New Haven County, CT

ZIP 06770

In ZIP 06770, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Waterbury Water Department meets every EPA legal limit; 21 contaminants are above health goals, led by 1,2,4-trichlorobenzene at 4.9× California’s Public Health Goal.
• Nearest Superfund site: Scovill Industrial Landfill, 2.6 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Mott Metallurgical Corp (39%), mostly chromium compounds.
• 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 06770

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

Based on 8 census tracts · compiled September 10, 2026 · how each grade works and its sources

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