Lewis County, NY

ZIP 13433

In ZIP 13433, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Lyons Falls Village has 1 contaminant at or over an EPA legal limit; 6 contaminants are above health goals, led by 1,2-dibromo-3-chloropropane at 167× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: St Lawrence Zinc Co Balmat 4 Mine & Mill (74%), mostly cadmium compounds.
• Fine particles (PM2.5) average 5.6 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 47,471 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 13433

• Superfund sites nearbyA
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityA
• Drinking water qualityB to D
• Pesticide useF
• Neighborhood health statusD
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA
• Radiation signalsC to D

Based on 3 census tracts · compiled September 10, 2026 · how each grade works and its sources

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