Sullivan County, NH

ZIP 03603

In ZIP 03603, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Bellows Falls Water Dept meets every EPA legal limit; 5 contaminants are above health goals, led by chloroform at 90× California’s Public Health Goal.
• Nearest Superfund site: Bfi Sanitary Landfill (rockingham), 2.1 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Sturm Ruger & Co. Inc. (91%), mostly chromium.
• Fine particles (PM2.5) average 5.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 5,538 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 03603

• Superfund sites nearbyD to F
• Factories and industrial sitesB to C
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityA
• Drinking water qualityA to C
• Pesticide useC to D
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsD

Based on 2 census tracts · compiled October 25, 2026 · how each grade works and its sources

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