East Baton Rouge Parish, LA

ZIP 70817

In ZIP 70817, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: City Of Denham Springs Water System meets every EPA legal limit; 13 contaminants are above health goals, led by arsenic at 275× California’s Public Health Goal.
• Nearest Superfund site: Dutchtown Treatment Plant, 7.9 miles away.
• Largest share of modeled toxic air from industry: Basf Corp (47%), mostly ethylene oxide.
• Fine particles (PM2.5) average 8.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 18,610 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 70817

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

Based on 9 census tracts · compiled September 10, 2026 · how each grade works and its sources

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