Orange County, CA

ZIP 92808

In ZIP 92808, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Yorba Linda Water District has 2 contaminants at or over an EPA legal limit; 13 contaminants are above health goals, led by arsenic at 1,119× California’s Public Health Goal.
• Nearest Superfund site: Orange County North Basin, 9.0 miles away.
• Largest share of modeled toxic air from industry: Sterigenics-Ontario Facility (32%), mostly ethylene oxide.
• Fine particles (PM2.5) average 8.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 206,209 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 92808

• Superfund sites nearbyA to D
• Factories and industrial sitesD to F
• Oil and gas wellsC to F
• Parks and nature nearbyA to B
• Air qualityF
• Drinking water qualityC to F
• Pesticide useB to C
• Neighborhood health statusA
• Past wildfire impactsF
• Past flood impactsC
• Noise levelsA to D
• Radiation signalsD

Based on 5 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…