New London County, CT

ZIP 06254

In ZIP 06254, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Norwich Public Utilities has 3 contaminants at or over an EPA legal limit; 14 contaminants are above health goals, led by pfos at 12× California’s Public Health Goal.
• Nearest Superfund site: Yaworski Waste Lagoon, 9.8 miles away.
• Largest share of modeled toxic air from industry: Pcc Structurals (57%), mostly cobalt.
• Fine particles (PM2.5) average 5.3 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 06254

• Superfund sites nearbyA
• Factories and industrial sitesC
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityA
• Drinking water qualityF
• Pesticide useD
• Neighborhood health statusD
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsD

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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