HOLBROOK SDA INDIAN SCHOOL
PWS ID: AZ0409046 · HOLBROOK, Arizona 86025
Population Served
100
Total Violations
200
Health-Based Violations
2
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 25
- County
- Navajo
- School/Daycare
- Yes
- MCL Violations
- 2
- Monitoring Violations
- 182
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 36 | 2015 |
| Chlorine | MR | 19 | 2022 |
| Lead and Copper Rule | MR | 16 | 2023 |
| Revised Total Coliform Rule | MON | 11 | 2023 |
| TTHM | MR | 7 | 2023 |
| Total Haloacetic Acids (HAA5) | MR | 7 | 2023 |
| Nitrate | MR | 6 | 2005 |
| Revised Total Coliform Rule | RPT | 3 | 2018 |
| cis-1,2-Dichloroethylene | MR | 2 | 1998 |
| p-Dichlorobenzene | MR | 2 | 1998 |
| trans-1,2-Dichloroethylene | MR | 2 | 1998 |
| 1,2-Dichloroethane | MR | 2 | 1998 |
| 1,2-Dichloropropane | MR | 2 | 1998 |
| 1,1,2-Trichloroethane | MR | 2 | 1998 |
| Tetrachloroethylene | MR | 2 | 1998 |
| Benzene | MR | 2 | 1998 |
| Toluene | MR | 2 | 1998 |
| Ethylbenzene | MR | 2 | 1998 |
| Coliform (TCR) | MCL | 2 | 1997 |
| Barium | MR | 2 | 1989 |
| Mercury | MR | 2 | 1989 |
| Styrene | MR | 2 | 1998 |
| Cadmium | MR | 2 | 1989 |
| CHLOROBENZENE | MR | 2 | 1998 |
| Fluoride | MR | 2 | 1989 |
| DICHLOROMETHANE | MR | 2 | 1998 |
| Chromium | MR | 2 | 1989 |
| Arsenic | MR | 2 | 1989 |
| Selenium | MR | 2 | 1989 |
| o-Dichlorobenzene | MR | 2 | 1998 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.