DERBY ING
PWS ID: TX0820016 · HOUSTON, Texas 77094-1327
Population Served
174
Total Violations
2,768
Health-Based Violations
2
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 58
- County
- Frio
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 2,406
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 333 | 2016 |
| Public Notice | Other | 304 | 2025 |
| Chlorine | MR | 201 | 2025 |
| Lead and Copper Rule | MR | 86 | 2025 |
| Nitrate | MR | 65 | 2024 |
| Revised Total Coliform Rule | MON | 55 | 2025 |
| 1,2,4-Trichlorobenzene | MR | 49 | 2024 |
| cis-1,2-Dichloroethylene | MR | 49 | 2024 |
| Xylenes, Total | MR | 49 | 2024 |
| DICHLOROMETHANE | MR | 49 | 2024 |
| o-Dichlorobenzene | MR | 49 | 2024 |
| trans-1,2-Dichloroethylene | MR | 49 | 2024 |
| 1,2-Dichloroethane | MR | 49 | 2024 |
| 1,1,1-Trichloroethane | MR | 49 | 2024 |
| Carbon tetrachloride | MR | 49 | 2024 |
| 1,1,2-Trichloroethane | MR | 49 | 2024 |
| Toluene | MR | 49 | 2024 |
| Ethylbenzene | MR | 49 | 2024 |
| Styrene | MR | 49 | 2024 |
| Vinyl chloride | MR | 49 | 2024 |
| 1,1-Dichloroethylene | MR | 49 | 2024 |
| 1,2-Dichloropropane | MR | 49 | 2024 |
| Tetrachloroethylene | MR | 49 | 2024 |
| CHLOROBENZENE | MR | 49 | 2024 |
| Benzene | MR | 49 | 2024 |
| Trichloroethylene | MR | 49 | 2024 |
| p-Dichlorobenzene | MR | 49 | 2024 |
| Consumer Confidence Rule | Other | 43 | 2024 |
| Combined Radium (-226 and -228) | MR | 21 | 2020 |
| Combined Uranium | MR | 21 | 2020 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.