Warren County, NJ

ZIP 07840

In ZIP 07840, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Warren Haven Rehabilitation & Nursing Ct meets every EPA legal limit; 7 contaminants are above health goals, led by lead at 827× California’s Public Health Goal.
• Nearest Superfund site: Combe Fill South Landfill, 7.6 miles away.
• Largest share of modeled toxic air from industry: Abb Installation Products Inc. (23%), mostly hexachlorobenzene.
• Fine particles (PM2.5) average 6.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 78,994 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 07840

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

Based on 9 census tracts · compiled September 10, 2026 · how each grade works and its sources

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