LICK OBSERVATORY-UCSC
PWS ID: CA4300909 · MOUNT HAMILTON, California 95140
Population Served
284
Total Violations
6
Health-Based Violations
3
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- State
- Connections
- 29
- County
- Santa Clara
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 3
- Treatment Tech Violations
- 3
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | TT | 3 | 1993 |
| Coliform (TCR) | MR | 2 | 1995 |
| Revised Total Coliform Rule | MON | 1 | 2018 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.