New Haven County, CT

ZIP 06705

In ZIP 06705, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Countryside Apartments meets every EPA legal limit; 2 contaminants are above health goals, led by lead at 43× California’s Public Health Goal.
• Nearest Superfund site: Scovill Industrial Landfill, 1.4 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Mott Metallurgical Corp (49%), mostly chromium compounds.
• Fine particles (PM2.5) average 6.9 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 06705

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

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

Loading the full report, with every source…