CHAPARRAL WATER COMPANY
PWS ID: AZ0407064 · TUCSON, Arizona 85754
Population Served
963
Total Violations
268
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Public/Private
- Connections
- 358
- County
- Maricopa
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 236
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Chlorine | MR | 17 | 2018 |
| Consumer Confidence Rule | Other | 8 | 2012 |
| Revised Total Coliform Rule | RPT | 7 | 2021 |
| Cadmium | MR | 6 | 1998 |
| Thallium, Total | MR | 5 | 2003 |
| Arsenic | MR | 5 | 1998 |
| Fluoride | MR | 5 | 1998 |
| Mercury | MR | 5 | 1998 |
| Selenium | MR | 5 | 1998 |
| Barium | MR | 5 | 1998 |
| Chromium | MR | 5 | 1998 |
| Nitrate | MR | 5 | 1999 |
| Beryllium, Total | MR | 5 | 2003 |
| 1,1,2-Trichloroethane | MR | 3 | 1998 |
| CHLOROBENZENE | MR | 3 | 1998 |
| Benzene | MR | 3 | 1998 |
| cis-1,2-Dichloroethylene | MR | 3 | 1998 |
| o-Dichlorobenzene | MR | 3 | 1998 |
| 1,1-Dichloroethylene | MR | 3 | 1998 |
| 1,2-Dichloroethane | MR | 3 | 1998 |
| Toluene | MR | 3 | 1998 |
| Styrene | MR | 3 | 1998 |
| Endrin | MR | 3 | 1998 |
| BHC-GAMMA | MR | 3 | 1998 |
| Di(2-ethylhexyl) adipate | MR | 3 | 1998 |
| Dinoseb | MR | 3 | 1998 |
| Hexachlorocyclopentadiene | MR | 3 | 1998 |
| Atrazine | MR | 3 | 1998 |
| LASSO | MR | 3 | 1998 |
| Heptachlor | MR | 3 | 1998 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.