Winkler County, TX

ZIP 79789

In ZIP 79789, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: City Of Wink meets every EPA legal limit; 8 contaminants are above health goals, led by arsenic at 618× California’s Public Health Goal.
• Nearest Superfund site: Highway 18 Ground Water, 2.1 miles away.
• Largest share of modeled toxic air from industry: Keystone Gas Plant (78%), mostly formaldehyde.
• Fine particles (PM2.5) average 5.6 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 2,172 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 79789

• Superfund sites nearbyD
• Factories and industrial sitesA
• Oil and gas wellsF
• Parks and nature nearbyC
• Air qualityA
• Drinking water qualityD
• Pesticide useD
• Neighborhood health statusC
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsB

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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