Riverside County, CA
ZIP 92570
In ZIP 92570, 9 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; 18 contaminants are above health goals, led by pfhxs at 1.8× California Notification Level.
- Nearest Superfund site: March Air Force Base, 2.8 miles away.
- Largest share of modeled toxic air from industry: Sterigenics-Ontario Facility (50%), 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 nearbyA to C
- Air qualityA to F
- Drinking water qualityC to F
- Pesticide useC to F
- Neighborhood health statusA to D
- Past wildfire impactsA to F
- Past flood impactsA to C
- Noise levelsA to D
- Radiation signalsB to D
Based on 17 census tracts · compiled October 25, 2026 · how each grade works and its sources
Loading the full report, with every source…