Lake County, IN

ZIP 46403

In ZIP 46403, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Ogden Dunes Water meets every EPA legal limit; 4 contaminants are above health goals, led by bromodichloromethane at 94× California’s Public Health Goal.
• Nearest Superfund site: Lake Sandy Jo (m&m Landfill), 4.3 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Tms International LLC (69%), mostly chromium compounds.
• Fine particles (PM2.5) average 8.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 152,546 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 46403

• Superfund sites nearbyA to F
• Factories and industrial sitesD to F
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityC to D
• Drinking water qualityB to C
• Pesticide useC to D
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsB to D
• Radiation signalsC to D

Based on 6 census tracts · compiled October 25, 2026 · how each grade works and its sources

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