Litchfield County, CT

ZIP 06058

In ZIP 06058, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Aquarion-Litchfield Regional meets every EPA legal limit; 10 contaminants are above health goals, led by lead at 9.2× California’s Public Health Goal.
• Nearest Superfund site: Ge - Housatonic River, 9.8 miles away.
• Largest share of modeled toxic air from industry: Mott Metallurgical Corp (78%), mostly chromium compounds.
• Fine particles (PM2.5) average 5.9 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 06058

• Superfund sites nearbyC
• Factories and industrial sitesB
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityA
• Drinking water qualityC to D
• Pesticide useD
• Neighborhood health statusC
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsD

Based on 2 census tracts · compiled September 10, 2026 · how each grade works and its sources

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