Adams County, CO

ZIP 80601

In ZIP 80601, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: South Adams County Wsd has 1 contaminant at or over an EPA legal limit; 13 contaminants are above health goals, led by arsenic at 385× California’s Public Health Goal.
• Nearest Superfund site: Rocky Mountain Arsenal (usarmy), 4.8 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Terumo Bct Sterilization Services Inc (72%), mostly ethylene oxide.
• Fine particles (PM2.5) average 6.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 542,391 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 80601

• Superfund sites nearbyA to F
• Factories and industrial sitesB to F
• Oil and gas wellsD to F
• Parks and nature nearbyB to C
• Air qualityA to B
• Drinking water qualityB to F
• Pesticide useC to F
• Neighborhood health statusA to D
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to F
• Radiation signalsF

Based on 15 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…