Boulder County, CO
ZIP 80026
In ZIP 80026, 9 of the 12 things we check have at least one part graded D or F.
- Drinking water: San Lazaro Mfctd Housing Community has 2 contaminants at or over an EPA legal limit; 12 contaminants are above health goals, led by pfos at 7.3× California’s Public Health Goal.
- Nearest Superfund site: Marshall Landfill, 5.2 miles away (2 within 10 miles).
- Largest share of modeled toxic air from industry: Terumo Bct Sterilization Services Inc (87%), mostly ethylene oxide.
- Fine particles (PM2.5) average 6.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
- About 4,764 kg of agricultural pesticides are applied in the county each year.
Grades for ZIP 80026
- Superfund sites nearbyA to D
- Factories and industrial sitesA to D
- Oil and gas wellsD to F
- Parks and nature nearbyC to F
- Air qualityA to B
- Drinking water qualityC to F
- Pesticide useC to D
- Neighborhood health statusA to C
- Past wildfire impactsA
- Past flood impactsA to F
- Noise levelsA to D
- Radiation signalsD to F
Based on 12 census tracts · compiled September 10, 2026 · how each grade works and its sources
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