Public water system · WA5358350
ActiveNaselle
At a glance
Naselle (PWSID WA5358350) is an active community water system in Pacific County, Washington. It reports serving 2,073 people through 589 service connections. Its primary water source is surface water, 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 January 2007.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,073
Service connections
589
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Naselle compare with other water systems in Pacific County?
By EPA's size categories, Naselle is a small system (501 to 3,300 people). Pacific County has 38 active public water systems. Its population served is about 134% above the county average of 888 people per system, and accounts for 6.1% of the 33,728 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 Naselle 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 140 Washington systems (3%) list surface water as their primary source.
Who owns and regulates Naselle?
EPA lists Naselle 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. 24 of the 38 active systems in Pacific County (63%) are also privately owned.
Does Naselle have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2007. The violations listed here began between January 2007 and January 2007. By type: 12 monitoring and reporting. The contaminant or rule involved most often is 1,1,2-Trichloroethane (2 of them). EPA lists 12 as archived. 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 |
|---|---|---|---|---|
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,2-Trichloroethanecode 2985 | No | Archived |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Styrenecode 2996 | No | Archived |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,2-Trichloroethanecode 2985 | No | Archived |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | cis-1,2-Dichloroethylenecode 2380 | No | Archived |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Vinyl chloridecode 2976 | No | Archived |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1-Dichloroethylenecode 2977 | No | Archived |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | cis-1,2-Dichloroethylenecode 2380 | No | Archived |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dichloromethanecode 2964 | No | Archived |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | p-Dichlorobenzenecode 2969 | No | Archived |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chlorobenzenecode 2989 | No | Archived |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylbenzenecode 2992 | No | Archived |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Benzenecode 2990 | No | Archived |
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.
Naselle: frequently asked questions
Who runs Naselle?
Naselle (PWSID WA5358350) is a community water system privately owned. It is regulated by the WA state drinking water program.
How many people does Naselle serve?
Naselle reports serving 2,073 people through 589 service connections in Pacific County, Washington.
Where does Naselle get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Naselle 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 January 2007. 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 Naselle'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 January 2007. For current results, consult the system's annual water quality report, EPA ECHO, or the WA state drinking water program.
Where can I find Naselle's water quality report?
As a community water system, Naselle 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 Pacific County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| North Beach Water | Pacific | 8,093 | Community | Groundwater |
| Long Beach Water Department | Pacific | 4,628 | Community | Surface water |
| Raymond Water Department | Pacific | 4,620 | Community | Surface water |
| South Bend Water Department | Pacific | 2,930 | Community | Surface water |
| Ilwaco Water Department City of | Pacific | 2,757 | Community | Surface water |
| Surfside Homeowners | Pacific | 2,687 | Community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Naselle, PWSID WA5358350, Washington”, https://aquacensus.com/water-systems/washington/naselle-wa5358350 (data as of October 1, 2026).