BERRYESSA HIGHLANDS
PWS ID: CA2810013 · NAPA, California 94559
Population Served
715
Total Violations
59
Health-Based Violations
46
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 256
- County
- Napa
- School/Daycare
- No
- MCL Violations
- 44
- Monitoring Violations
- 11
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MCL | 42 | 2020 |
| Surface Water Treatment Rule | MR | 2 | 1998 |
| TTHM | MR | 2 | 2014 |
| Total Haloacetic Acids (HAA5) | MR | 2 | 2014 |
| Total Haloacetic Acids (HAA5) | MCL | 2 | 2016 |
| Revised Total Coliform Rule | MON | 2 | 2024 |
| Coliform (TCR) | MR | 2 | 2001 |
| Public Notice | Other | 2 | 2014 |
| Surface Water Treatment Rule | TT | 2 | 2014 |
| 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.