Public water system · WA5372835

Active

Rivershore Water District #1

At a glance

Rivershore Water District #1 (PWSID WA5372835) is an active transient non-community water system in Snohomish County, Washington. It reports serving 572 people through 13 service connections. Its primary water source is purchased 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 April 2022.

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

Population served

572

Service connections

Primary source

SWP

Purchased surface water

System type

TNCWS

Transient non-community water system

System record

PWSIDWA5372835

System typeTransient non-community water system

Activity statusActive

Population served572

Service connections13

Primary water sourcePurchased surface water

Owner typePrivate

Primacy agencyWA state drinking water program

City served—

StateWashington

ZIP—

CountySnohomish County

How does Rivershore Water District #1 compare with other water systems in Snohomish County?

By EPA's size categories, Rivershore Water District #1 is a small system (501 to 3,300 people). Snohomish County has 167 active public water systems. Its population served is well below the county average of 6,200 people per system, and accounts for less than 0.1% of the 1,035,433 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 Rivershore Water District #1 is about 4 times 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. 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 Rivershore Water District #1?

EPA lists Rivershore Water District #1 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. 126 of the 167 active systems in Snohomish County (75%) are also privately owned.

Does Rivershore Water District #1 have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in April 2022. The violations listed here began between June 2011 and April 2022. By type: 6 monitoring and 6 monitoring and reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (6 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
2022-04-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2022-02-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2020-06-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2020-04-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2020-03-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2017-07-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2015-07-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2015-05-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2014-07-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2013-08-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2012-07-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2011-06-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	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.

Rivershore Water District #1: frequently asked questions

Who runs Rivershore Water District #1?

Rivershore Water District #1 (PWSID WA5372835) is a transient non-community water system privately owned. It is regulated by the WA state drinking water program.

How many people does Rivershore Water District #1 serve?

Rivershore Water District #1 reports serving 572 people through 13 service connections in Snohomish County, Washington.

Where does Rivershore Water District #1 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 Rivershore Water District #1 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 April 2022. 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 Rivershore Water District #1'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 April 2022. For current results, consult EPA ECHO, or the WA state drinking water program.

Where can I find Rivershore Water District #1's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Rivershore Water District #1 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 Snohomish County

Water system	County	Population served	Type	Source
Alderwood Water District	Snohomish	245,715	Community	Purchased surface water
Everett Public Works Dept. City of	Snohomish	215,774	Community	Surface water
Marysville Utilities	Snohomish	88,582	Community	Purchased surface water
Lynnwood City of	Snohomish	68,204	Community	Purchased surface water
Sno PUD 1 - Lake Stevens	Snohomish	67,710	Community	Purchased surface water
Silver Lake Water & Sewer District	Snohomish	65,033	Community	Purchased surface water

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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, “Rivershore Water District #1, PWSID WA5372835, Washington”, https://aquacensus.com/water-systems/washington/rivershore-water-district-1-wa5372835 (data as of October 1, 2026).