King County, WA

ZIP 98051

In ZIP 98051, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: New Arcadia Water System meets every EPA legal limit; 2 contaminants are above health goals, led by lead at 33× California’s Public Health Goal.
• Nearest Superfund site: Queen City Farms, 4.9 miles away.
• Largest share of modeled toxic air from industry: Puget Sound Coatings (46%), mostly diisocyanates.
• Fine particles (PM2.5) average 6.0 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 98051

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

Based on 4 census tracts · compiled September 10, 2026 · how each grade works and its sources

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