Hamilton County, TN

ZIP 37404

In ZIP 37404, 9 of the 12 things we check have at least one part graded D or F.

• Drinking water: Walker County Water Authority has 2 contaminants at or over an EPA legal limit; 10 contaminants are above health goals, led by pfos at 10× California’s Public Health Goal.
• Nearest Superfund site: Southside Chattanooga Lead, 1.4 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Lamberti Synthesis USA Inc (48%), 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 37404

• Superfund sites nearbyF
• Factories and industrial sitesF
• Oil and gas wellsA to C
• Parks and nature nearbyD to F
• Air qualityC to D
• Drinking water qualityC to F
• Pesticide useB to D
• Neighborhood health statusB to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsD

Based on 13 census tracts · compiled September 10, 2026 · how each grade works and its sources

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