Clark County, NV

ZIP 89178

In ZIP 89178, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Blue Diamond Water Co Op Inc meets every EPA legal limit; 6 contaminants are above health goals, led by arsenic at 300× 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: Emd Acquisition LLC (63%), mostly manganese compounds.
• Fine particles (PM2.5) average 7.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 7,640 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 89178

• Superfund sites nearbyA
• Factories and industrial sitesA to B
• Oil and gas wellsB to F
• Parks and nature nearbyB to F
• Air qualityA to C
• Drinking water qualityD
• Pesticide useB
• Neighborhood health statusA to B
• Past wildfire impactsC to D
• Past flood impactsA
• Noise levelsA
• Radiation signalsB to D

Based on 7 census tracts · compiled September 10, 2026 · how each grade works and its sources

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