Hamilton County, TN

ZIP 37421

In ZIP 37421, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Ringgold meets every EPA legal limit; 8 contaminants are above health goals, led by chloroform at 84× California’s Public Health Goal.
• Nearest Superfund site: Amnicola Dump, 5.8 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Lamberti Synthesis USA Inc (58%), mostly ethylene oxide.
• Fine particles (PM2.5) average 8.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 7,466 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 37421

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

Based on 15 census tracts · compiled October 25, 2026 · how each grade works and its sources

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