What was found in ZIP 38340
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 |
|---|---|---|---|
| Lithium | 72.9 µg/L No EPA limit set Main supplier: SELMER WATER SYSTEM · 20,648 people · 2024 | 1/2 | UCMR-5 |
| TTHM | 7.1275 µg/L 8.9% of the EPA limit 80 µg/L Main supplier: SELMER WATER SYSTEM · 20,648 people · 2019
Highest in the ZIP: 17.375 µg/L — HENDERSON WATER DEPT · 8,924 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 3.38 µg/L 5.6% of the EPA limit 60 µg/L Main supplier: SELMER WATER SYSTEM · 20,648 people · 2019
Highest in the ZIP: 5.22 µg/L — HENDERSON WATER DEPT · 8,924 people · 2019 | 2/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 1.8715 pCi/L 12% of the EPA limit 15 pCi/L Highest in the ZIP: HENDERSON WATER DEPT · 8,924 people · 2016 | 1/2 | SYR4 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: SELMER WATER SYSTEM · 20,648 people · 2025
Highest in the ZIP: 0.0013 mg/L — HENDERSON WATER DEPT · 8,924 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 38340
| Supplier | State | Population served |
|---|---|---|
| SELMER WATER SYSTEM | TN | 20,648 |
| HENDERSON WATER DEPT | TN | 8,924 |
Frequently asked questions about ZIP 38340 tap water
Is the tap water in ZIP 38340 safe to drink?
EPA testing detected 5 contaminants across the water suppliers serving ZIP 38340. 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 38340?
2 public water suppliers report EPA drinking-water monitoring for ZIP 38340. Each is listed above with its population served.
What contaminants are in ZIP 38340's water?
EPA monitoring detected Lithium, TTHM, Total Haloacetic Acids (HAA5), Gross Alpha, Excl. Radon And U, Lead across this ZIP's suppliers. The full list with levels and sources is above.