PYRAMID CREEK TRAILHEAD
PWS ID: CA0900502 · HOLLISTER, California 95023
Population Served
2,000
Total Violations
19
Health-Based Violations
4
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Federal
- Connections
- 3
- County
- El Dorado
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 13
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 5 | 2005 |
| Coliform (TCR) | MCL | 4 | 2005 |
| Nitrate | MR | 4 | 2013 |
| Nitrite | MR | 2 | 2011 |
| Nitrate-Nitrite | MR | 2 | 2021 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.