Public water system · NY2102307

Active

Ilion (V) Water Works

At a glance

Ilion (V) Water Works (PWSID NY2102307) is an active community water system in Herkimer County, New York. It reports serving 8,053 people through 2,900 service connections. Its primary water source is 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 August 2025.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

8,053

Service connections

2,900

Primary source

Surface water

System type

CWS

Community water system

System record

PWSIDNY2102307

System typeCommunity water system

Activity statusActive

Population served8,053

Service connections2,900

Primary water sourceSurface water

Owner typeLocal government

Primacy agencyNY state drinking water program

City servedIlion (V)

StateNew York

ZIP—

CountyHerkimer County

How does Ilion (V) Water Works compare with other water systems in Herkimer County?

By EPA's size categories, Ilion (V) Water Works is a medium system (3,301 to 10,000 people). Herkimer County has 123 active public water systems, and Ilion (V) Water Works is the largest of them by population served. Its population served is about 21 times the county average of 391 people per system, and accounts for 17% of the 48,130 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 Ilion (V) Water Works is about 20% above 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 296 New York systems (3.6%) list surface water as their primary source.

Who owns and regulates Ilion (V) Water Works?

EPA lists Ilion (V) Water Works 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. 32 of the 123 active systems in Herkimer County (26%) are also owned by a local government.

Does Ilion (V) Water Works have drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in August 2025. The violations listed here began between October 2020 and August 2025. By type: 11 monitoring and reporting and 1 required treatment not met. The contaminants or rules involved are Lead and Copper Rule, 1,2-Dichloroethane, Ethylbenzene and trans-1,2-Dichloroethylene. EPA lists 11 as resolved and 1 as addressed. 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. Addressed means the violation is not resolved or archived and is covered by formal enforcement.

Began	Violation	Contaminant or rule	Health-based	Status
2025-08-12	Required treatment not metOCCT/SOWT Treatment Installation/Demonstration · code 58	Lead and Copper Rulecode 5000	Yes	Addressed
2020-10-01	Monitoring and reportingMonitoring, Regular · code 03	1,2-Dichloroethanecode 2980	No	Resolved
2020-10-01	Monitoring and reportingMonitoring, Regular · code 03	Ethylbenzenecode 2992	No	Resolved
2020-10-01	Monitoring and reportingMonitoring, Regular · code 03	trans-1,2-Dichloroethylenecode 2979	No	Resolved
2020-10-01	Monitoring and reportingMonitoring, Regular · code 03	p-Dichlorobenzenecode 2969	No	Resolved
2020-10-01	Monitoring and reportingMonitoring, Regular · code 03	Carbon tetrachloridecode 2982	No	Resolved
2020-10-01	Monitoring and reportingMonitoring, Regular · code 03	Vinyl chloridecode 2976	No	Resolved
2020-10-01	Monitoring and reportingMonitoring, Regular · code 03	Styrenecode 2996	No	Resolved
2020-10-01	Monitoring and reportingMonitoring, Regular · code 03	1,2,4-Trichlorobenzenecode 2378	No	Resolved
2020-10-01	Monitoring and reportingMonitoring, Regular · code 03	cis-1,2-Dichloroethylenecode 2380	No	Resolved
2020-10-01	Monitoring and reportingMonitoring, Regular · code 03	1,1,1-Trichloroethanecode 2981	No	Resolved
2020-10-01	Monitoring and reportingMonitoring, Regular · code 03	o-Dichlorobenzenecode 2968	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.

Ilion (V) Water Works: frequently asked questions

Who runs Ilion (V) Water Works?

Ilion (V) Water Works (PWSID NY2102307) is a community water system owned by a local government. It is regulated by the NY state drinking water program.

How many people does Ilion (V) Water Works serve?

Ilion (V) Water Works reports serving 8,053 people through 2,900 service connections in Herkimer County, New York.

Where does Ilion (V) Water Works get its water?

EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.

Does Ilion (V) Water Works 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 August 2025. 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 Ilion (V) Water Works' 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 August 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the NY state drinking water program.

Where can I find Ilion (V) Water Works' water quality report?

As a community water system, Ilion (V) Water Works 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 Herkimer County

Water system	County	Population served	Type	Source
Herkimer Village	Herkimer	7,606	Community	Surface water
Little Falls City	Herkimer	4,605	Community	Surface water
Frankfort (V) Water Works	Herkimer	2,995	Community	Groundwater
Mohawk (V) Water Works	Herkimer	2,985	Community	Groundwater
Nys Thruway - Indian Castle/Iroquois	Herkimer	2,780	Non-transient non-community	Groundwater
Dolgeville (V) Pws	Herkimer	2,166	Community	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, “Ilion (V) Water Works, PWSID NY2102307, New York”, https://aquacensus.com/water-systems/new-york/ilion-v-water-works-ny2102307 (data as of October 1, 2026).