Kern County, CA

ZIP 93203

In ZIP 93203, 10 of the 12 things we check have at least one part graded D or F.

• Drinking water: Golden Valley Municipal Water District meets every EPA legal limit; 11 contaminants are above health goals, led by lead at 99× California’s Public Health Goal.
• Nearest Superfund site: Brown & Bryant, Inc. (arvin Plant), 0.2 miles away.
• Largest share of modeled toxic air from industry: Building Materials Manufacturing Corp (44%), mostly formaldehyde.
• Fine particles (PM2.5) average 9.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 9,409,038 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 93203

• Superfund sites nearbyA to F
• Factories and industrial sitesA to C
• Oil and gas wellsA to F
• Parks and nature nearbyB to D
• Air qualityA to F
• Drinking water qualityD to F
• Pesticide useF
• Neighborhood health statusB to D
• Past wildfire impactsA to D
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsC to D

Based on 7 census tracts · compiled September 10, 2026 · how each grade works and its sources

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