What was found in ZIP 37857
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 | 781 µg/L 7.8% of the EPA limit 10000 µg/L Main supplier: KINGSPORT WATER DEPT · 107,739 people · 2019
Highest in the ZIP: 1740 µg/L — LAKEVIEW U.D. WEST · 2,684 people · 2019 | 4/4 | SYR4 |
| Fluoride | 258 µg/L 6.5% of the EPA limit 4000 µg/L Highest in the ZIP: ROGERSVILLE WATER DEPT · 13,729 people · 2018 | 1/4 | SYR4 |
| Nitrate-Nitrite | 197.2 µg/L 2% of the EPA limit 10000 µg/L Highest in the ZIP: LAKEVIEW U.D. WEST · 2,684 people · 2019 | 1/4 | SYR4 |
| TTHM | 63.12999999999999 µg/L 79% of the EPA limit 80 µg/L Main supplier: KINGSPORT WATER DEPT · 107,739 people · 2019
Highest in the ZIP: 120.79999999999998 µg/L — ROGERSVILLE WATER DEPT · 13,729 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 51.57999999999999 µg/L 86% of the EPA limit 60 µg/L Main supplier: KINGSPORT WATER DEPT · 107,739 people · 2019
Highest in the ZIP: 99.56999999999992 µg/L — ROGERSVILLE WATER DEPT · 13,729 people · 2019 | 4/4 | SYR4 |
| Lithium | 76.6 µg/L No EPA limit set Main supplier: KINGSPORT WATER DEPT · 107,739 people · 2023 | 3/4 | UCMR-5 |
| Barium | 62.81 µg/L 3.1% of the EPA limit 2000 µg/L Highest in the ZIP: ROGERSVILLE WATER DEPT · 13,729 people · 2018 | 2/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 7.208 pCi/L 48% of the EPA limit 15 pCi/L Highest in the ZIP: ROGERSVILLE WATER DEPT · 13,729 people · 2018 | 3/4 | SYR4 |
| Arsenic | 2.22 µg/L 22% of the EPA limit 10 µg/L Highest in the ZIP: LAKEVIEW U.D. WEST · 2,684 people · 2016 | 2/4 | SYR4 |
| Antimony, Total | 2.11 µg/L 35% of the EPA limit 6 µg/L Highest in the ZIP: ROGERSVILLE WATER DEPT · 13,729 people · 2018 | 1/4 | SYR4 |
| Selenium | 0.5920 µg/L 1.2% of the EPA limit 50 µg/L Highest in the ZIP: LAKEVIEW U.D. WEST · 2,684 people · 2016 | 2/4 | SYR4 |
| Chromium | 0.2940 µg/L 0.3% of the EPA limit 100 µg/L Highest in the ZIP: ROGERSVILLE WATER DEPT · 13,729 people · 2018 | 1/4 | SYR4 |
| Pfba | 0.0130 µg/L No EPA limit set Highest in the ZIP: PERSIA UTILITY DISTRICT · 4,966 people · 2025 | 1/4 | UCMR-5 |
| PFOS | 0.0059 µg/L No EPA limit set Main supplier: KINGSPORT WATER DEPT · 107,739 people · 2023 | 1/4 | UCMR-5 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: KINGSPORT WATER DEPT · 107,739 people · 2025
Highest in the ZIP: 0.0010 mg/L — LAKEVIEW U.D. WEST · 2,684 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 37857
| Supplier | State | Population served |
|---|---|---|
| KINGSPORT WATER DEPT | TN | 107,739 |
| ROGERSVILLE WATER DEPT | TN | 13,729 |
| PERSIA UTILITY DISTRICT | TN | 4,966 |
| LAKEVIEW U.D. WEST | TN | 2,684 |
Frequently asked questions about ZIP 37857 tap water
Is the tap water in ZIP 37857 safe to drink?
EPA testing detected 15 contaminants across the water suppliers serving ZIP 37857. 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 37857?
4 public water suppliers report EPA drinking-water monitoring for ZIP 37857. Each is listed above with its population served.
What contaminants are in ZIP 37857's water?
EPA monitoring detected Nitrate, Fluoride, Nitrate-Nitrite, TTHM, Total Haloacetic Acids (HAA5), and others across this ZIP's suppliers. The full list with levels and sources is above.