Litchfield County, CT

ZIP 06790

In ZIP 06790, 6 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, 3.2 miles away.
• Largest share of modeled toxic air from industry: Mott Metallurgical Corp (42%), mostly chromium compounds.
• Fine particles (PM2.5) average 5.8 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 06790

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

Based on 13 census tracts · compiled October 25, 2026 · how each grade works and its sources

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