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Water Quality Report

St Cloud, WI

Fond du Lac County · 494 residents · 1 water system

14

Contaminants detected

0

PFAS compounds

420

Hardness (mg/L)

0

Above legal limits

4

Above health guidelines

St Cloud drinking water comes from groundwater wells. Based on the most recent monitoring data, 14 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Copper, and 10 others. PFAS testing has been conducted with no detections. Water hardness is 420 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.

Contaminants detected in St Cloud water

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

Lead0.0019 / 0.015 mg/L
13% of EPA limit
Nitrate5.4 / 10 mg/L
54% of EPA limit
Arsenic0.0016 / 0.01 mg/L
16% of EPA limit
Copper410 / 1300 ug/L
32% of EPA limit
Radium0.7843 / 5 pCi/L
16% of EPA limit
Uranium0.531 / 30 ug/L
2% of EPA limit
Total Trihalomethanes6.2 / 80 ug/L
8% of EPA limit
Haloacetic Acids (HAA5)2.4 / 60 ug/L
4% of EPA limit
Atrazine0.0091 / 3 ug/L
0% of EPA limit
Nickel0.0021 mg/L
UnregulatedInorganic
Mercury (inorganic)0.000021 / 0.002 mg/L
1% of EPA limit
Barium0.016 / 2 mg/L
1% of EPA limit
Fluoride0.093 / 4 mg/L
2% of EPA limit
Toluene0.36 / 1000 ug/L
0% of EPA limit
PFAS (tested — none detected)
Microplastics (not routinely tested)

Water systems serving St Cloud

ST CLOUD WATERWORKS

494 servedGroundwater14 contaminants4 above guidelines
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Other cities in Fond du Lac County

Water quality reports for nearby Wisconsin communities.

BrandonCampbellsportFairwaterFond Du LacMt CalvaryNorth Fond Du LacOakfieldRipon

Frequently asked questions

Is St Cloud, WI tap water safe to drink?
St Cloud tap water meets EPA legal standards (Maximum Contaminant Levels). However, 4 contaminants are present above independent health guidelines, which are often stricter than legal limits. 14 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 St Cloud water?
Monitoring has detected 14 contaminants in St Cloud's water supply: Lead, Nitrate, Arsenic, Copper, Radium, Uranium, Total Trihalomethanes, Haloacetic Acids (HAA5), Atrazine, Nickel, Mercury (inorganic), Barium, Fluoride, Toluene. 4 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does St Cloud water have PFAS?
St Cloud'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.
Is St Cloud water hard?
Yes. St Cloud water has a hardness of 420 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 St Cloud get its drinking water?
St Cloud'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. St Cloud is served by one water system: ST CLOUD WATERWORKS.

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