Washtenaw County, MI

ZIP 48189

In ZIP 48189, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Harbor Cove Apartments has 1 contaminant at or over an EPA legal limit; 3 contaminants are above health goals, led by arsenic at 2,984× California’s Public Health Goal.
• Nearest Superfund site: Rasmussen's Dump, 1.3 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Progressive Metal Forming Inc (79%), mostly cobalt.
• Fine particles (PM2.5) average 7.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 123,801 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 48189

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

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

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