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Water Quality Report

Weston, WI

Marathon County · 16,000 residents · 1 water system

23

Contaminants detected

10

PFAS compounds

210

Hardness (mg/L)

0

Above legal limits

3

Above health guidelines

Weston drinking water comes from groundwater wells. Based on the most recent monitoring data, 23 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Radon, and 19 others. PFAS compounds have been detected at trace levels in Weston water. Water hardness is 210 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.

Contaminants detected in Weston water

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

Lead0.00075 / 0.015 mg/L
5% of EPA limit
Nitrate3.1 / 10 mg/L
31% of EPA limit
Copper82 / 1300 ug/L
6% of EPA limit
Radon412 pCi/L
UnregulatedRadionuclide
Radium1.7 / 5 pCi/L
33% of EPA limit
Uranium0.971 / 30 ug/L
3% of EPA limit
Gross Alpha Radiation0.774 / 15 pCi/L
5% of EPA limit
Total Trihalomethanes23.7 / 80 ug/L
30% of EPA limit
9% of EPA limit
Atrazine0.025 / 3 ug/L
1% of EPA limit
Nickel0.0021 mg/L
UnregulatedInorganic
Barium0.14 / 2 mg/L
7% of EPA limit
Fluoride2.2 / 4 mg/L
55% of EPA limit
PFHpA (Perfluoroheptanoic Acid)1.7 ng/L
UnregulatedPFAS
Nitrite0.085 / 1 mg/L
9% of EPA limit
Pfhps0.663 ng/L
UnregulatedPFAS
PFPeS (Perfluoropentane Sulfonate)1 ng/L
UnregulatedPFAS
6:2 FTS (Fluorotelomer Sulfonate)7 ng/L
UnregulatedPFAS
PFPeA (Perfluoropentanoic Acid)7.5 ng/L
UnregulatedPFAS
Pfpea0.0045 ug/L
Unregulated
Pfhxa0.0036 ug/L
Unregulated
PFBA (Perfluorobutanoic Acid)0.0054 ug/L
UnregulatedPFAS
6:2 FTS0.0052 ug/L
Unregulated
PFAS (10 compounds detected)
Microplastics (not routinely tested)

Other cities in Marathon County

Water quality reports for nearby Wisconsin communities.

Frequently asked questions

Is Weston, WI tap water safe to drink?
Weston 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. 23 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Radon, 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 Weston water?
Monitoring has detected 23 contaminants in Weston's water supply: Lead, Nitrate, Copper, Radon, Radium, Uranium, Gross Alpha Radiation, Total Trihalomethanes, Haloacetic Acids (HAA5), Atrazine, Nickel, Barium, Fluoride, PFHpA (Perfluoroheptanoic Acid), Nitrite, Pfhps, PFPeS (Perfluoropentane Sulfonate), 6:2 FTS (Fluorotelomer Sulfonate), PFPeA (Perfluoropentanoic Acid), Pfpea, Pfhxa, PFBA (Perfluorobutanoic Acid), 6:2 FTS. Additionally, 10 PFAS compounds have been detected at trace levels. 3 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Weston water have PFAS?
Yes. 10 PFAS compounds have been detected in Weston'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.
Is Weston water hard?
Yes. Weston water has a hardness of 210 mg/L (very 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 Weston get its drinking water?
Weston'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. Weston is served by one water system: WESTON MUNICIPAL UTILITIES.

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