What was found in ZIP 03431
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 |
|---|---|---|---|
| Copper | 23000 µg/L 1769% of the EPA limit, in the worst sample — 1300 µg/L | 1/1 | SYR4 |
| Nitrate | 3700 µg/L 37% of the EPA limit 10000 µg/L | 1/1 | SYR4 |
| Lead | 280 µg/L 1867% of the EPA limit, in the worst sample — 15 µg/L | 1/1 | SYR4 |
| TTHM | 76.9 µg/L 96% of the EPA limit 80 µg/L | 1/1 | SYR4 |
| Chloroform | 70.5 µg/L No EPA limit set | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 58.7 µg/L 98% of the EPA limit 60 µg/L | 1/1 | SYR4 |
| Trichloroacetic Acid | 34.5 µg/L No EPA limit set | 1/1 | SYR4 |
| Dichloroacetic Acid | 25.3 µg/L No EPA limit set | 1/1 | SYR4 |
| Bromodichloromethane | 6.4 µg/L No EPA limit set | 1/1 | SYR4 |
| Dibromochloromethane | 3.3 µg/L No EPA limit set | 1/1 | SYR4 |
| Bromoform | 0.5000 µg/L No EPA limit set | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 0.1000 pCi/L 0.7% of the EPA limit 15 pCi/L | 1/1 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 1/1 | 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 03431
| Supplier | State | Population served |
|---|---|---|
| KEENE WATER DEPT | NH | 30,000 |
Frequently asked questions about ZIP 03431 tap water
Is the tap water in ZIP 03431 safe to drink?
EPA testing detected 13 contaminants across the water suppliers serving ZIP 03431. 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 03431?
1 public water supplier report EPA drinking-water monitoring for ZIP 03431. Each is listed above with its population served.
What contaminants are in ZIP 03431's water?
EPA monitoring detected Copper, Nitrate, Lead, TTHM, Chloroform, and others across this ZIP's suppliers. The full list with levels and sources is above.