MADISONVILLE ON THE LAKE
PWS ID: LA1103176 · MANDEVILLE, Louisiana 70471
Population Served
51
Total Violations
44
Health-Based Violations
33
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 17
- County
- St. Tammany Parish
- School/Daycare
- No
- MCL Violations
- 10
- Monitoring Violations
- 0
- Treatment Tech Violations
- 23
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Groundwater Rule | TT | 22 | 2025 |
| Coliform (TCR) | MCL | 10 | 2015 |
| Consumer Confidence Rule | Other | 6 | 2024 |
| Public Notice | Other | 4 | 2023 |
| LEAD AND COPPER RULE REVISIONS | RPT | 1 | 2024 |
| LEAD AND COPPER RULE REVISIONS | TT | 1 | 2024 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.