What was found in ZIP 62240
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 | 5152.5 µg/L 52% of the EPA limit 10000 µg/L Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2019 | 2/3 | SYR4 |
| Fluoride | 1130 µg/L 28% of the EPA limit 4000 µg/L Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2019 | 2/3 | SYR4 |
| Copper | 459.29999999999995 µg/L 35% of the EPA limit 1300 µg/L Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2019
Highest in the ZIP: 480.3999999999993 µg/L — COLUMBIA · 11,129 people · 2017 | 3/3 | SYR4 |
| Nitrate-Nitrite | 88 µg/L 0.9% of the EPA limit 10000 µg/L Highest in the ZIP: DUPO · 4,684 people · 2018 | 1/3 | SYR4 |
| TTHM | 40.645 µg/L 51% of the EPA limit 80 µg/L Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2019
Highest in the ZIP: 86.946 µg/L — DUPO · 4,684 people · 2019 | 3/3 | SYR4 |
| Chloroform | 34.445 µg/L No EPA limit set Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2019
Highest in the ZIP: 58.040000000000006 µg/L — COLUMBIA · 11,129 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 28.74999999999999 µg/L 48% of the EPA limit 60 µg/L Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2019
Highest in the ZIP: 41.36000000000001 µg/L — COLUMBIA · 11,129 people · 2019 | 3/3 | SYR4 |
| Barium | 40.6 µg/L 2% of the EPA limit 2000 µg/L Highest in the ZIP: DUPO · 4,684 people · 2017 | 1/3 | SYR4 |
| Bromodichloromethane | 6.4899999999999975 µg/L No EPA limit set Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2019
Highest in the ZIP: 28.976 µg/L — DUPO · 4,684 people · 2019 | 3/3 | SYR4 |
| Lithium | 13.1 µg/L No EPA limit set Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2024
Highest in the ZIP: 28.2 µg/L — COLUMBIA · 11,129 people · 2025 | 3/3 | UCMR-5 |
| Dibromochloromethane | 3.0199999999999987 µg/L No EPA limit set Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2019
Highest in the ZIP: 23.454 µg/L — DUPO · 4,684 people · 2019 | 3/3 | SYR4 |
| Lead | 5 µg/L 33% of the EPA limit 15 µg/L Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2019
Highest in the ZIP: 23.249999999999986 µg/L — DUPO · 4,684 people · 2017 | 3/3 | SYR4 |
| Dichloroacetic Acid | 19.244999999999997 µg/L No EPA limit set Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2019
Highest in the ZIP: 20.140000000000004 µg/L — COLUMBIA · 11,129 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 9.444999999999999 µg/L No EPA limit set Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2019
Highest in the ZIP: 19.200000000000003 µg/L — COLUMBIA · 11,129 people · 2019 | 3/3 | SYR4 |
| Monochloroacetic Acid | 2.949999999999999 µg/L No EPA limit set Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2019
Highest in the ZIP: 17.2 µg/L — DUPO · 4,684 people · 2019 | 3/3 | SYR4 |
| Bromoform | 6.8655 µg/L No EPA limit set Highest in the ZIP: DUPO · 4,684 people · 2019 | 1/3 | SYR4 |
| Dibromoacetic Acid | 2.55 µg/L No EPA limit set Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2019
Highest in the ZIP: 5.370000000000001 µg/L — DUPO · 4,684 people · 2019 | 3/3 | SYR4 |
| Gross Beta Particle Activity | 4.4 pCi/L No EPA limit set Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2014 | 1/3 | SYR4 |
| Monobromoacetic Acid | 4.3 µg/L No EPA limit set Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2019 | 3/3 | SYR4 |
| Arsenic | 1.7999999999999998 µg/L 18% of the EPA limit 10 µg/L Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2019 | 1/3 | SYR4 |
| Atrazine | 1.2299999999999993 µg/L 41% of the EPA limit 3 µg/L Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2019 | 1/3 | SYR4 |
| Combined Radium (-226 And -228) | 0.9000 pCi/L 18% of the EPA limit 5 pCi/L Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2014
Highest in the ZIP: 0.9349 pCi/L — DUPO · 4,684 people · 2018 | 2/3 | SYR4 |
| Xylenes, Total | 0.7000 µg/L 0% of the EPA limit 10000 µg/L Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2019 | 1/3 | SYR4 |
| Pfba | 0.0181 µg/L No EPA limit set Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2024 | 2/3 | UCMR-5 |
| PFOS | 0.0056 µg/L No EPA limit set Highest in the ZIP: DUPO · 4,684 people · 2025 | 1/3 | UCMR-5 |
| Pfhxa | 0.0044 µg/L No EPA limit set Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2024 | 1/3 | UCMR-5 |
| Pfpea | 0.0042 µg/L No EPA limit set Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 people · 2024 | 1/3 | UCMR-5 |
| PFBS | 0.0037 µg/L No EPA limit set Highest in the ZIP: DUPO · 4,684 people · 2025 | 2/3 | UCMR-5 |
| PFHXS | 0.0031 µg/L No EPA limit set Highest in the ZIP: DUPO · 4,684 people · 2025 | 1/3 | UCMR-5 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L Main supplier: IL AMERICAN-EAST ST LOUIS · 131,368 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 62240
| Supplier | State | Population served |
|---|---|---|
| IL AMERICAN-EAST ST LOUIS | IL | 131,368 |
| COLUMBIA | IL | 11,129 |
| DUPO | IL | 4,684 |
Frequently asked questions about ZIP 62240 tap water
Is the tap water in ZIP 62240 safe to drink?
EPA testing detected 30 contaminants across the water suppliers serving ZIP 62240. 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 62240?
3 public water suppliers report EPA drinking-water monitoring for ZIP 62240. Each is listed above with its population served.
What contaminants are in ZIP 62240's water?
EPA monitoring detected Nitrate, Fluoride, Copper, Nitrate-Nitrite, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.