Ventura County, CA

ZIP 93001

In ZIP 93001, 9 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.
• Closer to Superfund sites than 58% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Nusil Technology LLC (48%), mostly xylene (mixed isomers).
• Fine particles (PM2.5) average 9.4 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 93001

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

Based on 13 census tracts · compiled September 10, 2026 · how each grade works and its sources

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