Cumberland County, ME

ZIP 04105

In ZIP 04105, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Portland Water District-Greater has 1 contaminant at or over an EPA legal limit; 6 contaminants are above health goals, led by uranium at 233× California’s Public Health Goal.
• Nearest Superfund site: Keddy Mill, 5.2 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Pioneer Plastics Corp (33%), mostly formaldehyde.
• Fine particles (PM2.5) average 5.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 9,458 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 04105

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

Based on 3 census tracts · compiled September 10, 2026 · how each grade works and its sources

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