Calaveras County, CA

ZIP 95252

In ZIP 95252, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Valley Springs Pud meets every EPA legal limit; 6 contaminants are above health goals, led by arsenic at 385× California’s Public Health Goal.
• Closer to Superfund sites than 56% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Ampine: A Div Of Timber Products (100%), mostly diisocyanates.
• Fine particles (PM2.5) average 8.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 8,792 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 95252

• Superfund sites nearbyA to C
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyB
• Air qualityF
• Drinking water qualityB to C
• Pesticide useC to D
• Neighborhood health statusC to F
• Past wildfire impactsC to F
• Past flood impactsC
• Noise levelsA
• Radiation signalsB to C

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

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