ST MARYS WATER SYSTEM
PWS ID: LA1015023 · PLAIN DEALING, Louisiana 71064
Population Served
294
Total Violations
228
Health-Based Violations
137
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 98
- County
- Bossier Parish
- School/Daycare
- No
- MCL Violations
- 112
- Monitoring Violations
- 69
- Treatment Tech Violations
- 25
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MCL | 109 | 2025 |
| TTHM | MR | 24 | 2017 |
| Coliform (TCR) | MR | 23 | 2013 |
| Groundwater Rule | TT | 22 | 2023 |
| Total Haloacetic Acids (HAA5) | MR | 20 | 2014 |
| Consumer Confidence Rule | Other | 11 | 2015 |
| Public Notice | Other | 5 | 2025 |
| Coliform (TCR) | MCL | 3 | 2009 |
| Lead and Copper Rule | MR | 2 | 2024 |
| Revised Total Coliform Rule | TT | 2 | 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.