NAVAJO COUNTY GOVERNMENT COMPLEX
PWS ID: AZ0409052 · HOLBROOK, Arizona 86025
Population Served
540
Total Violations
203
Health-Based Violations
13
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Local
- Connections
- 1
- County
- Navajo
- School/Daycare
- No
- MCL Violations
- 1
- Monitoring Violations
- 167
- Treatment Tech Violations
- 12
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| DICHLOROMETHANE | MR | 17 | 2007 |
| Styrene | MR | 17 | 2007 |
| Coliform (TCR) | MR | 12 | 2009 |
| Groundwater Rule | TT | 8 | 2020 |
| Chlorine | MR | 7 | 2024 |
| Total Haloacetic Acids (HAA5) | MR | 5 | 2022 |
| TTHM | MR | 5 | 2022 |
| Nitrate | MR | 5 | 2001 |
| Gross Alpha, Excl. Radon and U | MR | 4 | 2004 |
| LEAD AND COPPER RULE REVISIONS | TT | 4 | 2024 |
| LEAD AND COPPER RULE REVISIONS | RPT | 4 | 2024 |
| Benzene | MR | 3 | 2007 |
| Xylenes, Total | MR | 3 | 2007 |
| Chromium | MR | 2 | 1998 |
| Fluoride | MR | 2 | 1998 |
| cis-1,2-Dichloroethylene | MR | 2 | 2007 |
| 1,2-Dichloroethane | MR | 2 | 2007 |
| Carbon tetrachloride | MR | 2 | 2007 |
| Tetrachloroethylene | MR | 2 | 2007 |
| CHLOROBENZENE | MR | 2 | 2007 |
| Toluene | MR | 2 | 2007 |
| Ethylbenzene | MR | 2 | 2007 |
| Public Notice | Other | 2 | 2024 |
| Selenium | MR | 2 | 1998 |
| 1,2,4-Trichlorobenzene | MR | 2 | 2007 |
| p-Dichlorobenzene | MR | 2 | 2007 |
| trans-1,2-Dichloroethylene | MR | 2 | 2007 |
| Arsenic | MR | 2 | 1998 |
| 1,1,1-Trichloroethane | MR | 2 | 2007 |
| Trichloroethylene | MR | 2 | 2007 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.