Umatilla County, OR

ZIP 97882

In ZIP 97882, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: North Hill Water Corporation meets every EPA legal limit; 4 contaminants are above health goals, led by arsenic at 400× California’s Public Health Goal.
• Nearest Superfund site: Umatilla Army Depot (lagoons), 6.2 miles away.
• Largest share of modeled toxic air from industry: Boise White Paper LLC (39%), mostly acetaldehyde.
• Fine particles (PM2.5) average 6.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 1,456,135 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 97882

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

Based on 2 census tracts · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…