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Tap water quality report

Carpentersville, IL

EPA monitoring detected 18 contaminants across the 1 water supplier serving Carpentersville. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

1
water supplier
37,983
people served
18
contaminants found
Illinois rankings Lead in Illinois PFAS in Illinois

What was found in Carpentersville's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Fluoride
1207 µg/L 30%
of the EPA limit 4000 µg/L
Main supplier: CARPENTERSVILLE · 37,983 people · 2018
1/1 SYR4
Copper
759.4 µg/L 58%
of the EPA limit 1300 µg/L
Main supplier: CARPENTERSVILLE · 37,983 people · 2018
1/1 SYR4
Nitrate
490 µg/L 4.9%
of the EPA limit 10000 µg/L
Main supplier: CARPENTERSVILLE · 37,983 people · 2019
1/1 SYR4
Barium
52.9 µg/L 2.6%
of the EPA limit 2000 µg/L
Main supplier: CARPENTERSVILLE · 37,983 people · 2018
1/1 SYR4
TTHM
46.475 µg/L 58%
of the EPA limit 80 µg/L
Main supplier: CARPENTERSVILLE · 37,983 people · 2019
1/1 SYR4
Chloroform
17.609 µg/L
No EPA limit set
Main supplier: CARPENTERSVILLE · 37,983 people · 2019
1/1 SYR4
Lead
14.895 µg/L 99%
of the EPA limit 15 µg/L
Main supplier: CARPENTERSVILLE · 37,983 people · 2018
1/1 SYR4
Bromodichloromethane
13.755 µg/L
No EPA limit set
Main supplier: CARPENTERSVILLE · 37,983 people · 2019
1/1 SYR4
Dibromochloromethane
12.06 µg/L
No EPA limit set
Main supplier: CARPENTERSVILLE · 37,983 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
11.1425 µg/L 19%
of the EPA limit 60 µg/L
Main supplier: CARPENTERSVILLE · 37,983 people · 2019
1/1 SYR4
Lithium
10.7 µg/L
No EPA limit set
Main supplier: CARPENTERSVILLE · 37,983 people · 2025
1/1 UCMR-5
Dichloroacetic Acid
7.228 µg/L
No EPA limit set
Main supplier: CARPENTERSVILLE · 37,983 people · 2019
1/1 SYR4
Trichloroacetic Acid
6.74 µg/L
No EPA limit set
Main supplier: CARPENTERSVILLE · 37,983 people · 2019
1/1 SYR4
Bromoform
4.7785 µg/L
No EPA limit set
Main supplier: CARPENTERSVILLE · 37,983 people · 2019
1/1 SYR4
Dibromoacetic Acid
3.1225 µg/L
No EPA limit set
Main supplier: CARPENTERSVILLE · 37,983 people · 2019
1/1 SYR4
Arsenic
1.5 µg/L 15%
of the EPA limit 10 µg/L
Main supplier: CARPENTERSVILLE · 37,983 people · 2018
1/1 SYR4
Combined Radium (-226 And -228)
1.1275 pCi/L 23%
of the EPA limit 5 pCi/L
Main supplier: CARPENTERSVILLE · 37,983 people · 2019
1/1 SYR4
Lead
0.0016 mg/L 11%
of the EPA limit 0.0150 mg/L
Main supplier: CARPENTERSVILLE · 37,983 people · 2025
1/1 LCR
Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Carpentersville

SupplierPopulation served
CARPENTERSVILLE 37,983

Frequently asked questions about Carpentersville tap water

Is Carpentersville tap water safe to drink?

EPA testing detected 18 contaminants in the water serving Carpentersville. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Carpentersville?

1 public water supplier report drinking-water monitoring for Carpentersville, Illinois to the EPA. Each is listed above with its population served.

What contaminants are in Carpentersville's water?

The contaminants EPA monitoring detected in Carpentersville include Fluoride, Copper, Nitrate, Barium, TTHM. The full list, with the level at the main supplier and the data source, is in the table above.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.