Los Angeles County, CA

ZIP 91046

In ZIP 91046, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Glendale-City, Water Dept. has 7 contaminants at or over an EPA legal limit; 38 contaminants are above health goals, led by thallium at 135× California’s Public Health Goal.
• Nearest Superfund site: San Fernando Valley (area 3), 1.0 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Certified Alloy Products Inc (31%), mostly cobalt.
• Fine particles (PM2.5) average 9.0 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 91046

• Superfund sites nearbyF
• Factories and industrial sitesC
• Oil and gas wellsC
• Parks and nature nearbyD
• Air qualityF
• Drinking water qualityC to F
• Pesticide useB
• Neighborhood health statusB
• Past wildfire impactsD
• Past flood impactsA
• Noise levelsA

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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