Public water system · VT0020867

Active

Oak Hill Estates Water System

At a glance

Oak Hill Estates Water System (PWSID VT0020867) is an active community water system in Chittenden County, Vermont. It reports serving 52 people through 20 service connections. Its primary water source is purchased surface water, and EPA lists it as privately owned. EPA's records list 11 violations for this system; none is health-based, and the most recent began in July 2024.

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

Population served

Service connections

Primary source

SWP

Purchased surface water

System type

CWS

Community water system

System record

PWSIDVT0020867

System typeCommunity water system

Activity statusActive

Population served52

Service connections20

Primary water sourcePurchased surface water

Owner typePrivate

Primacy agencyVT state drinking water program

City servedWilliston

StateVermont

ZIP—

CountyChittenden County

How does Oak Hill Estates Water System compare with other water systems in Chittenden County?

By EPA's size categories, Oak Hill Estates Water System is a very small system (500 people or fewer). Chittenden County has 96 active public water systems. Its population served is well below the county average of 1,566 people per system, and accounts for less than 0.1% of the 150,374 people reported by systems filed under the county. Across Vermont, the 1,357 active systems average 477 people each. Nationally, the average active community water system reports serving 6,703 people, so Oak Hill Estates Water System 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. Vermont has 405 active community water systems, 30% of the state's 1,357 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 50 Vermont systems (3.7%) list purchased surface water as their primary source.

Who owns and regulates Oak Hill Estates Water System?

EPA lists Oak Hill Estates Water System as privately owned. The VT state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 59 of the 96 active systems in Chittenden County (61%) are also privately owned.

Does Oak Hill Estates Water System have drinking water violations?

EPA's records list 11 violations for this system; none is health-based, and the most recent began in July 2024. The violations listed here began between January 2008 and July 2024. By type: 7 monitoring and reporting and 4 public notice, recordkeeping or other. The contaminant or rule involved most often is Consumer Confidence Rule (4 of them). EPA lists 11 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.

Began	Violation	Contaminant or rule	Health-based	Status
2024-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2021-01-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2018-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2013-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2011-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2011-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2008-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2008-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2008-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2008-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2008-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved

All 11 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.

Oak Hill Estates Water System: frequently asked questions

Who runs Oak Hill Estates Water System?

Oak Hill Estates Water System (PWSID VT0020867) is a community water system privately owned. It is regulated by the VT state drinking water program.

How many people does Oak Hill Estates Water System serve?

Oak Hill Estates Water System reports serving 52 people through 20 service connections in Chittenden County, Vermont.

Where does Oak Hill Estates Water System 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 Oak Hill Estates Water System have any drinking water violations?

EPA's records list 11 violations for this system; none is health-based, and the most recent began in July 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 Oak Hill Estates Water System'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. EPA's records list 11 violations for this system; none is health-based, and the most recent began in July 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the VT state drinking water program.

Where can I find Oak Hill Estates Water System's water quality report?

As a community water system, Oak Hill Estates Water System 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 Chittenden County

Water system	County	Population served	Type	Source
Burlington Dept Public Works Water Div	Chittenden	42,000	Community	Surface water
South Burlington City Water System	Chittenden	19,500	Community	Purchased surface water
Colchester Water System	Chittenden	11,299	Community	Purchased surface water
Essex Town Water System	Chittenden	9,734	Community	Purchased surface water
Essex Jct Water Dept	Chittenden	9,500	Community	Purchased surface water
Winooski Water Dept	Chittenden	8,500	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, “Oak Hill Estates Water System, PWSID VT0020867, Vermont”, https://aquacensus.com/water-systems/vermont/oak-hill-estates-water-system-vt0020867 (data as of October 1, 2026).