Water quality in Greenhorn, California
Greenhorn is in Plumas County. 111 active public water systems serve the county; 31 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Plumas County
26 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Plumas Eureka Csd |
334 | 0 | 9.5 mi | |
| American Valley Csd |
3,778 | 1 | 10.2 mi | |
| Evergreen Motel & MHP |
28 | 0 | 11.1 mi | |
| Blairsden Water Users Assn |
200 | 1 | 11.6 mi | |
| Graeagle Water Company |
737 | 0 | 12.7 mi | |
| Feather River RV & MHP |
53 | 1 | 14.0 mi | |
| Arlington Heights MHP |
33 | 0 | 14.4 mi | |
| Clio Public Utility District |
79 | 1 | 14.5 mi | |
| Grizzly Lake Csd-Delleker |
657 | 2 | 15.2 mi | |
| Ivcsd Crescent Mills |
206 | 0 | 15.7 mi | |
| Gold Mountain Csd |
106 | 1 | 15.8 mi | |
| City of Portola Portola |
2,100 | 0 | 16.1 mi | |
| Ivcsd-Greenville |
795 | 0 | 16.2 mi | |
| Grizzly Lake Csd-Crocker/welch |
215 | 2 | 16.2 mi | |
| Frccsd Hot Springs |
25 | 1 | 16.6 mi | |
| Whitehawk Ranch Mwc |
540 | 1 | 17.1 mi | |
| Valivu Estates MHP |
54 | 1 | 17.5 mi | |
| Grizzly Ranch Csd |
118 | 0 | 18.6 mi | |
| Frccsd Old Mill Ranch |
32 | 1 | 18.8 mi | |
| Greenhaven HOA |
38 | 0 | 20.9 mi | |
| Hamilton Branch Csd |
1,874 | 1 | 31.5 mi | |
| Lake Almanor Country Club Mwc |
500 | 1 | 31.6 mi | |
| Meadow Edge MHP |
53 | 1 | 31.9 mi | |
| Walker Ranch Csd |
150 | 0 | 33.2 mi | |
| West Almanor M.w.c. |
1,464 | 0 | 33.3 mi |
Non-community systems in Plumas County (84: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Plumas County, nearest to Greenhorn 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 or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.
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.