WYOLA WATER SYSTEM
PWS ID: 083090014 · CROW AGENCY, 08 59022
Population Served
261
Total Violations
292
Health-Based Violations
17
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Native American
- Connections
- 58
- School/Daycare
- Yes
- MCL Violations
- 14
- Monitoring Violations
- 262
- Treatment Tech Violations
- 3
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 78 | 2006 |
| Revised Total Coliform Rule | MON | 30 | 2020 |
| Coliform (TCR) | MCL | 11 | 2007 |
| Lead and Copper Rule | MR | 10 | 2025 |
| Nitrate-Nitrite | MR | 8 | 2023 |
| Consumer Confidence Rule | Other | 8 | 2023 |
| Chlorine | MR | 6 | 2023 |
| Nitrite | MR | 4 | 2020 |
| Groundwater Rule | TT | 3 | 2020 |
| 1,2,4-Trichlorobenzene | MR | 3 | 2024 |
| cis-1,2-Dichloroethylene | MR | 3 | 2024 |
| DICHLOROMETHANE | MR | 3 | 2024 |
| p-Dichlorobenzene | MR | 3 | 2024 |
| 1,2-Dichloroethane | MR | 3 | 2024 |
| Carbon tetrachloride | MR | 3 | 2024 |
| Trichloroethylene | MR | 3 | 2024 |
| 1,1,2-Trichloroethane | MR | 3 | 2024 |
| Tetrachloroethylene | MR | 3 | 2024 |
| Ethylbenzene | MR | 3 | 2024 |
| Xylenes, Total | MR | 3 | 2024 |
| o-Dichlorobenzene | MR | 3 | 2024 |
| Vinyl chloride | MR | 3 | 2024 |
| 1,1-Dichloroethylene | MR | 3 | 2024 |
| trans-1,2-Dichloroethylene | MR | 3 | 2024 |
| 1,1,1-Trichloroethane | MR | 3 | 2024 |
| CHLOROBENZENE | MR | 3 | 2024 |
| Styrene | MR | 3 | 2024 |
| Benzene | MR | 3 | 2024 |
| Toluene | MR | 3 | 2024 |
| Revised Total Coliform Rule | MCL | 3 | 2019 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.