Westchester County, NY

ZIP 10709

In ZIP 10709, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Yonkers City meets every EPA legal limit; 6 contaminants are above health goals, led by chloroform at 71× California’s Public Health Goal.
• Nearest Superfund site: Mattiace Petrochemical Co., Inc., 10.0 miles away.
• Largest share of modeled toxic air from industry: Eto Sterilization (26%), mostly cobalt.
• Fine particles (PM2.5) average 8.2 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 10709

• Superfund sites nearbyD
• Factories and industrial sitesC
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityD
• Drinking water qualityC
• Pesticide useA to B
• Neighborhood health statusA
• Past wildfire impactsA
• Past flood impactsD
• Noise levelsA to C

Based on 5 census tracts · compiled October 25, 2026 · how each grade works and its sources

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