Genesee County, MI

ZIP 48439

In ZIP 48439, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Charter Township Of Grand Blanc has 1 contaminant at or over an EPA legal limit; 7 contaminants are above health goals, led by arsenic at 9,146× California’s Public Health Goal.
• Nearest Superfund site: Cemetery Dump, 6.7 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Gm Truck Group Flint Assembly Plant (74%), mostly benzene.
• Fine particles (PM2.5) average 8.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 122,888 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 48439

• Superfund sites nearbyA to D
• Factories and industrial sitesA to B
• Oil and gas wellsA to B
• Parks and nature nearbyB to D
• Air qualityB to D
• Drinking water qualityB to F
• Pesticide useC to F
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsB

Based on 18 census tracts · compiled October 25, 2026 · how each grade works and its sources

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