Pierce County, WA

ZIP 98323

In ZIP 98323, 1 of the 12 things we check have at least one part graded D or F.

• Drinking water: Ryanwood Improvement Assn meets every EPA legal limit; 6 contaminants are above health goals, led by pfos at 2.3× 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: Puget Sound Coatings (90%), mostly diisocyanates.
• Fine particles (PM2.5) average 5.7 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 98323

• Superfund sites nearbyC
• Factories and industrial sitesA
• Oil and gas wellsB
• Parks and nature nearbyB to C
• Air qualityA
• Drinking water qualityC to F
• Pesticide useB to C
• Neighborhood health statusC
• 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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