Los Angeles County, CA

ZIP 91125

In ZIP 91125, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Pasadena Water And Power meets every EPA legal limit; 25 contaminants are above health goals, led by pfos at 1.8× California’s Public Health Goal.
• Nearest Superfund site: San Gabriel Valley (area 3), 3.3 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Certified Alloy Products Inc (23%), mostly ethylene oxide.
• Fine particles (PM2.5) average 12.5 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 91125

• Superfund sites nearbyF
• Factories and industrial sitesD
• Oil and gas wellsC
• Parks and nature nearbyF
• Air qualityF
• Drinking water qualityF
• Pesticide useB
• Neighborhood health statusA
• Past wildfire impactsD
• Past flood impactsA
• Noise levelsA

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

Loading the full report, with every source…