Pasco County, FL

ZIP 33540

In ZIP 33540, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Zephyrhills City Of has 1 contaminant at or over an EPA legal limit; 12 contaminants are above health goals, led by pfos at 7.4× California’s Public Health Goal.
• Nearest Superfund site: Arkla Terra Property, 6.9 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: International Sterilization Laboratory (69%), mostly ethylene oxide.
• Fine particles (PM2.5) average 7.2 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 33540

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

Based on 8 census tracts · compiled October 25, 2026 · how each grade works and its sources

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