Washoe County, NV

ZIP 89436

In ZIP 89436, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Great Basin Water Co Spanish Springs meets every EPA legal limit; 9 contaminants are above health goals, led by arsenic at 2,178× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Tesla Gigafactory (99%), mostly cobalt compounds.
• Fine particles (PM2.5) average 9.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 11,722 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 89436

• Superfund sites nearbyA
• Factories and industrial sitesD to F
• Oil and gas wellsA
• Parks and nature nearbyA to C
• Air qualityC to F
• Drinking water qualityC
• Pesticide useA to C
• Neighborhood health statusA to D
• Past wildfire impactsD to F
• Past flood impactsA to B
• Noise levelsA to B
• Radiation signalsC to D

Based on 15 census tracts · compiled October 25, 2026 · how each grade works and its sources

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