No health-based violations on EPA record since 2016.
Serves about 4,569 people (1,523 connections) with groundwater from its own wells.
From EPA's record for TX2120020. PurityMap is independent of Sand Flat 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 May 2023 to March 2024.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| 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 | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| 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 | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| 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 | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| 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 | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| 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 | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| 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 | 2023-05-22 to 2023-12-05 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-22 to 2023-12-05 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-22 to 2023-12-05 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| 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 | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-22 to 2023-12-05 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-22 to 2023-12-05 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-22 to 2024-03-06 | UCMR5 Analytical Results: SAND FLAT WSC (TX2120020) |
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 →Sand Flat WSC's phone number on EPA record is 903-526-5243. Its mailing address is 14874 FM 14, TYLER, TX 75706-4932.
According to EPA's record, Sand Flat WSC uses groundwater from its own wells.
No health-based violations on EPA record since 2016. EPA also lists 4 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in Sand Flat 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 Sand Flat WSC. Its phone number on EPA record is 903-526-5243. Its mailing address on EPA record is 14874 FM 14, TYLER, TX 75706-4932. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.