Miami County, IN

ZIP 46970

In ZIP 46970, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Prossers Country Estates meets every EPA legal limit; 2 contaminants are above health goals, led by arsenic at 499× California’s Public Health Goal.
• Nearest Superfund site: Cliff Drive Groundwater Contamination, 8.0 miles away.
• Largest share of modeled toxic air from industry: Haynes International Inc (49%), mostly cobalt.
• Fine particles (PM2.5) average 7.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 159,124 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 46970

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

Based on 13 census tracts · compiled October 25, 2026 · how each grade works and its sources

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