Water quality for ZIP code 95480
Sonoma County, California, one of 38 ZIP codes in the county. 445 active public water systems serve the county; 76 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Sonoma County
128 systems, largest first| System | Serves | Status | Rules violated, 3 yr |
|---|---|---|---|
| Petaluma, City of Petaluma |
61,427 | 0 | |
| Rohnert Park, City of Rohnert Park |
43,821 | 0 | |
| Windsor, Town of |
25,561 | 0 | |
| Valley of the Moon Water District |
23,140 | 0 | |
| Healdsburg, City of Healdsburg |
10,972 | 0 | |
| Sonoma, City of Sonoma |
10,619 | 1 | |
| Cloverdale, City of Cloverdale |
8,710 | 1 | |
| California-American Larkfield (puc) |
7,911 | 0 | |
| Sebastopol, City of Sebastopol |
7,522 | 0 | |
| Cotati, City of Cotati |
7,290 | 0 | |
| Sweetwater Springs Cwd Guerneville |
5,156 | 0 | |
| Russian River County Water District |
4,150 | 0 | |
| Forestville Water District |
3,717 | 1 | |
| Sweetwater Springs Cwd Monte Rio |
3,531 | 0 | |
| Penngrove Water Company (puc) |
1,742 | 0 | |
| Sonoma State University |
1,500 | 0 | |
| Sea Ranch Water Company,the (puc) |
1,287 | 3 | |
| Camp Meeker Water System |
1,171 | 0 | |
| Sonoma County Csa 41-Fitch Mountain |
1,115 | 1 | |
| Bodega Bay Public Utility District |
1,069 | 0 | |
| California-American Geyserville (puc) |
1,050 | 0 | |
| Kenwood Village Water Company (puc) |
1,029 | 0 | |
| Canon Manor Water System |
828 | 0 | |
| Moon Valley Water System |
691 | 0 | |
| Diamond a Mutual Water Company |
640 | 1 |
Non-community systems in Sonoma County (316: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Sonoma 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.