Public water system · WA53AB738
ActiveCommon Field Water System
At a glance
Common Field Water System (PWSID WA53AB738) is an active community water system in San Juan County, Washington. It reports serving 36 people through 29 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
36
Service connections
29
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Common Field Water System compare with other water systems in San Juan County?
By EPA's size categories, Common Field Water System is a very small system (500 people or fewer). San Juan County has 112 active public water systems. Its population served is well below the county average of 361 people per system, and accounts for less than 0.1% of the 40,377 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 Common Field Water System 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 Common Field Water System?
EPA lists Common Field Water System 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. 92 of the 112 active systems in San Juan County (82%) are also privately owned.
Does Common Field Water System have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Common Field Water System. For the latest compliance status, check EPA ECHO for current compliance history.
Common Field Water System: frequently asked questions
Who runs Common Field Water System?
Common Field Water System (PWSID WA53AB738) is a community water system privately owned. It is regulated by the WA state drinking water program.
How many people does Common Field Water System serve?
Common Field Water System reports serving 36 people through 29 service connections in San Juan County, Washington.
Where does Common Field Water System 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 Common Field Water System have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Common Field Water System'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 Safe Drinking Water Act records list no violations for this system. For current results, consult the system's annual water quality report, EPA ECHO, or the WA state drinking water program.
Where can I find Common Field Water System's water quality report?
As a community water system, Common Field Water System 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 San Juan County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Moran State Park-Mountain Lake | San Juan | 4,804 | Transient non-community | Surface water |
| Moran State Park - Summit Lake | San Juan | 4,803 | Transient non-community | Groundwater under influence of surface water |
| Moran State Park-Cascade Lake | San Juan | 4,783 | Transient non-community | Surface water |
| Eastsound Water Users Association | San Juan | 3,711 | Community | Surface water |
| Friday Harbor Town of | San Juan | 3,543 | Community | Surface water |
| Limekiln State Park | San Juan | 2,149 | 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, “Common Field Water System, PWSID WA53AB738, Washington”, https://aquacensus.com/water-systems/washington/common-field-water-system-wa53ab738 (data as of October 1, 2026).