King County, WA

ZIP 98010

In ZIP 98010, 2 of the 12 things we check have at least one part graded D or F.

• Drinking water: Sugarloaf Water System has 1 contaminant at or over an EPA legal limit; 5 contaminants are above health goals, led by arsenic at 6,000× California’s Public Health Goal.
• Nearest Superfund site: Queen City Farms, 9.6 miles away.
• Largest share of modeled toxic air from industry: Puget Sound Coatings (45%), mostly diisocyanates.
• Fine particles (PM2.5) average 5.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 17,223 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 98010

• Superfund sites nearbyA to C
• Factories and industrial sitesB
• Oil and gas wellsD
• Parks and nature nearbyB to C
• Air qualityA
• Drinking water qualityC to F
• Pesticide useB
• Neighborhood health statusB
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsB

Based on 2 census tracts · compiled September 10, 2026 · how each grade works and its sources

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