Nassau County, NY

ZIP 11509

In ZIP 11509, 1 of the 12 things we check have at least one part graded D or F.

• Drinking water: Long Beach City meets every EPA legal limit; 8 contaminants are above health goals, led by lithium at 2.5× the USGS health-based screening level.
• Nearest Superfund site: Peninsula Boulevard Groundwater Plume, 3.9 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Eto Sterilization (60%), mostly ethylene oxide.
• Fine particles (PM2.5) average 7.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 348 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 11509

• Superfund sites nearbyD
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyB
• Air qualityC
• Drinking water qualityB
• Pesticide useA
• Neighborhood health statusB
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsC

Based on 1 census tract · compiled October 25, 2026 · how each grade works and its sources

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