Clackamas County, OR

ZIP 97023

In ZIP 97023, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Polehn Heights Water Assn meets every EPA legal limit; 3 contaminants are above health goals, led by arsenic at 331× California’s Public Health Goal.
• Nearest Superfund site: Northwest Pipe & Casing/hall Process Company, 7.4 miles away.
• Largest share of modeled toxic air from industry: Gunderson LLC (85%), mostly nickel.
• Fine particles (PM2.5) average 10.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 90,281 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 97023

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

Based on 7 census tracts · compiled October 25, 2026 · how each grade works and its sources

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