Pinellas County, FL

ZIP 34688

In ZIP 34688, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Tarpon Springs Water System has 2 contaminants at or over an EPA legal limit; 14 contaminants are above health goals, led by pfos at 35× California’s Public Health Goal.
• Nearest Superfund site: Stauffer Chemical Co. (tarpon Springs), 3.0 miles away.
• Largest share of modeled toxic air from industry: Chromalloy Castings (85%), mostly cobalt.
• Fine particles (PM2.5) average 7.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 4,529 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 34688

• Superfund sites nearbyC to D
• Factories and industrial sitesA to B
• Oil and gas wellsA
• Parks and nature nearbyC to D
• Air qualityB to C
• Drinking water qualityD to F
• Pesticide useB to C
• Neighborhood health statusB to D
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsB

Based on 8 census tracts · compiled September 10, 2026 · how each grade works and its sources

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