Water quality in Penn Valley, California
Penn Valley is in Nevada County. 84 active public water systems serve the county; 21 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 Nevada County
20 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Sierra Estates Mutual Water Company |
100 | 2 | 0.8 mi | |
| Creekside Village |
300 | 0 | 1.0 mi | |
| Rough & Ready Village |
154 | 1 | 3.8 mi | |
| Yulica |
25 | 0 | 7.0 mi | |
| City of Grass Valley Grass Valley |
4,947 | 0 | 7.1 mi | |
| Christian Encounter Ministries |
35 | 0 | 7.3 mi | |
| Nevada ID E. George, Banner Mountain |
17,154 | 0 | 8.2 mi | |
| Nevada ID Loma Rica |
14,072 | 0 | 8.8 mi | |
| City of Nevada City Nevada City |
3,148 | 0 | 10.4 mi | |
| Gold Country Home Park Water System |
60 | 0 | 12.7 mi | |
| Shady Lake Water Association |
90 | 0 | 13.0 mi | |
| Nevada ID Lake of Pines |
6,870 | 0 | 13.0 mi | |
| Ananda Village |
226 | 0 | 14.2 mi | |
| Washington Ridge C.c. |
70 | 1 | 15.9 mi | |
| Washington Water District |
330 | 3 | 25.0 mi | |
| Plavada Community Association |
126 | 0 | 41.1 mi | |
| Donner Summit Public Utility District |
98 | 0 | 45.7 mi | |
| Truckee-Donner Pud, Main |
36,730 | 0 | 54.1 mi | |
| Truckee-Donner Pud Hirschdale |
85 | 0 | 60.9 mi | |
| Floriston Water System |
110 | 3 | 64.2 mi |
Non-community systems in Nevada County (63: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Nevada County, nearest to Penn Valley 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.