COUNTY WATER-SYSTEM LEDGER
Jefferson Parish, Louisiana
EPA’s September 2026 export lists 4 active community water systems serving Jefferson Parish, Louisiana, with 0 current-violation flags and 0 serious-violator flags among the covered systems.
Source: EPA SDWIS system-search export · Active community systems serving 2,500+ people · Snapshot 13 Sep 2026
01 / SYSTEMS
Water systems serving Jefferson Parish, Louisiana
EPA associates 4 covered systems with Jefferson Parish, Louisiana; their reported population-served values total 440,987 and may overlap.
Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| E Jefferson Ww District 1LA1051001 | 275,163 | Surface water | No current violation flagged |
| W Jefferson Ww District 2LA1051004 | 140,264 | Surface water | No current violation flagged |
| Gretna WaterworksLA1051003 | 17,026 | Surface water | No current violation flagged |
| Westwego WaterworksLA1051005 | 8,534 | Surface water purchased | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Jefferson Parish, Louisiana
EPA classifies 4 systems serving Jefferson Parish, Louisiana across 2 primary-source categories; Surface water is the largest category with 3 systems.
It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.