Smyth County, VA

ZIP 24370

In ZIP 24370, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Hidden Valley meets every EPA legal limit; 6 contaminants are above health goals, led by trichloroacetic acid at 225× California’s Public Health Goal.
• Nearest Superfund site: Saltville Waste Disposal Ponds, 4.7 miles away.
• Largest share of modeled toxic air from industry: Utility Trailer Manufacturing Co (38%), mostly chromium compounds.
• Fine particles (PM2.5) average 6.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 33,884 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 24370

• Superfund sites nearbyC to F
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityA
• Drinking water qualityB to F
• Pesticide useD
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA
• Radiation signalsF

Based on 4 census tracts · compiled October 25, 2026 · how each grade works and its sources

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