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Public water system · NY5930083

Active

Lewisboro Commons

At a glance

Lewisboro Commons (PWSID NY5930083) is an active community water system in Westchester County, New York. It reports serving 168 people through 5 service connections. Its primary water source is groundwater under influence of surface water, and EPA lists it as privately owned. EPA's Safe Drinking Water Act records list no violations for this system.

Dataset updated . Source: EPA SDWIS/ECHO public records.

Population served

168

Service connections

5

Primary source

GU

Groundwater under influence of surface water

System type

CWS

Community water system

System record

PWSIDNY5930083
System typeCommunity water system
Activity statusActive
Population served168
Service connections5
Primary water sourceGroundwater under influence of surface water
Owner typePrivate
Primacy agencyNY state drinking water program
City servedLewisboro (T)
StateNew York
ZIP—
CountyWestchester County

How does Lewisboro Commons compare with other water systems in Westchester County?

By EPA's size categories, Lewisboro Commons is a very small system (500 people or fewer). Westchester County has 273 active public water systems. Its population served is well below the county average of 3,808 people per system, and accounts for less than 0.1% 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 Lewisboro Commons is well below 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. Groundwater under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules. 241 New York systems (3%) list groundwater under influence of surface water as their primary source.

Who owns and regulates Lewisboro Commons?

EPA lists Lewisboro Commons as privately owned. 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. 185 of the 273 active systems in Westchester County (68%) are also privately owned.

Does Lewisboro Commons 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 Lewisboro Commons. For the latest compliance status, check EPA ECHO for current compliance history.

Lewisboro Commons: frequently asked questions

Who runs Lewisboro Commons?

Lewisboro Commons (PWSID NY5930083) is a community water system privately owned. It is regulated by the NY state drinking water program.

How many people does Lewisboro Commons serve?

Lewisboro Commons reports serving 168 people through 5 service connections in Westchester County, New York.

Where does Lewisboro Commons get its water?

EPA SDWIS lists this system's primary water source as groundwater under influence of surface water. Groundwater under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules.

Does Lewisboro Commons have any drinking water violations?

EPA's Safe Drinking Water Act records list no violations for this system.

Is Lewisboro Commons' 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 Lewisboro Commons' water quality report?

As a community water system, Lewisboro Commons 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 systemCountyPopulation servedTypeSource
Yonkers CityWestchester211,569CommunityPurchased surface water
Veolia Water New York, Inc.. Rd-1Westchester146,732CommunityPurchased surface water
Greenburgh Consolidated Wd #1Westchester86,624CommunityPurchased surface water
Mount Vernon Water DepartmentWestchester73,893CommunityPurchased surface water
Westchester Joint Water WorksWestchester59,629CommunitySurface water
White Plains CityWestchester59,559CommunityPurchased 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, “Lewisboro Commons, PWSID NY5930083, New York”, https://aquacensus.com/water-systems/new-york/lewisboro-commons-ny5930083 (data as of October 1, 2026).