Jefferson Davis Parish, LA

ZIP 70546

In ZIP 70546, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Jeff Davis Central Waterworks District meets every EPA legal limit; 10 contaminants are above health goals, led by lead at 48× California’s Public Health Goal.
• Nearest Superfund site: Evr-Wood Treating/evangeline Refining Company, 2.5 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Lacc LLC Us/Lotte Chemical Louisiana LLC (50%), mostly ethylene oxide.
• Fine particles (PM2.5) average 7.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 232,244 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 70546

• Superfund sites nearbyA to F
• Factories and industrial sitesA to C
• Oil and gas wellsF
• Parks and nature nearbyC to D
• Air qualityC
• Drinking water qualityD to F
• Pesticide useF
• Neighborhood health statusD to F
• Past wildfire impactsA
• Past flood impactsB to C
• Noise levelsA to D
• Radiation signalsB to C

Based on 9 census tracts · compiled September 10, 2026 · how each grade works and its sources

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