San Bernardino County, CA

ZIP 93558

In ZIP 93558, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Searles Valley Minerals Operations Inc meets every EPA legal limit; 9 contaminants are above health goals, led by lead at 55× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: US Dod Usaf Edwards Afb Ca (78%), mostly naphthalene.
• Fine particles (PM2.5) average 6.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 52,223 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 93558

• Superfund sites nearbyA
• Factories and industrial sitesB
• Oil and gas wellsA
• Parks and nature nearbyB
• Air qualityB
• Drinking water qualityD to F
• Pesticide useB
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsD

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

Loading the full report, with every source…