What was found in ZIP 10591
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 | 50.93 µg/L 64% of the EPA limit 80 µg/L Main supplier: GREENBURGH CONSOLIDATED WD #1 · 86,624 people · 2019
Highest in the ZIP: 62.915 µg/L — TARRYTOWN WATER SUPPLY · 11,000 people · 2019 | 3/3 | SYR4 |
| Chloroform | 45.85 µg/L No EPA limit set Main supplier: GREENBURGH CONSOLIDATED WD #1 · 86,624 people · 2019
Highest in the ZIP: 57.035 µg/L — TARRYTOWN WATER SUPPLY · 11,000 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 47 µg/L 78% of the EPA limit 60 µg/L Main supplier: GREENBURGH CONSOLIDATED WD #1 · 86,624 people · 2019
Highest in the ZIP: 56.55 µg/L — TARRYTOWN WATER SUPPLY · 11,000 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 28 µg/L No EPA limit set Main supplier: GREENBURGH CONSOLIDATED WD #1 · 86,624 people · 2019
Highest in the ZIP: 36.1 µg/L — TARRYTOWN WATER SUPPLY · 11,000 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 20 µg/L No EPA limit set Main supplier: GREENBURGH CONSOLIDATED WD #1 · 86,624 people · 2019
Highest in the ZIP: 24 µg/L — TARRYTOWN WATER SUPPLY · 11,000 people · 2019 | 3/3 | SYR4 |
| Dibromoacetic Acid | 6.862 µg/L No EPA limit set Main supplier: GREENBURGH CONSOLIDATED WD #1 · 86,624 people · 2019 | 1/3 | SYR4 |
| Bromodichloromethane | 4.985 µg/L No EPA limit set Main supplier: GREENBURGH CONSOLIDATED WD #1 · 86,624 people · 2019
Highest in the ZIP: 5.405 µg/L — TARRYTOWN WATER SUPPLY · 11,000 people · 2019 | 3/3 | SYR4 |
| Monochloroacetic Acid | 2.43 µg/L No EPA limit set Main supplier: GREENBURGH CONSOLIDATED WD #1 · 86,624 people · 2019
Highest in the ZIP: 4.358 µg/L — SLEEPY HOLLOW (VILLAGE) · 9,870 people · 2019 | 3/3 | SYR4 |
| Monobromoacetic Acid | 2.4 µg/L No EPA limit set Main supplier: GREENBURGH CONSOLIDATED WD #1 · 86,624 people · 2019 | 1/3 | SYR4 |
| Dibromochloromethane | 1.107 µg/L No EPA limit set Highest in the ZIP: TARRYTOWN WATER SUPPLY · 11,000 people · 2019 | 2/3 | SYR4 |
| Lead | 0.0013 mg/L 8.6% of the EPA limit 0.0150 mg/L Main supplier: GREENBURGH CONSOLIDATED WD #1 · 86,624 people · 2025
Highest in the ZIP: 0.0035 mg/L — TARRYTOWN WATER SUPPLY · 11,000 people · 2027 | 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 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 10591
| Supplier | State | Population served |
|---|---|---|
| GREENBURGH CONSOLIDATED WD #1 | NY | 86,624 |
| TARRYTOWN WATER SUPPLY | NY | 11,000 |
| SLEEPY HOLLOW (VILLAGE) | NY | 9,870 |
Frequently asked questions about ZIP 10591 tap water
Is the tap water in ZIP 10591 safe to drink?
EPA testing detected 11 contaminants across the water suppliers serving ZIP 10591. 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 10591?
3 public water suppliers report EPA drinking-water monitoring for ZIP 10591. Each is listed above with its population served.
What contaminants are in ZIP 10591's water?
EPA monitoring detected TTHM, Chloroform, Total Haloacetic Acids (HAA5), Trichloroacetic Acid, Dichloroacetic Acid, and others across this ZIP's suppliers. The full list with levels and sources is above.