Schenectady County, NY

ZIP 12306

In ZIP 12306, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: West Hill Water Company Inc. meets every EPA legal limit; 1 contaminant is above health goals, led by arsenic at 1,275× California’s Public Health Goal.
• Nearest Superfund site: Mercury Refining, Inc., 8.0 miles away.
• Largest share of modeled toxic air from industry: Si Group Inc (55%), mostly formaldehyde.
• Fine particles (PM2.5) average 7.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 4,986 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 12306

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

Based on 12 census tracts · compiled September 10, 2026 · how each grade works and its sources

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