What was found in ZIP 60527
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 |
|---|---|---|---|
| Nitrate-Nitrite | 6779 µg/L 68% of the EPA limit 10000 µg/L Highest in the ZIP: CLARK COUNTY CONS PWSD 1 · 7,140 people · 2019 | 1/5 | SYR4 |
| Copper | 649.5 µg/L 50% of the EPA limit 1300 µg/L Main supplier: WESTMONT · 24,161 people · 2017 | 5/5 | SYR4 |
| Fluoride | 130 µg/L 3.3% of the EPA limit 4000 µg/L Highest in the ZIP: CLARK COUNTY CONS PWSD 1 · 7,140 people · 2017 | 1/5 | SYR4 |
| Lead | 13.545 µg/L 90% of the EPA limit 15 µg/L Main supplier: WESTMONT · 24,161 people · 2017
Highest in the ZIP: 70.45 µg/L — BURR RIDGE · 11,192 people · 2017 | 5/5 | SYR4 |
| TTHM | 49.03 µg/L 61% of the EPA limit 80 µg/L Main supplier: WESTMONT · 24,161 people · 2019
Highest in the ZIP: 57.29 µg/L — SOUTHEAST REGIONAL WATER FACILITY · 6,940 people · 2019 | 5/5 | SYR4 |
| Barium | 54.07 µg/L 2.7% of the EPA limit 2000 µg/L Highest in the ZIP: CLARK COUNTY CONS PWSD 1 · 7,140 people · 2017 | 1/5 | SYR4 |
| Chloroform | 29.47 µg/L No EPA limit set Main supplier: WESTMONT · 24,161 people · 2019
Highest in the ZIP: 35.7 µg/L — SOUTHEAST REGIONAL WATER FACILITY · 6,940 people · 2019 | 5/5 | SYR4 |
| Total Haloacetic Acids (HAA5) | 25.8 µg/L 43% of the EPA limit 60 µg/L Main supplier: WESTMONT · 24,161 people · 2019
Highest in the ZIP: 27 µg/L — BURR RIDGE · 11,192 people · 2019 | 4/5 | SYR4 |
| Bromodichloromethane | 13.34 µg/L No EPA limit set Main supplier: WESTMONT · 24,161 people · 2019
Highest in the ZIP: 14.96 µg/L — SOUTHEAST REGIONAL WATER FACILITY · 6,940 people · 2019 | 5/5 | SYR4 |
| Dichloroacetic Acid | 11.8 µg/L No EPA limit set Main supplier: WESTMONT · 24,161 people · 2019
Highest in the ZIP: 13.7 µg/L — BURR RIDGE · 11,192 people · 2019 | 5/5 | SYR4 |
| Trichloroacetic Acid | 11.55 µg/L No EPA limit set Main supplier: WESTMONT · 24,161 people · 2019
Highest in the ZIP: 13.43 µg/L — BURR RIDGE · 11,192 people · 2019 | 5/5 | SYR4 |
| Dibromochloromethane | 6.673 µg/L No EPA limit set Main supplier: WESTMONT · 24,161 people · 2019 | 5/5 | SYR4 |
| Monobromoacetic Acid | 1.79 µg/L No EPA limit set Main supplier: WESTMONT · 24,161 people · 2019
Highest in the ZIP: 4.7095 µg/L — CLARK COUNTY CONS PWSD 1 · 7,140 people · 2019 | 5/5 | SYR4 |
| Monochloroacetic Acid | 3.8745 µg/L No EPA limit set Main supplier: WESTMONT · 24,161 people · 2019 | 2/5 | SYR4 |
| Chromium | 3.0075 µg/L 3% of the EPA limit 100 µg/L Highest in the ZIP: CLARK COUNTY CONS PWSD 1 · 7,140 people · 2017 | 1/5 | SYR4 |
| Dibromoacetic Acid | 1.4705 µg/L No EPA limit set Main supplier: WESTMONT · 24,161 people · 2019
Highest in the ZIP: 2.45 µg/L — BURR RIDGE · 11,192 people · 2019 | 5/5 | SYR4 |
| Bromoform | 1.5664 µg/L No EPA limit set Highest in the ZIP: BURR RIDGE · 11,192 people · 2019 | 3/5 | SYR4 |
| Lead | 0.0083 mg/L 55% of the EPA limit 0.0150 mg/L Main supplier: WESTMONT · 24,161 people · 2025 | 5/5 | 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 60527
| Supplier | State | Population served |
|---|---|---|
| WESTMONT | IL | 24,161 |
| BURR RIDGE | IL | 11,192 |
| WILLOWBROOK | IL | 9,000 |
| CLARK COUNTY CONS PWSD 1 | MO | 7,140 |
| SOUTHEAST REGIONAL WATER FACILITY | IL | 6,940 |
Frequently asked questions about ZIP 60527 tap water
Is the tap water in ZIP 60527 safe to drink?
EPA testing detected 18 contaminants across the water suppliers serving ZIP 60527. 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 60527?
5 public water suppliers report EPA drinking-water monitoring for ZIP 60527. Each is listed above with its population served.
What contaminants are in ZIP 60527's water?
EPA monitoring detected Nitrate-Nitrite, Copper, Fluoride, Lead, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.