Public water system · CA1210002
ActiveBlue Lake, City of
At a glance
City of Blue Lake (PWSID CA1210002) is an active community water system in Humboldt County, California. It reports serving 1,172 people through 730 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in June 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,172
Service connections
730
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does City of Blue Lake compare with other water systems in Humboldt County?
By EPA's size categories, City of Blue Lake is a small system (501 to 3,300 people). Humboldt County has 90 active public water systems. Its population served is about 21% below the county average of 1,486 people per system, and accounts for 0.9% of the 133,779 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active community water system reports serving 6,703 people, so City of Blue Lake 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. California has 2,997 active community water systems, 40% of the state's 7,479 active systems. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 76 California systems (1%) list purchased groundwater as their primary source.
Who owns and regulates City of Blue Lake?
EPA lists City of Blue Lake as owned by a local government. The CA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 33 of the 90 active systems in Humboldt County (37%) are also owned by a local government.
Does City of Blue Lake have drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in June 2025. The violations listed here began between June 1993 and June 2025. By type: 1 monitoring and 1 required treatment not met. The contaminants or rules involved are Revised Total Coliform Rule and Surface Water Treatment Rule. EPA lists 2 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 |
|---|---|---|---|---|
| 2025-06-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 1993-06-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
All 2 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.
City of Blue Lake: frequently asked questions
Who runs City of Blue Lake?
City of Blue Lake (PWSID CA1210002) is a community water system owned by a local government. It is regulated by the CA state drinking water program.
How many people does City of Blue Lake serve?
City of Blue Lake reports serving 1,172 people through 730 service connections in Humboldt County, California.
Where does City of Blue Lake get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does City of Blue Lake have any drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in June 2025. 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 City of Blue 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. EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in June 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find City of Blue Lake's water quality report?
As a community water system, City of Blue 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 Humboldt County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Eureka, City of | Humboldt | 27,078 | Community | Purchased groundwater |
| Arcata, City of | Humboldt | 20,875 | Community | Purchased groundwater |
| Humboldt C.S.D. | Humboldt | 19,807 | Community | Groundwater |
| Mckinleyville C.S.D. | Humboldt | 16,900 | Community | Purchased groundwater |
| Fortuna, City of | Humboldt | 12,133 | Community | Groundwater |
| Rio Dell, City of | Humboldt | 3,300 | Community | 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, “Blue Lake, City of, PWSID CA1210002, California”, https://aquacensus.com/water-systems/california/blue-lake-city-of-ca1210002 (data as of October 1, 2026).