COUNTY WATER-SYSTEM LEDGER
Humboldt, California
EPA’s September 2026 export lists 6 active community water systems serving Humboldt, California, with 0 current-violation flags and 0 serious-violator flags among the covered systems.
Source: EPA SDWIS system-search export · Active community systems serving 2,500+ people · Snapshot 13 Sep 2026
01 / SYSTEMS
Water systems serving Humboldt, California
EPA associates 6 covered systems with Humboldt, California; their reported population-served values total 100,093 and may overlap.
Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| Eureka, City OfCA1210004 | 27,078 | Ground water purchased | No current violation flagged |
| Arcata, City OfCA1210001 | 20,875 | Ground water purchased | No current violation flagged |
| Humboldt C.S.D.CA1210009 | 19,807 | Ground water | No current violation flagged |
| Mckinleyville C.S.D.CA1210016 | 16,900 | Ground water purchased | No current violation flagged |
| Fortuna, City OfCA1210006 | 12,133 | Ground water | No current violation flagged |
| Rio Dell, City OfCA1210012 | 3,300 | Surface water | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Humboldt, California
EPA classifies 6 systems serving Humboldt, California across 3 primary-source categories; Ground water purchased is the largest category with 3 systems.
It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.