HOPLAND PUBLIC UTILITY DISTRICT
PWS ID: CA2310010 · UKIAH, California 95482
Population Served
1,076
Total Violations
27
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 347
- County
- Mendocino
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 17
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 10 | 2005 |
| Lead and Copper Rule | MR | 3 | 2001 |
| Consumer Confidence Rule | Other | 2 | 2001 |
| Total Haloacetic Acids (HAA5) | MR | 2 | 2005 |
| TTHM | MR | 2 | 2005 |
| Public Notice | Other | 2 | 2004 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.