Allegany County, MD

ZIP 21524

In ZIP 21524, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Lavale Sanitary Commission meets every EPA legal limit; 9 contaminants are above health goals, led by chloroform at 65× California’s Public Health Goal.
• Nearest Superfund site: Limestone Road, 6.0 miles away.
• Largest share of modeled toxic air from industry: Aes Warrior Run Inc (82%), mostly arsenic compounds.
• Fine particles (PM2.5) average 6.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 16,147 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 21524

• Superfund sites nearbyD
• Factories and industrial sitesB
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityB
• Drinking water qualityC
• Pesticide useD
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsD
• Noise levelsD
• Radiation signalsF

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

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