Public water system · NY5903432
ActiveIrvington Water Supply
At a glance
Irvington Water Supply (PWSID NY5903432) is an active community water system in Westchester County, New York. It reports serving 6,631 people through 1,583 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in May 2015.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
6,631
Service connections
1,583
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Irvington Water Supply compare with other water systems in Westchester County?
By EPA's size categories, Irvington Water Supply is a medium system (3,301 to 10,000 people). Westchester County has 273 active public water systems. Its population served is about 74% above the county average of 3,808 people per system, and accounts for 0.6% 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 Irvington Water Supply is roughly in line with 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 Irvington Water Supply?
EPA lists Irvington Water Supply 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 Irvington Water Supply have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in May 2015. The violations listed here began between January 1993 and May 2015. By type: 11 monitoring and reporting and 1 required treatment not met. The contaminant or rule involved most often is Haloacetic acids (HAA5) (4 of them). EPA lists 11 as resolved and 1 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2015-05-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2013-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2005-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Archived |
| 2004-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2004-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2004-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2004-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2004-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2004-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2004-01-01 | Required treatment not metWQP Entry Point/Tap Treatment Technique Non-Compliance · code 59 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 1993-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
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.
Irvington Water Supply: frequently asked questions
Who runs Irvington Water Supply?
Irvington Water Supply (PWSID NY5903432) is a community water system owned by a local government. It is regulated by the NY state drinking water program.
How many people does Irvington Water Supply serve?
Irvington Water Supply reports serving 6,631 people through 1,583 service connections in Westchester County, New York.
Where does Irvington Water Supply 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 Irvington Water Supply have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in May 2015. 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 Irvington Water Supply'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, one is health-based, and the most recent began in May 2015. For current results, consult the system's annual water quality report, EPA ECHO, or the NY state drinking water program.
Where can I find Irvington Water Supply's water quality report?
As a community water system, Irvington Water Supply 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, “Irvington Water Supply, PWSID NY5903432, New York”, https://aquacensus.com/water-systems/new-york/irvington-water-supply-ny5903432 (data as of October 1, 2026).