Public water system · WA5313200
ActiveClallam Bay Sekiu
At a glance
Clallam Bay Sekiu (PWSID WA5313200) is an active community water system in Clallam County, Washington. It reports serving 1,719 people through 462 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 8 violations for this system; none is health-based, and the most recent began in June 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,719
Service connections
462
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Clallam Bay Sekiu compare with other water systems in Clallam County?
By EPA's size categories, Clallam Bay Sekiu is a small system (501 to 3,300 people). Clallam County has 100 active public water systems. Its population served is about twice the county average of 879 people per system, and accounts for 2% 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 Clallam Bay Sekiu 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 Clallam Bay Sekiu?
EPA lists Clallam Bay Sekiu as owned by a local 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. 12 of the 100 active systems in Clallam County (12%) are also owned by a local government.
Does Clallam Bay Sekiu have drinking water violations?
EPA's records list 8 violations for this system; none is health-based, and the most recent began in June 2021. The violations listed here began between October 1979 and June 2021. By type: 6 monitoring and reporting, 1 monitoring and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 5 as resolved and 3 as archived. 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. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2021-06-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2017-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2000-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1997-03-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1979-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
All 8 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.
Clallam Bay Sekiu: frequently asked questions
Who runs Clallam Bay Sekiu?
Clallam Bay Sekiu (PWSID WA5313200) is a community water system owned by a local government. It is regulated by the WA state drinking water program.
How many people does Clallam Bay Sekiu serve?
Clallam Bay Sekiu reports serving 1,719 people through 462 service connections in Clallam County, Washington.
Where does Clallam Bay Sekiu 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 Clallam Bay Sekiu have any drinking water violations?
EPA's records list 8 violations for this system; none is health-based, and the most recent began in June 2021. 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 Clallam Bay Sekiu'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 8 violations for this system; none is health-based, and the most recent began in June 2021. For current results, consult the system's annual water quality report, EPA ECHO, or the WA state drinking water program.
Where can I find Clallam Bay Sekiu's water quality report?
As a community water system, Clallam Bay Sekiu 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, “Clallam Bay Sekiu, PWSID WA5313200, Washington”, https://aquacensus.com/water-systems/washington/clallam-bay-sekiu-wa5313200 (data as of October 1, 2026).