All water systems in California
28 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Sonoma State College Sonoma County |
6,600 | 0 | 0 | |
|
Sonoma State Hospital Sonoma County |
3,970 | 0 | 0 | |
|
Sonoma Coast State Beach Sonoma County |
2,550 | 0 | 0 | |
|
Sonoma Coast S.b. Bodega Dune Sonoma County |
1,561 | 0 | 0 | |
|
Sonoma Developmental Center Sonoma County |
1,500 | 0 | 0 | |
|
Sonoma Village Riverside County |
663 | 0 | 0 | |
|
Sonoma Transfer Station Sonoma County |
500 | 0 | 0 | |
|
Sonoma Country Inn County |
150 | 0 | 0 | |
|
Port Sonoma Marina Sonoma County |
100 | 0 | 0 | |
|
Sonoma Creek Winery Sonoma County |
100 | 0 | 0 | |
|
Sonoma Mission Apartments Sonoma County |
100 | 0 | 0 | |
|
Sonoma Mission Inn Sonoma County |
100 | 0 | 0 | |
|
Sonoma Developmental Center Sonoma County |
71 | 0 | 0 | |
|
Camp Via at Sonoma State Hospi Sonoma County |
40 | 0 | 0 | |
|
Sonoma Cutrer Sonoma County |
40 | 0 | 0 | |
|
Full Circle Sonoma Sonoma County |
30 | 0 | 0 | |
|
Sonoma County Parks-Pythian Trailhead Sonoma County |
26 | 0 | 0 | |
|
Cazsonoma Inn Sonoma County |
25 | 0 | 0 | |
|
Csp Sonoma Coast S. B. Sonoma County |
25 | 0 | 0 | |
|
Sonoma County Office of Emergency Sonoma County |
25 | 0 | 0 | |
|
Sonoma Joe's Sonoma County |
25 | 0 | 0 | |
|
Sonoma Sky Park Sonoma County |
25 | 0 | 0 | |
|
Sonoma State Historic Park Sonoma County |
25 | 0 | 0 | |
|
The Ranch Sonoma County |
25 | 0 | 0 | |
|
Lake Sonoma Resort Sonoma County |
0 | 0 | 0 | |
|
Rancho de Sonoma Inactive Sonoma County |
0 | 0 | 0 | |
|
Sonoma Acres County |
0 | 0 | 0 | |
|
Sonoma Developmental Center-Camp Via Sonoma County |
0 | 0 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules currently in violation at EPA's latest data refresh.
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.