Water quality for ZIP code 95570
ZIP 95570 covers Westhaven-Moonstone, Big Lagoon, and Trinidad in Humboldt County, California, one of 35 ZIP codes in the 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 |
|---|---|---|---|---|
| Seawood Estates Mutual Water Company |
63 | 1 | 1.5 mi | |
| Trinidad, City of Trinidad |
1,072 | 2 | 1.7 mi | |
| Beach Creek Mobile Home Park |
67 | 1 | 3.5 mi | |
| Westhaven C.s.d. |
490 | 1 | 4.1 mi | |
| Moonstone Heights Mwa |
33 | 1 | 4.4 mi | |
| Big Lagoon Csd |
112 | 0 | 5.8 mi | |
| Big Lagoon Park Water Co. |
20 | 0 | 6.1 mi | |
| McKinleyville C.s.d. |
16,900 | 0 | 9.3 mi | |
| Fieldbrook Glendale C.s.d. |
1,845 | 1 | 11.5 mi | |
| Manila Community Services Dist. |
798 | 0 | 15.2 mi | |
| Arcata, City of Arcata |
18,857 | 1 | 15.2 mi | |
| Orick C.s.d. |
328 | 0 | 15.7 mi | |
| Blue Lake, City of Blue Lake |
1,172 | 1 | 16.1 mi | |
| Jacoby Creek Cwd |
924 | 0 | 17.1 mi | |
| Green Diamond Resource Company Korbel |
250 | 0 | 17.7 mi | |
| Humboldt Bay Mwd |
680 | 0 | 18.7 mi | |
| Eureka, City of Eureka |
27,078 | 0 | 19.2 mi | |
| Humboldt C.s.d. |
19,775 | 2 | 22.2 mi | |
| Willow Creek C.s.d. |
1,720 | 1 | 28.9 mi | |
| Loleta C.s.d. |
828 | 0 | 30.1 mi | |
| Palmer Creek Csd |
320 | 4 | 32.2 mi | |
| Riverside Csd |
333 | 0 | 33.6 mi | |
| Fortuna, City of Fortuna |
12,133 | 0 | 33.8 mi | |
| Del Oro Water Co-Ferndale |
1,662 | 0 | 34.4 mi | |
| Orleans Mutual Water Company |
85 | 2 | 35.0 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, the county this ZIP code lies in, nearest to the ZIP code's centre 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.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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.