TERRE DU LAC
PWS ID: MO4036059 · DES PERES, Missouri 63131-0000
Population Served
3,200
Total Violations
456
Health-Based Violations
365
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 1,351
- County
- St. Francois
- School/Daycare
- No
- MCL Violations
- 365
- Monitoring Violations
- 31
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Combined Radium (-226 and -228) | MCL | 198 | 2016 |
| Gross Alpha, Excl. Radon and U | MCL | 155 | 2012 |
| Public Notice | Other | 42 | 2017 |
| Coliform (TCR) | MR | 16 | 2010 |
| Coliform (TCR) | MCL | 12 | 2008 |
| Consumer Confidence Rule | Other | 9 | 2020 |
| Lead and Copper Rule | MR | 6 | 2009 |
| Groundwater Rule | Other | 3 | 2016 |
| Gross Alpha, Excl. Radon and U | MR | 3 | 1995 |
| Combined Uranium | MR | 2 | 2012 |
| Radium-228 | MR | 2 | 2012 |
| Radium-226 | MR | 2 | 2012 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.