WOODLAND PARK MUTUAL WATER CO
PWS ID: CA4000506 · ARROYO GRANDE, California 93420
Population Served
538
Total Violations
21
Health-Based Violations
10
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 163
- County
- San Luis Obispo
- School/Daycare
- No
- MCL Violations
- 10
- Monitoring Violations
- 9
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MCL | 10 | 2025 |
| Lead and Copper Rule | MR | 7 | 2023 |
| Gross Alpha, Excl. Radon and U | MR | 2 | 1981 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.