Placer County, CA

ZIP 95747

In ZIP 95747, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Cal Am - Antelope meets every EPA legal limit; 10 contaminants are above health goals, led by vanadium at 1.4× California’s Public Health Goal.
• Nearest Superfund site: Mcclellan Air Force Base (ground Water Contamination), 5.7 miles away.
• Largest share of modeled toxic air from industry: Mitsubishi Chemical Carbon Fiber & Composites Inc. (60%), mostly hydrogen cyanide.
• Fine particles (PM2.5) average 10.6 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 85,451 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 95747

• Superfund sites nearbyA to D
• Factories and industrial sitesC
• Oil and gas wellsA
• Parks and nature nearbyD to F
• Air qualityF
• Drinking water qualityD to F
• Pesticide useC to F
• Neighborhood health statusA to D
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA to D
• Radiation signalsC to D

Based on 17 census tracts · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…