RALSTON
PWS ID: OK2005901 · RALSTON, Oklahoma 74650
Population Served
335
Total Violations
223
Health-Based Violations
21
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 141
- County
- Pawnee
- School/Daycare
- No
- MCL Violations
- 21
- Monitoring Violations
- 149
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 47 | 2014 |
| Lead and Copper Rule | MR | 27 | 2019 |
| Chlorine | MR | 23 | 2020 |
| Coliform (TCR) | MCL | 21 | 2015 |
| Public Notice | Other | 13 | 2021 |
| Nitrate-Nitrite | MR | 11 | 2023 |
| TTHM | MR | 10 | 2010 |
| Total Haloacetic Acids (HAA5) | MR | 10 | 2010 |
| E. COLI | MR | 10 | 2019 |
| Revised Total Coliform Rule | MON | 8 | 2019 |
| Consumer Confidence Rule | Other | 6 | 2014 |
| Arsenic | MR | 3 | 2011 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.