Water quality in McKinleyville, California
McKinleyville is in Humboldt County. 90 active public water systems serve the county; 40 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Humboldt County
43 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Fieldbrook Glendale C.s.d. |
1,845 | 1 | 2.8 mi | |
| Moonstone Heights Mwa |
33 | 1 | 5.7 mi | |
| Arcata, City of Arcata |
18,857 | 1 | 5.9 mi | |
| Westhaven C.s.d. |
490 | 1 | 6.1 mi | |
| Blue Lake, City of Blue Lake |
1,172 | 1 | 6.5 mi | |
| Jacoby Creek Cwd |
924 | 0 | 7.7 mi | |
| Manila Community Services Dist. |
798 | 0 | 8.0 mi | |
| Trinidad, City of Trinidad |
1,072 | 2 | 8.2 mi | |
| Green Diamond Resource Company Korbel |
250 | 0 | 8.3 mi | |
| Trinidad Extended Stay RV |
130 | 1 | 8.9 mi | |
| Humboldt Bay Mwd |
680 | 0 | 9.2 mi | |
| Seawood Estates Mutual Water Company |
63 | 1 | 10.7 mi | |
| Eureka, City of Eureka |
27,078 | 0 | 11.4 mi | |
| Beach Creek Mobile Home Park |
67 | 1 | 12.7 mi | |
| Humboldt C.s.d. |
19,775 | 2 | 14.2 mi | |
| Big Lagoon Csd |
112 | 0 | 14.4 mi | |
| Big Lagoon Park Water Co. |
20 | 0 | 14.8 mi | |
| Loleta C.s.d. |
828 | 0 | 22.7 mi | |
| Willow Creek C.s.d. |
1,720 | 1 | 23.3 mi | |
| Orick C.s.d. |
328 | 0 | 23.5 mi | |
| Palmer Creek Csd |
320 | 4 | 24.2 mi | |
| Fortuna, City of Fortuna |
12,133 | 0 | 25.4 mi | |
| Mill Creek M.w.c. |
85 | 2 | 26.5 mi | |
| Riverside Csd |
333 | 0 | 26.8 mi | |
| Del Oro Water Co-Ferndale |
1,662 | 0 | 27.2 mi |
Non-community systems in Humboldt County (46: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Humboldt County, nearest to McKinleyville first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The California records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.