WILLOW PARK MARINA
PWS ID: CA0707507 · OAKLEY, California 94561
Population Served
380
Total Violations
16
Health-Based Violations
16
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 166
- County
- Contra Costa
- School/Daycare
- No
- MCL Violations
- 16
- Monitoring Violations
- 0
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MCL | 16 | 2024 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.