Bexar County, TX

ZIP 78248

In ZIP 78248, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Cadillac Water meets every EPA legal limit; 8 contaminants are above health goals, led by lead at 9.9× California’s Public Health Goal.
• Nearest Superfund site: Bandera Road Ground Water Plume, 8.1 miles away.
• Largest share of modeled toxic air from industry: Calaveras Power Station (40%), mostly chromium.
• Fine particles (PM2.5) average 8.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 58,581 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 78248

• Superfund sites nearbyA
• Factories and industrial sitesB
• Oil and gas wellsA
• Parks and nature nearbyD to F
• Air qualityD
• Drinking water qualityD
• Pesticide useB
• Neighborhood health statusB to C
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to B

Based on 3 census tracts · compiled September 10, 2026 · how each grade works and its sources

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