All water systems in California
123 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Usfs Sierra NF Nc Buck Meadows · Los Angeles County |
25 | 0 | 0 | |
|
Usfs Sierra NF Nc Jackass Mead · Los Angeles County |
25 | 0 | 0 | |
|
Usfs Sierra NF Nc Bosillo Cg · Los Angeles County |
25 | 0 | 0 | |
|
Plumas Sierra Fairgrounds Plumas County |
24 | 0 | 0 | |
|
Sierra Sunrise Dba Terra D'oro/montevina Amador County |
24 | 0 | 0 | |
|
Sierra Trailer Park Tuolumne County |
21 | 0 | 0 | |
|
Sierra Motel Los Angeles County |
20 | 0 | 0 | |
|
Sierra Pacific Spanish Ranch #1 Plumas County |
20 | 0 | 0 | |
|
Sierra Sky Lodge Nc Nevada Falls · Plumas County |
20 | 0 | 0 | |
|
High Sierra RV & MH Park Madera County |
16 | 0 | 0 | |
|
Sierra Retreat Mono County |
15 | 0 | 0 | |
|
Sierra Glen MHP Tulare County |
10 | 0 | 0 | |
|
Usfs Sierra Saddle Picnic Grou Los Angeles County |
1 | 0 | 0 | |
|
Campbell Hot Springs (sierra) Sierra County |
0 | 0 | 0 | |
|
Sierra Garden Apartments Nc Nevada Falls · Mariposa County |
0 | 0 | 0 | |
|
Sierra Mobile Home Park Fresno County |
0 | 0 | 0 | |
|
Sierra Pacific Industries Sierra County |
0 | 0 | 0 | |
|
Sierra Pacific Industries-Sloat Plumas County |
0 | 0 | 0 | |
|
Usfs Sierra NF Fresno County |
0 | 0 | 0 | |
|
Usfs Sierra NF Fresno County |
0 | 0 | 0 | |
|
Usfs Sierra NF Fresno County |
0 | 0 | 0 | |
|
Usfs Sierra NF Fresno County |
0 | 0 | 0 | |
|
Usfs Sierra NF Fresno 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.