Public water system · NY5903457
ActiveScarsdale Water Department
At a glance
Scarsdale Water Department (PWSID NY5903457) is an active community water system in Westchester County, New York. It reports serving 21,649 people through 5,800 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
21,649
Service connections
5,800
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Scarsdale Water Department compare with other water systems in Westchester County?
By EPA's size categories, Scarsdale Water Department is a large system (10,001 to 100,000 people). Westchester County has 273 active public water systems. Its population served is about 5.7 times the county average of 3,808 people per system, and accounts for 2.1% of the 1,039,556 people reported by systems filed under the county. Across New York, the 8,167 active systems average 2,374 people each. Nationally, the average active community water system reports serving 6,703 people, so Scarsdale Water Department is about 3.2 times that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. New York has 2,281 active community water systems, 28% of the state's 8,167 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 399 New York systems (4.9%) list purchased surface water as their primary source.
Who owns and regulates Scarsdale Water Department?
EPA lists Scarsdale Water Department as owned by a local government. The NY state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 77 of the 273 active systems in Westchester County (28%) are also owned by a local government.
Does Scarsdale Water Department have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Scarsdale Water Department. For the latest compliance status, check EPA ECHO for current compliance history.
Scarsdale Water Department: frequently asked questions
Who runs Scarsdale Water Department?
Scarsdale Water Department (PWSID NY5903457) is a community water system owned by a local government. It is regulated by the NY state drinking water program.
How many people does Scarsdale Water Department serve?
Scarsdale Water Department reports serving 21,649 people through 5,800 service connections in Westchester County, New York.
Where does Scarsdale Water Department get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Scarsdale Water Department have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Scarsdale Water Department's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's Safe Drinking Water Act records list no violations for this system. For current results, consult the system's annual water quality report, EPA ECHO, or the NY state drinking water program.
Where can I find Scarsdale Water Department's water quality report?
As a community water system, Scarsdale Water Department must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Westchester County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Yonkers City | Westchester | 211,569 | Community | Purchased surface water |
| Veolia Water New York, Inc.. Rd-1 | Westchester | 146,732 | Community | Purchased surface water |
| Greenburgh Consolidated Wd #1 | Westchester | 86,624 | Community | Purchased surface water |
| Mount Vernon Water Department | Westchester | 73,893 | Community | Purchased surface water |
| Westchester Joint Water Works | Westchester | 59,629 | Community | Surface water |
| White Plains City | Westchester | 59,559 | Community | Purchased surface water |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Scarsdale Water Department, PWSID NY5903457, New York”, https://aquacensus.com/water-systems/new-york/scarsdale-water-department-ny5903457 (data as of October 1, 2026).