Los Angeles County, CA
ZIP 90601
In ZIP 90601, 8 of the 12 things we check have at least one part graded D or F.
- Drinking water: Suburban Water Systems-Whittier has 2 contaminants at or over an EPA legal limit; 18 contaminants are above health goals, led by lead at 30× California’s Public Health Goal.
- Nearest Superfund site: Waste Disposal, Inc., 1.6 miles away (3 within 10 miles).
- Largest share of modeled toxic air from industry: Sterigenics-Ontario Facility (17%), mostly ethylene oxide.
- Fine particles (PM2.5) average 13.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
- About 250,208 kg of agricultural pesticides are applied in the county each year.
Grades for ZIP 90601
- Superfund sites nearbyF
- Factories and industrial sitesF
- Oil and gas wellsF
- Parks and nature nearbyB to D
- Air qualityF
- Drinking water qualityF
- Pesticide useB to D
- Neighborhood health statusA to C
- Past wildfire impactsA to C
- Past flood impactsA
- Noise levelsA to D
Based on 15 census tracts · compiled September 10, 2026 · how each grade works and its sources
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