SONOITA VALLEY (SOUTH) WATER COMPANY
PWS ID: AZ0412005 · TUCSON, Arizona 85754
Population Served
169
Total Violations
165
Health-Based Violations
7
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 59
- County
- Santa Cruz
- School/Daycare
- No
- MCL Violations
- 5
- Monitoring Violations
- 127
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Gross Alpha, Excl. Radon and U | MR | 29 | 2024 |
| Combined Uranium | MR | 24 | 2024 |
| Public Notice | Other | 9 | 2024 |
| Coliform (TCR) | MR | 8 | 2010 |
| Chlorine | MR | 6 | 2019 |
| Combined Uranium | MCL | 5 | 2012 |
| Consumer Confidence Rule | Other | 5 | 2019 |
| Lead and Copper Rule | MR | 4 | 2019 |
| Nitrate | MR | 3 | 2002 |
| DICHLOROMETHANE | MR | 2 | 2001 |
| o-Dichlorobenzene | MR | 2 | 2001 |
| trans-1,2-Dichloroethylene | MR | 2 | 2001 |
| 1,2-Dichloroethane | MR | 2 | 2001 |
| 1,1,1-Trichloroethane | MR | 2 | 2001 |
| Carbon tetrachloride | MR | 2 | 2001 |
| 1,2-Dichloropropane | MR | 2 | 2001 |
| CHLOROBENZENE | MR | 2 | 2001 |
| Benzene | MR | 2 | 2001 |
| Combined Radium (-226 and -228) | MR | 2 | 2013 |
| Radium-228 | MR | 2 | 2013 |
| Radium-226 | MR | 2 | 2013 |
| LEAD AND COPPER RULE REVISIONS | RPT | 2 | 2024 |
| LEAD AND COPPER RULE REVISIONS | TT | 2 | 2024 |
| cis-1,2-Dichloroethylene | MR | 2 | 2001 |
| 1,1-Dichloroethylene | MR | 2 | 2001 |
| 1,1,2-Trichloroethane | MR | 2 | 2001 |
| Tetrachloroethylene | MR | 2 | 2001 |
| p-Dichlorobenzene | MR | 2 | 2001 |
| Trichloroethylene | MR | 2 | 2001 |
| Toluene | MR | 2 | 2001 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.