Los Angeles County, CA

ZIP 90003

In ZIP 90003, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Gswc - Southwest meets every EPA legal limit; 17 contaminants are above health goals, led by lead at 250× California’s Public Health Goal.
• Nearest Superfund site: Cooper Drum Co., 6.0 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Chevron Products Co. Div Of Chevron USA Inc. (32%), mostly chromium compounds.
• Fine particles (PM2.5) average 13.2 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 90003

• Superfund sites nearbyD to F
• Factories and industrial sitesF
• Oil and gas wellsF
• Parks and nature nearbyD to F
• Air qualityF
• Drinking water qualityF
• Pesticide useB
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D

Based on 32 census tracts · compiled September 10, 2026 · how each grade works and its sources

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