TOWN & COUNTRY - PRESTON
PWS ID: AZ0412311 · NOGALES, Arizona 85628
Population Served
430
Total Violations
316
Health-Based Violations
9
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 90
- County
- Santa Cruz
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 217
- Treatment Tech Violations
- 5
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Consumer Confidence Rule | Other | 55 | 2023 |
| Chlorine | MR | 47 | 2025 |
| Coliform (TCR) | MR | 27 | 2015 |
| Lead and Copper Rule | MR | 25 | 2025 |
| Nitrate | MR | 10 | 2021 |
| Public Notice | Other | 10 | 2025 |
| Total Haloacetic Acids (HAA5) | MR | 9 | 2017 |
| TTHM | MR | 9 | 2017 |
| Coliform (TCR) | MCL | 3 | 2000 |
| Tetrachloroethylene | MR | 3 | 2011 |
| E. COLI | MR | 3 | 2022 |
| Groundwater Rule | TT | 3 | 2025 |
| cis-1,2-Dichloroethylene | MR | 2 | 2011 |
| DICHLOROMETHANE | MR | 2 | 2011 |
| o-Dichlorobenzene | MR | 2 | 2011 |
| 1,1-Dichloroethylene | MR | 2 | 2011 |
| trans-1,2-Dichloroethylene | MR | 2 | 2011 |
| 1,2-Dichloroethane | MR | 2 | 2011 |
| 1,1,1-Trichloroethane | MR | 2 | 2011 |
| CHLOROBENZENE | MR | 2 | 2011 |
| Toluene | MR | 2 | 2011 |
| Ethylbenzene | MR | 2 | 2011 |
| Xylenes, Total | MR | 2 | 2011 |
| Carbon tetrachloride | MR | 2 | 2011 |
| 1,2-Dichloropropane | MR | 2 | 2011 |
| Benzene | MR | 2 | 2011 |
| LEAD AND COPPER RULE REVISIONS | TT | 2 | 2024 |
| Styrene | MR | 2 | 2011 |
| p-Dichlorobenzene | MR | 2 | 2011 |
| 1,2,4-Trichlorobenzene | MR | 2 | 2011 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.