SENECA-CAYUGA NATION
PWS ID: OK1221644 · GROVE, Oklahoma 74345-3220
Population Served
400
Total Violations
1,329
Health-Based Violations
5
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Native American
- Connections
- 45
- County
- Delaware
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 1,242
- Treatment Tech Violations
- 5
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Revised Total Coliform Rule | MON | 60 | 2024 |
| Chlorine | MR | 54 | 2024 |
| Consumer Confidence Rule | Other | 39 | 2025 |
| o-Dichlorobenzene | MR | 34 | 2023 |
| p-Dichlorobenzene | MR | 34 | 2023 |
| Vinyl chloride | MR | 34 | 2023 |
| 1,1-Dichloroethylene | MR | 34 | 2023 |
| trans-1,2-Dichloroethylene | MR | 34 | 2023 |
| Carbon tetrachloride | MR | 34 | 2023 |
| 1,2-Dichloropropane | MR | 34 | 2023 |
| Tetrachloroethylene | MR | 34 | 2023 |
| CHLOROBENZENE | MR | 34 | 2023 |
| Benzene | MR | 34 | 2023 |
| Toluene | MR | 34 | 2023 |
| 1,2,4-Trichlorobenzene | MR | 34 | 2023 |
| Xylenes, Total | MR | 34 | 2023 |
| DICHLOROMETHANE | MR | 34 | 2023 |
| Trichloroethylene | MR | 34 | 2023 |
| 1,1,2-Trichloroethane | MR | 34 | 2023 |
| cis-1,2-Dichloroethylene | MR | 34 | 2023 |
| Styrene | MR | 34 | 2023 |
| Ethylbenzene | MR | 34 | 2023 |
| 1,1,1-Trichloroethane | MR | 34 | 2023 |
| Public Notice | Other | 28 | 2024 |
| Coliform (TCR) | MR | 27 | 2015 |
| 1,2-Dichloroethane | MR | 26 | 2023 |
| Lead and Copper Rule | MR | 25 | 2025 |
| Nitrate-Nitrite | MR | 17 | 2023 |
| TTHM | MR | 10 | 2020 |
| Total Haloacetic Acids (HAA5) | MR | 10 | 2020 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.