Clear Creek County, CO

ZIP 80436

In ZIP 80436, 2 of the 12 things we check have at least one part graded D or F.

• Drinking water: St Marys Glacier Wsd meets every EPA legal limit; 6 contaminants are above health goals, led by arsenic at 131× California’s Public Health Goal.
• Nearest Superfund site: Central City, Clear Creek, 6.9 miles away.
• Largest share of modeled toxic air from industry: Terumo Bct Sterilization Services Inc (92%), mostly ethylene oxide.
• Fine particles (PM2.5) average 4.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 42 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 80436

• Superfund sites nearbyF
• Factories and industrial sitesA to B
• Oil and gas wellsA
• Parks and nature nearbyA
• Air qualityA
• Drinking water qualityC
• Pesticide useA
• Neighborhood health statusA to C
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsF

Based on 2 census tracts · compiled October 25, 2026 · how each grade works and its sources

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