St. Tammany Parish, LA

ZIP 70464

In ZIP 70464, 2 of the 12 things we check have at least one part graded D or F.

• Drinking water: St Tam Parish - Abita Lakes meets every EPA legal limit; 11 contaminants are above health goals, led by arsenic at 775× California’s Public Health Goal.
• Nearest Superfund site: Picayune Wood Treating Site, 6.3 miles away.
• Largest share of modeled toxic air from industry: International Paper Bogalusa Mill (88%), mostly formaldehyde.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 4,970 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 70464

• Superfund sites nearbyA to C
• Factories and industrial sitesA to B
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityB to C
• Drinking water qualityC to D
• Pesticide useB
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsB

Based on 3 census tracts · compiled September 10, 2026 · how each grade works and its sources

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