CIBOLA WATER IMPROVEMENT DISTRICT
PWS ID: AZ0415123 · TUCSON, Arizona 85754
Population Served
197
Total Violations
404
Health-Based Violations
153
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 188
- County
- La Paz
- School/Daycare
- No
- MCL Violations
- 147
- Monitoring Violations
- 185
- Treatment Tech Violations
- 6
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MCL | 142 | 2024 |
| Surface Water Treatment Rule | MR | 48 | 2025 |
| Chlorine | MR | 45 | 2025 |
| Interim Enhanced Surface Water Treatment Rule | MR | 38 | 2025 |
| Revised Total Coliform Rule | RPT | 23 | 2025 |
| TTHM | MR | 20 | 2024 |
| Public Notice | Other | 16 | 2025 |
| Total Haloacetic Acids (HAA5) | MR | 12 | 2024 |
| Revised Total Coliform Rule | MON | 8 | 2024 |
| Lead and Copper Rule | MR | 7 | 2024 |
| Consumer Confidence Rule | Other | 5 | 2019 |
| Total Haloacetic Acids (HAA5) | MCL | 5 | 2012 |
| Coliform (TCR) | MR | 4 | 2012 |
| Interim Enhanced Surface Water Treatment Rule | TT | 4 | 2023 |
| Nitrate | MR | 3 | 2015 |
| LEAD AND COPPER RULE REVISIONS | TT | 2 | 2024 |
| LEAD AND COPPER RULE REVISIONS | RPT | 2 | 2024 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.