St. James Parish, LA

ZIP 70743

In ZIP 70743, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: St James Water District 2 meets every EPA legal limit; 16 contaminants are above health goals, led by pfoa at 329× California’s Public Health Goal.
• Nearest Superfund site: Cleve Reber, 8.2 miles away.
• Largest share of modeled toxic air from industry: Basf Corp (26%), mostly ethylene oxide.
• Fine particles (PM2.5) average 8.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 67,003 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 70743

• Superfund sites nearbyA
• Factories and industrial sitesD
• Oil and gas wellsC
• Parks and nature nearbyC
• Air qualityD
• Drinking water qualityD
• Pesticide useF
• Neighborhood health statusD
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsC

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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