St. Helena Parish, LA

ZIP 70422

In ZIP 70422, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Adventures Rv Resort meets every EPA legal limit; 3 contaminants are above health goals, led by lead at 12× California’s Public Health Goal.
• Closer to Superfund sites than 54% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Basf Corp (42%), mostly ethylene oxide.
• Fine particles (PM2.5) average 7.3 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 70422

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

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

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