York County, PA

ZIP 17339

In ZIP 17339, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Mount Airy Mhp has 1 contaminant at or over an EPA legal limit; 6 contaminants are above health goals, led by lead at 41× California’s Public Health Goal.
• Nearest Superfund site: Navy Ships Parts Control Center, 5.8 miles away.
• Largest share of modeled toxic air from industry: U.S. Boiler Inc. (23%), mostly chromium.
• Fine particles (PM2.5) average 8.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 253,382 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 17339

• Superfund sites nearbyA to D
• Factories and industrial sitesB to D
• Oil and gas wellsA to B
• Parks and nature nearbyC to D
• Air qualityC to D
• Drinking water qualityD to F
• Pesticide useD to F
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsB to C
• Noise levelsA
• Radiation signalsD to F

Based on 5 census tracts · compiled September 10, 2026 · how each grade works and its sources

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