Middlesex County, MA

ZIP 01770

In ZIP 01770, 2 of the 12 things we check have at least one part graded D or F.

• Drinking water: Leland Farms has 2 contaminants at or over an EPA legal limit; 5 contaminants are above health goals, led by pfos at 4.5× California’s Public Health Goal.
• Nearest Superfund site: Natick Laboratory Army Research, Development, and Engineering Center, 4.1 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Certainteed LLC (22%), mostly cobalt.
• Fine particles (PM2.5) average 6.2 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 01770

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

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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