Lake County, IN
ZIP 46307
In ZIP 46307, 9 of the 12 things we check have at least one part graded D or F.
- Drinking water: Valparaiso Department Of Water Works meets every EPA legal limit; 8 contaminants are above health goals, led by bromodichloromethane at 116× California’s Public Health Goal.
- Nearest Superfund site: American Chemical Service, Inc., 1.3 miles away (3 within 10 miles).
- Largest share of modeled toxic air from industry: Tms International LLC (42%), mostly chromium compounds.
- Fine particles (PM2.5) average 8.1 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 46307
- Superfund sites nearbyA to F
- Factories and industrial sitesB to D
- Oil and gas wellsA to D
- Parks and nature nearbyB to F
- Air qualityB to D
- Drinking water qualityA to C
- Pesticide useC to F
- Neighborhood health statusB to F
- Past wildfire impactsA
- Past flood impactsA
- Noise levelsA to D
- Radiation signalsB to D
Based on 26 census tracts · compiled October 25, 2026 · how each grade works and its sources
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