All water systems in California
15 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
CO of San Joaquin San Joaquin County |
400 | 0 | 0 | |
|
San Joaquin Co, Dpt Public Wks Southern Water · San Joaquin County |
400 | 0 | 0 | |
|
San Joaquin County San Joaquin County |
300 | 0 | 0 | |
|
San Joaquin Country Club Fresno County |
250 | 0 | 0 | |
|
San Joaquin County Aviation San Joaquin County |
200 | 0 | 0 | |
|
San Joaquin River Bluff Estates County |
60 | 0 | 0 | |
|
San Joaquin County Schools San Joaquin County |
57 | 0 | 0 | |
|
South San Joaquin Irr Dist San Joaquin County |
55 | 0 | 0 | |
|
San Joaquin Country Club Fresno County |
50 | 0 | 0 | |
|
San Joaquin Delta Farms San Joaquin County |
40 | 0 | 0 | |
|
San Joaquin Experimental Range Fresno County |
26 | 0 | 0 | |
|
Rancho San Joaquin Mutual San Benito County |
25 | 0 | 0 | |
|
San Joaquin Livestock Tulare County |
25 | 0 | 0 | |
|
South San Joaquin Education Center San Joaquin County |
25 | 0 | 0 | |
|
Skydive San Joaquin Valley Kern County |
9 | 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.