- PWSID
- TX2200012
- State
- Texas
- System type
- community water system (CWS)
- Population served
- 955,900
- City
- Fort Worth
- Counties
- Denton County, Parker County, Tarrant County, Wise County
- Primary source water
- surface water
- UCMR 5 sampling
- 2023-01-23 to 2024-01-24 · 5 entry point(s) · water types: SW
- Service-area boundary
- authoritative
Hazard Index 1–3 × its limit highest single result
Hazard Index 1–3 × 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.
Compared with EPA's 2024 values
| Highest single result | Worst entry-point average* | Limit | |
|---|---|---|---|
| PFOA (ppt) | 8.3 | 5.9 | 4 |
| PFOS (ppt) | 7.3 | 6.17 | 4 |
| Hazard Index | 2.583 | 1.612 | 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 2023-01-23 to 2024-01-24 · 5 entry point(s) · water types: SW · 20 sampling visits. PFAS in ppt (ng/L).
| Date | Entry point | Event | PFOA | PFOS | HI | Other detections |
|---|---|---|---|---|---|---|
| 2023-01-23 | Eagle Mountain WTP (SW) | SE1 | <4 | <4 | 0 | PFBA 5.5 |
| 2023-01-23 | Rolling Hills WTP (SW) | SE1 | <4 | <4 | 0 | PFBA 7.3, PFPeA 3.3 |
| 2023-01-23 | South Holly WTP (SW) | SE1 | 4.2 | 4 | 1.292 | PFBA 6.8, PFHxA 6.6, PFPeA 4.3 |
| 2023-01-23 | Westside Water TP (SW) | SE1 | <4 | <4 | 0 | PFBA 5.5, PFPeA 3.2 |
| 2023-04-10 | Eagle Mountain WTP (SW) | SE2 | <4 | <4 | 0 | PFBA 7.6, PFPeA 3.6 |
| 2023-04-10 | North Holly WTP (SW) | SE1 | 7.9 | 7.3 | 2.492 | PFBA 8.2, PFHxA 10, PFPeA 6 |
| 2023-04-10 | Rolling Hills WTP (SW) | SE2 | <4 | <4 | 0 | PFBA 6.8, PFHxA 3.3, PFPeA 3.5 |
| 2023-04-10 | South Holly WTP (SW) | SE2 | 8.3 | 7 | 2.583 | PFBA 8.7, PFHxA 10.6, PFPeA 6.2 |
| 2023-04-10 | Westside Water TP (SW) | SE2 | <4 | <4 | 0 | PFBA 7.2, PFHxA 3.9, PFPeA 4.2 |
| 2023-07-24 | Eagle Mountain WTP (SW) | SE3 | <4 | <4 | 0 | PFBA 7.5, PFHxA 3, PFPeA 3.8 |
| 2023-07-24 | North Holly WTP (SW) | SE2 | 5 | 5.4 | 1.222 | PFBA 9, PFHxA 6.8, PFPeA 4.8 |
| 2023-07-24 | Rolling Hills WTP (SW) | SE3 | <4 | <4 | 0.002 | PFBA 6.3, PFHxA 3.1, PFPeA 3.5 |
| 2023-07-24 | South Holly WTP (SW) | SE3 | 4.9 | 5.6 | 0.852 | PFBA 8.6, PFHxA 5.7, PFPeA 5 |
| 2023-07-24 | Westside Water TP (SW) | SE3 | <4 | <4 | 0.002 | PFBA 6.6, PFHxA 3.5, PFPeA 4.1 |
| 2023-10-09 | Eagle Mountain WTP (SW) | SE4 | <4 | <4 | 0 | PFBA 8.3, PFHxA 3.5, PFPeA 3.9 |
| 2023-10-09 | North Holly WTP (SW) | SE3 | 4.5 | 5 | 0.812 | PFBA 10, PFHxA 6, PFPeA 5 |
| 2023-10-09 | Rolling Hills WTP (SW) | SE4 | <4 | <4 | 0 | PFBA 7.4, PFHxA 3.7, PFPeA 4.1 |
| 2023-10-09 | South Holly WTP (SW) | SE4 | 4.7 | 4.6 | 0.792 | PFBA 9.7, PFHxA 5.8, PFPeA 5.1 |
| 2023-10-09 | Westside Water TP (SW) | SE4 | <4 | <4 | 0 | PFBA 6.9, PFHxA 3.4, PFPeA 3.7 |
| 2024-01-24 | North Holly WTP (SW) | SE4 | 6.2 | 7 | 1.922 | PFBA 7.3, PFHxA 8.4, PFPeA 5.4 |
“<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
600 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.
Eagle Mountain WTP facility 58297 · sample point EP005MC4 · surface water
| Compound | MRL | 2023-01-23 SE1 | 2023-04-10 SE2 | 2023-07-24 SE3 | 2023-10-09 SE4 |
|---|---|---|---|---|---|
| PFBA | 5 ppt | 5.5 | 7.6 | 7.5 | 8.3 |
| PFHxA | 3 ppt | < 3 | < 3 | 3 | 3.5 |
| PFPeA | 3 ppt | < 3 | 3.6 | 3.8 | 3.9 |
| 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 |
| PFBS | 3 ppt | < 3 | < 3 | < 3 | < 3 |
| 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 |
| PFOA | 4 ppt | < 4 | < 4 | < 4 | < 4 |
| PFOS | 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 |
North Holly WTP facility 58294 · sample point EP001MC1 · surface water
| Compound | MRL | 2023-04-10 SE1 | 2023-07-24 SE2 | 2023-10-09 SE3 | 2024-01-24 SE4 |
|---|---|---|---|---|---|
| PFBA | 5 ppt | 8.2 | 9 | 10 | 7.3 |
| PFBS | 3 ppt | 4.9 | 4 | 4.1 | 4.9 |
| PFHxA | 3 ppt | 10 | 6.8 | 6 | 8.4 |
| PFHxS | 3 ppt | 24.9 | 12.2 | 8.1 | 19.2 |
| PFOA | 4 ppt | 7.9 | 5 | 4.5 | 6.2 |
| PFOS | 4 ppt | 7.3 | 5.4 | 5 | 7 |
| PFPeA | 3 ppt | 6 | 4.8 | 5 | 5.4 |
| 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 |
Rolling Hills WTP facility 58296 · sample point EP004MC3 · surface water
| Compound | MRL | 2023-01-23 SE1 | 2023-04-10 SE2 | 2023-07-24 SE3 | 2023-10-09 SE4 |
|---|---|---|---|---|---|
| PFBA | 5 ppt | 7.3 | 6.8 | 6.3 | 7.4 |
| PFBS | 3 ppt | < 3 | < 3 | 3.3 | < 3 |
| PFHxA | 3 ppt | < 3 | 3.3 | 3.1 | 3.7 |
| PFPeA | 3 ppt | 3.3 | 3.5 | 3.5 | 4.1 |
| 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 |
| PFOA | 4 ppt | < 4 | < 4 | < 4 | < 4 |
| PFOS | 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 |
South Holly WTP facility 58295 · sample point EP003MC2 · surface water
| Compound | MRL | 2023-01-23 SE1 | 2023-04-10 SE2 | 2023-07-24 SE3 | 2023-10-09 SE4 |
|---|---|---|---|---|---|
| PFBA | 5 ppt | 6.8 | 8.7 | 8.6 | 9.7 |
| PFBS | 3 ppt | 3.5 | 4.9 | 4.9 | 4.2 |
| PFHxA | 3 ppt | 6.6 | 10.6 | 5.7 | 5.8 |
| PFHxS | 3 ppt | 12.9 | 25.8 | 8.5 | 7.9 |
| PFOA | 4 ppt | 4.2 | 8.3 | 4.9 | 4.7 |
| PFOS | 4 ppt | 4 | 7 | 5.6 | 4.6 |
| PFPeA | 3 ppt | 4.3 | 6.2 | 5 | 5.1 |
| 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 |
Westside Water TP facility 21876 · sample point EP006MC5 · surface water
| Compound | MRL | 2023-01-23 SE1 | 2023-04-10 SE2 | 2023-07-24 SE3 | 2023-10-09 SE4 |
|---|---|---|---|---|---|
| PFBA | 5 ppt | 5.5 | 7.2 | 6.6 | 6.9 |
| PFBS | 3 ppt | < 3 | < 3 | 3.2 | < 3 |
| PFHxA | 3 ppt | < 3 | 3.9 | 3.5 | 3.4 |
| PFPeA | 3 ppt | 3.2 | 4.2 | 4.1 | 3.7 |
| 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 |
| PFOA | 4 ppt | < 4 | < 4 | < 4 | < 4 |
| PFOS | 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 |
Statistics by compound
| Compound | Results | Detected | Highest (date) | Mean bounds | KM median | P75 | P90 | P95 |
|---|---|---|---|---|---|---|---|---|
| PFBA | 20 | 100% | 10 2023-10-09 | 7.56–7.56 | 7.3 | 8.3 | 9 | 9.7 |
| PFPeA | 20 | 95% | 6.2 2023-04-10 | 4.13–4.29 | 4.1 | 5 | 5.4 | 6 |
| PFHxA | 20 | 80% | 10.6 2023-04-10 | 4.37–4.96 | 3.5 | 6 | 8.4 | 10 |
| PFBS | 20 | 50% | 4.9 2023-04-10 | 2.1–3.6 | <MRL | 4.1 | 4.9 | 4.9 |
| PFHxS | 20 | 40% | 25.8 2023-04-10 | 5.97–7.78 | <MRL | 8.5 | 19.2 | 24.9 |
| PFOA | 20 | 40% | 8.3 2023-04-10 | 2.29–4.68 | <MRL | 4.7 | 6.2 | 7.9 |
| PFOS | 20 | 40% | 7.3 2023-04-10 | 2.29–4.7 | <MRL | 5 | 7 | 7 |
Never detected (23): 11Cl-PF3OUdS, 4:2 FTS, 6:2 FTS, 8:2 FTS, 9Cl-PF3ONS, ADONA, HFPO-DA, NEtFOSAA, NFDHA, NMeFOSAA, 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 2023-01-09 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.