What was found in ZIP 38401
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 | 631 µg/L 6.3% of the EPA limit 10000 µg/L Main supplier: COLUMBIA POWER AND WATER SYSTEMS · 84,617 people · 2019
Highest in the ZIP: 820 µg/L — LEWISBURG WATER SYSTEM · 24,569 people · 2019 | 2/3 | SYR4 |
| TTHM | 67.375 µg/L 84% of the EPA limit 80 µg/L Main supplier: COLUMBIA POWER AND WATER SYSTEMS · 84,617 people · 2019
Highest in the ZIP: 79.26 µg/L — MAURY CO WATER SYSTEM · 24,488 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 49.135 µg/L 82% of the EPA limit 60 µg/L Main supplier: COLUMBIA POWER AND WATER SYSTEMS · 84,617 people · 2019
Highest in the ZIP: 57.86 µg/L — MAURY CO WATER SYSTEM · 24,488 people · 2019 | 3/3 | SYR4 |
| Barium | 22.93 µg/L 1.1% of the EPA limit 2000 µg/L Main supplier: COLUMBIA POWER AND WATER SYSTEMS · 84,617 people · 2017
Highest in the ZIP: 24.085 µg/L — LEWISBURG WATER SYSTEM · 24,569 people · 2018 | 2/3 | SYR4 |
| Atrazine | 1.4 µg/L 47% of the EPA limit 3 µg/L Main supplier: COLUMBIA POWER AND WATER SYSTEMS · 84,617 people · 2019 | 2/3 | SYR4 |
| Arsenic | 1.11 µg/L 11% of the EPA limit 10 µg/L Highest in the ZIP: LEWISBURG WATER SYSTEM · 24,569 people · 2018 | 1/3 | SYR4 |
| 2,4-D | 0.2000 µg/L 0.3% of the EPA limit 70 µg/L Highest in the ZIP: LEWISBURG WATER SYSTEM · 24,569 people · 2019 | 1/3 | SYR4 |
| PFBS | 0.0092 µg/L No EPA limit set Highest in the ZIP: LEWISBURG WATER SYSTEM · 24,569 people · 2024 | 2/3 | UCMR-5 |
| PFOA | 0.0088 µg/L No EPA limit set Highest in the ZIP: LEWISBURG WATER SYSTEM · 24,569 people · 2024 | 2/3 | UCMR-5 |
| Pfba | 0.0065 µg/L No EPA limit set Highest in the ZIP: LEWISBURG WATER SYSTEM · 24,569 people · 2024 | 1/3 | UCMR-5 |
| Pfhxa | 0.0032 µg/L No EPA limit set Main supplier: COLUMBIA POWER AND WATER SYSTEMS · 84,617 people · 2024
Highest in the ZIP: 0.0060 µg/L — MAURY CO WATER SYSTEM · 24,488 people · 2024 | 3/3 | UCMR-5 |
| Pfpea | 0.0058 µg/L No EPA limit set Highest in the ZIP: MAURY CO WATER SYSTEM · 24,488 people · 2024 | 2/3 | UCMR-5 |
| PFOS | 0.0053 µg/L No EPA limit set Highest in the ZIP: LEWISBURG WATER SYSTEM · 24,569 people · 2024 | 2/3 | UCMR-5 |
| Pfhpa | 0.0038 µg/L No EPA limit set Highest in the ZIP: MAURY CO WATER SYSTEM · 24,488 people · 2024 | 1/3 | UCMR-5 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: COLUMBIA POWER AND WATER SYSTEMS · 84,617 people · 2025 | 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 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 38401
| Supplier | State | Population served |
|---|---|---|
| COLUMBIA POWER AND WATER SYSTEMS | TN | 84,617 |
| LEWISBURG WATER SYSTEM | TN | 24,569 |
| MAURY CO WATER SYSTEM | TN | 24,488 |
Frequently asked questions about ZIP 38401 tap water
Is the tap water in ZIP 38401 safe to drink?
EPA testing detected 15 contaminants across the water suppliers serving ZIP 38401. 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 38401?
3 public water suppliers report EPA drinking-water monitoring for ZIP 38401. Each is listed above with its population served.
What contaminants are in ZIP 38401's water?
EPA monitoring detected Nitrate, TTHM, Total Haloacetic Acids (HAA5), Barium, Atrazine, and others across this ZIP's suppliers. The full list with levels and sources is above.