Washington County, OK

ZIP 74022

In ZIP 74022, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Dewey Public Works Authority meets every EPA legal limit; 8 contaminants are above health goals, led by bromodichloromethane at 219× California’s Public Health Goal.
• Nearest Superfund site: National Zinc Corp., 4.8 miles away.
• Largest share of modeled toxic air from industry: Schlumberger Bartlesville Product Center (75%), mostly nickel.
• Fine particles (PM2.5) average 6.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 36,874 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 74022

• Superfund sites nearbyD
• Factories and industrial sitesA to B
• Oil and gas wellsB to F
• Parks and nature nearbyC to D
• Air qualityB
• Drinking water qualityC
• Pesticide useF
• Neighborhood health statusF
• Past wildfire impactsA to C
• Past flood impactsA
• Noise levelsC
• Radiation signalsB

Based on 3 census tracts · compiled October 25, 2026 · how each grade works and its sources

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