What was found in ZIP 37902
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 | 742.5 µg/L 19% of the EPA limit 4000 µg/L Main supplier: KNOXVILLE UTILITIES BOARD - KUB · 254,671 people · 2019 | 1/2 | SYR4 |
| Nitrate | 670 µg/L 6.7% of the EPA limit 10000 µg/L Main supplier: KNOXVILLE UTILITIES BOARD - KUB · 254,671 people · 2019 | 1/2 | SYR4 |
| Nitrate-Nitrite | 637.5 µg/L 6.4% of the EPA limit 10000 µg/L Main supplier: KNOXVILLE UTILITIES BOARD - KUB · 254,671 people · 2019 | 1/2 | SYR4 |
| Copper | 12.6 µg/L 1% of the EPA limit 1300 µg/L Main supplier: KNOXVILLE UTILITIES BOARD - KUB · 254,671 people · 2019
Highest in the ZIP: 335.75 µg/L — CORINTH PWD · 3,927 people · 2019 | 2/2 | SYR4 |
| TTHM | 72.595 µg/L 91% of the EPA limit 80 µg/L Main supplier: KNOXVILLE UTILITIES BOARD - KUB · 254,671 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 49.68 µg/L 83% of the EPA limit 60 µg/L Main supplier: KNOXVILLE UTILITIES BOARD - KUB · 254,671 people · 2019 | 2/2 | SYR4 |
| Chloroform | 41.87 µg/L No EPA limit set Highest in the ZIP: CORINTH PWD · 3,927 people · 2019 | 1/2 | SYR4 |
| Barium | 28 µg/L 1.4% of the EPA limit 2000 µg/L Main supplier: KNOXVILLE UTILITIES BOARD - KUB · 254,671 people · 2019 | 1/2 | SYR4 |
| Dichloroacetic Acid | 20.16 µg/L No EPA limit set Highest in the ZIP: CORINTH PWD · 3,927 people · 2019 | 1/2 | SYR4 |
| Bromodichloromethane | 10.5 µg/L No EPA limit set Highest in the ZIP: CORINTH PWD · 3,927 people · 2019 | 1/2 | SYR4 |
| Lead | 8.016 µg/L 53% of the EPA limit 15 µg/L Highest in the ZIP: CORINTH PWD · 3,927 people · 2019 | 1/2 | SYR4 |
| Trichloroacetic Acid | 4.2 µg/L No EPA limit set Highest in the ZIP: CORINTH PWD · 3,927 people · 2019 | 1/2 | SYR4 |
| Dibromochloromethane | 3.785 µg/L No EPA limit set Highest in the ZIP: CORINTH PWD · 3,927 people · 2019 | 1/2 | SYR4 |
| Monochloroacetic Acid | 2.94 µg/L No EPA limit set Highest in the ZIP: CORINTH PWD · 3,927 people · 2019 | 1/2 | SYR4 |
| Dibromoacetic Acid | 1.58 µg/L No EPA limit set Highest in the ZIP: CORINTH PWD · 3,927 people · 2019 | 1/2 | SYR4 |
| Pfba | 0.0056 µg/L No EPA limit set Highest in the ZIP: CORINTH PWD · 3,927 people · 2023 | 1/2 | UCMR-5 |
| Lead | 0.00060 mg/L 4% of the EPA limit 0.0150 mg/L Main supplier: KNOXVILLE UTILITIES BOARD - KUB · 254,671 people · 2025
Highest in the ZIP: 0.0046 mg/L — CORINTH PWD · 3,927 people · 2025 | 2/2 | LCR |
| PFBS | 0.0037 µg/L No EPA limit set Main supplier: KNOXVILLE UTILITIES BOARD - KUB · 254,671 people · 2024 | 1/2 | UCMR-5 |
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 37902
| Supplier | State | Population served |
|---|---|---|
| KNOXVILLE UTILITIES BOARD - KUB | TN | 254,671 |
| CORINTH PWD | IL | 3,927 |
Frequently asked questions about ZIP 37902 tap water
Is the tap water in ZIP 37902 safe to drink?
EPA testing detected 18 contaminants across the water suppliers serving ZIP 37902. 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 37902?
2 public water suppliers report EPA drinking-water monitoring for ZIP 37902. Each is listed above with its population served.
What contaminants are in ZIP 37902's water?
EPA monitoring detected Fluoride, Nitrate, Nitrate-Nitrite, Copper, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.