Nassau County, NY

ZIP 11575

In ZIP 11575, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Hempstead (V) has 2 contaminants at or over an EPA legal limit; 10 contaminants are above health goals, led by arsenic at 375× California’s Public Health Goal.
• Nearest Superfund site: Pasley Solvents & Chemicals, Inc., 4.2 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Oerlikon Metco (US) Inc (81%), mostly chromium.
• Fine particles (PM2.5) average 8.0 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 11575

• Superfund sites nearbyF
• Factories and industrial sitesB
• Oil and gas wellsA
• Parks and nature nearbyB to D
• Air qualityD
• Drinking water qualityB to F
• Pesticide useA
• Neighborhood health statusB
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to D
• Radiation signalsA

Based on 5 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…