McLennan County, TX

ZIP 76633

In ZIP 76633, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Gholson Wsc meets every EPA legal limit; 7 contaminants are above health goals, led by copper, free at 82× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Precise Hard Chrome LLC (90%), mostly chromium compounds.
• Fine particles (PM2.5) average 7.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 137,226 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 76633

• Superfund sites nearbyA
• Factories and industrial sitesA to C
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityB to C
• Drinking water qualityC to F
• Pesticide useD to F
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsC

Based on 4 census tracts · compiled September 10, 2026 · how each grade works and its sources

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