NEW CASTLE/STANWOOD W.D.
New York — Community Water System — PWSID: NY5903442
System Information
| PWSID | NY5903442 |
| System Name | NEW CASTLE/STANWOOD W.D. |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 02 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 29, 1981 |
| Last Reported | Dec 23, 2025 |
Location & Contact
| State | New York |
| City | CHAPPAQUA |
| ZIP Code | 10514 |
| Address | 200 South Greeley Avenue |
| Organization | TIPP, VICTORIA B. |
| Phone | 914-238-7281 |
Population & Service
| Population Served | 17,116 |
| Service Connections | 5,183 |
Drinking Water Violations (18)
This water system has 18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2018 | Jun 30, 2018 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2018 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2018 | Jun 30, 2018 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2018 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2018 | Jun 30, 2018 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2018 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2018 | Jun 30, 2018 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2018 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2018 | Jun 30, 2018 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2018 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2018 | Jun 30, 2018 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2018 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2018 | Jun 30, 2018 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2018 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2018 | Jun 30, 2018 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2018 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2009 | Jul 31, 2009 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2009 | Total Coliform Rule |
| Jul 1, 2009 | Jul 31, 2009 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2009 | Total Coliform Rule |
| Jul 1, 2009 | Jul 31, 2009 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2009 | Total Coliform Rule |
| Jul 1, 2009 | Jul 31, 2009 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2009 | Total Coliform Rule |
| Jun 1, 2007 | Jun 30, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2007 | Total Coliform Rule |
| Jan 1, 2002 | Dec 31, 2002 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2002 | Nitrate Rule |
| Jan 1, 2002 | Dec 31, 2002 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2002 | Nitrate Rule |
| Jan 1, 2002 | Dec 31, 2002 | Mercury | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2002 | Inorganic Chemicals |
| Jan 1, 2002 | Dec 31, 2002 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2002 | Nitrate Rule |
| — | — | — | No | No | — | — | — | — | — | — |
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.