Pierce County, WA

ZIP 98409

In ZIP 98409, 2 of the 12 things we check have at least one part graded D or F.

• Drinking water: Tacoma Water Division City Of meets every EPA legal limit; 9 contaminants are above health goals, led by pfoa at 229× California’s Public Health Goal.
• Nearest Superfund site: Commencement Bay, South Tacoma Channel, 1.6 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Puget Sound Coatings (28%), mostly diisocyanates.
• Fine particles (PM2.5) average 6.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 18,075 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 98409

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

Based on 9 census tracts · compiled October 25, 2026 · how each grade works and its sources

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