Hillsborough, NH

ZIP 03070

In ZIP 03070, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Milford Water Utilities Dept meets every EPA legal limit; 5 contaminants are above health goals, led by lead at 113× 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) (68%), mostly cobalt.
• 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 03070

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

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

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