Oxford County, ME

ZIP 04224

In ZIP 04224, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Wilton Water Department meets every EPA legal limit; 5 contaminants are above health goals, led by arsenic at 236× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Nd Paper Inc. - Rumford Div (96%), mostly cobalt compounds.
• Fine particles (PM2.5) average 5.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 6,747 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 04224

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

Based on 3 census tracts · compiled October 25, 2026 · how each grade works and its sources

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