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Water Quality Report

Marinette, WI

Marinette County · 10,968 residents · 1 water system

11

Contaminants detected

5

PFAS compounds

—

Hardness (mg/L)

0

Above legal limits

1

Above health guidelines

Marinette drinking water comes from surface water. Based on the most recent monitoring data, 11 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Radium, and 7 others. PFAS compounds have been detected at trace levels in Marinette water.

Contaminants detected in Marinette water

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

Lead0.00093 / 0.015 mg/L
6% of EPA limit
Nitrate0.22 / 10 mg/L
2% of EPA limit
Copper240 / 1300 ug/L
18% of EPA limit
Radium0.694 / 5 pCi/L
14% of EPA limit
Uranium0.378 / 30 ug/L
1% of EPA limit
Total Trihalomethanes51.4 / 80 ug/L
64% of EPA limit
Haloacetic Acids (HAA5)21.6 / 60 ug/L
36% of EPA limit
Barium0.013 / 2 mg/L
1% of EPA limit
Fluoride0.61 / 4 mg/L
15% of EPA limit
PFHpA (Perfluoroheptanoic Acid)0.88 ng/L
UnregulatedPFAS
Toc5.6 mg/L
Unregulated
PFAS (5 compounds detected)
Microplastics (not routinely tested)

Water systems serving Marinette

MARINETTE WATERWORKS

10,968 servedSurface water11 contaminants1 above guideline
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Other cities in Marinette County

Water quality reports for nearby Wisconsin communities.

ColemanCrivitzDunbarGoodmanNiagaraPeshtigoPoundWausaukee

Frequently asked questions

Is Marinette, WI tap water safe to drink?
Marinette 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. 11 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Radium, Uranium. 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 Marinette water?
Monitoring has detected 11 contaminants in Marinette's water supply: Lead, Nitrate, Copper, Radium, Uranium, Total Trihalomethanes, Haloacetic Acids (HAA5), Barium, Fluoride, PFHpA (Perfluoroheptanoic Acid), Toc. Additionally, 5 PFAS compounds have been detected at trace levels. 1 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Marinette water have PFAS?
Yes. 5 PFAS compounds have been detected in Marinette'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 Marinette get its drinking water?
Marinette's drinking water comes from surface water sources. The water is treated and tested according to Wisconsin DNR and EPA requirements before distribution. Marinette is served by one water system: MARINETTE WATERWORKS.

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