- PWSID
- TX0610036
- State
- Texas
- System type
- community water system (CWS)
- Population served
- 127,911
- City
- Aubrey
- Counties
- Collin County, Denton County, Grayson County
- Primary source water
- surface water (purchased)
- UCMR 5 sampling
- 2025-01-27 to 2025-10-27 · 10 entry point(s) · water types: GW;SW
- Service-area boundary
- authoritative
Other PFAS detected highest single result
Other PFAS detected 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
- Utrwd Regional Water Treatment Plant (TX0610213)
Seller not monitored under UCMR 5.
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) | <MRL | 0 | 4 |
| PFOS (ppt) | <MRL | 0 | 4 |
| Hazard Index | 0 | 0 | 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 2025-01-27 to 2025-10-27 · 10 entry point(s) · water types: GW;SW · 31 sampling visits. PFAS in ppt (ng/L).
| Date | Entry point | Event | PFOA | PFOS | HI | Other detections |
|---|---|---|---|---|---|---|
| 2025-01-27 | 10263 FM 2931, Pilot Point (GW) | SE1 | <4 | <4 | 0 | lithium 41.2 µg/L |
| 2025-01-27 | 10744 Stiles Rd., Pilot Point (GW) | SE1 | <4 | <4 | 0 | lithium 20.8 µg/L |
| 2025-01-27 | 15864 Fritcher Rd, Pilot Point (GW) | SE1 | <4 | <4 | 0 | lithium 21.6 µg/L |
| 2025-01-27 | 17373 FM 428, Celina (GW) | SE1 | <4 | <4 | 0 | lithium 19.2 µg/L |
| 2025-01-27 | 3805 FM 720, Aubrey (SW) | SE1 | <4 | <4 | 0 | none |
| 2025-01-27 | 5066 Hwy 377, Krugerville (GW) | SE1 | <4 | <4 | 0 | lithium 24.4 µg/L |
| 2025-01-27 | 7985 FM 2931, Aubrey (GW) | SE1 | <4 | <4 | 0 | lithium 24.2 µg/L |
| 2025-01-27 | Ike Byrome/FM 2931, Pilot Point (GW) | SE1 | <4 | <4 | 0 | lithium 27.5 µg/L |
| 2025-01-27 | US Hwy 377/Dr Griffin Dr., Cross Roads (GW) | SE1 | <4 | <4 | 0 | lithium 26.7 µg/L |
| 2025-04-21 | 3805 FM 720, Aubrey (SW) | SE2 | <4 | <4 | 0 | none |
| 2025-04-21 | FM 455 and Hwy 377, Pilot Point (GW) | SE1 | <4 | <4 | 0 | lithium 28.4 µg/L |
| 2025-05-12 | 3805 FM 720, Aubrey (SW) | SE1 | n/a | n/a | n/a | none |
| 2025-07-14 | 10263 FM 2931, Pilot Point (GW) | SE2 | n/a | n/a | n/a | lithium 25.1 µg/L |
| 2025-07-14 | 10744 Stiles Rd., Pilot Point (GW) | SE2 | n/a | n/a | n/a | lithium 21.1 µg/L |
| 2025-07-14 | 15864 Fritcher Rd, Pilot Point (GW) | SE2 | n/a | n/a | n/a | lithium 21.5 µg/L |
| 2025-07-14 | 17373 FM 428, Celina (GW) | SE2 | n/a | n/a | n/a | lithium 14 µg/L |
| 2025-07-14 | 3805 FM 720, Aubrey (SW) | SE3 | n/a | n/a | n/a | none |
| 2025-07-14 | 5066 Hwy 377, Krugerville (GW) | SE2 | n/a | n/a | n/a | lithium 25 µg/L |
| 2025-07-14 | 7985 FM 2931, Aubrey (GW) | SE2 | n/a | n/a | n/a | lithium 24.3 µg/L |
| 2025-07-14 | Ike Byrome/FM 2931, Pilot Point (GW) | SE2 | n/a | n/a | n/a | none |
| 2025-07-14 | US Hwy 377/Dr Griffin Dr., Cross Roads (GW) | SE2 | n/a | n/a | n/a | lithium 26.2 µg/L |
| 2025-09-22 | 10263 FM 2931, Pilot Point (GW) | SE2 | <4 | <4 | 0 | none |
| 2025-09-22 | 10744 Stiles Rd., Pilot Point (GW) | SE2 | <4 | <4 | 0 | none |
| 2025-09-22 | 15864 Fritcher Rd, Pilot Point (GW) | SE2 | <4 | <4 | 0 | none |
| 2025-09-22 | 17373 FM 428, Celina (GW) | SE2 | <4 | <4 | 0 | none |
| 2025-09-22 | 3805 FM 720, Aubrey (SW) | SE3 | <4 | <4 | 0 | PFBA 6.4, PFHxA 3.7, PFPeA 4 |
| 2025-09-22 | 5066 Hwy 377, Krugerville (GW) | SE2 | <4 | <4 | 0 | none |
| 2025-09-22 | 7985 FM 2931, Aubrey (GW) | SE2 | <4 | <4 | 0 | none |
| 2025-09-22 | Ike Byrome/FM 2931, Pilot Point (GW) | SE2 | <4 | <4 | 0 | none |
| 2025-09-22 | US Hwy 377/Dr Griffin Dr., Cross Roads (GW) | SE2 | <4 | <4 | 0 | none |
| 2025-10-27 | 3805 FM 720, Aubrey (SW) | SE4 | n/a | n/a | n/a | 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
605 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.
10263 FM 2931, Pilot Point facility 2975 · sample point EP001 · groundwater
| Compound | MRL | 2025-01-27 SE1 | 2025-07-14 SE2 | 2025-09-22 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 | 41.2 | 25.1 | – |
10744 Stiles Rd., Pilot Point facility 2972 · sample point EP003 · groundwater
| Compound | MRL | 2025-01-27 SE1 | 2025-07-14 SE2 | 2025-09-22 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 | 20.8 | 21.1 | – |
15864 Fritcher Rd, Pilot Point facility 1280544 · sample point EP013 · groundwater
| Compound | MRL | 2025-01-27 SE1 | 2025-07-14 SE2 | 2025-09-22 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 | 21.6 | 21.5 | – |
17373 FM 428, Celina facility 90001 · sample point EP014 · groundwater
| Compound | MRL | 2025-01-27 SE1 | 2025-07-14 SE2 | 2025-09-22 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 | 19.2 | 14 | – |
3805 FM 720, Aubrey facility 19771 · sample point EP009 · surface water
| Compound | MRL | 2025-01-27 SE1 | 2025-04-21 SE2 | 2025-05-12 SE1 | 2025-07-14 SE3 | 2025-09-22 SE3 | 2025-10-27 SE4 |
|---|---|---|---|---|---|---|---|
| PFBA | 5 ppt | < 5 | < 5 | – | – | 6.4 | – |
| PFHxA | 3 ppt | < 3 | < 3 | – | – | 3.7 | – |
| PFPeA | 3 ppt | < 3 | < 3 | – | – | 4 | – |
| 11Cl-PF3OUdS | 5 ppt | < 5 | < 5 | – | – | < 5 | – |
| 4:2 FTS | 3 ppt | < 3 | < 3 | – | – | < 3 | – |
| 6:2 FTS | 5 ppt | < 5 | < 5 | – | – | < 5 | – |
| 8:2 FTS | 5 ppt | < 5 | < 5 | – | – | < 5 | – |
| 9Cl-PF3ONS | 2 ppt | < 2 | < 2 | – | – | < 2 | – |
| ADONA | 3 ppt | < 3 | < 3 | – | – | < 3 | – |
| HFPO-DA | 5 ppt | < 5 | < 5 | – | – | < 5 | – |
| NEtFOSAA | 5 ppt | – | < 5 | < 5 | < 5 | – | < 5 |
| NFDHA | 20 ppt | < 20 | < 20 | – | – | < 20 | – |
| NMeFOSAA | 6 ppt | – | < 6 | < 6 | < 6 | – | < 6 |
| PFBS | 3 ppt | < 3 | < 3 | – | – | < 3 | – |
| PFDA | 3 ppt | < 3 | < 3 | – | – | < 3 | – |
| PFDoA | 3 ppt | < 3 | < 3 | – | – | < 3 | – |
| PFEESA | 3 ppt | < 3 | < 3 | – | – | < 3 | – |
| PFHpA | 3 ppt | < 3 | < 3 | – | – | < 3 | – |
| PFHpS | 3 ppt | < 3 | < 3 | – | – | < 3 | – |
| PFHxS | 3 ppt | < 3 | < 3 | – | – | < 3 | – |
| PFMBA | 3 ppt | < 3 | < 3 | – | – | < 3 | – |
| PFMPA | 4 ppt | < 4 | < 4 | – | – | < 4 | – |
| PFNA | 4 ppt | < 4 | < 4 | – | – | < 4 | – |
| PFOA | 4 ppt | < 4 | < 4 | – | – | < 4 | – |
| PFOS | 4 ppt | < 4 | < 4 | – | – | < 4 | – |
| PFPeS | 4 ppt | < 4 | < 4 | – | – | < 4 | – |
| PFTA | 8 ppt | – | < 8 | < 8 | < 8 | – | < 8 |
| PFTrDA | 7 ppt | – | < 7 | < 7 | < 7 | – | < 7 |
| PFUnA | 2 ppt | < 2 | < 2 | – | – | < 2 | – |
| lithium | 9 µg/L | < 9 | < 9 | – | < 9 | – | < 9 |
5066 Hwy 377, Krugerville facility 2971 · sample point EP002 · groundwater
| Compound | MRL | 2025-01-27 SE1 | 2025-07-14 SE2 | 2025-09-22 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 | 24.4 | 25 | – |
7985 FM 2931, Aubrey facility 410045 · sample point EP010 · groundwater
| Compound | MRL | 2025-01-27 SE1 | 2025-07-14 SE2 | 2025-09-22 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 | 24.2 | 24.3 | – |
FM 455 and Hwy 377, Pilot Point facility 2974 · sample point EP005 · groundwater
| Compound | MRL | 2025-04-21 SE1 |
|---|---|---|
| 11Cl-PF3OUdS | 5 ppt | < 5 |
| 4:2 FTS | 3 ppt | < 3 |
| 6:2 FTS | 5 ppt | < 5 |
| 8:2 FTS | 5 ppt | < 5 |
| 9Cl-PF3ONS | 2 ppt | < 2 |
| ADONA | 3 ppt | < 3 |
| HFPO-DA | 5 ppt | < 5 |
| NEtFOSAA | 5 ppt | < 5 |
| NFDHA | 20 ppt | < 20 |
| NMeFOSAA | 6 ppt | < 6 |
| PFBA | 5 ppt | < 5 |
| PFBS | 3 ppt | < 3 |
| PFDA | 3 ppt | < 3 |
| PFDoA | 3 ppt | < 3 |
| PFEESA | 3 ppt | < 3 |
| PFHpA | 3 ppt | < 3 |
| PFHpS | 3 ppt | < 3 |
| PFHxA | 3 ppt | < 3 |
| PFHxS | 3 ppt | < 3 |
| PFMBA | 3 ppt | < 3 |
| PFMPA | 4 ppt | < 4 |
| PFNA | 4 ppt | < 4 |
| PFOA | 4 ppt | < 4 |
| PFOS | 4 ppt | < 4 |
| PFPeA | 3 ppt | < 3 |
| PFPeS | 4 ppt | < 4 |
| PFTA | 8 ppt | < 8 |
| PFTrDA | 7 ppt | < 7 |
| PFUnA | 2 ppt | < 2 |
| lithium | 9 µg/L | 28.4 |
Ike Byrome/FM 2931, Pilot Point facility 411832 · sample point EP011 · groundwater
| Compound | MRL | 2025-01-27 SE1 | 2025-07-14 SE2 | 2025-09-22 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 | 27.5 | < 9 | – |
US Hwy 377/Dr Griffin Dr., Cross Roads facility 411843 · sample point EP012 · groundwater
| Compound | MRL | 2025-01-27 SE1 | 2025-07-14 SE2 | 2025-09-22 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 | 26.7 | 26.2 | – |
Statistics by compound
| Compound | Results | Detected | Highest (date) | Mean bounds | KM median | P75 | P90 | P95 |
|---|---|---|---|---|---|---|---|---|
| lithium | 21 | 76% | 41.2 2025-01-27 | 18.63–20.77 | 21.6 | 25.1 | 27.5 | 28.4 |
| PFBA | 20 | 5% | 6.4 2025-09-22 | 0.32–5.07 | <MRL | <MRL | <MRL | <MRL |
| PFHxA | 20 | 5% | 3.7 2025-09-22 | 0.18–3.04 | <MRL | <MRL | <MRL | <MRL |
| PFPeA | 20 | 5% | 4 2025-09-22 | 0.2–3.05 | <MRL | <MRL | <MRL | <MRL |
Never detected (26): 11Cl-PF3OUdS, 4:2 FTS, 6:2 FTS, 8:2 FTS, 9Cl-PF3ONS, ADONA, HFPO-DA, NEtFOSAA, NFDHA, NMeFOSAA, PFBS, PFDA, PFDoA, PFEESA, PFHpA, PFHpS, PFHxS, PFMBA, PFMPA, PFNA, PFOA, PFOS, PFPeS, PFTA, PFTrDA, PFUnA.
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.