York County, PA

ZIP 17356

In ZIP 17356, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Collinsville Mhp has 2 contaminants at or over an EPA legal limit; 5 contaminants are above health goals, led by pfos at 15× California’s Public Health Goal.
• Nearest Superfund site: Modern Sanitation Landfill, 1.7 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Tate Access Floors Inc. (70%), mostly chromium.
• Fine particles (PM2.5) average 8.8 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 17356

• Superfund sites nearbyC to F
• Factories and industrial sitesD to F
• Oil and gas wellsA
• Parks and nature nearbyC to D
• Air qualityC to F
• Drinking water qualityC to F
• Pesticide useC to D
• Neighborhood health statusB to D
• Past wildfire impactsA
• Past flood impactsB to C
• Noise levelsA
• Radiation signalsF

Based on 10 census tracts · compiled October 25, 2026 · how each grade works and its sources

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