Ventura County, CA

ZIP 93066

In ZIP 93066, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Calleguas Municipal Water Dist meets every EPA legal limit; 14 contaminants are above health goals, led by lead at 35× California’s Public Health Goal.
• Nearest Superfund site: Pacific Coast Pipeline, 9.6 miles away.
• Largest share of modeled toxic air from industry: Klune Industries Inc. (32%), mostly diisocyanates.
• Fine particles (PM2.5) average 8.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 2,496,015 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 93066

• Superfund sites nearbyA to C
• Factories and industrial sitesC
• Oil and gas wellsF
• Parks and nature nearbyC
• Air qualityC to D
• Drinking water qualityC to F
• Pesticide useF
• Neighborhood health statusB to C
• Past wildfire impactsF
• Past flood impactsA
• Noise levelsA
• Radiation signalsC

Based on 2 census tracts · compiled September 10, 2026 · how each grade works and its sources

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