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Water Quality Report

Greendale, WI

Milwaukee County · 14,393 residents · 1 water system

9

Contaminants detected

0

PFAS compounds

—

Hardness (mg/L)

0

Above legal limits

1

Above health guidelines

Greendale drinking water comes from surface water. Based on the most recent monitoring data, 9 contaminants have been detected in the water supply, including Lead, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5), and 5 others. PFAS testing has been conducted with no detections.

Contaminants detected in Greendale water

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

Lead0.00032 / 0.015 mg/L
2% of EPA limit
Copper7.1 / 1300 ug/L
1% of EPA limit
Total Trihalomethanes12 / 80 ug/L
15% of EPA limit
Haloacetic Acids (HAA5)4.1 / 60 ug/L
7% of EPA limit
Xylenes1.6 / 10000 ug/L
0% of EPA limit
Naphthalene1.6 ug/L
UnregulatedVOC
1,4-Dichlorobenzene0.98 / 75 ug/L
1% of EPA limit
Ethylbenzene0.34 / 700 ug/L
0% of EPA limit
Toluene3.1 / 1000 ug/L
0% of EPA limit
PFAS (tested — none detected)
Microplastics (not routinely tested)

Water systems serving Greendale

GREENDALE WATERWORKS

14,393 servedSurface water9 contaminants1 above guideline
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Other cities in Milwaukee County

Water quality reports for nearby Wisconsin communities.

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Frequently asked questions

Is Greendale, WI tap water safe to drink?
Greendale 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. 9 contaminants have been detected in the water supply, including Lead, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5), Xylenes. 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 Greendale water?
Monitoring has detected 9 contaminants in Greendale's water supply: Lead, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5), Xylenes, Naphthalene, 1,4-Dichlorobenzene, Ethylbenzene, Toluene. 1 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Greendale water have PFAS?
Greendale'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 Greendale get its drinking water?
Greendale's drinking water comes from surface water sources. The water is treated and tested according to Wisconsin DNR and EPA requirements before distribution. Greendale is served by one water system: GREENDALE WATERWORKS.

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