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Water Quality Report

Port Washington, WI

Ozaukee County · 12,853 residents · 1 water system

18

Contaminants detected

5

PFAS compounds

Hardness (mg/L)

0

Above legal limits

2

Above health guidelines

Port Washington drinking water comes from surface water. Based on the most recent monitoring data, 18 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Radium, and 14 others. PFAS compounds have been detected at trace levels in Port Washington water.

Contaminants detected in Port Washington water

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

Lead0.0059 / 0.015 mg/L
39% of EPA limit
Nitrate0.35 / 10 mg/L
3% of EPA limit
Copper5.2 / 1300 ug/L
0% of EPA limit
Radium0.933 / 5 pCi/L
19% of EPA limit
Uranium0.135 / 30 ug/L
0% of EPA limit
Trichloroethylene0.47 / 5 ug/L
9% of EPA limit
Tetrachloroethylene1.1 / 5 ug/L
22% of EPA limit
Total Trihalomethanes26.9 / 80 ug/L
34% of EPA limit
21% of EPA limit
Atrazine0.026 / 3 ug/L
1% of EPA limit
Nickel0.0013 mg/L
UnregulatedInorganic
Fluoride0.65 / 4 mg/L
16% of EPA limit
Antimony0.00017 / 0.006 mg/L
3% of EPA limit
Barium0.019 / 2 mg/L
1% of EPA limit
Chromium (total)0.00069 / 0.1 mg/L
1% of EPA limit
Metolachlor0.0071 ug/L
UnregulatedVOC
PFHpA (Perfluoroheptanoic Acid)0.99 ng/L
UnregulatedPFAS
Toc2.1 mg/L
Unregulated
PFAS (5 compounds detected)
Microplastics (not routinely tested)

Other cities in Ozaukee County

Water quality reports for nearby Wisconsin communities.

Frequently asked questions

Is Port Washington, WI tap water safe to drink?
Port Washington tap water meets EPA legal standards (Maximum Contaminant Levels). However, 2 contaminants are present above independent health guidelines, which are often stricter than legal limits. 18 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 Port Washington water?
Monitoring has detected 18 contaminants in Port Washington's water supply: Lead, Nitrate, Copper, Radium, Uranium, Trichloroethylene, Tetrachloroethylene, Total Trihalomethanes, Haloacetic Acids (HAA5), Atrazine, Nickel, Fluoride, Antimony, Barium, Chromium (total), Metolachlor, PFHpA (Perfluoroheptanoic Acid), Toc. Additionally, 5 PFAS compounds have been detected at trace levels. 2 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Port Washington water have PFAS?
Yes. 5 PFAS compounds have been detected in Port Washington'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 Port Washington get its drinking water?
Port Washington's drinking water comes from surface water sources. The water is treated and tested according to Wisconsin DNR and EPA requirements before distribution. Port Washington is served by one water system: PORT WASHINGTON WATERWORKS.

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