Water quality for ZIP code 95309
ZIP 95309 covers Chinese Camp in Tuolumne County, California, one of 14 ZIP codes in the county. 120 active public water systems serve the county; 95 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Tuolumne County
48 systems, largest first| System | Serves | Status | Rules violated, 3 yr |
|---|---|---|---|
| Tud Sonora/jamestown Water System |
11,113 | 1 | |
| Tud Columbia Water System |
5,482 | 1 | |
| Cdcr Sierra Conservation Center |
3,571 | 0 | |
| Groveland Community Serv Dist |
3,400 | 2 | |
| Twain Harte Community Services District |
2,378 | 1 | |
| Tud Tuolumne Water System Sonora |
1,798 | 1 | |
| Tud Ponderosa |
1,781 | 1 | |
| Cold Springs Water CO |
1,771 | 1 | |
| Lake Don Pedro Csd |
1,700 | 3 | |
| Phoenix Lake Estates CC Mwc |
1,168 | 1 | |
| Sonora Meadows Mutual Wtr CO |
1,123 | 2 | |
| MI Wuk Village Mut Wtr CO |
1,076 | 1 | |
| Tud-Apple Valley Estates |
829 | 1 | |
| Sonora Water Resources, INC |
785 | 0 | |
| Belleview Oaks Mutual Water CO |
468 | 1 | |
| MI Wuk Heights Mwc |
445 | 0 | |
| Slide Inn Snowbowl Water CO |
417 | 1 | |
| Del Oro Water Company Strawberry Div. |
386 | 1 | |
| Leisure Pines Mutual Water CO |
340 | 3 | |
| Cascade Estates |
316 | 1 | |
| Peppermint Creek MHP |
280 | 2 | |
| Rawhide Mutual Water Company |
269 | 1 | |
| Sierra Village Mutual Water CO |
264 | 1 | |
| Bluebell Valley Mwc |
252 | 1 | |
| Sonora Estates Mobile Home Park |
235 | 1 |
Non-community systems in Tuolumne County (71: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Tuolumne County, the county this ZIP code lies in, largest 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.
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.