Pasco County, FL

ZIP 33543

In ZIP 33543, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Timber Lake Estates has 1 contaminant at or over an EPA legal limit; 7 contaminants are above health goals, led by pfos at 4.1× California’s Public Health Goal.
• Nearest Superfund site: Arkla Terra Property, 8.2 miles away.
• Largest share of modeled toxic air from industry: Chromalloy Castings (63%), mostly cobalt.
• Fine particles (PM2.5) average 7.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 384,437 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 33543

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

Based on 7 census tracts · compiled September 10, 2026 · how each grade works and its sources

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