Travis County, TX

ZIP 78738

In ZIP 78738, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Lazy Nine Mud 1b meets every EPA legal limit; 8 contaminants are above health goals, led by bromodichloromethane at 304× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Tesla Giga Texas (59%), mostly polycyclic aromatic compounds.
• Fine particles (PM2.5) average 8.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 66,488 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 78738

• Superfund sites nearbyA
• Factories and industrial sitesB to F
• Oil and gas wellsA
• Parks and nature nearbyA to C
• Air qualityB to D
• Drinking water qualityB to C
• Pesticide useB to D
• Neighborhood health statusA to B
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsA to B

Based on 9 census tracts · compiled October 25, 2026 · how each grade works and its sources

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