Pierce County, WA

ZIP 98328

In ZIP 98328, 2 of the 12 things we check have at least one part graded D or F.

• Drinking water: JBLM Lewis has 1 contaminant at or over an EPA legal limit; 10 contaminants are above health goals, led by pfos at 5.7× California’s Public Health Goal.
• Nearest Superfund site: Hidden Valley Landfill (thun Field), 10.0 miles away.
• Largest share of modeled toxic air from industry: Westrock Tacoma Mill (26%), mostly formaldehyde.
• Fine particles (PM2.5) average 5.0 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 98328

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

Based on 5 census tracts · compiled October 25, 2026 · how each grade works and its sources

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