JOYCE WATER SUPPLY
PWS ID: LA1127008 · MANDEVILLE, Louisiana 70471
Population Served
474
Total Violations
400
Health-Based Violations
296
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 158
- County
- Winn Parish
- School/Daycare
- No
- MCL Violations
- 284
- Monitoring Violations
- 65
- Treatment Tech Violations
- 12
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MCL | 215 | 2025 |
| Total Haloacetic Acids (HAA5) | MCL | 66 | 2020 |
| Coliform (TCR) | MR | 39 | 2014 |
| Public Notice | Other | 25 | 2020 |
| Chlorine | MR | 15 | 2014 |
| Groundwater Rule | TT | 12 | 2020 |
| Consumer Confidence Rule | Other | 9 | 2011 |
| TTHM | MR | 7 | 2016 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2015 |
| Coliform (TCR) | MCL | 3 | 1998 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.