Hendricks County, IN
ZIP 46123
In ZIP 46123, 7 of the 12 things we check have at least one part graded D or F.
- Drinking water: Citizens Water - Indianapolis meets every EPA legal limit; 13 contaminants are above health goals, led by arsenic at 245× California’s Public Health Goal.
- Nearest Superfund site: Reilly Tar & Chemical Corp. (indianapolis Plant), 7.5 miles away (3 within 10 miles).
- Largest share of modeled toxic air from industry: Linde Advanced Material Technologies Inc (42%), mostly chromium.
- Fine particles (PM2.5) average 8.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
- About 171,741 kg of agricultural pesticides are applied in the county each year.
Grades for ZIP 46123
- Superfund sites nearbyA to C
- Factories and industrial sitesB to D
- Oil and gas wellsA
- Parks and nature nearbyC to D
- Air qualityD to F
- Drinking water qualityA to C
- Pesticide useD to F
- Neighborhood health statusB to D
- Past wildfire impactsA
- Past flood impactsA
- Noise levelsA to D
- Radiation signalsD to F
Based on 11 census tracts · compiled October 25, 2026 · how each grade works and its sources
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