Jefferson Parish, LA

ZIP 70056

In ZIP 70056, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: New Orleans Carrollton Water Works has 2 contaminants at or over an EPA legal limit; 20 contaminants are above health goals, led by pfos at 4.2× California’s Public Health Goal.
• Nearest Superfund site: Agriculture Street Landfill, 5.4 miles away.
• Largest share of modeled toxic air from industry: Fmt Shipyard & Repair LLC (41%), mostly chromium.
• Fine particles (PM2.5) average 9.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 434 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 70056

• Superfund sites nearbyA to D
• Factories and industrial sitesF
• Oil and gas wellsA to D
• Parks and nature nearbyD to F
• Air qualityD to F
• Drinking water qualityD to F
• Pesticide useA to B
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to D
• Radiation signalsB

Based on 11 census tracts · compiled September 10, 2026 · how each grade works and its sources

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