Essex County, MA

ZIP 01830

In ZIP 01830, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Hampstead Area Water meets every EPA legal limit; 12 contaminants are above health goals, led by pfos at 2.2× California’s Public Health Goal.
• Nearest Superfund site: Haverhill Municipal Landfill, 2.8 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Union Specialties Inc (33%), mostly hydrazine.
• Fine particles (PM2.5) average 6.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 21,474 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 01830

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

Based on 9 census tracts · compiled October 25, 2026 · how each grade works and its sources

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