LAKE THUNDERHEAD
PWS ID: MO2036165 · UNIONVILLE, Missouri 63565-0000
Population Served
585
Total Violations
93
Health-Based Violations
40
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 652
- County
- Putnam
- School/Daycare
- No
- MCL Violations
- 40
- Monitoring Violations
- 43
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Revised Total Coliform Rule | MON | 30 | 2021 |
| TTHM | MCL | 20 | 2016 |
| Total Haloacetic Acids (HAA5) | MCL | 20 | 2016 |
| Consumer Confidence Rule | Other | 6 | 2024 |
| Coliform (TCR) | MR | 4 | 2013 |
| TTHM | MR | 4 | 2019 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2019 |
| Public Notice | Other | 2 | 2017 |
| Lead and Copper Rule | MR | 1 | 2004 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.