Hillsborough, FL

ZIP 33534

In ZIP 33534, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: The Palms At Dover Mhp meets every EPA legal limit; 8 contaminants are above health goals, led by arsenic at 542× California’s Public Health Goal.
• Nearest Superfund site: Raleigh Street Dump, 5.8 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Advanced Airfoil Components (86%), mostly cobalt.
• Fine particles (PM2.5) average 8.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 2,111,467 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 33534

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

Based on 6 census tracts · compiled October 25, 2026 · how each grade works and its sources

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