Kittitas County, WA

ZIP 98926

In ZIP 98926, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Outlaw Camp meets every EPA legal limit; 4 contaminants are above health goals, led by arsenic at 460× 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: Triumph Actuation Systems-Yakima (85%), mostly chromium.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 79,224 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 98926

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

Based on 11 census tracts · compiled October 25, 2026 · how each grade works and its sources

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