All water systems in California
13 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Mariposa County Fairground Mariposa County |
1,000 | 0 | 0 | |
|
Mariposa Pines Mutual Water CO Mariposa County |
200 | 0 | 0 | |
|
Mariposa Unified School Dist Mariposa County |
200 | 0 | 0 | |
|
Mariposa County Unified Mariposa County |
150 | 0 | 0 | |
|
Mariposa County Road Dept Mariposa County |
100 | 0 | 0 | |
|
Mariposa Pines Mutual Water CO Mariposa County |
80 | 0 | 0 | |
|
Mariposa Lutheran Church Mariposa County |
60 | 0 | 0 | |
|
Mariposa Institute Mendocino County |
42 | 0 | 0 | |
|
Mariposa Mobile Manor Mariposa County |
32 | 0 | 0 | |
|
Mariposa Mobile Manor Mariposa County |
32 | 0 | 0 | |
|
Mariposa Manor Mariposa County |
30 | 0 | 0 | |
|
Mariposa Pines Villa Nc Nevada Falls · Mariposa County |
28 | 1 | 1 | |
|
Mariposa Usd Jesse B. Fremont School 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.