WATCO WATER
PWS ID: AZ0409049 · TUCSON, Arizona 85754
Population Served
1,153
Total Violations
79
Health-Based Violations
6
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 332
- County
- Navajo
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 51
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 33 | 2015 |
| Consumer Confidence Rule | Other | 17 | 2025 |
| Lead and Copper Rule | MR | 8 | 2025 |
| Coliform (TCR) | MCL | 4 | 2011 |
| Revised Total Coliform Rule | MON | 4 | 2025 |
| E. COLI | MR | 3 | 2015 |
| Nitrate | MR | 2 | 2005 |
| Revised Total Coliform Rule | TT | 2 | 2022 |
| Revised Total Coliform Rule | RPT | 2 | 2022 |
| Public Notice | Other | 1 | 2024 |
| Asbestos | MR | 1 | 2006 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.