Litchfield County, CT

ZIP 06791

In ZIP 06791, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Torrington Water Company meets every EPA legal limit; 7 contaminants are above health goals, led by trichloroacetic acid at 153× California’s Public Health Goal.
• Nearest Superfund site: Barkhamsted-New Hartford Landfill, 8.5 miles away.
• Largest share of modeled toxic air from industry: Mott Metallurgical Corp (45%), mostly chromium compounds.
• Fine particles (PM2.5) average 6.2 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 06791

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

Based on 4 census tracts · compiled October 25, 2026 · how each grade works and its sources

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