CORONADO ELEMENTARY
PWS ID: AZ0402102 · HEREFORD, Arizona 85615
Population Served
446
Total Violations
99
Health-Based Violations
1
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Local
- Connections
- 2
- County
- Cochise
- School/Daycare
- Yes
- MCL Violations
- 1
- Monitoring Violations
- 92
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 12 | 2015 |
| 1,2,4-Trichlorobenzene | MR | 2 | 2002 |
| cis-1,2-Dichloroethylene | MR | 2 | 2002 |
| o-Dichlorobenzene | MR | 2 | 2002 |
| 1,1-Dichloroethylene | MR | 2 | 2002 |
| Carbon tetrachloride | MR | 2 | 2002 |
| 1,1,2-Trichloroethane | MR | 2 | 2002 |
| Toluene | MR | 2 | 2002 |
| Xylenes, Total | MR | 2 | 2002 |
| DICHLOROMETHANE | MR | 2 | 2002 |
| 1,2-Dichloroethane | MR | 2 | 2002 |
| 1,1,1-Trichloroethane | MR | 2 | 2002 |
| Benzene | MR | 2 | 2002 |
| Ethylbenzene | MR | 2 | 2002 |
| Styrene | MR | 2 | 2002 |
| Total Haloacetic Acids (HAA5) | MR | 2 | 2019 |
| TTHM | MR | 2 | 2019 |
| trans-1,2-Dichloroethylene | MR | 2 | 2002 |
| Chromium | MR | 1 | 1998 |
| CYANIDE | MR | 1 | 1998 |
| Mercury | MR | 1 | 1998 |
| Selenium | MR | 1 | 1998 |
| Antimony, Total | MR | 1 | 1998 |
| Thallium, Total | MR | 1 | 1998 |
| p-Dichlorobenzene | MR | 1 | 1998 |
| 1,2-Dichloropropane | MR | 1 | 1998 |
| Trichloroethylene | MR | 1 | 1998 |
| BHC-GAMMA | MR | 1 | 1998 |
| Methoxychlor | MR | 1 | 1998 |
| Toxaphene | MR | 1 | 1998 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.