Yakima County, WA

ZIP 98930

In ZIP 98930, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Wilgus Housing Water System meets every EPA legal limit; 2 contaminants are above health goals, led by arsenic at 360× California’s Public Health Goal.
• Closer to Superfund sites than 54% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Alto Columbia LLC (78%), mostly acetaldehyde.
• Fine particles (PM2.5) average 7.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 2,424,406 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 98930

• Superfund sites nearbyA to C
• Factories and industrial sitesA to B
• Oil and gas wellsB to D
• Parks and nature nearbyC to D
• Air qualityB
• Drinking water qualityC to D
• Pesticide useF
• Neighborhood health statusC to D
• Past wildfire impactsA to F
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsC to D

Based on 5 census tracts · compiled September 10, 2026 · how each grade works and its sources

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