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Public water system · NY5907719

Active

325 West Patent Road

At a glance

325 West Patent Road (PWSID NY5907719) is an active non-transient non-community water system in Westchester County, New York. It reports serving 365 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2017.

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

Population served

365

Service connections

1

Primary source

GW

Groundwater

System type

NTNCWS

Non-transient non-community water system

System record

PWSIDNY5907719
System typeNon-transient non-community water system
Activity statusActive
Population served365
Service connections1
Primary water sourceGroundwater
Owner typePrivate
Primacy agencyNY state drinking water program
City servedMount Kisco (V)
StateNew York
ZIP—
CountyWestchester County

How does 325 West Patent Road compare with other water systems in Westchester County?

By EPA's size categories, 325 West Patent Road 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 non-transient non-community water system reports serving 430 people, so 325 West Patent Road is about 15% below that figure.

What does “non-transient non-community water system” mean?

A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. New York has 704 active non-transient non-community water systems, 8.6% of the state's 8,167 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 7,096 New York systems (87%) list groundwater as their primary source.

Who owns and regulates 325 West Patent Road?

EPA lists 325 West Patent Road 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 325 West Patent Road have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2017. The violations listed here began between January 2009 and July 2017. By type: 9 monitoring and reporting, 2 public notice, recordkeeping or other and 1 monitoring. The contaminants or rules involved are Revised Total Coliform Rule, Selenium, Antimony and Thallium. EPA lists 12 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.

BeganViolationContaminant or ruleHealth-basedStatus
2017-07-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2011-11-01Public notice, recordkeeping or otherOperations Report · code 10Not reportedNoResolved
2010-04-01Public notice, recordkeeping or otherOperations Report · code 10Not reportedNoResolved
2009-01-01Monitoring and reportingMonitoring, Regular · code 03Seleniumcode 1045NoResolved
2009-01-01Monitoring and reportingMonitoring, Regular · code 03Antimonycode 1074NoResolved
2009-01-01Monitoring and reportingMonitoring, Regular · code 03Thalliumcode 1085NoResolved
2009-01-01Monitoring and reportingMonitoring, Regular · code 03Cyanidecode 1024NoResolved
2009-01-01Monitoring and reportingMonitoring, Regular · code 03Arseniccode 1005NoResolved
2009-01-01Monitoring and reportingMonitoring, Regular · code 03Bariumcode 1010NoResolved
2009-01-01Monitoring and reportingMonitoring, Regular · code 03Chromiumcode 1020NoResolved
2009-01-01Monitoring and reportingMonitoring, Regular · code 03Mercurycode 1035NoResolved
2009-01-01Monitoring and reportingMonitoring, Regular · code 03Fluoridecode 1025NoResolved

The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.

325 West Patent Road: frequently asked questions

Who runs 325 West Patent Road?

325 West Patent Road (PWSID NY5907719) is a non-transient non-community water system privately owned. It is regulated by the NY state drinking water program.

How many people does 325 West Patent Road serve?

325 West Patent Road reports serving 365 people through 1 service connection in Westchester County, New York.

Where does 325 West Patent Road get its water?

EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.

Does 325 West Patent Road have any drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2017. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.

Is 325 West Patent Road'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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2017. For current results, consult EPA ECHO, or the NY state drinking water program.

Where can I find 325 West Patent Road's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. 325 West Patent Road is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.

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, “325 West Patent Road, PWSID NY5907719, New York”, https://aquacensus.com/water-systems/new-york/325-west-patent-road-ny5907719 (data as of October 1, 2026).