PORTAGE DES SIOUX PWS
PWS ID: MO6010657 · PORTAGE DES SIOUX, Missouri 63373-0000
Population Served
345
Total Violations
115
Health-Based Violations
10
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 165
- County
- St. Charles
- School/Daycare
- No
- MCL Violations
- 6
- Monitoring Violations
- 97
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 53 | 2014 |
| Revised Total Coliform Rule | MON | 8 | 2019 |
| Coliform (TCR) | MCL | 6 | 1996 |
| Groundwater Rule | TT | 4 | 2015 |
| Lead and Copper Rule | MR | 3 | 2003 |
| Mercury | MR | 2 | 1996 |
| Consumer Confidence Rule | Other | 2 | 2019 |
| Public Notice | Other | 1 | 2016 |
| Trichloroethylene | MR | 1 | 1996 |
| Carbon tetrachloride | MR | 1 | 1996 |
| o-Dichlorobenzene | MR | 1 | 1996 |
| Cadmium | MR | 1 | 1996 |
| CYANIDE | MR | 1 | 1996 |
| Barium | MR | 1 | 1996 |
| cis-1,2-Dichloroethylene | MR | 1 | 1996 |
| 1,2-Dichloropropane | MR | 1 | 1996 |
| 1,1-Dichloroethylene | MR | 1 | 1996 |
| Fluoride | MR | 1 | 1996 |
| 1,1,1-Trichloroethane | MR | 1 | 1996 |
| Tetrachloroethylene | MR | 1 | 1996 |
| p-Dichlorobenzene | MR | 1 | 1996 |
| Selenium | MR | 1 | 1996 |
| DICHLOROMETHANE | MR | 1 | 1996 |
| Antimony, Total | MR | 1 | 1996 |
| Ethylbenzene | MR | 1 | 1996 |
| Xylenes, Total | MR | 1 | 1996 |
| 1,2-Dichloroethane | MR | 1 | 1996 |
| 1,1,2-Trichloroethane | MR | 1 | 1996 |
| Beryllium, Total | MR | 1 | 1996 |
| Toluene | MR | 1 | 1996 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.