Public water system · WA5341650

Active

Covington Water District

At a glance

Covington Water District (PWSID WA5341650) is an active community water system in King County, Washington. It reports serving 56,172 people through 19,829 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in November 2006.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

56,172

Service connections

19,829

Primary source

SWP

Purchased surface water

System type

CWS

Community water system

System record

PWSIDWA5341650

System typeCommunity water system

Activity statusActive

Population served56,172

Service connections19,829

Primary water sourcePurchased surface water

Owner typeLocal government

Primacy agencyWA state drinking water program

City served—

StateWashington

ZIP—

CountyKing County

How does Covington Water District compare with other water systems in King County?

By EPA's size categories, Covington Water District is a large system (10,001 to 100,000 people). King County has 214 active public water systems. Its population served is about 3.6 times the county average of 15,523 people per system, and accounts for 1.7% of the 3,321,960 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 Covington Water District is about 8.4 times 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 130 Washington systems (2.8%) list purchased surface water as their primary source.

Who owns and regulates Covington Water District?

EPA lists Covington Water District 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. 58 of the 214 active systems in King County (27%) are also owned by a local government.

Does Covington Water District have drinking water violations?

Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in November 2006. The violations listed here began between November 1991 and November 2006. By type: 6 contaminant level above the legal limit and 6 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (12 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
2006-11-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Archived
1995-12-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21	Total coliform bacteria (TCR)code 3100	Yes	Archived
1995-06-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Archived
1994-10-19	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived
1993-06-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Archived
1992-12-01	Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26	Total coliform bacteria (TCR)code 3100	No	Archived
1992-05-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Archived
1992-04-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Archived
1992-03-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Archived
1992-02-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Archived
1991-12-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Archived
1991-11-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	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.

Covington Water District: frequently asked questions

Who runs Covington Water District?

Covington Water District (PWSID WA5341650) is a community water system owned by a local government. It is regulated by the WA state drinking water program.

How many people does Covington Water District serve?

Covington Water District reports serving 56,172 people through 19,829 service connections in King County, Washington.

Where does Covington Water District get its water?

EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.

Does Covington Water District have any drinking water violations?

Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in November 2006. 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 Covington Water District'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, 6 are health-based, and the most recent began in November 2006. For current results, consult the system's annual water quality report, EPA ECHO, or the WA state drinking water program.

Where can I find Covington Water District's water quality report?

As a community water system, Covington Water District 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 King County

Water system	County	Population served	Type	Source
Seattle Public Utilities	King	1,161,961	Community	Surface water
Bellevue City of	King	321,349	Community	Purchased surface water
Kent Water Department	King	166,421	Community	Purchased surface water
Redmond Water System City of	King	163,335	Community	Purchased surface water
Lakehaven Water and Sewer District	King	148,809	Community	Purchased surface water
Renton City of	King	108,091	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, “Covington Water District, PWSID WA5341650, Washington”, https://aquacensus.com/water-systems/washington/covington-water-district-wa5341650 (data as of October 1, 2026).