Cass County, TX

ZIP 75555

In ZIP 75555, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: E M C Water Supply meets every EPA legal limit; 7 contaminants are above health goals, led by dibromochloromethane at 76× California’s Public Health Goal.
• Nearest Superfund site: Longhorn Army Ammunition Plant, 7.4 miles away.
• Largest share of modeled toxic air from industry: Uop-Shreveport Plant (32%), mostly formaldehyde.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 2,328 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 75555

• Superfund sites nearbyA to C
• Factories and industrial sitesA
• Oil and gas wellsD to F
• Parks and nature nearbyC
• Air qualityC
• Drinking water qualityB to C
• Pesticide useD
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsA to B

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

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