Water quality in Westhaven-Moonstone, California
Westhaven-Moonstone 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
Other community water systems in Humboldt County
43 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Westhaven C.s.d. |
490 | 1 | 0.9 mi | |
| Trinidad, City of Trinidad |
1,072 | 2 | 3.1 mi | |
| Trinidad Extended Stay RV |
130 | 1 | 3.6 mi | |
| Seawood Estates Mutual Water Company |
63 | 1 | 5.2 mi | |
| McKinleyville C.s.d. |
16,900 | 0 | 5.7 mi | |
| Fieldbrook Glendale C.s.d. |
1,845 | 1 | 7.0 mi | |
| Beach Creek Mobile Home Park |
67 | 1 | 7.0 mi | |
| Big Lagoon Csd |
112 | 0 | 8.5 mi | |
| Big Lagoon Park Water Co. |
20 | 0 | 8.9 mi | |
| Blue Lake, City of Blue Lake |
1,172 | 1 | 11.7 mi | |
| Arcata, City of Arcata |
18,857 | 1 | 11.8 mi | |
| Manila Community Services Dist. |
798 | 0 | 13.0 mi | |
| Green Diamond Resource Company Korbel |
250 | 0 | 13.2 mi | |
| Jacoby Creek Cwd |
924 | 0 | 13.5 mi | |
| Humboldt Bay Mwd |
680 | 0 | 15.0 mi | |
| Eureka, City of Eureka |
27,078 | 0 | 16.8 mi | |
| Orick C.s.d. |
328 | 0 | 17.7 mi | |
| Humboldt C.s.d. |
19,775 | 2 | 19.8 mi | |
| Willow Creek C.s.d. |
1,720 | 1 | 24.5 mi | |
| Loleta C.s.d. |
828 | 0 | 28.0 mi | |
| Palmer Creek Csd |
320 | 4 | 29.8 mi | |
| Fortuna, City of Fortuna |
12,133 | 0 | 31.2 mi | |
| Riverside Csd |
333 | 0 | 31.9 mi | |
| Mill Creek M.w.c. |
85 | 2 | 32.4 mi | |
| Del Oro Water Co-Ferndale |
1,662 | 0 | 32.5 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 Westhaven-Moonstone 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. Retrieved from ECHO on Oct 11, 2026.