Union County, NJ

ZIP 07901

In ZIP 07901, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Chatham Water Dept meets every EPA legal limit; 7 contaminants are above health goals, led by pfoa at 386× California’s Public Health Goal.
• Nearest Superfund site: Rolling Knolls Lf, 3.9 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Eto Sterilization (29%), mostly ethylene oxide.
• Fine particles (PM2.5) average 8.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 528 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 07901

• Superfund sites nearbyD
• Factories and industrial sitesB to C
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityB to D
• Drinking water qualityC
• Pesticide useA
• Neighborhood health statusA
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to D
• Radiation signalsB to D

Based on 7 census tracts · compiled October 25, 2026 · how each grade works and its sources

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