Lancaster County, PA

ZIP 17545

In ZIP 17545, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Mt Gretna Heights Water Sys meets every EPA legal limit; 7 contaminants are above health goals, led by pfos at 2.8× California’s Public Health Goal.
• Nearest Superfund site: Ugi Columbia Gas Plant, 6.0 miles away.
• Largest share of modeled toxic air from industry: Goodhart Sons Inc. (75%), mostly chromium.
• Fine particles (PM2.5) average 9.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 123,840 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 17545

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

Based on 14 census tracts · compiled September 10, 2026 · how each grade works and its sources

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