New Haven County, CT

ZIP 06762

In ZIP 06762, 2 of the 12 things we check have at least one part graded D or F.

• Drinking water: Watertown Water & Sewer Authority meets every EPA legal limit; 7 contaminants are above health goals, led by chloroform at 135× California’s Public Health Goal.
• Nearest Superfund site: Laurel Park, Inc., 1.7 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Mott Metallurgical Corp (35%), mostly chromium compounds.
• Fine particles (PM2.5) average 6.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 25,447 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 06762

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

Based on 3 census tracts · compiled October 25, 2026 · how each grade works and its sources

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