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Water Quality Report

Denmark, WI

Brown County · 2,684 residents · 1 water system

8

Contaminants detected

3

PFAS compounds

—

Hardness (mg/L)

1

Above legal limits

2

Above health guidelines

Denmark drinking water comes from surface water. Based on the most recent monitoring data, 8 contaminants have been detected in the water supply, including Lead, Arsenic, Copper, Total Trihalomethanes, and 4 others. PFAS compounds have been detected at trace levels in Denmark water.

Contaminants detected in Denmark water

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

Lead0.00068 / 0.015 mg/L
5% of EPA limit
Arsenic0.0011 / 0.01 mg/L
11% of EPA limit
Copper1.5 / 1.3 mg/L
115% of EPA limit
Total Trihalomethanes26.4 / 80 ug/L
33% of EPA limit
Haloacetic Acids (HAA5)13.2 / 60 ug/L
22% of EPA limit
Nickel0.0011 mg/L
UnregulatedInorganic
Chromium (total)0.0011 / 0.1 mg/L
1% of EPA limit
Barium0.09 / 2 mg/L
5% of EPA limit
PFAS (3 compounds detected)
Microplastics (not routinely tested)

Water systems serving Denmark

DENMARK WATERWORKS

2,684 servedSurface water8 contaminants1 above legal limit2 above guidelines
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Other cities in Brown County

Water quality reports for nearby Wisconsin communities.

AshwaubenonDe PereGreen BayGreenleafHobartNew FrankenOneidaPulaskiSuamicoWrightstown

Frequently asked questions

Is Denmark, WI tap water safe to drink?
Denmark tap water has 1 contaminant currently measured above EPA legal standards (Maximum Contaminant Levels), and 2 above independent health guidelines. 8 contaminants have been detected in the water supply, including Lead, Arsenic, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5). View the detailed report for each water system to see specific levels, how they compare to both legal limits and health guidelines, and what actions to take.
What contaminants are in Denmark water?
Monitoring has detected 8 contaminants in Denmark's water supply: Lead, Arsenic, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5), Nickel, Chromium (total), Barium. Additionally, 3 PFAS compounds have been detected at trace levels. 1 of these are above EPA legal limits. 2 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Denmark water have PFAS?
Yes. 3 PFAS compounds have been detected in Denmark'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.
Where does Denmark get its drinking water?
Denmark's drinking water comes from surface water sources. The water is treated and tested according to Wisconsin DNR and EPA requirements before distribution. Denmark is served by one water system: DENMARK WATERWORKS.

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