Santa Barbara County, CA
ZIP 93454
In ZIP 93454, 10 of the 12 things we check have at least one part graded D or F.
- Drinking water: Cuyama Community Services District has 1 contaminant at or over an EPA legal limit; 8 contaminants are above health goals, led by arsenic at 6,984× California’s Public Health Goal.
- Nearest Superfund site: Casmalia Resources, 5.6 miles away.
- Largest share of modeled toxic air from industry: Phillips 66 Co-Santa Maria Refinery (76%), mostly hydrogen sulfide.
- Fine particles (PM2.5) average 6.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
- About 1,826,041 kg of agricultural pesticides are applied in the county each year.
Grades for ZIP 93454
- Superfund sites nearbyA to D
- Factories and industrial sitesA to F
- Oil and gas wellsA to F
- Parks and nature nearbyA to D
- Air qualityA to B
- Drinking water qualityB to F
- Pesticide useD to F
- Neighborhood health statusA to D
- Past wildfire impactsC to F
- Past flood impactsB
- Noise levelsA to D
- Radiation signalsB to F
Based on 23 census tracts · compiled October 25, 2026 · how each grade works and its sources
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