What was found in ZIP 61011
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 | 4900 µg/L 49% of the EPA limit 10000 µg/L Main supplier: NORTH PARK PWD · 35,580 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 4870 µg/L 49% of the EPA limit 10000 µg/L Main supplier: NORTH PARK PWD · 35,580 people · 2018 | 1/1 | SYR4 |
| Fluoride | 1239 µg/L 31% of the EPA limit 4000 µg/L Main supplier: NORTH PARK PWD · 35,580 people · 2018 | 1/1 | SYR4 |
| Copper | 582.5 µg/L 45% of the EPA limit 1300 µg/L Main supplier: NORTH PARK PWD · 35,580 people · 2017 | 1/1 | SYR4 |
| Barium | 138 µg/L 6.9% of the EPA limit 2000 µg/L Main supplier: NORTH PARK PWD · 35,580 people · 2018 | 1/1 | SYR4 |
| TTHM | 16.981 µg/L 21% of the EPA limit 80 µg/L Main supplier: NORTH PARK PWD · 35,580 people · 2019 | 1/1 | SYR4 |
| Lithium | 9.33 µg/L No EPA limit set Main supplier: NORTH PARK PWD · 35,580 people · 2025 | 1/1 | UCMR-5 |
| Chromium | 6.7 µg/L 6.7% of the EPA limit 100 µg/L Main supplier: NORTH PARK PWD · 35,580 people · 2018 | 1/1 | SYR4 |
| Chloroform | 5.6473 µg/L No EPA limit set Main supplier: NORTH PARK PWD · 35,580 people · 2019 | 1/1 | SYR4 |
| Lead | 5.62 µg/L 37% of the EPA limit 15 µg/L Main supplier: NORTH PARK PWD · 35,580 people · 2017 | 1/1 | SYR4 |
| Bromodichloromethane | 5.258 µg/L No EPA limit set Main supplier: NORTH PARK PWD · 35,580 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 5.093 µg/L 8.5% of the EPA limit 60 µg/L Main supplier: NORTH PARK PWD · 35,580 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 4.493 µg/L No EPA limit set Main supplier: NORTH PARK PWD · 35,580 people · 2019 | 1/1 | SYR4 |
| Selenium | 3.92 µg/L 7.8% of the EPA limit 50 µg/L Main supplier: NORTH PARK PWD · 35,580 people · 2018 | 1/1 | SYR4 |
| Bromoform | 3.184 µg/L No EPA limit set Main supplier: NORTH PARK PWD · 35,580 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 3.0595 µg/L No EPA limit set Main supplier: NORTH PARK PWD · 35,580 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 2.2 µg/L No EPA limit set Main supplier: NORTH PARK PWD · 35,580 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 1.942 µg/L No EPA limit set Main supplier: NORTH PARK PWD · 35,580 people · 2019 | 1/1 | SYR4 |
| Trichloroethylene | 1.895 µg/L 38% of the EPA limit 5 µg/L Main supplier: NORTH PARK PWD · 35,580 people · 2019 | 1/1 | SYR4 |
| Arsenic | 1.575 µg/L 16% of the EPA limit 10 µg/L Main supplier: NORTH PARK PWD · 35,580 people · 2018 | 1/1 | SYR4 |
| Tetrachloroethylene | 1.37 µg/L 27% of the EPA limit 5 µg/L Main supplier: NORTH PARK PWD · 35,580 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 1.26 µg/L No EPA limit set Main supplier: NORTH PARK PWD · 35,580 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 0.3320 pCi/L 6.6% of the EPA limit 5 pCi/L Main supplier: NORTH PARK PWD · 35,580 people · 2015 | 1/1 | SYR4 |
| PFHXS | 0.0182 µg/L No EPA limit set Main supplier: NORTH PARK PWD · 35,580 people · 2025 | 1/1 | UCMR-5 |
| PFOS | 0.0073 µg/L No EPA limit set Main supplier: NORTH PARK PWD · 35,580 people · 2025 | 1/1 | UCMR-5 |
| Pfba | 0.0070 µg/L No EPA limit set Main supplier: NORTH PARK PWD · 35,580 people · 2025 | 1/1 | UCMR-5 |
| PFOA | 0.0062 µg/L No EPA limit set Main supplier: NORTH PARK PWD · 35,580 people · 2025 | 1/1 | UCMR-5 |
| PFBS | 0.0054 µg/L No EPA limit set Main supplier: NORTH PARK PWD · 35,580 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0053 mg/L 35% of the EPA limit 0.0150 mg/L Main supplier: NORTH PARK PWD · 35,580 people · 2025 | 1/1 | LCR |
| Pfhxa | 0.0047 µg/L No EPA limit set Main supplier: NORTH PARK PWD · 35,580 people · 2025 | 1/1 | UCMR-5 |
| Pfpea | 0.0042 µg/L No EPA limit set Main supplier: NORTH PARK PWD · 35,580 people · 2025 | 1/1 | UCMR-5 |
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 61011
| Supplier | State | Population served |
|---|---|---|
| NORTH PARK PWD | IL | 35,580 |
Frequently asked questions about ZIP 61011 tap water
Is the tap water in ZIP 61011 safe to drink?
EPA testing detected 31 contaminants across the water suppliers serving ZIP 61011. 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 61011?
1 public water supplier report EPA drinking-water monitoring for ZIP 61011. Each is listed above with its population served.
What contaminants are in ZIP 61011's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Copper, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.