What was found in ZIP 62254
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 |
|---|---|---|---|
| Copper | 584.5 µg/L 45% of the EPA limit 1300 µg/L Main supplier: O FALLON · 46,603 people · 2017
Highest in the ZIP: 831.9999999999993 µg/L — TRITOWNSHIP WATER DISTRICT · 3,470 people · 2019 | 4/4 | SYR4 |
| TTHM | 87.4 µg/L 109% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: O FALLON · 46,603 people · 2019
Highest in the ZIP: 123.75 µg/L — TRITOWNSHIP WATER DISTRICT · 3,470 people · 2019 | 4/4 | SYR4 |
| Chloroform | 73.35999999999999 µg/L No EPA limit set Main supplier: O FALLON · 46,603 people · 2019
Highest in the ZIP: 107.6 µg/L — TRITOWNSHIP WATER DISTRICT · 3,470 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 72.93999999999997 µg/L 122% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: O FALLON · 46,603 people · 2019
Highest in the ZIP: 78.92999999999998 µg/L — TRITOWNSHIP WATER DISTRICT · 3,470 people · 2019 | 4/4 | SYR4 |
| Dichloroacetic Acid | 34.63999999999999 µg/L No EPA limit set Main supplier: O FALLON · 46,603 people · 2019
Highest in the ZIP: 49.17999999999997 µg/L — TRITOWNSHIP WATER DISTRICT · 3,470 people · 2019 | 4/4 | SYR4 |
| Trichloroacetic Acid | 36.66 µg/L No EPA limit set Main supplier: O FALLON · 46,603 people · 2019 | 4/4 | SYR4 |
| Lithium | 11.6 µg/L No EPA limit set Main supplier: O FALLON · 46,603 people · 2024
Highest in the ZIP: 25.5 µg/L — CASEYVILLE · 13,798 people · 2025 | 2/4 | UCMR-5 |
| Bromodichloromethane | 14.179999999999998 µg/L No EPA limit set Main supplier: O FALLON · 46,603 people · 2019
Highest in the ZIP: 17 µg/L — TRITOWNSHIP WATER DISTRICT · 3,470 people · 2019 | 4/4 | SYR4 |
| Lead | 2 µg/L 13% of the EPA limit 15 µg/L Main supplier: O FALLON · 46,603 people · 2017
Highest in the ZIP: 17 µg/L — LEBANON · 4,714 people · 2017 | 4/4 | SYR4 |
| Monobromoacetic Acid | 3.934999999999999 µg/L No EPA limit set Main supplier: O FALLON · 46,603 people · 2019
Highest in the ZIP: 12.94 µg/L — LEBANON · 4,714 people · 2019 | 4/4 | SYR4 |
| Monochloroacetic Acid | 7.96 µg/L No EPA limit set Main supplier: O FALLON · 46,603 people · 2019 | 4/4 | SYR4 |
| Dibromochloromethane | 3.1 µg/L No EPA limit set Main supplier: O FALLON · 46,603 people · 2019
Highest in the ZIP: 4.6425 µg/L — TRITOWNSHIP WATER DISTRICT · 3,470 people · 2019 | 4/4 | SYR4 |
| Dibromoacetic Acid | 2.4250000000000003 µg/L No EPA limit set Main supplier: O FALLON · 46,603 people · 2019 | 4/4 | SYR4 |
| Pfba | 0.0130 µg/L No EPA limit set Main supplier: O FALLON · 46,603 people · 2024 | 2/4 | UCMR-5 |
| Lead | 0.0022 mg/L 15% of the EPA limit 0.0150 mg/L Main supplier: O FALLON · 46,603 people · 2025
Highest in the ZIP: 0.0122 mg/L — LEBANON · 4,714 people · 2025 | 4/4 | 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 62254
| Supplier | State | Population served |
|---|---|---|
| O FALLON | IL | 46,603 |
| CASEYVILLE | IL | 13,798 |
| LEBANON | IL | 4,714 |
| TRITOWNSHIP WATER DISTRICT | IL | 3,470 |
Frequently asked questions about ZIP 62254 tap water
Is the tap water in ZIP 62254 safe to drink?
EPA testing detected 15 contaminants across the water suppliers serving ZIP 62254. 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 62254?
4 public water suppliers report EPA drinking-water monitoring for ZIP 62254. Each is listed above with its population served.
What contaminants are in ZIP 62254's water?
EPA monitoring detected Copper, TTHM, Chloroform, Total Haloacetic Acids (HAA5), Dichloroacetic Acid, and others across this ZIP's suppliers. The full list with levels and sources is above.