Obion County, TN

ZIP 38233

In ZIP 38233, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Mason Hall Development Corp meets every EPA legal limit; 1 contaminant is above health goals, led by nitrate at 1.5× https://journals.plos.org/water/article?id=10.1371/journal.pwat.0000329, https://www.polkcountyiowa.gov/media/lixlchbz/ciswra-currents-of-change_final-scientific-assessment-of-source-water-research-report_jun272025.pdf#page=222.
• Closer to Superfund sites than 54% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Green Plains Obion LLC (59%), mostly acrolein.
• Fine particles (PM2.5) average 6.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 235,981 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 38233

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

Based on 4 census tracts · compiled October 25, 2026 · how each grade works and its sources

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