Hillsborough, FL

ZIP 33635

In ZIP 33635, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Hcwrc/Pebble Creek Subdivision has 2 contaminants at or over an EPA legal limit; 10 contaminants are above health goals, led by pfos at 6.1× California’s Public Health Goal.
• Nearest Superfund site: Southern Solvents, Inc., 5.9 miles away.
• Largest share of modeled toxic air from industry: Chromalloy Castings (35%), mostly cobalt.
• Fine particles (PM2.5) average 7.9 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 33635

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

Based on 6 census tracts · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…