HOLLISTER RANCH ESTATES
PWS ID: CA3500904 · HOLLISTER, California 95023
Population Served
150
Total Violations
42
Health-Based Violations
21
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 37
- County
- San Benito
- School/Daycare
- No
- MCL Violations
- 21
- Monitoring Violations
- 19
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Combined Uranium | MCL | 16 | 2017 |
| Nitrate | MR | 8 | 2023 |
| Coliform (TCR) | MCL | 5 | 2003 |
| Revised Total Coliform Rule | MON | 4 | 2019 |
| Coliform (TCR) | MR | 3 | 2000 |
| Benzene | MR | 2 | 2000 |
| Public Notice | Other | 2 | 2010 |
| E. COLI | MR | 2 | 2017 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.