Tulare County, CA

ZIP 93631

In ZIP 93631, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Dinuba, City Of meets every EPA legal limit; 13 contaminants are above health goals, led by vanadium at 3× California’s Public Health Goal.
• Nearest Superfund site: Selma Pressure Treating Company, 1.1 miles away.
• Largest share of modeled toxic air from industry: Excelsior Inc. (43%), mostly chromium.
• Fine particles (PM2.5) average 11.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 5,378,638 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 93631

• Superfund sites nearbyC to F
• Factories and industrial sitesC to D
• Oil and gas wellsA
• Parks and nature nearbyD
• Air qualityF
• Drinking water qualityD to F
• Pesticide useF
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA to B
• Radiation signalsD

Based on 11 census tracts · compiled September 10, 2026 · how each grade works and its sources

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