Merced County, CA

ZIP 95340

In ZIP 95340, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Le Grand Comm Services Dist has 1 contaminant at or over an EPA legal limit; 10 contaminants are above health goals, led by lead at 99× California’s Public Health Goal.
• Nearest Superfund site: Castle Air Force Base (6 Areas), 6.2 miles away.
• Largest share of modeled toxic air from industry: Ardagh Glass Inc (85%), mostly chromium compounds.
• Fine particles (PM2.5) average 10.7 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 95340

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

Based on 15 census tracts · compiled September 10, 2026 · how each grade works and its sources

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