Westchester County, NY

ZIP 10566

In ZIP 10566, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Peekskill City has 1 contaminant at or over an EPA legal limit; 11 contaminants are above health goals, led by arsenic at 185× California’s Public Health Goal.
• Nearest Superfund site: Magna Metals, 2.1 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Colors & Effects USA LLC - Peekskill Facility (82%), mostly chromium compounds.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 5,510 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 10566

• Superfund sites nearbyF
• Factories and industrial sitesB to D
• Oil and gas wellsA
• Parks and nature nearbyC to F
• Air qualityB to C
• Drinking water qualityC to D
• Pesticide useB to C
• Neighborhood health statusB
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to D
• Radiation signalsD

Based on 5 census tracts · compiled September 10, 2026 · how each grade works and its sources

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