What was found in ZIP 62946
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 | 1057.6 µg/L 26% of the EPA limit 4000 µg/L Highest in the ZIP: SALINE VALLEY CONSERVANCY DISTRICT · 3,921 people · 2018 | 1/3 | SYR4 |
| Copper | 291.5 µg/L 22% of the EPA limit 1300 µg/L Main supplier: HARRISBURG · 8,524 people · 2017
Highest in the ZIP: 335.75 µg/L — CORINTH PWD · 3,927 people · 2019 | 3/3 | SYR4 |
| Nitrate | 120 µg/L 1.2% of the EPA limit 10000 µg/L Highest in the ZIP: SALINE VALLEY CONSERVANCY DISTRICT · 3,921 people · 2019 | 1/3 | SYR4 |
| TTHM | 25.491 µg/L 32% of the EPA limit 80 µg/L Main supplier: HARRISBURG · 8,524 people · 2019
Highest in the ZIP: 66.35 µg/L — SALINE VALLEY CONSERVANCY DISTRICT · 3,921 people · 2019 | 3/3 | SYR4 |
| Lithium | 54 µg/L No EPA limit set Highest in the ZIP: SALINE VALLEY CONSERVANCY DISTRICT · 3,921 people · 2023 | 1/3 | UCMR-5 |
| Chloroform | 12.9635 µg/L No EPA limit set Main supplier: HARRISBURG · 8,524 people · 2019
Highest in the ZIP: 41.87 µg/L — CORINTH PWD · 3,927 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 6.31 µg/L 11% of the EPA limit 60 µg/L Main supplier: HARRISBURG · 8,524 people · 2019
Highest in the ZIP: 24.975 µg/L — CORINTH PWD · 3,927 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 7.68425 µg/L No EPA limit set Main supplier: HARRISBURG · 8,524 people · 2019
Highest in the ZIP: 21.45 µg/L — SALINE VALLEY CONSERVANCY DISTRICT · 3,921 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 3.873 µg/L No EPA limit set Main supplier: HARRISBURG · 8,524 people · 2019
Highest in the ZIP: 20.16 µg/L — CORINTH PWD · 3,927 people · 2019 | 3/3 | SYR4 |
| Barium | 14.675 µg/L 0.7% of the EPA limit 2000 µg/L Highest in the ZIP: SALINE VALLEY CONSERVANCY DISTRICT · 3,921 people · 2017 | 1/3 | SYR4 |
| Dibromochloromethane | 4.751 µg/L No EPA limit set Main supplier: HARRISBURG · 8,524 people · 2019
Highest in the ZIP: 14.25 µg/L — SALINE VALLEY CONSERVANCY DISTRICT · 3,921 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 2.9575 µg/L No EPA limit set Main supplier: HARRISBURG · 8,524 people · 2019
Highest in the ZIP: 8.82 µg/L — SALINE VALLEY CONSERVANCY DISTRICT · 3,921 people · 2019 | 3/3 | SYR4 |
| Lead | 8.016 µg/L 53% of the EPA limit 15 µg/L Highest in the ZIP: CORINTH PWD · 3,927 people · 2019 | 2/3 | SYR4 |
| Monobromoacetic Acid | 5.89 µg/L No EPA limit set Highest in the ZIP: SALINE VALLEY CONSERVANCY DISTRICT · 3,921 people · 2019 | 1/3 | SYR4 |
| Monochloroacetic Acid | 2.94 µg/L No EPA limit set Highest in the ZIP: CORINTH PWD · 3,927 people · 2019 | 1/3 | SYR4 |
| Bromoform | 2.108 µg/L No EPA limit set Main supplier: HARRISBURG · 8,524 people · 2019
Highest in the ZIP: 2.5945 µg/L — SALINE VALLEY CONSERVANCY DISTRICT · 3,921 people · 2019 | 2/3 | SYR4 |
| Dibromoacetic Acid | 1.52 µg/L No EPA limit set Main supplier: HARRISBURG · 8,524 people · 2019
Highest in the ZIP: 2.349 µg/L — SALINE VALLEY CONSERVANCY DISTRICT · 3,921 people · 2019 | 3/3 | SYR4 |
| Arsenic | 1.1 µg/L 11% of the EPA limit 10 µg/L Highest in the ZIP: SALINE VALLEY CONSERVANCY DISTRICT · 3,921 people · 2017 | 1/3 | SYR4 |
| Combined Radium (-226 And -228) | 0.2920 pCi/L 5.8% of the EPA limit 5 pCi/L Highest in the ZIP: SALINE VALLEY CONSERVANCY DISTRICT · 3,921 people · 2015 | 1/3 | SYR4 |
| Pfba | 0.0056 µg/L No EPA limit set Highest in the ZIP: CORINTH PWD · 3,927 people · 2023 | 1/3 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: HARRISBURG · 8,524 people · 2025
Highest in the ZIP: 0.0046 mg/L — CORINTH PWD · 3,927 people · 2025 | 3/3 | 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 62946
| Supplier | State | Population served |
|---|---|---|
| HARRISBURG | IL | 8,524 |
| CORINTH PWD | IL | 3,927 |
| SALINE VALLEY CONSERVANCY DISTRICT | IL | 3,921 |
Frequently asked questions about ZIP 62946 tap water
Is the tap water in ZIP 62946 safe to drink?
EPA testing detected 21 contaminants across the water suppliers serving ZIP 62946. 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 62946?
3 public water suppliers report EPA drinking-water monitoring for ZIP 62946. Each is listed above with its population served.
What contaminants are in ZIP 62946's water?
EPA monitoring detected Fluoride, Copper, Nitrate, TTHM, Lithium, and others across this ZIP's suppliers. The full list with levels and sources is above.