MAHASKA, CITY OF
PWS ID: KS2020102 · MAHASKA, Kansas 66955
Population Served
44
Total Violations
123
Health-Based Violations
101
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 42
- County
- Washington
- School/Daycare
- No
- MCL Violations
- 97
- Monitoring Violations
- 13
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Combined Radium (-226 and -228) | MCL | 74 | 2015 |
| Coliform (TCR) | MCL | 23 | 2001 |
| Coliform (TCR) | MR | 4 | 2013 |
| Revised Total Coliform Rule | TT | 4 | 2024 |
| Chlorine | MR | 3 | 2024 |
| Lead and Copper Rule | MR | 3 | 2020 |
| Revised Total Coliform Rule | MON | 3 | 2024 |
| LEAD AND COPPER RULE REVISIONS | RPT | 1 | 2025 |
| Consumer Confidence Rule | Other | 1 | 2005 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.