What was found in ZIP 60301
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 |
|---|---|---|---|
| Copper | 264 µg/L 20% of the EPA limit 1300 µg/L Main supplier: OAK PARK · 54,583 people · 2018 | 1/1 | SYR4 |
| TTHM | 46.6 µg/L 58% of the EPA limit 80 µg/L Main supplier: OAK PARK · 54,583 people · 2019 | 1/1 | SYR4 |
| Chloroform | 26.9 µg/L No EPA limit set Main supplier: OAK PARK · 54,583 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 24.9 µg/L 42% of the EPA limit 60 µg/L Main supplier: OAK PARK · 54,583 people · 2019 | 1/1 | SYR4 |
| Lead | 16.23 µg/L 108% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: OAK PARK · 54,583 people · 2018 | 1/1 | SYR4 |
| Bromodichloromethane | 13.6 µg/L No EPA limit set Main supplier: OAK PARK · 54,583 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 11.9 µg/L No EPA limit set Main supplier: OAK PARK · 54,583 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 10.6 µg/L No EPA limit set Main supplier: OAK PARK · 54,583 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 6.69 µg/L No EPA limit set Main supplier: OAK PARK · 54,583 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 4.9175 µg/L No EPA limit set Main supplier: OAK PARK · 54,583 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 1.9105 µg/L No EPA limit set Main supplier: OAK PARK · 54,583 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.674 µg/L No EPA limit set Main supplier: OAK PARK · 54,583 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0051 mg/L 34% of the EPA limit 0.0150 mg/L Main supplier: OAK PARK · 54,583 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.
Water suppliers serving ZIP 60301
| Supplier | State | Population served |
|---|---|---|
| OAK PARK | IL | 54,583 |
Frequently asked questions about ZIP 60301 tap water
Is the tap water in ZIP 60301 safe to drink?
EPA testing detected 13 contaminants across the water suppliers serving ZIP 60301. 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 60301?
1 public water supplier report EPA drinking-water monitoring for ZIP 60301. Each is listed above with its population served.
What contaminants are in ZIP 60301's water?
EPA monitoring detected Copper, TTHM, Chloroform, Total Haloacetic Acids (HAA5), Lead, and others across this ZIP's suppliers. The full list with levels and sources is above.