Clark County, WA

ZIP 98629

In ZIP 98629, 1 of the 12 things we check have at least one part graded D or F.

• Drinking water: Woodland Mhc Llc has 2 contaminants at or over an EPA legal limit; 9 contaminants are above health goals, led by pfoa at 1,029× California’s Public Health Goal.
• Nearest Superfund site: Toftdahl Drums, 8.7 miles away.
• Largest share of modeled toxic air from industry: Gunderson LLC (82%), mostly nickel.
• Fine particles (PM2.5) average 6.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 32,110 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 98629

• Superfund sites nearbyA
• Factories and industrial sitesB
• Oil and gas wellsA
• Parks and nature nearbyA to C
• Air qualityA
• Drinking water qualityB to F
• Pesticide useC
• Neighborhood health statusC
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsB to C

Based on 3 census tracts · compiled October 25, 2026 · how each grade works and its sources

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