detected in the water supply, including Lead, Lithium. 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 Winona water?
Monitoring has detected 2 contaminants in Winona's water supply: Lead, Lithium. Additionally, 1 PFAS compounds have been detected at trace levels. 2 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Winona water have PFAS?
Yes. 1 PFAS compounds have been detected in Winona'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 Winona get its drinking water?
Winona'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. Winona is served by 3 water systems, the largest being Winona (serving 27,782 people).
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