Public water system · WA5395167
ActiveWestern Wahkiakum
At a glance
Western Wahkiakum (PWSID WA5395167) is an active community water system in Wahkiakum County, Washington. It reports serving 791 people through 362 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
791
Service connections
362
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Western Wahkiakum compare with other water systems in Wahkiakum County?
By EPA's size categories, Western Wahkiakum is a small system (501 to 3,300 people). Wahkiakum County has 6 active public water systems, and Western Wahkiakum is the 3rd-largest of them by population served. Its population served is about 27% above the county average of 621 people per system, and accounts for 21% of the 3,726 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 Western Wahkiakum 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 Western Wahkiakum?
EPA lists Western Wahkiakum 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. 6 of the 6 active systems in Wahkiakum County (100%) are also owned by a local government.
Does Western Wahkiakum have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2023. The violations listed here began between January 2005 and July 2023. By type: 11 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminants or rules involved are Consumer Confidence Rule, Total trihalomethanes (TTHM), Haloacetic acids (HAA5) and Lead and Copper Rule. 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 |
|---|---|---|---|---|
| 2023-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2007-01-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Seleniumcode 1045 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Antimonycode 1074 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Bariumcode 1010 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nickelcode 1036 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chromiumcode 1020 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Cadmiumcode 1015 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Thalliumcode 1085 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Cyanidecode 1024 | 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.
Western Wahkiakum: frequently asked questions
Who runs Western Wahkiakum?
Western Wahkiakum (PWSID WA5395167) is a community water system owned by a local government. It is regulated by the WA state drinking water program.
How many people does Western Wahkiakum serve?
Western Wahkiakum reports serving 791 people through 362 service connections in Wahkiakum County, Washington.
Where does Western Wahkiakum 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 Western Wahkiakum 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 July 2023. 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 Western Wahkiakum'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 July 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the WA state drinking water program.
Where can I find Western Wahkiakum's water quality report?
As a community water system, Western Wahkiakum 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 Wahkiakum County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Cathlamet Water Dept | Wahkiakum | 1,636 | Community | Surface water |
| Puget Island | Wahkiakum | 920 | Community | Purchased surface water |
| Skamokawa Water System | Wahkiakum | 267 | Community | Groundwater |
| Skamokawa Vista Park | Wahkiakum | 87 | Transient non-community | Groundwater |
| County Line Park | Wahkiakum | 25 | Transient non-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, “Western Wahkiakum, PWSID WA5395167, Washington”, https://aquacensus.com/water-systems/washington/western-wahkiakum-wa5395167 (data as of October 1, 2026).