LAKE ST JOHN WATERWORKS DISTRICT 1
PWS ID: LA1029006 · FERRIDAY, Louisiana 71334
Population Served
2,067
Total Violations
731
Health-Based Violations
656
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 689
- County
- Concordia Parish
- School/Daycare
- No
- MCL Violations
- 652
- Monitoring Violations
- 56
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Total Haloacetic Acids (HAA5) | MCL | 419 | 2023 |
| TTHM | MCL | 233 | 2023 |
| TTHM | MR | 25 | 2015 |
| Total Haloacetic Acids (HAA5) | MR | 25 | 2015 |
| Consumer Confidence Rule | Other | 7 | 2017 |
| Coliform (TCR) | MR | 6 | 2006 |
| Public Notice | Other | 4 | 2022 |
| Groundwater Rule | TT | 4 | 2021 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.