What was found in ZIP 61356
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 |
|---|---|---|---|
| Fluoride | 1099 µg/L 27% of the EPA limit 4000 µg/L Main supplier: PRINCETON · 7,832 people · 2017 | 1/1 | SYR4 |
| Nitrate | 190 µg/L 1.9% of the EPA limit 10000 µg/L Main supplier: PRINCETON · 7,832 people · 2019 | 1/1 | SYR4 |
| Copper | 102 µg/L 7.8% of the EPA limit 1300 µg/L Main supplier: PRINCETON · 7,832 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 40 µg/L 0.4% of the EPA limit 10000 µg/L Main supplier: PRINCETON · 7,832 people · 2017 | 1/1 | SYR4 |
| Lead | 29.4 µg/L 196% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: PRINCETON · 7,832 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 13.975 µg/L 23% of the EPA limit 60 µg/L Main supplier: PRINCETON · 7,832 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 11.515 µg/L No EPA limit set Main supplier: PRINCETON · 7,832 people · 2019 | 1/1 | SYR4 |
| TTHM | 10.721 µg/L 13% of the EPA limit 80 µg/L Main supplier: PRINCETON · 7,832 people · 2019 | 1/1 | SYR4 |
| Chloroform | 10.1815 µg/L No EPA limit set Main supplier: PRINCETON · 7,832 people · 2019 | 1/1 | SYR4 |
| Arsenic | 7.78 µg/L 78% of the EPA limit 10 µg/L Main supplier: PRINCETON · 7,832 people · 2017 | 1/1 | SYR4 |
| Barium | 7.42 µg/L 0.4% of the EPA limit 2000 µg/L Main supplier: PRINCETON · 7,832 people · 2017 | 1/1 | SYR4 |
| Monochloroacetic Acid | 2.61 µg/L No EPA limit set Main supplier: PRINCETON · 7,832 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 2.186 µg/L No EPA limit set Main supplier: PRINCETON · 7,832 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 1.434 pCi/L 29% of the EPA limit 5 pCi/L Main supplier: PRINCETON · 7,832 people · 2015 | 1/1 | SYR4 |
| Bromodichloromethane | 0.5519 µg/L No EPA limit set Main supplier: PRINCETON · 7,832 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0270 mg/L 180% above the EPA limit of 0.0150 mg/L Main supplier: PRINCETON · 7,832 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 61356
| Supplier | State | Population served |
|---|---|---|
| PRINCETON | IL | 7,832 |
Frequently asked questions about ZIP 61356 tap water
Is the tap water in ZIP 61356 safe to drink?
EPA testing detected 16 contaminants across the water suppliers serving ZIP 61356. 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 61356?
1 public water supplier report EPA drinking-water monitoring for ZIP 61356. Each is listed above with its population served.
What contaminants are in ZIP 61356's water?
EPA monitoring detected Fluoride, Nitrate, Copper, Nitrate-Nitrite, Lead, and others across this ZIP's suppliers. The full list with levels and sources is above.