Thurston County, WA

ZIP 98576

In ZIP 98576, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Yelm City Of meets every EPA legal limit; 7 contaminants are above health goals, led by lead at 31× California’s Public Health Goal.
• Closer to Superfund sites than 54% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Transalta Centralia Generation / Mining (43%), mostly chromium.
• Fine particles (PM2.5) average 5.4 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 98576

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

Based on 6 census tracts · compiled September 10, 2026 · how each grade works and its sources

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