Washington County, MD

ZIP 21713

In ZIP 21713, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Mount Aetna has 1 contaminant at or over an EPA legal limit; 7 contaminants are above health goals, led by pfos at 4.9× California’s Public Health Goal.
• Nearest Superfund site: Central Chemical (hagerstown), 7.1 miles away.
• Largest share of modeled toxic air from industry: Holcim(Us) Inc. (55%), mostly chromium.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 144,043 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 21713

• Superfund sites nearbyA to D
• Factories and industrial sitesA to C
• Oil and gas wellsA
• Parks and nature nearbyC to F
• Air qualityB to C
• Drinking water qualityB to D
• Pesticide useF
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA to D
• Radiation signalsC to F

Based on 6 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…