COLDWATER CANYON 1
PWS ID: AZ0413020 · TUCSON, Arizona 85745
Population Served
541
Total Violations
216
Health-Based Violations
22
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 239
- County
- Yavapai
- School/Daycare
- No
- MCL Violations
- 22
- Monitoring Violations
- 163
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 28 | 2015 |
| Chlorine | MR | 25 | 2022 |
| Lead and Copper Rule | MR | 23 | 2019 |
| Consumer Confidence Rule | Other | 22 | 2022 |
| Arsenic | MCL | 16 | 2023 |
| Arsenic | MR | 11 | 2025 |
| Nitrate | MR | 8 | 2006 |
| Coliform (TCR) | MCL | 6 | 2010 |
| Gross Alpha, Excl. Radon and U | MR | 4 | 1986 |
| E. COLI | MR | 2 | 2015 |
| Revised Total Coliform Rule | MON | 2 | 2017 |
| TTHM | MR | 2 | 2016 |
| Total Haloacetic Acids (HAA5) | MR | 2 | 2016 |
| Public Notice | Other | 2 | 2022 |
| 1,2,4-Trichlorobenzene | MR | 1 | 1998 |
| Xylenes, Total | MR | 1 | 1998 |
| DICHLOROMETHANE | MR | 1 | 1998 |
| o-Dichlorobenzene | MR | 1 | 1998 |
| trans-1,2-Dichloroethylene | MR | 1 | 1998 |
| 1,2-Dichloroethane | MR | 1 | 1998 |
| 1,2-Dichloropropane | MR | 1 | 1998 |
| 1,1,2-Trichloroethane | MR | 1 | 1998 |
| Tetrachloroethylene | MR | 1 | 1998 |
| CHLOROBENZENE | MR | 1 | 1998 |
| Benzene | MR | 1 | 1998 |
| Styrene | MR | 1 | 1998 |
| Endrin | MR | 1 | 1998 |
| Toxaphene | MR | 1 | 1998 |
| Endothall | MR | 1 | 1998 |
| OXAMYL | MR | 1 | 1998 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.