Public water system · WA5320300
ActiveDungeness Bay Plat
At a glance
Dungeness Bay Plat (PWSID WA5320300) is an active community water system in Clallam County, Washington. It reports serving 461 people through 192 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, none is health-based, and the most recent began in October 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
461
Service connections
192
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Dungeness Bay Plat compare with other water systems in Clallam County?
By EPA's size categories, Dungeness Bay Plat is a very small system (500 people or fewer). Clallam County has 100 active public water systems. Its population served is about half of the county average of 879 people per system, and accounts for 0.5% of the 87,933 people reported by systems filed under the county. Across Washington, the 4,705 active systems average 2,172 people each. Nationally, the average active community water system reports serving 6,703 people, so Dungeness Bay Plat 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. Washington has 2,392 active community water systems, 51% of the state's 4,705 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 4,370 Washington systems (93%) list groundwater as their primary source.
Who owns and regulates Dungeness Bay Plat?
EPA lists Dungeness Bay Plat as privately owned. 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. 75 of the 100 active systems in Clallam County (75%) are also privately owned.
Does Dungeness Bay Plat have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2025. The violations listed here began between October 2025 and October 2025. By type: 12 monitoring and reporting. The contaminants or rules involved are 1,1,2-Trichloroethane, Benzene, 1,2-Dichloroethane and Ethylbenzene. 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 |
|---|---|---|---|---|
| 2025-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,2-Trichloroethanecode 2985 | No | Resolved |
| 2025-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Benzenecode 2990 | No | Resolved |
| 2025-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloroethanecode 2980 | No | Resolved |
| 2025-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylbenzenecode 2992 | No | Resolved |
| 2025-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloropropanecode 2983 | No | Resolved |
| 2025-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Trichloroethylenecode 2984 | No | Resolved |
| 2025-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | o-Dichlorobenzenecode 2968 | No | Resolved |
| 2025-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,1-Trichloroethanecode 2981 | No | Resolved |
| 2025-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Styrenecode 2996 | No | Resolved |
| 2025-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2,4-Trichlorobenzenecode 2378 | No | Resolved |
| 2025-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Carbon tetrachloridecode 2982 | No | Resolved |
| 2025-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | trans-1,2-Dichloroethylenecode 2979 | 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.
Dungeness Bay Plat: frequently asked questions
Who runs Dungeness Bay Plat?
Dungeness Bay Plat (PWSID WA5320300) is a community water system privately owned. It is regulated by the WA state drinking water program.
How many people does Dungeness Bay Plat serve?
Dungeness Bay Plat reports serving 461 people through 192 service connections in Clallam County, Washington.
Where does Dungeness Bay Plat 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 Dungeness Bay Plat have any drinking water violations?
Of the 12 most recent violations in EPA's records, 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 Dungeness Bay Plat'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, none is health-based, and the most recent began in October 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the WA state drinking water program.
Where can I find Dungeness Bay Plat's water quality report?
As a community water system, Dungeness Bay Plat 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 Clallam County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Port Angeles City of | Clallam | 28,067 | Community | Surface water |
| Sequim City of | Clallam | 14,293 | Community | Groundwater |
| Port Angeles Composite | Clallam | 8,872 | Community | Surface water |
| Forks Municipal Water Dept | Clallam | 3,468 | Community | Groundwater |
| Dry Creek Water Association | Clallam | 3,030 | Community | Groundwater |
| West Sequim Bay Inc. | Clallam | 2,759 | 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, “Dungeness Bay Plat, PWSID WA5320300, Washington”, https://aquacensus.com/water-systems/washington/dungeness-bay-plat-wa5320300 (data as of October 1, 2026).