No PFAS were detected in any of the 8 samples EPA's program collected.
Nashville Water Dept is a public water system drawing on surface water, Tennessee, serving about 778,153 people, including Antioch, Ashland City, Brentwood, Goodlettsville, Hermitage, Joelton. Under EPA's Fifth Unregulated Contaminant Monitoring Rule it was tested for 29 PFAS and lithium 8 times across 2 sampling points between Feb 2023 and Nov 2023.
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: PFUnA, PFHxA, PFDoA, PFDA, NMeFOSAA, 11Cl-PF3OUdS, PFHxS, PFOA, PFHpA, PFBS, NEtFOSAA, PFTrDA, PFTA, PFOS, PFMBA, PFHpS, PFPeS, PFNA, 9Cl-PF3ONS, PFEESA, NFDHA, PFPeA, PFMPA, 8:2 FTS, 4:2 FTS, 6:2 FTS, PFBA, HFPO-DA, ADONA.
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 277 tested systems in Tennessee
37013 37015 37024 37027 37070 37072 37076 37080 37086 37115 37122 37135 37138 37189 37201 37202 37203 37204 37205 37206 37207 37208 37209 37210 37211 37212 37213 37214 37215 37216 37217 37218 37219 37220 37221 37228 37240 37243
As reported by the utility to EPA. Neighbouring ZIPs are often split between systems; your water bill names yours.
Well & Tap. "PFAS in Nashville Water Dept water: EPA UCMR 5 results." Data: U.S. EPA Fifth Unregulated Contaminant Monitoring Rule, final release August 2026, PWSID TN0000494. https://wellandtap.com/pfas/tennessee/nashville-water-dept/
Source: U.S. EPA, UCMR 5 occurrence data, final release August 2026 (PWSID TN0000494). Population: EPA SDWIS. Averages count results below the reporting level as zero, the same convention EPA uses for running annual averages. Full method.
