Rockingham County, NH

ZIP 03819

In ZIP 03819, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Hampstead Area Water has 2 contaminants at or over an EPA legal limit; 15 contaminants are above health goals, led by pfos at 7.5× California’s Public Health Goal.
• Nearest Superfund site: Ottati & Goss/kingston Steel Drum, 2.4 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Union Specialties Inc (38%), mostly hydrazine.
• Fine particles (PM2.5) average 5.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 18,148 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 03819

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

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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