Fairfield County, CT

ZIP 06811

In ZIP 06811, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Aquarion-New Milford Regional has 2 contaminants at or over an EPA legal limit; 11 contaminants are above health goals, led by pfos at 5.2× California’s Public Health Goal.
• Nearest Superfund site: Brewster Well Field, 9.3 miles away.
• Largest share of modeled toxic air from industry: Schaeffler Aerospace USA Corp (63%), mostly 1-bromopropane.
• Fine particles (PM2.5) average 7.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 7,578 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 06811

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

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

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