- PWSID
- AL0000314
- State
- Alabama
- System type
- community water system (CWS)
- Population served
- 13,449
- City
- Tuscumbia
- Counties
- Colbert County
- Primary source water
- surface water
- UCMR 5 sampling
- 2023-07-25 to 2024-05-14 · 7 entry point(s) · water types: GU;GW;SW
- Service-area boundary
- EPA-modeled (Random Forest) — approximate: estimated by EPA with a statistical model, not a surveyed service area
PFOS ≥ 3 × its limit highest single result
PFOS ≥ 3 × its limit worst entry-point average
Open on the Alabama map · All Alabama systems · All results
These are monitoring results collected under EPA's Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) at entry points, where treated water enters the distribution system; they are not tap-water samples. They are not compliance determinations: compliance with EPA's 2024 PFAS limits is judged on running annual averages of compliance monitoring, required from 2029, so a single UCMR 5 result at or above a limit is not a violation. “< MRL” means the compound was not quantified at EPA's minimum reporting level; it does not mean zero.
Water purchased from
- Hawk Pride Mt Water System (AL0000316)
Seller's highest results: PFOA 5.5 ppt · PFOS 9.2 ppt · HI 0.003 · detected: PFBA;PFBS;PFHxA;PFOA;PFOS;PFPeA - Muscle Shoals Utility Board (AL0000321)
Seller's highest results: PFOA 9.6 ppt · PFOS 16.8 ppt · HI 0.003 · detected: PFBA;PFBS;PFHxA;PFOA;PFOS - City Of Iuka (MS0710006)
Seller's highest results: PFOA <MRL · PFOS <MRL · HI 0 - Cherokee Water & Gas Department (AL0000311)
Seller not monitored under UCMR 5. - Sheffield Utilities, City Of Sheffield (AL0000327)
Seller's highest results: PFOA 13 ppt · PFOS 20 ppt · HI 0.002 · detected: PFBA;PFBS;PFHxA;PFOA;PFOS - Tuscumbia Water Works (AL0000331)
Seller's highest results: PFOA 5 ppt · PFOS 6.3 ppt · HI 0.344 · detected: PFBA;PFBS;PFHxA;PFHxS;PFOA;PFOS;PFPeA - West Lawrence Water Coop (AL0000801)
Seller's highest results: PFOA <MRL · PFOS <MRL · HI 0.004 · detected: PFBA;PFBS
Seller results are the seller's own entry-point samples, not measurements of this system's water. This system's own samples (below) may reflect purchased water, its own sources, or both.
Compared with EPA's 2024 values
| Highest single result | Worst entry-point average* | Limit | |
|---|---|---|---|
| PFOA (ppt) | 19.8 | 11.38 | 4 |
| PFOS (ppt) | 29.5 | 18.25 | 4 |
| Hazard Index | 0.383 | 0.161 | 1.0† |
“<MRL” = every result for the compound was below its reporting limit. * Mean of all samples at each entry point with non-detects = 0 (EPA compliance convention; the Hazard Index also uses non-detects = 0); a screening comparison, not a formal running annual average. † Rescission proposed May 2026. PFOA/PFOS MCL 4 ppt (2024 NPDWR, in effect). PFHxS, PFNA, HFPO-DA (10 ppt each) and the Hazard Index (1.0) are 2024 NPDWR values; EPA proposed rescinding them on 18 May 2026 (comment period closed 20 Jul 2026).
No Alabama PFAS drinking-water standard in effect or proposed as of 2026-10-17: No state PFAS drinking-water standard; follows federal NPDWR (BCLP state survey, Jan 2026).
Sampling history
Sampled 2023-07-25 to 2024-05-14 · 7 entry point(s) · water types: GU;GW;SW · 31 sampling visits. PFAS in ppt (ng/L).
| Date | Entry point | Event | PFOA | PFOS | HI | Other detections |
|---|---|---|---|---|---|---|
| 2023-07-25 | Cherokee (SW) | SE1 | 9.7 | 19.5 | 0.004 | PFBA 37.7, PFHxA 4.6, PFPeA 3.6 |
| 2023-07-25 | Hawk Pride (GU) | SE1 | 4.9 | 7.3 | 0.304 | PFBA 5.6, PFHxA 6.6 |
| 2023-07-25 | Iuka (GU) | SE1 | 9.3 | 17 | 0.004 | PFBA 11.7, PFHxA 4.2, PFPeA 3 |
| 2023-07-25 | Muscle Shoals (SW) | SE1 | 7 | 14.3 | 0.004 | PFBA 12.7, PFHxA 3.7, PFPeA 3 |
| 2023-07-25 | Tuscumbia (GU) | SE1 | <4 | 5.9 | 0.003 | PFBA 7.1, PFHxA 3.3, PFPeA 3.2 |
| 2023-07-25 | Water TP (SW) | SE1 | 7.3 | 14.9 | 0.004 | PFBA 15, PFHxA 3.7, PFPeA 3.1 |
| 2023-07-25 | West Lawrence (GW) | SE1 | <4 | <4 | 0 | none |
| 2023-10-11 | Cherokee (SW) | SE2 | 8.1 | 13.3 | 0.002 | PFBA 12.3, PFHxA 4.1, PFPeA 3.1 |
| 2023-10-11 | Hawk Pride (GU) | SE2 | 7.6 | 10.2 | 0.334 | PFBA 8.1, PFHxA 12, PFPeA 4.4 |
| 2023-10-11 | Iuka (GU) | SE2 | <4 | <4 | 0 | none |
| 2023-10-11 | Muscle Shoals (SW) | SE2 | 8.4 | 13.5 | 0.002 | PFBA 13.5, PFHxA 3.8, PFPeA 3.1 |
| 2023-10-11 | Tuscumbia (GU) | SE2 | <4 | 6.8 | 0.003 | PFBA 5.3 |
| 2023-10-11 | Water TP (SW) | SE2 | 8.2 | 13.7 | 0.002 | PFBA 13.8, PFHxA 3.9, PFPeA 3.3 |
| 2024-01-23 | Cherokee (SW) | SE3 | 8.4 | 13 | 0.003 | PFBA 8.5, PFHxA 3.7 |
| 2024-01-23 | Hawk Pride (GU) | SE3 | 7.8 | 9.3 | 0.004 | PFBA 8.6, PFHxA 11.6, PFPeA 5.1 |
| 2024-01-23 | Iuka (GU) | SE3 | <4 | <4 | 0 | none |
| 2024-01-23 | Muscle Shoals (SW) | SE3 | 10.3 | 15.7 | 0.003 | PFBA 7.6, PFHxA 4.2, PFPeA 3 |
| 2024-01-23 | Tuscumbia (GU) | SE3 | <4 | 7.5 | 0.303 | PFBA 5.5, PFHxA 3.5, PFPeA 3.7 |
| 2024-01-23 | Water TP (SW) | SE3 | 8.5 | 12.8 | 0.002 | PFBA 7.4, PFHxA 3.6 |
| 2024-01-23 | West Lawrence (GW) | SE2 | <4 | <4 | 0 | none |
| 2024-04-09 | Cherokee (SW) | SE4 | n/a | n/a | n/a | none |
| 2024-04-09 | Hawk Pride (GU) | SE4 | n/a | n/a | n/a | none |
| 2024-04-09 | Iuka (GU) | SE4 | <4 | <4 | 0 | none |
| 2024-04-09 | Muscle Shoals (SW) | SE4 | n/a | n/a | n/a | none |
| 2024-04-09 | Tuscumbia (GU) | SE4 | n/a | n/a | n/a | none |
| 2024-04-09 | Water TP (SW) | SE4 | n/a | n/a | n/a | none |
| 2024-05-14 | Cherokee (SW) | SE4 | 17 | 26.5 | 0.363 | PFBA 10.8, PFHpA 4, PFHxA 5.3, PFPeA 3 |
| 2024-05-14 | Hawk Pride (GU) | SE4 | <4 | 6.1 | 0.003 | PFHxA 3.7 |
| 2024-05-14 | Muscle Shoals (SW) | SE4 | 19.8 | 29.5 | 0.383 | PFBA 11, PFHpA 4.3, PFHxA 5.7, PFPeA 3 |
| 2024-05-14 | Tuscumbia (GU) | SE4 | <4 | 6.1 | 0.003 | none |
| 2024-05-14 | Water TP (SW) | SE4 | 17.5 | 27.9 | 0.343 | PFBA 9.8, PFHpA 3.9, PFHxA 5.3, PFPeA 3 |
“<4” = not detected at the reporting limit shown; “n/a” = not analyzed in that sample. Highlighted = at or above the 4 ppt MCL. HI computed per sample with non-detects as 0. Other detections lists every other quantified compound (lithium in µg/L).
All results by entry point
780 results. Each column is one sampling visit (date and UCMR 5 sample event). A number is a measured concentration; “< 4” = below the minimum reporting level shown; “–” = not analyzed in that visit. PFAS in ppt (ng/L); lithium in µg/L.
Cherokee facility 08159 · sample point EP006 · surface water
| Compound | MRL | 2023-07-25 SE1 | 2023-10-11 SE2 | 2024-01-23 SE3 | 2024-04-09 SE4 | 2024-05-14 SE4 |
|---|---|---|---|---|---|---|
| PFBA | 5 ppt | 37.7 | 12.3 | 8.5 | – | 10.8 |
| PFBS | 3 ppt | 8.4 | 3.7 | 5 | – | 6 |
| PFHpA | 3 ppt | < 3 | < 3 | < 3 | – | 4 |
| PFHxA | 3 ppt | 4.6 | 4.1 | 3.7 | – | 5.3 |
| PFHxS | 3 ppt | < 3 | < 3 | < 3 | – | 3.6 |
| PFOA | 4 ppt | 9.7 | 8.1 | 8.4 | – | 17 |
| PFOS | 4 ppt | 19.5 | 13.3 | 13 | – | 26.5 |
| PFPeA | 3 ppt | 3.6 | 3.1 | < 3 | – | 3 |
| 11Cl-PF3OUdS | 5 ppt | < 5 | < 5 | < 5 | – | < 5 |
| 4:2 FTS | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| 6:2 FTS | 5 ppt | < 5 | < 5 | < 5 | – | < 5 |
| 8:2 FTS | 5 ppt | < 5 | < 5 | < 5 | – | < 5 |
| 9Cl-PF3ONS | 2 ppt | < 2 | < 2 | < 2 | – | < 2 |
| ADONA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| HFPO-DA | 5 ppt | < 5 | < 5 | < 5 | – | < 5 |
| NEtFOSAA | 5 ppt | < 5 | < 5 | < 5 | < 5 | – |
| NFDHA | 20 ppt | < 20 | < 20 | < 20 | – | < 20 |
| NMeFOSAA | 6 ppt | < 6 | < 6 | < 6 | < 6 | – |
| PFDA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFDoA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFEESA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFHpS | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFMBA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFMPA | 4 ppt | < 4 | < 4 | < 4 | – | < 4 |
| PFNA | 4 ppt | < 4 | < 4 | < 4 | – | < 4 |
| PFPeS | 4 ppt | < 4 | < 4 | < 4 | – | < 4 |
| PFTA | 8 ppt | < 8 | < 8 | < 8 | < 8 | – |
| PFTrDA | 7 ppt | < 7 | < 7 | < 7 | < 7 | – |
| PFUnA | 2 ppt | < 2 | < 2 | < 2 | – | < 2 |
| lithium | 9 µg/L | < 9 | < 9 | < 9 | < 9 | – |
Hawk Pride facility 08160 · sample point EP007 · groundwater under the influence of surface water
| Compound | MRL | 2023-07-25 SE1 | 2023-10-11 SE2 | 2024-01-23 SE3 | 2024-04-09 SE4 | 2024-05-14 SE4 |
|---|---|---|---|---|---|---|
| PFBA | 5 ppt | 5.6 | 8.1 | 8.6 | – | < 5 |
| PFBS | 3 ppt | 7.4 | 8.5 | 8 | – | 5.6 |
| PFHxA | 3 ppt | 6.6 | 12 | 11.6 | – | 3.7 |
| PFHxS | 3 ppt | 3 | 3.3 | < 3 | – | < 3 |
| PFOA | 4 ppt | 4.9 | 7.6 | 7.8 | – | < 4 |
| PFOS | 4 ppt | 7.3 | 10.2 | 9.3 | – | 6.1 |
| PFPeA | 3 ppt | < 3 | 4.4 | 5.1 | – | < 3 |
| 11Cl-PF3OUdS | 5 ppt | < 5 | < 5 | < 5 | – | < 5 |
| 4:2 FTS | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| 6:2 FTS | 5 ppt | < 5 | < 5 | < 5 | – | < 5 |
| 8:2 FTS | 5 ppt | < 5 | < 5 | < 5 | – | < 5 |
| 9Cl-PF3ONS | 2 ppt | < 2 | < 2 | < 2 | – | < 2 |
| ADONA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| HFPO-DA | 5 ppt | < 5 | < 5 | < 5 | – | < 5 |
| NEtFOSAA | 5 ppt | < 5 | < 5 | < 5 | < 5 | – |
| NFDHA | 20 ppt | < 20 | < 20 | < 20 | – | < 20 |
| NMeFOSAA | 6 ppt | < 6 | < 6 | < 6 | < 6 | – |
| PFDA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFDoA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFEESA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFHpA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFHpS | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFMBA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFMPA | 4 ppt | < 4 | < 4 | < 4 | – | < 4 |
| PFNA | 4 ppt | < 4 | < 4 | < 4 | – | < 4 |
| PFPeS | 4 ppt | < 4 | < 4 | < 4 | – | < 4 |
| PFTA | 8 ppt | < 8 | < 8 | < 8 | < 8 | – |
| PFTrDA | 7 ppt | < 7 | < 7 | < 7 | < 7 | – |
| PFUnA | 2 ppt | < 2 | < 2 | < 2 | – | < 2 |
| lithium | 9 µg/L | < 9 | < 9 | < 9 | < 9 | – |
Iuka facility 08156 · sample point EP003 · groundwater under the influence of surface water
| Compound | MRL | 2023-07-25 SE1 | 2023-10-11 SE2 | 2024-01-23 SE3 | 2024-04-09 SE4 |
|---|---|---|---|---|---|
| PFBA | 5 ppt | 11.7 | < 5 | < 5 | < 5 |
| PFBS | 3 ppt | 8.2 | < 3 | < 3 | < 3 |
| PFHxA | 3 ppt | 4.2 | < 3 | < 3 | < 3 |
| PFOA | 4 ppt | 9.3 | < 4 | < 4 | < 4 |
| PFOS | 4 ppt | 17 | < 4 | < 4 | < 4 |
| PFPeA | 3 ppt | 3 | < 3 | < 3 | < 3 |
| 11Cl-PF3OUdS | 5 ppt | < 5 | < 5 | < 5 | < 5 |
| 4:2 FTS | 3 ppt | < 3 | < 3 | < 3 | < 3 |
| 6:2 FTS | 5 ppt | < 5 | < 5 | < 5 | < 5 |
| 8:2 FTS | 5 ppt | < 5 | < 5 | < 5 | < 5 |
| 9Cl-PF3ONS | 2 ppt | < 2 | < 2 | < 2 | < 2 |
| ADONA | 3 ppt | < 3 | < 3 | < 3 | < 3 |
| HFPO-DA | 5 ppt | < 5 | < 5 | < 5 | < 5 |
| NEtFOSAA | 5 ppt | < 5 | < 5 | < 5 | < 5 |
| NFDHA | 20 ppt | < 20 | < 20 | < 20 | < 20 |
| NMeFOSAA | 6 ppt | < 6 | < 6 | < 6 | < 6 |
| PFDA | 3 ppt | < 3 | < 3 | < 3 | < 3 |
| PFDoA | 3 ppt | < 3 | < 3 | < 3 | < 3 |
| PFEESA | 3 ppt | < 3 | < 3 | < 3 | < 3 |
| PFHpA | 3 ppt | < 3 | < 3 | < 3 | < 3 |
| PFHpS | 3 ppt | < 3 | < 3 | < 3 | < 3 |
| PFHxS | 3 ppt | < 3 | < 3 | < 3 | < 3 |
| PFMBA | 3 ppt | < 3 | < 3 | < 3 | < 3 |
| PFMPA | 4 ppt | < 4 | < 4 | < 4 | < 4 |
| PFNA | 4 ppt | < 4 | < 4 | < 4 | < 4 |
| PFPeS | 4 ppt | < 4 | < 4 | < 4 | < 4 |
| PFTA | 8 ppt | < 8 | < 8 | < 8 | < 8 |
| PFTrDA | 7 ppt | < 7 | < 7 | < 7 | < 7 |
| PFUnA | 2 ppt | < 2 | < 2 | < 2 | < 2 |
| lithium | 9 µg/L | < 9 | < 9 | < 9 | < 9 |
Muscle Shoals facility 08158 · sample point EP005 · surface water
| Compound | MRL | 2023-07-25 SE1 | 2023-10-11 SE2 | 2024-01-23 SE3 | 2024-04-09 SE4 | 2024-05-14 SE4 |
|---|---|---|---|---|---|---|
| PFBA | 5 ppt | 12.7 | 13.5 | 7.6 | – | 11 |
| PFBS | 3 ppt | 7.7 | 3.6 | 5.2 | – | 5.6 |
| PFHpA | 3 ppt | < 3 | < 3 | < 3 | – | 4.3 |
| PFHxA | 3 ppt | 3.7 | 3.8 | 4.2 | – | 5.7 |
| PFHxS | 3 ppt | < 3 | < 3 | < 3 | – | 3.8 |
| PFOA | 4 ppt | 7 | 8.4 | 10.3 | – | 19.8 |
| PFOS | 4 ppt | 14.3 | 13.5 | 15.7 | – | 29.5 |
| PFPeA | 3 ppt | 3 | 3.1 | 3 | – | 3 |
| 11Cl-PF3OUdS | 5 ppt | < 5 | < 5 | < 5 | – | < 5 |
| 4:2 FTS | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| 6:2 FTS | 5 ppt | < 5 | < 5 | < 5 | – | < 5 |
| 8:2 FTS | 5 ppt | < 5 | < 5 | < 5 | – | < 5 |
| 9Cl-PF3ONS | 2 ppt | < 2 | < 2 | < 2 | – | < 2 |
| ADONA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| HFPO-DA | 5 ppt | < 5 | < 5 | < 5 | – | < 5 |
| NEtFOSAA | 5 ppt | < 5 | < 5 | < 5 | < 5 | – |
| NFDHA | 20 ppt | < 20 | < 20 | < 20 | – | < 20 |
| NMeFOSAA | 6 ppt | < 6 | < 6 | < 6 | < 6 | – |
| PFDA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFDoA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFEESA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFHpS | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFMBA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFMPA | 4 ppt | < 4 | < 4 | < 4 | – | < 4 |
| PFNA | 4 ppt | < 4 | < 4 | < 4 | – | < 4 |
| PFPeS | 4 ppt | < 4 | < 4 | < 4 | – | < 4 |
| PFTA | 8 ppt | < 8 | < 8 | < 8 | < 8 | – |
| PFTrDA | 7 ppt | < 7 | < 7 | < 7 | < 7 | – |
| PFUnA | 2 ppt | < 2 | < 2 | < 2 | – | < 2 |
| lithium | 9 µg/L | < 9 | < 9 | < 9 | < 9 | – |
Tuscumbia facility 08155 · sample point EP002 · groundwater under the influence of surface water
| Compound | MRL | 2023-07-25 SE1 | 2023-10-11 SE2 | 2024-01-23 SE3 | 2024-04-09 SE4 | 2024-05-14 SE4 |
|---|---|---|---|---|---|---|
| PFBA | 5 ppt | 7.1 | 5.3 | 5.5 | – | < 5 |
| PFBS | 3 ppt | 5.6 | 5.9 | 5.8 | – | 5.4 |
| PFHxA | 3 ppt | 3.3 | < 3 | 3.5 | – | < 3 |
| PFHxS | 3 ppt | < 3 | < 3 | 3 | – | < 3 |
| PFOS | 4 ppt | 5.9 | 6.8 | 7.5 | – | 6.1 |
| PFPeA | 3 ppt | 3.2 | < 3 | 3.7 | – | < 3 |
| 11Cl-PF3OUdS | 5 ppt | < 5 | < 5 | < 5 | – | < 5 |
| 4:2 FTS | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| 6:2 FTS | 5 ppt | < 5 | < 5 | < 5 | – | < 5 |
| 8:2 FTS | 5 ppt | < 5 | < 5 | < 5 | – | < 5 |
| 9Cl-PF3ONS | 2 ppt | < 2 | < 2 | < 2 | – | < 2 |
| ADONA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| HFPO-DA | 5 ppt | < 5 | < 5 | < 5 | – | < 5 |
| NEtFOSAA | 5 ppt | < 5 | < 5 | < 5 | < 5 | – |
| NFDHA | 20 ppt | < 20 | < 20 | < 20 | – | < 20 |
| NMeFOSAA | 6 ppt | < 6 | < 6 | < 6 | < 6 | – |
| PFDA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFDoA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFEESA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFHpA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFHpS | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFMBA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFMPA | 4 ppt | < 4 | < 4 | < 4 | – | < 4 |
| PFNA | 4 ppt | < 4 | < 4 | < 4 | – | < 4 |
| PFOA | 4 ppt | < 4 | < 4 | < 4 | – | < 4 |
| PFPeS | 4 ppt | < 4 | < 4 | < 4 | – | < 4 |
| PFTA | 8 ppt | < 8 | < 8 | < 8 | < 8 | – |
| PFTrDA | 7 ppt | < 7 | < 7 | < 7 | < 7 | – |
| PFUnA | 2 ppt | < 2 | < 2 | < 2 | – | < 2 |
| lithium | 9 µg/L | < 9 | < 9 | < 9 | < 9 | – |
Water TP facility 08154 · sample point EP001 · surface water
| Compound | MRL | 2023-07-25 SE1 | 2023-10-11 SE2 | 2024-01-23 SE3 | 2024-04-09 SE4 | 2024-05-14 SE4 |
|---|---|---|---|---|---|---|
| PFBA | 5 ppt | 15 | 13.8 | 7.4 | – | 9.8 |
| PFBS | 3 ppt | 7.1 | 3.8 | 4.9 | – | 5.6 |
| PFHpA | 3 ppt | < 3 | < 3 | < 3 | – | 3.9 |
| PFHxA | 3 ppt | 3.7 | 3.9 | 3.6 | – | 5.3 |
| PFHxS | 3 ppt | < 3 | < 3 | < 3 | – | 3.4 |
| PFOA | 4 ppt | 7.3 | 8.2 | 8.5 | – | 17.5 |
| PFOS | 4 ppt | 14.9 | 13.7 | 12.8 | – | 27.9 |
| PFPeA | 3 ppt | 3.1 | 3.3 | < 3 | – | 3 |
| 11Cl-PF3OUdS | 5 ppt | < 5 | < 5 | < 5 | – | < 5 |
| 4:2 FTS | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| 6:2 FTS | 5 ppt | < 5 | < 5 | < 5 | – | < 5 |
| 8:2 FTS | 5 ppt | < 5 | < 5 | < 5 | – | < 5 |
| 9Cl-PF3ONS | 2 ppt | < 2 | < 2 | < 2 | – | < 2 |
| ADONA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| HFPO-DA | 5 ppt | < 5 | < 5 | < 5 | – | < 5 |
| NEtFOSAA | 5 ppt | < 5 | < 5 | < 5 | < 5 | – |
| NFDHA | 20 ppt | < 20 | < 20 | < 20 | – | < 20 |
| NMeFOSAA | 6 ppt | < 6 | < 6 | < 6 | < 6 | – |
| PFDA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFDoA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFEESA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFHpS | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFMBA | 3 ppt | < 3 | < 3 | < 3 | – | < 3 |
| PFMPA | 4 ppt | < 4 | < 4 | < 4 | – | < 4 |
| PFNA | 4 ppt | < 4 | < 4 | < 4 | – | < 4 |
| PFPeS | 4 ppt | < 4 | < 4 | < 4 | – | < 4 |
| PFTA | 8 ppt | < 8 | < 8 | < 8 | < 8 | – |
| PFTrDA | 7 ppt | < 7 | < 7 | < 7 | < 7 | – |
| PFUnA | 2 ppt | < 2 | < 2 | < 2 | – | < 2 |
| lithium | 9 µg/L | < 9 | < 9 | < 9 | < 9 | – |
West Lawrence facility 08157 · sample point EP004 · groundwater
| Compound | MRL | 2023-07-25 SE1 | 2024-01-23 SE2 |
|---|---|---|---|
| 11Cl-PF3OUdS | 5 ppt | < 5 | < 5 |
| 4:2 FTS | 3 ppt | < 3 | < 3 |
| 6:2 FTS | 5 ppt | < 5 | < 5 |
| 8:2 FTS | 5 ppt | < 5 | < 5 |
| 9Cl-PF3ONS | 2 ppt | < 2 | < 2 |
| ADONA | 3 ppt | < 3 | < 3 |
| HFPO-DA | 5 ppt | < 5 | < 5 |
| NEtFOSAA | 5 ppt | < 5 | < 5 |
| NFDHA | 20 ppt | < 20 | < 20 |
| NMeFOSAA | 6 ppt | < 6 | < 6 |
| PFBA | 5 ppt | < 5 | < 5 |
| PFBS | 3 ppt | < 3 | < 3 |
| PFDA | 3 ppt | < 3 | < 3 |
| PFDoA | 3 ppt | < 3 | < 3 |
| PFEESA | 3 ppt | < 3 | < 3 |
| PFHpA | 3 ppt | < 3 | < 3 |
| PFHpS | 3 ppt | < 3 | < 3 |
| PFHxA | 3 ppt | < 3 | < 3 |
| PFHxS | 3 ppt | < 3 | < 3 |
| PFMBA | 3 ppt | < 3 | < 3 |
| PFMPA | 4 ppt | < 4 | < 4 |
| PFNA | 4 ppt | < 4 | < 4 |
| PFOA | 4 ppt | < 4 | < 4 |
| PFOS | 4 ppt | < 4 | < 4 |
| PFPeA | 3 ppt | < 3 | < 3 |
| PFPeS | 4 ppt | < 4 | < 4 |
| PFTA | 8 ppt | < 8 | < 8 |
| PFTrDA | 7 ppt | < 7 | < 7 |
| PFUnA | 2 ppt | < 2 | < 2 |
| lithium | 9 µg/L | < 9 | < 9 |
Statistics by compound
| Compound | Results | Detected | Highest (date) | Mean bounds | KM median | P75 | P90 | P95 |
|---|---|---|---|---|---|---|---|---|
| PFBS | 26 | 81% | 8.5 2023-10-11 | 4.88–5.46 | 5.6 | 7.1 | 8.2 | 8.4 |
| PFOS | 26 | 81% | 29.5 2024-05-14 | 11.18–11.95 | 10.2 | 14.9 | 26.5 | 27.9 |
| PFBA | 26 | 73% | 37.7 2023-07-25 | 8.15–9.5 | 7.6 | 11.7 | 13.8 | 15 |
| PFHxA | 26 | 73% | 12 2023-10-11 | 3.71–4.52 | 3.7 | 4.6 | 6.6 | 11.6 |
| PFOA | 26 | 62% | 19.8 2024-05-14 | 6.15–7.68 | 7.3 | 8.5 | 17 | 17.5 |
| PFPeA | 26 | 58% | 5.1 2024-01-23 | 1.95–3.22 | 3 | 3.1 | 3.7 | 4.4 |
| PFHxS | 26 | 23% | 3.8 2024-05-14 | 0.77–3.08 | <MRL | <MRL | 3.4 | 3.6 |
| PFHpA | 26 | 12% | 4.3 2024-05-14 | 0.47–3.12 | <MRL | <MRL | 3.9 | 4 |
Never detected (22): 11Cl-PF3OUdS, 4:2 FTS, 6:2 FTS, 8:2 FTS, 9Cl-PF3ONS, ADONA, HFPO-DA, NEtFOSAA, NFDHA, NMeFOSAA, PFDA, PFDoA, PFEESA, PFHpS, PFMBA, PFMPA, PFNA, PFPeS, PFTA, PFTrDA, PFUnA, lithium.
Left-censored Kaplan–Meier statistics (Helsel 2005; Helsel & Lee 2006, NADA for R). Units: ppt; lithium µg/L. Each compound has one reporting limit, so the Kaplan–Meier mean equals the upper mean bound (non-detects at the MRL); the lower bound sets non-detects to 0. “<MRL” = the percentile falls below the reporting limit and cannot be estimated. These describe this system's UCMR 5 samples, not population estimates.
Sources
- EPA UCMR 5 occurrence data text files (UCMR5_All.txt; samples 2023-01-09 to 2026-04-01; data summary dated Jul 2026)
- EPA SDWIS via ECHO SDWA downloads, quarter 2026Q3
- EPA Public Water System Service Areas v3 (Mar 2026)
- US Census Bureau cartographic boundary counties 1:500k, 2024
- EPA/USGS NHDPlus V2 (medium resolution) flowlines, Strahler order 2+
Data build fc6f98c02177 · 2026-10-18T04:09Z · UCMR 5 release Jul2026 · SDWIS 2026Q3. Data and methods.