We found 7 public water systems in Plaquemines Parish county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Belle Chasse Water District | Belle Chasse | 17,391 | 36 | 18 |
| Port Sulphur Water District | County of Plaquemines Parish | 9,222 | 0 | 31 |
| Plaquemine Parish Water Works | County of Plaquemines Parish | 3,092 | 0 | 0 |
| Dalcour Waterworks District | County of Plaquemines Parish | 925 | 0 | 20 |
| Pointe A La Hache Water System | County of Plaquemines Parish | 653 | 0 | 43 |
| Woodland Industrial Park Water System | County of Plaquemines Parish | 200 | 0 | 0 |
| Freeport Sulphur | County of Plaquemines Parish | 150 | 0 | 0 |