- PWSID
- FL6421144
- State
- Florida
- System type
- community water system (CWS)
- Population served
- 54,542
- City
- Belleview
- Counties
- Marion County
- Primary source water
- groundwater
- UCMR 5 sampling
- 2023-05-15 to 2024-01-16 · 13 entry point(s) · water types: GW
- Service-area boundary
- EPA-modeled (Random Forest) — approximate: estimated by EPA with a statistical model, not a surveyed service area
PFOS 1–3 × its limit highest single result
PFOS 1–3 × its limit worst entry-point average
Open on the Florida map · All Florida 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.
Compared with EPA's 2024 values
| Highest single result | Worst entry-point average* | Limit | |
|---|---|---|---|
| PFOA (ppt) | 6.1 | 5.75 | 4 |
| PFOS (ppt) | 10.6 | 8.9 | 4 |
| Hazard Index | 0.313 | 0.158 | 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 Florida PFAS drinking-water standard in effect or proposed as of 2026-10-17: No state PFAS drinking-water MCL. Ch. 2022-203 Laws of Fla. (s. 376.91) concerns contaminated-site cleanup target levels, not drinking water.
Sampling history
Sampled 2023-05-15 to 2024-01-16 · 13 entry point(s) · water types: GW · 35 sampling visits. PFAS in ppt (ng/L).
| Date | Entry point | Event | PFOA | PFOS | HI | Other detections |
|---|---|---|---|---|---|---|
| 2023-05-15 | Plant 10 (Oak Trace Villas) (GW) | SE1 | <4 | <4 | 0.003 | none |
| 2023-05-15 | Plant 11 (Palm Cay) (GW) | SE1 | <4 | 7.6 | 0.004 | PFPeA 3 |
| 2023-05-15 | Plant 12 (Pine Run 2) (GW) | SE1 | n/a | n/a | n/a | none |
| 2023-05-15 | Plant 13 (Pine Run 3) (GW) | SE1 | n/a | n/a | n/a | none |
| 2023-05-15 | Plant 14 (Paddock Downs) (GW) | SE1 | <4 | 4.1 | 0.003 | PFPeA 3 |
| 2023-05-15 | Plant 15 (Majestic Oaks) (GW) | SE1 | <4 | <4 | 0.003 | PFHxA 4.2, PFPeA 5.1 |
| 2023-05-15 | Plant 7 (Timberwalk - Well 3A) (GW) | SE1 | n/a | n/a | n/a | none |
| 2023-05-15 | Plant 8 (Oak Run Wells 3, 4, 5, 7) (GW) | SE1 | <4 | <4 | 0.002 | PFPeA 3.7 |
| 2023-05-15 | Plant 9 (Oak Run Well 6) (GW) | SE1 | <4 | <4 | 0.003 | PFPeA 3.7 |
| 2023-05-17 | Plant 1 (Marion Oaks Well 4) (GW) | SE1 | <4 | <4 | 0 | none |
| 2023-05-17 | Plant 2 (Marion Oaks Well 5A) (GW) | SE1 | <4 | <4 | 0.002 | none |
| 2023-05-17 | Plant 3 (Marion Oaks Well 6) (GW) | SE1 | <4 | <4 | 0.002 | none |
| 2023-05-17 | Plant 6 (Summerglen) (GW) | SE1 | <4 | <4 | 0 | none |
| 2023-05-24 | Plant 7 (Timberwalk - Well 3A) (GW) | SE1 | n/a | n/a | n/a | none |
| 2023-07-10 | Plant 12 (Pine Run 2) (GW) | SE1 | 6.1 | 7.2 | 0.002 | PFHxA 5.5, PFPeA 6.3 |
| 2023-09-18 | Plant 7 (Timberwalk - Well 3A) (GW) | SE1 | <4 | <4 | 0 | none |
| 2023-10-30 | Plant 13 (Pine Run 3) (GW) | SE1 | <4 | <4 | 0 | none |
| 2023-11-27 | Plant 10 (Oak Trace Villas) (GW) | SE2 | <4 | <4 | 0.002 | none |
| 2023-11-27 | Plant 14 (Paddock Downs) (GW) | SE2 | n/a | n/a | n/a | none |
| 2023-11-27 | Plant 15 (Majestic Oaks) (GW) | SE2 | <4 | <4 | 0.004 | PFHxA 5, PFPeA 5.9 |
| 2023-11-27 | Plant 7 (Timberwalk - Well 3A) (GW) | SE2 | <4 | <4 | 0 | none |
| 2023-11-27 | Plant 8 (Oak Run Wells 3, 4, 5, 7) (GW) | SE2 | n/a | n/a | n/a | none |
| 2023-11-27 | Plant 9 (Oak Run Well 6) (GW) | SE2 | <4 | <4 | 0.002 | none |
| 2023-11-29 | Plant 1 (Marion Oaks Well 4) (GW) | SE2 | <4 | <4 | 0 | none |
| 2023-11-29 | Plant 11 (Palm Cay) (GW) | SE2 | <4 | 6.7 | 0.003 | none |
| 2023-11-29 | Plant 12 (Pine Run 2) (GW) | SE2 | 5.4 | 10.6 | 0.313 | PFHxA 4.7, PFPeA 6.4 |
| 2023-11-29 | Plant 13 (Pine Run 3) (GW) | SE2 | <4 | <4 | 0 | none |
| 2023-11-29 | Plant 2 (Marion Oaks Well 5A) (GW) | SE2 | <4 | <4 | 0.002 | none |
| 2023-11-29 | Plant 3 (Marion Oaks Well 6) (GW) | SE2 | <4 | <4 | 0 | none |
| 2023-11-29 | Plant 6 (Summerglen) (GW) | SE2 | <4 | <4 | 0 | none |
| 2023-12-20 | Plant 10 (Oak Trace Villas) (GW) | SE2 | n/a | n/a | n/a | none |
| 2023-12-20 | Plant 7 (Timberwalk - Well 3A) (GW) | SE2 | n/a | n/a | n/a | none |
| 2023-12-20 | Plant 9 (Oak Run Well 6) (GW) | SE2 | n/a | n/a | n/a | none |
| 2024-01-16 | Plant 14 (Paddock Downs) (GW) | SE2 | 4.7 | 4.4 | 0.002 | PFHxA 4.9, PFPeA 7.7 |
| 2024-01-16 | Plant 8 (Oak Run Wells 3, 4, 5, 7) (GW) | SE2 | 4.9 | 4.9 | 0.003 | PFHxA 5.8, PFPeA 9.6 |
“<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.
Plant 1 (Marion Oaks Well 4) facility 00001 · sample point 1144001 · groundwater
| Compound | MRL | 2023-05-17 SE1 | 2023-11-29 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 |
Plant 10 (Oak Trace Villas) facility 00008 · sample point 1144008 · groundwater
| Compound | MRL | 2023-05-15 SE1 | 2023-11-27 SE2 | 2023-12-20 SE2 |
|---|---|---|---|---|
| PFBS | 3 ppt | 5.1 | 4.7 | – |
| 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 | – |
| 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 | – |
Plant 11 (Palm Cay) facility 00009 · sample point 1144009 · groundwater
| Compound | MRL | 2023-05-15 SE1 | 2023-11-29 SE2 |
|---|---|---|---|
| PFBS | 3 ppt | 8.4 | 5.6 |
| PFOS | 4 ppt | 7.6 | 6.7 |
| PFPeA | 3 ppt | 3 | < 3 |
| 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 |
| 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 |
| 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 |
Plant 12 (Pine Run 2) facility 00010 · sample point 1144010 · groundwater
| Compound | MRL | 2023-05-15 SE1 | 2023-07-10 SE1 | 2023-11-29 SE2 |
|---|---|---|---|---|
| PFBS | 3 ppt | – | 4.5 | 5.4 |
| PFHxA | 3 ppt | – | 5.5 | 4.7 |
| PFHxS | 3 ppt | – | < 3 | 3.1 |
| PFOA | 4 ppt | – | 6.1 | 5.4 |
| PFOS | 4 ppt | – | 7.2 | 10.6 |
| PFPeA | 3 ppt | – | 6.3 | 6.4 |
| 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 |
| 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 |
| PFMBA | 3 ppt | – | < 3 | < 3 |
| PFMPA | 4 ppt | – | < 4 | < 4 |
| PFNA | 4 ppt | – | < 4 | < 4 |
| 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 |
Plant 13 (Pine Run 3) facility 00011 · sample point 1144011 · groundwater
| Compound | MRL | 2023-05-15 SE1 | 2023-10-30 SE1 | 2023-11-29 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 |
Plant 14 (Paddock Downs) facility 00012 · sample point 1144012 · groundwater
| Compound | MRL | 2023-05-15 SE1 | 2023-11-27 SE2 | 2024-01-16 SE2 |
|---|---|---|---|---|
| PFBS | 3 ppt | 6.1 | – | 4.7 |
| PFHxA | 3 ppt | < 3 | – | 4.9 |
| PFOA | 4 ppt | < 4 | – | 4.7 |
| PFOS | 4 ppt | 4.1 | – | 4.4 |
| PFPeA | 3 ppt | 3 | – | 7.7 |
| 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 |
| 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 |
| PFHxS | 3 ppt | < 3 | – | < 3 |
| PFMBA | 3 ppt | < 3 | – | < 3 |
| PFMPA | 4 ppt | < 4 | – | < 4 |
| PFNA | 4 ppt | < 4 | – | < 4 |
| 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 | – |
Plant 15 (Majestic Oaks) facility 00013 · sample point 1144013 · groundwater
| Compound | MRL | 2023-05-15 SE1 | 2023-11-27 SE2 |
|---|---|---|---|
| PFBS | 3 ppt | 5.3 | 7.5 |
| PFHxA | 3 ppt | 4.2 | 5 |
| PFPeA | 3 ppt | 5.1 | 5.9 |
| 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 |
| 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 |
| 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 |
| 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 |
Plant 2 (Marion Oaks Well 5A) facility 00002 · sample point 1144002 · groundwater
| Compound | MRL | 2023-05-17 SE1 | 2023-11-29 SE2 |
|---|---|---|---|
| PFBS | 3 ppt | 3.6 | 3.5 |
| 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 |
| 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 |
Plant 3 (Marion Oaks Well 6) facility 00003 · sample point 1144003 · groundwater
| Compound | MRL | 2023-05-17 SE1 | 2023-11-29 SE2 |
|---|---|---|---|
| PFBS | 3 ppt | 3.1 | < 3 |
| 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 |
| 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 |
Plant 6 (Summerglen) facility 00004 · sample point 1144004 · groundwater
| Compound | MRL | 2023-05-17 SE1 | 2023-11-29 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 |
Plant 7 (Timberwalk - Well 3A) facility 00005 · sample point 1144005 · groundwater
| Compound | MRL | 2023-05-15 SE1 | 2023-05-24 SE1 | 2023-09-18 SE1 | 2023-11-27 SE2 | 2023-12-20 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 | – |
Plant 8 (Oak Run Wells 3, 4, 5, 7) facility 00006 · sample point 1144006 · groundwater
| Compound | MRL | 2023-05-15 SE1 | 2023-11-27 SE2 | 2024-01-16 SE2 |
|---|---|---|---|---|
| PFBS | 3 ppt | 3.7 | – | 5.7 |
| PFHxA | 3 ppt | < 3 | – | 5.8 |
| PFOA | 4 ppt | < 4 | – | 4.9 |
| PFOS | 4 ppt | < 4 | – | 4.9 |
| PFPeA | 3 ppt | 3.7 | – | 9.6 |
| 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 |
| 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 |
| PFHxS | 3 ppt | < 3 | – | < 3 |
| PFMBA | 3 ppt | < 3 | – | < 3 |
| PFMPA | 4 ppt | < 4 | – | < 4 |
| PFNA | 4 ppt | < 4 | – | < 4 |
| 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 | – |
Plant 9 (Oak Run Well 6) facility 00007 · sample point 1144007 · groundwater
| Compound | MRL | 2023-05-15 SE1 | 2023-11-27 SE2 | 2023-12-20 SE2 |
|---|---|---|---|---|
| PFBS | 3 ppt | 5.2 | 3.1 | – |
| PFPeA | 3 ppt | 3.7 | < 3 | – |
| 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 | – |
| 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 | – |
| 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 | 65% | 8.4 2023-05-15 | 3.28–4.32 | 3.6 | 5.3 | 6.1 | 7.5 |
| PFPeA | 26 | 38% | 9.6 2024-01-16 | 2.09–3.94 | <MRL | 3.7 | 6.4 | 7.7 |
| PFOS | 26 | 27% | 10.6 2023-11-29 | 1.75–4.67 | <MRL | 4.1 | 7.2 | 7.6 |
| PFHxA | 26 | 23% | 5.8 2024-01-16 | 1.16–3.47 | <MRL | <MRL | 5 | 5.5 |
| PFOA | 26 | 15% | 6.1 2023-07-10 | 0.81–4.2 | <MRL | <MRL | 4.9 | 5.4 |
| PFHxS | 26 | 4% | 3.1 2023-11-29 | 0.12–3 | <MRL | <MRL | <MRL | <MRL |
Never detected (24): 11Cl-PF3OUdS, 4:2 FTS, 6:2 FTS, 8:2 FTS, 9Cl-PF3ONS, ADONA, HFPO-DA, NEtFOSAA, NFDHA, NMeFOSAA, PFBA, PFDA, PFDoA, PFEESA, PFHpA, 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 2023-01-03 to 2026-06-09; 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 77d99d3b80c8 · 2026-10-18T04:10Z · UCMR 5 release Jul2026 · SDWIS 2026Q3. Data and methods.