Merced County, CA

ZIP 95315

In ZIP 95315, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Hilmar County Water District meets every EPA legal limit; 9 contaminants are above health goals, led by arsenic at 1,481× California’s Public Health Goal.
• Nearest Superfund site: Valley Wood Preserving, Inc., 3.5 miles away.
• Largest share of modeled toxic air from industry: Gallo Glass Co (52%), mostly chromium compounds.
• Fine particles (PM2.5) average 10.8 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 95315

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

Based on 5 census tracts · compiled October 25, 2026 · how each grade works and its sources

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