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Chittenden County, Vermont — public water systems

At a glance

96 active public water systems are filed under Chittenden County, Vermont in EPA's SDWIS records, together reporting 150,374 people served. The largest is Burlington Dept Public Works Water Div, which reports serving 42,000 people. 48 are community water systems serving people where they live; the other 48 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.

Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.

Active systems

96

Population served

150.4K

Community systems

48

Groundwater share

74%

How does Chittenden County compare with other Vermont counties?

Chittenden County has the 6th-most active public water systems among the 14 counties listed for active Vermont systems in EPA records; among the 14 with 3 or more systems, the median has 78. Its systems report 150,374 people served in total, the largest county figure in the state and 23% of the statewide total. The average system here reports serving 1,566 people, about 3.3 times the Vermont average of 477. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.

Where does Chittenden County's drinking water come from?

By primary water source, Chittenden County's active systems draw on groundwater (71, 74%), purchased surface water (20, 21%) and surface water (5, 5.2%). Overall, 74% rely mainly on groundwater (including purchased groundwater) and 26% on surface water, compared with 93% and 7% across Vermont. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Burlington Dept Public Works Water Div, draws primarily on surface water.

What kinds of water systems operate in Chittenden County?

Chittenden County's active systems break down as 48 community systems (50%), 14 non-transient non-community systems (15%) and 34 transient non-community systems (35%). 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. 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. A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as private (61%), local government (33%) and state government (5.2%).

The 50 largest water systems in Chittenden County

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Active public water systems in Chittenden County, Vermont
#Water systemCountyPopulation servedTypeSource
1Burlington Dept Public Works Water DivChittenden42,000CommunitySurface water
2South Burlington City Water SystemChittenden19,500CommunityPurchased surface water
3Colchester Water SystemChittenden11,299CommunityPurchased surface water
4Essex Town Water SystemChittenden9,734CommunityPurchased surface water
5Essex Jct Water DeptChittenden9,500CommunityPurchased surface water
6Winooski Water DeptChittenden8,500CommunityPurchased surface water
7Colchester Fire District 2Chittenden8,300CommunityPurchased surface water
8Milton Water DeptChittenden8,260CommunityPurchased surface water
9Williston Water DeptChittenden7,259CommunityPurchased surface water
10Shelburne Water DeptChittenden5,764CommunityPurchased surface water
11Hinesburg Water DeptChittenden2,800CommunityGroundwater
12Village of Jericho Water SystemChittenden1,410CommunityPurchased surface water
13Richmond Water DeptChittenden1,048CommunityGroundwater
14Bolton Community Water SystemChittenden1,030CommunityGroundwater
15Jericho Underhill WaterChittenden825CommunityGroundwater
16Westbury ParkChittenden663CommunityPurchased surface water
17Williston Sb Rest Area I89Chittenden661Transient non-communityGroundwater
18Charlotte Central SchoolChittenden616Non-transient non-communityGroundwater
19Hillcrest MHP Inc.Chittenden615CommunityPurchased surface water
20Malletts Bay Water CoChittenden533CommunityPurchased surface water
21Sand Bar State ParkChittenden528Transient non-communitySurface water
22Wake Robin CorpChittenden519CommunityPurchased surface water
23St George Community CooperativeChittenden420CommunityGroundwater
24Westford Elementary SchoolChittenden394Non-transient non-communityGroundwater
25Riverview CommonsChittenden388CommunityGroundwater
26Point Bay MarinaChittenden305Transient non-communityGroundwater
27North Ave Co-OpChittenden301CommunityPurchased surface water
28Jericho East Home Owners AssociationChittenden300CommunityPurchased surface water
29Camp Dudley at KiniyaChittenden273Transient non-communityGroundwater
30Fernwood Manor MHPChittenden250CommunityGroundwater
31Williston Golf ClubChittenden250Transient non-communityGroundwater
32South Burlington Fire DistrictChittenden250CommunityGroundwater
33Shelburne FarmsChittenden235CommunityPurchased surface water
34North HarborChittenden225CommunityGroundwater
35Brewster Pierce SchoolChittenden217Non-transient non-communityGroundwater
36Camp PrecastChittenden213Non-transient non-communityGroundwater
37Lyman MeadowsChittenden212CommunityGroundwater
38Williston Fire District 1Chittenden212CommunityGroundwater
39Cedar Knoll Country ClubChittenden210Transient non-communityGroundwater
40Thompsons Point AssociationChittenden204Transient non-communitySurface water
41Good Shepherd Lutheran ChurchChittenden204Transient non-communityGroundwater
42Mount Philo State ParkChittenden200Transient non-communityGroundwater
43Windemere MHPChittenden199CommunityPurchased surface water
44Jericho Fire District 1Chittenden190CommunityGroundwater
45Smilie Memorial Elementary SchoolChittenden170Non-transient non-communityGroundwater
46NorthernshireChittenden166Non-transient non-communityGroundwater
47Underhill Central SchoolChittenden165Non-transient non-communityGroundwater
48Sleepy Hollow Ski and Bike CenterChittenden150Transient non-communityGroundwater
49Mansfield BarnChittenden134Transient non-communityGroundwater
50Huntington Fire District 1Chittenden120CommunityGroundwater

All other water systems in Chittenden County (46)

The remaining active systems filed under Chittenden County, largest first, with the population each reports serving.

Chittenden County water systems: frequently asked questions

How many public water systems are in Chittenden County, Vermont?

EPA's SDWIS records file 96 active public water systems under Chittenden County, Vermont: 48 community systems (50%), 14 non-transient non-community systems (15%) and 34 transient non-community systems (35%).

Who supplies drinking water in Chittenden County, VT?

The largest community water systems filed under Chittenden County are Burlington Dept Public Works Water Div (42,000 people served), South Burlington City Water System (19,500 people served) and Colchester Water System (11,299 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.

Does Chittenden County's drinking water come from groundwater or surface water?

Of the 96 active public water systems in Chittenden County, 74% draw mainly on groundwater and 26% on surface water, counting purchased supplies. The largest system, Burlington Dept Public Works Water Div, uses surface water.

Where can I find a water quality report for Chittenden County?

Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 48 community systems are filed under Chittenden County, so the report to look for is the one from the system that supplies your address.

How can I check violations for a water system in Chittenden County?

Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.

More Vermont water systems

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, “Public water systems in Chittenden County, Vermont”, https://aquacensus.com/water-systems/vermont/chittenden (data as of October 1, 2026).