What was found in ZIP 14131
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 |
|---|---|---|---|
| TTHM | 68.48849999999999 µg/L 86% of the EPA limit 80 µg/L Main supplier: LEWISTON WATER IMPROVEMENTAREA · 16,257 people · 2019
Highest in the ZIP: 70.14999999999999 µg/L — PORTER MASTER IMPROVEMENT AREA · 6,920 people · 2019 | 4/4 | SYR4 |
| Chloroform | 46.7225 µg/L No EPA limit set Main supplier: LEWISTON WATER IMPROVEMENTAREA · 16,257 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 36.14 µg/L 60% of the EPA limit 60 µg/L Main supplier: LEWISTON WATER IMPROVEMENTAREA · 16,257 people · 2019
Highest in the ZIP: 37.919999999999995 µg/L — CAMBRIA WATER DISTRICT · 5,839 people · 2019 | 4/4 | SYR4 |
| Dichloroacetic Acid | 21.4545 µg/L No EPA limit set Main supplier: LEWISTON WATER IMPROVEMENTAREA · 16,257 people · 2019
Highest in the ZIP: 24.355999999999998 µg/L — PORTER MASTER IMPROVEMENT AREA · 6,920 people · 2019 | 4/4 | SYR4 |
| Trichloroacetic Acid | 16.399999999999995 µg/L No EPA limit set Main supplier: LEWISTON WATER IMPROVEMENTAREA · 16,257 people · 2019
Highest in the ZIP: 16.994999999999997 µg/L — PORTER MASTER IMPROVEMENT AREA · 6,920 people · 2019 | 4/4 | SYR4 |
| Bromodichloromethane | 15.783 µg/L No EPA limit set Main supplier: LEWISTON WATER IMPROVEMENTAREA · 16,257 people · 2019
Highest in the ZIP: 16.785 µg/L — WILSON TOWN WATER DISTRICT · 5,993 people · 2019 | 4/4 | SYR4 |
| Monochloroacetic Acid | 6.018999999999999 µg/L No EPA limit set Main supplier: LEWISTON WATER IMPROVEMENTAREA · 16,257 people · 2019
Highest in the ZIP: 7.535 µg/L — CAMBRIA WATER DISTRICT · 5,839 people · 2019 | 4/4 | SYR4 |
| Dibromochloromethane | 6.4715 µg/L No EPA limit set Main supplier: LEWISTON WATER IMPROVEMENTAREA · 16,257 people · 2019
Highest in the ZIP: 6.7669999999999995 µg/L — PORTER MASTER IMPROVEMENT AREA · 6,920 people · 2019 | 4/4 | SYR4 |
| Dibromoacetic Acid | 2.3779999999999997 µg/L No EPA limit set Main supplier: LEWISTON WATER IMPROVEMENTAREA · 16,257 people · 2019
Highest in the ZIP: 2.735 µg/L — WILSON TOWN WATER DISTRICT · 5,993 people · 2019 | 4/4 | SYR4 |
| Bromoform | 1.6434999999999997 µg/L No EPA limit set Main supplier: LEWISTON WATER IMPROVEMENTAREA · 16,257 people · 2019
Highest in the ZIP: 2.162 µg/L — PORTER MASTER IMPROVEMENT AREA · 6,920 people · 2019 | 4/4 | SYR4 |
| Monobromoacetic Acid | 1.6 µg/L No EPA limit set Main supplier: LEWISTON WATER IMPROVEMENTAREA · 16,257 people · 2019 | 2/4 | SYR4 |
| Pfba | 0.0130 µg/L No EPA limit set Main supplier: LEWISTON WATER IMPROVEMENTAREA · 16,257 people · 2025 | 1/4 | UCMR-5 |
| Lead | 0.0060 mg/L 40% of the EPA limit 0.0150 mg/L Main supplier: LEWISTON WATER IMPROVEMENTAREA · 16,257 people · 2023 | 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 14131
| Supplier | State | Population served |
|---|---|---|
| LEWISTON WATER IMPROVEMENTAREA | NY | 16,257 |
| PORTER MASTER IMPROVEMENT AREA | NY | 6,920 |
| WILSON TOWN WATER DISTRICT | NY | 5,993 |
| CAMBRIA WATER DISTRICT | NY | 5,839 |
Frequently asked questions about ZIP 14131 tap water
Is the tap water in ZIP 14131 safe to drink?
EPA testing detected 13 contaminants across the water suppliers serving ZIP 14131. 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 14131?
4 public water suppliers report EPA drinking-water monitoring for ZIP 14131. Each is listed above with its population served.
What contaminants are in ZIP 14131's water?
EPA monitoring detected TTHM, Chloroform, Total Haloacetic Acids (HAA5), Dichloroacetic Acid, Trichloroacetic Acid, and others across this ZIP's suppliers. The full list with levels and sources is above.