Lafourche Parish, LA

ZIP 70345

In ZIP 70345, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Lafourche Water District 1 meets every EPA legal limit; 18 contaminants are above health goals, led by lead at 11× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Discovery Producer Services:Larose Cryogenic Plant (71%), mostly formaldehyde.
• Fine particles (PM2.5) average 7.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 72,160 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 70345

• Superfund sites nearbyA
• Factories and industrial sitesA to C
• Oil and gas wellsD to F
• Parks and nature nearbyB to C
• Air qualityA to C
• Drinking water qualityD
• Pesticide useD to F
• Neighborhood health statusD to F
• Past wildfire impactsA
• Past flood impactsA to C
• Noise levelsA
• Radiation signalsB to C

Based on 4 census tracts · compiled September 10, 2026 · how each grade works and its sources

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