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Tap water quality report

ZIP 60004 — Arlington Heights, IL

EPA monitoring across the 2 water suppliers serving ZIP 60004 in Arlington Heights, IL detected 14 contaminants. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier below, with the EPA limit for each.

2
water suppliers
84,507
people served
14
contaminants found

What was found in ZIP 60004

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

ContaminantLevel vs EPA limitSuppliersSource
Copper
172.5 µg/L 13%
of the EPA limit 1300 µg/L
Main supplier: ARLINGTON HEIGHTS · 73,320 people · 2017
2/2 SYR4
TTHM
48.7 µg/L 61%
of the EPA limit 80 µg/L
Main supplier: ARLINGTON HEIGHTS · 73,320 people · 2019
Highest in the ZIP: 51.1 µg/L — IL AMERICAN-CHICAGO SUBURBAN · 11,187 people · 2019
2/2 SYR4
Lead
9.41 µg/L 63%
of the EPA limit 15 µg/L
Main supplier: ARLINGTON HEIGHTS · 73,320 people · 2017
Highest in the ZIP: 42 µg/L — IL AMERICAN-CHICAGO SUBURBAN · 11,187 people · 2019
2/2 SYR4
Chloroform
29.592 µg/L
No EPA limit set
Main supplier: ARLINGTON HEIGHTS · 73,320 people · 2019
Highest in the ZIP: 30.36 µg/L — IL AMERICAN-CHICAGO SUBURBAN · 11,187 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
29.475 µg/L 49%
of the EPA limit 60 µg/L
Main supplier: ARLINGTON HEIGHTS · 73,320 people · 2019
2/2 SYR4
Monobromoacetic Acid
24.07 µg/L
No EPA limit set
Main supplier: ARLINGTON HEIGHTS · 73,320 people · 2019
2/2 SYR4
Dichloroacetic Acid
14.45 µg/L
No EPA limit set
Main supplier: ARLINGTON HEIGHTS · 73,320 people · 2019
2/2 SYR4
Bromodichloromethane
12.9 µg/L
No EPA limit set
Main supplier: ARLINGTON HEIGHTS · 73,320 people · 2019
Highest in the ZIP: 13.715 µg/L — IL AMERICAN-CHICAGO SUBURBAN · 11,187 people · 2019
2/2 SYR4
Trichloroacetic Acid
10.635 µg/L
No EPA limit set
Main supplier: ARLINGTON HEIGHTS · 73,320 people · 2019
2/2 SYR4
Monochloroacetic Acid
8.48 µg/L
No EPA limit set
Main supplier: ARLINGTON HEIGHTS · 73,320 people · 2019
2/2 SYR4
Dibromochloromethane
6.655 µg/L
No EPA limit set
Main supplier: ARLINGTON HEIGHTS · 73,320 people · 2019
Highest in the ZIP: 7.745 µg/L — IL AMERICAN-CHICAGO SUBURBAN · 11,187 people · 2019
2/2 SYR4
Dibromoacetic Acid
1.684 µg/L
No EPA limit set
Main supplier: ARLINGTON HEIGHTS · 73,320 people · 2019
Highest in the ZIP: 2.1 µg/L — IL AMERICAN-CHICAGO SUBURBAN · 11,187 people · 2019
2/2 SYR4
Bromoform
1.5222 µg/L
No EPA limit set
Main supplier: ARLINGTON HEIGHTS · 73,320 people · 2019
1/2 SYR4
Lead
0.0088 mg/L 59%
of the EPA limit 0.0150 mg/L
Main supplier: ARLINGTON HEIGHTS · 73,320 people · 2025
2/2 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.

Water suppliers serving ZIP 60004

SupplierStatePopulation served
ARLINGTON HEIGHTS IL 73,320
IL AMERICAN-CHICAGO SUBURBAN IL 11,187

Frequently asked questions about ZIP 60004 tap water

Is the tap water in ZIP 60004 safe to drink?

EPA testing detected 14 contaminants across the water suppliers serving ZIP 60004. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.

Which water suppliers serve ZIP 60004?

2 public water suppliers report EPA drinking-water monitoring for ZIP 60004. Each is listed above with its population served.

What contaminants are in ZIP 60004's water?

EPA monitoring detected Copper, TTHM, Lead, Chloroform, Total Haloacetic Acids (HAA5), and others across this ZIP's suppliers. The full list with levels and sources is above.