Water quality for ZIP code 95949
ZIP 95949 covers Alta Sierra and Grass Valley in Nevada County, California, one of 8 ZIP codes in the county. 84 active public water systems serve the county; 21 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Nevada County
20 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Nevada ID Loma Rica |
14,072 | 0 | 5.8 mi | |
| Nevada ID Lake of Pines |
6,870 | 0 | 5.9 mi | |
| Sierra Estates Mutual Water Company |
100 | 2 | 6.6 mi | |
| Creekside Village |
300 | 0 | 7.2 mi | |
| City of Grass Valley Grass Valley |
4,947 | 0 | 8.7 mi | |
| Rough & Ready Village |
154 | 1 | 8.9 mi | |
| Nevada ID Lake Wildwood |
9,108 | 0 | 9.6 mi | |
| Nevada ID E. George, Banner Mountain |
17,154 | 0 | 10.6 mi | |
| Yulica |
25 | 0 | 11.6 mi | |
| City of Nevada City Nevada City |
3,148 | 0 | 12.7 mi | |
| Washington Ridge C.c. |
70 | 1 | 17.9 mi | |
| Gold Country Home Park Water System |
60 | 0 | 18.5 mi | |
| Shady Lake Water Association |
90 | 0 | 18.8 mi | |
| Ananda Village |
226 | 0 | 19.1 mi | |
| Washington Water District |
330 | 3 | 26.3 mi | |
| Plavada Community Association |
126 | 0 | 40.1 mi | |
| Donner Summit Public Utility District |
98 | 0 | 44.6 mi | |
| Truckee-Donner Pud, Main |
36,730 | 0 | 52.8 mi | |
| Truckee-Donner Pud Hirschdale |
85 | 0 | 59.6 mi | |
| Floriston Water System |
110 | 3 | 63.0 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, 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.