MONTE VISTA WATER COMPANY
PWS ID: AZ0402043 · TUCSON, Arizona 85756
Population Served
150
Total Violations
353
Health-Based Violations
76
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 50
- County
- Cochise
- School/Daycare
- No
- MCL Violations
- 73
- Monitoring Violations
- 206
- Treatment Tech Violations
- 3
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MCL | 71 | 2024 |
| Consumer Confidence Rule | Other | 46 | 2024 |
| Chlorine | MR | 44 | 2020 |
| Arsenic | MR | 44 | 2019 |
| Coliform (TCR) | MR | 24 | 2014 |
| Total Haloacetic Acids (HAA5) | MR | 11 | 2017 |
| TTHM | MR | 11 | 2017 |
| Nitrate | MR | 9 | 2006 |
| Lead and Copper Rule | MR | 6 | 2015 |
| Public Notice | Other | 6 | 2024 |
| LEAD AND COPPER RULE REVISIONS | TT | 3 | 2024 |
| LEAD AND COPPER RULE REVISIONS | RPT | 3 | 2024 |
| DICHLOROMETHANE | MR | 2 | 2001 |
| p-Dichlorobenzene | MR | 2 | 2001 |
| Coliform (TCR) | MCL | 2 | 2000 |
| 1,2-Dichloropropane | MR | 2 | 2001 |
| 1,1,2-Trichloroethane | MR | 2 | 2001 |
| Toluene | MR | 2 | 2001 |
| Ethylbenzene | MR | 2 | 2001 |
| Styrene | MR | 2 | 2001 |
| Revised Total Coliform Rule | MON | 2 | 2019 |
| Mercury | MR | 2 | 1990 |
| Barium | MR | 2 | 1990 |
| Cadmium | MR | 2 | 1990 |
| Selenium | MR | 2 | 1990 |
| trans-1,2-Dichloroethylene | MR | 2 | 2001 |
| Chromium | MR | 2 | 1990 |
| o-Dichlorobenzene | MR | 2 | 2001 |
| CHLOROBENZENE | MR | 2 | 2001 |
| Tetrachloroethylene | MR | 2 | 2001 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.