Suffolk County, MA

ZIP 02136

In ZIP 02136, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Dedham Westwood Water Dist. has 2 contaminants at or over an EPA legal limit; 9 contaminants are above health goals, led by chloroform at 53× California’s Public Health Goal.
• Nearest Superfund site: Lower Neponset River, 1.1 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Certainteed LLC (35%), mostly cobalt.
• Fine particles (PM2.5) average 6.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 1 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 02136

• Superfund sites nearbyD to F
• Factories and industrial sitesD to F
• Oil and gas wellsB
• Parks and nature nearbyB
• Air qualityA to B
• Drinking water qualityA to F
• Pesticide useA
• Neighborhood health statusB to D
• Past wildfire impactsA
• Past flood impactsD
• Noise levelsA to D
• Radiation signalsC to D

Based on 10 census tracts · compiled October 25, 2026 · how each grade works and its sources

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