What was found in ZIP 10523
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: 56.28 µg/L — ELMSFORD VILLAGE · 5,293 people · 2019 | 2/2 | SYR4 |
| Chloroform | 45.85 µg/L No EPA limit set Main supplier: GREENBURGH CONSOLIDATED WD #1 · 86,624 people · 2019
Highest in the ZIP: 51.54 µg/L — ELMSFORD VILLAGE · 5,293 people · 2019 | 2/2 | 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 | 2/2 | SYR4 |
| Trichloroacetic Acid | 28 µg/L No EPA limit set Main supplier: GREENBURGH CONSOLIDATED WD #1 · 86,624 people · 2019
Highest in the ZIP: 28.395 µg/L — ELMSFORD VILLAGE · 5,293 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 20 µg/L No EPA limit set Main supplier: GREENBURGH CONSOLIDATED WD #1 · 86,624 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 6.862 µg/L No EPA limit set Main supplier: GREENBURGH CONSOLIDATED WD #1 · 86,624 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 4.985 µg/L No EPA limit set Main supplier: GREENBURGH CONSOLIDATED WD #1 · 86,624 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 2.43 µg/L No EPA limit set Main supplier: GREENBURGH CONSOLIDATED WD #1 · 86,624 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 2.4 µg/L No EPA limit set Main supplier: GREENBURGH CONSOLIDATED WD #1 · 86,624 people · 2019 | 1/2 | SYR4 |
| Dibromochloromethane | 0.2900 µg/L No EPA limit set Highest in the ZIP: ELMSFORD VILLAGE · 5,293 people · 2019 | 1/2 | 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: 0.0034 mg/L — ELMSFORD VILLAGE · 5,293 people · 2027 | 2/2 | 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 10523
| Supplier | State | Population served |
|---|---|---|
| GREENBURGH CONSOLIDATED WD #1 | NY | 86,624 |
| ELMSFORD VILLAGE | NY | 5,293 |
Frequently asked questions about ZIP 10523 tap water
Is the tap water in ZIP 10523 safe to drink?
EPA testing detected 11 contaminants across the water suppliers serving ZIP 10523. 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 10523?
2 public water suppliers report EPA drinking-water monitoring for ZIP 10523. Each is listed above with its population served.
What contaminants are in ZIP 10523'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.