WILLOWSIDE SCHOOL
PWS ID: CA4901156 · SANTA ROSA, California 95401
Population Served
460
Total Violations
6
Health-Based Violations
3
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Local
- Connections
- 5
- County
- Sonoma
- School/Daycare
- Yes
- MCL Violations
- 2
- Monitoring Violations
- 2
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 2 | 1996 |
| Coliform (TCR) | MR | 2 | 1994 |
| LEAD AND COPPER RULE REVISIONS | RPT | 1 | 2024 |
| LEAD AND COPPER RULE REVISIONS | TT | 1 | 2024 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.