Washtenaw County, MI

ZIP 48190

In ZIP 48190, 1 of the 12 things we check have at least one part graded D or F.

• Drinking water: Sumpter Township meets every EPA legal limit; 3 contaminants are above health goals, led by tthm at 56× Peer-Reviewed Research.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Jaytec LLC (39%), mostly chromium.
• Fine particles (PM2.5) average 6.9 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 48190

• Superfund sites nearbyA
• Factories and industrial sitesB
• Oil and gas wellsC
• Parks and nature nearbyC
• Air qualityB
• Drinking water qualityB
• Pesticide useD
• Neighborhood health statusB
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsC
• Radiation signalsB

Based on 1 census tract · compiled October 25, 2026 · how each grade works and its sources

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