Monmouth County, NJ

ZIP 07721

In ZIP 07721, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Sayreville W Dept has 1 contaminant at or over an EPA legal limit; 9 contaminants are above health goals, led by pfoa at 786× California’s Public Health Goal.
• Nearest Superfund site: Raritan Bay Slag, 1.8 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Steris Isomedix Services (39%), mostly ethylene oxide.
• Fine particles (PM2.5) average 7.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 48,569 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 07721

• Superfund sites nearbyF
• Factories and industrial sitesB
• Oil and gas wellsA
• Parks and nature nearbyB
• Air qualityC
• Drinking water qualityC to D
• Pesticide useB
• Neighborhood health statusA
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsD
• Radiation signalsC

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

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