Washington Parish, LA

ZIP 70427

In ZIP 70427, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Varnado Water Works - Pine meets every EPA legal limit; 6 contaminants are above health goals, led by arsenic at 218× California’s Public Health Goal.
• Nearest Superfund site: Colonial Creosote, 3.4 miles away.
• Largest share of modeled toxic air from industry: International Paper Bogalusa Mill (100%), mostly formaldehyde.
• Fine particles (PM2.5) average 7.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 28,567 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 70427

• Superfund sites nearbyA to F
• Factories and industrial sitesA to F
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityB
• Drinking water qualityA to C
• Pesticide useB to D
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsB to C
• Noise levelsA to D
• Radiation signalsA to B

Based on 8 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…