- PWSID
- FL3640287
- State
- Florida
- System type
- community water system (CWS)
- Population served
- 81,006
- City
- Deltona
- Counties
- Volusia County
- Primary source water
- groundwater
- UCMR 5 sampling
- 2023-09-06 to 2024-08-28 · 11 entry point(s) · water types: GW
- Service-area boundary
- authoritative
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) | 6.8 | 5.85 | 4 |
| PFOS (ppt) | 10.8 | 10.35 | 4 |
| Hazard Index | 0.655 | 0.524 | 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 2023-09-06 to 2024-08-28 · 11 entry point(s) · water types: GW · 52 sampling visits. PFAS in ppt (ng/L).
| Date | Entry point | Event | PFOA | PFOS | HI | Other detections |
|---|---|---|---|---|---|---|
| 2023-09-06 | Courtland TP (GW) | SE1 | n/a | n/a | n/a | none |
| 2023-09-06 | Magdalena wtp (GW) | SE1 | n/a | n/a | n/a | none |
| 2023-09-06 | Normandy WTP (GW) | SE1 | n/a | n/a | n/a | none |
| 2023-09-06 | Plant 11 (GW) | SE1 | n/a | n/a | n/a | none |
| 2023-09-06 | Sagamore WTP (GW) | SE1 | n/a | n/a | n/a | none |
| 2023-09-06 | Saxon WTP (GW) | SE1 | n/a | n/a | n/a | none |
| 2023-09-06 | Well 23 (GW) | SE1 | n/a | n/a | n/a | none |
| 2023-09-06 | Well 24 (GW) | SE1 | n/a | n/a | n/a | none |
| 2023-09-06 | Well 27 (GW) | SE1 | n/a | n/a | n/a | none |
| 2023-09-06 | Well 28 (GW) | SE1 | n/a | n/a | n/a | none |
| 2023-09-06 | Wellington WTP (GW) | SE1 | n/a | n/a | n/a | none |
| 2023-11-27 | Courtland TP (GW) | SE1 | <4 | <4 | 0 | none |
| 2023-11-27 | Normandy WTP (GW) | SE1 | 4 | 6.8 | 0.003 | PFPeA 3.9 |
| 2023-11-27 | Plant 11 (GW) | SE1 | <4 | <4 | 0.46 | none |
| 2023-11-27 | Sagamore WTP (GW) | SE1 | <4 | 5.9 | 0.003 | none |
| 2023-11-27 | Saxon WTP (GW) | SE1 | <4 | 5.5 | 0.003 | PFPeA 3 |
| 2023-11-27 | Well 23 (GW) | SE1 | <4 | 7.4 | 0.004 | PFPeA 3.6 |
| 2023-11-27 | Well 24 (GW) | SE1 | <4 | <4 | 0 | none |
| 2023-11-27 | Well 27 (GW) | SE1 | 6.3 | 10.8 | 0.565 | PFHpA 3.2, PFHxA 4.8, PFPeA 6.4 |
| 2023-11-27 | Well 28 (GW) | SE1 | <4 | <4 | 0 | none |
| 2023-11-27 | Wellington WTP (GW) | SE1 | 6.3 | 9.7 | 0.655 | PFHxA 3.4, PFPeA 5.1 |
| 2023-12-20 | Well 27 (GW) | SE1 | n/a | n/a | n/a | none |
| 2024-01-31 | Magdalena wtp (GW) | SE1 | n/a | n/a | n/a | none |
| 2024-03-07 | Courtland TP (GW) | SE2 | n/a | n/a | n/a | none |
| 2024-03-07 | Magdalena wtp (GW) | SE2 | n/a | n/a | n/a | none |
| 2024-03-07 | Normandy WTP (GW) | SE2 | n/a | n/a | n/a | none |
| 2024-03-07 | Plant 11 (GW) | SE2 | n/a | n/a | n/a | none |
| 2024-03-07 | Sagamore WTP (GW) | SE2 | n/a | n/a | n/a | none |
| 2024-03-07 | Saxon WTP (GW) | SE2 | n/a | n/a | n/a | none |
| 2024-03-07 | Well 23 (GW) | SE2 | n/a | n/a | n/a | none |
| 2024-03-07 | Well 24 (GW) | SE2 | n/a | n/a | n/a | none |
| 2024-03-07 | Well 27 (GW) | SE2 | n/a | n/a | n/a | none |
| 2024-03-07 | Well 28 (GW) | SE2 | n/a | n/a | n/a | none |
| 2024-03-07 | Wellington WTP (GW) | SE2 | n/a | n/a | n/a | none |
| 2024-04-29 | Magdalena wtp (GW) | SE1 | <4 | <4 | 0.002 | PFHxA 3.2, PFPeA 3.8 |
| 2024-04-29 | Plant 11 (GW) | SE2 | <4 | <4 | 0.572 | none |
| 2024-04-29 | Sagamore WTP (GW) | SE2 | <4 | 6.3 | 0.003 | none |
| 2024-04-29 | Wellington WTP (GW) | SE2 | <4 | 7.9 | 0.394 | PFPeA 3.6 |
| 2024-05-22 | Courtland TP (GW) | SE2 | n/a | n/a | n/a | none |
| 2024-05-22 | Normandy WTP (GW) | SE2 | n/a | n/a | n/a | none |
| 2024-05-22 | Plant 11 (GW) | SE2 | n/a | n/a | n/a | none |
| 2024-05-22 | Saxon WTP (GW) | SE2 | n/a | n/a | n/a | none |
| 2024-05-22 | Well 27 (GW) | SE2 | n/a | n/a | n/a | none |
| 2024-05-22 | Well 28 (GW) | SE2 | n/a | n/a | n/a | none |
| 2024-07-01 | Courtland TP (GW) | SE2 | <4 | <4 | 0 | none |
| 2024-07-01 | Normandy WTP (GW) | SE2 | 4.6 | 10.2 | 0.314 | PFHxA 3.8, PFPeA 4.9 |
| 2024-07-01 | Saxon WTP (GW) | SE2 | 4.5 | 6.7 | 0.344 | PFHxA 3.1, PFPeA 5.1 |
| 2024-07-01 | Well 27 (GW) | SE2 | 5.4 | 9.9 | 0.455 | PFBA 5.8, PFHxA 4.9, PFPeA 5.6 |
| 2024-08-28 | Magdalena wtp (GW) | SE2 | 6.8 | 7.3 | 0.453 | PFHpA 3.1, PFHxA 5, PFPeA 6 |
| 2024-08-28 | Well 23 (GW) | SE2 | 4.6 | 6.1 | 0.004 | PFPeA 4 |
| 2024-08-28 | Well 24 (GW) | SE2 | <4 | <4 | 0 | none |
| 2024-08-28 | Well 28 (GW) | SE2 | <4 | <4 | 0 | none |
“<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
660 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.
Courtland TP facility 00007 · sample point 0287007 · groundwater
| Compound | MRL | 2023-09-06 SE1 | 2023-11-27 SE1 | 2024-03-07 SE2 | 2024-05-22 SE2 | 2024-07-01 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 | – | – |
Magdalena wtp facility 00016 · sample point 0287016 · groundwater
| Compound | MRL | 2023-09-06 SE1 | 2024-01-31 SE1 | 2024-03-07 SE2 | 2024-04-29 SE1 | 2024-08-28 SE2 |
|---|---|---|---|---|---|---|
| PFBS | 3 ppt | – | – | – | 4.5 | 6.6 |
| PFHpA | 3 ppt | – | – | – | < 3 | 3.1 |
| PFHxA | 3 ppt | – | – | – | 3.2 | 5 |
| PFHxS | 3 ppt | – | – | – | < 3 | 4.5 |
| PFOA | 4 ppt | – | – | – | < 4 | 6.8 |
| PFOS | 4 ppt | – | – | – | < 4 | 7.3 |
| PFPeA | 3 ppt | – | – | – | 3.8 | 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 |
| 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 | – | – |
Normandy WTP facility 00003 · sample point 0287003 · groundwater
| Compound | MRL | 2023-09-06 SE1 | 2023-11-27 SE1 | 2024-03-07 SE2 | 2024-05-22 SE2 | 2024-07-01 SE2 |
|---|---|---|---|---|---|---|
| PFBS | 3 ppt | – | 5.5 | – | – | 7.7 |
| PFHxA | 3 ppt | – | < 3 | – | – | 3.8 |
| PFHxS | 3 ppt | – | < 3 | – | – | 3.1 |
| PFOA | 4 ppt | – | 4 | – | – | 4.6 |
| PFOS | 4 ppt | – | 6.8 | – | – | 10.2 |
| PFPeA | 3 ppt | – | 3.9 | – | – | 4.9 |
| 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 |
| 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 11 facility 00009 · sample point 0287007 · groundwater
| Compound | MRL | 2023-09-06 SE1 | 2023-11-27 SE1 | 2024-03-07 SE2 | 2024-04-29 SE2 | 2024-05-22 SE2 |
|---|---|---|---|---|---|---|
| PFBS | 3 ppt | – | < 3 | – | 3.1 | – |
| PFHxS | 3 ppt | – | 4.6 | – | 5.7 | – |
| 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 | – |
| 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 | – | – |
Sagamore WTP facility 00012 · sample point 0287012 · groundwater
| Compound | MRL | 2023-09-06 SE1 | 2023-11-27 SE1 | 2024-03-07 SE2 | 2024-04-29 SE2 |
|---|---|---|---|---|---|
| PFBS | 3 ppt | – | 5.9 | – | 6.6 |
| PFOS | 4 ppt | – | 5.9 | – | 6.3 |
| 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 |
| 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 | – |
Saxon WTP facility 00011 · sample point 0287011 · groundwater
| Compound | MRL | 2023-09-06 SE1 | 2023-11-27 SE1 | 2024-03-07 SE2 | 2024-05-22 SE2 | 2024-07-01 SE2 |
|---|---|---|---|---|---|---|
| PFBS | 3 ppt | – | 5.2 | – | – | 7.9 |
| PFHxA | 3 ppt | – | < 3 | – | – | 3.1 |
| PFHxS | 3 ppt | – | < 3 | – | – | 3.4 |
| PFOA | 4 ppt | – | < 4 | – | – | 4.5 |
| PFOS | 4 ppt | – | 5.5 | – | – | 6.7 |
| PFPeA | 3 ppt | – | 3 | – | – | 5.1 |
| 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 | – | – |
Well 23 facility 00023 · sample point 0287023 · groundwater
| Compound | MRL | 2023-09-06 SE1 | 2023-11-27 SE1 | 2024-03-07 SE2 | 2024-08-28 SE2 |
|---|---|---|---|---|---|
| PFBS | 3 ppt | – | 7.8 | – | 7.9 |
| PFOA | 4 ppt | – | < 4 | – | 4.6 |
| PFOS | 4 ppt | – | 7.4 | – | 6.1 |
| PFPeA | 3 ppt | – | 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 |
| 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 |
| 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 | – |
Well 24 facility 00024 · sample point 0287024 · groundwater
| Compound | MRL | 2023-09-06 SE1 | 2023-11-27 SE1 | 2024-03-07 SE2 | 2024-08-28 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 | – |
Well 27 facility 00014 · sample point 0287014 · groundwater
| Compound | MRL | 2023-09-06 SE1 | 2023-11-27 SE1 | 2023-12-20 SE1 | 2024-03-07 SE2 | 2024-05-22 SE2 | 2024-07-01 SE2 |
|---|---|---|---|---|---|---|---|
| PFBA | 5 ppt | – | < 5 | – | – | – | 5.8 |
| PFBS | 3 ppt | – | 10 | – | – | – | 10.3 |
| PFHpA | 3 ppt | – | 3.2 | – | – | – | < 3 |
| PFHxA | 3 ppt | – | 4.8 | – | – | – | 4.9 |
| PFHxS | 3 ppt | – | 5.6 | – | – | – | 4.5 |
| PFOA | 4 ppt | – | 6.3 | – | – | – | 5.4 |
| PFOS | 4 ppt | – | 10.8 | – | – | – | 9.9 |
| PFPeA | 3 ppt | – | 6.4 | – | – | – | 5.6 |
| 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 | – |
| PFDA | 3 ppt | – | < 3 | – | – | – | < 3 |
| PFDoA | 3 ppt | – | < 3 | – | – | – | < 3 |
| PFEESA | 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 | – | – |
Well 28 facility 00028 · sample point 0287028 · groundwater
| Compound | MRL | 2023-09-06 SE1 | 2023-11-27 SE1 | 2024-03-07 SE2 | 2024-05-22 SE2 | 2024-08-28 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 | – | – |
Wellington WTP facility 00015 · sample point 0287015 · groundwater
| Compound | MRL | 2023-09-06 SE1 | 2023-11-27 SE1 | 2024-03-07 SE2 | 2024-04-29 SE2 |
|---|---|---|---|---|---|
| PFBS | 3 ppt | – | 10.7 | – | 6.9 |
| PFHxA | 3 ppt | – | 3.4 | – | < 3 |
| PFHxS | 3 ppt | – | 6.5 | – | 3.9 |
| PFOA | 4 ppt | – | 6.3 | – | < 4 |
| PFOS | 4 ppt | – | 9.7 | – | 7.9 |
| PFPeA | 3 ppt | – | 5.1 | – | 3.6 |
| 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 |
| 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 | – |
Statistics by compound
| Compound | Results | Detected | Highest (date) | Mean bounds | KM median | P75 | P90 | P95 |
|---|---|---|---|---|---|---|---|---|
| PFBS | 22 | 68% | 10.7 2023-11-27 | 4.85–5.8 | 5.5 | 7.8 | 10 | 10.3 |
| PFOS | 22 | 59% | 10.8 2023-11-27 | 4.57–6.2 | 5.9 | 7.4 | 9.9 | 10.2 |
| PFPeA | 22 | 54% | 6.4 2023-11-27 | 2.5–3.86 | 3 | 4.9 | 5.6 | 6 |
| PFHxS | 22 | 41% | 6.5 2023-11-27 | 1.9–3.67 | <MRL | 4.5 | 5.6 | 5.7 |
| PFOA | 22 | 36% | 6.8 2024-08-28 | 1.93–4.48 | <MRL | 4.6 | 6.3 | 6.3 |
| PFHxA | 22 | 32% | 5 2024-08-28 | 1.28–3.33 | <MRL | 3.2 | 4.8 | 4.9 |
| PFHpA | 22 | 9% | 3.2 2023-11-27 | 0.29–3.01 | <MRL | <MRL | <MRL | 3.1 |
| PFBA | 22 | 4% | 5.8 2024-07-01 | 0.26–5.04 | <MRL | <MRL | <MRL | <MRL |
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 2023-01-03 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.