Warren County, NJ

ZIP 07831

In ZIP 07831, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Nj American Water - Washington/Oxford has 2 contaminants at or over an EPA legal limit; 19 contaminants are above health goals, led by pfos at 5.9× California’s Public Health Goal.
• Nearest Superfund site: Pohatcong Valley Ground Water Contamination, 3.8 miles away.
• Largest share of modeled toxic air from industry: B. Braun Medical Inc Manufacturing Div (34%), mostly ethylene oxide.
• Fine particles (PM2.5) average 6.5 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 07831

• Superfund sites nearbyF
• Factories and industrial sitesB
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityA
• Drinking water qualityF
• Pesticide useF
• Neighborhood health statusB
• Past wildfire impactsA
• Past flood impactsD
• Noise levelsD
• Radiation signalsD

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

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