New Haven County, CT

ZIP 06443

In ZIP 06443, 1 of the 12 things we check have at least one part graded D or F.

• Drinking water: Ctwc - Legend Hill System meets every EPA legal limit; 7 contaminants are above health goals, led by di(2-ethylhexyl) phthalate at 29× California’s Public Health Goal.
• Nearest Superfund site: Durham Meadows, 9.4 miles away.
• Largest share of modeled toxic air from industry: Ametek Specialty Metal Products Div (50%), mostly cobalt compounds.
• Fine particles (PM2.5) average 5.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 25,447 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 06443

• Superfund sites nearbyA to C
• Factories and industrial sitesC to D
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityA
• Drinking water qualityB to C
• Pesticide useB
• Neighborhood health statusB to C
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to B

Based on 5 census tracts · compiled October 25, 2026 · how each grade works and its sources

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