Placer County, CA

ZIP 96145

In ZIP 96145, 1 of the 12 things we check have at least one part graded D or F.

• Drinking water: Alpine Springs County Water District meets every EPA legal limit; 3 contaminants are above health goals, led by arsenic at 378× 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: Pcc Structurals Carson City (57%), mostly cobalt.
• Fine particles (PM2.5) average 6.5 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 96145

• Superfund sites nearbyA
• Factories and industrial sitesA to B
• Oil and gas wellsA
• Parks and nature nearbyA
• Air qualityA
• Drinking water qualityA to C
• Pesticide useC
• Neighborhood health statusA to C
• Past wildfire impactsA to C
• Past flood impactsB
• Noise levelsA
• Radiation signalsB to F

Based on 4 census tracts · compiled October 25, 2026 · how each grade works and its sources

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