CAL AMERICAN WATER COMPANY - PIRU
PWS ID: CA5610021 · ROSEMEAD, California 91770
Population Served
2,003
Total Violations
6
Health-Based Violations
2
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 613
- County
- Ventura
- School/Daycare
- No
- MCL Violations
- 2
- Monitoring Violations
- 4
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 2 | 1998 |
| Coliform (TCR) | MCL | 2 | 2002 |
| Revised Total Coliform Rule | MON | 2 | 2021 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.