Boulder County, CO
ZIP 80302
In ZIP 80302, 10 of the 12 things we check have at least one part graded D or F.
- Drinking water: Pine Brook Hills Wd meets every EPA legal limit; 10 contaminants are above health goals, led by pfos at 2.1× California’s Public Health Goal.
- Nearest Superfund site: Marshall Landfill, 4.6 miles away (2 within 10 miles).
- Largest share of modeled toxic air from industry: Terumo Bct Sterilization Services Inc (86%), 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 17,327 kg of agricultural pesticides are applied in the county each year.
Grades for ZIP 80302
- Superfund sites nearbyA to F
- Factories and industrial sitesB to D
- Oil and gas wellsA to D
- Parks and nature nearbyB to F
- Air qualityA to B
- Drinking water qualityA to F
- Pesticide useC to D
- Neighborhood health statusA to C
- Past wildfire impactsA to D
- Past flood impactsA to F
- Noise levelsA to D
- Radiation signalsD to F
Based on 15 census tracts · compiled September 10, 2026 · how each grade works and its sources
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