Sacramento County, CA

ZIP 95821

In ZIP 95821, 7 of the 12 things we check have at least one part graded D or F.

  • Drinking water: Sacramento Suburban Water District meets every EPA legal limit; 16 contaminants are above health goals, led by lead at 736× California’s Public Health Goal.
  • Nearest Superfund site: Mcclellan Air Force Base (ground Water Contamination), 2.6 miles away (3 within 10 miles).
  • Largest share of modeled toxic air from industry: Mitsubishi Chemical Carbon Fiber & Composites Inc. (67%), mostly hydrogen cyanide.
  • Fine particles (PM2.5) average 10.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
  • About 1,306,121 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 95821

  • Superfund sites nearbyF
  • Factories and industrial sitesC to D
  • Oil and gas wellsA
  • Parks and nature nearbyC
  • Air qualityF
  • Drinking water qualityB to F
  • Pesticide useC to D
  • Neighborhood health statusC to F
  • Past wildfire impactsA
  • Past flood impactsB
  • Noise levelsA to D
  • Radiation signalsB to C

Based on 15 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…

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