USACE TABLE ROCK BIG M MARINA
PWS ID: MO5111949 · SHELL KNOB, Missouri 65747-0000
Population Served
100
Total Violations
54
Health-Based Violations
8
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Federal
- Connections
- 7
- County
- Barry
- School/Daycare
- No
- MCL Violations
- 8
- Monitoring Violations
- 39
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 28 | 2009 |
| Nitrate-Nitrite | MR | 8 | 2014 |
| Coliform (TCR) | MCL | 8 | 2012 |
| Public Notice | Other | 7 | 2016 |
| Revised Total Coliform Rule | MON | 3 | 2024 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.