Bexar County, TX

ZIP 78073

In ZIP 78073, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: City Of Lytle meets every EPA legal limit; 10 contaminants are above health goals, led by lead at 31× California’s Public Health Goal.
• Nearest Superfund site: R & H Oil/tropicana Energy, 7.3 miles away.
• Largest share of modeled toxic air from industry: Arvin Sango (86%), mostly chromium.
• Fine particles (PM2.5) average 8.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 63,607 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 78073

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

Based on 6 census tracts · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…