ONAGA, CITY OF
PWS ID: KS2014905 · ONAGA, Kansas 66521
Population Served
671
Total Violations
33
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 380
- County
- Pottawatomie
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 22
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 7 | 2010 |
| Lead and Copper Rule | MR | 4 | 2011 |
| Public Notice | Other | 4 | 2011 |
| Consumer Confidence Rule | Other | 2 | 2000 |
| Beryllium, Total | MR | 1 | 2002 |
| Thallium, Total | MR | 1 | 2002 |
| Selenium | MR | 1 | 2002 |
| Fluoride | MR | 1 | 2002 |
| Barium | MR | 1 | 2002 |
| Cadmium | MR | 1 | 2002 |
| Mercury | MR | 1 | 2002 |
| Antimony, Total | MR | 1 | 2002 |
| Chromium | MR | 1 | 2002 |
| Arsenic | MR | 1 | 2002 |
| Nickel | MR | 1 | 2002 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.