Merced County, CA

ZIP 95312

In ZIP 95312, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Castle Airport has 2 contaminants at or over an EPA legal limit; 11 contaminants are above health goals, led by lead at 154× California’s Public Health Goal.
• Nearest Superfund site: Castle Air Force Base (6 Areas), 3.9 miles away.
• Largest share of modeled toxic air from industry: Gallo Glass Co (73%), mostly chromium compounds.
• Fine particles (PM2.5) average 10.6 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 3,159,442 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 95312

• Superfund sites nearbyD to F
• Factories and industrial sitesB to C
• Oil and gas wellsA
• Parks and nature nearbyC to D
• Air qualityF
• Drinking water qualityF
• Pesticide useF
• Neighborhood health statusC
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsC

Based on 2 census tracts · compiled September 10, 2026 · how each grade works and its sources

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