Rockingham County, NH

ZIP 03840

In ZIP 03840, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Rye Water Dist has 2 contaminants at or over an EPA legal limit; 6 contaminants are above health goals, led by pfoa at 1,000× California’s Public Health Goal.
• Nearest Superfund site: Pease Air Force Base, 1.4 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Pratt & Whitney (72%), mostly cobalt.
• Fine particles (PM2.5) average 5.4 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 03840

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

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

Loading the full report, with every source…