SAN JUAN BASIN AUTHORITY
PWS ID: CA3010120 · RANCHO SANTA MARGARITA, California 92688
Population Served
0
Total Violations
21
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 2
- County
- Orange
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 14
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Total Haloacetic Acids (HAA5) | MR | 4 | 2018 |
| TTHM | MR | 4 | 2018 |
| Atrazine | MR | 2 | 2006 |
| Antimony, Total | MR | 2 | 2006 |
| Nitrite | MR | 2 | 2006 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.