Norfolk County, MA

ZIP 02494

In ZIP 02494, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Needham Water Dept has 2 contaminants at or over an EPA legal limit; 11 contaminants are above health goals, led by pfos at 4.4× California’s Public Health Goal.
• Nearest Superfund site: Materials Technology Laboratory (usarmy), 6.1 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Certainteed LLC (28%), mostly cobalt.
• Fine particles (PM2.5) average 7.0 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 02494

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

Based on 4 census tracts · compiled September 10, 2026 · how each grade works and its sources

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