Alpine County, CA

ZIP 95646

In ZIP 95646, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: South Tahoe Pud - Main meets every EPA legal limit; 7 contaminants are above health goals, led by pfos at 1.4× California’s Public Health Goal.
• Nearest Superfund site: Leviathan Mine, 9.0 miles away.
• Largest share of modeled toxic air from industry: Ampine: A Div Of Timber Products (100%), mostly diisocyanates.
• Fine particles (PM2.5) average 6.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 41,581 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 95646

• Superfund sites nearbyA to C
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyA to B
• Air qualityA
• Drinking water qualityC
• Pesticide useB to D
• Neighborhood health statusC to F
• Past wildfire impactsF
• Past flood impactsC
• Noise levelsA
• Radiation signalsD

Based on 2 census tracts · compiled October 25, 2026 · how each grade works and its sources

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