Hillsborough, NH

ZIP 03033

In ZIP 03033, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Badger Hill has 3 contaminants at or over an EPA legal limit; 9 contaminants are above health goals, led by thallium at 100× California’s Public Health Goal.
• Nearest Superfund site: Fletcher's Paint Works & Storage, 6.3 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Hitchiner Countergravity Cast Operations (Vco/Dco/Mct) (54%), mostly cobalt.
• Fine particles (PM2.5) average 5.6 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 24,072 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 03033

• Superfund sites nearbyD
• Factories and industrial sitesB
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityA
• Drinking water qualityD
• Pesticide useD
• Neighborhood health statusB
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsF

Based on 2 census tracts · compiled September 10, 2026 · how each grade works and its sources

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