Water Quality Report
Merrillan, WI
Jackson County · 591 residents · 2 water systems
13
Contaminants detected
0
PFAS compounds
—
Hardness (mg/L)
0
Above legal limits
1
Above health guidelines
Merrillan drinking water comes from groundwater wells. Based on the most recent monitoring data, 13 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Radium, and 9 others.
Contaminants detected in Merrillan water
Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.
Lead0 / 0.015 mg/L
0% of EPA limit
Nitrate0.066 / 10 mg/L
1% of EPA limit
Copper175 / 1300 ug/L
13% of EPA limit
Radium1.4 / 5 pCi/L
29% of EPA limit
Gross Alpha Radiation1.3 / 15 pCi/L
9% of EPA limit
Total Trihalomethanes3.6 / 80 ug/L
5% of EPA limit
Haloacetic Acids (HAA5)7.6 / 60 ug/L
13% of EPA limit
Xylenes4.2 / 10000 ug/L
0% of EPA limit
Styrene0.21 / 100 ug/L
0% of EPA limit
Ethylbenzene0.52 / 700 ug/L
0% of EPA limit
Mercury (inorganic)0.0001 / 0.002 mg/L
5% of EPA limit
Barium0.005 / 2 mg/L
0% of EPA limit
Fluoride0.06 / 4 mg/L
2% of EPA limit
Microplastics (not routinely tested)
Other cities in Jackson County
Water quality reports for nearby Wisconsin communities.
Frequently asked questions
Is Merrillan, WI tap water safe to drink?
Merrillan tap water meets EPA legal standards (Maximum Contaminant Levels). However, 1 contaminant is present above independent health guidelines, which are often stricter than legal limits. 13 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Radium, Gross Alpha Radiation. 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 Merrillan water?
Monitoring has detected 13 contaminants in Merrillan's water supply: Lead, Nitrate, Copper, Radium, Gross Alpha Radiation, Total Trihalomethanes, Haloacetic Acids (HAA5), Xylenes, Styrene, Ethylbenzene, Mercury (inorganic), Barium, Fluoride. 1 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Where does Merrillan get its drinking water?
Merrillan'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. Merrillan is served by 2 water systems, the largest being MERRILLAN WATERWORKS (serving 531 people).
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