SIERRA WATER RESOURCES - SIERRA CITY
PWS ID: CA4600017 · CLAREMONT, California 91711
Population Served
324
Total Violations
105
Health-Based Violations
43
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 120
- County
- Sierra
- School/Daycare
- No
- MCL Violations
- 43
- Monitoring Violations
- 35
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 43 | 2015 |
| Coliform (TCR) | MR | 30 | 2015 |
| Revised Total Coliform Rule | MON | 2 | 2017 |
| Gross Alpha, Excl. Radon and U | MR | 2 | 1981 |
| Lead and Copper Rule | MR | 1 | 1993 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.