What was found in ZIP 61820
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 | 975.5 µg/L 24% of the EPA limit 4000 µg/L Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2018 | 1/2 | SYR4 |
| Copper | 396.45 µg/L 30% of the EPA limit 1300 µg/L Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019 | 2/2 | SYR4 |
| TTHM | 76.92 µg/L 96% of the EPA limit 80 µg/L Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019 | 2/2 | SYR4 |
| Chloroform | 62.16 µg/L No EPA limit set Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 29.48 µg/L 49% of the EPA limit 60 µg/L Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019
Highest in the ZIP: 30.485 µg/L — U OF I-CHAMPAIGN · 13,000 people · 2019 | 2/2 | SYR4 |
| Nitrate | 30 µg/L 0.3% of the EPA limit 10000 µg/L Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019 | 1/2 | SYR4 |
| Nitrate-Nitrite | 30 µg/L 0.3% of the EPA limit 10000 µg/L Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2018 | 1/2 | SYR4 |
| Lead | 3 µg/L 20% of the EPA limit 15 µg/L Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019
Highest in the ZIP: 21.6 µg/L — U OF I-CHAMPAIGN · 13,000 people · 2017 | 2/2 | SYR4 |
| Dichloroacetic Acid | 20.36 µg/L No EPA limit set Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019 | 2/2 | SYR4 |
| Lithium | 14.1 µg/L No EPA limit set Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2024 | 1/2 | UCMR-5 |
| Trichloroacetic Acid | 8.86 µg/L No EPA limit set Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019
Highest in the ZIP: 12.5 µg/L — U OF I-CHAMPAIGN · 13,000 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 4.09 µg/L No EPA limit set Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019
Highest in the ZIP: 11.61 µg/L — U OF I-CHAMPAIGN · 13,000 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 11.16 µg/L No EPA limit set Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 2.7 µg/L No EPA limit set Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019
Highest in the ZIP: 10.975 µg/L — U OF I-CHAMPAIGN · 13,000 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 3.86 µg/L No EPA limit set Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 3.52 µg/L No EPA limit set Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2019 | 2/2 | SYR4 |
| Arsenic | 2 µg/L 20% of the EPA limit 10 µg/L Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2018 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 1.7712 pCi/L 35% of the EPA limit 5 pCi/L Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2018 | 1/2 | SYR4 |
| Bromoform | 1.084 µg/L No EPA limit set Highest in the ZIP: U OF I-CHAMPAIGN · 13,000 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: IL AMERICAN-CHAMPAIGN · 150,000 people · 2026
Highest in the ZIP: 0.0130 mg/L — U OF I-CHAMPAIGN · 13,000 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 61820
| Supplier | State | Population served |
|---|---|---|
| IL AMERICAN-CHAMPAIGN | IL | 150,000 |
| U OF I-CHAMPAIGN | IL | 13,000 |
Frequently asked questions about ZIP 61820 tap water
Is the tap water in ZIP 61820 safe to drink?
EPA testing detected 20 contaminants across the water suppliers serving ZIP 61820. 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 61820?
2 public water suppliers report EPA drinking-water monitoring for ZIP 61820. Each is listed above with its population served.
What contaminants are in ZIP 61820's water?
EPA monitoring detected Fluoride, Copper, TTHM, Chloroform, Total Haloacetic Acids (HAA5), and others across this ZIP's suppliers. The full list with levels and sources is above.