San Diego County, CA

ZIP 92028

In ZIP 92028, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Camp Pendleton (South) has 2 contaminants at or over an EPA legal limit; 26 contaminants are above health goals, led by pfos at 44× California’s Public Health Goal.
• Closer to Superfund sites than 80% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Steris Inc (86%), mostly ethylene oxide.
• Fine particles (PM2.5) average 7.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 344,328 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 92028

• Superfund sites nearbyA to F
• Factories and industrial sitesA to B
• Oil and gas wellsA
• Parks and nature nearbyB to D
• Air qualityA to C
• Drinking water qualityB to F
• Pesticide useC to F
• Neighborhood health statusA to D
• Past wildfire impactsD to F
• Past flood impactsA
• Noise levelsA
• Radiation signalsC to D

Based on 15 census tracts · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…