TWIN HILLS SCHOOL DIST-APPLE BLOSSOM SCH
PWS ID: CA4900710 · SEBASTOPOL, California 95472
Population Served
400
Total Violations
5
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Local
- Connections
- 1
- County
- Sonoma
- School/Daycare
- Yes
- MCL Violations
- 0
- Monitoring Violations
- 4
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MR | 2 | 2006 |
| Total Haloacetic Acids (HAA5) | MR | 1 | 2005 |
| TTHM | MR | 1 | 2005 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.