Calcasieu Parish, LA

ZIP 70646

In ZIP 70646, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Jeff Davis Water And Sewer Commission 1 meets every EPA legal limit; 10 contaminants are above health goals, led by lead at 12× California’s Public Health Goal.
• Closer to Superfund sites than 57% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Lacc LLC Us/Lotte Chemical Louisiana LLC (49%), 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 73,525 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 70646

• Superfund sites nearbyC
• Factories and industrial sitesD
• Oil and gas wellsF
• Parks and nature nearbyD
• Air qualityC
• Drinking water qualityD
• Pesticide useF
• Neighborhood health statusC
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsB

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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