What was found in ZIP 61938
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 | 6700 µg/L 67% of the EPA limit 10000 µg/L Main supplier: MATTOON · 19,500 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 5290 µg/L 53% of the EPA limit 10000 µg/L Main supplier: MATTOON · 19,500 people · 2018 | 1/2 | SYR4 |
| Fluoride | 1034.8 µg/L 26% of the EPA limit 4000 µg/L Main supplier: MATTOON · 19,500 people · 2019 | 2/2 | SYR4 |
| Copper | 91.55 µg/L 7% of the EPA limit 1300 µg/L Main supplier: MATTOON · 19,500 people · 2017
Highest in the ZIP: 172.5 µg/L — CLEAR WATER SERVICE CORP · 8,900 people · 2017 | 2/2 | SYR4 |
| TTHM | 80.7 µg/L 101% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: MATTOON · 19,500 people · 2019 | 2/2 | SYR4 |
| Chloroform | 72.21 µg/L No EPA limit set Main supplier: MATTOON · 19,500 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 37.725 µg/L 63% of the EPA limit 60 µg/L Main supplier: MATTOON · 19,500 people · 2019 | 2/2 | SYR4 |
| Lead | 32.36 µg/L 216% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: MATTOON · 19,500 people · 2017 | 2/2 | SYR4 |
| Dichloroacetic Acid | 28.44 µg/L No EPA limit set Main supplier: MATTOON · 19,500 people · 2019 | 2/2 | SYR4 |
| Barium | 26.55 µg/L 1.3% of the EPA limit 2000 µg/L Main supplier: MATTOON · 19,500 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 8.175 µg/L No EPA limit set Main supplier: MATTOON · 19,500 people · 2019
Highest in the ZIP: 11.82 µg/L — CLEAR WATER SERVICE CORP · 8,900 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 8.7896 µg/L No EPA limit set Main supplier: MATTOON · 19,500 people · 2019
Highest in the ZIP: 11.294 µg/L — CLEAR WATER SERVICE CORP · 8,900 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 11.25 µg/L No EPA limit set Main supplier: MATTOON · 19,500 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 5.543 µg/L No EPA limit set Main supplier: MATTOON · 19,500 people · 2019
Highest in the ZIP: 5.67 µg/L — CLEAR WATER SERVICE CORP · 8,900 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 3.4681 µg/L No EPA limit set Main supplier: MATTOON · 19,500 people · 2019
Highest in the ZIP: 4.5728 µg/L — CLEAR WATER SERVICE CORP · 8,900 people · 2019 | 2/2 | SYR4 |
| Chromium | 4.1 µg/L 4.1% of the EPA limit 100 µg/L Highest in the ZIP: CLEAR WATER SERVICE CORP · 8,900 people · 2018 | 1/2 | SYR4 |
| Arsenic | 1.59 µg/L 16% of the EPA limit 10 µg/L Main supplier: MATTOON · 19,500 people · 2019 | 1/2 | SYR4 |
| Atrazine | 1.44 µg/L 48% of the EPA limit 3 µg/L Main supplier: MATTOON · 19,500 people · 2019 | 1/2 | SYR4 |
| Dibromoacetic Acid | 1 µg/L No EPA limit set Main supplier: MATTOON · 19,500 people · 2019
Highest in the ZIP: 1.39 µg/L — CLEAR WATER SERVICE CORP · 8,900 people · 2019 | 2/2 | SYR4 |
| Simazine | 1.27 µg/L 32% of the EPA limit 4 µg/L Main supplier: MATTOON · 19,500 people · 2019 | 1/2 | SYR4 |
| Bromoform | 1.07 µg/L No EPA limit set Highest in the ZIP: CLEAR WATER SERVICE CORP · 8,900 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 0.7380 pCi/L 15% of the EPA limit 5 pCi/L Main supplier: MATTOON · 19,500 people · 2014
Highest in the ZIP: 0.8100 pCi/L — CLEAR WATER SERVICE CORP · 8,900 people · 2016 | 2/2 | SYR4 |
| Pfba | 0.0067 µg/L No EPA limit set Main supplier: MATTOON · 19,500 people · 2025 | 1/2 | UCMR-5 |
| Lead | 0.0036 mg/L 24% of the EPA limit 0.0150 mg/L Main supplier: MATTOON · 19,500 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 61938
| Supplier | State | Population served |
|---|---|---|
| MATTOON | IL | 19,500 |
| CLEAR WATER SERVICE CORP | 8,900 |
Frequently asked questions about ZIP 61938 tap water
Is the tap water in ZIP 61938 safe to drink?
EPA testing detected 24 contaminants across the water suppliers serving ZIP 61938. 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 61938?
2 public water suppliers report EPA drinking-water monitoring for ZIP 61938. Each is listed above with its population served.
What contaminants are in ZIP 61938's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Copper, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.