What was found in ZIP 60031
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 | 271.2 µg/L 21% of the EPA limit 1300 µg/L Main supplier: GURNEE · 30,193 people · 2018
Highest in the ZIP: 475.75 µg/L — GRANDWOOD PARK SUBDIVISION - LAKE CO PW · 5,751 people · 2019 | 2/2 | SYR4 |
| TTHM | 30.46 µg/L 38% of the EPA limit 80 µg/L Main supplier: GURNEE · 30,193 people · 2019 | 2/2 | SYR4 |
| Chloroform | 14.7 µg/L No EPA limit set Main supplier: GURNEE · 30,193 people · 2019
Highest in the ZIP: 16.7 µg/L — GRANDWOOD PARK SUBDIVISION - LAKE CO PW · 5,751 people · 2019 | 2/2 | SYR4 |
| Lead | 13.175 µg/L 88% of the EPA limit 15 µg/L Main supplier: GURNEE · 30,193 people · 2018 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 11.168 µg/L 19% of the EPA limit 60 µg/L Main supplier: GURNEE · 30,193 people · 2019
Highest in the ZIP: 12.135 µg/L — GRANDWOOD PARK SUBDIVISION - LAKE CO PW · 5,751 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 9.162 µg/L No EPA limit set Main supplier: GURNEE · 30,193 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 5.16 µg/L No EPA limit set Main supplier: GURNEE · 30,193 people · 2019
Highest in the ZIP: 7.91 µg/L — GRANDWOOD PARK SUBDIVISION - LAKE CO PW · 5,751 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 6.277 µg/L No EPA limit set Main supplier: GURNEE · 30,193 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 3.62 µg/L No EPA limit set Main supplier: GURNEE · 30,193 people · 2019
Highest in the ZIP: 4.86 µg/L — GRANDWOOD PARK SUBDIVISION - LAKE CO PW · 5,751 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 3.434 µg/L No EPA limit set Main supplier: GURNEE · 30,193 people · 2019 | 1/2 | SYR4 |
| Dibromoacetic Acid | 2.3265 µg/L No EPA limit set Main supplier: GURNEE · 30,193 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 1.9965 µg/L No EPA limit set Main supplier: GURNEE · 30,193 people · 2019 | 2/2 | SYR4 |
| Bromoform | 1.35 µg/L No EPA limit set Main supplier: GURNEE · 30,193 people · 2019 | 2/2 | SYR4 |
| Lead | 0.00030 mg/L 2% of the EPA limit 0.0150 mg/L Main supplier: GURNEE · 30,193 people · 2025
Highest in the ZIP: 0.0011 mg/L — GRANDWOOD PARK SUBDIVISION - LAKE CO PW · 5,751 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 60031
| Supplier | State | Population served |
|---|---|---|
| GURNEE | IL | 30,193 |
| GRANDWOOD PARK SUBDIVISION - LAKE CO PW | 5,751 |
Frequently asked questions about ZIP 60031 tap water
Is the tap water in ZIP 60031 safe to drink?
EPA testing detected 14 contaminants across the water suppliers serving ZIP 60031. 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 60031?
2 public water suppliers report EPA drinking-water monitoring for ZIP 60031. Each is listed above with its population served.
What contaminants are in ZIP 60031's water?
EPA monitoring detected Copper, TTHM, Chloroform, Lead, Total Haloacetic Acids (HAA5), and others across this ZIP's suppliers. The full list with levels and sources is above.