New London County, CT

ZIP 06338

In ZIP 06338, 2 of the 12 things we check have at least one part graded D or F.

• Drinking water: Groton Utilities meets every EPA legal limit; 8 contaminants are above health goals, led by lead at 116× California’s Public Health Goal.
• Nearest Superfund site: New London Submarine Base, 5.4 miles away.
• Largest share of modeled toxic air from industry: Pcc Structurals (74%), 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 06338

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

Based on 1 census tract · compiled October 25, 2026 · how each grade works and its sources

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