KELVIN SIMMONS COOP
PWS ID: AZ0411035 · SAN TAN VALLEY, Arizona 85140
Population Served
28
Total Violations
780
Health-Based Violations
128
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Public/Private
- Connections
- 12
- County
- Pinal
- School/Daycare
- No
- MCL Violations
- 113
- Monitoring Violations
- 468
- Treatment Tech Violations
- 15
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Combined Uranium | MCL | 113 | 2024 |
| Combined Uranium | MR | 87 | 2024 |
| Revised Total Coliform Rule | MON | 78 | 2024 |
| Public Notice | Other | 69 | 2025 |
| Coliform (TCR) | MR | 64 | 2016 |
| Nitrate | MR | 59 | 2019 |
| Lead and Copper Rule | MR | 56 | 2024 |
| Revised Total Coliform Rule | RPT | 54 | 2024 |
| Consumer Confidence Rule | Other | 38 | 2022 |
| Chlorine | MR | 21 | 2014 |
| E. COLI | MR | 12 | 2022 |
| Lead and Copper Rule | TT | 9 | 2021 |
| Revised Total Coliform Rule | TT | 6 | 2022 |
| Fluoride | MR | 2 | 1998 |
| Mercury | MR | 2 | 1998 |
| Selenium | MR | 2 | 1998 |
| 1,2,4-Trichlorobenzene | MR | 2 | 2002 |
| cis-1,2-Dichloroethylene | MR | 2 | 2002 |
| Xylenes, Total | MR | 2 | 2002 |
| p-Dichlorobenzene | MR | 2 | 2002 |
| trans-1,2-Dichloroethylene | MR | 2 | 2002 |
| 1,2-Dichloroethane | MR | 2 | 2002 |
| 1,1,1-Trichloroethane | MR | 2 | 2002 |
| Carbon tetrachloride | MR | 2 | 2002 |
| 1,1,2-Trichloroethane | MR | 2 | 2002 |
| Tetrachloroethylene | MR | 2 | 2002 |
| CHLOROBENZENE | MR | 2 | 2002 |
| Ethylbenzene | MR | 2 | 2002 |
| Styrene | MR | 2 | 2002 |
| DICHLOROMETHANE | MR | 2 | 2002 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.