Lancaster County, PA

ZIP 17603

In ZIP 17603, 9 of the 12 things we check have at least one part graded D or F.

• Drinking water: York Water Co meets every EPA legal limit; 14 contaminants are above health goals, led by lead at 42× California’s Public Health Goal.
• Nearest Superfund site: Ugi Columbia Gas Plant, 5.4 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Goodhart Sons Inc. (71%), mostly chromium.
• Fine particles (PM2.5) average 8.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 478,195 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 17603

• Superfund sites nearbyA to D
• Factories and industrial sitesC to F
• Oil and gas wellsA
• Parks and nature nearbyC to F
• Air qualityC to F
• Drinking water qualityD to F
• Pesticide useD to F
• Neighborhood health statusB to F
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to D
• Radiation signalsF

Based on 23 census tracts · compiled September 10, 2026 · how each grade works and its sources

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