Grant County, IN

ZIP 46989

In ZIP 46989, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Dunkirk Water Department meets every EPA legal limit; 10 contaminants are above health goals, led by arsenic at 425× California’s Public Health Goal.
• Nearest Superfund site: Marion (bragg) Dump, 5.4 miles away.
• Largest share of modeled toxic air from industry: Maxon Corp (56%), mostly chromium.
• Fine particles (PM2.5) average 7.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 200,813 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 46989

• Superfund sites nearbyA to C
• Factories and industrial sitesA to C
• Oil and gas wellsA to C
• Parks and nature nearbyD to F
• Air qualityC
• Drinking water qualityA to C
• Pesticide useF
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsF

Based on 4 census tracts · compiled October 25, 2026 · how each grade works and its sources

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