No health-based violations on EPA record since 2016.
Serves about 7,326 people (2,442 connections) with groundwater from its own wells, and buys water from Reid Road MUD 1, Mills Road MUD and North Harris County Regional Water Autho.
From EPA's record for TX1010541. PurityMap is independent of Emerald Forest Utility District.
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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 July 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorohexanoic acid (PFHxA) | 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| Perfluoropentanoic acid (PFPeA) | 4 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| 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 | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| 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 | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| 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 | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| 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 | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| 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 | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| 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 | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| 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 | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-27 to 2025-07-22 | UCMR5 Analytical Results: EMERALD FOREST UTILITY DISTRICT (TX1010541) |
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 →Emerald Forest Utility District's phone number on EPA record is 713-860-6400. Its mailing address is 3200 SOUTHWEST FWY STE 2600, HOUSTON, TX 77027-7537.
According to EPA's record, Emerald Forest Utility District uses groundwater from its own wells, and buys water from Reid Road MUD 1, Mills Road MUD and North Harris County Regional Water Autho.
No health-based violations on EPA record since 2016. EPA also lists 3 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 Emerald Forest Utility District's latest lead and copper round, which ended in December 2024. The federal action level is 15 µg/L.
PurityMap has no verified website for Emerald Forest Utility District. Its phone number on EPA record is 713-860-6400. Its mailing address on EPA record is 3200 SOUTHWEST FWY STE 2600, HOUSTON, TX 77027-7537. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.