Cecil County, MD

ZIP 21915

In ZIP 21915, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Chesapeake Estates Mobile Home Park has 1 contaminant at or over an EPA legal limit; 8 contaminants are above health goals, led by pfos at 3.4× California’s Public Health Goal.
• Nearest Superfund site: Sealand Limited, 7.2 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Croda Inc (75%), mostly ethylene oxide.
• Fine particles (PM2.5) average 6.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 89,478 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 21915

• Superfund sites nearbyD
• Factories and industrial sitesC
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityB
• Drinking water qualityC to F
• Pesticide useF
• Neighborhood health statusD
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsC

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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