No health-based violations on EPA record since 2016.
Serves about 8,907 people (2,969 connections) with surface water bought from Malcomson Road Utility District, Harris County MUD 18 Heatherwood Hunters, Grant Road PUD and 2 more.
From EPA's record for TX1011602. PurityMap is independent of Faulkey Gully MUD.
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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, in June 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorobutanoic acid (PFBA) | 5.9 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| 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 | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| 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 | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| 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 | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| 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 | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| 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 | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| 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 | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| 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 | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-20 | UCMR5 Analytical Results: FAULKEY GULLY MUD (TX1011602) |
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 →Faulkey Gully MUD's phone number on EPA record is 281-320-2470. Its mailing address is 13121 LOUETTA RD # 1040, CYPRESS, TX 77429-5155.
According to EPA's record, Faulkey Gully MUD uses surface water bought from Malcomson Road Utility District, Harris County MUD 18 Heatherwood Hunters, Grant Road PUD and 2 more.
No health-based violations on EPA record since 2016. EPA also lists 1 missed or late test or report in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Faulkey Gully MUD's latest lead and copper round, which ended in June 2024, was 1.54 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Faulkey Gully MUD. Its phone number on EPA record is 281-320-2470. Its mailing address on EPA record is 13121 LOUETTA RD # 1040, CYPRESS, TX 77429-5155. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.