SUN VALLEY UTILITIES
PWS ID: AZ0409001 · HOLBROOK, Arizona 86025
Population Served
287
Total Violations
273
Health-Based Violations
19
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 83
- County
- Navajo
- School/Daycare
- No
- MCL Violations
- 17
- Monitoring Violations
- 184
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Consumer Confidence Rule | Other | 25 | 2025 |
| Chlorine | MR | 24 | 2021 |
| Revised Total Coliform Rule | RPT | 23 | 2024 |
| TTHM | MR | 21 | 2022 |
| Lead and Copper Rule | MR | 17 | 2023 |
| Coliform (TCR) | MR | 16 | 2015 |
| Total Haloacetic Acids (HAA5) | MR | 16 | 2021 |
| Arsenic | MR | 11 | 1980 |
| TTHM | MCL | 9 | 2025 |
| Public Notice | Other | 8 | 2024 |
| Coliform (TCR) | MCL | 7 | 2005 |
| Nitrate | MR | 5 | 2003 |
| Gross Alpha, Excl. Radon and U | MR | 4 | 1987 |
| Revised Total Coliform Rule | MON | 2 | 2016 |
| Revised Total Coliform Rule | TT | 2 | 2019 |
| cis-1,2-Dichloroethylene | MR | 2 | 1998 |
| o-Dichlorobenzene | MR | 2 | 1998 |
| 1,1-Dichloroethylene | MR | 2 | 1998 |
| 1,1,1-Trichloroethane | MR | 2 | 1998 |
| 1,2-Dichloropropane | MR | 2 | 1998 |
| Trichloroethylene | MR | 2 | 1998 |
| Tetrachloroethylene | MR | 2 | 1998 |
| Toluene | MR | 2 | 1998 |
| Styrene | MR | 2 | 1998 |
| 1,1,2-Trichloroethane | MR | 2 | 1998 |
| 1,2-Dichloroethane | MR | 2 | 1998 |
| CHLOROBENZENE | MR | 2 | 1998 |
| Benzene | MR | 2 | 1998 |
| Carbon tetrachloride | MR | 2 | 1998 |
| DICHLOROMETHANE | MR | 2 | 1998 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.