What was found in ZIP 37091
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 | 820 µg/L 8.2% of the EPA limit 10000 µg/L Main supplier: LEWISBURG WATER SYSTEM · 24,569 people · 2019 | 1/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 56.825 µg/L 95% of the EPA limit 60 µg/L Main supplier: LEWISBURG WATER SYSTEM · 24,569 people · 2019
Highest in the ZIP: 71.305 µg/L — MARSHALL CO B.P.U. #1 · 13,257 people · 2019 | 2/2 | SYR4 |
| TTHM | 61.3 µg/L 77% of the EPA limit 80 µg/L Main supplier: LEWISBURG WATER SYSTEM · 24,569 people · 2019
Highest in the ZIP: 69.485 µg/L — MARSHALL CO B.P.U. #1 · 13,257 people · 2019 | 2/2 | SYR4 |
| Barium | 24.085 µg/L 1.2% of the EPA limit 2000 µg/L Main supplier: LEWISBURG WATER SYSTEM · 24,569 people · 2018 | 1/2 | SYR4 |
| Atrazine | 1.296 µg/L 43% of the EPA limit 3 µg/L Main supplier: LEWISBURG WATER SYSTEM · 24,569 people · 2019 | 1/2 | SYR4 |
| Arsenic | 1.11 µg/L 11% of the EPA limit 10 µg/L Main supplier: LEWISBURG WATER SYSTEM · 24,569 people · 2018 | 1/2 | SYR4 |
| 2,4-D | 0.2000 µg/L 0.3% of the EPA limit 70 µg/L Main supplier: LEWISBURG WATER SYSTEM · 24,569 people · 2019 | 1/2 | SYR4 |
| PFBS | 0.0092 µg/L No EPA limit set Main supplier: LEWISBURG WATER SYSTEM · 24,569 people · 2024
Highest in the ZIP: 0.0340 µg/L — MARSHALL CO B.P.U. #1 · 13,257 people · 2024 | 2/2 | UCMR-5 |
| Pfhxa | 0.0055 µg/L No EPA limit set Main supplier: LEWISBURG WATER SYSTEM · 24,569 people · 2024
Highest in the ZIP: 0.0270 µg/L — MARSHALL CO B.P.U. #1 · 13,257 people · 2024 | 2/2 | UCMR-5 |
| Pfpea | 0.0047 µg/L No EPA limit set Main supplier: LEWISBURG WATER SYSTEM · 24,569 people · 2024
Highest in the ZIP: 0.0200 µg/L — MARSHALL CO B.P.U. #1 · 13,257 people · 2024 | 2/2 | UCMR-5 |
| Pfba | 0.0065 µg/L No EPA limit set Main supplier: LEWISBURG WATER SYSTEM · 24,569 people · 2024
Highest in the ZIP: 0.0130 µg/L — MARSHALL CO B.P.U. #1 · 13,257 people · 2024 | 2/2 | UCMR-5 |
| PFOA | 0.0088 µg/L No EPA limit set Main supplier: LEWISBURG WATER SYSTEM · 24,569 people · 2024
Highest in the ZIP: 0.0110 µg/L — MARSHALL CO B.P.U. #1 · 13,257 people · 2024 | 2/2 | UCMR-5 |
| PFOS | 0.0053 µg/L No EPA limit set Main supplier: LEWISBURG WATER SYSTEM · 24,569 people · 2024 | 2/2 | 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 | 1/2 | UCMR-5 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: LEWISBURG WATER SYSTEM · 24,569 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 37091
| Supplier | State | Population served |
|---|---|---|
| LEWISBURG WATER SYSTEM | TN | 24,569 |
| MARSHALL CO B.P.U. #1 | TN | 13,257 |
Frequently asked questions about ZIP 37091 tap water
Is the tap water in ZIP 37091 safe to drink?
EPA testing detected 15 contaminants across the water suppliers serving ZIP 37091. 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 37091?
2 public water suppliers report EPA drinking-water monitoring for ZIP 37091. Each is listed above with its population served.
What contaminants are in ZIP 37091's water?
EPA monitoring detected Nitrate, Total Haloacetic Acids (HAA5), TTHM, Barium, Atrazine, and others across this ZIP's suppliers. The full list with levels and sources is above.