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Water Quality Report

Allenton, WI

Washington County · 860 residents · 1 water system

13

Contaminants detected

0

PFAS compounds

311

Hardness (mg/L)

0

Above legal limits

2

Above health guidelines

Allenton drinking water comes from groundwater wells. Based on the most recent monitoring data, 13 contaminants have been detected in the water supply, including Lead, Arsenic, Copper, Radon, and 9 others. Water hardness is 311 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.

Contaminants detected in Allenton water

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

Lead0.001 / 0.015 mg/L
7% of EPA limit
Arsenic0.0014 / 0.01 mg/L
14% of EPA limit
Copper172 / 1300 ug/L
13% of EPA limit
Radon68.4 pCi/L
UnregulatedRadionuclide
Radium4.5 / 5 pCi/L
89% of EPA limit
Uranium0.0576 / 30 ug/L
0% of EPA limit
Gross Alpha Radiation12.2 / 15 pCi/L
81% of EPA limit
Total Trihalomethanes7.3 / 80 ug/L
9% of EPA limit
Haloacetic Acids (HAA5)1.8 / 60 ug/L
3% of EPA limit
Fluoride0.36 / 4 mg/L
9% of EPA limit
Mercury (inorganic)0.000056 / 0.002 mg/L
3% of EPA limit
Barium0.0288 / 2 mg/L
1% of EPA limit
Gross Beta7 / 50 pCi/L
14% of EPA limit
Microplastics (not routinely tested)

Water systems serving Allenton

ALLENTON SANITARY DISTRICT

860 servedGroundwater13 contaminants2 above guidelines
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Other cities in Washington County

Water quality reports for nearby Wisconsin communities.

ColgateGermantownHartfordJacksonKewaskumSlingerWest Bend

Frequently asked questions

Is Allenton, WI tap water safe to drink?
Allenton 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. 13 contaminants have been detected in the water supply, including Lead, Arsenic, 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 Allenton water?
Monitoring has detected 13 contaminants in Allenton's water supply: Lead, Arsenic, Copper, Radon, Radium, Uranium, Gross Alpha Radiation, Total Trihalomethanes, Haloacetic Acids (HAA5), Fluoride, Mercury (inorganic), Barium, Gross Beta. 2 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Is Allenton water hard?
Yes. Allenton water has a hardness of 311 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 Allenton get its drinking water?
Allenton'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. Allenton is served by one water system: ALLENTON SANITARY DISTRICT.

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