What was found in ZIP 60440
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.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Fluoride | 1232 µg/L 31% of the EPA limit 4000 µg/L Highest in the ZIP: ROMEOVILLE · 50,458 people · 2017 | 1/3 | SYR4 |
| Nitrate | 853.05 µg/L 8.5% of the EPA limit 10000 µg/L Highest in the ZIP: ROMEOVILLE · 50,458 people · 2019 | 1/3 | SYR4 |
| Nitrate-Nitrite | 774.2 µg/L 7.7% of the EPA limit 10000 µg/L Highest in the ZIP: ROMEOVILLE · 50,458 people · 2016 | 1/3 | SYR4 |
| Copper | 153 µg/L 12% of the EPA limit 1300 µg/L Main supplier: IL AMERICAN-WEST SUBURBAN · 73,978 people · 2018
Highest in the ZIP: 311.15 µg/L — ROMEOVILLE · 50,458 people · 2018 | 3/3 | SYR4 |
| Barium | 132.4 µg/L 6.6% of the EPA limit 2000 µg/L Highest in the ZIP: ROMEOVILLE · 50,458 people · 2017 | 1/3 | SYR4 |
| Lithium | 54.6 µg/L No EPA limit set Highest in the ZIP: ROMEOVILLE · 50,458 people · 2025 | 1/3 | UCMR-5 |
| TTHM | 52.2 µg/L 65% of the EPA limit 80 µg/L Main supplier: IL AMERICAN-WEST SUBURBAN · 73,978 people · 2019
Highest in the ZIP: 52.27 µg/L — IL AMERICAN-HOMER TOWNSHIP · 24,543 people · 2019 | 3/3 | SYR4 |
| Chloroform | 30.92 µg/L No EPA limit set Main supplier: IL AMERICAN-WEST SUBURBAN · 73,978 people · 2019 | 3/3 | SYR4 |
| Lead | 11.9 µg/L 79% of the EPA limit 15 µg/L Main supplier: IL AMERICAN-WEST SUBURBAN · 73,978 people · 2018
Highest in the ZIP: 24.21 µg/L — ROMEOVILLE · 50,458 people · 2018 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 20.925 µg/L 35% of the EPA limit 60 µg/L Main supplier: IL AMERICAN-WEST SUBURBAN · 73,978 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 13.66 µg/L No EPA limit set Main supplier: IL AMERICAN-WEST SUBURBAN · 73,978 people · 2019
Highest in the ZIP: 14.53 µg/L — IL AMERICAN-HOMER TOWNSHIP · 24,543 people · 2019 | 3/3 | SYR4 |
| Dibromochloromethane | 7.9 µg/L No EPA limit set Main supplier: IL AMERICAN-WEST SUBURBAN · 73,978 people · 2019
Highest in the ZIP: 13.3 µg/L — ROMEOVILLE · 50,458 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 11.27 µg/L No EPA limit set Main supplier: IL AMERICAN-WEST SUBURBAN · 73,978 people · 2019
Highest in the ZIP: 11.4 µg/L — IL AMERICAN-HOMER TOWNSHIP · 24,543 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 8.97 µg/L No EPA limit set Main supplier: IL AMERICAN-WEST SUBURBAN · 73,978 people · 2019
Highest in the ZIP: 11.29 µg/L — IL AMERICAN-HOMER TOWNSHIP · 24,543 people · 2019 | 3/3 | SYR4 |
| Bromoform | 2.55 µg/L No EPA limit set Main supplier: IL AMERICAN-WEST SUBURBAN · 73,978 people · 2019
Highest in the ZIP: 7.185 µg/L — ROMEOVILLE · 50,458 people · 2019 | 3/3 | SYR4 |
| Dibromoacetic Acid | 2.3 µg/L No EPA limit set Main supplier: IL AMERICAN-WEST SUBURBAN · 73,978 people · 2019
Highest in the ZIP: 4.2165 µg/L — ROMEOVILLE · 50,458 people · 2019 | 3/3 | SYR4 |
| Combined Radium (-226 And -228) | 4.05 pCi/L 81% of the EPA limit 5 pCi/L Highest in the ZIP: ROMEOVILLE · 50,458 people · 2019 | 1/3 | SYR4 |
| Monochloroacetic Acid | 3.84 µg/L No EPA limit set Main supplier: IL AMERICAN-WEST SUBURBAN · 73,978 people · 2019 | 2/3 | SYR4 |
| Xylenes, Total | 3.401 µg/L 0% of the EPA limit 10000 µg/L Highest in the ZIP: ROMEOVILLE · 50,458 people · 2019 | 1/3 | SYR4 |
| Monobromoacetic Acid | 1.8 µg/L No EPA limit set Main supplier: IL AMERICAN-WEST SUBURBAN · 73,978 people · 2019
Highest in the ZIP: 3.393 µg/L — ROMEOVILLE · 50,458 people · 2019 | 3/3 | SYR4 |
| Arsenic | 1.1842 µg/L 12% of the EPA limit 10 µg/L Highest in the ZIP: ROMEOVILLE · 50,458 people · 2017 | 1/3 | SYR4 |
| Ethylbenzene | 0.5600 µg/L 0.1% of the EPA limit 700 µg/L Highest in the ZIP: ROMEOVILLE · 50,458 people · 2019 | 1/3 | SYR4 |
| Pfpea | 0.0212 µg/L No EPA limit set Highest in the ZIP: ROMEOVILLE · 50,458 people · 2025 | 1/3 | UCMR-5 |
| Pfhxa | 0.0118 µg/L No EPA limit set Highest in the ZIP: ROMEOVILLE · 50,458 people · 2025 | 1/3 | UCMR-5 |
| Pfba | 0.0089 µg/L No EPA limit set Highest in the ZIP: ROMEOVILLE · 50,458 people · 2025 | 1/3 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: IL AMERICAN-WEST SUBURBAN · 73,978 people · 2024
Highest in the ZIP: 0.0082 mg/L — ROMEOVILLE · 50,458 people · 2025 | 3/3 | 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 60440
| Supplier | State | Population served |
|---|---|---|
| IL AMERICAN-WEST SUBURBAN | IL | 73,978 |
| ROMEOVILLE | IL | 50,458 |
| IL AMERICAN-HOMER TOWNSHIP | IL | 24,543 |
Frequently asked questions about ZIP 60440 tap water
Is the tap water in ZIP 60440 safe to drink?
EPA testing detected 26 contaminants across the water suppliers serving ZIP 60440. 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 60440?
3 public water suppliers report EPA drinking-water monitoring for ZIP 60440. Each is listed above with its population served.
What contaminants are in ZIP 60440's water?
EPA monitoring detected Fluoride, Nitrate, Nitrate-Nitrite, Copper, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.