Porter County, IN

ZIP 46385

In ZIP 46385, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Cuii - Twin Lakes meets every EPA legal limit; 7 contaminants are above health goals, led by lead at 36× California’s Public Health Goal.
• Nearest Superfund site: Cam-Or Inc., 8.1 miles away.
• Largest share of modeled toxic air from industry: Tms International LLC (52%), mostly chromium compounds.
• Fine particles (PM2.5) average 7.9 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 46385

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

Based on 18 census tracts · compiled September 10, 2026 · how each grade works and its sources

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