Public water system · CA1210007
ActiveDel Oro Water Co-Ferndale
At a glance
Del Oro Water Co-Ferndale (PWSID CA1210007) is an active community water system in Humboldt County, California. It reports serving 1,662 people through 778 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,662
Service connections
778
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Del Oro Water Co-Ferndale compare with other water systems in Humboldt County?
By EPA's size categories, Del Oro Water Co-Ferndale is a small system (501 to 3,300 people). Humboldt County has 90 active public water systems. Its population served is about 12% above the county average of 1,486 people per system, and accounts for 1.2% 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 Del Oro Water Co-Ferndale 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,179 California systems (83%) list groundwater as their primary source.
Who owns and regulates Del Oro Water Co-Ferndale?
EPA lists Del Oro Water Co-Ferndale as privately owned. 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. 41 of the 90 active systems in Humboldt County (46%) are also privately owned.
Does Del Oro Water Co-Ferndale have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Del Oro Water Co-Ferndale. For the latest compliance status, check EPA ECHO for current compliance history.
Del Oro Water Co-Ferndale: frequently asked questions
Who runs Del Oro Water Co-Ferndale?
Del Oro Water Co-Ferndale (PWSID CA1210007) is a community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Del Oro Water Co-Ferndale serve?
Del Oro Water Co-Ferndale reports serving 1,662 people through 778 service connections in Humboldt County, California.
Where does Del Oro Water Co-Ferndale 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 Del Oro Water Co-Ferndale have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Del Oro Water Co-Ferndale'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 Safe Drinking Water Act records list no violations for this system. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Del Oro Water Co-Ferndale's water quality report?
As a community water system, Del Oro Water Co-Ferndale 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, “Del Oro Water Co-Ferndale, PWSID CA1210007, California”, https://aquacensus.com/water-systems/california/del-oro-water-co-ferndale-ca1210007 (data as of October 1, 2026).