Ascension Parish, LA

ZIP 70774

In ZIP 70774, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Diversion Water - Chinquapin meets every EPA legal limit; 11 contaminants are above health goals, led by lead at 45× 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: Basf Corp (58%), mostly ethylene oxide.
• Fine particles (PM2.5) average 9.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 44,318 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 70774

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

Based on 6 census tracts · compiled September 10, 2026 · how each grade works and its sources

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