Thurston County, WA

ZIP 98506

In ZIP 98506, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Olympia City Of has 2 contaminants at or over an EPA legal limit; 10 contaminants are above health goals, led by pfos at 4.3× California’s Public Health Goal.
• Nearest Superfund site: Palermo Well Field Ground Water Contamination, 5.9 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Crown Beverage Packaging (67%), mostly certain glycol ethers.
• Fine particles (PM2.5) average 5.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 11,135 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 98506

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

Based on 7 census tracts · compiled September 10, 2026 · how each grade works and its sources

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