What was found in ZIP 37040
The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 548 µg/L 5.5% of the EPA limit 10000 µg/L | 1/3 | SYR4 |
| TTHM | 105 µg/L 131% of the EPA limit, in the worst sample — 80 µg/L | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 64.2 µg/L 107% of the EPA limit, in the worst sample — 60 µg/L | 3/3 | SYR4 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L | 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 single worst sample on
record — over 100% is worth reading, but is not by itself a violation.
Formal violations are listed separately.
Water suppliers serving ZIP 37040
| Supplier | State | Population served |
|---|---|---|
| CLARKSVILLE WATER DEPARTMENT | TN | 251,864 |
| CUNNINGHAM UTILITY DISTRICT | TN | 16,068 |
| CUMBERLAND HEIGHTS U.D. | TN | 3,623 |
Frequently asked questions about ZIP 37040 tap water
Is the tap water in ZIP 37040 safe to drink?
EPA testing detected 4 contaminants across the water suppliers serving ZIP 37040. 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 37040?
3 public water suppliers report EPA drinking-water monitoring for ZIP 37040. Each is listed above with its population served.
What contaminants are in ZIP 37040's water?
EPA monitoring detected Nitrate, TTHM, Total Haloacetic Acids (HAA5), Lead across this ZIP's suppliers. The full list with levels and sources is above.