What was found in ZIP 37122
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 |
|---|---|---|---|
| Fluoride | 738.2 µg/L 18% of the EPA limit 4000 µg/L Main supplier: METRO WATER SERVICES · 778,153 people · 2019 | 1/4 | SYR4 |
| Nitrate | 520.2 µg/L 5.2% of the EPA limit 10000 µg/L Main supplier: METRO WATER SERVICES · 778,153 people · 2019
Highest in the ZIP: 646 µg/L — GLADEVILLE UTILITY DISTRICT · 19,813 people · 2019 | 3/4 | SYR4 |
| Copper | 526.35 µg/L 40% of the EPA limit 1300 µg/L Highest in the ZIP: CHRISTIAN CO WATER DISTRICT · 17,248 people · 2018 | 1/4 | SYR4 |
| TTHM | 59.96 µg/L 75% of the EPA limit 80 µg/L Main supplier: METRO WATER SERVICES · 778,153 people · 2019
Highest in the ZIP: 74.1 µg/L — CHRISTIAN CO WATER DISTRICT · 17,248 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 56.965 µg/L 95% of the EPA limit 60 µg/L Main supplier: METRO WATER SERVICES · 778,153 people · 2019
Highest in the ZIP: 65.1 µg/L — CHRISTIAN CO WATER DISTRICT · 17,248 people · 2019 | 4/4 | SYR4 |
| Lead | 18.8 µg/L 125% of the EPA limit, at the 95th percentile of samples — 15 µg/L Highest in the ZIP: CHRISTIAN CO WATER DISTRICT · 17,248 people · 2018 | 1/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2.6 pCi/L 17% of the EPA limit 15 pCi/L Highest in the ZIP: GLADEVILLE UTILITY DISTRICT · 19,813 people · 2014 | 1/4 | SYR4 |
| 2,4-D | 0.1933 µg/L 0.3% of the EPA limit 70 µg/L Main supplier: METRO WATER SERVICES · 778,153 people · 2019 | 1/4 | SYR4 |
| Lead | 0.00080 mg/L 5.3% of the EPA limit 0.0150 mg/L Main supplier: METRO WATER SERVICES · 778,153 people · 2025
Highest in the ZIP: 0.0075 mg/L — GLADEVILLE UTILITY DISTRICT · 19,813 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 37122
| Supplier | State | Population served |
|---|---|---|
| METRO WATER SERVICES | 778,153 | |
| WEST WILSON UTILITY DISTRICT | TN | 86,978 |
| GLADEVILLE UTILITY DISTRICT | TN | 19,813 |
| CHRISTIAN CO WATER DISTRICT | KY | 17,248 |
Frequently asked questions about ZIP 37122 tap water
Is the tap water in ZIP 37122 safe to drink?
EPA testing detected 9 contaminants across the water suppliers serving ZIP 37122. 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 37122?
4 public water suppliers report EPA drinking-water monitoring for ZIP 37122. Each is listed above with its population served.
What contaminants are in ZIP 37122's water?
EPA monitoring detected Fluoride, Nitrate, Copper, TTHM, Total Haloacetic Acids (HAA5), and others across this ZIP's suppliers. The full list with levels and sources is above.