Westchester County, NY

ZIP 10546

In ZIP 10546, 2 of the 12 things we check have at least one part graded D or F.

• Drinking water: Ossining Water Department has 1 contaminant at or over an EPA legal limit; 11 contaminants are above health goals, led by pfoa at 614× California’s Public Health Goal.
• Nearest Superfund site: Magna Metals, 6.6 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Colors & Effects USA LLC - Peekskill Facility (54%), mostly chromium compounds.
• Fine particles (PM2.5) average 6.9 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 10546

• Superfund sites nearbyD
• Factories and industrial sitesC
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityB
• Drinking water qualityC to D
• Pesticide useB
• Neighborhood health statusA
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsC

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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