Yomba Indian Reservation
PWS ID: 093200172 · Austin, 09 89310
Population Served
30
Total Violations
252
Health-Based Violations
9
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Native American
- Connections
- 17
- School/Daycare
- No
- MCL Violations
- 5
- Monitoring Violations
- 180
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Revised Total Coliform Rule | MON | 60 | 2025 |
| Public Notice | Other | 51 | 2025 |
| Consumer Confidence Rule | Other | 10 | 2024 |
| Nitrate | MR | 8 | 2024 |
| Coliform (TCR) | MCL | 5 | 2015 |
| Coliform (TCR) | MR | 4 | 2015 |
| Xylenes, Total | MR | 3 | 2020 |
| o-Dichlorobenzene | MR | 3 | 2020 |
| E. COLI | MR | 3 | 2022 |
| p-Dichlorobenzene | MR | 3 | 2020 |
| Groundwater Rule | TT | 3 | 2023 |
| cis-1,2-Dichloroethylene | MR | 2 | 2020 |
| DICHLOROMETHANE | MR | 2 | 2020 |
| Vinyl chloride | MR | 2 | 2020 |
| 1,1,1-Trichloroethane | MR | 2 | 2020 |
| 1,1-Dichloroethylene | MR | 2 | 2020 |
| Carbon tetrachloride | MR | 2 | 2020 |
| Trichloroethylene | MR | 2 | 2020 |
| Tetrachloroethylene | MR | 2 | 2020 |
| CHLOROBENZENE | MR | 2 | 2020 |
| Toluene | MR | 2 | 2020 |
| Ethylbenzene | MR | 2 | 2020 |
| Styrene | MR | 2 | 2020 |
| Gross Alpha, Excl. Radon and U | MR | 2 | 2017 |
| Combined Uranium | MR | 2 | 2017 |
| Combined Radium (-226 and -228) | MR | 2 | 2017 |
| CYANIDE | MR | 2 | 2020 |
| Fluoride | MR | 2 | 2020 |
| Arsenic | MR | 2 | 2020 |
| 1,2-Dichloroethane | MR | 2 | 2020 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.