Public water system · NY2230095

Active

Wilna T Wd 1

At a glance

Wilna T Wd 1 (PWSID NY2230095) is an active community water system in Jefferson County, New York. It reports serving 240 people through 85 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, 11 are health-based, and the most recent began in October 2024.

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

Population served

240

Service connections

Primary source

SWP

Purchased surface water

System type

CWS

Community water system

System record

PWSIDNY2230095

System typeCommunity water system

Activity statusActive

Population served240

Service connections85

Primary water sourcePurchased surface water

Owner typeLocal government

Primacy agencyNY state drinking water program

City servedWilna (T)

StateNew York

ZIP—

CountyJefferson County

How does Wilna T Wd 1 compare with other water systems in Jefferson County?

By EPA's size categories, Wilna T Wd 1 is a very small system (500 people or fewer). Jefferson County has 157 active public water systems. Its population served is well below the county average of 832 people per system, and accounts for 0.2% of the 130,600 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 Wilna T Wd 1 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. 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 Wilna T Wd 1?

EPA lists Wilna T Wd 1 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. 46 of the 157 active systems in Jefferson County (29%) are also owned by a local government.

Does Wilna T Wd 1 have drinking water violations?

Of the 12 most recent violations in EPA's records, 11 are health-based, and the most recent began in October 2024. The violations listed here began between October 2017 and October 2024. By type: 11 contaminant level above the legal limit and 1 reporting. The contaminant or rule involved most often is Haloacetic acids (HAA5) (11 of them). EPA lists 10 as resolved and 2 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
2024-10-17	ReportingLSL Reporting · code 4G	Lead and Copper Rule Revisionscode 5200	No	Resolved
2022-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	Yes	Archived
2021-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	Yes	Archived
2019-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	Yes	Resolved
2019-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	Yes	Resolved
2019-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	Yes	Resolved
2019-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	Yes	Resolved
2018-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	Yes	Resolved
2018-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	Yes	Resolved
2018-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	Yes	Resolved
2018-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	Yes	Resolved
2017-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	Yes	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.

Wilna T Wd 1: frequently asked questions

Who runs Wilna T Wd 1?

Wilna T Wd 1 (PWSID NY2230095) is a community water system owned by a local government. It is regulated by the NY state drinking water program.

How many people does Wilna T Wd 1 serve?

Wilna T Wd 1 reports serving 240 people through 85 service connections in Jefferson County, New York.

Where does Wilna T Wd 1 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 Wilna T Wd 1 have any drinking water violations?

Of the 12 most recent violations in EPA's records, 11 are health-based, and the most recent began in October 2024. 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 Wilna T Wd 1'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, 11 are health-based, and the most recent began in October 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the NY state drinking water program.

Where can I find Wilna T Wd 1's water quality report?

As a community water system, Wilna T Wd 1 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 Jefferson County

Water system	County	Population served	Type	Source
Fort Drum	Jefferson	34,000	Community	Purchased surface water
Watertown City	Jefferson	27,861	Community	Surface water
Leray Town Wd 1, 2, 4	Jefferson	7,140	Community	Groundwater
Carthage Village	Jefferson	3,600	Community	Surface water
Cape Vincent Town Wd 1 & 5	Jefferson	2,600	Community	Purchased surface water
Sackets Harbor Village	Jefferson	2,200	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, “Wilna T Wd 1, PWSID NY2230095, New York”, https://aquacensus.com/water-systems/new-york/wilna-t-wd-1-ny2230095 (data as of October 1, 2026).