Ventura County, CA

ZIP 93040

In ZIP 93040, 6 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, 3.4 miles away.
• Largest share of modeled toxic air from industry: National Cement Co Of California Inc (40%), mostly chromium.
• Fine particles (PM2.5) average 6.7 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 93040

• Superfund sites nearbyC to F
• Factories and industrial sitesB
• Oil and gas wellsF
• Parks and nature nearbyB to C
• Air qualityA to B
• Drinking water qualityC to F
• Pesticide useF
• Neighborhood health statusC
• Past wildfire impactsF
• Past flood impactsA
• Noise levelsA
• Radiation signalsD

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

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