What was found in ZIP 37377
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 |
|---|---|---|---|
| TTHM | 56.964999999999996 µg/L 71% of the EPA limit 80 µg/L Main supplier: WALDEN'S RIDGE U.D. · 9,265 people · 2019
Highest in the ZIP: 77.85499999999999 µg/L — SIGNAL MOUNTAIN WATER SYSTEM · 7,761 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 29.959999999999994 µg/L 50% of the EPA limit 60 µg/L Main supplier: WALDEN'S RIDGE U.D. · 9,265 people · 2019
Highest in the ZIP: 40.93 µg/L — SIGNAL MOUNTAIN WATER SYSTEM · 7,761 people · 2019 | 2/2 | SYR4 |
| PFBS | 0.0051 µg/L No EPA limit set Main supplier: WALDEN'S RIDGE U.D. · 9,265 people · 2024
Highest in the ZIP: 0.0110 µg/L — SIGNAL MOUNTAIN WATER SYSTEM · 7,761 people · 2024 | 2/2 | UCMR-5 |
| Pfba | 0.0091 µg/L No EPA limit set Highest in the ZIP: SIGNAL MOUNTAIN WATER SYSTEM · 7,761 people · 2024 | 1/2 | UCMR-5 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: WALDEN'S RIDGE U.D. · 9,265 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 37377
| Supplier | State | Population served |
|---|---|---|
| WALDEN'S RIDGE U.D. | TN | 9,265 |
| SIGNAL MOUNTAIN WATER SYSTEM | TN | 7,761 |
Frequently asked questions about ZIP 37377 tap water
Is the tap water in ZIP 37377 safe to drink?
EPA testing detected 5 contaminants across the water suppliers serving ZIP 37377. 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 37377?
2 public water suppliers report EPA drinking-water monitoring for ZIP 37377. Each is listed above with its population served.
What contaminants are in ZIP 37377's water?
EPA monitoring detected TTHM, Total Haloacetic Acids (HAA5), PFBS, Pfba, Lead across this ZIP's suppliers. The full list with levels and sources is above.