Public water system · WA5348250
ActiveStevens Co PUD - Loon Lake
At a glance
Stevens Co PUD - Loon Lake (PWSID WA5348250) is an active community water system in Stevens County, Washington. It reports serving 2,487 people through 842 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in September 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,487
Service connections
842
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Stevens Co PUD - Loon Lake compare with other water systems in Stevens County?
By EPA's size categories, Stevens Co PUD - Loon Lake is a small system (501 to 3,300 people). Stevens County has 65 active public water systems, and Stevens Co PUD - Loon Lake is the 6th-largest of them by population served. Its population served is about 4.9 times the county average of 513 people per system, and accounts for 7.5% of the 33,324 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 Stevens Co PUD - Loon Lake is about 63% 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 Stevens Co PUD - Loon Lake?
EPA lists Stevens Co PUD - Loon Lake 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. 21 of the 65 active systems in Stevens County (32%) are also owned by a local government.
Does Stevens Co PUD - Loon Lake have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in September 2023. The violations listed here began between October 2007 and September 2023. By type: 11 monitoring and reporting and 1 monitoring. The contaminants or rules involved are Revised Total Coliform Rule, Oxamyl, Aldicarb sulfone and Aldicarb. EPA lists 7 as resolved and 5 as archived. 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. 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 |
|---|---|---|---|---|
| 2023-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Oxamylcode 2036 | No | Archived |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Aldicarb sulfonecode 2044 | No | Archived |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Aldicarbcode 2047 | No | Archived |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Carbofurancode 2046 | No | Archived |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Aldicarb sulfoxidecode 2043 | No | Archived |
| 2007-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Benzenecode 2990 | No | Resolved |
| 2007-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Vinyl chloridecode 2976 | No | Resolved |
| 2007-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toluenecode 2991 | No | Resolved |
| 2007-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,2-Trichloroethanecode 2985 | No | Resolved |
| 2007-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Tetrachloroethylenecode 2987 | No | Resolved |
| 2007-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2,4-Trichlorobenzenecode 2378 | 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.
Stevens Co PUD - Loon Lake: frequently asked questions
Who runs Stevens Co PUD - Loon Lake?
Stevens Co PUD - Loon Lake (PWSID WA5348250) is a community water system owned by a local government. It is regulated by the WA state drinking water program.
How many people does Stevens Co PUD - Loon Lake serve?
Stevens Co PUD - Loon Lake reports serving 2,487 people through 842 service connections in Stevens County, Washington.
Where does Stevens Co PUD - Loon Lake 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 Stevens Co PUD - Loon Lake 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 September 2023. 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 Stevens Co PUD - Loon Lake'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 September 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the WA state drinking water program.
Where can I find Stevens Co PUD - Loon Lake's water quality report?
As a community water system, Stevens Co PUD - Loon Lake 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 Stevens County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Stevens Co PUD - Suncrest | Stevens | 7,484 | Community | Groundwater |
| Colville Water Department | Stevens | 4,945 | Community | Groundwater |
| Stevens Co PUD - Deer Lake | Stevens | 2,884 | Community | Groundwater |
| Kettle Falls Water Dept | Stevens | 2,698 | Community | Groundwater |
| Chewelah Water Dept South | Stevens | 2,615 | Community | Groundwater |
| Stevens Co PUD - Waitts Lake | Stevens | 1,216 | 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, “Stevens Co PUD - Loon Lake, PWSID WA5348250, Washington”, https://aquacensus.com/water-systems/washington/stevens-co-pud-loon-lake-wa5348250 (data as of October 1, 2026).