Water Quality Report
Blue Mounds, WI
Dane County · 950 residents · 1 water system
14
Contaminants detected
0
PFAS compounds
—
Hardness (mg/L)
0
Above legal limits
3
Above health guidelines
Blue Mounds 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.
Contaminants detected in Blue Mounds water
Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.
Lead0.00091 / 0.015 mg/L
6% of EPA limit
Nitrate1 / 10 mg/L
10% of EPA limit
Arsenic0.002 / 0.01 mg/L
20% of EPA limit
Copper144 / 1300 ug/L
11% of EPA limit
Radium5 / 5 pCi/L
100% of EPA limit
Uranium1.2 / 30 ug/L
4% of EPA limit
Gross Alpha Radiation1.4 / 15 pCi/L
9% of EPA limit
Total Trihalomethanes6.2 / 80 ug/L
8% of EPA limit
Haloacetic Acids (HAA5)0.68 / 60 ug/L
1% of EPA limit
Nickel0.0104 mg/L
UnregulatedInorganic
Barium0.0431 / 2 mg/L
2% of EPA limit
Toluene0.5 / 1000 ug/L
0% of EPA limit
Chromium (total)0.0012 / 0.1 mg/L
1% of EPA limit
Fluoride0.13 / 4 mg/L
3% of EPA limit
PFAS (tested — none detected)
Microplastics (not routinely tested)
Water systems serving Blue Mounds
Other cities in Dane County
Water quality reports for nearby Wisconsin communities.
Frequently asked questions
Is Blue Mounds, WI tap water safe to drink?
Blue Mounds 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. 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 Blue Mounds water?
Monitoring has detected 14 contaminants in Blue Mounds's water supply: Lead, Nitrate, Arsenic, Copper, Radium, Uranium, Gross Alpha Radiation, Total Trihalomethanes, Haloacetic Acids (HAA5), Nickel, Barium, Toluene, Chromium (total), Fluoride. 3 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Blue Mounds water have PFAS?
Blue Mounds'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 Blue Mounds get its drinking water?
Blue Mounds'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. Blue Mounds is served by one water system: BLUE MOUNDS WATERWORKS.
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