OSAGE CO RWD #21
PWS ID: OK2003616 · SHIDLER, Oklahoma 74652
Population Served
1,500
Total Violations
407
Health-Based Violations
7
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 566
- County
- Osage
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 360
- Treatment Tech Violations
- 3
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Interim Enhanced Surface Water Treatment Rule | MR | 166 | 2025 |
| Chlorine | MR | 66 | 2025 |
| Revised Total Coliform Rule | MON | 34 | 2025 |
| Arsenic | MR | 27 | 2024 |
| Total Haloacetic Acids (HAA5) | MR | 19 | 2024 |
| TTHM | MR | 17 | 2024 |
| Coliform (TCR) | MR | 13 | 2008 |
| Nitrate-Nitrite | MR | 7 | 2023 |
| Lead and Copper Rule | MR | 6 | 2009 |
| Coliform (TCR) | MCL | 4 | 2000 |
| Glyphosate | MR | 4 | 2019 |
| Interim Enhanced Surface Water Treatment Rule | TT | 2 | 2021 |
| Public Notice | Other | 2 | 2021 |
| E. COLI | MR | 1 | 2010 |
| LEAD AND COPPER RULE REVISIONS | TT | 1 | 2024 |
| LEAD AND COPPER RULE REVISIONS | RPT | 1 | 2024 |
| Consumer Confidence Rule | Other | 1 | 2025 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.