Amador County, CA

ZIP 95665

In ZIP 95665, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Calaveras Pud meets every EPA legal limit; 5 contaminants are above health goals, led by chloroform at 95× California’s Public Health Goal.
• Closer to Superfund sites than 87% 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 41,581 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 95665

• Superfund sites nearbyC to F
• Factories and industrial sitesA to C
• Oil and gas wellsA
• Parks and nature nearbyB
• Air qualityD to F
• Drinking water qualityA to C
• Pesticide useD
• Neighborhood health statusD
• Past wildfire impactsC to D
• Past flood impactsC
• Noise levelsA
• Radiation signalsC to F

Based on 3 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…