Limestone County, TX

ZIP 76686

In ZIP 76686, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Corbet Wsc meets every EPA legal limit; 8 contaminants are above health goals, led by bromodichloromethane at 274× 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: Nucor Steel - Jewett Texas Div (52%), mostly chromium compounds.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 50,792 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 76686

• Superfund sites nearbyA
• Factories and industrial sitesA
• Oil and gas wellsD
• Parks and nature nearbyC
• Air qualityC
• Drinking water qualityB to C
• Pesticide useF
• Neighborhood health statusF
• Noise levelsA
• Radiation signalsB

Based on 1 census tract · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…