No health-based violations on EPA record since 2016.
Serves about 4,341 people (1,515 connections) with surface water bought from City of Pottsboro.
From EPA's record for TX0910052. PurityMap is independent of Tanglewood on Texoma.
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No health-based violations in the last 10 years, from EPA's SDWIS compliance database.
EPA required this system to test for 30 unregulated and emerging contaminants, from January 2025 to October 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 40.3 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Above the referenced health-based guidance value | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| Perfluorohexanesulfonic acid (PFHxS) | 28 ng/L | 10 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| Perfluorobutanesulfonic acid (PFBS) | 10.2 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Within the referenced health-based guidance value | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| Perfluorohexanoic acid (PFHxA) | 6 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| Perfluorobutanoic acid (PFBA) | 5 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| Perfluoropentanesulfonic acid (PFPeS) | 5.2 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| Perfluoropentanoic acid (PFPeA) | 4.1 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-13 to 2025-07-16 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-13 to 2025-07-16 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-13 to 2025-07-16 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-13 to 2025-07-16 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-13 to 2025-10-13 | UCMR5 Analytical Results: TANGLEWOOD ON TEXOMA (TX0910052) |
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
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Screening: quick check, not lab-grade
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
Turnaround: 5 minutes
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
Get PurityMap updates about this water system.
Follow this water →Tanglewood on Texoma's phone number on EPA record is 737-376-2534. Its mailing address is PO BOX 140164, AUSTIN, TX 78714-0164.
According to EPA's record, Tanglewood on Texoma uses surface water bought from City of Pottsboro.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in Tanglewood on Texoma's latest lead and copper round, which ended in June 2026. The federal action level is 15 µg/L.
PurityMap has no verified website for Tanglewood on Texoma. Its phone number on EPA record is 737-376-2534. Its mailing address on EPA record is PO BOX 140164, AUSTIN, TX 78714-0164. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.