What was found in ZIP 37660
The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Fluoride | 1100 µg/L 28% of the EPA limit 4000 µg/L | 1/3 | SYR4 |
| Nitrate | 964 µg/L 9.6% of the EPA limit 10000 µg/L | 3/3 | SYR4 |
| Nitrate-Nitrite | 570 µg/L 5.7% of the EPA limit 10000 µg/L | 1/3 | SYR4 |
| TTHM | 90.4 µg/L 113% of the EPA limit, in the worst sample — 80 µg/L | 3/3 | SYR4 |
| Lithium | 76.6 µg/L No EPA limit set | 1/3 | UCMR-5 |
| Barium | 62 µg/L 3.1% of the EPA limit 2000 µg/L | 1/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 58.3 µg/L 97% of the EPA limit 60 µg/L | 3/3 | SYR4 |
| Copper | 1.2 µg/L 0.1% of the EPA limit 1300 µg/L | 1/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 0.8950 pCi/L 6% of the EPA limit 15 pCi/L | 2/3 | SYR4 |
| PFOS | 0.0059 µg/L No EPA limit set | 2/3 | UCMR-5 |
| Lead | 0.0013 mg/L 8.7% of the EPA limit 0.0150 mg/L | 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 single worst sample on
record — over 100% is worth reading, but is not by itself a violation.
Formal violations are listed separately.
Water suppliers serving ZIP 37660
| Supplier | State | Population served |
|---|---|---|
| KINGSPORT WATER DEPT | TN | 107,739 |
| JOHNSON CITY WATER DEPT | TN | 105,057 |
| BLOOMINGDALE UTILITY DISTRICT | TN | 13,318 |
Frequently asked questions about ZIP 37660 tap water
Is the tap water in ZIP 37660 safe to drink?
EPA testing detected 11 contaminants across the water suppliers serving ZIP 37660. 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 37660?
3 public water suppliers report EPA drinking-water monitoring for ZIP 37660. Each is listed above with its population served.
What contaminants are in ZIP 37660's water?
EPA monitoring detected Fluoride, Nitrate, Nitrate-Nitrite, TTHM, Lithium, and others across this ZIP's suppliers. The full list with levels and sources is above.