EPA UCMR 5 Data · Tennessee

PFAS Drinking-Water Monitoring Results in Tennessee

This page summarizes EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR 5, 2023–2025) drinking-water monitoring records linked to ZIP codes in Tennessee, as processed for the PFAS Estimator national dataset. Data updated: July 2026.

33.1% of Tennessee ZIP codes in this dataset (269 total)
had at least one regulated PFAS compound detected at or above its applicable EPA threshold (89 of 269 ZIP codes). Of those, 44 (49.4%) had more than one compound at or above threshold. This dataset includes only ZIP codes with at least one recorded PFAS detection; ZIP codes where all compounds returned non-detect are not represented.

Compounds detected in Tennessee

Detection prevalence, exceedance, and concentration by compound, Tennessee ZIP codes in the EPA UCMR 5 analytic dataset.
Compound Applicable threshold ZIP codes detected At/above threshold Mean detected Maximum detected
PFOA0.004 µg/L (MCL)54 (20.1% of state)54 (100.0%) — all detections at/above limit by construction0.011 µg/L0.035 µg/L
PFOS0.004 µg/L (MCL)72 (26.8% of state)72 (100.0%) — all detections at/above limit by construction0.0102 µg/L0.027 µg/L
PFHxS0.01 µg/L (MCL)23 (8.6% of state)7 (30.4% of detected)0.0083 µg/L0.0163 µg/L
PFBS2.0 µg/L (HI reference)163 (60.6% of state)not calculated¹0.0108 µg/L0.049 µg/L
Lithium7.36 µg/L (reference, not a regulatory limit)37 (13.8% of state)37 (100.0%) at/above reference70.5568 µg/L106.0 µg/L
PFPeA— (no federal limit)79 (29.4% of state)0.0082 µg/L0.03 µg/L
PFBA— (no federal limit)162 (60.2% of state)0.0089 µg/L0.022 µg/L
PFHpA— (no federal limit)39 (14.5% of state)0.0049 µg/L0.014 µg/L
6:2 FTS— (no federal limit)14 (5.2% of state)0.0135 µg/L0.02 µg/L
PFDA— (no federal limit)1 (0.4% of state)0.003 µg/L0.003 µg/L

ZIP codes in this dataset (Tennessee)

269 ZIP codes with at least one recorded PFAS detection. Click a ZIP code to view its full compound-level results.

Per-ZIP-code detection summary for Tennessee
ZIP code Compounds detected At/above threshold
370124Yes (1)
370145Yes (1)
370151No
370183No
370196Yes (2)
370203No
370231No
370263No
370271No
370281No
370301No
370321No
370346Yes (2)
370373No
370465Yes (1)
370476Yes (2)
370501No
370511No
370571No
370581No
370603No
370611No
370633No
370641No
370671No
370691No
370731No
370791No
370854Yes (1)
370864Yes (1)
370874Yes (1)
370904Yes (1)
370916Yes (2)
371102No
371164Yes (1)
371184Yes (1)
371274Yes (1)
371284Yes (1)
371294Yes (1)
371304Yes (1)
371355Yes (1)
371421No
371446Yes (2)
371451No
371461No
371493No
371501No
371511No
371533No
371606Yes (2)
371674Yes (1)
371721No
371745Yes (2)
371781No
371794Yes (1)
371804Yes (2)
371811No
371835Yes (2)
371844Yes (1)
371881No
373021No
373031No
373087Yes (2)
373103No
373113No
373123No
373151No
373222No
373236Yes (2)
373306Yes (2)
373321No
373367Yes (2)
373411No
373426Yes (2)
373437Yes (2)
373472No
373512No
373526Yes (2)
373533No
373557Yes (2)
373576Yes (2)
373606Yes (2)
373637Yes (2)
373666Yes (2)
373701No
373711No
373772No
373792No
373802No
373811No
373886Yes (2)
374012No
374022No
374032No
374042No
374052No
374062No
374072No
374082No
374092No
374102No
374112No
374122No
374153No
374162No
374192No
374212No
374222No
374502No
376152Yes (1)
376161No
376172Yes (1)
376401No
376413Yes (1)
376423Yes (1)
376505Yes (2)
376562Yes (1)
376593Yes (1)
376602Yes (1)
376632Yes (1)
376642Yes (1)
376652Yes (1)
376801No
376811No
376831No
377051No
377082No
377091No
377101No
377112No
377141No
377161No
377211No
377221No
377255Yes (1)
377261No
377331No
377432No
377451No
377481No
377541No
377571No
377603Yes (1)
377632No
377643Yes (1)
377691No
377701No
377714Yes (1)
377723Yes (1)
377742No
377791No
378061No
378072No
378091No
378101No
378113No
378131No
378142No
378151No
378161No
378181No
378203Yes (1)
378261No
378281No
378301No
378401No
378451No
378461No
378521No
378541No
378573Yes (1)
378601No
378612No
378621No
378651No
378713Yes (1)
378721No
378741No
378761No
378772No
378801No
378871No
378881No
378903Yes (1)
379022No
379091No
379121No
379141No
379151No
379161No
379171No
379181No
379191No
379201No
379212No
379221No
379231No
379241No
379311No
379341No
380012No
380062No
380081No
380122No
380242No
380342No
380441No
380502No
380521No
380531No
380611No
380702No
380801No
383013Yes (2)
383023Yes (2)
383055Yes (2)
383101No
383114Yes (1)
383133Yes (2)
383151No
383207Yes (2)
383267Yes (2)
383271No
383294Yes (1)
383321No
383336Yes (2)
383341No
383372No
383391No
383401No
383415Yes (2)
383433Yes (2)
383553Yes (2)
383578Yes (2)
383591No
383611No
383623Yes (2)
383635Yes (2)
383671No
383684Yes (1)
383714Yes (1)
383723Yes (1)
383744Yes (1)
383805Yes (2)
383822Yes (1)
383931No
384016Yes (2)
384025Yes (2)
384254Yes (2)
384496Yes (2)
384516Yes (2)
384725Yes (2)
384731Yes (1)
384785Yes (2)
385411No
385471No
385491No
385511No
385521No
385591No
385601No
385631No
385671No
385751No
385771No
385791No
385832Yes (1)
385871No
385881No

Methodology & limitations

Results are based on EPA UCMR 5 monitoring data (2023–2025), linked to ZIP codes via Public Water System Identifier. Non-detections are not present in this analytic dataset. For each compound and ZIP code, the highest observed concentration across the monitoring period is retained; this characterizes the upper bound of observed drinking-water concentrations, not a long-term average or an individual exposure estimate. A single water system may serve multiple ZIP codes, so the same monitoring record can appear for more than one ZIP in this table. ZIP-code assignment reflects water-system service area geography and does not establish individual household exposure. Private wells are not represented unless served by a monitored public water system. PFOA and PFOS are reported by detection prevalence because the UCMR 5 reporting limit equals their federal MCL. A full PFBS Hazard Index is not calculated because co-located, same-event multi-compound readings are not retained in this dataset. Lithium has no federal Maximum Contaminant Level; 7.36 µg/L is an evidence-based reference concentration from a prospective cohort study, not a regulatory threshold.

Related links

PFAS Estimator homepage & national ZIP lookup
Full national methodology, limitations, and dataset documentation
All states & territories index

Data from the EPA Unregulated Contaminant Monitoring Rule (UCMR 5), 2023–2025. Detection does not indicate a health risk. Not medical advice. Data updated: July 2026. · EPA Source