Kalkaska County, MI

ZIP 49646

In ZIP 49646, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Rapid River Meadows meets every EPA legal limit; 1 contaminant is above health goals, led by lead at 35× California’s Public Health Goal.
• Nearest Superfund site: Tar Lake, 7.1 miles away.
• Largest share of modeled toxic air from industry: Arauco Na Grayling Particleboard (81%), mostly formaldehyde.
• Fine particles (PM2.5) average 5.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 64,007 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 49646

• Superfund sites nearbyA to D
• Factories and industrial sitesA to B
• Oil and gas wellsD
• Parks and nature nearbyC
• Air qualityA
• Drinking water qualityD to F
• Pesticide useF
• Neighborhood health statusD to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to C
• Radiation signalsB

Based on 5 census tracts · compiled September 10, 2026 · how each grade works and its sources

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