Grand Isle County, VT

ZIP 05458

In ZIP 05458, 2 of the 12 things we check have at least one part graded D or F.

• Drinking water: Grand Isle Consolidated Water District has 1 contaminant at or over an EPA legal limit; 8 contaminants are above health goals, led by vinyl chloride at 754× California’s Public Health Goal.
• Nearest Superfund site: Plattsburgh Air Force Base, 6.8 miles away.
• Largest share of modeled toxic air from industry: Globalfoundries U.S. 2 LLC - Vermont Facility (85%), mostly sulfuric acid.
• Fine particles (PM2.5) average 6.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 8,584 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 05458

• Superfund sites nearbyC
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyB
• Air qualityA
• Drinking water qualityD to F
• Pesticide useF
• Neighborhood health statusC
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA
• Radiation signalsB

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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