Lewis County, WA

ZIP 98532

In ZIP 98532, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Napavine City Of has 1 contaminant at or over an EPA legal limit; 7 contaminants are above health goals, led by pfos at 17× California’s Public Health Goal.
• Nearest Superfund site: Hamilton/labree Roads Gw Contamination, 1.7 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Imperial Group Manufacturing (90%), mostly chromium.
• Fine particles (PM2.5) average 5.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 26,101 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 98532

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

Based on 11 census tracts · compiled September 10, 2026 · how each grade works and its sources

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