San Joaquin County, CA

ZIP 95242

In ZIP 95242, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: City Of Stockton has 1 contaminant at or over an EPA legal limit; 15 contaminants are above health goals, led by arsenic at 866× California’s Public Health Goal.
• Nearest Superfund site: Mccormick & Baxter Creosoting Co., 7.3 miles away.
• Largest share of modeled toxic air from industry: Owens-Brockway Glass Container Inc Plant #22 (65%), mostly chromium compounds.
• Fine particles (PM2.5) average 9.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 4,500,402 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 95242

• Superfund sites nearbyA to C
• Factories and industrial sitesB to D
• Oil and gas wellsA to D
• Parks and nature nearbyB to C
• Air qualityD to F
• Drinking water qualityA to F
• Pesticide useF
• Neighborhood health statusA to F
• Past wildfire impactsA
• Past flood impactsB to C
• Noise levelsA to C
• Radiation signalsA to D

Based on 15 census tracts · compiled October 25, 2026 · how each grade works and its sources

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