POCANTICO HILLS WATER DISTRICT
PWS ID: NY5903472 · VALHALLA, New York 10595
Population Served
329
Total Violations
75
Health-Based Violations
43
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 94
- County
- Westchester
- School/Daycare
- No
- MCL Violations
- 42
- Monitoring Violations
- 28
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Total Haloacetic Acids (HAA5) | MCL | 42 | 2021 |
| TTHM | MR | 12 | 2008 |
| Total Haloacetic Acids (HAA5) | MR | 12 | 2008 |
| Coliform (TCR) | MR | 4 | 2009 |
| Surface Water Treatment Rule | TT | 1 | 1993 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.