Webster Parish, LA
ZIP 71055
In ZIP 71055, 6 of the 12 things we check have at least one part graded D or F.
- Drinking water: Town Of Sibley Water System meets every EPA legal limit; 9 contaminants are above health goals, led by pfoa at 100× California’s Public Health Goal.
- Nearest Superfund site: Louisiana Army Ammunition Plant, 7.9 miles away.
- Largest share of modeled toxic air from industry: Weyerhaeuser Nr - Arcadia Osb (28%), mostly formaldehyde.
- Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
- About 8,578 kg of agricultural pesticides are applied in the county each year.
Grades for ZIP 71055
- Superfund sites nearbyA to F
- Factories and industrial sitesA to B
- Oil and gas wellsA to F
- Parks and nature nearbyB to C
- Air qualityB to C
- Drinking water qualityB to D
- Pesticide useC to F
- Neighborhood health statusC to F
- Past wildfire impactsA
- Past flood impactsA to B
- Noise levelsA to D
- Radiation signalsA to B
Based on 12 census tracts · compiled October 25, 2026 · how each grade works and its sources
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