Public water system · WA53AB170
ActivePlymouth Campground
At a glance
Plymouth Campground (PWSID WA53AB170) is an active transient non-community water system in Benton County, Oregon. It reports serving 104 people through 47 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in October 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
104
Service connections
47
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Plymouth Campground compare with other water systems in Benton County?
By EPA's size categories, Plymouth Campground is a very small system (500 people or fewer). Benton County has 51 active public water systems. Its population served is well below the county average of 1,430 people per system, and accounts for 0.1% of the 72,904 people reported by systems filed under the county. Across Oregon, the 2,536 active systems average 1,587 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Plymouth Campground is about 28% 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. Oregon has 1,250 active transient non-community water systems, 49% of the state's 2,536 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,175 Oregon systems (86%) list groundwater as their primary source.
Who owns and regulates Plymouth Campground?
EPA lists Plymouth Campground as owned by the federal government. The WA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 3 of the 51 active systems in Benton County (5.9%) are also owned by the federal government.
Does Plymouth Campground have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in October 2025. The violations listed here began between April 2019 and October 2025. By type: 4 monitoring. The contaminant or rule involved most often is Revised Total Coliform Rule (4 of them). EPA lists 4 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 |
|---|---|---|---|---|
| 2025-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
All 4 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.
Plymouth Campground: frequently asked questions
Who runs Plymouth Campground?
Plymouth Campground (PWSID WA53AB170) is a transient non-community water system owned by the federal government. It is regulated by the WA state drinking water program.
How many people does Plymouth Campground serve?
Plymouth Campground reports serving 104 people through 47 service connections in Benton County, Oregon.
Where does Plymouth 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 Plymouth Campground have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in October 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 Plymouth 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. EPA's records list 4 violations for this system; none is health-based, and the most recent began in October 2025. For current results, consult EPA ECHO, or the WA state drinking water program.
Where can I find Plymouth Campground's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Plymouth 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 Benton County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Corvallis, City of | Benton | 61,468 | Community | Surface water |
| Philomath Public Works | Benton | 4,670 | Community | Surface water |
| Adair Village Water System | Benton | 875 | Community | Surface water |
| Monroe, City of | Benton | 723 | Community | Surface water |
| Knoll Terrace Park | Benton | 452 | Community | Groundwater |
| Vineyard Mountain Water | Benton | 325 | 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, “Plymouth Campground, PWSID WA53AB170, Oregon”, https://aquacensus.com/water-systems/oregon/plymouth-campground-wa53ab170 (data as of October 1, 2026).