Riverside County, CA
ZIP 92570
In ZIP 92570, 10 of the 12 things we check have at least one part graded D or F.
- Drinking water: Riverside, City Of has 2 contaminants at or over an EPA legal limit; 21 contaminants are above health goals, led by lead at 37× California’s Public Health Goal.
- Nearest Superfund site: March Air Force Base, 2.8 miles away.
- Largest share of modeled toxic air from industry: Sterigenics-Ontario Facility (57%), 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 1,172,577 kg of agricultural pesticides are applied in the county each year.
Grades for ZIP 92570
- Superfund sites nearbyA to F
- Factories and industrial sitesB to D
- Oil and gas wellsA
- Parks and nature nearbyC to D
- Air qualityA to F
- Drinking water qualityD to F
- Pesticide useD to F
- Neighborhood health statusA to D
- Past wildfire impactsA to F
- Past flood impactsA to C
- Noise levelsA to D
- Radiation signalsC to D
Based on 17 census tracts · compiled September 10, 2026 · how each grade works and its sources
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