No health-based violations on EPA record since 2016.
Serves about 5,205 people (1,740 connections) with surface water from its own intake.
From EPA's record for TX2340019. PurityMap is independent of South Tawakoni WSC.
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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 March 2024 to May 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorooctanesulfonic acid (PFOS) | 7.3 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| Perfluorohexanesulfonic acid (PFHxS) | 3 ng/L | 10 ng/L federal MCL (2024) | Within a historical reference; current applicability unverified | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| Perfluorobutanoic acid (PFBA) | 6.1 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| Perfluoropentanoic acid (PFPeA) | 3.6 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| 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 | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| 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 | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| 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 | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| 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 | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| 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 | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| Lithium | < 9 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2024-03-18 to 2024-12-17 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-18 to 2024-12-17 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-18 to 2024-12-17 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| Perfluorobutanesulfonic acid (PFBS) | < 3 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-18 to 2024-12-17 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-18 to 2024-12-17 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-18 to 2025-05-05 | UCMR5 Analytical Results: SOUTH TAWAKONI WSC (TX2340019) |
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 →South Tawakoni WSC's phone number on EPA record is 903-873-2509. Its mailing address is 410 W NORTH COMMERCE ST, WILLS POINT, TX 75169-2506.
According to EPA's record, South Tawakoni WSC uses surface water from its own intake.
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 South Tawakoni WSC's latest lead and copper round, which ended in December 2025. The federal action level is 15 µg/L.
PurityMap has no verified website for South Tawakoni WSC. Its phone number on EPA record is 903-873-2509. Its mailing address on EPA record is 410 W NORTH COMMERCE ST, WILLS POINT, TX 75169-2506. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.