We found 6 public water systems in St. Charles county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| St Charles Water District 2 West Bank | Luling | 31,485 | 39 | 1 |
| St Charles Water District 1 East Bank | Luling | 29,517 | 48 | 2 |
| Shell Oil Co - Norco | County of St. Charles Parish | 3,000 | 0 | 0 |
| Union Carbide Attn:d.c.price | County of St. Charles Parish | 2,000 | 0 | 0 |
| G H R Corporation | County of St. Charles Parish | 60 | 0 | 0 |
| Lone Star Lounge | New Sarpy | 25 | 0 | 0 |