Plymouth County, MA

ZIP 02045

In ZIP 02045, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Weir River Water System has 1 contaminant at or over an EPA legal limit; 24 contaminants are above health goals, led by lead at 13× California’s Public Health Goal.
• Nearest Superfund site: South Weymouth Naval Air Station, 9.0 miles away.
• Largest share of modeled toxic air from industry: Tecomet (32%), mostly cobalt.
• Fine particles (PM2.5) average 6.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 10,732 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 02045

• Superfund sites nearbyA
• Factories and industrial sitesC
• Oil and gas wellsA to B
• Parks and nature nearbyC to D
• Air qualityA
• Drinking water qualityF
• Pesticide useB
• Neighborhood health statusC
• Past wildfire impactsA
• Past flood impactsD
• Noise levelsA to D
• Radiation signalsC to D

Based on 3 census tracts · compiled September 10, 2026 · how each grade works and its sources

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