Windham County, CT

ZIP 06377

In ZIP 06377, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Sterling Water System meets every EPA legal limit; 7 contaminants are above health goals, led by bromodichloromethane at 53× California’s Public Health Goal.
• Nearest Superfund site: Revere Textile Prints Corp., 1.1 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Pcc Structurals (49%), mostly cobalt.
• Fine particles (PM2.5) average 5.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 28,025 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 06377

• Superfund sites nearbyD
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityA
• Drinking water qualityB
• Pesticide useD
• Neighborhood health statusD
• Past wildfire impactsA
• Past flood impactsF
• Noise levelsA
• Radiation signalsF

Based on 1 census tract · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…