Weld County, CO

ZIP 80642

In ZIP 80642, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Lochbuie Town Of meets every EPA legal limit; 10 contaminants are above health goals, led by pfos at 3.1× California’s Public Health Goal.
• Closer to Superfund sites than 64% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Terumo Bct Sterilization Services Inc (29%), mostly ethylene oxide.
• Fine particles (PM2.5) average 5.4 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 80642

• Superfund sites nearbyA to D
• Factories and industrial sitesB to C
• Oil and gas wellsD
• Parks and nature nearbyC to D
• Air qualityA
• Drinking water qualityC to F
• Pesticide useF
• Neighborhood health statusB to C
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to F
• Radiation signalsF

Based on 6 census tracts · compiled September 10, 2026 · how each grade works and its sources

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