Yolo County, CA

ZIP 95618

In ZIP 95618, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Uc - Davis meets every EPA legal limit; 8 contaminants are above health goals, led by vanadium at 1.1× California’s Public Health Goal.
• Nearest Superfund site: Frontier Fertilizer, 1.6 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Watts Regulator Co. (54%), mostly chromium.
• Fine particles (PM2.5) average 8.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 1,270,800 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 95618

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

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

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