What was found in ZIP 37179
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 | 1020 µg/L 10% of the EPA limit 10000 µg/L Main supplier: SPRING HILL WATER DEPT · 65,840 people · 2019 | 1/2 | SYR4 |
| TTHM | 70.6 µg/L 88% of the EPA limit 80 µg/L Main supplier: SPRING HILL WATER DEPT · 65,840 people · 2019
Highest in the ZIP: 78.225 µg/L — H.B.& T.S. UTILITY DISTRICT · 40,094 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 47.85 µg/L 80% of the EPA limit 60 µg/L Main supplier: SPRING HILL WATER DEPT · 65,840 people · 2019 | 2/2 | SYR4 |
| Barium | 20.2 µg/L 1% of the EPA limit 2000 µg/L Main supplier: SPRING HILL WATER DEPT · 65,840 people · 2016 | 1/2 | SYR4 |
| 2,4-D | 0.4000 µg/L 0.6% of the EPA limit 70 µg/L Main supplier: SPRING HILL WATER DEPT · 65,840 people · 2019 | 1/2 | SYR4 |
| PFBS | 0.0094 µg/L No EPA limit set Main supplier: SPRING HILL WATER DEPT · 65,840 people · 2023 | 1/2 | UCMR-5 |
| PFOA | 0.0061 µg/L No EPA limit set Main supplier: SPRING HILL WATER DEPT · 65,840 people · 2023 | 1/2 | UCMR-5 |
| Pfpea | 0.0059 µg/L No EPA limit set Main supplier: SPRING HILL WATER DEPT · 65,840 people · 2023 | 1/2 | UCMR-5 |
| Pfhxa | 0.0054 µg/L No EPA limit set Main supplier: SPRING HILL WATER DEPT · 65,840 people · 2023 | 1/2 | UCMR-5 |
| Pfhpa | 0.0032 µg/L No EPA limit set Main supplier: SPRING HILL WATER DEPT · 65,840 people · 2023 | 1/2 | UCMR-5 |
| Lead | 0.00050 mg/L 3.3% of the EPA limit 0.0150 mg/L Main supplier: SPRING HILL WATER DEPT · 65,840 people · 2025
Highest in the ZIP: 0.0010 mg/L — H.B.& T.S. UTILITY DISTRICT · 40,094 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 37179
| Supplier | State | Population served |
|---|---|---|
| SPRING HILL WATER DEPT | TN | 65,840 |
| H.B.& T.S. UTILITY DISTRICT | TN | 40,094 |
Frequently asked questions about ZIP 37179 tap water
Is the tap water in ZIP 37179 safe to drink?
EPA testing detected 11 contaminants across the water suppliers serving ZIP 37179. 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 37179?
2 public water suppliers report EPA drinking-water monitoring for ZIP 37179. Each is listed above with its population served.
What contaminants are in ZIP 37179's water?
EPA monitoring detected Nitrate, TTHM, Total Haloacetic Acids (HAA5), Barium, 2,4-D, and others across this ZIP's suppliers. The full list with levels and sources is above.