NORTH CASTLE WATER DISTRICT #4
New York - Community Water System - PWSID: NY5922909
System Information
| PWSID | NY5922909 |
| System Name | NORTH CASTLE WATER DISTRICT #4 |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 02 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Dec 30, 1992 |
| Last Reported | Mar 27, 2026 |
Location & Contact
| State | New York |
| City | ARMONK |
| ZIP Code | 10504 |
| Address | Town Hall |
| Organization | RENDE, JOSEPH |
| Phone | 914-273-3000 |
Population & Service
| Population Served | 1,225 |
| Service Connections | 401 |
Drinking Water Violations (63)
This water system has 63 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2020 | Jan 31, 2020 | MON | No | No | - | - | - | Resolved | Jan 31, 2020 | - | |
| Jan 1, 2020 | Jan 31, 2020 | MON | No | No | - | - | - | Resolved | Jan 31, 2020 | - | |
| Jan 1, 2020 | Jan 31, 2020 | MON | No | No | - | - | - | Resolved | Jan 31, 2020 | - | |
| Jan 1, 2020 | Jan 31, 2020 | MON | No | No | - | - | - | Resolved | Jan 31, 2020 | - | |
| Jan 1, 2018 | Jan 31, 2018 | MON | No | No | - | - | - | Resolved | Jan 31, 2018 | - | |
| Jan 1, 2018 | Jan 31, 2018 | MON | No | No | - | - | - | Resolved | Jan 31, 2018 | - | |
| Mar 1, 2017 | Mar 31, 2017 | MON | No | No | - | - | - | Archived | Mar 31, 2017 | - | |
| Jan 1, 2017 | Jan 31, 2017 | MON | No | No | - | - | - | Archived | Jan 31, 2017 | - | |
| Jan 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Dec 1, 2020 | - | |
| Jan 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Dec 1, 2020 | - | |
| Jan 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Dec 1, 2020 | - | |
| Jan 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Dec 1, 2020 | - | |
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About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.