New London County, CT

ZIP 06351

In ZIP 06351, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Norwich Public Utilities has 1 contaminant at or over an EPA legal limit; 10 contaminants are above health goals, led by pfos at 5× California’s Public Health Goal.
• Nearest Superfund site: Yaworski Waste Lagoon, 5.7 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Pcc Structurals (66%), mostly cobalt.
• Fine particles (PM2.5) average 5.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 21,460 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 06351

• Superfund sites nearbyD
• Factories and industrial sitesB
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityA
• Drinking water qualityA to D
• Pesticide useC
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsC to F
• Noise levelsA to D
• Radiation signalsD to F

Based on 4 census tracts · compiled October 25, 2026 · how each grade works and its sources

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