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Water Quality Report

Westmont, IL

DuPage County · 25,111 residents · 2 water systems

5

Contaminants detected

0

PFAS compounds

—

Hardness (mg/L)

1

Above legal limits

2

Above health guidelines

Westmont drinking water comes from a mix of groundwater and surface water sources. Based on the most recent monitoring data, 5 contaminants have been detected in the water supply, including Lead, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5), and 1 others. PFAS testing has been conducted with no detections.

Contaminants detected in Westmont water

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

Lead0.0089 / 0.015 mg/L
59% of EPA limit
Copper13.1 / 1300 ug/L
1% of EPA limit
Total Trihalomethanes30.5 / 80 ug/L
38% of EPA limit
25% of EPA limit
Orthophosphate2210 ug/L
Unregulated
PFAS (tested — none detected)
Microplastics (not routinely tested)

Other cities in DuPage County

Water quality reports for nearby Illinois communities.

Frequently asked questions

Is Westmont, IL tap water safe to drink?
Westmont tap water has 1 contaminant currently measured above EPA legal standards (Maximum Contaminant Levels), and 2 above independent health guidelines. 5 contaminants have been detected in the water supply, including Lead, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5), Orthophosphate. 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 Westmont water?
Monitoring has detected 5 contaminants in Westmont's water supply: Lead, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5), Orthophosphate. 1 of these are above EPA legal limits. 2 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Westmont water have PFAS?
Westmont'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 Westmont get its drinking water?
Westmont's drinking water comes from a combination of groundwater and surface water sources. The water is treated and tested according to Illinois EPA and EPA requirements before distribution. Westmont is served by 2 water systems, the largest being WESTMONT (serving 24,161 people).

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