Plaquemines Parish, LA

ZIP 70037

In ZIP 70037, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Port Sulphur Water District meets every EPA legal limit; 14 contaminants are above health goals, led by pfos at 3× 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: St Charles Operations (Taft/Star) Union Carbide Corp (46%), mostly ethylene oxide.
• Fine particles (PM2.5) average 7.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 4,556 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 70037

• Superfund sites nearbyA
• Factories and industrial sitesC to D
• Oil and gas wellsD to F
• Parks and nature nearbyC to D
• Air qualityA to D
• Drinking water qualityC
• Pesticide useC to D
• Neighborhood health statusB to F
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to D
• Radiation signalsA

Based on 4 census tracts · compiled October 25, 2026 · how each grade works and its sources

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