- PWSID
- TX2270014
- State
- Texas
- System type
- community water system (CWS)
- Population served
- 63,464
- City
- Pflugerville
- Counties
- Travis County
- Primary source water
- surface water
- UCMR 5 sampling
- 2025-03-17 to 2025-12-01 · 3 entry point(s) · water types: GW;SW
- Service-area boundary
- authoritative
PFOS ≥ 3 × its limit highest single result
PFOS ≥ 3 × its limit worst entry-point average
Open on the Texas map · All Texas 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
- Manville Wsc (TX2270033)
Seller's highest results: PFOA 5.9 ppt · PFOS 12.4 ppt · HI 3.135 · detected: PFBA;PFBS;PFHpA;PFHxA;PFHxS;PFNA;PFOA;PFOS;PFPeA;PFUnA
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) | 6.3 | 6.3 | 4 |
| PFOS (ppt) | 14.4 | 13.95 | 4 |
| Hazard Index | 3.195 | 3.145 | 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 Texas PFAS drinking-water standard in effect or proposed as of 2026-10-17: No state PFAS drinking-water standard; TCEQ implementing federal NPDWR (BCLP state survey, Jan 2026).
Sampling history
Sampled 2025-03-17 to 2025-12-01 · 3 entry point(s) · water types: GW;SW · 10 sampling visits. PFAS in ppt (ng/L).
| Date | Entry point | Event | PFOA | PFOS | HI | Other detections |
|---|---|---|---|---|---|---|
| 2025-03-17 | Surface Water Treatment Plant (SW) | SE1 | <4 | 5.5 | 0.382 | PFHxA 3.2, PFPeA 3.3 |
| 2025-03-17 | Well 6 (GW) | SE1 | 6.3 | 12.6 | 3.145 | PFBA 7.9, PFHpA 4.8, PFHxA 8.4, PFPeA 11.8, PFUnA 2.3 |
| 2025-05-12 | Surface Water Treatment Plant (SW) | SE1 | n/a | n/a | n/a | none |
| 2025-05-12 | Well 7 (GW) | SE1 | 6.1 | 13.5 | 3.095 | PFBA 8.1, PFHpA 4.5, PFHxA 8.3, PFPeA 11.5, PFUnA 2.7, lithium 11 µg/L |
| 2025-06-26 | Surface Water Treatment Plant (SW) | SE2 | n/a | n/a | n/a | lithium 9.1 µg/L |
| 2025-08-18 | Surface Water Treatment Plant (SW) | SE2 | <4 | <4 | 0.302 | PFBA 7.1, PFHxA 3.2, PFPeA 3.3 |
| 2025-09-23 | Well 6 (GW) | SE2 | 6.3 | 14 | 3.115 | PFBA 8, PFHpA 4.7, PFHxA 9.3, PFPeA 13.3, PFUnA 2.6 |
| 2025-09-23 | Well 7 (GW) | SE2 | 6.1 | 14.4 | 3.195 | PFBA 8, PFHpA 4.9, PFHxA 9.1, PFPeA 12.2, PFUnA 2.7, lithium 13.9 µg/L |
| 2025-09-24 | Surface Water Treatment Plant (SW) | SE3 | <4 | <4 | 0.37 | PFBA 6.1, PFHxA 3, PFPeA 3.9 |
| 2025-12-01 | Surface Water Treatment Plant (SW) | SE4 | <4 | <4 | 0.3 | PFBA 5.9, lithium 10.3 µg/L |
“<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
240 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.
Surface Water Treatment Plant facility EP007 · sample point EP007 · surface water
| Compound | MRL | 2025-03-17 SE1 | 2025-05-12 SE1 | 2025-06-26 SE2 | 2025-08-18 SE2 | 2025-09-24 SE3 | 2025-12-01 SE4 |
|---|---|---|---|---|---|---|---|
| PFBA | 5 ppt | < 5 | – | – | 7.1 | 6.1 | 5.9 |
| PFBS | 3 ppt | 3.7 | – | – | 3.4 | < 3 | < 3 |
| PFHxA | 3 ppt | 3.2 | – | – | 3.2 | 3 | < 3 |
| PFHxS | 3 ppt | 3.8 | – | – | 3 | 3.7 | 3 |
| PFOS | 4 ppt | 5.5 | – | – | < 4 | < 4 | < 4 |
| PFPeA | 3 ppt | 3.3 | – | – | 3.3 | 3.9 | < 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 | – | 9.1 | – | < 9 | 10.3 |
Well 6 facility EP004 · sample point EP004 · groundwater
| Compound | MRL | 2025-03-17 SE1 | 2025-09-23 SE2 |
|---|---|---|---|
| PFBA | 5 ppt | 7.9 | 8 |
| PFBS | 3 ppt | 9.7 | 9.6 |
| PFHpA | 3 ppt | 4.8 | 4.7 |
| PFHxA | 3 ppt | 8.4 | 9.3 |
| PFHxS | 3 ppt | 6.2 | 6.7 |
| PFNA | 4 ppt | 25.2 | 24.4 |
| PFOA | 4 ppt | 6.3 | 6.3 |
| PFOS | 4 ppt | 12.6 | 14 |
| PFPeA | 3 ppt | 11.8 | 13.3 |
| PFUnA | 2 ppt | 2.3 | 2.6 |
| 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 |
| PFPeS | 4 ppt | < 4 | < 4 |
| PFTA | 8 ppt | < 8 | < 8 |
| PFTrDA | 7 ppt | < 7 | < 7 |
| lithium | 9 µg/L | < 9 | < 9 |
Well 7 facility EP003 · sample point EP003 · groundwater
| Compound | MRL | 2025-05-12 SE1 | 2025-09-23 SE2 |
|---|---|---|---|
| PFBA | 5 ppt | 8.1 | 8 |
| PFBS | 3 ppt | 9.5 | 9.4 |
| PFHpA | 3 ppt | 4.5 | 4.9 |
| PFHxA | 3 ppt | 8.3 | 9.1 |
| PFHxS | 3 ppt | 6.5 | 7.2 |
| PFNA | 4 ppt | 24.4 | 24.7 |
| PFOA | 4 ppt | 6.1 | 6.1 |
| PFOS | 4 ppt | 13.5 | 14.4 |
| PFPeA | 3 ppt | 11.5 | 12.2 |
| PFUnA | 2 ppt | 2.7 | 2.7 |
| 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 |
| 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 |
| PFPeS | 4 ppt | < 4 | < 4 |
| PFTA | 8 ppt | < 8 | < 8 |
| PFTrDA | 7 ppt | < 7 | < 7 |
| lithium | 9 µg/L | 11 | 13.9 |
Statistics by compound
| Compound | Results | Detected | Highest (date) | Mean bounds | KM median | P75 | P90 | P95 |
|---|---|---|---|---|---|---|---|---|
| PFHxS | 8 | 100% | 7.2 2025-09-23 | 5.01–5.01 | 3.8 | 6.5 | 7.2 | 7.2 |
| PFBA | 8 | 88% | 8.1 2025-05-12 | 6.39–7.01 | 7.1 | 8 | 8.1 | 8.1 |
| PFHxA | 8 | 88% | 9.3 2025-09-23 | 5.56–5.94 | 3.2 | 8.4 | 9.3 | 9.3 |
| PFPeA | 8 | 88% | 13.3 2025-09-23 | 7.41–7.79 | 3.9 | 11.8 | 13.3 | 13.3 |
| PFBS | 8 | 75% | 9.7 2025-03-17 | 5.66–6.41 | 3.7 | 9.5 | 9.7 | 9.7 |
| PFOS | 8 | 62% | 14.4 2025-09-23 | 7.5–9 | 5.5 | 13.5 | 14.4 | 14.4 |
| PFHpA | 8 | 50% | 4.9 2025-09-23 | 2.36–3.86 | <MRL | 4.7 | 4.9 | 4.9 |
| PFNA | 8 | 50% | 25.2 2025-03-17 | 12.34–14.34 | <MRL | 24.4 | 25.2 | 25.2 |
| PFOA | 8 | 50% | 6.3 2025-03-17 | 3.1–5.1 | <MRL | 6.1 | 6.3 | 6.3 |
| PFUnA | 8 | 50% | 2.7 2025-05-12 | 1.29–2.29 | <MRL | 2.6 | 2.7 | 2.7 |
| lithium | 8 | 50% | 13.9 2025-09-23 | 5.54–10.04 | <MRL | 10.3 | 13.9 | 13.9 |
Never detected (19): 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, PFPeS, PFTA, PFTrDA.
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 2026-06-16; 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 a6f3d99247ed · 2026-10-18T04:13Z · UCMR 5 release Jul2026 · SDWIS 2026Q3. Data and methods.