Douglas County, CO

ZIP 80129

In ZIP 80129, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Sedalia Wsd meets every EPA legal limit; 9 contaminants are above health goals, led by arsenic at 260× California’s Public Health Goal.
• Nearest Superfund site: Air Force Plant Pjks, 6.2 miles away.
• Largest share of modeled toxic air from industry: Terumo Bct Sterilization Services Inc (93%), mostly ethylene oxide.
• Fine particles (PM2.5) average 7.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 41,186 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 80129

• Superfund sites nearbyA to D
• Factories and industrial sitesC to D
• Oil and gas wellsA
• Parks and nature nearbyC to D
• Air qualityA to C
• Drinking water qualityC to D
• Pesticide useB to C
• Neighborhood health statusA to C
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to C
• Radiation signalsD to F

Based on 8 census tracts · compiled September 10, 2026 · how each grade works and its sources

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