Benton County, OR

ZIP 97333

In ZIP 97333, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Weslinn Water Company has 2 contaminants at or over an EPA legal limit; 6 contaminants are above health goals, led by pfoa at 943× California’s Public Health Goal.
• Nearest Superfund site: United Chrome Products, Inc., 6.1 miles away.
• Largest share of modeled toxic air from industry: Cascade Pacific Pulp Halsey Pulp Mill (88%), mostly formaldehyde.
• Fine particles (PM2.5) average 5.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 79,252 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 97333

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

Based on 12 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…