San Bernardino County, CA
ZIP 92359
In ZIP 92359, 5 of the 12 things we check have at least one part graded D or F.
- Drinking water: East Valley Water District meets every EPA legal limit; 17 contaminants are above health goals, led by pfos at 2.1× California’s Public Health Goal.
- Nearest Superfund site: Norton Air Force Base (lndfll #2), 6.7 miles away.
- Largest share of modeled toxic air from industry: Sterigenics-Ontario Facility (57%), mostly ethylene oxide.
- Fine particles (PM2.5) average 9.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
- About 52,223 kg of agricultural pesticides are applied in the county each year.
Grades for ZIP 92359
- Superfund sites nearbyC to D
- Factories and industrial sitesA to C
- Oil and gas wellsA to C
- Parks and nature nearbyA to C
- Air qualityA to F
- Drinking water qualityA to C
- Pesticide useA to C
- Neighborhood health statusA to D
- Past wildfire impactsD to F
- Past flood impactsC
- Noise levelsA to B
- Radiation signalsC to F
Based on 4 census tracts · compiled October 25, 2026 · how each grade works and its sources
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