ST MARTIN WATER DISTRICT 4 - CATAHOULA
PWS ID: LA1099004 · ST. MARTINVILLE, Louisiana 70582
Population Served
3,000
Total Violations
208
Health-Based Violations
114
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 1,000
- County
- St. Martin Parish
- School/Daycare
- No
- MCL Violations
- 106
- Monitoring Violations
- 45
- Treatment Tech Violations
- 8
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MCL | 58 | 2025 |
| Coliform (TCR) | MCL | 44 | 2012 |
| Public Notice | Other | 32 | 2014 |
| TTHM | MR | 22 | 2013 |
| Total Haloacetic Acids (HAA5) | MR | 22 | 2013 |
| Consumer Confidence Rule | Other | 8 | 2017 |
| Groundwater Rule | TT | 4 | 2011 |
| Revised Total Coliform Rule | TT | 4 | 2018 |
| Revised Total Coliform Rule | MCL | 4 | 2020 |
| Lead and Copper Rule | MR | 1 | 2021 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.