ASPC APACHE
PWS ID: AZ0401056 · ST. JOHNS, Arizona 85936
Population Served
540
Total Violations
501
Health-Based Violations
15
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- State
- Connections
- 14
- County
- Apache
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 461
- Treatment Tech Violations
- 11
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MR | 20 | 2019 |
| Coliform (TCR) | MR | 13 | 2012 |
| Lead and Copper Rule | MR | 11 | 2025 |
| 1,2,4-Trichlorobenzene | MR | 9 | 2018 |
| 1,2-Dichloropropane | MR | 8 | 2018 |
| Trichloroethylene | MR | 8 | 2018 |
| Consumer Confidence Rule | Other | 8 | 2011 |
| 1,1,2-Trichloroethane | MR | 8 | 2018 |
| DICHLOROMETHANE | MR | 8 | 2018 |
| p-Dichlorobenzene | MR | 8 | 2018 |
| 1,1-Dichloroethylene | MR | 8 | 2018 |
| trans-1,2-Dichloroethylene | MR | 8 | 2018 |
| 1,1,1-Trichloroethane | MR | 8 | 2018 |
| Carbon tetrachloride | MR | 8 | 2018 |
| Toluene | MR | 8 | 2018 |
| Ethylbenzene | MR | 8 | 2018 |
| Styrene | MR | 8 | 2018 |
| Tetrachloroethylene | MR | 8 | 2018 |
| cis-1,2-Dichloroethylene | MR | 8 | 2018 |
| o-Dichlorobenzene | MR | 8 | 2018 |
| 1,2-Dichloroethane | MR | 8 | 2018 |
| CHLOROBENZENE | MR | 8 | 2018 |
| Benzene | MR | 8 | 2018 |
| Total Haloacetic Acids (HAA5) | MR | 8 | 2023 |
| Xylenes, Total | MR | 8 | 2018 |
| TTHM | MR | 8 | 2023 |
| Arsenic | MR | 7 | 2015 |
| Fluoride | MR | 7 | 2015 |
| 2,4-D | MR | 6 | 2018 |
| Cadmium | MR | 6 | 2015 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.