No PFAS were detected in any of the 4 samples EPA's program collected.
Pinellas County Utilities is a public water system drawing on surface water, based in Largo, Florida, serving about 506,353 people, including Saint Petersburg, Bay Pines, Clearwater, Largo, Seminole, Indian Rocks Beach. Under EPA's Fifth Unregulated Contaminant Monitoring Rule it was tested for 29 PFAS and lithium 4 times across 1 sampling point between Jul 2023 and Apr 2024.
None of the 29 PFAS were found at or above EPA's minimum reporting levels (2 to 20 ppt depending on the compound).
Not detected: 8:2 FTS, PFHxS, PFNA, PFOS, PFOA, PFDA, NMeFOSAA, 11Cl-PF3OUdS, ADONA, HFPO-DA, PFBA, PFMBA, 4:2 FTS, PFDoA, PFMPA, PFPeA, PFHpS, PFPeS, NFDHA, PFUnA, PFHxA, PFHpA, PFBS, PFEESA, 6:2 FTS, NEtFOSAA, PFTrDA, PFTA, 9Cl-PF3ONS.
Lithium, tested in the same program: not detected.
In April 2024 EPA set enforceable limits of 4 ppt for PFOA and PFOS, 10 ppt each for PFHxS, PFNA and GenX, and a hazard index of 1 for mixtures. Utilities were given until 2029 to comply. In May 2026 EPA proposed keeping only the PFOA and PFOS limits and moving that deadline to 2031. Until that proposal is final, the 2024 limits stand.
Compliance is judged on a running annual average at each entry point, so we show the average at this system's worst sampling point next to its single highest result. UCMR 5 results do not by themselves put a utility in or out of compliance.
No PFAS action is needed on these results. If your water tastes or smells of chlorine, a whole-house city water filter is the usual fix.
All 409 tested systems in Florida
33706 33708 33709 33715 33744 33756 33760 33761 33762 33763 33770 33771 33772 33773 33774 33776 33777 33778 33785 34677 34681 34683 34685 34688 34698
As reported by the utility to EPA. Neighbouring ZIPs are often split between systems; your water bill names yours.
Well & Tap. "PFAS in Pinellas County Utilities water: EPA UCMR 5 results." Data: U.S. EPA Fifth Unregulated Contaminant Monitoring Rule, final release August 2026, PWSID FL6521405. https://wellandtap.com/pfas/florida/pinellas-county-utilities/
Source: U.S. EPA, UCMR 5 occurrence data, final release August 2026 (PWSID FL6521405). Population: EPA SDWIS. Averages count results below the reporting level as zero, the same convention EPA uses for running annual averages. Full method.
