Washington County, OK

ZIP 74051

In ZIP 74051, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Ochelata Utility Authority meets every EPA legal limit; 8 contaminants are above health goals, led by lead at 60× California’s Public Health Goal.
• Nearest Superfund site: National Zinc Corp., 4.6 miles away.
• Largest share of modeled toxic air from industry: Sterling Specialty Chemicals LLC (71%), mostly ethylene oxide.
• Fine particles (PM2.5) average 7.1 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 74051

• Superfund sites nearbyC to D
• Factories and industrial sitesB to C
• Oil and gas wellsA to F
• Parks and nature nearbyC
• Air qualityB
• Drinking water qualityD to F
• Pesticide useF
• Neighborhood health statusD to F
• Past wildfire impactsA to D
• Past flood impactsA
• Noise levelsA to B
• Radiation signalsC

Based on 3 census tracts · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…