Ventura County, CA

ZIP 93042

In ZIP 93042, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: U.s.n., San Nicolas Island has 2 contaminants at or over an EPA legal limit; 16 contaminants are above health goals, led by arsenic at 9,321× California’s Public Health Goal.
• Nearest Superfund site: Halaco Engineering Company, 4.8 miles away.
• Largest share of modeled toxic air from industry: U.S. Navy Nbvc Naval Air Station Point Mugu (82%), mostly naphthalene.
• Fine particles (PM2.5) average 8.5 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 93042

• Superfund sites nearbyD
• Factories and industrial sitesA to C
• Oil and gas wellsA to D
• Parks and nature nearbyC to D
• Air qualityB to D
• Drinking water qualityC to F
• Pesticide useF
• Neighborhood health statusB to C
• Past wildfire impactsA to D
• 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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