Terrebonne Parish, LA

ZIP 70356

In ZIP 70356, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Schriever Water Treatment Service Area meets every EPA legal limit; 10 contaminants are above health goals, led by bromodichloromethane at 162× California’s Public Health Goal.
• Closer to Superfund sites than 70% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Bollinger Houma Shipyards LLC (67%), mostly chromium.
• Fine particles (PM2.5) average 7.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 24,318 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 70356

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

Based on 2 census tracts · compiled October 25, 2026 · how each grade works and its sources

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