Public water system · VT0020333
ActiveMalletts Bay Water Co
At a glance
Malletts Bay Water Co (PWSID VT0020333) is an active community water system in Chittenden County, Vermont. It reports serving 533 people through 232 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 3 violations for this system; none is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
533
Service connections
232
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Malletts Bay Water Co compare with other water systems in Chittenden County?
By EPA's size categories, Malletts Bay Water Co is a small system (501 to 3,300 people). Chittenden County has 96 active public water systems. Its population served is about 66% below the county average of 1,566 people per system, and accounts for 0.4% 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 Malletts Bay Water Co 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 Malletts Bay Water Co?
EPA lists Malletts Bay Water Co as owned by a local government. 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. 32 of the 96 active systems in Chittenden County (33%) are also owned by a local government.
Does Malletts Bay Water Co have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in July 2025. The violations listed here began between July 2022 and July 2025. By type: 3 monitoring and reporting. The contaminants or rules involved are Haloacetic acids (HAA5), Total trihalomethanes (TTHM) and Asbestos. EPA lists 2 as archived and 1 as resolved. 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. 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 |
|---|---|---|---|---|
| 2025-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Archived |
| 2025-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Archived |
| 2022-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Asbestoscode 1094 | No | Resolved |
All 3 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.
Malletts Bay Water Co: frequently asked questions
Who runs Malletts Bay Water Co?
Malletts Bay Water Co (PWSID VT0020333) is a community water system owned by a local government. It is regulated by the VT state drinking water program.
How many people does Malletts Bay Water Co serve?
Malletts Bay Water Co reports serving 533 people through 232 service connections in Chittenden County, Vermont.
Where does Malletts Bay Water Co 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 Malletts Bay Water Co have any drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in July 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 Malletts Bay Water Co'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 3 violations for this system; none is health-based, and the most recent began in July 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the VT state drinking water program.
Where can I find Malletts Bay Water Co's water quality report?
As a community water system, Malletts Bay Water Co 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, “Malletts Bay Water Co, PWSID VT0020333, Vermont”, https://aquacensus.com/water-systems/vermont/malletts-bay-water-co-vt0020333 (data as of October 1, 2026).