Public water system · VT0008136
ActiveOnion River Campground
At a glance
Onion River Campground (PWSID VT0008136) is an active transient non-community water system in Washington County, Vermont. It reports serving 112 people through 28 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
112
Service connections
28
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Onion River Campground compare with other water systems in Washington County?
By EPA's size categories, Onion River Campground is a very small system (500 people or fewer). Washington County has 125 active public water systems. Its population served is well below the county average of 490 people per system, and accounts for 0.2% of the 61,286 people reported by systems filed under the county. Across Vermont, the 1,357 active systems average 477 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Onion River Campground is about 22% below that figure.
What does “transient non-community water system” mean?
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. Vermont has 699 active transient non-community water systems, 52% of the state's 1,357 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,243 Vermont systems (92%) list groundwater as their primary source.
Who owns and regulates Onion River Campground?
EPA lists Onion River Campground 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. 94 of the 125 active systems in Washington County (75%) are also privately owned.
Does Onion River Campground have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2025. The violations listed here began between September 2018 and July 2025. By type: 6 monitoring, 4 monitoring and reporting, 1 required treatment not met and 1 reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (8 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2025-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-06-11 | Required treatment not metTreatment Technique Startup Procedures (RTCR) · code 2D | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2024-06-11 | ReportingReport Startup Procedures Cert Form (RTCR) · code 4C | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-09-06 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2021-05-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2018-11-07 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2018-09-11 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | 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.
Onion River Campground: frequently asked questions
Who runs Onion River Campground?
Onion River Campground (PWSID VT0008136) is a transient non-community water system privately owned. It is regulated by the VT state drinking water program.
How many people does Onion River Campground serve?
Onion River Campground reports serving 112 people through 28 service connections in Washington County, Vermont.
Where does Onion River Campground get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Onion River Campground 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 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 Onion River Campground'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, one is health-based, and the most recent began in July 2025. For current results, consult EPA ECHO, or the VT state drinking water program.
Where can I find Onion River Campground's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Onion River Campground is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Washington County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Barre City Water System | Washington | 14,000 | Community | Surface water |
| Montpelier Water System | Washington | 8,912 | Community | Surface water |
| Edward Farrar Utility District | Washington | 6,003 | Community | Surface water |
| Northfield Water Dept | Washington | 5,145 | Community | Groundwater |
| Mountain Water Company | Washington | 2,400 | Community | Surface water |
| Berlin Municipal Water System | Washington | 1,819 | Community | Groundwater |
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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, “Onion River Campground, PWSID VT0008136, Vermont”, https://aquacensus.com/water-systems/vermont/onion-river-campground-vt0008136 (data as of October 1, 2026).