Thurston County, WA

ZIP 98503

In ZIP 98503, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Washington Land Yacht Harbor has 1 contaminant at or over an EPA legal limit; 2 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 (90%), mostly certain glycol ethers.
• Fine particles (PM2.5) average 6.0 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 98503

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

Based on 13 census tracts · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…