Fairfield County, CT

ZIP 06784

In ZIP 06784, 2 of the 12 things we check have at least one part graded D or F.

• Drinking water: Aquarion-Carmen Hill meets every EPA legal limit; 8 contaminants are above health goals, led by chloroform at 2.6× California’s Public Health Goal.
• Closer to Superfund sites than 94% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Mott Metallurgical Corp (37%), mostly chromium compounds.
• Fine particles (PM2.5) average 6.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 27,681 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 06784

• Superfund sites nearbyD to F
• Factories and industrial sitesA to B
• Oil and gas wellsA
• Parks and nature nearbyB
• Air qualityA
• Drinking water qualityA to C
• Pesticide useB to C
• Neighborhood health statusB
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsD to F

Based on 2 census tracts · compiled October 25, 2026 · how each grade works and its sources

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