VILLAGE OF CALVIN WATER SYSTEM
PWS ID: LA1127002 · CALVIN, Louisiana 71410
Population Served
591
Total Violations
1,195
Health-Based Violations
733
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 220
- County
- Winn Parish
- School/Daycare
- No
- MCL Violations
- 692
- Monitoring Violations
- 258
- Treatment Tech Violations
- 41
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MCL | 491 | 2025 |
| Total Haloacetic Acids (HAA5) | MCL | 201 | 2023 |
| Public Notice | Other | 156 | 2023 |
| TTHM | MR | 108 | 2023 |
| Total Haloacetic Acids (HAA5) | MR | 91 | 2023 |
| Consumer Confidence Rule | Other | 37 | 2022 |
| Groundwater Rule | TT | 37 | 2025 |
| Chlorine | MR | 21 | 2016 |
| Coliform (TCR) | MR | 19 | 2016 |
| Lead and Copper Rule | MR | 15 | 2023 |
| Revised Total Coliform Rule | MON | 4 | 2016 |
| Revised Total Coliform Rule | TT | 3 | 2016 |
| 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.