What was found in ZIP 60420
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 | 3500 µg/L 35% of the EPA limit 10000 µg/L Main supplier: DWIGHT · 4,400 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 1880 µg/L 19% of the EPA limit 10000 µg/L Main supplier: DWIGHT · 4,400 people · 2018 | 1/1 | SYR4 |
| Copper | 1200 µg/L 92% of the EPA limit 1300 µg/L Main supplier: DWIGHT · 4,400 people · 2017 | 1/1 | SYR4 |
| Fluoride | 811.7 µg/L 20% of the EPA limit 4000 µg/L Main supplier: DWIGHT · 4,400 people · 2018 | 1/1 | SYR4 |
| Barium | 150.1 µg/L 7.5% of the EPA limit 2000 µg/L Main supplier: DWIGHT · 4,400 people · 2018 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 24 µg/L 40% of the EPA limit 60 µg/L Main supplier: DWIGHT · 4,400 people · 2019 | 1/1 | SYR4 |
| TTHM | 21.389 µg/L 27% of the EPA limit 80 µg/L Main supplier: DWIGHT · 4,400 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 12.46 µg/L No EPA limit set Main supplier: DWIGHT · 4,400 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 10.906 µg/L No EPA limit set Main supplier: DWIGHT · 4,400 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 7.802 µg/L No EPA limit set Main supplier: DWIGHT · 4,400 people · 2019 | 1/1 | SYR4 |
| Chloroform | 6.7465 µg/L No EPA limit set Main supplier: DWIGHT · 4,400 people · 2019 | 1/1 | SYR4 |
| Arsenic | 5.79 µg/L 58% of the EPA limit 10 µg/L Main supplier: DWIGHT · 4,400 people · 2018 | 1/1 | SYR4 |
| Dibromochloromethane | 5.1725 µg/L No EPA limit set Main supplier: DWIGHT · 4,400 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 2.879 µg/L No EPA limit set Main supplier: DWIGHT · 4,400 people · 2019 | 1/1 | SYR4 |
| Bromoform | 2.837 µg/L No EPA limit set Main supplier: DWIGHT · 4,400 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 2.41 µg/L No EPA limit set Main supplier: DWIGHT · 4,400 people · 2019 | 1/1 | SYR4 |
| Lead | 2.36 µg/L 16% of the EPA limit 15 µg/L Main supplier: DWIGHT · 4,400 people · 2017 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 2.303 pCi/L 46% of the EPA limit 5 pCi/L Main supplier: DWIGHT · 4,400 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 1.875 µg/L No EPA limit set Main supplier: DWIGHT · 4,400 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0140 mg/L 93% of the EPA limit 0.0150 mg/L Main supplier: DWIGHT · 4,400 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 60420
| Supplier | State | Population served |
|---|---|---|
| DWIGHT | IL | 4,400 |
Frequently asked questions about ZIP 60420 tap water
Is the tap water in ZIP 60420 safe to drink?
EPA testing detected 20 contaminants across the water suppliers serving ZIP 60420. 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 60420?
1 public water supplier report EPA drinking-water monitoring for ZIP 60420. Each is listed above with its population served.
What contaminants are in ZIP 60420's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Copper, Fluoride, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.