Public water system · WA5309535
ActiveBurlington Koa
At a glance
Burlington Koa (PWSID WA5309535) is an active transient non-community water system in Skagit County, Washington. It reports serving 254 people through 107 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 9 violations for this system; 1 is health-based, and the most recent began in January 2016.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
254
Service connections
107
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Burlington Koa compare with other water systems in Skagit County?
By EPA's size categories, Burlington Koa is a very small system (500 people or fewer). Skagit County has 85 active public water systems. Its population served is well below the county average of 1,874 people per system, and accounts for 0.2% of the 159,261 people reported by systems filed under the county. Across Washington, the 4,705 active systems average 2,172 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Burlington Koa is about 77% above that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Washington has 1,913 active transient non-community water systems, 41% 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 Burlington Koa?
EPA lists Burlington Koa 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. 68 of the 85 active systems in Skagit County (80%) are also privately owned.
Does Burlington Koa have drinking water violations?
EPA's records list 9 violations for this system; 1 is health-based, and the most recent began in January 2016. The violations listed here began between August 1992 and January 2016. By type: 8 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (8 of them). EPA lists 6 as archived and 3 as resolved. 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. 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 |
|---|---|---|---|---|
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2011-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2010-11-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2003-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1999-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1997-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1995-12-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1992-08-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 9 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.
Burlington Koa: frequently asked questions
Who runs Burlington Koa?
Burlington Koa (PWSID WA5309535) is a transient non-community water system privately owned. It is regulated by the WA state drinking water program.
How many people does Burlington Koa serve?
Burlington Koa reports serving 254 people through 107 service connections in Skagit County, Washington.
Where does Burlington Koa 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 Burlington Koa have any drinking water violations?
EPA's records list 9 violations for this system; 1 is health-based, and the most recent began in January 2016. 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 Burlington Koa'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 9 violations for this system; 1 is health-based, and the most recent began in January 2016. For current results, consult EPA ECHO, or the WA state drinking water program.
Where can I find Burlington Koa's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Burlington Koa is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Skagit County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Skagit County PUD 1 Judy Res | Skagit | 111,415 | Community | Surface water |
| Anacortes City of | Skagit | 25,109 | Community | Surface water |
| Shelter Bay Community Inc. | Skagit | 2,212 | Community | Purchased surface water |
| Skagit Co Water District #1 | Skagit | 1,974 | Community | Groundwater |
| La Conner Water Dept | Skagit | 1,821 | Community | Purchased surface water |
| Blanchard Edison Water Assn. Inc.. | Skagit | 1,480 | 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, “Burlington Koa, PWSID WA5309535, Washington”, https://aquacensus.com/water-systems/washington/burlington-koa-wa5309535 (data as of October 1, 2026).