Lewis County, NY

ZIP 13626

In ZIP 13626, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Martinsburg Water District has 1 contaminant at or over an EPA legal limit; 7 contaminants are above health goals, led by nitrite at 17× https://pmc.ncbi.nlm.nih.gov/articles/PMC4535738/.
• Nearest Superfund site: Black River Pcbs, 9.1 miles away.
• Largest share of modeled toxic air from industry: St Lawrence Zinc Co Balmat 4 Mine & Mill (61%), mostly cadmium compounds.
• Fine particles (PM2.5) average 5.4 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 13626

• Superfund sites nearbyA to C
• Factories and industrial sitesA to B
• Oil and gas wellsB to F
• Parks and nature nearbyC
• Air qualityA
• Drinking water qualityC to D
• Pesticide useF
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA to F
• Radiation signalsC

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

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