SEQUOYAH CO. RWD #4
PWS ID: OK3006809 · SALLISAW, Oklahoma 74955
Population Served
1,750
Total Violations
54
Health-Based Violations
16
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 823
- County
- Sequoyah
- School/Daycare
- No
- MCL Violations
- 16
- Monitoring Violations
- 38
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 23 | 2009 |
| TTHM | MCL | 16 | 2018 |
| TTHM | MR | 5 | 2018 |
| Revised Total Coliform Rule | MON | 4 | 2025 |
| Chlorine | MR | 4 | 2025 |
| Total Haloacetic Acids (HAA5) | MR | 2 | 2013 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.