Isabella County, MI

ZIP 48858

In ZIP 48858, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Mapleview Estates has 1 contaminant at or over an EPA legal limit; 2 contaminants are above health goals, led by arsenic at 4,477× California’s Public Health Goal.
• Nearest Superfund site: Velsicol Chemical Corp. (michigan), 4.2 miles away.
• Largest share of modeled toxic air from industry: Morbark LLC (88%), mostly chromium compounds.
• Fine particles (PM2.5) average 6.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 63,921 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 48858

• Superfund sites nearbyA to F
• Factories and industrial sitesB to C
• Oil and gas wellsA to F
• Parks and nature nearbyC to F
• Air qualityA to B
• Drinking water qualityC to F
• Pesticide useD to F
• Neighborhood health statusB to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to F
• Radiation signalsB to C

Based on 18 census tracts · compiled September 10, 2026 · how each grade works and its sources

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