Bay County, MI

ZIP 48747

In ZIP 48747, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Portsmouth Township meets every EPA legal limit; 2 contaminants are above health goals, led by tthm at 48× Peer-Reviewed Research.
• Nearest Superfund site: Bay City Middlegrounds, 4.2 miles away.
• Largest share of modeled toxic air from industry: Bay Cast - Center Street Plant (41%), mostly chromium compounds.
• Fine particles (PM2.5) average 6.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 258,486 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 48747

• Superfund sites nearbyC to F
• Factories and industrial sitesB to D
• Oil and gas wellsA to D
• Parks and nature nearbyC to D
• Air qualityA
• Drinking water qualityA to B
• Pesticide useF
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsA to B

Based on 3 census tracts · compiled October 25, 2026 · how each grade works and its sources

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