Tangipahoa Parish, LA

ZIP 70466

In ZIP 70466, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Fourth Ward Water Works meets every EPA legal limit; 10 contaminants are above health goals, led by lead at 540× California’s Public Health Goal.
• Nearest Superfund site: Delatte Metals, 9.5 miles away.
• Largest share of modeled toxic air from industry: Shaw Walker La LLC (97%), mostly chromium.
• Fine particles (PM2.5) average 7.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 124,831 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 70466

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

Based on 7 census tracts · compiled September 10, 2026 · how each grade works and its sources

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