Middlesex County, MA

ZIP 01826

In ZIP 01826, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Salem Water Dept has 1 contaminant at or over an EPA legal limit; 9 contaminants are above health goals, led by pfoa at 914× California’s Public Health Goal.
• Nearest Superfund site: Silresim Chemical Corp., 3.3 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Tecomet (26%), mostly chromium.
• Fine particles (PM2.5) average 6.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 34,462 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 01826

• Superfund sites nearbyA to F
• Factories and industrial sitesC to D
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityA to B
• Drinking water qualityC to D
• Pesticide useA to B
• Neighborhood health statusB to C
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsF

Based on 7 census tracts · compiled October 25, 2026 · how each grade works and its sources

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