OTOE-MISSOURIA TRIBE
PWS ID: OK1021222 · RED ROCK, Oklahoma 74651
Population Served
250
Total Violations
1,707
Health-Based Violations
1,001
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Native American
- Connections
- 92
- County
- Noble
- School/Daycare
- No
- MCL Violations
- 574
- Monitoring Violations
- 696
- Treatment Tech Violations
- 427
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MCL | 473 | 2023 |
| CARBON, TOTAL | TT | 388 | 2019 |
| Interim Enhanced Surface Water Treatment Rule | MR | 297 | 2016 |
| CARBON, TOTAL | MR | 191 | 2011 |
| Total Haloacetic Acids (HAA5) | MCL | 101 | 2019 |
| Coliform (TCR) | MR | 64 | 2011 |
| TTHM | MR | 56 | 2018 |
| Total Haloacetic Acids (HAA5) | MR | 50 | 2018 |
| Interim Enhanced Surface Water Treatment Rule | TT | 33 | 2018 |
| Lead and Copper Rule | MR | 13 | 2011 |
| Nitrate-Nitrite | MR | 10 | 2016 |
| Consumer Confidence Rule | Other | 7 | 2016 |
| Chlorine | MR | 5 | 2004 |
| Surface Water Treatment Rule | TT | 4 | 2018 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule | MR | 3 | 2010 |
| E. COLI | MR | 2 | 2008 |
| Long Term 2 Enhanced Surface Water Treatment Rule | TT | 2 | 2010 |
| Nitrate | MR | 2 | 2002 |
| Long Term 2 Enhanced Surface Water Treatment Rule | MR | 2 | 2008 |
| Surface Water Treatment Rule | MR | 1 | 2004 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.