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Water Quality Report

Menomonee Falls, WI

Waukesha County · 25,663 residents · 2 water systems

4

Contaminants detected

0

PFAS compounds

300

Hardness (mg/L)

0

Above legal limits

5

Above health guidelines

Menomonee Falls drinking water comes from a mix of groundwater and surface water sources. Based on the most recent monitoring data, 4 contaminants have been detected in the water supply, including Lead, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5). PFAS testing has been conducted with no detections. Water hardness is 300 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.

Contaminants detected in Menomonee Falls water

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

Lead0.0021 / 0.015 mg/L
14% of EPA limit
Copper19 / 1300 ug/L
1% of EPA limit
10% of EPA limit
6% of EPA limit
PFAS (tested — none detected)
Microplastics (not routinely tested)

Other cities in Waukesha County

Water quality reports for nearby Wisconsin communities.

Frequently asked questions

Is Menomonee Falls, WI tap water safe to drink?
Menomonee Falls tap water meets EPA legal standards (Maximum Contaminant Levels). However, 5 contaminants are present above independent health guidelines, which are often stricter than legal limits. 4 contaminants have been detected in the water supply, including Lead, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5). 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 Menomonee Falls water?
Monitoring has detected 4 contaminants in Menomonee Falls's water supply: Lead, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5). 5 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Menomonee Falls water have PFAS?
Menomonee Falls'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.
Is Menomonee Falls water hard?
Yes. Menomonee Falls water has a hardness of 300 mg/L (very hard). Hard water is not a health concern but can cause scale buildup in water heaters and appliances, reduce soap effectiveness, and leave mineral deposits. Water softeners or conditioning systems can address hardness.
Where does Menomonee Falls get its drinking water?
Menomonee Falls's drinking water comes from a combination of groundwater and surface water sources. The water is treated and tested according to Wisconsin DNR and EPA requirements before distribution. Menomonee Falls is served by 2 water systems, the largest being MENOMONEE FALLS WW - SURFACE WATER (serving 23,867 people).

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