No health-based violations on EPA record since 2016.
Serves about 4,179 people (1,393 connections) with surface water bought from Fort Bend County MUD 25 and North Fort Bend Water Authority.
From EPA's record for TX0790229. PurityMap is independent of Fort Bend County MUD 41.
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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 February 2023 to November 2023.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 14.9 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 | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| Perfluorooctanesulfonic acid (PFOS) | 4 ng/L | 4.0 ng/L federal MCL (2024) | Within a historical reference; current applicability unverified | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| Perfluorohexanesulfonic acid (PFHxS) | 4 ng/L | 10 ng/L federal MCL (2024) | Within a historical reference; current applicability unverified | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| Perfluorobutanesulfonic acid (PFBS) | 4.5 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 | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| Perfluorohexanoic acid (PFHxA) | 9.3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | 62.7 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| Perfluorobutanoic acid (PFBA) | 8.2 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| Perfluoropentanoic acid (PFPeA) | 9.1 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| 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 | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| 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 | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| 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 | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| 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 | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-17 | UCMR5 Analytical Results: FORT BEND COUNTY MUD 41 (TX0790229) |
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 →Fort Bend County MUD 41's phone number on EPA record is 713-623-4531. Its mailing address is 1300 POST OAK BLVD STE 1400, HOUSTON, TX 77056-3078.
According to EPA's record, Fort Bend County MUD 41 uses surface water bought from Fort Bend County MUD 25 and North Fort Bend Water Authority.
No health-based violations on EPA record since 2016. EPA also lists 43 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Fort Bend County MUD 41's latest lead and copper round, which ended in December 2023, was 3.17 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Fort Bend County MUD 41. Its phone number on EPA record is 713-623-4531. Its mailing address on EPA record is 1300 POST OAK BLVD STE 1400, HOUSTON, TX 77056-3078. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.