New Haven County, CT

ZIP 06704

In ZIP 06704, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Arrowhead By The Lake Association, Inc. meets every EPA legal limit; 4 contaminants are above health goals, led by lead at 41× California’s Public Health Goal.
• Nearest Superfund site: Scovill Industrial Landfill, 0.7 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: E & J Parts Cleaning Inc (30%), mostly trichloroethylene.
• Fine particles (PM2.5) average 6.7 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 06704

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

Based on 11 census tracts · compiled September 10, 2026 · how each grade works and its sources

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