Fremont County, CO

ZIP 81212

In ZIP 81212, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Mountaindale Cg And Cabins meets every EPA legal limit; 8 contaminants are above health goals, led by arsenic at 450× California’s Public Health Goal.
• Nearest Superfund site: Lincoln Park, 2.9 miles away.
• Largest share of modeled toxic air from industry: Holcim (US) Inc Portland Plant (81%), mostly formaldehyde.
• Fine particles (PM2.5) average 5.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 7,622 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 81212

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

Based on 12 census tracts · compiled September 10, 2026 · how each grade works and its sources

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