Monterey County, CA

ZIP 93955

In ZIP 93955, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Seaside Municipal Water System meets every EPA legal limit; 7 contaminants are above health goals, led by arsenic at 285× California’s Public Health Goal.
• Nearest Superfund site: Fort Ord, 1.7 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Granite Rock Co Monterey Branch Br341 (71%), mostly lead.
• Fine particles (PM2.5) average 7.6 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 3,834,203 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 93955

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

Based on 10 census tracts · compiled October 25, 2026 · how each grade works and its sources

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