Public water system · WA5386200
ActiveSunset Water Association
At a glance
Sunset Water Association (PWSID WA5386200) is an active community water system in Whatcom County, Washington. It reports serving 174 people through 99 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 July 2012.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
174
Service connections
99
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Sunset Water Association compare with other water systems in Whatcom County?
By EPA's size categories, Sunset Water Association is a very small system (500 people or fewer). Whatcom County has 183 active public water systems. Its population served is well below the county average of 1,437 people per system, and accounts for less than 0.1% of the 263,011 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 Sunset Water Association 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 Sunset Water Association?
EPA lists Sunset Water Association 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. 140 of the 183 active systems in Whatcom County (77%) are also privately owned.
Does Sunset Water Association 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 2012. The violations listed here began between January 2008 and July 2012. By type: 10 monitoring and reporting and 2 public notice, recordkeeping or other. The contaminant or rule involved most often is Consumer Confidence Rule (2 of them). 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 |
|---|---|---|---|---|
| 2012-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2010-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloroethanecode 2980 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | p-Dichlorobenzenecode 2969 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Benzenecode 2990 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Tetrachloroethylenecode 2987 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chlorobenzenecode 2989 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloropropanecode 2983 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,2-Trichloroethanecode 2985 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylbenzenecode 2992 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Carbon tetrachloridecode 2982 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toluenecode 2991 | 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.
Sunset Water Association: frequently asked questions
Who runs Sunset Water Association?
Sunset Water Association (PWSID WA5386200) is a community water system privately owned. It is regulated by the WA state drinking water program.
How many people does Sunset Water Association serve?
Sunset Water Association reports serving 174 people through 99 service connections in Whatcom County, Washington.
Where does Sunset Water Association 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 Sunset Water Association 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 2012. 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 Sunset Water Association'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 2012. For current results, consult the system's annual water quality report, EPA ECHO, or the WA state drinking water program.
Where can I find Sunset Water Association's water quality report?
As a community water system, Sunset Water Association 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 Whatcom County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Bellingham-Water Division City of | Whatcom | 141,127 | Community | Surface water |
| Lynden Water Department | Whatcom | 20,062 | Community | Surface water |
| Ferndale | Whatcom | 19,305 | Community | Groundwater |
| Lwwsd - South Shore Water System | Whatcom | 10,028 | Community | Surface water |
| Birch Bay Water & Sewer District | Whatcom | 9,046 | Community | Purchased groundwater |
| Blaine City of | Whatcom | 6,319 | 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, “Sunset Water Association, PWSID WA5386200, Washington”, https://aquacensus.com/water-systems/washington/sunset-water-association-wa5386200 (data as of October 1, 2026).