Lamb County, TX

ZIP 79339

In ZIP 79339, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: City Of Smyer has 1 contaminant at or over an EPA legal limit; 8 contaminants are above health goals, led by arsenic at 3,861× California’s Public Health Goal.
• Nearest Superfund site: State Road 114 Groundwater Plume, 6.0 miles away.
• Largest share of modeled toxic air from industry: Southwestern Public Service Co Tolk Station (61%), mostly peracetic acid.
• Fine particles (PM2.5) average 5.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 428,908 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 79339

• Superfund sites nearbyA to D
• Factories and industrial sitesA
• Oil and gas wellsB to F
• Parks and nature nearbyC to D
• Air qualityA
• Drinking water qualityC to F
• Pesticide useF
• Neighborhood health statusD
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsC to D

Based on 5 census tracts · compiled September 10, 2026 · how each grade works and its sources

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