Is there PFAS in Tullahoma Utilities Authority water?

Yes. EPA's final UCMR 5 results show Tullahoma Utilities Authority averaged 8.6 ppt of PFOA at its worst sampling point, 2.1 times the EPA limit of 4 ppt.

Tullahoma Utilities Authority is a public water system drawing on surface water, based in Tullahoma, Tennessee, serving about 30,958 people, including Shelbyville, Lynchburg, Normandy, Tullahoma. Under EPA's Fifth Unregulated Contaminant Monitoring Rule it was tested for 29 PFAS and lithium 4 times across 1 sampling point between Dec 2024 and Sep 2025.

Every PFAS detected

Not detected: 9Cl-PF3ONS, PFHxS, PFNA, PFDA, PFDoA, 11Cl-PF3OUdS, PFTA, PFUnA, ADONA, 6:2 FTS, 4:2 FTS, 8:2 FTS, PFMPA, PFMBA, PFEESA, NFDHA, PFPeS, PFHpS, HFPO-DA, NEtFOSAA, PFTrDA, NMeFOSAA.

Lithium, tested in the same program: not detected.

What the EPA limits mean here

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.

What you can do at home

Two routes work for PFAS. For drinking and cooking water only, a reverse osmosis system certified to NSF/ANSI 58 with a PFOA/PFOS reduction claim is the cheapest proven option. To treat every tap and shower, a whole-house carbon system with enough contact time works, but check that the maker has PFAS test data, not just a marketing claim. See the best filters for PFAS and how PFAS removal works.

Other systems in Tennessee

• Savannah Valley U. D. above an EPA limit
• Brentwood Water Deptartment none detected
• Mallory Valley Utility District none detected
• Elizabethton Water Dept none detected
• Warren County Utility District 1 PFAS detected
• Crossville Water Dept none detected

All 277 tested systems in Tennessee

ZIP codes served

37160 37352 37360 37388

As reported by the utility to EPA. Neighbouring ZIPs are often split between systems; your water bill names yours.

Cite this page

Well & Tap. "PFAS in Tullahoma Utilities Authority water: EPA UCMR 5 results." Data: U.S. EPA Fifth Unregulated Contaminant Monitoring Rule, final release August 2026, PWSID TN0000715. https://wellandtap.com/pfas/tennessee/tullahoma-utilities-authority/

About this data

Source: U.S. EPA, UCMR 5 occurrence data, final release August 2026 (PWSID TN0000715). Population: EPA SDWIS. Averages count results below the reporting level as zero, the same convention EPA uses for running annual averages. Full method.