Wasco County, OR

ZIP 97040

In ZIP 97040, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Tooley Water District meets every EPA legal limit; 7 contaminants are above health goals, led by arsenic at 417× California’s Public Health Goal.
• Nearest Superfund site: Martin-Marietta Aluminum Co., 5.6 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Cardinal Glass (98%), mostly chromium.
• Fine particles (PM2.5) average 6.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 423,254 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 97040

• Superfund sites nearbyC
• Factories and industrial sitesB
• Oil and gas wellsA
• Parks and nature nearbyA
• Air qualityA
• Drinking water qualityA to C
• Pesticide useF
• Neighborhood health statusD
• Past wildfire impactsF
• Past flood impactsA
• Noise levelsA
• Radiation signalsB

Based on 1 census tract · compiled October 25, 2026 · how each grade works and its sources

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