Harrison County, MS

ZIP 39574

In ZIP 39574, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Palmer Creek Utility Assc, Inc meets every EPA legal limit; 4 contaminants are above health goals, led by arsenic at 83× California’s Public Health Goal.
• Nearest Superfund site: Chemfax, Inc., 5.6 miles away.
• Largest share of modeled toxic air from industry: Rolls-Royce Naval Marine Inc (63%), mostly chromium.
• Fine particles (PM2.5) average 7.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 14,503 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 39574

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

Based on 10 census tracts · compiled October 25, 2026 · how each grade works and its sources

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