Tap Water Results

Tennessee PFAS results from EPA's final data

Report published Nov 14, 2026 · EPA UCMR 5 final data file of Oct 15, 2026 (samples collected 2023–2025) · Method · National results →

17 Tennessee water systems serving 344,152 people had PFAS above a 2024 federal limit in EPA's final round of nationwide PFAS testing: 6% of the 275 Tennessee systems tested, compared with 11% nationally.

275
systems tested (serving 7.7 million people)
86
had at least one PFAS detected
17
had an average above a federal limit
344,152
people served by those systems

Highest PFOA or PFOS averages in Tennessee

  1. Savannah Valley Utility District East Ridge · PFOA
    32 ppt
  2. Fort Campbell Water System Fort Campbell North · PFOS
    24.8 ppt
  3. Trenton Water System Trenton · PFOS
    24 ppt
  4. First Utility District of Hardin County Counce · PFOS
    16.2 ppt
  5. Camden Water Dept Camden · PFOS
    16 ppt
  6. Jackson Water System Jackson · PFOS
    15.2 ppt
  7. North U.dep. of Decatur/Benton County Water System Parsons · PFOS
    15.2 ppt
  8. Clifton Water Dept Clifton · PFOS
    14.3 ppt
  9. Scotts Hill Water System Scotts Hill · PFOS
    12.4 ppt
  10. Savannah Utility Department Savannah · PFOS
    11.3 ppt
  11. Parsons Water Department Parsons · PFOS
    10.8 ppt
  12. Wartrace Water System Wartrace · PFOA
    8.97 ppt
  13. Hillsville Utility District Pelham · PFOA
    8.72 ppt
  14. Tullahoma Utilities Authority Tullahoma · PFOA
    8.63 ppt
  15. Erwin Utilities Authority Erwin · PFOS
    6.6 ppt
The 15 Tennessee systems with the highest PFOA or PFOS entry-point average (whichever is higher) in EPA's 2023–2025 testing, in parts per trillion.
Chart data as a table
Systemppt
Savannah Valley Utility District · East Ridge · PFOA32
Fort Campbell Water System · Fort Campbell North · PFOS24.8
Trenton Water System · Trenton · PFOS24
First Utility District of Hardin County · Counce · PFOS16.2
Camden Water Dept · Camden · PFOS16
Jackson Water System · Jackson · PFOS15.2
North U.dep. of Decatur/Benton County Water System · Parsons · PFOS15.2
Clifton Water Dept · Clifton · PFOS14.3
Scotts Hill Water System · Scotts Hill · PFOS12.4
Savannah Utility Department · Savannah · PFOS11.3
Parsons Water Department · Parsons · PFOS10.8
Wartrace Water System · Wartrace · PFOA8.97
Hillsville Utility District · Pelham · PFOA8.72
Tullahoma Utilities Authority · Tullahoma · PFOA8.63
Erwin Utilities Authority · Erwin · PFOS6.6

Largest systems above a limit

#SystemPeople servedAbove the limit forPFOA avgPFOS avg
1Jackson Water System
Jackson
Above: PFOS
91,111PFOS–15.2 ppt
2Fort Campbell Water System
Fort Campbell North
Above: PFOA, PFOS, PFHxS, Hazard Index
43,270PFOA, PFOS, PFHxS, Hazard Index5.77 ppt24.8 ppt
3Shelbyville Water System
Shelbyville
Above: PFOA, PFOS
36,813PFOA, PFOS5.83 ppt4.05 ppt
4Tullahoma Utilities Authority
Tullahoma
Above: PFOA
30,958PFOA8.63 ppt3.35 ppt
5Savannah Valley Utility District
East Ridge
Above: PFOA, PFOS
30,571PFOA, PFOS32 ppt16.5 ppt
6Manchester Water Department
Manchester
Above: PFOA
24,975PFOA4.42 ppt1.65 ppt
7Savannah Utility Department
Savannah
Above: PFOS
19,495PFOS–11.3 ppt
8Erwin Utilities Authority
Erwin
Above: PFOS
12,478PFOS2.05 ppt6.6 ppt
9Hillsville Utility District
Pelham
Above: PFOA, PFOS
11,325PFOA, PFOS8.72 ppt5.88 ppt
10Camden Water Dept
Camden
Above: PFOA, PFOS
10,013PFOA, PFOS7.63 ppt16 ppt

All 17 Tennessee systems above a limit

Every Tennessee community water system whose UCMR 5 results averaged above a 2024 federal PFAS limit, largest first. Systems that were not tested are not listed: not tested is not the same as not detected.

Full list: 17 systems, largest first
SystemPeople servedAbove the limit for
Jackson Water System
Jackson
Above: PFOS
91,111PFOS
Fort Campbell Water System
Fort Campbell North
Above: PFOA, PFOS, PFHxS, Hazard Index
43,270PFOA, PFOS, PFHxS, Hazard Index
Shelbyville Water System
Shelbyville
Above: PFOA, PFOS
36,813PFOA, PFOS
Tullahoma Utilities Authority
Tullahoma
Above: PFOA
30,958PFOA
Savannah Valley Utility District
East Ridge
Above: PFOA, PFOS
30,571PFOA, PFOS
Manchester Water Department
Manchester
Above: PFOA
24,975PFOA
Savannah Utility Department
Savannah
Above: PFOS
19,495PFOS
Erwin Utilities Authority
Erwin
Above: PFOS
12,478PFOS
Hillsville Utility District
Pelham
Above: PFOA, PFOS
11,325PFOA, PFOS
Camden Water Dept
Camden
Above: PFOA, PFOS
10,013PFOA, PFOS
First Utility District of Hardin County
Counce
Above: PFOA, PFOS
7,602PFOA, PFOS
Trenton Water System
Trenton
Above: PFOS
5,155PFOS
Scotts Hill Water System
Scotts Hill
Above: PFOS
4,579PFOS
Parsons Water Department
Parsons
Above: PFOA, PFOS
4,303PFOA, PFOS
Clifton Water Dept
Clifton
Above: PFOA, PFOS
4,110PFOA, PFOS
North U.dep. of Decatur/Benton County Water System
Parsons
Above: PFOA, PFOS
3,818PFOA, PFOS
Wartrace Water System
Wartrace
Above: PFOA, PFOS
3,576PFOA, PFOS

The same list, with PFOA and PFOS averages, is in the data download.

Which limits were exceeded

PFASFederal limitSystems above itPeople served
PFOA
211,334 people
4 ppt12211,334
PFOS
288,219 people
4 ppt15288,219
PFHxS
43,270 people
10 ppt143,270
PFNA10 ppt00
GenX (HFPO-DA)10 ppt00
Hazard Index
43,270 people
1143,270

"–" in the table above means not detected. A system can be above more than one limit. EPA proposed in May 2026 to rescind the PFHxS, PFNA, GenX and Hazard Index limits. That proposal is not final.

Data and how to cite it

Suggested citation:

Tap Water Results, "Tennessee PFAS results from EPA's final UCMR 5 data" (published Nov 14, 2026, EPA data file of Oct 15, 2026). https://tapwaterresults.com/pfas/tennessee/

You're welcome to quote and republish these figures with a link back. Questions from reporters: see contact.

Method

For each system we average each entry point's UCMR 5 results (non-detects count as zero, complete sets of samples only) and compare the highest entry-point average with the 2024 federal limit, using EPA's rounding. This is how EPA compares UCMR 5 results to the limits in its own data summary, and our national counts match EPA's published table within 2% (how we check). Results are monitoring data from 2023–2025, not compliance determinations, and treatment installed since then is not reflected. Full method.

Questions

How many Tennessee water systems have PFAS above the limit?

17 of the 275 Tennessee community water systems EPA tested in 2023–2025 (6%) had at least one entry-point average above a 2024 federal PFAS limit. They serve 344,152 people. Nationally the share is 11%.

Are these systems violating the law?

Not yet. Systems have until 2029 to meet the 2024 limits, and EPA has proposed moving the PFOA and PFOS deadline to 2031 and rescinding the other limits. EPA's UCMR 5 results are monitoring data and do not determine compliance.

Which systems were tested?

EPA's UCMR 5 tested every community water system serving more than 3,300 people and a representative sample of smaller ones. Systems that were not tested have no federal result, which is not the same as having no PFAS.

All Tennessee water systems → · National results → · PFAS results for every state →

Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.