San Joaquin County, CA

ZIP 95236

In ZIP 95236, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Lockeford Community Serv. Dist. meets every EPA legal limit; 3 contaminants are above health goals, led by arsenic at 635× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Owens-Brockway Glass Container Inc Plant #22 (43%), mostly chromium.
• Fine particles (PM2.5) average 8.7 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 95236

• Superfund sites nearbyA
• Factories and industrial sitesA to B
• Oil and gas wellsA
• Parks and nature nearbyB to F
• Air qualityD to F
• Drinking water qualityA to C
• Pesticide useC to F
• Neighborhood health statusC to D
• Past wildfire impactsA to D
• Past flood impactsC
• Noise levelsA
• Radiation signalsC

Based on 3 census tracts · compiled October 25, 2026 · how each grade works and its sources

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