CALLAYOMI COUNTY WATER DISTRICT
PWS ID: CA1710013 · MIDDLETOWN, California 95461
Population Served
1,598
Total Violations
8
Health-Based Violations
5
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 534
- County
- Lake
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 2
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 4 | 1995 |
| Coliform (TCR) | MR | 2 | 2000 |
| LEAD AND COPPER RULE REVISIONS | RPT | 1 | 2024 |
| LEAD AND COPPER RULE REVISIONS | TT | 1 | 2024 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.