What was found in ZIP 38451
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 | 2/4 | 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: 99.965 µg/L — FAIRVIEW UTILITY DISTRICT · 7,036 people · 2019 | 4/4 | 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: 90.455 µg/L — FAIRVIEW UTILITY DISTRICT · 7,036 people · 2019 | 4/4 | 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 | 2/4 | 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 | 2/4 | 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 | 1/4 | 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 | 1/4 | SYR4 |
| PFBS | 0.0340 µg/L No EPA limit set Highest in the ZIP: MARSHALL CO B.P.U. #1 · 13,257 people · 2024 | 3/4 | 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: 0.0270 µg/L — MARSHALL CO B.P.U. #1 · 13,257 people · 2024 | 3/4 | UCMR-5 |
| Pfpea | 0.0200 µg/L No EPA limit set Highest in the ZIP: MARSHALL CO B.P.U. #1 · 13,257 people · 2024 | 2/4 | UCMR-5 |
| Pfba | 0.0130 µg/L No EPA limit set Highest in the ZIP: MARSHALL CO B.P.U. #1 · 13,257 people · 2024 | 2/4 | UCMR-5 |
| PFOA | 0.0110 µg/L No EPA limit set Highest in the ZIP: MARSHALL CO B.P.U. #1 · 13,257 people · 2024 | 2/4 | UCMR-5 |
| PFOS | 0.0062 µg/L No EPA limit set Highest in the ZIP: FAIRVIEW UTILITY DISTRICT · 7,036 people · 2024 | 3/4 | UCMR-5 |
| Pfhpa | 0.0038 µg/L No EPA limit set Highest in the ZIP: MARSHALL CO B.P.U. #1 · 13,257 people · 2024 | 1/4 | 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 | 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 38451
| Supplier | State | Population served |
|---|---|---|
| COLUMBIA POWER AND WATER SYSTEMS | TN | 84,617 |
| LEWISBURG WATER SYSTEM | TN | 24,569 |
| MARSHALL CO B.P.U. #1 | TN | 13,257 |
| FAIRVIEW UTILITY DISTRICT | TN | 7,036 |
Frequently asked questions about ZIP 38451 tap water
Is the tap water in ZIP 38451 safe to drink?
EPA testing detected 15 contaminants across the water suppliers serving ZIP 38451. 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 38451?
4 public water suppliers report EPA drinking-water monitoring for ZIP 38451. Each is listed above with its population served.
What contaminants are in ZIP 38451'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.