Hillsborough, NH

ZIP 03047

In ZIP 03047, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Crotched Mountain School meets every EPA legal limit; 5 contaminants are above health goals, led by arsenic at 250× California’s Public Health Goal.
• Nearest Superfund site: Savage Municipal Water Supply, 4.9 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Hitchiner Countergravity Cast Operations (Vco/Dco/Mct) (41%), mostly chromium.
• Fine particles (PM2.5) average 5.5 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 03047

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

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

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