HORNBROOK C.S.D.
PWS ID: CA4700513 · HORNBROOK, California 96044
Population Served
280
Total Violations
47
Health-Based Violations
14
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 147
- County
- Siskiyou
- School/Daycare
- No
- MCL Violations
- 6
- Monitoring Violations
- 5
- Treatment Tech Violations
- 8
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 6 | 1997 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | 5 | 2024 |
| Surface Water Treatment Rule | TT | 2 | 1993 |
| Gross Alpha, Excl. Radon and U | MR | 2 | 1981 |
| Coliform (TCR) | MR | 2 | 2015 |
| Lead and Copper Rule | MR | 1 | 1993 |
| LEAD AND COPPER RULE REVISIONS | TT | 1 | 2024 |
| LEAD AND COPPER RULE REVISIONS | RPT | 1 | 2024 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.