Norfolk County, MA

ZIP 02170

In ZIP 02170, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Quincy Water Dept. (Mwra) meets every EPA legal limit; 2 contaminants are above health goals, led by bromodichloromethane at 40× California’s Public Health Goal.
• Nearest Superfund site: Lower Neponset River, 4.2 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Depuy Synthes A Johnson & Johnson Co (25%), mostly cobalt.
• Fine particles (PM2.5) average 6.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 5,589 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 02170

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

Based on 7 census tracts · compiled September 10, 2026 · how each grade works and its sources

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